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1377916ea7
This reorders the patchs and adds some new ones. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> SVN-Revision: 37586
306 lines
7.8 KiB
Diff
306 lines
7.8 KiB
Diff
bcm53xx: initial support for the BCM5301/BCM470X SoC
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with ARM CPU
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This patch adds support for the BCM5301/BCM470X SoCs with an ARM CPU.
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Currently just booting to a shell is working and nothing else, no
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Ethernet, wifi, flash, ...
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Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
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---
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arch/arm/Kconfig | 2 +
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arch/arm/Kconfig.debug | 5 ++
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arch/arm/Makefile | 1 +
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arch/arm/boot/dts/Makefile | 1 +
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arch/arm/boot/dts/bcm5301-netgear-r6250.dts | 20 +++++++
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arch/arm/boot/dts/bcm5301.dtsi | 83 +++++++++++++++++++++++++++
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arch/arm/include/debug/bcm53xx.S | 19 ++++++
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arch/arm/mach-bcm53xx/Kconfig | 15 +++++
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arch/arm/mach-bcm53xx/Makefile | 1 +
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arch/arm/mach-bcm53xx/bcm53xx.c | 69 ++++++++++++++++++++++
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10 files changed, 216 insertions(+)
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create mode 100644 arch/arm/boot/dts/bcm5301-netgear-r6250.dts
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create mode 100644 arch/arm/boot/dts/bcm5301.dtsi
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create mode 100644 arch/arm/include/debug/bcm53xx.S
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create mode 100644 arch/arm/mach-bcm53xx/Kconfig
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create mode 100644 arch/arm/mach-bcm53xx/Makefile
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create mode 100644 arch/arm/mach-bcm53xx/bcm53xx.c
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--- a/arch/arm/Kconfig
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+++ b/arch/arm/Kconfig
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@@ -922,6 +922,8 @@ source "arch/arm/mach-bcm/Kconfig"
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source "arch/arm/mach-bcm2835/Kconfig"
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+source "arch/arm/mach-bcm53xx/Kconfig"
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+
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source "arch/arm/mach-clps711x/Kconfig"
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source "arch/arm/mach-cns3xxx/Kconfig"
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--- a/arch/arm/Kconfig.debug
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+++ b/arch/arm/Kconfig.debug
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@@ -93,6 +93,10 @@ choice
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bool "Kernel low-level debugging on BCM2835 PL011 UART"
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depends on ARCH_BCM2835
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+ config DEBUG_BCM53XX
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+ bool "Kernel low-level debugging on BCM53XX UART1"
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+ depends on ARCH_BCM53XX
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+
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config DEBUG_CLPS711X_UART1
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bool "Kernel low-level debugging messages via UART1"
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depends on ARCH_CLPS711X
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@@ -620,6 +624,7 @@ endchoice
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config DEBUG_LL_INCLUDE
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string
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default "debug/bcm2835.S" if DEBUG_BCM2835
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+ default "debug/bcm53xx.S" if DEBUG_BCM53XX
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default "debug/cns3xxx.S" if DEBUG_CNS3XXX
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default "debug/exynos.S" if DEBUG_EXYNOS_UART
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default "debug/highbank.S" if DEBUG_HIGHBANK_UART
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--- a/arch/arm/Makefile
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+++ b/arch/arm/Makefile
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@@ -145,6 +145,7 @@ textofs-$(CONFIG_ARCH_MSM8960) := 0x0020
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machine-$(CONFIG_ARCH_AT91) += at91
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machine-$(CONFIG_ARCH_BCM) += bcm
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machine-$(CONFIG_ARCH_BCM2835) += bcm2835
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+machine-$(CONFIG_ARCH_BCM53XX) += bcm53xx
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machine-$(CONFIG_ARCH_CLPS711X) += clps711x
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machine-$(CONFIG_ARCH_CNS3XXX) += cns3xxx
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machine-$(CONFIG_ARCH_DAVINCI) += davinci
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--- a/arch/arm/boot/dts/Makefile
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+++ b/arch/arm/boot/dts/Makefile
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@@ -209,6 +209,7 @@ dtb-$(CONFIG_ARCH_VT8500) += vt8500-bv07
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wm8650-mid.dtb \
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wm8850-w70v2.dtb
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dtb-$(CONFIG_ARCH_ZYNQ) += zynq-zc702.dtb
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+dtb-$(CONFIG_ARCH_BCM53XX) += bcm5301-netgear-r6250.dtb
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targets += dtbs
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targets += $(dtb-y)
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--- /dev/null
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+++ b/arch/arm/boot/dts/bcm5301-netgear-r6250.dts
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@@ -0,0 +1,20 @@
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+/*
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+ * Broadcom BCM47XX / BCM53XX arm platform code.
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+ *
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+ * Copyright 2013 Hauke Mehrtens <hauke@hauke-m.de>
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+ *
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+ * Licensed under the GNU/GPL. See COPYING for details.
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+ */
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+
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+/dts-v1/;
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+
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+/include/ "bcm5301.dtsi"
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+
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+/ {
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+ model = "Netgear R6250 V1 (BCM4708)";
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+ compatible = "netgear,r6250v1", "brcm,bcm5301";
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+
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+ memory {
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+ reg = <0x00000000 0x08000000>;
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+ };
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+};
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--- /dev/null
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+++ b/arch/arm/boot/dts/bcm5301.dtsi
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@@ -0,0 +1,83 @@
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+/*
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+ * Broadcom BCM47XX / BCM53XX ARM platform code.
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+ *
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+ * Copyright 2013 Hauke Mehrtens <hauke@hauke-m.de>
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+ *
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+ * Licensed under the GNU/GPL. See COPYING for details.
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+ */
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+
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+/include/ "skeleton.dtsi"
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+
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+/ {
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+ compatible = "brcm,bcm5301";
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+ model = "BCM5301/BCM4707/BCM4708/BCM4709 SoC";
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+ interrupt-parent = <&gic>;
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+
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+ chosen {
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+ bootargs = "console=ttyS0,115200 earlyprintk debug vmalloc=64M";
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+ };
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+
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+ cpus {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+ cpu@0 {
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+ device_type = "cpu";
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+ compatible = "arm,cortex-a9";
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+ reg = <0>;
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+ };
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+ cpu@1 {
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+ device_type = "cpu";
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+ compatible = "arm,cortex-a9";
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+ reg = <1>;
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+ };
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+ };
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+
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+ clocks {
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+ clk_periph: periph {
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+ compatible = "fixed-clock";
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+ #clock-cells = <0>;
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+ clock-frequency = <400000000>;
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+ };
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+ };
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+
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+ uart@18000300 {
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+ compatible = "ns16550";
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+ reg = <0x18000300 0x100>;
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+ interrupts = <0 85 4>;
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+ clock-frequency = <100000000>;
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+ };
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+
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+ uart@18000400 {
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+ compatible = "ns16550";
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+ reg = <0x18000400 0x100>;
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+ interrupts = <0 85 4>;
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+ clock-frequency = <100000000>;
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+ };
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+
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+ gic: interrupt-controller@19021000 {
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+ compatible = "arm,cortex-a9-gic";
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+ #interrupt-cells = <3>;
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+ #address-cells = <0>;
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+ interrupt-controller;
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+ reg = <0x19021000 0x1000>,
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+ <0x19020100 0x100>;
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+ };
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+
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+ timer@19020200 {
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+ compatible = "arm,cortex-a9-global-timer";
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+ reg = <0x19020200 0x100>;
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+ interrupts = <1 11 0xf04>;
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+ clocks = <&clk_periph>;
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+ #clock-cells = <0>;
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+ };
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+
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+ local-timer@19020200 {
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+ compatible = "arm,cortex-a9-twd-timer";
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+ reg = <0x19020600 0x100>;
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+ interrupts = <1 13 0xf04>;
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+ };
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+};
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--- /dev/null
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+++ b/arch/arm/include/debug/bcm53xx.S
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@@ -0,0 +1,19 @@
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+/*
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+ * Macros used for EARLY_PRINTK, in low-level UART debug console
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+ *
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+ * Copyright 2013 Hauke Mehrtens <hauke@hauke-m.de>
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+ *
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+ * Licensed under the GNU/GPL. See COPYING for details.
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+ */
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+
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+#define BCM53XX_UART1_PHYS 0x18000300
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+#define BCM53XX_UART1_VIRT 0xf1000300
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+#define BCM53XX_UART1_SH 0
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+
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+ .macro addruart, rp, rv, tmp
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+ ldr \rp, =BCM53XX_UART1_PHYS @ MMU off, Physical
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+ ldr \rv, =BCM53XX_UART1_VIRT @ MMU on, Virtual
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+ .endm
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+
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+#define UART_SHIFT BCM53XX_UART1_SH
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+#include <asm/hardware/debug-8250.S>
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--- /dev/null
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+++ b/arch/arm/mach-bcm53xx/Kconfig
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@@ -0,0 +1,16 @@
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+config ARCH_BCM53XX
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+ bool "Broadcom BCM47XX / BCM53XX ARM SoC"
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+ select CPU_V7
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+ select ARM_GIC
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+ select HAVE_ARM_SCU if SMP
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+ select HAVE_ARM_TWD if LOCAL_TIMERS
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+ select HAVE_SMP
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+ select HAVE_CLK
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+ select LOCAL_TIMERS if SMP
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+ select GENERIC_TIME
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+ select GENERIC_CLOCKEVENTS_BUILD
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+ select GENERIC_CLOCKEVENTS
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+ select ARM_GLOBAL_TIMER
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+ select MIGHT_HAVE_PCI
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+ help
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+ Support for Broadcom BCM47XX and BCM53XX SoCs with ARM CPU cores.
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--- /dev/null
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+++ b/arch/arm/mach-bcm53xx/Makefile
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@@ -0,0 +1 @@
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+obj-y += bcm53xx.o
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--- /dev/null
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+++ b/arch/arm/mach-bcm53xx/bcm53xx.c
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@@ -0,0 +1,69 @@
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+/*
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+ * Broadcom BCM47XX / BCM53XX ARM platform code.
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+ *
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+ * Copyright 2013 Hauke Mehrtens <hauke@hauke-m.de>
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+ *
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+ * Licensed under the GNU/GPL. See COPYING for details.
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+ */
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+#include <linux/of_address.h>
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+#include <linux/of_platform.h>
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+#include <linux/irqchip.h>
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+#include <linux/clocksource.h>
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+#include <linux/clk-provider.h>
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+
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+#include <asm/mach/arch.h>
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+#include <asm/mach/map.h>
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+#include <asm/smp_scu.h>
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+#include <asm/signal.h>
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+
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+static int bcm53xx_abort_handler(unsigned long addr, unsigned int fsr,
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+ struct pt_regs *regs)
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+{
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+ /*
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+ * These happen for no good reason
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+ * possibly left over from CFE
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+ */
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+ pr_warn("External imprecise Data abort at addr=%#lx, fsr=%#x ignored.\n",
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+ addr, fsr);
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+
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+ /* Returning non-zero causes fault display and panic */
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+ return 0;
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+}
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+
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+static void bcm53xx_aborts_enable(void)
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+{
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+ /* Install our hook */
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+ hook_fault_code(16 + 6, bcm53xx_abort_handler, SIGBUS, 0,
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+ "imprecise external abort");
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+}
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+
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+static void __init bcm53xx_timer_init(void)
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+{
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+ of_clk_init(NULL);
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+ clocksource_of_init();
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+}
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+
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+void __init bcm53xx_map_io(void)
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+{
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+ debug_ll_io_init();
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+ bcm53xx_aborts_enable();
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+}
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+
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+static void __init bcm53xx_dt_init(void)
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+{
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+ of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
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+}
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+
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+static const char const *bcm53xx_dt_compat[] = {
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+ "brcm,bcm5301",
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+ "netgear,r6250v1",
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+ NULL,
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+};
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+
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+DT_MACHINE_START(BCM53XX, "BCM53XX")
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+ .init_machine = bcm53xx_dt_init,
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+ .map_io = bcm53xx_map_io,
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+ .init_irq = irqchip_init,
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+ .init_time = bcm53xx_timer_init,
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+ .dt_compat = bcm53xx_dt_compat,
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+MACHINE_END
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