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brcm63xx: fix spi flash setup on (at least) some reference boards

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CFE seems to leave the SPI flash mapping in an invalid state after
loading the kernel on some reference boards, so fix it up on boot.

Signed-off-by: Jonas Gorski <jogo@openwrt.org>

SVN-Revision: 39273
This commit is contained in:
Jonas Gorski 2014-01-13 12:14:12 +00:00
parent 4aa92df0d8
commit 1315058bda
11 changed files with 194 additions and 168 deletions
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4
target/linux/brcm63xx/patches-3.10/343-MIPS-BCM63XX-add-PCIe-support-for-BCM6318.patch
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@ -79,7 +79,7 @@ Subject: [PATCH 53/53] MIPS: BCM63XX: add PCIe support for BCM6318
#define BCM_PCIE_MEM_END_PA_6328 (BCM_PCIE_MEM_BASE_PA_6328 + \
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_regs.h
@@ -1661,6 +1661,17 @@
@@ -1662,6 +1662,17 @@
* _REG relative to RSET_PCIE
*************************************************************************/
@ -97,7 +97,7 @@ Subject: [PATCH 53/53] MIPS: BCM63XX: add PCIe support for BCM6318
#define PCIE_CONFIG2_REG 0x408
#define CONFIG2_BAR1_SIZE_EN 1
#define CONFIG2_BAR1_SIZE_MASK 0xf
@@ -1706,7 +1717,54 @@
@@ -1707,7 +1718,54 @@
#define PCIE_RC_INT_C (1 << 2)
#define PCIE_RC_INT_D (1 << 3)

74
target/linux/brcm63xx/patches-3.10/344-MIPS-BCM63XX-detect-flash-type-early-and-store-the-r.patch Normal file
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@ -0,0 +1,74 @@
From 9a97177b907330971aa7bf41855fafc2602e1c18 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Sun, 22 Dec 2013 12:26:57 +0100
Subject: [PATCH 51/56] MIPS: BCM63XX: detect flash type early and store the
result
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
arch/mips/bcm63xx/dev-flash.c | 10 +++++++---
arch/mips/bcm63xx/prom.c | 4 ++++
arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h | 2 ++
3 files changed, 13 insertions(+), 3 deletions(-)
--- a/arch/mips/bcm63xx/dev-flash.c
+++ b/arch/mips/bcm63xx/dev-flash.c
@@ -22,6 +22,8 @@
#include <bcm63xx_regs.h>
#include <bcm63xx_io.h>
+static int flash_type;
+
static struct mtd_partition mtd_partitions[] = {
{
.name = "cfe",
@@ -108,13 +110,15 @@ static int __init bcm63xx_detect_flash_t
}
}
+void __init bcm63xx_flash_detect(void)
+{
+ flash_type = bcm63xx_detect_flash_type();
+}
+
int __init bcm63xx_flash_register(void)
{
- int flash_type;
u32 val;
- flash_type = bcm63xx_detect_flash_type();
-
switch (flash_type) {
case BCM63XX_FLASH_TYPE_PARALLEL:
/* read base address of boot chip select (0) */
--- a/arch/mips/bcm63xx/prom.c
+++ b/arch/mips/bcm63xx/prom.c
@@ -18,6 +18,7 @@
#include <bcm63xx_io.h>
#include <bcm63xx_regs.h>
#include <bcm63xx_gpio.h>
+#include <bcm63xx_dev_flash.h>
void __init prom_init(void)
{
@@ -56,6 +57,9 @@ void __init prom_init(void)
/* register gpiochip */
bcm63xx_gpio_init();
+ /* detect and setup flash access */
+ bcm63xx_flash_detect();
+
/* do low level board init */
board_prom_init();
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
@@ -7,6 +7,8 @@ enum {
BCM63XX_FLASH_TYPE_NAND,
};
+void bcm63xx_flash_detect(void);
+
int __init bcm63xx_flash_register(void);
#endif /* __BCM63XX_FLASH_H */

63
target/linux/brcm63xx/patches-3.10/345-MIPS-BCM63XX-fixup-mapped-SPI-flash-access-on-boot.patch Normal file
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@ -0,0 +1,63 @@
From 1cacd0f7b0d35f8e3d3f8a69ecb3b5e436d6b9e8 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Sun, 22 Dec 2013 13:25:25 +0100
Subject: [PATCH 52/56] MIPS: BCM63XX: fixup mapped SPI flash access on boot
Some bootloaders leave the flash access in an invalid state with dual
read enabled; fix it by disabling it and falling back to simple fast
reads.
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
arch/mips/bcm63xx/dev-flash.c | 36 ++++++++++++++++++++++++++++++++++++
1 file changed, 36 insertions(+)
--- a/arch/mips/bcm63xx/dev-flash.c
+++ b/arch/mips/bcm63xx/dev-flash.c
@@ -110,9 +110,46 @@ static int __init bcm63xx_detect_flash_t
}
}
+#define HSSPI_FLASH_CTRL_REG 0x14
+#define FLASH_CTRL_READ_OPCODE_MASK 0xff
+#define FLASH_CTRL_ADDR_BYTES_MASK (0x3 << 8)
+#define FLASH_CTRL_ADDR_BYTES_2 (0 << 8)
+#define FLASH_CTRL_ADDR_BYTES_3 (1 << 8)
+#define FLASH_CTRL_ADDR_BYTES_4 (2 << 8)
+#define FLASH_CTRL_MB_EN (1 << 23)
+
void __init bcm63xx_flash_detect(void)
{
flash_type = bcm63xx_detect_flash_type();
+
+ /* reduce flash mapping to single i/o reads for safety */
+ if (flash_type == BCM63XX_FLASH_TYPE_SERIAL &&
+ (BCMCPU_IS_6318() || BCMCPU_IS_6328() || BCMCPU_IS_6362() ||
+ BCMCPU_IS_63268())) {
+ u32 val = bcm_rset_readl(RSET_HSSPI, HSSPI_FLASH_CTRL_REG);
+
+ if (!(val & FLASH_CTRL_MB_EN))
+ return;
+
+ val &= ~FLASH_CTRL_MB_EN;
+ val &= ~FLASH_CTRL_READ_OPCODE_MASK;
+
+ switch (val & FLASH_CTRL_ADDR_BYTES_MASK) {
+ case FLASH_CTRL_ADDR_BYTES_3:
+ val |= 0x0b; /* OPCODE_FAST_READ */
+ break;
+ case FLASH_CTRL_ADDR_BYTES_4:
+ val |= 0x0c; /* OPCODE_FAST_READ_4B */
+ break;
+ case FLASH_CTRL_ADDR_BYTES_2:
+ default:
+ pr_warn("unsupported address byte mode (%x), not fixing up\n",
+ val & FLASH_CTRL_ADDR_BYTES_MASK);
+ return;
+ }
+
+ bcm_rset_writel(RSET_HSSPI, val, HSSPI_FLASH_CTRL_REG);
+ }
}
int __init bcm63xx_flash_register(void)

2
target/linux/brcm63xx/patches-3.10/400-bcm963xx_flashmap.patch
View File

@ -12,7 +12,7 @@ Signed-off-by: Axel Gembe <ago@bastart.eu.org>
--- a/arch/mips/bcm63xx/dev-flash.c
+++ b/arch/mips/bcm63xx/dev-flash.c
@@ -30,7 +30,7 @@ static struct mtd_partition mtd_partitio
@@ -32,7 +32,7 @@ static struct mtd_partition mtd_partitio
}
};

12
target/linux/brcm63xx/patches-3.10/411-MIPS-BCM63XX-Register-SPI-flash-if-present.patch
View File

@ -24,7 +24,7 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
#include <bcm63xx_regs.h>
#include <bcm63xx_io.h>
@@ -55,6 +58,21 @@ static struct platform_device mtd_dev =
@@ -57,6 +60,21 @@ static struct platform_device mtd_dev =
},
};
@ -46,7 +46,7 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
static int __init bcm63xx_detect_flash_type(void)
{
u32 val;
@@ -62,9 +80,15 @@ static int __init bcm63xx_detect_flash_t
@@ -64,9 +82,15 @@ static int __init bcm63xx_detect_flash_t
switch (bcm63xx_get_cpu_id()) {
case BCM6318_CPU_ID:
/* only support serial flash */
@ -62,7 +62,7 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
if (val & STRAPBUS_6328_BOOT_SEL_SERIAL)
return BCM63XX_FLASH_TYPE_SERIAL;
else
@@ -83,12 +107,20 @@ static int __init bcm63xx_detect_flash_t
@@ -85,12 +109,20 @@ static int __init bcm63xx_detect_flash_t
return BCM63XX_FLASH_TYPE_SERIAL;
case BCM6362_CPU_ID:
val = bcm_misc_readl(MISC_STRAPBUS_6362_REG);
@ -83,7 +83,7 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
switch (val & STRAPBUS_6368_BOOT_SEL_MASK) {
case STRAPBUS_6368_BOOT_SEL_NAND:
return BCM63XX_FLASH_TYPE_NAND;
@@ -99,6 +131,11 @@ static int __init bcm63xx_detect_flash_t
@@ -101,6 +133,11 @@ static int __init bcm63xx_detect_flash_t
}
case BCM63268_CPU_ID:
val = bcm_misc_readl(MISC_STRAPBUS_63268_REG);
@ -95,7 +95,7 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
if (val & STRAPBUS_63268_BOOT_SEL_SERIAL)
return BCM63XX_FLASH_TYPE_SERIAL;
else
@@ -126,8 +163,15 @@ int __init bcm63xx_flash_register(void)
@@ -167,8 +204,15 @@ int __init bcm63xx_flash_register(void)
return platform_device_register(&mtd_dev);
case BCM63XX_FLASH_TYPE_SERIAL:
@ -123,7 +123,7 @@ Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
#define STRAPBUS_6368_BOOT_SEL_MASK 0x3
#define STRAPBUS_6368_BOOT_SEL_NAND 0
#define STRAPBUS_6368_BOOT_SEL_SERIAL 1
@@ -1667,6 +1668,7 @@
@@ -1668,6 +1669,7 @@
#define STRAPBUS_63268_FCVO_MASK (0xf << STRAPBUS_63268_FCVO_SHIFT)
#define MISC_STRAPBUS_6328_REG 0x240

31
target/linux/brcm63xx/patches-3.10/415-MIPS-BCM63XX-export-the-attached-flash-type.patch Normal file
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@ -0,0 +1,31 @@
From 066f1e37742ee434496d32a41a9284458de96742 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jogo@openwrt.org>
Date: Mon, 13 Jan 2014 12:12:30 +0100
Subject: [PATCH] MIPS: BCM63XX: export the attached flash type
Signed-off-by: Jonas Gorski <jogo@openwrt.org>
---
arch/mips/bcm63xx/dev-flash.c | 5 +++++
arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h | 2 ++
2 files changed, 7 insertions(+)
--- a/arch/mips/bcm63xx/dev-flash.c
+++ b/arch/mips/bcm63xx/dev-flash.c
@@ -222,3 +222,8 @@ int __init bcm63xx_flash_register(void)
return -ENODEV;
}
}
+
+int bcm63xx_flash_get_type(void)
+{
+ return flash_type;
+}
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
@@ -11,4 +11,6 @@ void bcm63xx_flash_detect(void);
int __init bcm63xx_flash_register(void);
+int bcm63xx_flash_get_type(void);
+
#endif /* __BCM63XX_FLASH_H */

144
target/linux/brcm63xx/patches-3.10/415-MIPS-BCM63XX-store-the-flash-type-in-global-variable.patch
View File

@ -1,144 +0,0 @@
From f888824d352df894ab721a5ca067b0313500efe7 Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jonas.gorski@gmail.com>
Date: Thu, 3 May 2012 12:17:54 +0200
Subject: [PATCH 38/59] MIPS: BCM63XX: store the flash type in global variable
---
arch/mips/bcm63xx/dev-flash.c | 36 +++++++++++++------
.../include/asm/mach-bcm63xx/bcm63xx_dev_flash.h | 2 +
2 files changed, 26 insertions(+), 12 deletions(-)
--- a/arch/mips/bcm63xx/dev-flash.c
+++ b/arch/mips/bcm63xx/dev-flash.c
@@ -25,6 +25,8 @@
#include <bcm63xx_regs.h>
#include <bcm63xx_io.h>
+int bcm63xx_attached_flash = -1;
+
static struct mtd_partition mtd_partitions[] = {
{
.name = "cfe",
@@ -81,7 +83,8 @@ static int __init bcm63xx_detect_flash_t
case BCM6318_CPU_ID:
/* only support serial flash */
bcm63xx_spi_flash_info[0].max_speed_hz = 62500000;
- return BCM63XX_FLASH_TYPE_SERIAL;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL;
+ break;
case BCM6328_CPU_ID:
val = bcm_misc_readl(MISC_STRAPBUS_6328_REG);
if (val & STRAPBUS_6328_HSSPI_CLK_FAST)
@@ -90,21 +93,24 @@ static int __init bcm63xx_detect_flash_t
bcm63xx_spi_flash_info[0].max_speed_hz = 16666667;
if (val & STRAPBUS_6328_BOOT_SEL_SERIAL)
- return BCM63XX_FLASH_TYPE_SERIAL;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL;
else
- return BCM63XX_FLASH_TYPE_NAND;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_NAND;
+ break;
case BCM6338_CPU_ID:
case BCM6345_CPU_ID:
case BCM6348_CPU_ID:
/* no way to auto detect so assume parallel */
- return BCM63XX_FLASH_TYPE_PARALLEL;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_PARALLEL;
+ break;
case BCM3368_CPU_ID:
case BCM6358_CPU_ID:
val = bcm_gpio_readl(GPIO_STRAPBUS_REG);
if (val & STRAPBUS_6358_BOOT_SEL_PARALLEL)
- return BCM63XX_FLASH_TYPE_PARALLEL;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_PARALLEL;
else
- return BCM63XX_FLASH_TYPE_SERIAL;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL;
+ break;
case BCM6362_CPU_ID:
val = bcm_misc_readl(MISC_STRAPBUS_6362_REG);
if (val & STRAPBUS_6362_HSSPI_CLK_FAST)
@@ -113,9 +119,10 @@ static int __init bcm63xx_detect_flash_t
bcm63xx_spi_flash_info[0].max_speed_hz = 20000000;
if (val & STRAPBUS_6362_BOOT_SEL_SERIAL)
- return BCM63XX_FLASH_TYPE_SERIAL;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL;
else
- return BCM63XX_FLASH_TYPE_NAND;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_NAND;
+ break;
case BCM6368_CPU_ID:
val = bcm_gpio_readl(GPIO_STRAPBUS_REG);
if (val & STRAPBUS_6368_SPI_CLK_FAST)
@@ -123,11 +130,16 @@ static int __init bcm63xx_detect_flash_t
switch (val & STRAPBUS_6368_BOOT_SEL_MASK) {
case STRAPBUS_6368_BOOT_SEL_NAND:
- return BCM63XX_FLASH_TYPE_NAND;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_NAND;
+ break;
case STRAPBUS_6368_BOOT_SEL_SERIAL:
- return BCM63XX_FLASH_TYPE_SERIAL;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL;
+ break;
case STRAPBUS_6368_BOOT_SEL_PARALLEL:
- return BCM63XX_FLASH_TYPE_PARALLEL;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_PARALLEL;
+ break;
+ default:
+ return -EINVAL;
}
case BCM63268_CPU_ID:
val = bcm_misc_readl(MISC_STRAPBUS_63268_REG);
@@ -137,22 +149,24 @@ static int __init bcm63xx_detect_flash_t
bcm63xx_spi_flash_info[0].max_speed_hz = 20000000;
if (val & STRAPBUS_63268_BOOT_SEL_SERIAL)
- return BCM63XX_FLASH_TYPE_SERIAL;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_SERIAL;
else
- return BCM63XX_FLASH_TYPE_NAND;
+ bcm63xx_attached_flash = BCM63XX_FLASH_TYPE_NAND;
default:
return -EINVAL;
}
+
+ return 0;
}
int __init bcm63xx_flash_register(void)
{
- int flash_type;
u32 val;
- flash_type = bcm63xx_detect_flash_type();
- switch (flash_type) {
+ bcm63xx_detect_flash_type();
+
+ switch (bcm63xx_attached_flash) {
case BCM63XX_FLASH_TYPE_PARALLEL:
/* read base address of boot chip select (0) */
val = bcm_mpi_readl(MPI_CSBASE_REG(0));
@@ -177,7 +191,7 @@ int __init bcm63xx_flash_register(void)
return -ENODEV;
default:
pr_err("flash detection failed for BCM%x: %d\n",
- bcm63xx_get_cpu_id(), flash_type);
+ bcm63xx_get_cpu_id(), bcm63xx_attached_flash);
return -ENODEV;
}
}
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
@@ -7,6 +7,8 @@ enum {
BCM63XX_FLASH_TYPE_NAND,
};
+extern int bcm63xx_attached_flash;
+
int __init bcm63xx_flash_register(void);
#endif /* __BCM63XX_FLASH_H */

2
target/linux/brcm63xx/patches-3.10/416-BCM63XX-add-a-fixup-for-ath9k-devices.patch
View File

@ -88,7 +88,7 @@ Subject: [PATCH 61/72] BCM63XX: add a fixup for ath9k devices
+ addr &= MPI_CSBASE_BASE_MASK;
+ }
+
+ switch (bcm63xx_attached_flash) {
+ switch (bcm63xx_flash_get_type()) {
+ case BCM63XX_FLASH_TYPE_PARALLEL:
+ memcpy(eeprom, (void *)KSEG1ADDR(addr + offset), ATH9K_PLAT_EEP_MAX_WORDS * sizeof(u16));
+ return eeprom;

17
target/linux/brcm63xx/patches-3.10/418-MIPS-BCM63XX-pass-caldata-info-to-flash.patch
View File

@ -46,8 +46,8 @@ Subject: [PATCH 69/80] MIPS: BCM63XX: pass caldata info to flash
};
static struct spi_board_info bcm63xx_spi_flash_info[] = {
@@ -159,10 +163,13 @@ static int __init bcm63xx_detect_flash_t
return 0;
@@ -189,9 +193,13 @@ void __init bcm63xx_flash_detect(void)
}
}
-int __init bcm63xx_flash_register(void)
@ -55,12 +55,12 @@ Subject: [PATCH 69/80] MIPS: BCM63XX: pass caldata info to flash
{
u32 val;
+ unsigned int i;
+
+ for (i = 0; i < num_caldata; i++)
+ bcm63xx_parser_data.caldata[i] = caldata[i].caldata_offset;
bcm63xx_detect_flash_type();
switch (flash_type) {
case BCM63XX_FLASH_TYPE_PARALLEL:
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
@@ -1,6 +1,8 @@
@ -72,11 +72,12 @@ Subject: [PATCH 69/80] MIPS: BCM63XX: pass caldata info to flash
enum {
BCM63XX_FLASH_TYPE_PARALLEL,
BCM63XX_FLASH_TYPE_SERIAL,
@@ -9,6 +11,6 @@ enum {
@@ -9,7 +11,7 @@ enum {
extern int bcm63xx_attached_flash;
void bcm63xx_flash_detect(void);
-int __init bcm63xx_flash_register(void);
+int __init bcm63xx_flash_register(int num_caldata, struct ath9k_caldata *caldata);
#endif /* __BCM63XX_FLASH_H */
int bcm63xx_flash_get_type(void);

11
target/linux/brcm63xx/patches-3.10/422-BCM63XX-add-a-fixup-for-rt2x00-devices.patch
View File

@ -61,8 +61,8 @@ Subject: [PATCH 72/72] 446-BCM63XX-add-a-fixup-for-rt2x00-devices
}
--- a/arch/mips/bcm63xx/dev-flash.c
+++ b/arch/mips/bcm63xx/dev-flash.c
@@ -163,7 +163,7 @@ static int __init bcm63xx_detect_flash_t
return 0;
@@ -193,7 +193,7 @@ void __init bcm63xx_flash_detect(void)
}
}
-int __init bcm63xx_flash_register(int num_caldata, struct ath9k_caldata *caldata)
@ -147,14 +147,15 @@ Subject: [PATCH 72/72] 446-BCM63XX-add-a-fixup-for-rt2x00-devices
+
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_flash.h
@@ -11,6 +11,6 @@ enum {
@@ -11,7 +11,7 @@ enum {
extern int bcm63xx_attached_flash;
void bcm63xx_flash_detect(void);
-int __init bcm63xx_flash_register(int num_caldata, struct ath9k_caldata *caldata);
+int __init bcm63xx_flash_register(int num_caldata, struct bcm63xx_caldata *caldata);
#endif /* __BCM63XX_FLASH_H */
int bcm63xx_flash_get_type(void);
--- a/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
+++ b/arch/mips/include/asm/mach-bcm63xx/board_bcm963xx.h
@@ -9,6 +9,7 @@

2
target/linux/brcm63xx/patches-3.10/511-board_V2500V.patch
View File

@ -107,7 +107,7 @@
#include <bcm63xx_cpu.h>
#include <bcm63xx_dev_flash.h>
#include <bcm63xx_dev_hsspi.h>
@@ -179,6 +180,13 @@ int __init bcm63xx_flash_register(int nu
@@ -207,6 +208,13 @@ int __init bcm63xx_flash_register(int nu
val = bcm_mpi_readl(MPI_CSBASE_REG(0));
val &= MPI_CSBASE_BASE_MASK;