target/linux/bcm53xx/patches-3.14/040-ARM-BCM5301X-initial-support-for-the-BCM5301X-BCM470.patch

   1 From 5b293ebe757213993ae93b6cbbf5e1d09b75ac2f Mon Sep 17 00:00:00 2001
   2 From: Hauke Mehrtens <hauke@hauke-m.de>
   3 Date: Tue, 4 Feb 2014 00:01:43 +0100
   4 Subject: [PATCH 1/3] ARM: BCM5301X: initial support for the BCM5301X/BCM470X
   5  SoCs with ARM CPU
   6
   7 This patch adds support for the BCM5301X/BCM470X SoCs with an ARM CPUs.
   8 Currently just booting to a shell is working and nothing else, no
   9 Ethernet, wifi, flash, ...
  10 I have some pending patches to make Ethernet work for this device.
  11 Mostly device tree support for bcma is missing.
  12
  13 This SoC is used in small office and home router with Broadcom SoCs
  14 it's internal name is Northstar. This code should support the BCM4707,
  15 BCM4708, BCM4709, BCM53010, BCM53011 and BCM53012 SoC. It uses one or
  16 two ARM Cortex A9 Cores, some highlights are 2 PCIe 2.0 controllers,
  17 4 Gigabit Ethernet MACs and a USB 3.0 host controller.
  18
  19 This SoC uses a dual core CPU, but this is currently not implemented.
  20 More information about this SoC can be found here:
  21 http://www.anandtech.com/show/5925/broadcom-announces-bcm4708x-and-bcm5301x-socs-for-80211ac-routers
  22
  23 Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
  24 Acked-by: Arnd Bergmann <arnd@arndb.de>
  25 Acked-by: Christian Daudt <bcm@fixthebug.org>
  26 Signed-off-by: Matt Porter <mporter@linaro.org>
  27 ---
  28  Documentation/devicetree/bindings/arm/bcm4708.txt |    8 ++++++
  29  MAINTAINERS                                       |    8 ++++++
  30  arch/arm/configs/multi_v7_defconfig               |    1 +
  31  arch/arm/mach-bcm/Kconfig                         |   26 +++++++++++++++++++
  32  arch/arm/mach-bcm/Makefile                        |    1 +
  33  arch/arm/mach-bcm/bcm_5301x.c                     |   28 +++++++++++++++++++++
  34  6 files changed, 72 insertions(+)
  35  create mode 100644 Documentation/devicetree/bindings/arm/bcm4708.txt
  36  create mode 100644 arch/arm/mach-bcm/bcm_5301x.c
  37
  38 --- /dev/null
  39 +++ b/Documentation/devicetree/bindings/arm/bcm4708.txt
  40 @@ -0,0 +1,8 @@
  41 +Broadcom BCM4708 device tree bindings
  42 +-------------------------------------------
  43 +
  44 +Boards with the BCM4708 SoC shall have the following properties:
  45 +
  46 +Required root node property:
  47 +
  48 +compatible = "brcm,bcm4708";
  49 --- a/MAINTAINERS
  50 +++ b/MAINTAINERS
  51 @@ -1883,6 +1883,14 @@ F:       arch/arm/boot/dts/bcm2835*
  52  F:     arch/arm/configs/bcm2835_defconfig
  53  F:     drivers/*/*bcm2835*
  54
  55 +BROADCOM BCM5301X ARM ARCHICTURE
  56 +M:     Hauke Mehrtens <hauke@hauke-m.de>
  57 +L:     linux-arm-kernel@lists.infradead.org
  58 +S:     Maintained
  59 +F:     arch/arm/mach-bcm/bcm_5301x.c
  60 +F:     arch/arm/boot/dts/bcm5301x.dtsi
  61 +F:     arch/arm/boot/dts/bcm470*
  62 +
  63  BROADCOM TG3 GIGABIT ETHERNET DRIVER
  64  M:     Nithin Nayak Sujir <nsujir@broadcom.com>
  65  M:     Michael Chan <mchan@broadcom.com>
  66 --- a/arch/arm/configs/multi_v7_defconfig
  67 +++ b/arch/arm/configs/multi_v7_defconfig
  68 @@ -11,6 +11,7 @@ CONFIG_ARCH_MVEBU=y
  69  CONFIG_MACH_ARMADA_370=y
  70  CONFIG_MACH_ARMADA_XP=y
  71  CONFIG_ARCH_BCM=y
  72 +CONFIG_ARCH_BCM_5301X=y
  73  CONFIG_ARCH_BCM_MOBILE=y
  74  CONFIG_ARCH_BERLIN=y
  75  CONFIG_MACH_BERLIN_BG2=y
  76 --- a/arch/arm/mach-bcm/Kconfig
  77 +++ b/arch/arm/mach-bcm/Kconfig
  78 @@ -32,6 +32,32 @@ config ARCH_BCM_MOBILE
  79           BCM11130, BCM11140, BCM11351, BCM28145 and
  80           BCM28155 variants.
  81
  82 +config ARCH_BCM_5301X
  83 +       bool "Broadcom BCM470X / BCM5301X ARM SoC" if ARCH_MULTI_V7
  84 +       depends on MMU
  85 +       select ARM_GIC
  86 +       select CACHE_L2X0
  87 +       select HAVE_ARM_SCU if SMP
  88 +       select HAVE_ARM_TWD if SMP
  89 +       select HAVE_SMP
  90 +       select COMMON_CLK
  91 +       select GENERIC_CLOCKEVENTS
  92 +       select ARM_GLOBAL_TIMER
  93 +       select CLKSRC_ARM_GLOBAL_TIMER_SCHED_CLOCK
  94 +       select MIGHT_HAVE_PCI
  95 +       help
  96 +         Support for Broadcom BCM470X and BCM5301X SoCs with ARM CPU cores.
  97 +
  98 +         This is a network SoC line mostly used in home routers and
  99 +         wifi access points, it's internal name is Northstar.
 100 +         This inclused the following SoC: BCM53010, BCM53011, BCM53012,
 101 +         BCM53014, BCM53015, BCM53016, BCM53017, BCM53018, BCM4707,
 102 +         BCM4708 and BCM4709.
 103 +
 104 +         Do not confuse this with the BCM4760 which is a totally
 105 +         different SoC or with the older BCM47XX and BCM53XX based
 106 +         network SoC using a MIPS CPU, they are supported by arch/mips/bcm47xx
 107 +
 108  endmenu
 109
 110  endif
 111 --- a/arch/arm/mach-bcm/Makefile
 112 +++ b/arch/arm/mach-bcm/Makefile
 113 @@ -13,3 +13,4 @@
 114  obj-$(CONFIG_ARCH_BCM_MOBILE)  := board_bcm281xx.o bcm_kona_smc.o bcm_kona_smc_asm.o kona.o
 115  plus_sec := $(call as-instr,.arch_extension sec,+sec)
 116  AFLAGS_bcm_kona_smc_asm.o      :=-Wa,-march=armv7-a$(plus_sec)
 117 +obj-$(CONFIG_ARCH_BCM_5301X)   += bcm_5301x.o
 118 --- /dev/null
 119 +++ b/arch/arm/mach-bcm/bcm_5301x.c
 120 @@ -0,0 +1,28 @@
 121 +/*
 122 + * Broadcom BCM470X / BCM5301X ARM platform code.
 123 + *
 124 + * Copyright 2013 Hauke Mehrtens <hauke@hauke-m.de>
 125 + *
 126 + * Licensed under the GNU/GPL. See COPYING for details.
 127 + */
 128 +#include <linux/of_platform.h>
 129 +#include <asm/hardware/cache-l2x0.h>
 130 +
 131 +#include <asm/mach/arch.h>
 132 +
 133 +
 134 +static void __init bcm5301x_dt_init(void)
 135 +{
 136 +       l2x0_of_init(0, ~0UL);
 137 +       of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 138 +}
 139 +
 140 +static const char __initconst *bcm5301x_dt_compat[] = {
 141 +       "brcm,bcm4708",
 142 +       NULL,
 143 +};
 144 +
 145 +DT_MACHINE_START(BCM5301X, "BCM5301X")
 146 +       .init_machine   = bcm5301x_dt_init,
 147 +       .dt_compat      = bcm5301x_dt_compat,
 148 +MACHINE_END