mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 07:22:33 +00:00
f5919b65d4
Patch generation process: - rebase rpi/rpi-4.14.y on v4.14.89 from linux-stable - git format-patch v4.14.89 Patches skipped during rebase: - lan78xx: Read MAC address from DT if present - lan78xx: Enable LEDs and auto-negotiation - Revert "softirq: Let ksoftirqd do its job" - sc16is7xx: Fix for multi-channel stall - lan78xx: Ignore DT MAC address if already valid - lan78xx: Simple patch to prevent some crashes - tcp_write_queue_purge clears all the SKBs in the write queue - Revert "lan78xx: Simple patch to prevent some crashes" - lan78xx: Connect phy early - Arm: mm: ftrace: Only set text back to ro after kernel has been marked ro - Revert "Revert "softirq: Let ksoftirqd do its job"" - ASoC: cs4265: SOC_SINGLE register value error fix - Revert "ASoC: cs4265: SOC_SINGLE register value error fix" - Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends" - Revert "Revert "net: pskb_trim_rcsum() and CHECKSUM_COMPLETE are friends"" Patches dropped after rebase: - net: Add non-mainline source for rtl8192cu wlan - net: Fix rtl8192cu build errors on other platforms - brcm: adds support for BCM43341 wifi - brcmfmac: Mute expected startup 'errors' - ARM64: Fix build break for RTL8187/RTL8192CU wifi - ARM64: Enable RTL8187/RTL8192CU wifi in build config - This is the driver for Sony CXD2880 DVB-T2/T tuner + demodulator - brcmfmac: add CLM download support - brcmfmac: request_firmware_direct is quieter - Sets the BCDC priority to constant 0 - brcmfmac: Disable ARP offloading when promiscuous - brcmfmac: Avoid possible out-of-bounds read - brcmfmac: Delete redundant length check - net: rtl8192cu: Normalize indentation - net: rtl8192cu: Fix implicit fallthrough warnings - Revert "Sets the BCDC priority to constant 0" - media: cxd2880: Bump to match 4.18.y version - media: cxd2880-spi: Bump to match 4.18.y version - Revert "mm: alloc_contig: re-allow CMA to compact FS pages" - Revert "Revert "mm: alloc_contig: re-allow CMA to compact FS pages"" - cxd2880: CXD2880_SPI_DRV should select DVB_CXD2880 with MEDIA_SUBDRV_AUTOSELECT - 950-0421-HID-hid-bigbenff-driver-for-BigBen-Interactive-PS3OF.patch - 950-0453-Add-hid-bigbenff-to-list-of-have_special_driver-for-.patch Make I2C built-in instead of modular as in upstream defconfig; also the easiest way to get MFD_ARIZONA enabled, which is required by kmod-sound-soc-rpi-cirrus. Add missing compatible strings from 4.9/960-add-rasbperrypi-compatible.patch, using upstream names for compute modules. Add extra patch to enable the LEDs on lan78xx. Compile-tested: bcm2708, bcm2709, bcm2710 (with CONFIG_ALL_KMODS=y) Runtime-tested: bcm2708, bcm2710 Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
129 lines
4.2 KiB
Diff
129 lines
4.2 KiB
Diff
From 8edeb93cec4b7ca6771348fafbf4676920b052c9 Mon Sep 17 00:00:00 2001
|
|
From: Phil Elwell <phil@raspberrypi.org>
|
|
Date: Mon, 16 Jul 2018 14:40:13 +0100
|
|
Subject: [PATCH 362/454] dwc-otg: FIQ: Fix "bad mode in data abort handler"
|
|
|
|
Create a semi-static mapping for the USB registers early in the boot
|
|
process, before additional kernel threads are started, so all threads
|
|
will have the mappings from the start. This avoids the need for
|
|
data aborts to lazily update them.
|
|
|
|
See: https://github.com/raspberrypi/linux/issues/2450
|
|
|
|
Signed-off-by: Floris Bos <bos@je-eigen-domein.nl>
|
|
---
|
|
arch/arm/mach-bcm/board_bcm2835.c | 69 +++++++++++++++++++++++
|
|
drivers/usb/host/dwc_otg/dwc_otg_driver.c | 2 +-
|
|
2 files changed, 70 insertions(+), 1 deletion(-)
|
|
|
|
--- a/arch/arm/mach-bcm/board_bcm2835.c
|
|
+++ b/arch/arm/mach-bcm/board_bcm2835.c
|
|
@@ -15,6 +15,7 @@
|
|
#include <linux/init.h>
|
|
#include <linux/irqchip.h>
|
|
#include <linux/of_address.h>
|
|
+#include <linux/of_fdt.h>
|
|
#include <linux/clk/bcm2835.h>
|
|
#include <asm/system_info.h>
|
|
|
|
@@ -24,6 +25,9 @@
|
|
#include "platsmp.h"
|
|
#include <linux/dma-mapping.h>
|
|
|
|
+#define BCM2835_USB_VIRT_BASE 0xf0980000
|
|
+#define BCM2835_USB_VIRT_MPHI 0xf0006000
|
|
+
|
|
static void __init bcm2835_init(void)
|
|
{
|
|
struct device_node *np = of_find_node_by_path("/system");
|
|
@@ -44,6 +48,70 @@ static void __init bcm2835_init_early(vo
|
|
init_dma_coherent_pool_size(SZ_1M);
|
|
}
|
|
|
|
+/*
|
|
+ * We need to map registers that are going to be accessed by the FIQ
|
|
+ * very early, before any kernel threads are spawned. Because if done
|
|
+ * later, the mapping tables are not updated instantly but lazily upon
|
|
+ * first access through a data abort handler. While that is fine
|
|
+ * when executing regular kernel code, if the first access in a specific
|
|
+ * thread happens while running FIQ code this will result in a panic.
|
|
+ *
|
|
+ * For more background see the following old mailing list thread:
|
|
+ * https://www.spinics.net/lists/arm-kernel/msg325250.html
|
|
+ */
|
|
+static int __init bcm2835_map_usb(unsigned long node, const char *uname,
|
|
+ int depth, void *data)
|
|
+{
|
|
+ struct map_desc map[2];
|
|
+ const __be32 *reg;
|
|
+ int len;
|
|
+ unsigned long p2b_offset = *((unsigned long *) data);
|
|
+
|
|
+ if (!of_flat_dt_is_compatible(node, "brcm,bcm2708-usb"))
|
|
+ return 0;
|
|
+ reg = of_get_flat_dt_prop(node, "reg", &len);
|
|
+ if (!reg || len != (sizeof(unsigned long) * 4))
|
|
+ return 0;
|
|
+
|
|
+ /* Use information about the physical addresses of the
|
|
+ * registers from the device tree, but use legacy
|
|
+ * iotable_init() static mapping function to map them,
|
|
+ * as ioremap() is not functional at this stage in boot.
|
|
+ */
|
|
+ map[0].virtual = (unsigned long) BCM2835_USB_VIRT_BASE;
|
|
+ map[0].pfn = __phys_to_pfn(be32_to_cpu(reg[0]) - p2b_offset);
|
|
+ map[0].length = be32_to_cpu(reg[1]);
|
|
+ map[0].type = MT_DEVICE;
|
|
+ map[1].virtual = (unsigned long) BCM2835_USB_VIRT_MPHI;
|
|
+ map[1].pfn = __phys_to_pfn(be32_to_cpu(reg[2]) - p2b_offset);
|
|
+ map[1].length = be32_to_cpu(reg[3]);
|
|
+ map[1].type = MT_DEVICE;
|
|
+ iotable_init(map, 2);
|
|
+
|
|
+ return 1;
|
|
+}
|
|
+
|
|
+static void __init bcm2835_map_io(void)
|
|
+{
|
|
+ const __be32 *ranges;
|
|
+ int soc, len;
|
|
+ unsigned long p2b_offset;
|
|
+
|
|
+ debug_ll_io_init();
|
|
+
|
|
+ /* Find out how to map bus to physical address first from soc/ranges */
|
|
+ soc = of_get_flat_dt_subnode_by_name(of_get_flat_dt_root(), "soc");
|
|
+ if (soc < 0)
|
|
+ return;
|
|
+ ranges = of_get_flat_dt_prop(soc, "ranges", &len);
|
|
+ if (!ranges || len < (sizeof(unsigned long) * 3))
|
|
+ return;
|
|
+ p2b_offset = be32_to_cpu(ranges[0]) - be32_to_cpu(ranges[1]);
|
|
+
|
|
+ /* Now search for bcm2708-usb node in device tree */
|
|
+ of_scan_flat_dt(bcm2835_map_usb, &p2b_offset);
|
|
+}
|
|
+
|
|
static const char * const bcm2835_compat[] = {
|
|
#ifdef CONFIG_ARCH_MULTI_V6
|
|
"brcm,bcm2835",
|
|
@@ -56,6 +124,7 @@ static const char * const bcm2835_compat
|
|
};
|
|
|
|
DT_MACHINE_START(BCM2835, "BCM2835")
|
|
+ .map_io = bcm2835_map_io,
|
|
.init_machine = bcm2835_init,
|
|
.init_early = bcm2835_init_early,
|
|
.dt_compat = bcm2835_compat,
|
|
--- a/drivers/usb/host/dwc_otg/dwc_otg_driver.c
|
|
+++ b/drivers/usb/host/dwc_otg/dwc_otg_driver.c
|
|
@@ -837,7 +837,7 @@ static int dwc_otg_driver_probe(
|
|
retval = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
- dev_dbg(&_dev->dev, "base=0x%08x\n",
|
|
+ dev_info(&_dev->dev, "base=0x%08x\n",
|
|
(unsigned)dwc_otg_device->os_dep.base);
|
|
#endif
|
|
|