bcm53xx: add initial support for kernel 3.14

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 40564
This commit is contained in:
Hauke Mehrtens 2014-04-23 21:53:50 +00:00
parent 4a7a0d2536
commit d89aa2c3d6
9 changed files with 1039 additions and 0 deletions

View file

@ -0,0 +1,228 @@
CONFIG_ALIGNMENT_TRAP=y
CONFIG_ARCH_BCM=y
CONFIG_ARCH_BCM_5301X=y
# CONFIG_ARCH_BCM_MOBILE is not set
CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
CONFIG_ARCH_HAS_TICK_BROADCAST=y
CONFIG_ARCH_HAVE_CUSTOM_GPIO_H=y
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
CONFIG_ARCH_MULTIPLATFORM=y
# CONFIG_ARCH_MULTI_CPU_AUTO is not set
CONFIG_ARCH_MULTI_V6_V7=y
CONFIG_ARCH_MULTI_V7=y
# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
CONFIG_ARCH_NR_GPIO=0
# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
CONFIG_ARM=y
CONFIG_ARM_APPENDED_DTB=y
# CONFIG_ARM_ATAG_DTB_COMPAT is not set
# CONFIG_ARM_CPU_SUSPEND is not set
CONFIG_ARM_GIC=y
CONFIG_ARM_GLOBAL_TIMER=y
CONFIG_ARM_L1_CACHE_SHIFT=6
CONFIG_ARM_L1_CACHE_SHIFT_6=y
# CONFIG_ARM_LPAE is not set
CONFIG_ARM_NR_BANKS=8
CONFIG_ARM_PATCH_PHYS_VIRT=y
CONFIG_ARM_THUMB=y
# CONFIG_ARM_THUMBEE is not set
CONFIG_ARM_VIRT_EXT=y
CONFIG_ATAGS=y
CONFIG_AUTO_ZRELADDR=y
CONFIG_B53=y
# CONFIG_B53_MMAP_DRIVER is not set
# CONFIG_B53_PHY_DRIVER is not set
CONFIG_B53_SRAB_DRIVER=y
CONFIG_BCMA=y
CONFIG_BCMA_BLOCKIO=y
CONFIG_BCMA_DEBUG=y
CONFIG_BCMA_DRIVER_GMAC_CMN=y
CONFIG_BCMA_HOST_PCI=y
CONFIG_BCMA_HOST_PCI_POSSIBLE=y
CONFIG_BCMA_HOST_SOC=y
# CONFIG_BCM_KONA_WDT is not set
CONFIG_BGMAC=y
CONFIG_CACHE_L2X0=y
CONFIG_CACHE_PL310=y
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_CLKDEV_LOOKUP=y
CONFIG_CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK=y
CONFIG_CLKSRC_OF=y
CONFIG_CLONE_BACKWARDS=y
CONFIG_COMMON_CLK=y
CONFIG_CPU_32v6K=y
CONFIG_CPU_32v7=y
CONFIG_CPU_ABRT_EV7=y
# CONFIG_CPU_BPREDICT_DISABLE is not set
CONFIG_CPU_CACHE_V7=y
CONFIG_CPU_CACHE_VIPT=y
CONFIG_CPU_COPY_V6=y
CONFIG_CPU_CP15=y
CONFIG_CPU_CP15_MMU=y
CONFIG_CPU_HAS_ASID=y
# CONFIG_CPU_ICACHE_DISABLE is not set
CONFIG_CPU_PABRT_V7=y
CONFIG_CPU_RMAP=y
CONFIG_CPU_TLB_V7=y
CONFIG_CPU_V7=y
CONFIG_DCACHE_WORD_ACCESS=y
CONFIG_DEBUG_BCM_5301X=y
# CONFIG_DEBUG_BCM_KONA_UART is not set
CONFIG_DEBUG_INFO=y
CONFIG_DEBUG_LL=y
CONFIG_DEBUG_LL_INCLUDE="debug/pl01x.S"
# CONFIG_DEBUG_LL_UART_8250 is not set
# CONFIG_DEBUG_LL_UART_PL01X is not set
# CONFIG_DEBUG_UART_8250 is not set
CONFIG_DEBUG_UART_PHYS=0x18000300
CONFIG_DEBUG_UART_PL01X=y
CONFIG_DEBUG_UART_VIRT=0xf1000300
CONFIG_DEBUG_UNCOMPRESS=y
CONFIG_DEBUG_USER=y
CONFIG_DTC=y
CONFIG_EARLY_PRINTK=y
CONFIG_FRAME_POINTER=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
CONFIG_GENERIC_IDLE_POLL_SETUP=y
CONFIG_GENERIC_IO=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_GENERIC_NET_UTILS=y
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_SCHED_CLOCK=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_HAS_DMA=y
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT=y
# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_HAVE_ARCH_PFN_VALID=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_ARM_SCU=y
CONFIG_HAVE_ARM_TWD=y
# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
CONFIG_HAVE_BPF_JIT=y
CONFIG_HAVE_CC_STACKPROTECTOR=y
CONFIG_HAVE_CLK=y
CONFIG_HAVE_CLK_PREPARE=y
CONFIG_HAVE_CONTEXT_TRACKING=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_DEBUG_KMEMLEAK=y
CONFIG_HAVE_DMA_API_DEBUG=y
CONFIG_HAVE_DMA_ATTRS=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_GENERIC_DMA_COHERENT=y
CONFIG_HAVE_IDE=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_MEMBLOCK=y
CONFIG_HAVE_NET_DSA=y
CONFIG_HAVE_OPROFILE=y
CONFIG_HAVE_PERF_EVENTS=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_PROC_CPU=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_SMP=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_UID16=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HZ_FIXED=0
CONFIG_HZ_PERIODIC=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_IOMMU_HELPER=y
CONFIG_IRQCHIP=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_IRQ_WORK=y
CONFIG_KTIME_SCALAR=y
CONFIG_MDIO_BOARDINFO=y
CONFIG_MIGHT_HAVE_PCI=y
# CONFIG_MLX5_CORE is not set
CONFIG_MODULES_USE_ELF_REL=y
# CONFIG_MTD_PHYSMAP_OF is not set
CONFIG_MULTI_IRQ_HANDLER=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NET_FLOW_LIMIT=y
CONFIG_NET_RX_BUSY_POLL=y
CONFIG_NO_BOOTMEM=y
CONFIG_NR_CPUS=4
CONFIG_OF=y
CONFIG_OF_ADDRESS=y
CONFIG_OF_EARLY_FLATTREE=y
CONFIG_OF_FLATTREE=y
CONFIG_OF_IRQ=y
CONFIG_OF_MDIO=y
CONFIG_OF_MTD=y
CONFIG_OF_NET=y
CONFIG_OF_PCI=y
CONFIG_OF_PCI_IRQ=y
CONFIG_OLD_SIGACTION=y
CONFIG_OLD_SIGSUSPEND3=y
CONFIG_OUTER_CACHE=y
CONFIG_OUTER_CACHE_SYNC=y
CONFIG_PAGEFLAGS_EXTENDED=y
CONFIG_PAGE_OFFSET=0xC0000000
CONFIG_PCI=y
CONFIG_PERF_USE_VMALLOC=y
CONFIG_PHYLIB=y
# CONFIG_PL310_ERRATA_588369 is not set
# CONFIG_PL310_ERRATA_727915 is not set
# CONFIG_PL310_ERRATA_753970 is not set
# CONFIG_PL310_ERRATA_769419 is not set
# CONFIG_PREEMPT_RCU is not set
CONFIG_RCU_STALL_COMMON=y
CONFIG_RFS_ACCEL=y
CONFIG_RPS=y
CONFIG_SCHED_HRTICK=y
# CONFIG_SCSI_DMA is not set
CONFIG_SERIAL_OF_PLATFORM=y
CONFIG_SMP=y
CONFIG_SMP_ON_UP=y
CONFIG_SPARSE_IRQ=y
CONFIG_STOP_MACHINE=y
CONFIG_SWCONFIG=y
CONFIG_SWIOTLB=y
# CONFIG_SWP_EMULATE is not set
CONFIG_SYS_SUPPORTS_APM_EMULATION=y
# CONFIG_THUMB2_KERNEL is not set
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_TREE_RCU=y
CONFIG_UID16=y
CONFIG_UNCOMPRESS_INCLUDE="debug/uncompress.h"
CONFIG_USB_SUPPORT=y
CONFIG_USE_OF=y
CONFIG_VECTORS_BASE=0xffff0000
# CONFIG_VFP is not set
# CONFIG_XEN is not set
CONFIG_XPS=y
CONFIG_XZ_DEC_ARM=y
CONFIG_XZ_DEC_BCJ=y
CONFIG_ZBOOT_ROM_BSS=0x0
CONFIG_ZBOOT_ROM_TEXT=0x0
# CONFIG_ZBUD is not set
CONFIG_ZONE_DMA_FLAG=0

View file

@ -0,0 +1,148 @@
From 5b293ebe757213993ae93b6cbbf5e1d09b75ac2f Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Tue, 4 Feb 2014 00:01:43 +0100
Subject: [PATCH 1/3] ARM: BCM5301X: initial support for the BCM5301X/BCM470X
SoCs with ARM CPU
This patch adds support for the BCM5301X/BCM470X SoCs with an ARM CPUs.
Currently just booting to a shell is working and nothing else, no
Ethernet, wifi, flash, ...
I have some pending patches to make Ethernet work for this device.
Mostly device tree support for bcma is missing.
This SoC is used in small office and home router with Broadcom SoCs
it's internal name is Northstar. This code should support the BCM4707,
BCM4708, BCM4709, BCM53010, BCM53011 and BCM53012 SoC. It uses one or
two ARM Cortex A9 Cores, some highlights are 2 PCIe 2.0 controllers,
4 Gigabit Ethernet MACs and a USB 3.0 host controller.
This SoC uses a dual core CPU, but this is currently not implemented.
More information about this SoC can be found here:
http://www.anandtech.com/show/5925/broadcom-announces-bcm4708x-and-bcm5301x-socs-for-80211ac-routers
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
---
Documentation/devicetree/bindings/arm/bcm4708.txt | 8 ++++++
MAINTAINERS | 8 ++++++
arch/arm/configs/multi_v7_defconfig | 1 +
arch/arm/mach-bcm/Kconfig | 26 +++++++++++++++++++
arch/arm/mach-bcm/Makefile | 1 +
arch/arm/mach-bcm/bcm_5301x.c | 28 +++++++++++++++++++++
6 files changed, 72 insertions(+)
create mode 100644 Documentation/devicetree/bindings/arm/bcm4708.txt
create mode 100644 arch/arm/mach-bcm/bcm_5301x.c
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/bcm4708.txt
@@ -0,0 +1,8 @@
+Broadcom BCM4708 device tree bindings
+-------------------------------------------
+
+Boards with the BCM4708 SoC shall have the following properties:
+
+Required root node property:
+
+compatible = "brcm,bcm4708";
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -1883,6 +1883,14 @@ F: arch/arm/boot/dts/bcm2835*
F: arch/arm/configs/bcm2835_defconfig
F: drivers/*/*bcm2835*
+BROADCOM BCM5301X ARM ARCHICTURE
+M: Hauke Mehrtens <hauke@hauke-m.de>
+L: linux-arm-kernel@lists.infradead.org
+S: Maintained
+F: arch/arm/mach-bcm/bcm_5301x.c
+F: arch/arm/boot/dts/bcm5301x.dtsi
+F: arch/arm/boot/dts/bcm470*
+
BROADCOM TG3 GIGABIT ETHERNET DRIVER
M: Nithin Nayak Sujir <nsujir@broadcom.com>
M: Michael Chan <mchan@broadcom.com>
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -11,6 +11,7 @@ CONFIG_ARCH_MVEBU=y
CONFIG_MACH_ARMADA_370=y
CONFIG_MACH_ARMADA_XP=y
CONFIG_ARCH_BCM=y
+CONFIG_ARCH_BCM_5301X=y
CONFIG_ARCH_BCM_MOBILE=y
CONFIG_ARCH_BERLIN=y
CONFIG_MACH_BERLIN_BG2=y
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -32,6 +32,32 @@ config ARCH_BCM_MOBILE
BCM11130, BCM11140, BCM11351, BCM28145 and
BCM28155 variants.
+config ARCH_BCM_5301X
+ bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
+ depends on MMU
+ select ARM_GIC
+ select CACHE_L2X0
+ select HAVE_ARM_SCU if SMP
+ select HAVE_ARM_TWD if SMP
+ select HAVE_SMP
+ select COMMON_CLK
+ select GENERIC_CLOCKEVENTS
+ select ARM_GLOBAL_TIMER
+ select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
+ select MIGHT_HAVE_PCI
+ help
+ Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores.
+
+ This is a network SoC line mostly used in home routers and
+ wifi access points, it's internal name is Northstar.
+ This inclused the following SoC: BCM53010, BCM53011, BCM53012,
+ BCM53014, BCM53015, BCM53016, BCM53017, BCM53018, BCM4707,
+ BCM4708 and BCM4709.
+
+ Do not confuse this with the BCM4760 which is a totally
+ different SoC or with the older BCM47XX and BCM53XX based
+ network SoC using a MIPS CPU, they are supported by arch/mips/bcm47xx
+
endmenu
endif
--- a/arch/arm/mach-bcm/Makefile
+++ b/arch/arm/mach-bcm/Makefile
@@ -13,3 +13,4 @@
obj-$(CONFIG_ARCH_BCM_MOBILE) := board_bcm281xx.o bcm_kona_smc.o bcm_kona_smc_asm.o kona.o
plus_sec := $(call as-instr,.arch_extension sec,+sec)
AFLAGS_bcm_kona_smc_asm.o :=-Wa,-march=armv7-a$(plus_sec)
+obj-$(CONFIG_ARCH_BCM_5301X) += bcm_5301x.o
--- /dev/null
+++ b/arch/arm/mach-bcm/bcm_5301x.c
@@ -0,0 +1,28 @@
+/*
+ * Broadcom BCM470X / BCM5301X ARM platform code.
+ *
+ * Copyright 2013 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+#include <linux/of_platform.h>
+#include <asm/hardware/cache-l2x0.h>
+
+#include <asm/mach/arch.h>
+
+
+static void __init bcm5301x_dt_init(void)
+{
+ l2x0_of_init(0, ~0UL);
+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+}
+
+static const char __initconst *bcm5301x_dt_compat[] = {
+ "brcm,bcm4708",
+ NULL,
+};
+
+DT_MACHINE_START(BCM5301X, "BCM5301X")
+ .init_machine = bcm5301x_dt_init,
+ .dt_compat = bcm5301x_dt_compat,
+MACHINE_END

View file

@ -0,0 +1,45 @@
From 065802756b20d878c83290c115f212fc1631cba7 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Tue, 4 Feb 2014 00:01:44 +0100
Subject: [PATCH 2/3] ARM: BCM5301X: add early debugging support
This adds support for early debugging of BCM5301X SoC.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
---
arch/arm/Kconfig.debug | 7 +++++++
1 file changed, 7 insertions(+)
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -106,6 +106,11 @@ choice
depends on ARCH_BCM2835
select DEBUG_UART_PL01X
+ config DEBUG_BCM_5301X
+ bool "Kernel low-level debugging on BCM5301X UART1"
+ depends on ARCH_BCM_5301X
+ select DEBUG_UART_PL01X
+
config DEBUG_BCM_KONA_UART
bool "Kernel low-level debugging messages via BCM KONA UART"
depends on ARCH_BCM
@@ -1023,6 +1028,7 @@ config DEBUG_UART_PHYS
default 0x101f1000 if ARCH_VERSATILE
default 0x101fb000 if DEBUG_NOMADIK_UART
default 0x16000000 if ARCH_INTEGRATOR
+ default 0x18000300 if DEBUG_BCM_5301X
default 0x1c090000 if DEBUG_VEXPRESS_UART0_RS1
default 0x20060000 if DEBUG_RK29_UART0
default 0x20064000 if DEBUG_RK29_UART1 || DEBUG_RK3X_UART2
@@ -1071,6 +1077,7 @@ config DEBUG_UART_VIRT
default 0xf0009000 if DEBUG_CNS3XXX
default 0xf01fb000 if DEBUG_NOMADIK_UART
default 0xf0201000 if DEBUG_BCM2835
+ default 0xf1000300 if DEBUG_BCM_5301X
default 0xf11f1000 if ARCH_VERSATILE
default 0xf1600000 if ARCH_INTEGRATOR
default 0xf1c28000 if DEBUG_SUNXI_UART0

View file

@ -0,0 +1,93 @@
From fdf4850cb5b2e5e549a18b8b41abb001bfb19e9c Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Tue, 4 Feb 2014 00:01:46 +0100
Subject: [PATCH 3/3] ARM: BCM5301X: workaround suppress fault
Without this patch I am getting a unhandled fault exception like this
one after "Freeing unused kernel memory":
Freeing unused kernel memory: 1260K (c02c1000 - c03fc000)
Unhandled fault: imprecise external abort (0x1c06) at 0xb6f89005
Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
The address which is here 0xb6f89005 changes from boot to boot, with a
new build the changes are bigger. With kernel 3.10 I have also seen
this fault at different places in the boot process, but starting with
3.11 they are always occurring after the "Freeing unused kernel memory"
message. I never was able to completely boot to userspace without this
handler. The abort code is constant 0x1c06. This fault just happens
once in the boot process I have never seen it happing twice or more.
I also tried changing the CPSR.A bit to 0 in init_early, with this code
like Afzal suggested, but that did not change anything:
asm volatile("mrs r12, cpsr\n"
"bic r12, r12, #0x00000100\n"
"msr cpsr_c, r12" ::: "r12", "cc", "memory");
Disabling the L2 cache by building with CONFIG_CACHE_L2X0 unset did not
help.
This workaround was copied from the vendor code including most of the
comments. It says it they think this is caused by the CFE boot loader
used on this device. I do not have any access to any datasheet or
errata document to check this.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
---
arch/arm/mach-bcm/bcm_5301x.c | 33 +++++++++++++++++++++++++++++++++
1 file changed, 33 insertions(+)
--- a/arch/arm/mach-bcm/bcm_5301x.c
+++ b/arch/arm/mach-bcm/bcm_5301x.c
@@ -9,8 +9,40 @@
#include <asm/hardware/cache-l2x0.h>
#include <asm/mach/arch.h>
+#include <asm/siginfo.h>
+#include <asm/signal.h>
+static bool first_fault = true;
+
+static int bcm5301x_abort_handler(unsigned long addr, unsigned int fsr,
+ struct pt_regs *regs)
+{
+ if (fsr == 0x1c06 && first_fault) {
+ first_fault = false;
+
+ /*
+ * These faults with code 0x1c06 happens for no good reason,
+ * possibly left over from the CFE boot loader.
+ */
+ pr_warn("External imprecise Data abort at addr=%#lx, fsr=%#x ignored.\n",
+ addr, fsr);
+
+ /* Returning non-zero causes fault display and panic */
+ return 0;
+ }
+
+ /* Others should cause a fault */
+ return 1;
+}
+
+static void __init bcm5301x_init_early(void)
+{
+ /* Install our hook */
+ hook_fault_code(16 + 6, bcm5301x_abort_handler, SIGBUS, BUS_OBJERR,
+ "imprecise external abort");
+}
+
static void __init bcm5301x_dt_init(void)
{
l2x0_of_init(0, ~0UL);
@@ -23,6 +55,7 @@ static const char __initconst *bcm5301x_
};
DT_MACHINE_START(BCM5301X, "BCM5301X")
+ .init_early = bcm5301x_init_early,
.init_machine = bcm5301x_dt_init,
.dt_compat = bcm5301x_dt_compat,
MACHINE_END

View file

@ -0,0 +1,204 @@
From d27509f19b5f93ea3425cfef782bb3c6541cd44d Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Tue, 4 Feb 2014 00:01:45 +0100
Subject: [PATCH] ARM: BCM5301X: add dts files for BCM4708 SoC
This uses the newly added BCM5301X SoC code.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Christian Daudt <bcm@fixthebug.org>
Signed-off-by: Matt Porter <mporter@linaro.org>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/bcm4708-netgear-r6250.dts | 35 ++++++++++
arch/arm/boot/dts/bcm4708.dtsi | 34 ++++++++++
arch/arm/boot/dts/bcm5301x.dtsi | 95 +++++++++++++++++++++++++++
4 files changed, 165 insertions(+)
create mode 100644 arch/arm/boot/dts/bcm4708-netgear-r6250.dts
create mode 100644 arch/arm/boot/dts/bcm4708.dtsi
create mode 100644 arch/arm/boot/dts/bcm5301x.dtsi
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -50,6 +50,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rp
dtb-$(CONFIG_ARCH_BCM_MOBILE) += bcm11351-brt.dtb \
bcm28155-ap.dtb
dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb
+dtb-$(CONFIG_ARCH_BCM_5301X) += bcm4708-netgear-r6250.dtb
dtb-$(CONFIG_ARCH_BERLIN) += \
berlin2-sony-nsz-gs7.dtb \
berlin2cd-google-chromecast.dtb
--- /dev/null
+++ b/arch/arm/boot/dts/bcm4708-netgear-r6250.dts
@@ -0,0 +1,35 @@
+/*
+ * Broadcom BCM470X / BCM5301X arm platform code.
+ * DTS for Netgear R6250 V1
+ *
+ * Copyright 2013 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+/dts-v1/;
+
+#include "bcm4708.dtsi"
+
+/ {
+ compatible = "netgear,r6250v1", "brcm,bcm4708";
+ model = "Netgear R6250 V1 (BCM4708)";
+
+ chosen {
+ bootargs = "console=ttyS0,115200";
+ };
+
+ memory {
+ reg = <0x00000000 0x08000000>;
+ };
+
+ chipcommonA {
+ uart0: serial@0300 {
+ status = "okay";
+ };
+
+ uart1: serial@0400 {
+ status = "okay";
+ };
+ };
+};
--- /dev/null
+++ b/arch/arm/boot/dts/bcm4708.dtsi
@@ -0,0 +1,34 @@
+/*
+ * Broadcom BCM470X / BCM5301X ARM platform code.
+ * DTS for BCM4708 SoC.
+ *
+ * Copyright 2013-2014 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include "bcm5301x.dtsi"
+
+/ {
+ compatible = "brcm,bcm4708";
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&L2>;
+ reg = <0x0>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&L2>;
+ reg = <0x1>;
+ };
+ };
+
+};
--- /dev/null
+++ b/arch/arm/boot/dts/bcm5301x.dtsi
@@ -0,0 +1,95 @@
+/*
+ * Broadcom BCM470X / BCM5301X ARM platform code.
+ * Generic DTS part for all BCM53010, BCM53011, BCM53012, BCM53014, BCM53015,
+ * BCM53016, BCM53017, BCM53018, BCM4707, BCM4708 and BCM4709 SoCs
+ *
+ * Copyright 2013-2014 Hauke Mehrtens <hauke@hauke-m.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <dt-bindings/interrupt-controller/irq.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include "skeleton.dtsi"
+
+/ {
+ interrupt-parent = <&gic>;
+
+ chipcommonA {
+ compatible = "simple-bus";
+ ranges = <0x00000000 0x18000000 0x00001000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ uart0: serial@0300 {
+ compatible = "ns16550";
+ reg = <0x0300 0x100>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <100000000>;
+ status = "disabled";
+ };
+
+ uart1: serial@0400 {
+ compatible = "ns16550";
+ reg = <0x0400 0x100>;
+ interrupts = <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>;
+ clock-frequency = <100000000>;
+ status = "disabled";
+ };
+ };
+
+ mpcore {
+ compatible = "simple-bus";
+ ranges = <0x00000000 0x19020000 0x00003000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ scu@0000 {
+ compatible = "arm,cortex-a9-scu";
+ reg = <0x0000 0x100>;
+ };
+
+ timer@0200 {
+ compatible = "arm,cortex-a9-global-timer";
+ reg = <0x0200 0x100>;
+ interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk_periph>;
+ };
+
+ local-timer@0600 {
+ compatible = "arm,cortex-a9-twd-timer";
+ reg = <0x0600 0x100>;
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk_periph>;
+ };
+
+ gic: interrupt-controller@1000 {
+ compatible = "arm,cortex-a9-gic";
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ reg = <0x1000 0x1000>,
+ <0x0100 0x100>;
+ };
+
+ L2: cache-controller@2000 {
+ compatible = "arm,pl310-cache";
+ reg = <0x2000 0x1000>;
+ cache-unified;
+ cache-level = <2>;
+ };
+ };
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ /* As long as we do not have a real clock driver us this
+ * fixed clock */
+ clk_periph: periph {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <400000000>;
+ };
+ };
+};

View file

@ -0,0 +1,59 @@
From 22b90bcf616578abe09845c72317ce53312f7faf Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Sat, 25 Jan 2014 17:03:07 +0100
Subject: [PATCH 8/8] ARM: BCM5301X: register bcma bus
---
arch/arm/boot/dts/bcm4708.dtsi | 43 ++++++++++++++++++++++++++++++++++++++++
1 file changed, 43 insertions(+)
--- a/arch/arm/boot/dts/bcm4708.dtsi
+++ b/arch/arm/boot/dts/bcm4708.dtsi
@@ -31,4 +31,47 @@
};
};
+ aix@18000000 {
+ compatible = "brcm,bus-aix";
+ reg = <0x18000000 0x1000>;
+ ranges = <0x00000000 0x18000000 0x00100000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ usb2@0 {
+ compatible = "brcm,northstar-usb2";
+ reg = <0x18021000 0x1000>;
+ interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ usb3@0 {
+ compatible = "brcm,northstar-usb3";
+ reg = <0x18023000 0x1000>;
+ interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ gmac@0 {
+ compatible = "brcm,northstar-gmac";
+ reg = <0x18024000 0x1000>;
+ interrupts = <GIC_SPI 147 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ gmac@1 {
+ compatible = "brcm,northstar-gmac";
+ reg = <0x18025000 0x1000>;
+ interrupts = <GIC_SPI 148 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ gmac@2 {
+ compatible = "brcm,northstar-gmac";
+ reg = <0x18026000 0x1000>;
+ interrupts = <GIC_SPI 149 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ gmac@3 {
+ compatible = "brcm,northstar-gmac";
+ reg = <0x18027000 0x1000>;
+ interrupts = <GIC_SPI 150 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
};

View file

@ -0,0 +1,115 @@
From c046c19fc8f1af7cf253fea5b0253143c159948a Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Mon, 6 Jan 2014 23:29:15 +0100
Subject: [PATCH 6/8] bcma: register bcma as device tree driver
This driver is used by the bcm53xx ARM SoC code.Now it is possible to
give the address of the chipcommon core in device tree.
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
---
drivers/bcma/host_soc.c | 70 +++++++++++++++++++++++++++++++++++++++++++++
include/linux/bcma/bcma.h | 2 ++
2 files changed, 72 insertions(+)
--- a/drivers/bcma/host_soc.c
+++ b/drivers/bcma/host_soc.c
@@ -7,6 +7,9 @@
#include "bcma_private.h"
#include "scan.h"
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/of_address.h>
#include <linux/bcma/bcma.h>
#include <linux/bcma/bcma_soc.h>
@@ -173,6 +176,7 @@ int __init bcma_host_soc_register(struct
/* Host specific */
bus->hosttype = BCMA_HOSTTYPE_SOC;
bus->ops = &bcma_host_soc_ops;
+ bus->host_pdev = NULL;
/* Register */
err = bcma_bus_early_register(bus, &soc->core_cc, &soc->core_mips);
@@ -181,3 +185,69 @@ int __init bcma_host_soc_register(struct
return err;
}
+
+#ifdef CONFIG_OF
+static int bcma_host_soc_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *np = dev->of_node;
+ struct bcma_bus *bus;
+ int err;
+
+ /* Alloc */
+ bus = devm_kzalloc(dev, sizeof(*bus), GFP_KERNEL);
+ if (!bus)
+ return -ENOMEM;
+
+ /* Map MMIO */
+ bus->mmio = of_iomap(np, 0);
+ if (!bus->mmio)
+ return -ENOMEM;
+
+ /* Host specific */
+ bus->hosttype = BCMA_HOSTTYPE_SOC;
+ bus->ops = &bcma_host_soc_ops;
+ bus->host_pdev = pdev;
+
+ /* Register */
+ err = bcma_bus_register(bus);
+ if (err)
+ goto err_unmap_mmio;
+
+ platform_set_drvdata(pdev, bus);
+
+ return err;
+
+err_unmap_mmio:
+ iounmap(bus->mmio);
+ return err;
+}
+
+static int bcma_host_soc_remove(struct platform_device *pdev)
+{
+ struct bcma_bus *bus = platform_get_drvdata(pdev);
+
+ bcma_bus_unregister(bus);
+ iounmap(bus->mmio);
+ platform_set_drvdata(pdev, NULL);
+
+ return 0;
+}
+
+static const struct of_device_id bcma_host_soc_of_match[] = {
+ { .compatible = "brcm,bus-aix", },
+ {},
+};
+MODULE_DEVICE_TABLE(of, bcma_host_soc_of_match);
+
+static struct platform_driver bcma_host_soc_driver = {
+ .driver = {
+ .name = "bcma-host-soc",
+ .owner = THIS_MODULE,
+ .of_match_table = bcma_host_soc_of_match,
+ },
+ .probe = bcma_host_soc_probe,
+ .remove = bcma_host_soc_remove,
+};
+module_platform_driver(bcma_host_soc_driver);
+#endif /* CONFIG_OF */
--- a/include/linux/bcma/bcma.h
+++ b/include/linux/bcma/bcma.h
@@ -319,6 +319,8 @@ struct bcma_bus {
struct pci_dev *host_pci;
/* Pointer to the SDIO device (only for BCMA_HOSTTYPE_SDIO) */
struct sdio_func *host_sdio;
+ /* Pointer to platform device (only for BCMA_HOSTTYPE_SOC) */
+ struct platform_device *host_pdev;
};
struct bcma_chipinfo chipinfo;

View file

@ -0,0 +1,74 @@
From 06a21484198df9a4d34fe5062878d3bf4fc14340 Mon Sep 17 00:00:00 2001
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: Thu, 9 Jan 2014 19:40:14 +0100
Subject: [PATCH 7/8] bcma: get irqs from dt
---
drivers/bcma/main.c | 42 +++++++++++++++++++++++++++++++++++++++++-
1 file changed, 41 insertions(+), 1 deletion(-)
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -10,6 +10,8 @@
#include <linux/platform_device.h>
#include <linux/bcma/bcma.h>
#include <linux/slab.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
MODULE_DESCRIPTION("Broadcom's specific AMBA driver");
MODULE_LICENSE("GPL");
@@ -120,6 +122,38 @@ static void bcma_release_core_dev(struct
kfree(core);
}
+static struct device_node *bcma_of_find_child_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+ struct device_node *node;
+ u64 size;
+ const __be32 *reg;
+
+ if (!parent || !parent->dev.of_node)
+ return NULL;
+
+ for_each_child_of_node(parent->dev.of_node, node) {
+ reg = of_get_address(node, 0, &size, 0);
+ if (!reg)
+ continue;
+ if (be32_to_cpup(reg) == core->addr)
+ return node;
+ }
+ return NULL;
+}
+
+static void bcma_of_fill_device(struct platform_device *parent,
+ struct bcma_device *core)
+{
+ struct device_node *node;
+
+ node = bcma_of_find_child_device(parent, core);
+ if (!node)
+ return;
+ core->dev.of_node = node;
+ core->irq = irq_of_parse_and_map(node, 0);
+}
+
static int bcma_register_cores(struct bcma_bus *bus)
{
struct bcma_device *core;
@@ -154,7 +188,13 @@ static int bcma_register_cores(struct bc
break;
case BCMA_HOSTTYPE_SOC:
core->dev.dma_mask = &core->dev.coherent_dma_mask;
- core->dma_dev = &core->dev;
+ if (bus->host_pdev) {
+ core->dma_dev = &bus->host_pdev->dev;
+ core->dev.parent = &bus->host_pdev->dev;
+ bcma_of_fill_device(bus->host_pdev, core);
+ } else {
+ core->dma_dev = &core->dev;
+ }
break;
case BCMA_HOSTTYPE_SDIO:
break;

View file

@ -0,0 +1,73 @@
These are some hackish patches to make the Ethernet driver work somehow
on this arm core.
The flash driver is not working, so we removed the nvram reading, this
should be changed after we have a flash driver.
The mdelay(1) is a ugly workaround for this arm chip, this seams to be a dma problem.
The PHY says it is not connected by default, just ignore it.
--- a/drivers/net/ethernet/broadcom/Kconfig
+++ b/drivers/net/ethernet/broadcom/Kconfig
@@ -131,7 +131,7 @@ config BNX2X_SRIOV
config BGMAC
tristate "BCMA bus GBit core support"
- depends on BCMA_HOST_SOC && HAS_DMA && BCM47XX
+ depends on BCMA_HOST_SOC && HAS_DMA
select PHYLIB
---help---
This driver supports GBit MAC and BCM4706 GBit MAC cores on BCMA bus.
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -17,7 +17,11 @@
#include <linux/interrupt.h>
#include <linux/dma-mapping.h>
#include <linux/platform_data/b53.h>
+#ifdef CONFIG_BCM47XX
#include <bcm47xx_nvram.h>
+#else
+#define bcm47xx_nvram_getenv(a, b, c) -1
+#endif
static const struct bcma_device_id bgmac_bcma_tbl[] = {
BCMA_CORE(BCMA_MANUF_BCM, BCMA_CORE_4706_MAC_GBIT, BCMA_ANY_REV, BCMA_ANY_CLASS),
@@ -1452,7 +1456,7 @@ static int bgmac_probe(struct bcma_devic
int err;
/* We don't support 2nd, 3rd, ... units, SPROM has to be adjusted */
- if (core->core_unit > 1) {
+ if (core->core_unit > 0) {
pr_err("Unsupported core_unit %d\n", core->core_unit);
return -ENOTSUPP;
}
@@ -1487,8 +1491,7 @@ static int bgmac_probe(struct bcma_devic
}
bgmac->cmn = core->bus->drv_gmac_cmn.core;
- bgmac->phyaddr = core->core_unit ? sprom->et1phyaddr :
- sprom->et0phyaddr;
+ bgmac->phyaddr = BGMAC_PHY_NOREGS; // core->core_unit ? sprom->et1phyaddr : sprom->et0phyaddr;
bgmac->phyaddr &= BGMAC_PHY_MASK;
if (bgmac->phyaddr == BGMAC_PHY_MASK) {
bgmac_err(bgmac, "No PHY found\n");
@@ -1540,8 +1543,7 @@ static int bgmac_probe(struct bcma_devic
/* TODO: reset the external phy. Specs are needed */
bgmac_phy_reset(bgmac);
- bgmac->has_robosw = !!(core->bus->sprom.boardflags_lo &
- BGMAC_BFL_ENETROBO);
+ bgmac->has_robosw = 1;
if (bgmac->has_robosw)
bgmac_warn(bgmac, "Support for Roboswitch not implemented\n");
--- a/drivers/net/phy/phy_device.c
+++ b/drivers/net/phy/phy_device.c
@@ -898,7 +898,7 @@ int genphy_update_link(struct phy_device
return status;
if ((status & BMSR_LSTATUS) == 0)
- phydev->link = 0;
+ phydev->link = 1;
else
phydev->link = 1;