Merge tag 'bcm63138-v4' of http://github.com/brcm/linux into next/soc
Merge "ARM: BCM: Broadcom BCM63138 support" from Florian Fainelli:
This patchset adds very minimal support for the BCM63138 SoC which is
a xDSL SoC using a dual Cortex A9 CPU complex.
* tag 'bcm63138-v4' of http://github.com/brcm/linux:
MAINTAINERS: add entry for the Broadcom BCM63xx ARM SoCs
ARM: BCM63XX: add BCM963138DVT Reference platform DTS
ARM: BCM63XX: add BCM63138 minimal Device Tree
ARM: BCM63XX: add low-level UART debug support
ARM: BCM63XX: add basic support for the Broadcom BCM63138 DSL SoC
Conflicts:
arch/arm/Kconfig.debug
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
diff --git a/Documentation/devicetree/bindings/arm/bcm/bcm63138.txt b/Documentation/devicetree/bindings/arm/bcm/bcm63138.txt
new file mode 100644
index 0000000..bd49987
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/bcm/bcm63138.txt
@@ -0,0 +1,9 @@
+Broadcom BCM63138 DSL System-on-a-Chip device tree bindings
+-----------------------------------------------------------
+
+Boards compatible with the BCM63138 DSL System-on-a-Chip should have the
+following properties:
+
+Required root node property:
+
+compatible: should be "brcm,bcm63138"
diff --git a/MAINTAINERS b/MAINTAINERS
index cf24bb5..be403bc 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2033,6 +2033,14 @@
F: arch/arm/boot/dts/bcm5301x.dtsi
F: arch/arm/boot/dts/bcm470*
+BROADCOM BCM63XX ARM ARCHITECTURE
+M: Florian Fainelli <f.fainelli@gmail.com>
+L: linux-arm-kernel@lists.infradead.org
+T: git git://git.github.com/brcm/linux.git
+S: Maintained
+F: arch/arm/mach-bcm/bcm63xx.c
+F: arch/arm/include/debug/bcm63xx.S
+
BROADCOM BCM7XXX ARM ARCHITECTURE
M: Marc Carino <marc.ceeeee@gmail.com>
M: Brian Norris <computersforpeace@gmail.com>
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index 2dc9f6cd..22ebff9 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -122,6 +122,11 @@
mobile SoCs in the Kona family of chips (e.g. bcm28155,
bcm11351, etc...)
+ config DEBUG_BCM63XX
+ bool "Kernel low-level debugging on BCM63XX UART"
+ depends on ARCH_BCM_63XX
+ select DEBUG_UART_BCM63XX
+
config DEBUG_BERLIN_UART
bool "Marvell Berlin SoC Debug UART"
depends on ARCH_BERLIN
@@ -1062,6 +1067,7 @@
default "debug/vf.S" if DEBUG_VF_UART
default "debug/vt8500.S" if DEBUG_VT8500_UART0
default "debug/zynq.S" if DEBUG_ZYNQ_UART0 || DEBUG_ZYNQ_UART1
+ default "debug/bcm63xx.S" if DEBUG_UART_BCM63XX
default "mach/debug-macro.S"
# Compatibility options for PL01x
@@ -1081,6 +1087,10 @@
ARCH_IOP33X || ARCH_IXP4XX || \
ARCH_LPC32XX || ARCH_MV78XX0 || ARCH_ORION5X || ARCH_RPC
+# Compatibility options for BCM63xx
+config DEBUG_UART_BCM63XX
+ def_bool ARCH_BCM_63XX
+
config DEBUG_UART_PHYS
hex "Physical base address of debug UART"
default 0x01c20000 if DEBUG_DAVINCI_DMx_UART0
@@ -1149,11 +1159,13 @@
default 0xffc02000 if DEBUG_SOCFPGA_UART
default 0xffd82340 if ARCH_IOP13XX
default 0xfff36000 if DEBUG_HIGHBANK_UART
+ default 0xfffe8600 if DEBUG_UART_BCM63XX
default 0xfffff700 if ARCH_IOP33X
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
DEBUG_LL_UART_EFM32 || \
DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
- DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART
+ DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
+ DEBUG_UART_BCM63XX
config DEBUG_UART_VIRT
hex "Virtual base address of debug UART"
@@ -1186,6 +1198,7 @@
default 0xfa71e000 if DEBUG_QCOM_UARTDM
default 0xfb009000 if DEBUG_REALVIEW_STD_PORT
default 0xfb10c000 if DEBUG_REALVIEW_PB1176_PORT
+ default 0xfcfe8600 if DEBUG_UART_BCM63XX
default 0xfd000000 if ARCH_SPEAR3XX || ARCH_SPEAR6XX
default 0xfd000000 if ARCH_SPEAR13XX
default 0xfd012000 if ARCH_MV78XX0
@@ -1224,7 +1237,8 @@
default DEBUG_UART_PHYS if !MMU
depends on DEBUG_LL_UART_8250 || DEBUG_LL_UART_PL01X || \
DEBUG_UART_8250 || DEBUG_UART_PL01X || DEBUG_MESON_UARTAO || \
- DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART
+ DEBUG_MSM_UART || DEBUG_QCOM_UARTDM || DEBUG_S3C24XX_UART || \
+ DEBUG_UART_BCM63XX
config DEBUG_UART_8250_SHIFT
int "Register offset shift for the 8250 debug UART"
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 22aba85..1a471d7 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -53,6 +53,7 @@
dtb-$(CONFIG_ARCH_AXXIA) += axm5516-amarillo.dtb
dtb-$(CONFIG_ARCH_BCM2835) += bcm2835-rpi-b.dtb
dtb-$(CONFIG_ARCH_BCM_5301X) += bcm4708-netgear-r6250.dtb
+dtb-$(CONFIG_ARCH_BCM_63XX) += bcm963138dvt.dtb
dtb-$(CONFIG_ARCH_BCM_MOBILE) += bcm28155-ap.dtb \
bcm21664-garnet.dtb
dtb-$(CONFIG_ARCH_BERLIN) += \
diff --git a/arch/arm/boot/dts/bcm63138.dtsi b/arch/arm/boot/dts/bcm63138.dtsi
new file mode 100644
index 0000000..f3bb2dd
--- /dev/null
+++ b/arch/arm/boot/dts/bcm63138.dtsi
@@ -0,0 +1,134 @@
+/*
+ * Broadcom BCM63138 DSL SoCs Device Tree
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+#include "skeleton.dtsi"
+
+/ {
+ compatible = "brcm,bcm63138";
+ model = "Broadcom BCM63138 DSL SoC";
+ interrupt-parent = <&gic>;
+
+ aliases {
+ uart0 = &serial0;
+ uart1 = &serial1;
+ };
+
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu@0 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&L2>;
+ reg = <0>;
+ };
+
+ cpu@1 {
+ device_type = "cpu";
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&L2>;
+ reg = <1>;
+ };
+ };
+
+ clocks {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ arm_timer_clk: arm_timer_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <500000000>;
+ };
+
+ periph_clk: periph_clk {
+ #clock-cells = <0>;
+ compatible = "fixed-clock";
+ clock-frequency = <50000000>;
+ clock-output-names = "periph";
+ };
+ };
+
+ /* ARM bus */
+ axi@80000000 {
+ compatible = "simple-bus";
+ ranges = <0 0x80000000 0x784000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ L2: cache-controller@1d000 {
+ compatible = "arm,pl310-cache";
+ reg = <0x1d000 0x1000>;
+ cache-unified;
+ cache-level = <2>;
+ cache-sets = <16>;
+ cache-size = <0x80000>;
+ interrupts = <GIC_PPI 0 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ scu: scu@1e000 {
+ compatible = "arm,cortex-a9-scu";
+ reg = <0x1e000 0x100>;
+ };
+
+ gic: interrupt-controller@1e100 {
+ compatible = "arm,cortex-a9-gic";
+ reg = <0x1f000 0x1000
+ 0x1e100 0x100>;
+ #interrupt-cells = <3>;
+ #address-cells = <0>;
+ interrupt-controller;
+ };
+
+ global_timer: timer@1e200 {
+ compatible = "arm,cortex-a9-global-timer";
+ reg = <0x1e200 0x20>;
+ interrupts = <GIC_PPI 11 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&arm_timer_clk>;
+ };
+
+ local_timer: local-timer@1e600 {
+ compatible = "arm,cortex-a9-twd-timer";
+ reg = <0x1e600 0x20>;
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&arm_timer_clk>;
+ };
+
+ twd_watchdog: watchdog@1e620 {
+ compatible = "arm,cortex-a9-twd-wdt";
+ reg = <0x1e620 0x20>;
+ interupts = <GIC_PPI 14 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+
+ /* Legacy UBUS base */
+ ubus@fffe8000 {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges = <0 0xfffe8000 0x8100>;
+
+ serial0: serial@600 {
+ compatible = "brcm,bcm6345-uart";
+ reg = <0x600 0x1b>;
+ interrupts = <GIC_SPI 32 0>;
+ clocks = <&periph_clk>;
+ clock-names = "periph";
+ status = "disabled";
+ };
+
+ serial1: serial@620 {
+ compatible = "brcm,bcm6345-uart";
+ reg = <0x620 0x1b>;
+ interrupts = <GIC_SPI 33 0>;
+ clocks = <&periph_clk>;
+ clock-names = "periph";
+ status = "disabled";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/bcm963138dvt.dts b/arch/arm/boot/dts/bcm963138dvt.dts
new file mode 100644
index 0000000..69c9339
--- /dev/null
+++ b/arch/arm/boot/dts/bcm963138dvt.dts
@@ -0,0 +1,30 @@
+/*
+ * Broadcom BCM63138 Reference Board DTS
+ */
+
+/dts-v1/;
+
+#include "bcm63138.dtsi"
+
+/ {
+ compatible = "brcm,BCM963138DVT", "brcm,bcm63138";
+ model = "Broadcom BCM963138DVT";
+
+ chosen {
+ bootargs = "console=ttyS0,115200";
+ stdout-path = &serial0;
+ };
+
+ memory {
+ reg = <0x0 0x08000000>;
+ };
+
+};
+
+&serial0 {
+ status = "okay";
+};
+
+&serial1 {
+ status = "okay";
+};
diff --git a/arch/arm/include/debug/bcm63xx.S b/arch/arm/include/debug/bcm63xx.S
new file mode 100644
index 0000000..e7164d5
--- /dev/null
+++ b/arch/arm/include/debug/bcm63xx.S
@@ -0,0 +1,33 @@
+/*
+ * Broadcom BCM63xx low-level UART debug
+ *
+ * Copyright (C) 2014 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/serial_bcm63xx.h>
+
+ .macro addruart, rp, rv, tmp
+ ldr \rp, =CONFIG_DEBUG_UART_PHYS
+ ldr \rv, =CONFIG_DEBUG_UART_VIRT
+ .endm
+
+ .macro senduart, rd, rx
+ /* word access do not work */
+ strb \rd, [\rx, #UART_FIFO_REG]
+ .endm
+
+ .macro waituart, rd, rx
+1001: ldr \rd, [\rx, #UART_IR_REG]
+ tst \rd, #(1 << UART_IR_TXEMPTY)
+ beq 1001b
+ .endm
+
+ .macro busyuart, rd, rx
+1002: ldr \rd, [\rx, #UART_IR_REG]
+ tst \rd, #(1 << UART_IR_TXTRESH)
+ beq 1002b
+ .endm
diff --git a/arch/arm/mach-bcm/Kconfig b/arch/arm/mach-bcm/Kconfig
index fc93800..2abad74 100644
--- a/arch/arm/mach-bcm/Kconfig
+++ b/arch/arm/mach-bcm/Kconfig
@@ -99,6 +99,23 @@
different SoC or with the older BCM47XX and BCM53XX based
network SoC using a MIPS CPU, they are supported by arch/mips/bcm47xx
+config ARCH_BCM_63XX
+ bool "Broadcom BCM63xx DSL SoC" if ARCH_MULTI_V7
+ depends on MMU
+ select ARM_ERRATA_754322
+ select ARM_ERRATA_764369 if SMP
+ select ARM_GIC
+ select ARM_GLOBAL_TIMER
+ select CACHE_L2X0
+ select HAVE_ARM_ARCH_TIMER
+ select HAVE_ARM_TWD if SMP
+ select HAVE_ARM_SCU if SMP
+ select HAVE_SMP
+ help
+ This enables support for systems based on Broadcom DSL SoCs.
+ It currently supports the 'BCM63XX' ARM-based family, which includes
+ the BCM63138 variant.
+
config ARCH_BRCMSTB
bool "Broadcom BCM7XXX based boards" if ARCH_MULTI_V7
depends on MMU
diff --git a/arch/arm/mach-bcm/Makefile b/arch/arm/mach-bcm/Makefile
index b19a396..300ae4b 100644
--- a/arch/arm/mach-bcm/Makefile
+++ b/arch/arm/mach-bcm/Makefile
@@ -34,6 +34,9 @@
# BCM5301X
obj-$(CONFIG_ARCH_BCM_5301X) += bcm_5301x.o
+# BCM63XXx
+obj-$(CONFIG_ARCH_BCM_63XX) := bcm63xx.o
+
ifeq ($(CONFIG_ARCH_BRCMSTB),y)
obj-y += brcmstb.o
endif
diff --git a/arch/arm/mach-bcm/bcm63xx.c b/arch/arm/mach-bcm/bcm63xx.c
new file mode 100644
index 0000000..c4c66ae
--- /dev/null
+++ b/arch/arm/mach-bcm/bcm63xx.c
@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2014 Broadcom Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/of_platform.h>
+
+#include <asm/mach/arch.h>
+
+static const char * const bcm63xx_dt_compat[] = {
+ "brcm,bcm63138",
+ NULL
+};
+
+DT_MACHINE_START(BCM63XXX_DT, "BCM63xx DSL SoC")
+ .dt_compat = bcm63xx_dt_compat,
+ .l2c_aux_val = 0,
+ .l2c_aux_mask = ~0,
+MACHINE_END