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mvebu: backport mainline patches from kernel 3.11

Browse Source 
This is a backport of the patches accepted to the Linux mainline related to
mvebu SoC (Armada XP and Armada 370) between Linux v3.10, and Linux v3.11.
This work mainly covers:

* Enabling USB storage, and PCI to mvebu_defconfig.
* Add support for NOR flash.
* Some PCI device tree related updates, and bus parsing.
* Adding Armada XP & 370 PCI driver, and update some clock gating
  specifics.
* Introduce Marvell EBU Device Bus driver.
* Enaling USB in the armada*.dts.
* Enabling, and updating the mvebu-mbus.
* Some SATA and Ethernet related fixes.

Signed-off-by: Seif Mazareeb <seif.mazareeb@gmail.com>
CC: Luka Perkov <luka@openwrt.org>

SVN-Revision: 39564
This commit is contained in:
Luka Perkov 2014-02-11 02:07:38 +00:00
parent 31fb795fd0
commit 69d323f231
47 changed files with 5206 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

28
target/linux/mvebu/patches-3.10/0001-ARM-mvebu-Add-support-for-USB-storage-class-in-mvebu.patch Normal file
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@ -0,0 +1,28 @@
From 6c52eba54044791592aefd139bdc2a7b6127e981 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Wed, 17 Apr 2013 16:51:34 -0300
Subject: [PATCH 001/203] ARM: mvebu: Add support for USB storage class in
mvebu_defconfig
Some boards can have built-in USB storage class controllers so
it's better to have this option included by default.
Currently this option is needed to support built-in USB MMC controller
found in Globalscale Mirabox board.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/configs/mvebu_defconfig | 1 +
1 file changed, 1 insertion(+)
--- a/arch/arm/configs/mvebu_defconfig
+++ b/arch/arm/configs/mvebu_defconfig
@@ -60,6 +60,7 @@ CONFIG_USB_SUPPORT=y
CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
+CONFIG_USB_STORAGE=y
CONFIG_MMC=y
CONFIG_MMC_MVSDIO=y
CONFIG_NEW_LEDS=y

133
target/linux/mvebu/patches-3.10/0002-ARM-mvebu-Use-standard-MMC-binding-for-all-users-of-.patch Normal file
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@ -0,0 +1,133 @@
From cf6eb4599d60cb9fa81465aa018c71d11e19ea6a Mon Sep 17 00:00:00 2001
From: Simon Baatz <gmbnomis@gmail.com>
Date: Mon, 13 May 2013 23:18:58 +0200
Subject: [PATCH 002/203] ARM: mvebu: Use standard MMC binding for all users of
mvsdio
In order to prepare the switch to the standard MMC device tree parser
for mvsdio, adapt all current uses of mvsdio in the dts files to the
standard format.
Signed-off-by: Simon Baatz <gmbnomis@gmail.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/boot/dts/armada-370-db.dts | 1 +
arch/arm/boot/dts/armada-370-mirabox.dts | 1 +
arch/arm/boot/dts/armada-370-rd.dts | 1 +
arch/arm/boot/dts/armada-370-xp.dtsi | 4 ++++
arch/arm/boot/dts/armada-xp-db.dts | 1 +
arch/arm/boot/dts/kirkwood-dreamplug.dts | 1 +
arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts | 2 ++
arch/arm/boot/dts/kirkwood-mplcec4.dts | 2 +-
arch/arm/boot/dts/kirkwood-topkick.dts | 1 +
arch/arm/boot/dts/kirkwood.dtsi | 4 ++++
10 files changed, 17 insertions(+), 1 deletion(-)
--- a/arch/arm/boot/dts/armada-370-db.dts
+++ b/arch/arm/boot/dts/armada-370-db.dts
@@ -74,6 +74,7 @@
*/
status = "disabled";
/* No CD or WP GPIOs */
+ broken-cd;
};
usb@50000 {
--- a/arch/arm/boot/dts/armada-370-mirabox.dts
+++ b/arch/arm/boot/dts/armada-370-mirabox.dts
@@ -99,6 +99,7 @@
* No CD or WP GPIOs: SDIO interface used for
* Wifi/Bluetooth chip
*/
+ broken-cd;
};
usb@50000 {
--- a/arch/arm/boot/dts/armada-370-rd.dts
+++ b/arch/arm/boot/dts/armada-370-rd.dts
@@ -64,6 +64,7 @@
pinctrl-names = "default";
status = "okay";
/* No CD or WP GPIOs */
+ broken-cd;
};
usb@50000 {
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -143,6 +143,10 @@
reg = <0xd4000 0x200>;
interrupts = <54>;
clocks = <&gateclk 17>;
+ bus-width = <4>;
+ cap-sdio-irq;
+ cap-sd-highspeed;
+ cap-mmc-highspeed;
status = "disabled";
};
--- a/arch/arm/boot/dts/armada-xp-db.dts
+++ b/arch/arm/boot/dts/armada-xp-db.dts
@@ -97,6 +97,7 @@
pinctrl-names = "default";
status = "okay";
/* No CD or WP GPIOs */
+ broken-cd;
};
usb@50000 {
--- a/arch/arm/boot/dts/kirkwood-dreamplug.dts
+++ b/arch/arm/boot/dts/kirkwood-dreamplug.dts
@@ -79,6 +79,7 @@
pinctrl-names = "default";
status = "okay";
/* No CD or WP GPIOs */
+ broken-cd;
};
};
--- a/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
+++ b/arch/arm/boot/dts/kirkwood-guruplug-server-plus.dts
@@ -72,6 +72,8 @@
mvsdio@90000 {
status = "okay";
+ /* No CD or WP GPIOs */
+ broken-cd;
};
};
--- a/arch/arm/boot/dts/kirkwood-mplcec4.dts
+++ b/arch/arm/boot/dts/kirkwood-mplcec4.dts
@@ -136,7 +136,7 @@
pinctrl-0 = <&pmx_sdio &pmx_sdio_cd>;
pinctrl-names = "default";
status = "okay";
- cd-gpios = <&gpio1 15 0>;
+ cd-gpios = <&gpio1 15 1>;
/* No WP GPIO */
};
};
--- a/arch/arm/boot/dts/kirkwood-topkick.dts
+++ b/arch/arm/boot/dts/kirkwood-topkick.dts
@@ -154,6 +154,7 @@
pinctrl-names = "default";
status = "okay";
/* No CD or WP GPIOs */
+ broken-cd;
};
};
--- a/arch/arm/boot/dts/kirkwood.dtsi
+++ b/arch/arm/boot/dts/kirkwood.dtsi
@@ -200,6 +200,10 @@
reg = <0x90000 0x200>;
interrupts = <28>;
clocks = <&gate_clk 4>;
+ bus-width = <4>;
+ cap-sdio-irq;
+ cap-sd-highspeed;
+ cap-mmc-highspeed;
status = "disabled";
};
};

71
target/linux/mvebu/patches-3.10/0003-ARM-mvebu-Add-support-for-NOR-flash-device-on-Armada.patch Normal file
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@ -0,0 +1,71 @@
From 74cd8c09ae416261d7595021fc8062836dc750a2 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Fri, 17 May 2013 08:09:58 -0300
Subject: [PATCH 003/203] ARM: mvebu: Add support for NOR flash device on
Armada XP-DB board
The Armada XP Development Board (DB-78460-BP) has a NOR flash device
connected to the Device Bus. This commit adds the device tree node
to support this device.
This SoC supports a flexible and dynamic decoding window allocation
scheme; but since this feature is still not implemented we need
to specify the window base address in the device tree node itself.
This base address has been selected in a completely arbitrary fashion.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/boot/dts/armada-xp-db.dts | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
--- a/arch/arm/boot/dts/armada-xp-db.dts
+++ b/arch/arm/boot/dts/armada-xp-db.dts
@@ -30,6 +30,9 @@
};
soc {
+ ranges = <0 0 0xd0000000 0x100000 /* Internal registers 1MiB */
+ 0xf0000000 0 0xf0000000 0x1000000>; /* Device Bus, NOR 16MiB */
+
internal-regs {
serial@12000 {
clock-frequency = <250000000>;
@@ -156,6 +159,35 @@
status = "okay";
};
};
+
+ devbus-bootcs@10400 {
+ status = "okay";
+ ranges = <0 0xf0000000 0x1000000>;
+
+ /* Device Bus parameters are required */
+
+ /* Read parameters */
+ devbus,bus-width = <8>;
+ devbus,turn-off-ps = <60000>;
+ devbus,badr-skew-ps = <0>;
+ devbus,acc-first-ps = <124000>;
+ devbus,acc-next-ps = <248000>;
+ devbus,rd-setup-ps = <0>;
+ devbus,rd-hold-ps = <0>;
+
+ /* Write parameters */
+ devbus,sync-enable = <0>;
+ devbus,wr-high-ps = <60000>;
+ devbus,wr-low-ps = <60000>;
+ devbus,ale-wr-ps = <60000>;
+
+ /* NOR 16 MiB */
+ nor@0 {
+ compatible = "cfi-flash";
+ reg = <0 0x1000000>;
+ bank-width = <2>;
+ };
+ };
};
};
};

196
target/linux/mvebu/patches-3.10/0004-of-pci-Provide-support-for-parsing-PCI-DT-ranges-pro.patch Normal file
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@ -0,0 +1,196 @@
From 7d375772a601bdf227902454705e402fc65b8bdf Mon Sep 17 00:00:00 2001
From: Andrew Murray <Andrew.Murray@arm.com>
Date: Tue, 7 May 2013 16:31:12 +0100
Subject: [PATCH 004/203] of/pci: Provide support for parsing PCI DT ranges
property
This patch factors out common implementation patterns to reduce overall kernel
code and provide a means for host bridge drivers to directly obtain struct
resources from the DT's ranges property without relying on architecture specific
DT handling. This will make it easier to write archiecture independent host bridge
drivers and mitigate against further duplication of DT parsing code.
This patch can be used in the following way:
struct of_pci_range_parser parser;
struct of_pci_range range;
if (of_pci_range_parser_init(&parser, np))
; //no ranges property
for_each_of_pci_range(&parser, &range) {
/*
directly access properties of the address range, e.g.:
range.pci_space, range.pci_addr, range.cpu_addr,
range.size, range.flags
alternatively obtain a struct resource, e.g.:
struct resource res;
of_pci_range_to_resource(&range, np, &res);
*/
}
Additionally the implementation takes care of adjacent ranges and merges them
into a single range (as was the case with powerpc and microblaze).
Signed-off-by: Andrew Murray <Andrew.Murray@arm.com>
Signed-off-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Rob Herring <rob.herring@calxeda.com>
Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
---
drivers/of/address.c | 67 ++++++++++++++++++++++++++++++++++++++++++++++
include/linux/of_address.h | 48 +++++++++++++++++++++++++++++++++
2 files changed, 115 insertions(+)
--- a/drivers/of/address.c
+++ b/drivers/of/address.c
@@ -223,6 +223,73 @@ int of_pci_address_to_resource(struct de
return __of_address_to_resource(dev, addrp, size, flags, NULL, r);
}
EXPORT_SYMBOL_GPL(of_pci_address_to_resource);
+
+int of_pci_range_parser_init(struct of_pci_range_parser *parser,
+ struct device_node *node)
+{
+ const int na = 3, ns = 2;
+ int rlen;
+
+ parser->node = node;
+ parser->pna = of_n_addr_cells(node);
+ parser->np = parser->pna + na + ns;
+
+ parser->range = of_get_property(node, "ranges", &rlen);
+ if (parser->range == NULL)
+ return -ENOENT;
+
+ parser->end = parser->range + rlen / sizeof(__be32);
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(of_pci_range_parser_init);
+
+struct of_pci_range *of_pci_range_parser_one(struct of_pci_range_parser *parser,
+ struct of_pci_range *range)
+{
+ const int na = 3, ns = 2;
+
+ if (!range)
+ return NULL;
+
+ if (!parser->range || parser->range + parser->np > parser->end)
+ return NULL;
+
+ range->pci_space = parser->range[0];
+ range->flags = of_bus_pci_get_flags(parser->range);
+ range->pci_addr = of_read_number(parser->range + 1, ns);
+ range->cpu_addr = of_translate_address(parser->node,
+ parser->range + na);
+ range->size = of_read_number(parser->range + parser->pna + na, ns);
+
+ parser->range += parser->np;
+
+ /* Now consume following elements while they are contiguous */
+ while (parser->range + parser->np <= parser->end) {
+ u32 flags, pci_space;
+ u64 pci_addr, cpu_addr, size;
+
+ pci_space = be32_to_cpup(parser->range);
+ flags = of_bus_pci_get_flags(parser->range);
+ pci_addr = of_read_number(parser->range + 1, ns);
+ cpu_addr = of_translate_address(parser->node,
+ parser->range + na);
+ size = of_read_number(parser->range + parser->pna + na, ns);
+
+ if (flags != range->flags)
+ break;
+ if (pci_addr != range->pci_addr + range->size ||
+ cpu_addr != range->cpu_addr + range->size)
+ break;
+
+ range->size += size;
+ parser->range += parser->np;
+ }
+
+ return range;
+}
+EXPORT_SYMBOL_GPL(of_pci_range_parser_one);
+
#endif /* CONFIG_PCI */
/*
--- a/include/linux/of_address.h
+++ b/include/linux/of_address.h
@@ -4,6 +4,36 @@
#include <linux/errno.h>
#include <linux/of.h>
+struct of_pci_range_parser {
+ struct device_node *node;
+ const __be32 *range;
+ const __be32 *end;
+ int np;
+ int pna;
+};
+
+struct of_pci_range {
+ u32 pci_space;
+ u64 pci_addr;
+ u64 cpu_addr;
+ u64 size;
+ u32 flags;
+};
+
+#define for_each_of_pci_range(parser, range) \
+ for (; of_pci_range_parser_one(parser, range);)
+
+static inline void of_pci_range_to_resource(struct of_pci_range *range,
+ struct device_node *np,
+ struct resource *res)
+{
+ res->flags = range->flags;
+ res->start = range->cpu_addr;
+ res->end = range->cpu_addr + range->size - 1;
+ res->parent = res->child = res->sibling = NULL;
+ res->name = np->full_name;
+}
+
#ifdef CONFIG_OF_ADDRESS
extern u64 of_translate_address(struct device_node *np, const __be32 *addr);
extern bool of_can_translate_address(struct device_node *dev);
@@ -27,6 +57,11 @@ static inline unsigned long pci_address_
#define pci_address_to_pio pci_address_to_pio
#endif
+extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
+ struct device_node *node);
+extern struct of_pci_range *of_pci_range_parser_one(
+ struct of_pci_range_parser *parser,
+ struct of_pci_range *range);
#else /* CONFIG_OF_ADDRESS */
#ifndef of_address_to_resource
static inline int of_address_to_resource(struct device_node *dev, int index,
@@ -53,6 +88,19 @@ static inline const __be32 *of_get_addre
{
return NULL;
}
+
+static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
+ struct device_node *node)
+{
+ return -1;
+}
+
+static inline struct of_pci_range *of_pci_range_parser_one(
+ struct of_pci_range_parser *parser,
+ struct of_pci_range *range)
+{
+ return NULL;
+}
#endif /* CONFIG_OF_ADDRESS */

54
target/linux/mvebu/patches-3.10/0006-of-pci-Add-of_pci_parse_bus_range-function.patch Normal file
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@ -0,0 +1,54 @@
From 3f368ae1994efc17b59ffd34307c76b1f642527e Mon Sep 17 00:00:00 2001
From: Thierry Reding <thierry.reding@avionic-design.de>
Date: Mon, 11 Feb 2013 09:22:20 +0100
Subject: [PATCH 006/203] of/pci: Add of_pci_parse_bus_range() function
This function can be used to parse a bus-range property as specified by
device nodes representing PCI bridges.
Signed-off-by: Thierry Reding <thierry.reding@avionic-design.de>
---
drivers/of/of_pci.c | 25 +++++++++++++++++++++++++
include/linux/of_pci.h | 1 +
2 files changed, 26 insertions(+)
--- a/drivers/of/of_pci.c
+++ b/drivers/of/of_pci.c
@@ -64,3 +64,28 @@ int of_pci_get_devfn(struct device_node
return (be32_to_cpup(reg) >> 8) & 0xff;
}
EXPORT_SYMBOL_GPL(of_pci_get_devfn);
+
+/**
+ * of_pci_parse_bus_range() - parse the bus-range property of a PCI device
+ * @node: device node
+ * @res: address to a struct resource to return the bus-range
+ *
+ * Returns 0 on success or a negative error-code on failure.
+ */
+int of_pci_parse_bus_range(struct device_node *node, struct resource *res)
+{
+ const __be32 *values;
+ int len;
+
+ values = of_get_property(node, "bus-range", &len);
+ if (!values || len < sizeof(*values) * 2)
+ return -EINVAL;
+
+ res->name = node->name;
+ res->start = be32_to_cpup(values++);
+ res->end = be32_to_cpup(values);
+ res->flags = IORESOURCE_BUS;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(of_pci_parse_bus_range);
--- a/include/linux/of_pci.h
+++ b/include/linux/of_pci.h
@@ -11,5 +11,6 @@ struct device_node;
struct device_node *of_pci_find_child_device(struct device_node *parent,
unsigned int devfn);
int of_pci_get_devfn(struct device_node *np);
+int of_pci_parse_bus_range(struct device_node *node, struct resource *res);
#endif

30
target/linux/mvebu/patches-3.10/0007-clk-mvebu-create-parent-child-relation-for-PCIe-cloc.patch Normal file
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@ -0,0 +1,30 @@
From f12aa05cbfb88e5541814ffa7be7e195471568bd Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 7 Dec 2012 20:35:20 +0100
Subject: [PATCH 007/203] clk: mvebu: create parent-child relation for PCIe
clocks on Armada 370
The Armada 370 has two gatable clocks for each PCIe interface, and we
want both of them to be enabled. We therefore make one of the two
clocks a child of the other, as we did for the sataX and sataXlnk
clocks on Armada XP.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Mike Turquette <mturquette@linaro.org>
---
drivers/clk/mvebu/clk-gating-ctrl.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
--- a/drivers/clk/mvebu/clk-gating-ctrl.c
+++ b/drivers/clk/mvebu/clk-gating-ctrl.c
@@ -119,8 +119,8 @@ static const struct mvebu_soc_descr __in
{ "pex1_en", NULL, 2 },
{ "ge1", NULL, 3 },
{ "ge0", NULL, 4 },
- { "pex0", NULL, 5 },
- { "pex1", NULL, 9 },
+ { "pex0", "pex0_en", 5 },
+ { "pex1", "pex1_en", 9 },
{ "sata0", NULL, 15 },
{ "sdio", NULL, 17 },
{ "tdm", NULL, 25 },

50
target/linux/mvebu/patches-3.10/0008-clk-mvebu-add-more-PCIe-clocks-for-Armada-XP.patch Normal file
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@ -0,0 +1,50 @@
From 5006da299ae65cadf92932f2f7b062b5a8c65798 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 18 Jan 2013 16:42:01 +0100
Subject: [PATCH 008/203] clk: mvebu: add more PCIe clocks for Armada XP
The current revision of the datasheet only mentions the gatable clocks
for the PCIe 0.0, 0.1, 0.2 and 0.3 interfaces, and forgot to mention
the ones for the PCIe 1.0, 1.1, 1.2, 1.3, 2.0 and 3.0
interfaces. After confirmation with Marvell engineers, this patch adds
the missing gatable clocks for those PCIe interfaces.
It also changes the name of the previously existing PCIe gatable
clocks, in order to match the naming using the datasheets.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Mike Turquette <mturquette@linaro.org>
---
drivers/clk/mvebu/clk-gating-ctrl.c | 14 ++++++++++----
1 file changed, 10 insertions(+), 4 deletions(-)
--- a/drivers/clk/mvebu/clk-gating-ctrl.c
+++ b/drivers/clk/mvebu/clk-gating-ctrl.c
@@ -137,10 +137,14 @@ static const struct mvebu_soc_descr __in
{ "ge2", NULL, 2 },
{ "ge1", NULL, 3 },
{ "ge0", NULL, 4 },
- { "pex0", NULL, 5 },
- { "pex1", NULL, 6 },
- { "pex2", NULL, 7 },
- { "pex3", NULL, 8 },
+ { "pex00", NULL, 5 },
+ { "pex01", NULL, 6 },
+ { "pex02", NULL, 7 },
+ { "pex03", NULL, 8 },
+ { "pex10", NULL, 9 },
+ { "pex11", NULL, 10 },
+ { "pex12", NULL, 11 },
+ { "pex13", NULL, 12 },
{ "bp", NULL, 13 },
{ "sata0lnk", NULL, 14 },
{ "sata0", "sata0lnk", 15 },
@@ -152,6 +156,8 @@ static const struct mvebu_soc_descr __in
{ "xor0", NULL, 22 },
{ "crypto", NULL, 23 },
{ "tdm", NULL, 25 },
+ { "pex20", NULL, 26 },
+ { "pex30", NULL, 27 },
{ "xor1", NULL, 28 },
{ "sata1lnk", NULL, 29 },
{ "sata1", "sata1lnk", 30 },

1177
target/linux/mvebu/patches-3.10/0009-pci-PCIe-driver-for-Marvell-Armada-370-XP-systems.patch Normal file
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25
target/linux/mvebu/patches-3.10/0010-arm-mvebu-PCIe-support-is-now-available-on-mvebu.patch Normal file
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@ -0,0 +1,25 @@
From 430d545623552ddc6b68785032cc9129d0a00b43 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 7 Dec 2012 20:56:52 +0100
Subject: [PATCH 010/203] arm: mvebu: PCIe support is now available on mvebu
Now that the PCIe driver for mvebu has been integrated and all its
relevant dependencies, we can mark the ARCH_MVEBU platform has
MIGHT_HAVE_PCI, which allows to select the PCI bus support if needed.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
arch/arm/mach-mvebu/Kconfig | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/arm/mach-mvebu/Kconfig
+++ b/arch/arm/mach-mvebu/Kconfig
@@ -16,6 +16,8 @@ config ARCH_MVEBU
select MVEBU_MBUS
select ZONE_DMA if ARM_LPAE
select ARCH_REQUIRE_GPIOLIB
+ select MIGHT_HAVE_PCI
+ select PCI_QUIRKS if PCI
if ARCH_MVEBU

36
target/linux/mvebu/patches-3.10/0011-arm-mvebu-update-defconfig-with-PCI-and-USB-support.patch Normal file
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@ -0,0 +1,36 @@
From c3da1bb20af37c09a07756d54420470788f131c7 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 7 Dec 2012 22:49:57 +0100
Subject: [PATCH 011/203] arm: mvebu: update defconfig with PCI and USB support
Now that we have the necessary drivers and Device Tree informations to
support PCIe on Armada 370 and Armada XP, enable the CONFIG_PCI
option.
Also, since the Armada 370 Mirabox has a built-in USB XHCI controller
connected on the PCIe bus, enable the corresponding options as well.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
---
arch/arm/configs/mvebu_defconfig | 3 +++
1 file changed, 3 insertions(+)
--- a/arch/arm/configs/mvebu_defconfig
+++ b/arch/arm/configs/mvebu_defconfig
@@ -13,6 +13,8 @@ CONFIG_MACH_ARMADA_370=y
CONFIG_MACH_ARMADA_XP=y
# CONFIG_CACHE_L2X0 is not set
# CONFIG_SWP_EMULATE is not set
+CONFIG_PCI=y
+CONFIG_PCI_MVEBU=y
CONFIG_SMP=y
CONFIG_AEABI=y
CONFIG_HIGHMEM=y
@@ -61,6 +63,7 @@ CONFIG_USB=y
CONFIG_USB_EHCI_HCD=y
CONFIG_USB_EHCI_ROOT_HUB_TT=y
CONFIG_USB_STORAGE=y
+CONFIG_USB_XHCI_HCD=y
CONFIG_MMC=y
CONFIG_MMC_MVSDIO=y
CONFIG_NEW_LEDS=y

40
target/linux/mvebu/patches-3.10/0012-arm-mvebu-mark-functions-of-armada-370-xp.c-as-stati.patch Normal file
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@ -0,0 +1,40 @@
From f865fd0e1c10bb044d56037eaa6ac4a4a122c62a Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue, 21 May 2013 12:33:28 +0200
Subject: [PATCH 012/203] arm: mvebu: mark functions of armada-370-xp.c as
static
All the functions in armada-370-xp.c are called from the
DT_MACHINE_START function pointers, so there is no need for them to be
visible outside of this file, and we therefore mark them as static.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/mach-mvebu/armada-370-xp.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/arm/mach-mvebu/armada-370-xp.c
+++ b/arch/arm/mach-mvebu/armada-370-xp.c
@@ -38,18 +38,18 @@ static struct map_desc armada_370_xp_io_
},
};
-void __init armada_370_xp_map_io(void)
+static void __init armada_370_xp_map_io(void)
{
iotable_init(armada_370_xp_io_desc, ARRAY_SIZE(armada_370_xp_io_desc));
}
-void __init armada_370_xp_timer_and_clk_init(void)
+static void __init armada_370_xp_timer_and_clk_init(void)
{
mvebu_clocks_init();
armada_370_xp_timer_init();
}
-void __init armada_370_xp_init_early(void)
+static void __init armada_370_xp_init_early(void)
{
char *mbus_soc_name;

568
target/linux/mvebu/patches-3.10/0013-drivers-memory-Introduce-Marvell-EBU-Device-Bus-driv.patch Normal file
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@ -0,0 +1,568 @@
From 8b417cc752ac4158dcfcf02beafce80b90fd827d Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 23 Apr 2013 16:21:26 -0300
Subject: [PATCH 013/203] drivers: memory: Introduce Marvell EBU Device Bus
driver
Marvell EBU SoCs such as Armada 370/XP, Orion5x (88f5xxx) and
Discovery (mv78xx0) supports a Device Bus controller to access several
kinds of memories and I/O devices (NOR, NAND, SRAM, FPGA).
This commit adds a driver to handle this controller. So far only
Armada 370, Armada XP and Discovery SoCs are supported.
The driver must be registered through a device tree node;
as explained in the binding document.
For each child node in the device tree, this driver will:
* set timing parameters
* register a child device
* setup an address decoding window, using the mbus driver
Keep in mind the address decoding window setup is only a temporary hack.
This code will be removed from this devbus driver as soon as a proper device
tree binding for the mbus driver is added.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
.../bindings/memory-controllers/mvebu-devbus.txt | 156 ++++++++++
drivers/memory/Kconfig | 10 +
drivers/memory/Makefile | 1 +
drivers/memory/mvebu-devbus.c | 340 +++++++++++++++++++++
4 files changed, 507 insertions(+)
create mode 100644 Documentation/devicetree/bindings/memory-controllers/mvebu-devbus.txt
create mode 100644 drivers/memory/mvebu-devbus.c
--- /dev/null
+++ b/Documentation/devicetree/bindings/memory-controllers/mvebu-devbus.txt
@@ -0,0 +1,156 @@
+Device tree bindings for MVEBU Device Bus controllers
+
+The Device Bus controller available in some Marvell's SoC allows to control
+different types of standard memory and I/O devices such as NOR, NAND, and FPGA.
+The actual devices are instantiated from the child nodes of a Device Bus node.
+
+Required properties:
+
+ - compatible: Currently only Armada 370/XP SoC are supported,
+ with this compatible string:
+
+ marvell,mvebu-devbus
+
+ - reg: A resource specifier for the register space.
+ This is the base address of a chip select within
+ the controller's register space.
+ (see the example below)
+
+ - #address-cells: Must be set to 1
+ - #size-cells: Must be set to 1
+ - ranges: Must be set up to reflect the memory layout with four
+ integer values for each chip-select line in use:
+ 0 <physical address of mapping> <size>
+
+Mandatory timing properties for child nodes:
+
+Read parameters:
+
+ - devbus,turn-off-ps: Defines the time during which the controller does not
+ drive the AD bus after the completion of a device read.
+ This prevents contentions on the Device Bus after a read
+ cycle from a slow device.
+
+ - devbus,bus-width: Defines the bus width (e.g. <16>)
+
+ - devbus,badr-skew-ps: Defines the time delay from from A[2:0] toggle,
+ to read data sample. This parameter is useful for
+ synchronous pipelined devices, where the address
+ precedes the read data by one or two cycles.
+
+ - devbus,acc-first-ps: Defines the time delay from the negation of
+ ALE[0] to the cycle that the first read data is sampled
+ by the controller.
+
+ - devbus,acc-next-ps: Defines the time delay between the cycle that
+ samples data N and the cycle that samples data N+1
+ (in burst accesses).
+
+ - devbus,rd-setup-ps: Defines the time delay between DEV_CSn assertion to
+ DEV_OEn assertion. If set to 0 (default),
+ DEV_OEn and DEV_CSn are asserted at the same cycle.
+ This parameter has no affect on <acc-first-ps> parameter
+ (no affect on first data sample). Set <rd-setup-ps>
+ to a value smaller than <acc-first-ps>.
+
+ - devbus,rd-hold-ps: Defines the time between the last data sample to the
+ de-assertion of DEV_CSn. If set to 0 (default),
+ DEV_OEn and DEV_CSn are de-asserted at the same cycle
+ (the cycle of the last data sample).
+ This parameter has no affect on DEV_OEn de-assertion.
+ DEV_OEn is always de-asserted the next cycle after
+ last data sampled. Also this parameter has no
+ affect on <turn-off-ps> parameter.
+ Set <rd-hold-ps> to a value smaller than <turn-off-ps>.
+
+Write parameters:
+
+ - devbus,ale-wr-ps: Defines the time delay from the ALE[0] negation cycle
+ to the DEV_WEn assertion.
+
+ - devbus,wr-low-ps: Defines the time during which DEV_WEn is active.
+ A[2:0] and Data are kept valid as long as DEV_WEn
+ is active. This parameter defines the setup time of
+ address and data to DEV_WEn rise.
+
+ - devbus,wr-high-ps: Defines the time during which DEV_WEn is kept
+ inactive (high) between data beats of a burst write.
+ DEV_A[2:0] and Data are kept valid (do not toggle) for
+ <wr-high-ps> - <tick> ps.
+ This parameter defines the hold time of address and
+ data after DEV_WEn rise.
+
+ - devbus,sync-enable: Synchronous device enable.
+ 1: True
+ 0: False
+
+An example for an Armada XP GP board, with a 16 MiB NOR device as child
+is showed below. Note that the Device Bus driver is in charge of allocating
+the mbus address decoding window for each of its child devices.
+The window is created using the chip select specified in the child
+device node together with the base address and size specified in the ranges
+property. For instance, in the example below the allocated decoding window
+will start at base address 0xf0000000, with a size 0x1000000 (16 MiB)
+for chip select 0 (a.k.a DEV_BOOTCS).
+
+This address window handling is done in this mvebu-devbus only as a temporary
+solution. It will be removed when the support for mbus device tree binding is
+added.
+
+The reg property implicitly specifies the chip select as this:
+
+ 0x10400: DEV_BOOTCS
+ 0x10408: DEV_CS0
+ 0x10410: DEV_CS1
+ 0x10418: DEV_CS2
+ 0x10420: DEV_CS3
+
+Example:
+
+ devbus-bootcs@d0010400 {
+ status = "okay";
+ ranges = <0 0xf0000000 0x1000000>; /* @addr 0xf0000000, size 0x1000000 */
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /* Device Bus parameters are required */
+
+ /* Read parameters */
+ devbus,bus-width = <8>;
+ devbus,turn-off-ps = <60000>;
+ devbus,badr-skew-ps = <0>;
+ devbus,acc-first-ps = <124000>;
+ devbus,acc-next-ps = <248000>;
+ devbus,rd-setup-ps = <0>;
+ devbus,rd-hold-ps = <0>;
+
+ /* Write parameters */
+ devbus,sync-enable = <0>;
+ devbus,wr-high-ps = <60000>;
+ devbus,wr-low-ps = <60000>;
+ devbus,ale-wr-ps = <60000>;
+
+ flash@0 {
+ compatible = "cfi-flash";
+
+ /* 16 MiB */
+ reg = <0 0x1000000>;
+ bank-width = <2>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ /*
+ * We split the 16 MiB in two partitions,
+ * just as an example.
+ */
+ partition@0 {
+ label = "First";
+ reg = <0 0x800000>;
+ };
+
+ partition@800000 {
+ label = "Second";
+ reg = <0x800000 0x800000>;
+ };
+ };
+ };
--- a/drivers/memory/Kconfig
+++ b/drivers/memory/Kconfig
@@ -20,6 +20,16 @@ config TI_EMIF
parameters and other settings during frequency, voltage and
temperature changes
+config MVEBU_DEVBUS
+ bool "Marvell EBU Device Bus Controller"
+ default y
+ depends on PLAT_ORION && OF
+ help
+ This driver is for the Device Bus controller available in some
+ Marvell EBU SoCs such as Discovery (mv78xx0), Orion (88f5xxx) and
+ Armada 370 and Armada XP. This controller allows to handle flash
+ devices such as NOR, NAND, SRAM, and FPGA.
+
config TEGRA20_MC
bool "Tegra20 Memory Controller(MC) driver"
default y
--- a/drivers/memory/Makefile
+++ b/drivers/memory/Makefile
@@ -6,5 +6,6 @@ ifeq ($(CONFIG_DDR),y)
obj-$(CONFIG_OF) += of_memory.o
endif
obj-$(CONFIG_TI_EMIF) += emif.o
+obj-$(CONFIG_MVEBU_DEVBUS) += mvebu-devbus.o
obj-$(CONFIG_TEGRA20_MC) += tegra20-mc.o
obj-$(CONFIG_TEGRA30_MC) += tegra30-mc.o
--- /dev/null
+++ b/drivers/memory/mvebu-devbus.c
@@ -0,0 +1,340 @@
+/*
+ * Marvell EBU SoC Device Bus Controller
+ * (memory controller for NOR/NAND/SRAM/FPGA devices)
+ *
+ * Copyright (C) 2013 Marvell
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/mbus.h>
+#include <linux/of_platform.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+
+/* Register definitions */
+#define DEV_WIDTH_BIT 30
+#define BADR_SKEW_BIT 28
+#define RD_HOLD_BIT 23
+#define ACC_NEXT_BIT 17
+#define RD_SETUP_BIT 12
+#define ACC_FIRST_BIT 6
+
+#define SYNC_ENABLE_BIT 24
+#define WR_HIGH_BIT 16
+#define WR_LOW_BIT 8
+
+#define READ_PARAM_OFFSET 0x0
+#define WRITE_PARAM_OFFSET 0x4
+
+static const char * const devbus_wins[] = {
+ "devbus-boot",
+ "devbus-cs0",
+ "devbus-cs1",
+ "devbus-cs2",
+ "devbus-cs3",
+};
+
+struct devbus_read_params {
+ u32 bus_width;
+ u32 badr_skew;
+ u32 turn_off;
+ u32 acc_first;
+ u32 acc_next;
+ u32 rd_setup;
+ u32 rd_hold;
+};
+
+struct devbus_write_params {
+ u32 sync_enable;
+ u32 wr_high;
+ u32 wr_low;
+ u32 ale_wr;
+};
+
+struct devbus {
+ struct device *dev;
+ void __iomem *base;
+ unsigned long tick_ps;
+};
+
+static int get_timing_param_ps(struct devbus *devbus,
+ struct device_node *node,
+ const char *name,
+ u32 *ticks)
+{
+ u32 time_ps;
+ int err;
+
+ err = of_property_read_u32(node, name, &time_ps);
+ if (err < 0) {
+ dev_err(devbus->dev, "%s has no '%s' property\n",
+ name, node->full_name);
+ return err;
+ }
+
+ *ticks = (time_ps + devbus->tick_ps - 1) / devbus->tick_ps;
+
+ dev_dbg(devbus->dev, "%s: %u ps -> 0x%x\n",
+ name, time_ps, *ticks);
+ return 0;
+}
+
+static int devbus_set_timing_params(struct devbus *devbus,
+ struct device_node *node)
+{
+ struct devbus_read_params r;
+ struct devbus_write_params w;
+ u32 value;
+ int err;
+
+ dev_dbg(devbus->dev, "Setting timing parameter, tick is %lu ps\n",
+ devbus->tick_ps);
+
+ /* Get read timings */
+ err = of_property_read_u32(node, "devbus,bus-width", &r.bus_width);
+ if (err < 0) {
+ dev_err(devbus->dev,
+ "%s has no 'devbus,bus-width' property\n",
+ node->full_name);
+ return err;
+ }
+ /* Convert bit width to byte width */
+ r.bus_width /= 8;
+
+ err = get_timing_param_ps(devbus, node, "devbus,badr-skew-ps",
+ &r.badr_skew);
+ if (err < 0)
+ return err;
+
+ err = get_timing_param_ps(devbus, node, "devbus,turn-off-ps",
+ &r.turn_off);
+ if (err < 0)
+ return err;
+
+ err = get_timing_param_ps(devbus, node, "devbus,acc-first-ps",
+ &r.acc_first);
+ if (err < 0)
+ return err;
+
+ err = get_timing_param_ps(devbus, node, "devbus,acc-next-ps",
+ &r.acc_next);
+ if (err < 0)
+ return err;
+
+ err = get_timing_param_ps(devbus, node, "devbus,rd-setup-ps",
+ &r.rd_setup);
+ if (err < 0)
+ return err;
+
+ err = get_timing_param_ps(devbus, node, "devbus,rd-hold-ps",
+ &r.rd_hold);
+ if (err < 0)
+ return err;
+
+ /* Get write timings */
+ err = of_property_read_u32(node, "devbus,sync-enable",
+ &w.sync_enable);
+ if (err < 0) {
+ dev_err(devbus->dev,
+ "%s has no 'devbus,sync-enable' property\n",
+ node->full_name);
+ return err;
+ }
+
+ err = get_timing_param_ps(devbus, node, "devbus,ale-wr-ps",
+ &w.ale_wr);
+ if (err < 0)
+ return err;
+
+ err = get_timing_param_ps(devbus, node, "devbus,wr-low-ps",
+ &w.wr_low);
+ if (err < 0)
+ return err;
+
+ err = get_timing_param_ps(devbus, node, "devbus,wr-high-ps",
+ &w.wr_high);
+ if (err < 0)
+ return err;
+
+ /* Set read timings */
+ value = r.bus_width << DEV_WIDTH_BIT |
+ r.badr_skew << BADR_SKEW_BIT |
+ r.rd_hold << RD_HOLD_BIT |
+ r.acc_next << ACC_NEXT_BIT |
+ r.rd_setup << RD_SETUP_BIT |
+ r.acc_first << ACC_FIRST_BIT |
+ r.turn_off;
+
+ dev_dbg(devbus->dev, "read parameters register 0x%p = 0x%x\n",
+ devbus->base + READ_PARAM_OFFSET,
+ value);
+
+ writel(value, devbus->base + READ_PARAM_OFFSET);
+
+ /* Set write timings */
+ value = w.sync_enable << SYNC_ENABLE_BIT |
+ w.wr_low << WR_LOW_BIT |
+ w.wr_high << WR_HIGH_BIT |
+ w.ale_wr;
+
+ dev_dbg(devbus->dev, "write parameters register: 0x%p = 0x%x\n",
+ devbus->base + WRITE_PARAM_OFFSET,
+ value);
+
+ writel(value, devbus->base + WRITE_PARAM_OFFSET);
+
+ return 0;
+}
+
+static int mvebu_devbus_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *node = pdev->dev.of_node;
+ struct device_node *parent;
+ struct devbus *devbus;
+ struct resource *res;
+ struct clk *clk;
+ unsigned long rate;
+ const __be32 *ranges;
+ int err, cs;
+ int addr_cells, p_addr_cells, size_cells;
+ int ranges_len, tuple_len;
+ u32 base, size;
+
+ devbus = devm_kzalloc(&pdev->dev, sizeof(struct devbus), GFP_KERNEL);
+ if (!devbus)
+ return -ENOMEM;
+
+ devbus->dev = dev;
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ devbus->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(devbus->base))
+ return PTR_ERR(devbus->base);
+
+ clk = devm_clk_get(&pdev->dev, NULL);
+ if (IS_ERR(clk))
+ return PTR_ERR(clk);
+ clk_prepare_enable(clk);
+
+ /*
+ * Obtain clock period in picoseconds,
+ * we need this in order to convert timing
+ * parameters from cycles to picoseconds.
+ */
+ rate = clk_get_rate(clk) / 1000;
+ devbus->tick_ps = 1000000000 / rate;
+
+ /* Read the device tree node and set the new timing parameters */
+ err = devbus_set_timing_params(devbus, node);
+ if (err < 0)
+ return err;
+
+ /*
+ * Allocate an address window for this device.
+ * If the device probing fails, then we won't be able to
+ * remove the allocated address decoding window.
+ *
+ * FIXME: This is only a temporary hack! We need to do this here
+ * because we still don't have device tree bindings for mbus.
+ * Once that support is added, we will declare these address windows
+ * statically in the device tree, and remove the window configuration
+ * from here.
+ */
+
+ /*
+ * Get the CS to choose the window string.
+ * This is a bit hacky, but it will be removed once the
+ * address windows are declared in the device tree.
+ */
+ cs = (((unsigned long)devbus->base) % 0x400) / 8;
+
+ /*
+ * Parse 'ranges' property to obtain a (base,size) window tuple.
+ * This will be removed once the address windows
+ * are declared in the device tree.
+ */
+ parent = of_get_parent(node);
+ if (!parent)
+ return -EINVAL;
+
+ p_addr_cells = of_n_addr_cells(parent);
+ of_node_put(parent);
+
+ addr_cells = of_n_addr_cells(node);
+ size_cells = of_n_size_cells(node);
+ tuple_len = (p_addr_cells + addr_cells + size_cells) * sizeof(__be32);
+
+ ranges = of_get_property(node, "ranges", &ranges_len);
+ if (ranges == NULL || ranges_len != tuple_len)
+ return -EINVAL;
+
+ base = of_translate_address(node, ranges + addr_cells);
+ if (base == OF_BAD_ADDR)
+ return -EINVAL;
+ size = of_read_number(ranges + addr_cells + p_addr_cells, size_cells);
+
+ /*
+ * Create an mbus address windows.
+ * FIXME: Remove this, together with the above code, once the
+ * address windows are declared in the device tree.
+ */
+ err = mvebu_mbus_add_window(devbus_wins[cs], base, size);
+ if (err < 0)
+ return err;
+
+ /*
+ * We need to create a child device explicitly from here to
+ * guarantee that the child will be probed after the timing
+ * parameters for the bus are written.
+ */
+ err = of_platform_populate(node, NULL, NULL, dev);
+ if (err < 0) {
+ mvebu_mbus_del_window(base, size);
+ return err;
+ }
+
+ return 0;
+}
+
+static const struct of_device_id mvebu_devbus_of_match[] = {
+ { .compatible = "marvell,mvebu-devbus" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, mvebu_devbus_of_match);
+
+static struct platform_driver mvebu_devbus_driver = {
+ .probe = mvebu_devbus_probe,
+ .driver = {
+ .name = "mvebu-devbus",
+ .owner = THIS_MODULE,
+ .of_match_table = mvebu_devbus_of_match,
+ },
+};
+
+static int __init mvebu_devbus_init(void)
+{
+ return platform_driver_register(&mvebu_devbus_driver);
+}
+module_init(mvebu_devbus_init);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Ezequiel Garcia <ezequiel.garcia@free-electrons.com>");
+MODULE_DESCRIPTION("Marvell EBU SoC Device Bus controller");

35
target/linux/mvebu/patches-3.10/0014-arm-mvebu-enable-two-USB-interfaces-on-the-Armada-XP.patch Normal file
View File

@ -0,0 +1,35 @@
From 348fc73a301b88ec3f2da8c1f02858c75e79455e Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue, 21 May 2013 19:53:09 +0200
Subject: [PATCH 014/203] arm: mvebu: enable two USB interfaces on the Armada
XP GP board
The Armada XP GP board has two USB slots: one on the front side and
one on the back side. This commit enables the two USB host controllers
that correspond to those wo USB slots.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/boot/dts/armada-xp-gp.dts | 10 ++++++++++
1 file changed, 10 insertions(+)
--- a/arch/arm/boot/dts/armada-xp-gp.dts
+++ b/arch/arm/boot/dts/armada-xp-gp.dts
@@ -105,6 +105,16 @@
phy-mode = "rgmii-id";
};
+ /* Front-side USB slot */
+ usb@50000 {
+ status = "okay";
+ };
+
+ /* Back-side USB slot */
+ usb@51000 {
+ status = "okay";
+ };
+
spi0: spi@10600 {
status = "okay";

97
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From 34361044442206dd7d10ff3309f8e0713e0fd856 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Thu, 23 May 2013 16:32:51 +0200
Subject: [PATCH 015/203] pci: mvebu: no longer fake the slot location of
downstream devices
By default, the Marvell hardware, for each PCIe interface, exhibits
the following devices:
* On slot 0, a "Marvell Memory controller", identical on all PCIe
interfaces, and which isn't useful when the Marvell SoC is the PCIe
root complex (i.e, the normal case when we run Linux on the Marvell
SoC).
* On slot 1, the real PCIe card connected into the PCIe slot of the
board.
So, what the Marvell PCIe driver was doing in its PCI-to-PCI bridge
emulation is that when the Linux PCI core was trying to access the
device in slot 0, we were in fact forwarding the configuration
transaction to the device in slot 1. For all other slots, we were
telling the Linux PCI core that there was no device connected.
However, new versions of bootloaders from Marvell change the default
PCIe configuration, and make the real device appear in slot 0, and the
"Marvell Memory controller" in slot 1.
Therefore, this commit modifies the Marvell PCIe driver to adjust the
PCIe hardware configuration to make sure that this behavior (real
device in slot 0, "Marvell Memory controller" in slot 1) is the one
we'll see regardless of what the bootloader has done. It allows to
remove the little hack that was forwarding configuration transactions
on slot 0 to slot 1, which is nice.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
drivers/pci/host/pci-mvebu.c | 19 +++++++++++++++----
1 file changed, 15 insertions(+), 4 deletions(-)
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -51,6 +51,7 @@
#define PCIE_CTRL_X1_MODE 0x0001
#define PCIE_STAT_OFF 0x1a04
#define PCIE_STAT_BUS 0xff00
+#define PCIE_STAT_DEV 0x1f0000
#define PCIE_STAT_LINK_DOWN BIT(0)
#define PCIE_DEBUG_CTRL 0x1a60
#define PCIE_DEBUG_SOFT_RESET BIT(20)
@@ -148,6 +149,16 @@ static void mvebu_pcie_set_local_bus_nr(
writel(stat, port->base + PCIE_STAT_OFF);
}
+static void mvebu_pcie_set_local_dev_nr(struct mvebu_pcie_port *port, int nr)
+{
+ u32 stat;
+
+ stat = readl(port->base + PCIE_STAT_OFF);
+ stat &= ~PCIE_STAT_DEV;
+ stat |= nr << 16;
+ writel(stat, port->base + PCIE_STAT_OFF);
+}
+
/*
* Setup PCIE BARs and Address Decode Wins:
* BAR[0,2] -> disabled, BAR[1] -> covers all DRAM banks
@@ -572,8 +583,7 @@ static int mvebu_pcie_wr_conf(struct pci
/* Access the real PCIe interface */
spin_lock_irqsave(&port->conf_lock, flags);
- ret = mvebu_pcie_hw_wr_conf(port, bus,
- PCI_DEVFN(1, PCI_FUNC(devfn)),
+ ret = mvebu_pcie_hw_wr_conf(port, bus, devfn,
where, size, val);
spin_unlock_irqrestore(&port->conf_lock, flags);
@@ -606,8 +616,7 @@ static int mvebu_pcie_rd_conf(struct pci
/* Access the real PCIe interface */
spin_lock_irqsave(&port->conf_lock, flags);
- ret = mvebu_pcie_hw_rd_conf(port, bus,
- PCI_DEVFN(1, PCI_FUNC(devfn)),
+ ret = mvebu_pcie_hw_rd_conf(port, bus, devfn,
where, size, val);
spin_unlock_irqrestore(&port->conf_lock, flags);
@@ -817,6 +826,8 @@ static int __init mvebu_pcie_probe(struc
continue;
}
+ mvebu_pcie_set_local_dev_nr(port, 1);
+
if (mvebu_pcie_link_up(port)) {
port->haslink = 1;
dev_info(&pdev->dev, "PCIe%d.%d: link up\n",

97
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@ -0,0 +1,97 @@
From 10f725e3a9e73aab2e5601206c88cf9cbc599243 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Thu, 23 May 2013 16:32:52 +0200
Subject: [PATCH 016/203] pci: mvebu: allow the enumeration of devices beyond
physical bridges
Until now, the Marvell PCIe driver was only allowing the enumeration
of the devices in the secondary bus of the emulated PCI-to-PCI
bridge. This works fine when a PCIe device is directly connected into
a PCIe slot of the Marvell board.
However, when the device connected in the PCIe slot is a physical PCIe
bridge, beyond which a real PCIe device is connected, it no longer
worked, as the driver was preventing the Linux PCI core from seeing
such devices.
This commit fixes that by ensuring that configuration transactions on
subordinate busses are properly forwarded on the right PCIe interface.
Thanks to this patch, a PCIe card beyond a PCIe bridge, itself beyond
the emulated PCI-to-PCI bridge is properly detected, with the
following layout:
-[0000:00]-+-01.0-[01]----00.0
+-09.0-[02-07]----00.0-[03-07]--+-01.0-[04]--
| +-05.0-[05]--
| +-07.0-[06]--
| \-09.0-[07]----00.0
\-0a.0-[08]----00.0
Where the PCIe interface that sits beyond the emulated PCI-to-PCI
bridge at 09.0 allows to access the secondary bus 02, on which there
is a PCIe bridge that allows to access the 3 to 7 busses, that are
subordinates to this bridge. And on one of this bus (bus 7), there is
one real PCIe device connected.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
drivers/pci/host/pci-mvebu.c | 31 ++++++++++++++++++++++++++++---
1 file changed, 28 insertions(+), 3 deletions(-)
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -554,7 +554,8 @@ mvebu_pcie_find_port(struct mvebu_pcie *
if (bus->number == 0 && port->devfn == devfn)
return port;
if (bus->number != 0 &&
- port->bridge.secondary_bus == bus->number)
+ bus->number >= port->bridge.secondary_bus &&
+ bus->number <= port->bridge.subordinate_bus)
return port;
}
@@ -578,7 +579,18 @@ static int mvebu_pcie_wr_conf(struct pci
if (bus->number == 0)
return mvebu_sw_pci_bridge_write(port, where, size, val);
- if (!port->haslink || PCI_SLOT(devfn) != 0)
+ if (!port->haslink)
+ return PCIBIOS_DEVICE_NOT_FOUND;
+
+ /*
+ * On the secondary bus, we don't want to expose any other
+ * device than the device physically connected in the PCIe
+ * slot, visible in slot 0. In slot 1, there's a special
+ * Marvell device that only makes sense when the Armada is
+ * used as a PCIe endpoint.
+ */
+ if (bus->number == port->bridge.secondary_bus &&
+ PCI_SLOT(devfn) != 0)
return PCIBIOS_DEVICE_NOT_FOUND;
/* Access the real PCIe interface */
@@ -609,7 +621,20 @@ static int mvebu_pcie_rd_conf(struct pci
if (bus->number == 0)
return mvebu_sw_pci_bridge_read(port, where, size, val);
- if (!port->haslink || PCI_SLOT(devfn) != 0) {
+ if (!port->haslink) {
+ *val = 0xffffffff;
+ return PCIBIOS_DEVICE_NOT_FOUND;
+ }
+
+ /*
+ * On the secondary bus, we don't want to expose any other
+ * device than the device physically connected in the PCIe
+ * slot, visible in slot 0. In slot 1, there's a special
+ * Marvell device that only makes sense when the Armada is
+ * used as a PCIe endpoint.
+ */
+ if (bus->number == port->bridge.secondary_bus &&
+ PCI_SLOT(devfn) != 0) {
*val = 0xffffffff;
return PCIBIOS_DEVICE_NOT_FOUND;
}

87
target/linux/mvebu/patches-3.10/0017-pci-mvebu-fix-the-emulation-of-the-status-register.patch Normal file
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@ -0,0 +1,87 @@
From 33e771556f5e1a59c7dbcd953ce858dd3e50ed66 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Thu, 23 May 2013 16:32:53 +0200
Subject: [PATCH 017/203] pci: mvebu: fix the emulation of the status register
The status register of the PCI configuration space of PCI-to-PCI
bridges contain some read-only bits, and so write-1-to-clear bits. So,
the Linux PCI core sometimes writes 0xffff to this status register,
and in the current PCI-to-PCI bridge emulation code of the Marvell
driver, we do take all those 1s being written. Even the read-only bits
are being overwritten.
For now, all the read-only bits should be emulated to have the zero
value.
The other bits, that are write-1-to-clear bits are used to report
various kind of errors, and are never set by the emulated bridge, so
there is no need to support this write-1-to-clear bits mechanism.
As a conclusion, the easiest solution is to simply emulate this status
register by returning zero when read, and ignore the writes to it.
This has two visible effects:
* The devsel is no longer 'unknown' in, i.e
Flags: bus master, 66MHz, user-definable features, ?? devsel, latency 0
becomes:
Flags: bus master, 66MHz, user-definable features, fast devsel, latency 0
in lspci -v.
This was caused by a value of 11b being read for devsel, which is
an invalid value. This 11b value being read was due to a previous
write of 0xffff into the status register.
* The capability list is no longer broken, because we indicate to the
Linux PCI core that we don't have a Capabilities Pointer in the PCI
configuration space of this bridge. The following message is
therefore no longer visible in lspci -v:
Capabilities: [fc] <chain broken>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
drivers/pci/host/pci-mvebu.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -69,7 +69,6 @@ struct mvebu_sw_pci_bridge {
u16 vendor;
u16 device;
u16 command;
- u16 status;
u16 class;
u8 interface;
u8 revision;
@@ -359,7 +358,6 @@ static void mvebu_sw_pci_bridge_init(str
memset(bridge, 0, sizeof(struct mvebu_sw_pci_bridge));
- bridge->status = PCI_STATUS_CAP_LIST;
bridge->class = PCI_CLASS_BRIDGE_PCI;
bridge->vendor = PCI_VENDOR_ID_MARVELL;
bridge->device = MARVELL_EMULATED_PCI_PCI_BRIDGE_ID;
@@ -386,7 +384,7 @@ static int mvebu_sw_pci_bridge_read(stru
break;
case PCI_COMMAND:
- *value = bridge->status << 16 | bridge->command;
+ *value = bridge->command;
break;
case PCI_CLASS_REVISION:
@@ -479,7 +477,6 @@ static int mvebu_sw_pci_bridge_write(str
switch (where & ~3) {
case PCI_COMMAND:
bridge->command = value & 0xffff;
- bridge->status = value >> 16;
break;
case PCI_BASE_ADDRESS_0 ... PCI_BASE_ADDRESS_1:

30
target/linux/mvebu/patches-3.10/0018-arm-mvebu-fix-length-of-SATA-registers-area-in-.dtsi.patch Normal file
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@ -0,0 +1,30 @@
From fc7dfe5cd096f5b5343f01f679a96ebc23e9da67 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue, 21 May 2013 12:33:26 +0200
Subject: [PATCH 018/203] arm: mvebu: fix length of SATA registers area in
.dtsi
The length of the registers area for the Marvell 370/XP SATA
controller was incorrect in the .dtsi: 0x2400 while it should have
been 0x5000. Until now, this problem wasn't noticed because there was
a large static mapping for all I/Os set up by ->map_io(). But since
we're going to get rid of this static mapping, we need to ensure that
the register areas are properly sized.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/boot/dts/armada-370-xp.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -80,7 +80,7 @@
sata@a0000 {
compatible = "marvell,orion-sata";
- reg = <0xa0000 0x2400>;
+ reg = <0xa0000 0x5000>;
interrupts = <55>;
clocks = <&gateclk 15>, <&gateclk 30>;
clock-names = "0", "1";

63
target/linux/mvebu/patches-3.10/0019-arm-mvebu-fix-length-of-Ethernet-registers-area-in-..patch Normal file
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@ -0,0 +1,63 @@
From d887da014c3fabf5fa4da47b143edc069e72fd62 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue, 21 May 2013 12:33:27 +0200
Subject: [PATCH 019/203] arm: mvebu: fix length of Ethernet registers area in
.dtsi
The length of the registers area for the Marvell 370/XP Ethernet
controller was incorrect in the .dtsi: 0x2400 while it should have
been 0x4000. Until now, this problem wasn't noticed because there was
a large static mapping for all I/Os set up by ->map_io(). But since
we're going to get rid of this static mapping, we need to ensure that
the register areas are properly sized.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/boot/dts/armada-370-xp.dtsi | 4 ++--
arch/arm/boot/dts/armada-xp-mv78460.dtsi | 2 +-
arch/arm/boot/dts/armada-xp.dtsi | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)
--- a/arch/arm/boot/dts/armada-370-xp.dtsi
+++ b/arch/arm/boot/dts/armada-370-xp.dtsi
@@ -96,7 +96,7 @@
ethernet@70000 {
compatible = "marvell,armada-370-neta";
- reg = <0x70000 0x2500>;
+ reg = <0x70000 0x4000>;
interrupts = <8>;
clocks = <&gateclk 4>;
status = "disabled";
@@ -104,7 +104,7 @@
ethernet@74000 {
compatible = "marvell,armada-370-neta";
- reg = <0x74000 0x2500>;
+ reg = <0x74000 0x4000>;
interrupts = <10>;
clocks = <&gateclk 3>;
status = "disabled";
--- a/arch/arm/boot/dts/armada-xp-mv78460.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78460.dtsi
@@ -107,7 +107,7 @@
ethernet@34000 {
compatible = "marvell,armada-370-neta";
- reg = <0x34000 0x2500>;
+ reg = <0x34000 0x4000>;
interrupts = <14>;
clocks = <&gateclk 1>;
status = "disabled";
--- a/arch/arm/boot/dts/armada-xp.dtsi
+++ b/arch/arm/boot/dts/armada-xp.dtsi
@@ -88,7 +88,7 @@
ethernet@30000 {
compatible = "marvell,armada-370-neta";
- reg = <0x30000 0x2500>;
+ reg = <0x30000 0x4000>;
interrupts = <12>;
clocks = <&gateclk 2>;
status = "disabled";

112
target/linux/mvebu/patches-3.10/0020-net-mvneta-read-MAC-address-from-hardware-when-avail.patch Normal file
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@ -0,0 +1,112 @@
From 25d3318a445c4f4360f86bf6d1d1a320d9646bb5 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue, 4 Jun 2013 04:52:23 +0000
Subject: [PATCH 020/203] net: mvneta: read MAC address from hardware when
available
This patch improves the logic used by the mvneta driver to find a MAC
address for a particular interface. Until now, it was only looking at
the Device Tree, and if no address was found, was falling back to
generating a random MAC address.
This patch adds the intermediate solution of reading the MAC address
from the hardware registers, in case it has been set by the
bootloader. So the order is now:
1) MAC address from the Device Tree
2) MAC address from the hardware registers
3) Random MAC address
This requires moving the MAC address initialization a little bit later
in the ->probe() code, because it now requires the hardware registers
to be remapped.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/ethernet/marvell/mvneta.c | 44 ++++++++++++++++++++++++++++-------
1 file changed, 35 insertions(+), 9 deletions(-)
--- a/drivers/net/ethernet/marvell/mvneta.c
+++ b/drivers/net/ethernet/marvell/mvneta.c
@@ -2260,6 +2260,21 @@ static int mvneta_change_mtu(struct net_
return 0;
}
+/* Get mac address */
+static void mvneta_get_mac_addr(struct mvneta_port *pp, unsigned char *addr)
+{
+ u32 mac_addr_l, mac_addr_h;
+
+ mac_addr_l = mvreg_read(pp, MVNETA_MAC_ADDR_LOW);
+ mac_addr_h = mvreg_read(pp, MVNETA_MAC_ADDR_HIGH);
+ addr[0] = (mac_addr_h >> 24) & 0xFF;
+ addr[1] = (mac_addr_h >> 16) & 0xFF;
+ addr[2] = (mac_addr_h >> 8) & 0xFF;
+ addr[3] = mac_addr_h & 0xFF;
+ addr[4] = (mac_addr_l >> 8) & 0xFF;
+ addr[5] = mac_addr_l & 0xFF;
+}
+
/* Handle setting mac address */
static int mvneta_set_mac_addr(struct net_device *dev, void *addr)
{
@@ -2678,7 +2693,9 @@ static int mvneta_probe(struct platform_
u32 phy_addr;
struct mvneta_port *pp;
struct net_device *dev;
- const char *mac_addr;
+ const char *dt_mac_addr;
+ char hw_mac_addr[ETH_ALEN];
+ const char *mac_from;
int phy_mode;
int err;
@@ -2714,13 +2731,6 @@ static int mvneta_probe(struct platform_
goto err_free_irq;
}
- mac_addr = of_get_mac_address(dn);
-
- if (!mac_addr || !is_valid_ether_addr(mac_addr))
- eth_hw_addr_random(dev);
- else
- memcpy(dev->dev_addr, mac_addr, ETH_ALEN);
-
dev->tx_queue_len = MVNETA_MAX_TXD;
dev->watchdog_timeo = 5 * HZ;
dev->netdev_ops = &mvneta_netdev_ops;
@@ -2751,6 +2761,21 @@ static int mvneta_probe(struct platform_
clk_prepare_enable(pp->clk);
+ dt_mac_addr = of_get_mac_address(dn);
+ if (dt_mac_addr && is_valid_ether_addr(dt_mac_addr)) {
+ mac_from = "device tree";
+ memcpy(dev->dev_addr, dt_mac_addr, ETH_ALEN);
+ } else {
+ mvneta_get_mac_addr(pp, hw_mac_addr);
+ if (is_valid_ether_addr(hw_mac_addr)) {
+ mac_from = "hardware";
+ memcpy(dev->dev_addr, hw_mac_addr, ETH_ALEN);
+ } else {
+ mac_from = "random";
+ eth_hw_addr_random(dev);
+ }
+ }
+
pp->tx_done_timer.data = (unsigned long)dev;
pp->tx_ring_size = MVNETA_MAX_TXD;
@@ -2783,7 +2808,8 @@ static int mvneta_probe(struct platform_
goto err_deinit;
}
- netdev_info(dev, "mac: %pM\n", dev->dev_addr);
+ netdev_info(dev, "Using %s mac address %pM\n", mac_from,
+ dev->dev_addr);
platform_set_drvdata(pdev, pp->dev);

31
target/linux/mvebu/patches-3.10/0021-arm-mvebu-armada-xp-db-ensure-PCIe-range-is-specifie.patch Normal file
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@ -0,0 +1,31 @@
From 67373874e07eb8c54ab27f8fe9998690e50b1e91 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Thu, 6 Jun 2013 11:21:23 +0200
Subject: [PATCH 021/203] arm: mvebu: armada-xp-db: ensure PCIe range is
specified
The ranges DT entry needed by the PCIe controller is defined at the
SoC .dtsi level. However, some boards have a NOR flash, and to support
it, they need to override the SoC-level ranges property to add an
additional range. Since PCIe and NOR support came separately, some
boards were not properly changed to include the PCIe range in their
ranges property at the .dts level.
This commit fixes those platforms.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/boot/dts/armada-xp-db.dts | 1 +
1 file changed, 1 insertion(+)
--- a/arch/arm/boot/dts/armada-xp-db.dts
+++ b/arch/arm/boot/dts/armada-xp-db.dts
@@ -31,6 +31,7 @@
soc {
ranges = <0 0 0xd0000000 0x100000 /* Internal registers 1MiB */
+ 0xe0000000 0 0xe0000000 0x8100000 /* PCIe */
0xf0000000 0 0xf0000000 0x1000000>; /* Device Bus, NOR 16MiB */
internal-regs {

54
target/linux/mvebu/patches-3.10/0022-bus-mvebu-mbus-Use-pr_fmt.patch Normal file
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@ -0,0 +1,54 @@
From 35e8d985e056f583290406258e3f17789bd05bce Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Fri, 7 Jun 2013 13:47:38 -0300
Subject: [PATCH 022/203] bus: mvebu-mbus: Use pr_fmt
In order to clean message printing, we replace pr_info with pr_fmt.
This is purely cosmetic change, with the sole purpose of making
the code a bit more readable.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
drivers/bus/mvebu-mbus.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -49,6 +49,8 @@
* configuration (file 'devices').
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>
@@ -762,7 +764,7 @@ int mvebu_mbus_add_window_remap_flags(co
break;
if (!s->soc->map[i].name) {
- pr_err("mvebu-mbus: unknown device '%s'\n", devname);
+ pr_err("unknown device '%s'\n", devname);
return -ENODEV;
}
@@ -775,7 +777,7 @@ int mvebu_mbus_add_window_remap_flags(co
attr |= 0x28;
if (!mvebu_mbus_window_conflicts(s, base, size, target, attr)) {
- pr_err("mvebu-mbus: cannot add window '%s', conflicts with another window\n",
+ pr_err("cannot add window '%s', conflicts with another window\n",
devname);
return -EINVAL;
}
@@ -842,7 +844,7 @@ int __init mvebu_mbus_init(const char *s
break;
if (!of_id->compatible) {
- pr_err("mvebu-mbus: could not find a matching SoC family\n");
+ pr_err("could not find a matching SoC family\n");
return -ENODEV;
}

28
target/linux/mvebu/patches-3.10/0023-ARM-mvebu-Remove-device-tree-unused-properties-on-A3.patch Normal file
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@ -0,0 +1,28 @@
From df8ceea297967c3452a514bbde715acebf3bda29 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Fri, 7 Jun 2013 13:47:49 -0300
Subject: [PATCH 023/203] ARM: mvebu: Remove device tree unused properties on
A370
These properties are not needed so it's safe to remove them.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/boot/dts/armada-370.dtsi | 4 ----
1 file changed, 4 deletions(-)
--- a/arch/arm/boot/dts/armada-370.dtsi
+++ b/arch/arm/boot/dts/armada-370.dtsi
@@ -180,10 +180,6 @@
bus-range = <0x00 0xff>;
- reg = <0x40000 0x2000>, <0x80000 0x2000>;
-
- reg-names = "pcie0.0", "pcie1.0";
-
ranges = <0x82000000 0 0x40000 0x40000 0 0x00002000 /* Port 0.0 registers */
0x82000000 0 0x80000 0x80000 0 0x00002000 /* Port 1.0 registers */
0x82000000 0 0xe0000000 0xe0000000 0 0x08000000 /* non-prefetchable memory */

99
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@ -0,0 +1,99 @@
From 9398729313b826469fede3acda5fedd1eb21cb3e Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 5 Jun 2013 09:04:54 +0200
Subject: [PATCH 024/203] arm: mvebu: remove dependency of SMP init on static
I/O mapping
The ->smp_init_cpus() function is called very early during boot, at a
point where dynamic I/O mappings are not yet possible. However, in the
Armada 370/XP implementation of this function, we have to get the
number of CPUs. We used to do that by accessing a hardware register,
which requires relying on a static I/O mapping set up by
->map_io(). Not only this requires hardcoding a virtual address, but
it also prevents us from removing the static I/O mapping.
So this commit changes the way used to get the number of CPUs: we now
use the Device Tree, which is a representation of the hardware, and
provides us the number of available CPUs. This is also more accurate,
because it potentially allows to boot the Linux kernel on only a
number of CPUs given by the Device Tree, instead of unconditionally on
all CPUs.
As a consequence, the coherency_get_cpu_count() function becomes no
longer used, so we remove it.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/mach-mvebu/coherency.c | 12 ------------
arch/arm/mach-mvebu/coherency.h | 4 ----
arch/arm/mach-mvebu/common.h | 2 ++
arch/arm/mach-mvebu/platsmp.c | 10 +++++++++-
4 files changed, 11 insertions(+), 17 deletions(-)
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -47,18 +47,6 @@ static struct of_device_id of_coherency_
{ /* end of list */ },
};
-#ifdef CONFIG_SMP
-int coherency_get_cpu_count(void)
-{
- int reg, cnt;
-
- reg = readl(coherency_base + COHERENCY_FABRIC_CFG_OFFSET);
- cnt = (reg & 0xF) + 1;
-
- return cnt;
-}
-#endif
-
/* Function defined in coherency_ll.S */
int ll_set_cpu_coherent(void __iomem *base_addr, unsigned int hw_cpu_id);
--- a/arch/arm/mach-mvebu/coherency.h
+++ b/arch/arm/mach-mvebu/coherency.h
@@ -14,10 +14,6 @@
#ifndef __MACH_370_XP_COHERENCY_H
#define __MACH_370_XP_COHERENCY_H
-#ifdef CONFIG_SMP
-int coherency_get_cpu_count(void);
-#endif
-
int set_cpu_coherent(int cpu_id, int smp_group_id);
int coherency_init(void);
--- a/arch/arm/mach-mvebu/common.h
+++ b/arch/arm/mach-mvebu/common.h
@@ -15,6 +15,8 @@
#ifndef __ARCH_MVEBU_COMMON_H
#define __ARCH_MVEBU_COMMON_H
+#define ARMADA_XP_MAX_CPUS 4
+
void mvebu_restart(char mode, const char *cmd);
void armada_370_xp_init_irq(void);
--- a/arch/arm/mach-mvebu/platsmp.c
+++ b/arch/arm/mach-mvebu/platsmp.c
@@ -88,8 +88,16 @@ static int __cpuinit armada_xp_boot_seco
static void __init armada_xp_smp_init_cpus(void)
{
+ struct device_node *np;
unsigned int i, ncores;
- ncores = coherency_get_cpu_count();
+
+ np = of_find_node_by_name(NULL, "cpus");
+ if (!np)
+ panic("No 'cpus' node found\n");
+
+ ncores = of_get_child_count(np);
+ if (ncores == 0 || ncores > ARMADA_XP_MAX_CPUS)
+ panic("Invalid number of CPUs in DT\n");
/* Limit possible CPUs to defconfig */
if (ncores > nr_cpu_ids) {

81
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@ -0,0 +1,81 @@
From a4dd628f515f361cecfae08e568891442042e4e2 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 5 Jun 2013 09:04:55 +0200
Subject: [PATCH 025/203] arm: mvebu: avoid hardcoded virtual address in
coherency code
Now that the coherency_get_cpu_count() function no longer requires a
very early mapping of the coherency unit registers, we can avoid the
hardcoded virtual address in coherency.c. However, the coherency
features are still used quite early, so we need to do the of_iomap()
early enough, at the ->init_timer() level, so we have the call of
coherency_init() at this point.
Unfortunately, at ->init_timer() time, it is not possible to register
a bus notifier, so we add a separate coherency_late_init() function
that gets called as as postcore_initcall(), when bus notifiers are
available.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/mach-mvebu/armada-370-xp.c | 2 +-
arch/arm/mach-mvebu/coherency.c | 20 ++++++++++----------
2 files changed, 11 insertions(+), 11 deletions(-)
--- a/arch/arm/mach-mvebu/armada-370-xp.c
+++ b/arch/arm/mach-mvebu/armada-370-xp.c
@@ -47,6 +47,7 @@ static void __init armada_370_xp_timer_a
{
mvebu_clocks_init();
armada_370_xp_timer_init();
+ coherency_init();
}
static void __init armada_370_xp_init_early(void)
@@ -76,7 +77,6 @@ static void __init armada_370_xp_init_ea
static void __init armada_370_xp_dt_init(void)
{
of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
- coherency_init();
}
static const char * const armada_370_xp_dt_compat[] = {
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -27,14 +27,7 @@
#include <asm/smp_plat.h>
#include "armada-370-xp.h"
-/*
- * Some functions in this file are called very early during SMP
- * initialization. At that time the device tree framework is not yet
- * ready, and it is not possible to get the register address to
- * ioremap it. That's why the pointer below is given with an initial
- * value matching its virtual mapping
- */
-static void __iomem *coherency_base = ARMADA_370_XP_REGS_VIRT_BASE + 0x20200;
+static void __iomem *coherency_base;
static void __iomem *coherency_cpu_base;
/* Coherency fabric registers */
@@ -135,9 +128,16 @@ int __init coherency_init(void)
coherency_base = of_iomap(np, 0);
coherency_cpu_base = of_iomap(np, 1);
set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0);
- bus_register_notifier(&platform_bus_type,
- &mvebu_hwcc_platform_nb);
}
return 0;
}
+
+static int __init coherency_late_init(void)
+{
+ bus_register_notifier(&platform_bus_type,
+ &mvebu_hwcc_platform_nb);
+ return 0;
+}
+
+postcore_initcall(coherency_late_init);

54
target/linux/mvebu/patches-3.10/0026-arm-mvebu-move-cache-and-mvebu-mbus-initialization-l.patch Normal file
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@ -0,0 +1,54 @@
From c7c7e6309ae12f2cb0d9053875876b57bb7587e4 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 5 Jun 2013 09:04:56 +0200
Subject: [PATCH 026/203] arm: mvebu: move cache and mvebu-mbus initialization
later
Current, the L2 cache and the mvebu-mbus drivers are initialized at
->init_early() time. However, at ->init_early() time, ioremap() only
works if a static I/O mapping has already been put in place. If it's
not the case, it tries to do a memory allocation with kmalloc() which
is not possible so early at this stage of the initialization.
Since we want to get rid of the static I/O mapping, we cannot
initialize the L2 cache driver and the mvebu-mbus driver so early. So,
we move their initialization to the ->init_time() level, which is
slightly later (so ioremap() works properly), but sufficiently early
to be before the call of the ->smp_prepare_cpus() hook, which creates
an address decoding window for the BootROM, which requires the
mvebu-mbus driver to be properly initialized.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/mach-mvebu/armada-370-xp.c | 8 ++------
1 file changed, 2 insertions(+), 6 deletions(-)
--- a/arch/arm/mach-mvebu/armada-370-xp.c
+++ b/arch/arm/mach-mvebu/armada-370-xp.c
@@ -45,14 +45,11 @@ static void __init armada_370_xp_map_io(
static void __init armada_370_xp_timer_and_clk_init(void)
{
+ char *mbus_soc_name;
+
mvebu_clocks_init();
armada_370_xp_timer_init();
coherency_init();
-}
-
-static void __init armada_370_xp_init_early(void)
-{
- char *mbus_soc_name;
/*
* This initialization will be replaced by a DT-based
@@ -88,7 +85,6 @@ DT_MACHINE_START(ARMADA_XP_DT, "Marvell
.smp = smp_ops(armada_xp_smp_ops),
.init_machine = armada_370_xp_dt_init,
.map_io = armada_370_xp_map_io,
- .init_early = armada_370_xp_init_early,
.init_irq = irqchip_init,
.init_time = armada_370_xp_timer_and_clk_init,
.restart = mvebu_restart,

52
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@ -0,0 +1,52 @@
From fe4fce3c521f5d9f3a64c4d06a73a5e6b7324116 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 5 Jun 2013 09:04:57 +0200
Subject: [PATCH 027/203] arm: mvebu: remove hardcoded static I/O mapping
Now that we have removed the need of the static I/O mapping for early
initialization reasons, and fixed the registers area length that were
broken, we can get rid of the static I/O mapping. Only the earlyprintk
mapping needs to be set up, using the debug_ll_io_init() helper
function.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/mach-mvebu/armada-370-xp.c | 11 +----------
arch/arm/mach-mvebu/armada-370-xp.h | 2 --
2 files changed, 1 insertion(+), 12 deletions(-)
--- a/arch/arm/mach-mvebu/armada-370-xp.c
+++ b/arch/arm/mach-mvebu/armada-370-xp.c
@@ -29,18 +29,9 @@
#include "common.h"
#include "coherency.h"
-static struct map_desc armada_370_xp_io_desc[] __initdata = {
- {
- .virtual = (unsigned long) ARMADA_370_XP_REGS_VIRT_BASE,
- .pfn = __phys_to_pfn(ARMADA_370_XP_REGS_PHYS_BASE),
- .length = ARMADA_370_XP_REGS_SIZE,
- .type = MT_DEVICE,
- },
-};
-
static void __init armada_370_xp_map_io(void)
{
- iotable_init(armada_370_xp_io_desc, ARRAY_SIZE(armada_370_xp_io_desc));
+ debug_ll_io_init();
}
static void __init armada_370_xp_timer_and_clk_init(void)
--- a/arch/arm/mach-mvebu/armada-370-xp.h
+++ b/arch/arm/mach-mvebu/armada-370-xp.h
@@ -16,8 +16,6 @@
#define __MACH_ARMADA_370_XP_H
#define ARMADA_370_XP_REGS_PHYS_BASE 0xd0000000
-#define ARMADA_370_XP_REGS_VIRT_BASE IOMEM(0xfec00000)
-#define ARMADA_370_XP_REGS_SIZE SZ_1M
/* These defines can go away once mvebu-mbus has a DT binding */
#define ARMADA_370_XP_MBUS_WINS_BASE (ARMADA_370_XP_REGS_PHYS_BASE + 0x20000)

91
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@ -0,0 +1,91 @@
From 88260610ea7a2c5a164721af28f59856880221b4 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Thu, 6 Jun 2013 12:24:28 +0200
Subject: [PATCH 028/203] arm: mvebu: don't hardcode a physical address in
headsmp.S
Now that the coherency_init() function is called a bit earlier, we can
actually read the physical address of the coherency unit registers
from the Device Tree, and communicate that to the headsmp.S code,
which avoids hardcoding a physical address.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/mach-mvebu/coherency.c | 12 ++++++++++++
arch/arm/mach-mvebu/headsmp.S | 16 ++++++++--------
2 files changed, 20 insertions(+), 8 deletions(-)
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -25,8 +25,10 @@
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <asm/smp_plat.h>
+#include <asm/cacheflush.h>
#include "armada-370-xp.h"
+unsigned long __cpuinitdata coherency_phys_base;
static void __iomem *coherency_base;
static void __iomem *coherency_cpu_base;
@@ -124,7 +126,17 @@ int __init coherency_init(void)
np = of_find_matching_node(NULL, of_coherency_table);
if (np) {
+ struct resource res;
pr_info("Initializing Coherency fabric\n");
+ of_address_to_resource(np, 0, &res);
+ coherency_phys_base = res.start;
+ /*
+ * Ensure secondary CPUs will see the updated value,
+ * which they read before they join the coherency
+ * fabric, and therefore before they are coherent with
+ * the boot CPU cache.
+ */
+ sync_cache_w(&coherency_phys_base);
coherency_base = of_iomap(np, 0);
coherency_cpu_base = of_iomap(np, 1);
set_cpu_coherent(cpu_logical_map(smp_processor_id()), 0);
--- a/arch/arm/mach-mvebu/headsmp.S
+++ b/arch/arm/mach-mvebu/headsmp.S
@@ -21,12 +21,6 @@
#include <linux/linkage.h>
#include <linux/init.h>
-/*
- * At this stage the secondary CPUs don't have acces yet to the MMU, so
- * we have to provide physical addresses
- */
-#define ARMADA_XP_CFB_BASE 0xD0020200
-
__CPUINIT
/*
@@ -35,15 +29,21 @@
* startup
*/
ENTRY(armada_xp_secondary_startup)
+ /* Get coherency fabric base physical address */
+ adr r0, 1f
+ ldr r1, [r0]
+ ldr r0, [r0, r1]
/* Read CPU id */
mrc p15, 0, r1, c0, c0, 5
and r1, r1, #0xF
/* Add CPU to coherency fabric */
- ldr r0, =ARMADA_XP_CFB_BASE
-
bl ll_set_cpu_coherent
b secondary_startup
ENDPROC(armada_xp_secondary_startup)
+
+ .align 2
+1:
+ .long coherency_phys_base - .

109
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@ -0,0 +1,109 @@
From 070469397154c87b14fab48d2fc231ba83007c1b Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 5 Jun 2013 09:04:59 +0200
Subject: [PATCH 029/203] arm: mvebu: don't hardcode the physical address for
mvebu-mbus
Since the mvebu-mbus driver doesn't yet have a DT binding (and this DT
binding may not necessarily be ready for 3.11), the physical address
of the mvebu-mbus registers are currently hardcoded. This doesn't play
well with the fact that the internal registers base address may be
different depending on the bootloader.
In order to have only one central place for the physical address of
the internal registers, we now use of_translate_address() to translate
the mvebu-mbus register offsets into the real physical address, by
using DT-based address translation. This will go away once the
mvebu-mbus driver gains a proper DT binding.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/mach-mvebu/armada-370-xp.c | 38 ++++++++++++++++++++++++++-----------
arch/arm/mach-mvebu/armada-370-xp.h | 8 --------
2 files changed, 27 insertions(+), 19 deletions(-)
--- a/arch/arm/mach-mvebu/armada-370-xp.c
+++ b/arch/arm/mach-mvebu/armada-370-xp.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/of_address.h>
#include <linux/of_platform.h>
#include <linux/io.h>
#include <linux/time-armada-370-xp.h>
@@ -34,29 +35,44 @@ static void __init armada_370_xp_map_io(
debug_ll_io_init();
}
-static void __init armada_370_xp_timer_and_clk_init(void)
+/*
+ * This initialization will be replaced by a DT-based
+ * initialization once the mvebu-mbus driver gains DT support.
+ */
+
+#define ARMADA_370_XP_MBUS_WINS_OFFS 0x20000
+#define ARMADA_370_XP_MBUS_WINS_SIZE 0x100
+#define ARMADA_370_XP_SDRAM_WINS_OFFS 0x20180
+#define ARMADA_370_XP_SDRAM_WINS_SIZE 0x20
+
+static void __init armada_370_xp_mbus_init(void)
{
char *mbus_soc_name;
+ struct device_node *dn;
+ const __be32 mbus_wins_offs = cpu_to_be32(ARMADA_370_XP_MBUS_WINS_OFFS);
+ const __be32 sdram_wins_offs = cpu_to_be32(ARMADA_370_XP_SDRAM_WINS_OFFS);
- mvebu_clocks_init();
- armada_370_xp_timer_init();
- coherency_init();
-
- /*
- * This initialization will be replaced by a DT-based
- * initialization once the mvebu-mbus driver gains DT support.
- */
if (of_machine_is_compatible("marvell,armada370"))
mbus_soc_name = "marvell,armada370-mbus";
else
mbus_soc_name = "marvell,armadaxp-mbus";
+ dn = of_find_node_by_name(NULL, "internal-regs");
+ BUG_ON(!dn);
+
mvebu_mbus_init(mbus_soc_name,
- ARMADA_370_XP_MBUS_WINS_BASE,
+ of_translate_address(dn, &mbus_wins_offs),
ARMADA_370_XP_MBUS_WINS_SIZE,
- ARMADA_370_XP_SDRAM_WINS_BASE,
+ of_translate_address(dn, &sdram_wins_offs),
ARMADA_370_XP_SDRAM_WINS_SIZE);
+}
+static void __init armada_370_xp_timer_and_clk_init(void)
+{
+ mvebu_clocks_init();
+ armada_370_xp_timer_init();
+ coherency_init();
+ armada_370_xp_mbus_init();
#ifdef CONFIG_CACHE_L2X0
l2x0_of_init(0, ~0UL);
#endif
--- a/arch/arm/mach-mvebu/armada-370-xp.h
+++ b/arch/arm/mach-mvebu/armada-370-xp.h
@@ -15,14 +15,6 @@
#ifndef __MACH_ARMADA_370_XP_H
#define __MACH_ARMADA_370_XP_H
-#define ARMADA_370_XP_REGS_PHYS_BASE 0xd0000000
-
-/* These defines can go away once mvebu-mbus has a DT binding */
-#define ARMADA_370_XP_MBUS_WINS_BASE (ARMADA_370_XP_REGS_PHYS_BASE + 0x20000)
-#define ARMADA_370_XP_MBUS_WINS_SIZE 0x100
-#define ARMADA_370_XP_SDRAM_WINS_BASE (ARMADA_370_XP_REGS_PHYS_BASE + 0x20180)
-#define ARMADA_370_XP_SDRAM_WINS_SIZE 0x20
-
#ifdef CONFIG_SMP
#include <linux/cpumask.h>

85
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@ -0,0 +1,85 @@
From 70c30ca997919a4b8c9051a3903f30c79c735f12 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 5 Jun 2013 09:05:00 +0200
Subject: [PATCH 030/203] arm: mvebu: add another earlyprintk Kconfig option
In order to support both old and new bootloaders, we add a new Kconfig
option for the earlyprintk UART selection. The existing option allows
to work with old bootloaders (that keep the internal registers mapped
at 0xd0000000), while the newly introduced option allows to work with
new bootloaders (that remap the internal registers at 0xf1000000).
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/Kconfig.debug | 30 ++++++++++++++++++++++++++++--
arch/arm/include/debug/mvebu.S | 5 +++++
2 files changed, 33 insertions(+), 2 deletions(-)
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -303,12 +303,37 @@ choice
their output to the serial port on MSM 8960 devices.
config DEBUG_MVEBU_UART
- bool "Kernel low-level debugging messages via MVEBU UART"
+ bool "Kernel low-level debugging messages via MVEBU UART (old bootloaders)"
depends on ARCH_MVEBU
help
Say Y here if you want kernel low-level debugging support
on MVEBU based platforms.
+ This option should be used with the old bootloaders
+ that left the internal registers mapped at
+ 0xd0000000. As of today, this is the case on
+ platforms such as the Globalscale Mirabox or the
+ Plathome OpenBlocks AX3, when using the original
+ bootloader.
+
+ If the wrong DEBUG_MVEBU_UART* option is selected,
+ when u-boot hands over to the kernel, the system
+ silently crashes, with no serial output at all.
+
+ config DEBUG_MVEBU_UART_ALTERNATE
+ bool "Kernel low-level debugging messages via MVEBU UART (new bootloaders)"
+ depends on ARCH_MVEBU
+ help
+ Say Y here if you want kernel low-level debugging support
+ on MVEBU based platforms.
+
+ This option should be used with the new bootloaders
+ that remap the internal registers at 0xf1000000.
+
+ If the wrong DEBUG_MVEBU_UART* option is selected,
+ when u-boot hands over to the kernel, the system
+ silently crashes, with no serial output at all.
+
config DEBUG_NOMADIK_UART
bool "Kernel low-level debugging messages via NOMADIK UART"
depends on ARCH_NOMADIK
@@ -632,7 +657,8 @@ config DEBUG_LL_INCLUDE
DEBUG_IMX51_UART || \
DEBUG_IMX53_UART ||\
DEBUG_IMX6Q_UART
- default "debug/mvebu.S" if DEBUG_MVEBU_UART
+ default "debug/mvebu.S" if DEBUG_MVEBU_UART || \
+ DEBUG_MVEBU_UART_ALTERNATE
default "debug/mxs.S" if DEBUG_IMX23_UART || DEBUG_IMX28_UART
default "debug/nomadik.S" if DEBUG_NOMADIK_UART
default "debug/omap2plus.S" if DEBUG_OMAP2PLUS_UART
--- a/arch/arm/include/debug/mvebu.S
+++ b/arch/arm/include/debug/mvebu.S
@@ -11,7 +11,12 @@
* published by the Free Software Foundation.
*/
+#ifdef CONFIG_DEBUG_MVEBU_UART_ALTERNATE
+#define ARMADA_370_XP_REGS_PHYS_BASE 0xf1000000
+#else
#define ARMADA_370_XP_REGS_PHYS_BASE 0xd0000000
+#endif
+
#define ARMADA_370_XP_REGS_VIRT_BASE 0xfec00000
.macro addruart, rp, rv, tmp

27
target/linux/mvebu/patches-3.10/0031-arm-mvebu-disable-DEBUG_LL-EARLY_PRINTK-in-defconfig.patch Normal file
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@ -0,0 +1,27 @@
From 7a3b99b8d16f2eb9ae5ac4ddf5e201eacdfacbf4 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Wed, 5 Jun 2013 09:05:01 +0200
Subject: [PATCH 031/203] arm: mvebu: disable DEBUG_LL/EARLY_PRINTK in
defconfig
Now that we have two different addresses for the UART, depending on
which bootloader is used, it is no longer desirable to enable
earlyprintk by default in the defconfig. Users who need earlyprintk
support will have to enable it explicitly, and select the right UART
configuration depending on their platform.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/configs/mvebu_defconfig | 2 --
1 file changed, 2 deletions(-)
--- a/arch/arm/configs/mvebu_defconfig
+++ b/arch/arm/configs/mvebu_defconfig
@@ -100,5 +100,3 @@ CONFIG_TIMER_STATS=y
# CONFIG_DEBUG_BUGVERBOSE is not set
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_USER=y
-CONFIG_DEBUG_LL=y
-CONFIG_EARLY_PRINTK=y

42
target/linux/mvebu/patches-3.10/0032-arm-mvebu-enable-mini-PCIe-connectors-on-Armada-370-.patch Normal file
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@ -0,0 +1,42 @@
From e552d168344e941a1781682207269dbfd27850b1 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue, 18 Jun 2013 15:37:41 +0200
Subject: [PATCH 032/203] arm: mvebu: enable mini-PCIe connectors on Armada 370
RD
The Armada 370 RD board has two internal mini-PCIe connectors. This
commit adds the necessary Device Tree informations to enable the usage
of those mini-PCIe connectors.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/boot/dts/armada-370-rd.dts | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/arch/arm/boot/dts/armada-370-rd.dts
+++ b/arch/arm/boot/dts/armada-370-rd.dts
@@ -85,6 +85,22 @@
gpios = <&gpio0 6 1>;
};
};
+
+ pcie-controller {
+ status = "okay";
+
+ /* Internal mini-PCIe connector */
+ pcie@1,0 {
+ /* Port 0, Lane 0 */
+ status = "okay";
+ };
+
+ /* Internal mini-PCIe connector */
+ pcie@2,0 {
+ /* Port 1, Lane 0 */
+ status = "okay";
+ };
+ };
};
};
};

41
target/linux/mvebu/patches-3.10/0033-arm-mvebu-fix-coherency_late_init-for-multiplatform.patch Normal file
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@ -0,0 +1,41 @@
From 3891658a01af7e875d4c176ebb5d713d74a6e998 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Thu, 20 Jun 2013 09:45:26 +0200
Subject: [PATCH 033/203] arm: mvebu: fix coherency_late_init() for
multiplatform
As noticed by Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org>, commit
865e0527d2d7 ('arm: mvebu: avoid hardcoded virtual address in
coherency code') added a postcore_initcall() to register the bus
notifier that the mvebu code needs to apply correct DMA operations on
its platform devices breaks the multiplatform boot on other platforms,
because the bus notifier registration is unconditional.
This commit fixes that by registering the bus notifier only if we have
the mvebu coherency unit described in the Device Tree. The conditional
used is exactly the same in which the bus_register_notifier() call was
originally enclosed before 865e0527d2d7 ('arm: mvebu: avoid hardcoded
virtual address in coherency code').
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reported-by: Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/mach-mvebu/coherency.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -147,8 +147,9 @@ int __init coherency_init(void)
static int __init coherency_late_init(void)
{
- bus_register_notifier(&platform_bus_type,
- &mvebu_hwcc_platform_nb);
+ if (of_find_matching_node(NULL, of_coherency_table))
+ bus_register_notifier(&platform_bus_type,
+ &mvebu_hwcc_platform_nb);
return 0;
}

53
target/linux/mvebu/patches-3.10/0034-ARM-mvebu-fix-length-of-ethernet-registers-in-mv7826.patch Normal file
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@ -0,0 +1,53 @@
From 4f6da1286d2602e00c049c29eb9e816587c752a5 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Sat, 22 Jun 2013 13:52:27 -0300
Subject: [PATCH 034/203] ARM: mvebu: fix length of ethernet registers in
mv78260 dtsi
The length of the registers area for the Marvell 370/XP Ethernet controller
was incorrect in the .dtsi: 0x2500, while it should have been 0x4000.
This problem wasn't noticed because there used to be a static mapping for
all the MMIO register region set up by ->map_io().
The register length was fixed in all the other device tree files,
except from the armada-xp-mv78260.dtsi, in the following commit:
commit cf8088c5cac6ce20d914b9131533844b9291a054
Author: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Tue May 21 12:33:27 2013 +0200
arm: mvebu: fix length of Ethernet registers area in .dtsi
This commit fixes a kernel panic in mvneta_probe(), when the kernel
tries to access the unmapped registers:
[ 163.639092] mvneta d0070000.ethernet eth0: mac: 6e:3c:4f:87:17:2e
[ 163.646962] mvneta d0074000.ethernet eth1: mac: 6a:04:4e:6f:f5:ef
[ 163.654853] mvneta d0030000.ethernet eth2: mac: 2a:99:19:19:fc:4c
[ 163.661258] Unable to handle kernel paging request at virtual address f011bcf0
[ 163.668523] pgd = c0004000
[ 163.671237] [f011bcf0] *pgd=2f006811, *pte=00000000, *ppte=00000000
[ 163.677565] Internal error: Oops: 807 [#1] SMP ARM
[ 163.682370] CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.0-rc6-01850-gba0682e #11
[ 163.690046] task: ef04c000 ti: ef03e000 task.ti: ef03e000
[ 163.695467] PC is at mvneta_probe+0x34c/0xabc
[...]
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Acked-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
---
arch/arm/boot/dts/armada-xp-mv78260.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/arch/arm/boot/dts/armada-xp-mv78260.dtsi
+++ b/arch/arm/boot/dts/armada-xp-mv78260.dtsi
@@ -92,7 +92,7 @@
ethernet@34000 {
compatible = "marvell,armada-370-neta";
- reg = <0x34000 0x2500>;
+ reg = <0x34000 0x4000>;
interrupts = <14>;
clocks = <&gateclk 1>;
status = "disabled";

51
target/linux/mvebu/patches-3.10/0035-i2c-mv64xxx-Set-bus-frequency-to-100kHz-if-clock-fre.patch Normal file
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@ -0,0 +1,51 @@
From 76de914223ec09274a7857e0d8cd7b739205dc3c Mon Sep 17 00:00:00 2001
From: Gregory CLEMENT <gregory.clement@free-electrons.com>
Date: Fri, 21 Jun 2013 15:32:06 +0200
Subject: [PATCH 035/203] i2c: mv64xxx: Set bus frequency to 100kHz if
clock-frequency is not provided
This commit adds checking whether clock-frequency property acquisition
has succeeded. If not, the frequency is set to 100kHz by default.
The Device Tree binding documentation is updated accordingly.
Based on the intials patches from Zbigniew Bodek
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Zbigniew Bodek <zbb@semihalf.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
---
Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt | 6 +++++-
drivers/i2c/busses/i2c-mv64xxx.c | 6 +++++-
2 files changed, 10 insertions(+), 2 deletions(-)
--- a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
+++ b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
@@ -6,7 +6,11 @@ Required properties :
- reg : Offset and length of the register set for the device
- compatible : Should be "marvell,mv64xxx-i2c"
- interrupts : The interrupt number
- - clock-frequency : Desired I2C bus clock frequency in Hz.
+
+Optional properties :
+
+ - clock-frequency : Desired I2C bus clock frequency in Hz. If not set the
+default frequency is 100kHz
Examples:
--- a/drivers/i2c/busses/i2c-mv64xxx.c
+++ b/drivers/i2c/busses/i2c-mv64xxx.c
@@ -580,7 +580,11 @@ mv64xxx_of_config(struct mv64xxx_i2c_dat
goto out;
}
tclk = clk_get_rate(drv_data->clk);
- of_property_read_u32(np, "clock-frequency", &bus_freq);
+
+ rc = of_property_read_u32(np, "clock-frequency", &bus_freq);
+ if (rc)
+ bus_freq = 100000; /* 100kHz by default */
+
if (!mv64xxx_find_baud_factors(bus_freq, tclk,
&drv_data->freq_n, &drv_data->freq_m)) {
rc = -EINVAL;

91
target/linux/mvebu/patches-3.10/0036-PCI-mvebu-Disable-prefetchable-memory-support-in-PCI.patch Normal file
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@ -0,0 +1,91 @@
From 71a32c9519ba223d1dafcbe58d1699710720c5a8 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Thu, 1 Aug 2013 15:44:19 +0200
Subject: [PATCH 036/203] PCI: mvebu: Disable prefetchable memory support in
PCI-to-PCI bridge
The Marvell PCIe driver uses an emulated PCI-to-PCI bridge to be able
to dynamically set up MBus address decoding windows for PCI I/O and
memory regions depending on the PCI devices enumerated by Linux.
However, this emulated PCI-to-PCI bridge logic makes the Linux PCI
core believe that prefetchable memory regions are supported (because
the registers are read/write), while in fact no adress decoding window
is ever created for such regions. Since the Marvell MBus address
decoding windows do not distinguish memory regions and prefetchable
memory regions, this patch takes a simple approach: change the
PCI-to-PCI bridge emulation to let the Linux PCI core know that we
don't support prefetchable memory regions.
To achieve this, we simply make the prefetchable memory base a
read-only register that always returns 0. Reading/writing all the
other prefetchable memory related registers has no effect.
This problem was originally reported by Finn Hoffmann
<finn@uni-bremen.de>, who couldn't get a RTL8111/8168B PCI NIC working
on the NSA310 Kirkwood platform after updating to 3.11-rc. The problem
was that the PCI-to-PCI bridge emulation was making the Linux PCI core
believe that we support prefetchable memory, so the Linux PCI core was
only filling the prefetchable memory base and limit registers, which
does not lead to a MBus window being created. The below patch has been
confirmed by Finn Hoffmann to fix his problem on Kirkwood, and has
otherwise been successfully tested on the Armada XP GP platform with a
e1000e PCIe NIC and a Marvell SATA PCIe card.
Reported-by: Finn Hoffmann <finn@uni-bremen.de>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
drivers/pci/host/pci-mvebu.c | 27 +--------------------------
1 file changed, 1 insertion(+), 26 deletions(-)
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -86,10 +86,6 @@ struct mvebu_sw_pci_bridge {
u16 secondary_status;
u16 membase;
u16 memlimit;
- u16 prefmembase;
- u16 prefmemlimit;
- u32 prefbaseupper;
- u32 preflimitupper;
u16 iobaseupper;
u16 iolimitupper;
u8 cappointer;
@@ -419,15 +415,7 @@ static int mvebu_sw_pci_bridge_read(stru
break;
case PCI_PREF_MEMORY_BASE:
- *value = (bridge->prefmemlimit << 16 | bridge->prefmembase);
- break;
-
- case PCI_PREF_BASE_UPPER32:
- *value = bridge->prefbaseupper;
- break;
-
- case PCI_PREF_LIMIT_UPPER32:
- *value = bridge->preflimitupper;
+ *value = 0;
break;
case PCI_IO_BASE_UPPER16:
@@ -501,19 +489,6 @@ static int mvebu_sw_pci_bridge_write(str
mvebu_pcie_handle_membase_change(port);
break;
- case PCI_PREF_MEMORY_BASE:
- bridge->prefmembase = value & 0xffff;
- bridge->prefmemlimit = value >> 16;
- break;
-
- case PCI_PREF_BASE_UPPER32:
- bridge->prefbaseupper = value;
- break;
-
- case PCI_PREF_LIMIT_UPPER32:
- bridge->preflimitupper = value;
- break;
-
case PCI_IO_BASE_UPPER16:
bridge->iobaseupper = value & 0xffff;
bridge->iolimitupper = value >> 16;

109
target/linux/mvebu/patches-3.10/0037-memory-mvebu-devbus-Remove-address-decoding-window-w.patch Normal file
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@ -0,0 +1,109 @@
From 9760aafa716292050a96d71a4bd7bd4e66053975 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 21 May 2013 10:24:48 -0300
Subject: [PATCH 037/203] memory: mvebu-devbus: Remove address decoding window
workaround
Now that mbus device tree binding has been introduced, remove the address
decoding window management from this driver.
A suitable 'ranges' entry should be added to the devbus-compatible node in
the device tree, as described by the mbus binding documentation.
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/memory/mvebu-devbus.c | 64 ++-----------------------------------------
1 file changed, 2 insertions(+), 62 deletions(-)
--- a/drivers/memory/mvebu-devbus.c
+++ b/drivers/memory/mvebu-devbus.c
@@ -208,16 +208,11 @@ static int mvebu_devbus_probe(struct pla
{
struct device *dev = &pdev->dev;
struct device_node *node = pdev->dev.of_node;
- struct device_node *parent;
struct devbus *devbus;
struct resource *res;
struct clk *clk;
unsigned long rate;
- const __be32 *ranges;
- int err, cs;
- int addr_cells, p_addr_cells, size_cells;
- int ranges_len, tuple_len;
- u32 base, size;
+ int err;
devbus = devm_kzalloc(&pdev->dev, sizeof(struct devbus), GFP_KERNEL);
if (!devbus)
@@ -248,68 +243,13 @@ static int mvebu_devbus_probe(struct pla
return err;
/*
- * Allocate an address window for this device.
- * If the device probing fails, then we won't be able to
- * remove the allocated address decoding window.
- *
- * FIXME: This is only a temporary hack! We need to do this here
- * because we still don't have device tree bindings for mbus.
- * Once that support is added, we will declare these address windows
- * statically in the device tree, and remove the window configuration
- * from here.
- */
-
- /*
- * Get the CS to choose the window string.
- * This is a bit hacky, but it will be removed once the
- * address windows are declared in the device tree.
- */
- cs = (((unsigned long)devbus->base) % 0x400) / 8;
-
- /*
- * Parse 'ranges' property to obtain a (base,size) window tuple.
- * This will be removed once the address windows
- * are declared in the device tree.
- */
- parent = of_get_parent(node);
- if (!parent)
- return -EINVAL;
-
- p_addr_cells = of_n_addr_cells(parent);
- of_node_put(parent);
-
- addr_cells = of_n_addr_cells(node);
- size_cells = of_n_size_cells(node);
- tuple_len = (p_addr_cells + addr_cells + size_cells) * sizeof(__be32);
-
- ranges = of_get_property(node, "ranges", &ranges_len);
- if (ranges == NULL || ranges_len != tuple_len)
- return -EINVAL;
-
- base = of_translate_address(node, ranges + addr_cells);
- if (base == OF_BAD_ADDR)
- return -EINVAL;
- size = of_read_number(ranges + addr_cells + p_addr_cells, size_cells);
-
- /*
- * Create an mbus address windows.
- * FIXME: Remove this, together with the above code, once the
- * address windows are declared in the device tree.
- */
- err = mvebu_mbus_add_window(devbus_wins[cs], base, size);
- if (err < 0)
- return err;
-
- /*
* We need to create a child device explicitly from here to
* guarantee that the child will be probed after the timing
* parameters for the bus are written.
*/
err = of_platform_populate(node, NULL, NULL, dev);
- if (err < 0) {
- mvebu_mbus_del_window(base, size);
+ if (err < 0)
return err;
- }
return 0;
}

90
target/linux/mvebu/patches-3.10/0038-bus-mvebu-mbus-Add-new-API-for-window-creation.patch Normal file
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@ -0,0 +1,90 @@
From 93b6bd1bf81cffd3e5739478c4434bf25458ec7d Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 5 Jul 2013 14:54:16 +0200
Subject: [PATCH 038/203] bus: mvebu-mbus: Add new API for window creation
We add an API to create MBus address decoding windows from the target
ID and attribute. This function will be used later and deprecate the
current name based scheme.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/bus/mvebu-mbus.c | 33 +++++++++++++++++++++++++--------
include/linux/mbus.h | 6 ++++++
2 files changed, 31 insertions(+), 8 deletions(-)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -748,6 +748,22 @@ static const struct of_device_id of_mveb
/*
* Public API of the driver
*/
+int mvebu_mbus_add_window_remap_by_id(unsigned int target,
+ unsigned int attribute,
+ phys_addr_t base, size_t size,
+ phys_addr_t remap)
+{
+ struct mvebu_mbus_state *s = &mbus_state;
+
+ if (!mvebu_mbus_window_conflicts(s, base, size, target, attribute)) {
+ pr_err("cannot add window '%x:%x', conflicts with another window\n",
+ target, attribute);
+ return -EINVAL;
+ }
+
+ return mvebu_mbus_alloc_window(s, base, size, remap, target, attribute);
+}
+
int mvebu_mbus_add_window_remap_flags(const char *devname, phys_addr_t base,
size_t size, phys_addr_t remap,
unsigned int flags)
@@ -776,14 +792,8 @@ int mvebu_mbus_add_window_remap_flags(co
else if (flags == MVEBU_MBUS_PCI_WA)
attr |= 0x28;
- if (!mvebu_mbus_window_conflicts(s, base, size, target, attr)) {
- pr_err("cannot add window '%s', conflicts with another window\n",
- devname);
- return -EINVAL;
- }
-
- return mvebu_mbus_alloc_window(s, base, size, remap, target, attr);
-
+ return mvebu_mbus_add_window_remap_by_id(target, attr, base,
+ size, remap);
}
int mvebu_mbus_add_window(const char *devname, phys_addr_t base, size_t size)
@@ -792,6 +802,13 @@ int mvebu_mbus_add_window(const char *de
MVEBU_MBUS_NO_REMAP, 0);
}
+int mvebu_mbus_add_window_by_id(unsigned int target, unsigned int attribute,
+ phys_addr_t base, size_t size)
+{
+ return mvebu_mbus_add_window_remap_by_id(target, attribute, base,
+ size, MVEBU_MBUS_NO_REMAP);
+}
+
int mvebu_mbus_del_window(phys_addr_t base, size_t size)
{
int win;
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -62,8 +62,14 @@ static inline const struct mbus_dram_tar
int mvebu_mbus_add_window_remap_flags(const char *devname, phys_addr_t base,
size_t size, phys_addr_t remap,
unsigned int flags);
+int mvebu_mbus_add_window_remap_by_id(unsigned int target,
+ unsigned int attribute,
+ phys_addr_t base, size_t size,
+ phys_addr_t remap);
int mvebu_mbus_add_window(const char *devname, phys_addr_t base,
size_t size);
+int mvebu_mbus_add_window_by_id(unsigned int target, unsigned int attribute,
+ phys_addr_t base, size_t size);
int mvebu_mbus_del_window(phys_addr_t base, size_t size);
int mvebu_mbus_init(const char *soc, phys_addr_t mbus_phys_base,
size_t mbus_size, phys_addr_t sdram_phys_base,

81
target/linux/mvebu/patches-3.10/0043-bus-mvebu-mbus-Factor-out-initialization-details.patch Normal file
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@ -0,0 +1,81 @@
From 5be79ea0d2bcec8c7360cfe3e7a491e5f176fa84 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 21 May 2013 10:44:54 -0300
Subject: [PATCH 043/203] bus: mvebu-mbus: Factor out initialization details
We introduce a common initialization function mvebu_mbus_common_init()
that will be used by both legacy and device-tree initialization code.
This patch is an intermediate step, which will allow to introduce the
DT binding for this driver in a less intrusive way.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/bus/mvebu-mbus.c | 47 ++++++++++++++++++++++++++++++-----------------
1 file changed, 30 insertions(+), 17 deletions(-)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -847,26 +847,14 @@ static __init int mvebu_mbus_debugfs_ini
}
fs_initcall(mvebu_mbus_debugfs_init);
-int __init mvebu_mbus_init(const char *soc, phys_addr_t mbuswins_phys_base,
- size_t mbuswins_size,
- phys_addr_t sdramwins_phys_base,
- size_t sdramwins_size)
+static int __init mvebu_mbus_common_init(struct mvebu_mbus_state *mbus,
+ phys_addr_t mbuswins_phys_base,
+ size_t mbuswins_size,
+ phys_addr_t sdramwins_phys_base,
+ size_t sdramwins_size)
{
- struct mvebu_mbus_state *mbus = &mbus_state;
- const struct of_device_id *of_id;
int win;
- for (of_id = of_mvebu_mbus_ids; of_id->compatible; of_id++)
- if (!strcmp(of_id->compatible, soc))
- break;
-
- if (!of_id->compatible) {
- pr_err("could not find a matching SoC family\n");
- return -ENODEV;
- }
-
- mbus->soc = of_id->data;
-
mbus->mbuswins_base = ioremap(mbuswins_phys_base, mbuswins_size);
if (!mbus->mbuswins_base)
return -ENOMEM;
@@ -887,3 +875,28 @@ int __init mvebu_mbus_init(const char *s
return 0;
}
+
+int __init mvebu_mbus_init(const char *soc, phys_addr_t mbuswins_phys_base,
+ size_t mbuswins_size,
+ phys_addr_t sdramwins_phys_base,
+ size_t sdramwins_size)
+{
+ const struct of_device_id *of_id;
+
+ for (of_id = of_mvebu_mbus_ids; of_id->compatible; of_id++)
+ if (!strcmp(of_id->compatible, soc))
+ break;
+
+ if (!of_id->compatible) {
+ pr_err("could not find a matching SoC family\n");
+ return -ENODEV;
+ }
+
+ mbus_state.soc = of_id->data;
+
+ return mvebu_mbus_common_init(&mbus_state,
+ mbuswins_phys_base,
+ mbuswins_size,
+ sdramwins_phys_base,
+ sdramwins_size);
+}

83
target/linux/mvebu/patches-3.10/0044-bus-mvebu-mbus-Introduce-device-tree-binding.patch Normal file
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@ -0,0 +1,83 @@
From e4123095febc94c547c0459db752e7879db79d76 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 21 May 2013 10:48:54 -0300
Subject: [PATCH 044/203] bus: mvebu-mbus: Introduce device tree binding
This patch adds the most fundamental device-tree initialization.
We only introduce what's required to be able to probe the mvebu-mbus
driver from the DT. Follow-up patches will extend the device tree binding,
allowing to describe static address decoding windows.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/bus/mvebu-mbus.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/mbus.h | 1 +
2 files changed, 50 insertions(+)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -900,3 +900,52 @@ int __init mvebu_mbus_init(const char *s
sdramwins_phys_base,
sdramwins_size);
}
+
+#ifdef CONFIG_OF
+int __init mvebu_mbus_dt_init(void)
+{
+ struct resource mbuswins_res, sdramwins_res;
+ struct device_node *np, *controller;
+ const struct of_device_id *of_id;
+ const __be32 *prop;
+ int ret;
+
+ np = of_find_matching_node(NULL, of_mvebu_mbus_ids);
+ if (!np) {
+ pr_err("could not find a matching SoC family\n");
+ return -ENODEV;
+ }
+
+ of_id = of_match_node(of_mvebu_mbus_ids, np);
+ mbus_state.soc = of_id->data;
+
+ prop = of_get_property(np, "controller", NULL);
+ if (!prop) {
+ pr_err("required 'controller' property missing\n");
+ return -EINVAL;
+ }
+
+ controller = of_find_node_by_phandle(be32_to_cpup(prop));
+ if (!controller) {
+ pr_err("could not find an 'mbus-controller' node\n");
+ return -ENODEV;
+ }
+
+ if (of_address_to_resource(controller, 0, &mbuswins_res)) {
+ pr_err("cannot get MBUS register address\n");
+ return -EINVAL;
+ }
+
+ if (of_address_to_resource(controller, 1, &sdramwins_res)) {
+ pr_err("cannot get SDRAM register address\n");
+ return -EINVAL;
+ }
+
+ ret = mvebu_mbus_common_init(&mbus_state,
+ mbuswins_res.start,
+ resource_size(&mbuswins_res),
+ sdramwins_res.start,
+ resource_size(&sdramwins_res));
+ return ret;
+}
+#endif
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -74,5 +74,6 @@ int mvebu_mbus_del_window(phys_addr_t ba
int mvebu_mbus_init(const char *soc, phys_addr_t mbus_phys_base,
size_t mbus_size, phys_addr_t sdram_phys_base,
size_t sdram_size);
+int mvebu_mbus_dt_init(void);
#endif /* __LINUX_MBUS_H */

160
target/linux/mvebu/patches-3.10/0045-bus-mvebu-mbus-Add-static-window-allocation-to-the-D.patch Normal file
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@ -0,0 +1,160 @@
From ece28a7e105cedb5a9ebd2553aa41d965fb83b64 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 28 May 2013 07:58:31 -0300
Subject: [PATCH 045/203] bus: mvebu-mbus: Add static window allocation to the
DT binding
This patch adds static window allocation to the device tree binding.
Each first-child of the mbus-compatible node, with a suitable 'ranges'
property, declaring an address translation, will trigger an address
decoding window allocation.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/bus/mvebu-mbus.c | 127 ++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 126 insertions(+), 1 deletion(-)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -902,6 +902,127 @@ int __init mvebu_mbus_init(const char *s
}
#ifdef CONFIG_OF
+/*
+ * The window IDs in the ranges DT property have the following format:
+ * - bits 28 to 31: MBus custom field
+ * - bits 24 to 27: window target ID
+ * - bits 16 to 23: window attribute ID
+ * - bits 0 to 15: unused
+ */
+#define CUSTOM(id) (((id) & 0xF0000000) >> 24)
+#define TARGET(id) (((id) & 0x0F000000) >> 24)
+#define ATTR(id) (((id) & 0x00FF0000) >> 16)
+
+static int __init mbus_dt_setup_win(struct mvebu_mbus_state *mbus,
+ u32 base, u32 size,
+ u8 target, u8 attr)
+{
+ const struct mvebu_mbus_mapping *map = mbus->soc->map;
+ const char *name;
+ int i;
+
+ /* Search for a suitable window in the existing mappings */
+ for (i = 0; map[i].name; i++)
+ if (map[i].target == target &&
+ map[i].attr == (attr & map[i].attrmask))
+ break;
+
+ name = map[i].name;
+ if (!name) {
+ pr_err("window 0x%x:0x%x is unknown, skipping\n",
+ target, attr);
+ return -EINVAL;
+ }
+
+ if (!mvebu_mbus_window_conflicts(mbus, base, size, target, attr)) {
+ pr_err("cannot add window '%s', conflicts with another window\n",
+ name);
+ return -EBUSY;
+ }
+
+ if (mvebu_mbus_alloc_window(mbus, base, size, MVEBU_MBUS_NO_REMAP,
+ target, attr)) {
+ pr_err("cannot add window '%s', too many windows\n",
+ name);
+ return -ENOMEM;
+ }
+ return 0;
+}
+
+static int __init
+mbus_parse_ranges(struct device_node *node,
+ int *addr_cells, int *c_addr_cells, int *c_size_cells,
+ int *cell_count, const __be32 **ranges_start,
+ const __be32 **ranges_end)
+{
+ const __be32 *prop;
+ int ranges_len, tuple_len;
+
+ /* Allow a node with no 'ranges' property */
+ *ranges_start = of_get_property(node, "ranges", &ranges_len);
+ if (*ranges_start == NULL) {
+ *addr_cells = *c_addr_cells = *c_size_cells = *cell_count = 0;
+ *ranges_start = *ranges_end = NULL;
+ return 0;
+ }
+ *ranges_end = *ranges_start + ranges_len / sizeof(__be32);
+
+ *addr_cells = of_n_addr_cells(node);
+
+ prop = of_get_property(node, "#address-cells", NULL);
+ *c_addr_cells = be32_to_cpup(prop);
+
+ prop = of_get_property(node, "#size-cells", NULL);
+ *c_size_cells = be32_to_cpup(prop);
+
+ *cell_count = *addr_cells + *c_addr_cells + *c_size_cells;
+ tuple_len = (*cell_count) * sizeof(__be32);
+
+ if (ranges_len % tuple_len) {
+ pr_warn("malformed ranges entry '%s'\n", node->name);
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int __init mbus_dt_setup(struct mvebu_mbus_state *mbus,
+ struct device_node *np)
+{
+ int addr_cells, c_addr_cells, c_size_cells;
+ int i, ret, cell_count;
+ const __be32 *r, *ranges_start, *ranges_end;
+
+ ret = mbus_parse_ranges(np, &addr_cells, &c_addr_cells,
+ &c_size_cells, &cell_count,
+ &ranges_start, &ranges_end);
+ if (ret < 0)
+ return ret;
+
+ for (i = 0, r = ranges_start; r < ranges_end; r += cell_count, i++) {
+ u32 windowid, base, size;
+ u8 target, attr;
+
+ /*
+ * An entry with a non-zero custom field do not
+ * correspond to a static window, so skip it.
+ */
+ windowid = of_read_number(r, 1);
+ if (CUSTOM(windowid))
+ continue;
+
+ target = TARGET(windowid);
+ attr = ATTR(windowid);
+
+ base = of_read_number(r + c_addr_cells, addr_cells);
+ size = of_read_number(r + c_addr_cells + addr_cells,
+ c_size_cells);
+ ret = mbus_dt_setup_win(mbus, base, size, target, attr);
+ if (ret < 0)
+ return ret;
+ }
+ return 0;
+}
+
int __init mvebu_mbus_dt_init(void)
{
struct resource mbuswins_res, sdramwins_res;
@@ -946,6 +1067,10 @@ int __init mvebu_mbus_dt_init(void)
resource_size(&mbuswins_res),
sdramwins_res.start,
resource_size(&sdramwins_res));
- return ret;
+ if (ret)
+ return ret;
+
+ /* Setup statically declared windows in the DT */
+ return mbus_dt_setup(&mbus_state, np);
}
#endif

121
target/linux/mvebu/patches-3.10/0046-bus-mvebu-mbus-Add-new-API-for-the-PCIe-memory-and-I.patch Normal file
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@ -0,0 +1,121 @@
From c9646c891dbd07061a9ff5e061f9f9e54c571349 Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 9 Jul 2013 10:41:53 -0300
Subject: [PATCH 046/203] bus: mvebu-mbus: Add new API for the PCIe memory and
IO aperture
We add two optional properties to the MBus DT binding, to encode
the PCIe memory and IO aperture. This allows such information to
be retrieved by -for instance- the pci driver to allocate the
MBus decoding windows.
Correspondingly, and in order to retrieve this information,
we add two new APIs.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/bus/mvebu-mbus.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++
include/linux/mbus.h | 4 ++++
2 files changed, 53 insertions(+)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -142,6 +142,8 @@ struct mvebu_mbus_state {
struct dentry *debugfs_root;
struct dentry *debugfs_sdram;
struct dentry *debugfs_devs;
+ struct resource pcie_mem_aperture;
+ struct resource pcie_io_aperture;
const struct mvebu_mbus_soc_data *soc;
int hw_io_coherency;
};
@@ -821,6 +823,20 @@ int mvebu_mbus_del_window(phys_addr_t ba
return 0;
}
+void mvebu_mbus_get_pcie_mem_aperture(struct resource *res)
+{
+ if (!res)
+ return;
+ *res = mbus_state.pcie_mem_aperture;
+}
+
+void mvebu_mbus_get_pcie_io_aperture(struct resource *res)
+{
+ if (!res)
+ return;
+ *res = mbus_state.pcie_io_aperture;
+}
+
static __init int mvebu_mbus_debugfs_init(void)
{
struct mvebu_mbus_state *s = &mbus_state;
@@ -1023,6 +1039,35 @@ static int __init mbus_dt_setup(struct m
return 0;
}
+static void __init mvebu_mbus_get_pcie_resources(struct device_node *np,
+ struct resource *mem,
+ struct resource *io)
+{
+ u32 reg[2];
+ int ret;
+
+ /*
+ * These are optional, so we clear them and they'll
+ * be zero if they are missing from the DT.
+ */
+ memset(mem, 0, sizeof(struct resource));
+ memset(io, 0, sizeof(struct resource));
+
+ ret = of_property_read_u32_array(np, "pcie-mem-aperture", reg, ARRAY_SIZE(reg));
+ if (!ret) {
+ mem->start = reg[0];
+ mem->end = mem->start + reg[1];
+ mem->flags = IORESOURCE_MEM;
+ }
+
+ ret = of_property_read_u32_array(np, "pcie-io-aperture", reg, ARRAY_SIZE(reg));
+ if (!ret) {
+ io->start = reg[0];
+ io->end = io->start + reg[1];
+ io->flags = IORESOURCE_IO;
+ }
+}
+
int __init mvebu_mbus_dt_init(void)
{
struct resource mbuswins_res, sdramwins_res;
@@ -1062,6 +1107,10 @@ int __init mvebu_mbus_dt_init(void)
return -EINVAL;
}
+ /* Get optional pcie-{mem,io}-aperture properties */
+ mvebu_mbus_get_pcie_resources(np, &mbus_state.pcie_mem_aperture,
+ &mbus_state.pcie_io_aperture);
+
ret = mvebu_mbus_common_init(&mbus_state,
mbuswins_res.start,
resource_size(&mbuswins_res),
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -11,6 +11,8 @@
#ifndef __LINUX_MBUS_H
#define __LINUX_MBUS_H
+struct resource;
+
struct mbus_dram_target_info
{
/*
@@ -59,6 +61,8 @@ static inline const struct mbus_dram_tar
}
#endif
+void mvebu_mbus_get_pcie_mem_aperture(struct resource *res);
+void mvebu_mbus_get_pcie_io_aperture(struct resource *res);
int mvebu_mbus_add_window_remap_flags(const char *devname, phys_addr_t base,
size_t size, phys_addr_t remap,
unsigned int flags);

184
target/linux/mvebu/patches-3.10/0047-PCI-mvebu-Adapt-to-the-new-device-tree-layout.patch Normal file
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@ -0,0 +1,184 @@
From 90b1f963b07d05e8243e5053a910e8a47222f7a1 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 5 Jul 2013 14:54:17 +0200
Subject: [PATCH 047/203] PCI: mvebu: Adapt to the new device tree layout
The new device tree layout encodes the window's target ID and attribute
in the PCIe controller node's ranges property. This allows to parse
such entries to obtain such information and use the recently introduced
MBus API to create the windows, instead of using the current name based
scheme.
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/pci/host/pci-mvebu.c | 113 ++++++++++++++++++++++++++++++++-----------
1 file changed, 84 insertions(+), 29 deletions(-)
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -119,6 +119,10 @@ struct mvebu_pcie_port {
u32 port;
u32 lane;
int devfn;
+ unsigned int mem_target;
+ unsigned int mem_attr;
+ unsigned int io_target;
+ unsigned int io_attr;
struct clk *clk;
struct mvebu_sw_pci_bridge bridge;
struct device_node *dn;
@@ -303,10 +307,9 @@ static void mvebu_pcie_handle_iobase_cha
(port->bridge.iolimitupper << 16)) -
iobase);
- mvebu_mbus_add_window_remap_flags(port->name, port->iowin_base,
- port->iowin_size,
- iobase,
- MVEBU_MBUS_PCI_IO);
+ mvebu_mbus_add_window_remap_by_id(port->io_target, port->io_attr,
+ port->iowin_base, port->iowin_size,
+ iobase);
pci_ioremap_io(iobase, port->iowin_base);
}
@@ -338,10 +341,8 @@ static void mvebu_pcie_handle_membase_ch
(((port->bridge.memlimit & 0xFFF0) << 16) | 0xFFFFF) -
port->memwin_base;
- mvebu_mbus_add_window_remap_flags(port->name, port->memwin_base,
- port->memwin_size,
- MVEBU_MBUS_NO_REMAP,
- MVEBU_MBUS_PCI_MEM);
+ mvebu_mbus_add_window_by_id(port->mem_target, port->mem_attr,
+ port->memwin_base, port->memwin_size);
}
/*
@@ -730,12 +731,54 @@ mvebu_pcie_map_registers(struct platform
return devm_request_and_ioremap(&pdev->dev, &regs);
}
+#define DT_FLAGS_TO_TYPE(flags) (((flags) >> 24) & 0x03)
+#define DT_TYPE_IO 0x1
+#define DT_TYPE_MEM32 0x2
+#define DT_CPUADDR_TO_TARGET(cpuaddr) (((cpuaddr) >> 56) & 0xFF)
+#define DT_CPUADDR_TO_ATTR(cpuaddr) (((cpuaddr) >> 48) & 0xFF)
+
+static int mvebu_get_tgt_attr(struct device_node *np, int devfn,
+ unsigned long type, int *tgt, int *attr)
+{
+ const int na = 3, ns = 2;
+ const __be32 *range;
+ int rlen, nranges, rangesz, pna, i;
+
+ range = of_get_property(np, "ranges", &rlen);
+ if (!range)
+ return -EINVAL;
+
+ pna = of_n_addr_cells(np);
+ rangesz = pna + na + ns;
+ nranges = rlen / sizeof(__be32) / rangesz;
+
+ for (i = 0; i < nranges; i++) {
+ u32 flags = of_read_number(range, 1);
+ u32 slot = of_read_number(range, 2);
+ u64 cpuaddr = of_read_number(range + na, pna);
+ unsigned long rtype;
+
+ if (DT_FLAGS_TO_TYPE(flags) == DT_TYPE_IO)
+ rtype = IORESOURCE_IO;
+ else if (DT_FLAGS_TO_TYPE(flags) == DT_TYPE_MEM32)
+ rtype = IORESOURCE_MEM;
+
+ if (slot == PCI_SLOT(devfn) && type == rtype) {
+ *tgt = DT_CPUADDR_TO_TARGET(cpuaddr);
+ *attr = DT_CPUADDR_TO_ATTR(cpuaddr);
+ return 0;
+ }
+
+ range += rangesz;
+ }
+
+ return -ENOENT;
+}
+
static int __init mvebu_pcie_probe(struct platform_device *pdev)
{
struct mvebu_pcie *pcie;
struct device_node *np = pdev->dev.of_node;
- struct of_pci_range range;
- struct of_pci_range_parser parser;
struct device_node *child;
int i, ret;
@@ -746,29 +789,25 @@ static int __init mvebu_pcie_probe(struc
pcie->pdev = pdev;
- if (of_pci_range_parser_init(&parser, np))
+ /* Get the PCIe memory and I/O aperture */
+ mvebu_mbus_get_pcie_mem_aperture(&pcie->mem);
+ if (resource_size(&pcie->mem) == 0) {
+ dev_err(&pdev->dev, "invalid memory aperture size\n");
return -EINVAL;
+ }
- /* Get the I/O and memory ranges from DT */
- for_each_of_pci_range(&parser, &range) {
- unsigned long restype = range.flags & IORESOURCE_TYPE_BITS;
- if (restype == IORESOURCE_IO) {
- of_pci_range_to_resource(&range, np, &pcie->io);
- of_pci_range_to_resource(&range, np, &pcie->realio);
- pcie->io.name = "I/O";
- pcie->realio.start = max_t(resource_size_t,
- PCIBIOS_MIN_IO,
- range.pci_addr);
- pcie->realio.end = min_t(resource_size_t,
- IO_SPACE_LIMIT,
- range.pci_addr + range.size);
- }
- if (restype == IORESOURCE_MEM) {
- of_pci_range_to_resource(&range, np, &pcie->mem);
- pcie->mem.name = "MEM";
- }
+ mvebu_mbus_get_pcie_io_aperture(&pcie->io);
+ if (resource_size(&pcie->io) == 0) {
+ dev_err(&pdev->dev, "invalid I/O aperture size\n");
+ return -EINVAL;
}
+ pcie->realio.flags = pcie->io.flags;
+ pcie->realio.start = PCIBIOS_MIN_IO;
+ pcie->realio.end = min_t(resource_size_t,
+ IO_SPACE_LIMIT,
+ resource_size(&pcie->io));
+
/* Get the bus range */
ret = of_pci_parse_bus_range(np, &pcie->busn);
if (ret) {
@@ -816,6 +855,22 @@ static int __init mvebu_pcie_probe(struc
if (port->devfn < 0)
continue;
+ ret = mvebu_get_tgt_attr(np, port->devfn, IORESOURCE_MEM,
+ &port->mem_target, &port->mem_attr);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "PCIe%d.%d: cannot get tgt/attr for mem window\n",
+ port->port, port->lane);
+ continue;
+ }
+
+ ret = mvebu_get_tgt_attr(np, port->devfn, IORESOURCE_IO,
+ &port->io_target, &port->io_attr);
+ if (ret < 0) {
+ dev_err(&pdev->dev, "PCIe%d.%d: cannot get tgt/attr for io window\n",
+ port->port, port->lane);
+ continue;
+ }
+
port->base = mvebu_pcie_map_registers(pdev, child, port);
if (!port->base) {
dev_err(&pdev->dev, "PCIe%d.%d: cannot map registers\n",

29
target/linux/mvebu/patches-3.10/0048-PCI-mvebu-Check-valid-base-address-before-port-setup.patch Normal file
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@ -0,0 +1,29 @@
From 3dc077a80c71050e198e7884707ece042443fe3c Mon Sep 17 00:00:00 2001
From: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Date: Tue, 23 Jul 2013 07:36:00 -0300
Subject: [PATCH 048/203] PCI: mvebu: Check valid base address before port
setup
This driver does not fail to probe when it cannot obtain
a port base address. Therefore, add a check for NULL base address
before setting up the port, which prevents a kernel panic in such
cases.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/pci/host/pci-mvebu.c | 2 ++
1 file changed, 2 insertions(+)
--- a/drivers/pci/host/pci-mvebu.c
+++ b/drivers/pci/host/pci-mvebu.c
@@ -637,6 +637,8 @@ static int __init mvebu_pcie_setup(int n
for (i = 0; i < pcie->nports; i++) {
struct mvebu_pcie_port *port = &pcie->ports[i];
+ if (!port->base)
+ continue;
mvebu_pcie_setup_hw(port);
}

82
target/linux/mvebu/patches-3.10/0049-bus-mvebu-mbus-Remove-the-no-longer-used-name-based-.patch Normal file
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@ -0,0 +1,82 @@
From 1e94a8740cb1f9c328a3ae8ec4727d90bfb2d7f7 Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 5 Jul 2013 14:54:23 +0200
Subject: [PATCH 049/203] bus: mvebu-mbus: Remove the no longer used name-based
API
Now that every user of the deprecated name-based API has been
converted to using the ID-based API, let's remove the former one.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/bus/mvebu-mbus.c | 38 --------------------------------------
include/linux/mbus.h | 5 -----
2 files changed, 43 deletions(-)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -766,44 +766,6 @@ int mvebu_mbus_add_window_remap_by_id(un
return mvebu_mbus_alloc_window(s, base, size, remap, target, attribute);
}
-int mvebu_mbus_add_window_remap_flags(const char *devname, phys_addr_t base,
- size_t size, phys_addr_t remap,
- unsigned int flags)
-{
- struct mvebu_mbus_state *s = &mbus_state;
- u8 target, attr;
- int i;
-
- if (!s->soc->map)
- return -ENODEV;
-
- for (i = 0; s->soc->map[i].name; i++)
- if (!strcmp(s->soc->map[i].name, devname))
- break;
-
- if (!s->soc->map[i].name) {
- pr_err("unknown device '%s'\n", devname);
- return -ENODEV;
- }
-
- target = s->soc->map[i].target;
- attr = s->soc->map[i].attr;
-
- if (flags == MVEBU_MBUS_PCI_MEM)
- attr |= 0x8;
- else if (flags == MVEBU_MBUS_PCI_WA)
- attr |= 0x28;
-
- return mvebu_mbus_add_window_remap_by_id(target, attr, base,
- size, remap);
-}
-
-int mvebu_mbus_add_window(const char *devname, phys_addr_t base, size_t size)
-{
- return mvebu_mbus_add_window_remap_flags(devname, base, size,
- MVEBU_MBUS_NO_REMAP, 0);
-}
-
int mvebu_mbus_add_window_by_id(unsigned int target, unsigned int attribute,
phys_addr_t base, size_t size)
{
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -63,15 +63,10 @@ static inline const struct mbus_dram_tar
void mvebu_mbus_get_pcie_mem_aperture(struct resource *res);
void mvebu_mbus_get_pcie_io_aperture(struct resource *res);
-int mvebu_mbus_add_window_remap_flags(const char *devname, phys_addr_t base,
- size_t size, phys_addr_t remap,
- unsigned int flags);
int mvebu_mbus_add_window_remap_by_id(unsigned int target,
unsigned int attribute,
phys_addr_t base, size_t size,
phys_addr_t remap);
-int mvebu_mbus_add_window(const char *devname, phys_addr_t base,
- size_t size);
int mvebu_mbus_add_window_by_id(unsigned int target, unsigned int attribute,
phys_addr_t base, size_t size);
int mvebu_mbus_del_window(phys_addr_t base, size_t size);

266
target/linux/mvebu/patches-3.10/0050-bus-mvebu-mbus-Remove-name-target-attribute-mapping-.patch Normal file
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@ -0,0 +1,266 @@
From 08c3b38a75ca47b74c81d14e1715ab9dc7b0e5cb Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 5 Jul 2013 14:54:24 +0200
Subject: [PATCH 050/203] bus: mvebu-mbus: Remove name -> target, attribute
mapping tables
This tables were used together with the name-based MBus window
creation API. Since that's has been removed, we can also remove
the tables.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/bus/mvebu-mbus.c | 150 +++--------------------------------------------
1 file changed, 7 insertions(+), 143 deletions(-)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -97,33 +97,6 @@
#define DOVE_DDR_BASE_CS_OFF(n) ((n) << 4)
-struct mvebu_mbus_mapping {
- const char *name;
- u8 target;
- u8 attr;
- u8 attrmask;
-};
-
-/*
- * Masks used for the 'attrmask' field of mvebu_mbus_mapping. They
- * allow to get the real attribute value, discarding the special bits
- * used to select a PCI MEM region or a PCI WA region. This allows the
- * debugfs code to reverse-match the name of a device from its
- * target/attr values.
- *
- * For all devices except PCI, all bits of 'attr' must be
- * considered. For most SoCs, only bit 3 should be ignored (it allows
- * to select between PCI MEM and PCI I/O). On Orion5x however, there
- * is the special bit 5 to select a PCI WA region.
- */
-#define MAPDEF_NOMASK 0xff
-#define MAPDEF_PCIMASK 0xf7
-#define MAPDEF_ORIONPCIMASK 0xd7
-
-/* Macro used to define one mvebu_mbus_mapping entry */
-#define MAPDEF(__n, __t, __a, __m) \
- { .name = __n, .target = __t, .attr = __a, .attrmask = __m }
-
struct mvebu_mbus_state;
struct mvebu_mbus_soc_data {
@@ -133,7 +106,6 @@ struct mvebu_mbus_soc_data {
void (*setup_cpu_target)(struct mvebu_mbus_state *s);
int (*show_cpu_target)(struct mvebu_mbus_state *s,
struct seq_file *seq, void *v);
- const struct mvebu_mbus_mapping *map;
};
struct mvebu_mbus_state {
@@ -430,8 +402,7 @@ static int mvebu_devs_debug_show(struct
u64 wbase, wremap;
u32 wsize;
u8 wtarget, wattr;
- int enabled, i;
- const char *name;
+ int enabled;
mvebu_mbus_read_window(mbus, win,
&enabled, &wbase, &wsize,
@@ -442,18 +413,9 @@ static int mvebu_devs_debug_show(struct
continue;
}
-
- for (i = 0; mbus->soc->map[i].name; i++)
- if (mbus->soc->map[i].target == wtarget &&
- mbus->soc->map[i].attr ==
- (wattr & mbus->soc->map[i].attrmask))
- break;
-
- name = mbus->soc->map[i].name ?: "unknown";
-
- seq_printf(seq, "[%02d] %016llx - %016llx : %s",
+ seq_printf(seq, "[%02d] %016llx - %016llx : %04x:%04x",
win, (unsigned long long)wbase,
- (unsigned long long)(wbase + wsize), name);
+ (unsigned long long)(wbase + wsize), wtarget, wattr);
if (win < mbus->soc->num_remappable_wins) {
seq_printf(seq, " (remap %016llx)\n",
@@ -578,45 +540,12 @@ mvebu_mbus_dove_setup_cpu_target(struct
mvebu_mbus_dram_info.num_cs = cs;
}
-static const struct mvebu_mbus_mapping armada_370_map[] = {
- MAPDEF("bootrom", 1, 0xe0, MAPDEF_NOMASK),
- MAPDEF("devbus-boot", 1, 0x2f, MAPDEF_NOMASK),
- MAPDEF("devbus-cs0", 1, 0x3e, MAPDEF_NOMASK),
- MAPDEF("devbus-cs1", 1, 0x3d, MAPDEF_NOMASK),
- MAPDEF("devbus-cs2", 1, 0x3b, MAPDEF_NOMASK),
- MAPDEF("devbus-cs3", 1, 0x37, MAPDEF_NOMASK),
- MAPDEF("pcie0.0", 4, 0xe0, MAPDEF_PCIMASK),
- MAPDEF("pcie1.0", 8, 0xe0, MAPDEF_PCIMASK),
- {},
-};
-
static const struct mvebu_mbus_soc_data armada_370_mbus_data = {
.num_wins = 20,
.num_remappable_wins = 8,
.win_cfg_offset = armada_370_xp_mbus_win_offset,
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
.show_cpu_target = mvebu_sdram_debug_show_orion,
- .map = armada_370_map,
-};
-
-static const struct mvebu_mbus_mapping armada_xp_map[] = {
- MAPDEF("bootrom", 1, 0x1d, MAPDEF_NOMASK),
- MAPDEF("devbus-boot", 1, 0x2f, MAPDEF_NOMASK),
- MAPDEF("devbus-cs0", 1, 0x3e, MAPDEF_NOMASK),
- MAPDEF("devbus-cs1", 1, 0x3d, MAPDEF_NOMASK),
- MAPDEF("devbus-cs2", 1, 0x3b, MAPDEF_NOMASK),
- MAPDEF("devbus-cs3", 1, 0x37, MAPDEF_NOMASK),
- MAPDEF("pcie0.0", 4, 0xe0, MAPDEF_PCIMASK),
- MAPDEF("pcie0.1", 4, 0xd0, MAPDEF_PCIMASK),
- MAPDEF("pcie0.2", 4, 0xb0, MAPDEF_PCIMASK),
- MAPDEF("pcie0.3", 4, 0x70, MAPDEF_PCIMASK),
- MAPDEF("pcie1.0", 8, 0xe0, MAPDEF_PCIMASK),
- MAPDEF("pcie1.1", 8, 0xd0, MAPDEF_PCIMASK),
- MAPDEF("pcie1.2", 8, 0xb0, MAPDEF_PCIMASK),
- MAPDEF("pcie1.3", 8, 0x70, MAPDEF_PCIMASK),
- MAPDEF("pcie2.0", 4, 0xf0, MAPDEF_PCIMASK),
- MAPDEF("pcie3.0", 8, 0xf0, MAPDEF_PCIMASK),
- {},
};
static const struct mvebu_mbus_soc_data armada_xp_mbus_data = {
@@ -625,15 +554,6 @@ static const struct mvebu_mbus_soc_data
.win_cfg_offset = armada_370_xp_mbus_win_offset,
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
.show_cpu_target = mvebu_sdram_debug_show_orion,
- .map = armada_xp_map,
-};
-
-static const struct mvebu_mbus_mapping kirkwood_map[] = {
- MAPDEF("pcie0.0", 4, 0xe0, MAPDEF_PCIMASK),
- MAPDEF("pcie1.0", 4, 0xd0, MAPDEF_PCIMASK),
- MAPDEF("sram", 3, 0x01, MAPDEF_NOMASK),
- MAPDEF("nand", 1, 0x2f, MAPDEF_NOMASK),
- {},
};
static const struct mvebu_mbus_soc_data kirkwood_mbus_data = {
@@ -642,16 +562,6 @@ static const struct mvebu_mbus_soc_data
.win_cfg_offset = orion_mbus_win_offset,
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
.show_cpu_target = mvebu_sdram_debug_show_orion,
- .map = kirkwood_map,
-};
-
-static const struct mvebu_mbus_mapping dove_map[] = {
- MAPDEF("pcie0.0", 0x4, 0xe0, MAPDEF_PCIMASK),
- MAPDEF("pcie1.0", 0x8, 0xe0, MAPDEF_PCIMASK),
- MAPDEF("cesa", 0x3, 0x01, MAPDEF_NOMASK),
- MAPDEF("bootrom", 0x1, 0xfd, MAPDEF_NOMASK),
- MAPDEF("scratchpad", 0xd, 0x0, MAPDEF_NOMASK),
- {},
};
static const struct mvebu_mbus_soc_data dove_mbus_data = {
@@ -660,18 +570,6 @@ static const struct mvebu_mbus_soc_data
.win_cfg_offset = orion_mbus_win_offset,
.setup_cpu_target = mvebu_mbus_dove_setup_cpu_target,
.show_cpu_target = mvebu_sdram_debug_show_dove,
- .map = dove_map,
-};
-
-static const struct mvebu_mbus_mapping orion5x_map[] = {
- MAPDEF("pcie0.0", 4, 0x51, MAPDEF_ORIONPCIMASK),
- MAPDEF("pci0.0", 3, 0x51, MAPDEF_ORIONPCIMASK),
- MAPDEF("devbus-boot", 1, 0x0f, MAPDEF_NOMASK),
- MAPDEF("devbus-cs0", 1, 0x1e, MAPDEF_NOMASK),
- MAPDEF("devbus-cs1", 1, 0x1d, MAPDEF_NOMASK),
- MAPDEF("devbus-cs2", 1, 0x1b, MAPDEF_NOMASK),
- MAPDEF("sram", 0, 0x00, MAPDEF_NOMASK),
- {},
};
/*
@@ -684,7 +582,6 @@ static const struct mvebu_mbus_soc_data
.win_cfg_offset = orion_mbus_win_offset,
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
.show_cpu_target = mvebu_sdram_debug_show_orion,
- .map = orion5x_map,
};
static const struct mvebu_mbus_soc_data orion5x_2win_mbus_data = {
@@ -693,21 +590,6 @@ static const struct mvebu_mbus_soc_data
.win_cfg_offset = orion_mbus_win_offset,
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
.show_cpu_target = mvebu_sdram_debug_show_orion,
- .map = orion5x_map,
-};
-
-static const struct mvebu_mbus_mapping mv78xx0_map[] = {
- MAPDEF("pcie0.0", 4, 0xe0, MAPDEF_PCIMASK),
- MAPDEF("pcie0.1", 4, 0xd0, MAPDEF_PCIMASK),
- MAPDEF("pcie0.2", 4, 0xb0, MAPDEF_PCIMASK),
- MAPDEF("pcie0.3", 4, 0x70, MAPDEF_PCIMASK),
- MAPDEF("pcie1.0", 8, 0xe0, MAPDEF_PCIMASK),
- MAPDEF("pcie1.1", 8, 0xd0, MAPDEF_PCIMASK),
- MAPDEF("pcie1.2", 8, 0xb0, MAPDEF_PCIMASK),
- MAPDEF("pcie1.3", 8, 0x70, MAPDEF_PCIMASK),
- MAPDEF("pcie2.0", 4, 0xf0, MAPDEF_PCIMASK),
- MAPDEF("pcie3.0", 8, 0xf0, MAPDEF_PCIMASK),
- {},
};
static const struct mvebu_mbus_soc_data mv78xx0_mbus_data = {
@@ -716,7 +598,6 @@ static const struct mvebu_mbus_soc_data
.win_cfg_offset = mv78xx0_mbus_win_offset,
.setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
.show_cpu_target = mvebu_sdram_debug_show_orion,
- .map = mv78xx0_map,
};
/*
@@ -895,33 +776,16 @@ static int __init mbus_dt_setup_win(stru
u32 base, u32 size,
u8 target, u8 attr)
{
- const struct mvebu_mbus_mapping *map = mbus->soc->map;
- const char *name;
- int i;
-
- /* Search for a suitable window in the existing mappings */
- for (i = 0; map[i].name; i++)
- if (map[i].target == target &&
- map[i].attr == (attr & map[i].attrmask))
- break;
-
- name = map[i].name;
- if (!name) {
- pr_err("window 0x%x:0x%x is unknown, skipping\n",
- target, attr);
- return -EINVAL;
- }
-
if (!mvebu_mbus_window_conflicts(mbus, base, size, target, attr)) {
- pr_err("cannot add window '%s', conflicts with another window\n",
- name);
+ pr_err("cannot add window '%04x:%04x', conflicts with another window\n",
+ target, attr);
return -EBUSY;
}
if (mvebu_mbus_alloc_window(mbus, base, size, MVEBU_MBUS_NO_REMAP,
target, attr)) {
- pr_err("cannot add window '%s', too many windows\n",
- name);
+ pr_err("cannot add window '%04x:%04x', too many windows\n",
+ target, attr);
return -ENOMEM;
}
return 0;

35
target/linux/mvebu/patches-3.10/0051-bus-mvebu-mbus-Update-main-description.patch Normal file
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@ -0,0 +1,35 @@
From 8f14bc2a883316dfd95383900c61d7d9183e8eaf Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 5 Jul 2013 14:54:25 +0200
Subject: [PATCH 051/203] bus: mvebu-mbus: Update main description
After replacing the MBus name-based by the new ID-based API
let's fix the general description of the driver at the beginning
of the file.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/bus/mvebu-mbus.c | 10 +++-------
1 file changed, 3 insertions(+), 7 deletions(-)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -35,13 +35,9 @@
*
* - Provides an API for platform code or device drivers to
* dynamically add or remove address decoding windows for the CPU ->
- * device accesses. This API is mvebu_mbus_add_window(),
- * mvebu_mbus_add_window_remap_flags() and
- * mvebu_mbus_del_window(). Since the (target, attribute) values
- * differ from one SoC family to another, the API uses a 'const char
- * *' string to identify devices, and this driver is responsible for
- * knowing the mapping between the name of a device and its
- * corresponding (target, attribute) in the current SoC family.
+ * device accesses. This API is mvebu_mbus_add_window_by_id(),
+ * mvebu_mbus_add_window_remap_by_id() and
+ * mvebu_mbus_del_window().
*
* - Provides a debugfs interface in /sys/kernel/debug/mvebu-mbus/ to
* see the list of CPU -> SDRAM windows and their configuration

48
target/linux/mvebu/patches-3.10/0052-bus-mvebu-mbus-Factorize-Armada-370-XP-data-structur.patch Normal file
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@ -0,0 +1,48 @@
From 2c8f0b1810ff9cd45ed2055441b4c43afcfb7d2a Mon Sep 17 00:00:00 2001
From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Date: Fri, 5 Jul 2013 14:54:26 +0200
Subject: [PATCH 052/203] bus: mvebu-mbus: Factorize Armada 370/XP data
structures
These structures were only different in the mapping tables.
Now that those tables have been removed, it doesn't make any sense
to keep different structures.
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Tested-by: Andrew Lunn <andrew@lunn.ch>
Tested-by: Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
---
drivers/bus/mvebu-mbus.c | 14 +++-----------
1 file changed, 3 insertions(+), 11 deletions(-)
--- a/drivers/bus/mvebu-mbus.c
+++ b/drivers/bus/mvebu-mbus.c
@@ -536,15 +536,7 @@ mvebu_mbus_dove_setup_cpu_target(struct
mvebu_mbus_dram_info.num_cs = cs;
}
-static const struct mvebu_mbus_soc_data armada_370_mbus_data = {
- .num_wins = 20,
- .num_remappable_wins = 8,
- .win_cfg_offset = armada_370_xp_mbus_win_offset,
- .setup_cpu_target = mvebu_mbus_default_setup_cpu_target,
- .show_cpu_target = mvebu_sdram_debug_show_orion,
-};
-
-static const struct mvebu_mbus_soc_data armada_xp_mbus_data = {
+static const struct mvebu_mbus_soc_data armada_370_xp_mbus_data = {
.num_wins = 20,
.num_remappable_wins = 8,
.win_cfg_offset = armada_370_xp_mbus_win_offset,
@@ -604,9 +596,9 @@ static const struct mvebu_mbus_soc_data
*/
static const struct of_device_id of_mvebu_mbus_ids[] = {
{ .compatible = "marvell,armada370-mbus",
- .data = &armada_370_mbus_data, },
+ .data = &armada_370_xp_mbus_data, },
{ .compatible = "marvell,armadaxp-mbus",
- .data = &armada_xp_mbus_data, },
+ .data = &armada_370_xp_mbus_data, },
{ .compatible = "marvell,kirkwood-mbus",
.data = &kirkwood_mbus_data, },
{ .compatible = "marvell,dove-mbus",