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ARM: mach-bcm soc updates 

- add BCM5301x support
 - remove GENERIC_TIME
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Merge tag 'armsoc/for-3.15/soc-2' of git://github.com/broadcom/mach-bcm into next/soc

Merge "ARM: mach-bcm soc updates" from Matt Porter:

- add BCM5301x support
- remove GENERIC_TIME

* tag 'armsoc/for-3.15/soc-2' of git://github.com/broadcom/mach-bcm:
  ARM: BCM5301X: workaround suppress fault
  ARM: BCM5301X: add early debugging support
  ARM: BCM5301X: initial support for the BCM5301X/BCM470X SoCs with ARM CPU
  ARM: mach-bcm: Remove GENERIC_TIME

Signed-off-by: Olof Johansson <olof@lixom.net>
This commit is contained in:
Olof Johansson 2014-03-11 13:18:21 -07:00
parent 42dc836dbe fdf4850cb5
commit 07cb1ec1ae
7 changed files with 112 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
Documentation/devicetree/bindings/arm/bcm4708.txt Normal file
View File

@ -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";

8
MAINTAINERS
View File

@ -1889,6 +1889,14 @@ 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>

7
arch/arm/Kconfig.debug
View File

@ -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

1
arch/arm/configs/multi_v7_defconfig
View File

@ -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

26
arch/arm/mach-bcm/Kconfig
View File

@ -27,6 +27,32 @@ 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

1
arch/arm/mach-bcm/Makefile
View File

@ -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

61
arch/arm/mach-bcm/bcm_5301x.c Normal file
View File

@ -0,0 +1,61 @@
/*
* 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>
#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);
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_early = bcm5301x_init_early,
.init_machine = bcm5301x_dt_init,
.dt_compat = bcm5301x_dt_compat,
MACHINE_END