[PATCH v6] arm-soc: Add support for Sigma Designs Tango4 platforms
Marc Gonzalez
marc_gonzalez at sigmadesigns.com
Fri Oct 23 09:03:50 PDT 2015
Support Tango4 platforms (single and dual core SoCs) built around the
ARM Cortex-A9 MPCore. (Tango4 is not to be confused with Tango3, which
was built around the MIPS 74kf.)
Signed-off-by: Marc Gonzalez <marc_gonzalez at sigmadesigns.com>
---
Changes in v6
Move cpus and pmu nodes to SoC-specific dtsi
Add more compatible strings for eth and intc
Credit Mans for the initial DT
Changes in v5
drop mac-address property from eth0 node
tentatively add pmu node (not looking good)
Changes in v4
add memory node, cpus node, l2cc node
rewrite clkgen node, as requested by clk maintainers
---
arch/arm/Kconfig | 2 +
arch/arm/Makefile | 1 +
arch/arm/boot/dts/Makefile | 2 +
arch/arm/boot/dts/tango4-common.dtsi | 121 ++++++++++++++++++++++++++++++
arch/arm/boot/dts/tango4-smp8758.dtsi | 31 ++++++++
arch/arm/boot/dts/tango4-vantage-1172.dts | 19 +++++
arch/arm/mach-tangox/Kconfig | 12 +++
arch/arm/mach-tangox/Makefile | 1 +
arch/arm/mach-tangox/setup.c | 7 ++
9 files changed, 196 insertions(+)
create mode 100644 arch/arm/boot/dts/tango4-common.dtsi
create mode 100644 arch/arm/boot/dts/tango4-smp8758.dtsi
create mode 100644 arch/arm/boot/dts/tango4-vantage-1172.dts
create mode 100644 arch/arm/mach-tangox/Kconfig
create mode 100644 arch/arm/mach-tangox/Makefile
create mode 100644 arch/arm/mach-tangox/setup.c
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 1c5021002fe4..94a1a0277c94 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -934,6 +934,8 @@ source "arch/arm/mach-sunxi/Kconfig"
source "arch/arm/mach-prima2/Kconfig"
+source "arch/arm/mach-tangox/Kconfig"
+
source "arch/arm/mach-tegra/Kconfig"
source "arch/arm/mach-u300/Kconfig"
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index 7451b447cc2d..7fcb4c63cdf7 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -203,6 +203,7 @@ machine-$(CONFIG_ARCH_SOCFPGA) += socfpga
machine-$(CONFIG_ARCH_STI) += sti
machine-$(CONFIG_ARCH_STM32) += stm32
machine-$(CONFIG_ARCH_SUNXI) += sunxi
+machine-$(CONFIG_ARCH_TANGOX) += tangox
machine-$(CONFIG_ARCH_TEGRA) += tegra
machine-$(CONFIG_ARCH_U300) += u300
machine-$(CONFIG_ARCH_U8500) += ux500
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 246473a244f6..2499295051d5 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -605,6 +605,8 @@ dtb-$(CONFIG_MACH_SUN8I) += \
dtb-$(CONFIG_MACH_SUN9I) += \
sun9i-a80-optimus.dtb \
sun9i-a80-cubieboard4.dtb
+dtb-$(CONFIG_ARCH_TANGOX) += \
+ tango4-vantage-1172.dtb
dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += \
tegra20-harmony.dtb \
tegra20-iris-512.dtb \
diff --git a/arch/arm/boot/dts/tango4-common.dtsi b/arch/arm/boot/dts/tango4-common.dtsi
new file mode 100644
index 000000000000..594d7b2a110a
--- /dev/null
+++ b/arch/arm/boot/dts/tango4-common.dtsi
@@ -0,0 +1,121 @@
+/*
+ * Derived from Mans Rullgard's Tango3 DT
+ * https://github.com/mansr/linux-tangox
+ */
+
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ clocks {
+ ranges;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ xtal: xtal {
+ compatible = "fixed-clock";
+ clock-frequency = <27000000>;
+ #clock-cells = <0>;
+ };
+
+ clkgen: clkgen at 10000 {
+ compatible = "sigma,tango4-clkgen";
+ reg = <0x10000 0x40>;
+ clocks = <&xtal>;
+ clock-output-names = "cpuclk", "sysclk";
+ #clock-cells = <1>;
+ };
+ };
+
+ gic: interrupt-controller at 20001000 {
+ compatible = "arm,cortex-a9-gic";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ reg = <0x20001000 0x1000>, <0x20000100 0x0100>;
+ };
+
+ l2cc: l2-cache-controller at 20100000 {
+ compatible = "arm,pl310-cache";
+ reg = <0x20100000 0x1000>;
+ cache-level = <2>;
+ cache-unified;
+ };
+
+ periphclk: periphclk {
+ compatible = "fixed-factor-clock";
+ clocks = <&clkgen 0>;
+ clock-mult = <1>;
+ clock-div = <2>;
+ #clock-cells = <0>;
+ };
+
+ twd-timer at 20000600 {
+ compatible = "arm,cortex-a9-twd-timer";
+ reg = <0x20000600 0x10>;
+ interrupts = <GIC_PPI 13 0xf04>;
+ interrupt-parent = <&gic>;
+ clocks = <&periphclk>;
+ always-on;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ tick-counter at 10048 {
+ compatible = "sigma,tick-counter";
+ reg = <0x10048 0x4>;
+ clocks = <&xtal>;
+ };
+
+ uart: serial at 10700 {
+ compatible = "ralink,rt2880-uart";
+ reg = <0x10700 0x30>;
+ clock-frequency = <7372800>;
+ reg-shift = <2>;
+ };
+
+ eth0: ethernet at 26000 {
+ compatible = "sigma,tango4-ethernet", "sigma,smp8640-ethernet", "aurora,nb8800";
+ reg = <0x26000 0x800>;
+ interrupts = <38 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-parent = <&irq0>;
+ clocks = <&clkgen 1>;
+ };
+
+ interrupt-controller at 6e000 {
+ compatible = "sigma,tango4-intc", "sigma,smp8640-intc";
+ reg = <0x6e000 0x400>;
+ ranges = <0 0x6e000 0x400>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ irq0: irq0 at 6e000 {
+ reg = <0x000 0x100>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ irq1: irq1 at 6e100 {
+ reg = <0x100 0x100>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ irq2: irq2 at 6e300 {
+ reg = <0x300 0x100>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupts = <GIC_SPI 4 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/tango4-smp8758.dtsi b/arch/arm/boot/dts/tango4-smp8758.dtsi
new file mode 100644
index 000000000000..94c3e05f7d4c
--- /dev/null
+++ b/arch/arm/boot/dts/tango4-smp8758.dtsi
@@ -0,0 +1,31 @@
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+
+/ {
+ cpus {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ cpu0: cpu at 0 {
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&l2cc>;
+ device_type = "cpu";
+ reg = <0>;
+ };
+
+ cpu1: cpu at 1 {
+ compatible = "arm,cortex-a9";
+ next-level-cache = <&l2cc>;
+ device_type = "cpu";
+ reg = <1>;
+ };
+ };
+
+ pmu {
+ compatible = "arm,cortex-a9-pmu";
+ interrupt-affinity = <&cpu0>, <&cpu1>;
+ interrupt-parent = <&gic>;
+ interrupts =
+ <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ };
+};
diff --git a/arch/arm/boot/dts/tango4-vantage-1172.dts b/arch/arm/boot/dts/tango4-vantage-1172.dts
new file mode 100644
index 000000000000..c3f98e85e334
--- /dev/null
+++ b/arch/arm/boot/dts/tango4-vantage-1172.dts
@@ -0,0 +1,19 @@
+/dts-v1/;
+
+#include "tango4-smp8758.dtsi"
+#include "tango4-common.dtsi"
+
+/ {
+ model = "Sigma Designs SMP8758 Vantage-1172 dev board";
+ compatible = "sigma,vantage-1172", "sigma,smp8758", "sigma,tango4";
+
+ memory at 80000000 {
+ device_type = "memory";
+ reg = <0x80000000 0x80000000>; /* 2 GB */
+ };
+};
+
+ð0 {
+ phy-connection-type = "rgmii";
+ max-speed = <1000>;
+};
diff --git a/arch/arm/mach-tangox/Kconfig b/arch/arm/mach-tangox/Kconfig
new file mode 100644
index 000000000000..4d04952ed00f
--- /dev/null
+++ b/arch/arm/mach-tangox/Kconfig
@@ -0,0 +1,12 @@
+# Tango3 was based on MIPS 74kf. Tango4 is based on ARM Cortex-A9 MPCore.
+
+config ARCH_TANGOX
+ bool "Sigma Designs Tango4 (SMP87xx)" if ARCH_MULTI_V7
+ select ARCH_HAS_HOLES_MEMORYMODEL
+ select ARM_ERRATA_754322
+ select ARM_ERRATA_764369 if SMP
+ select ARM_GIC
+ select CLKSRC_TANGO_XTAL
+ select GENERIC_IRQ_CHIP
+ select HAVE_ARM_SCU
+ select HAVE_ARM_TWD
diff --git a/arch/arm/mach-tangox/Makefile b/arch/arm/mach-tangox/Makefile
new file mode 100644
index 000000000000..2b9dba458932
--- /dev/null
+++ b/arch/arm/mach-tangox/Makefile
@@ -0,0 +1 @@
+obj-y += setup.o
diff --git a/arch/arm/mach-tangox/setup.c b/arch/arm/mach-tangox/setup.c
new file mode 100644
index 000000000000..46ae91e49f81
--- /dev/null
+++ b/arch/arm/mach-tangox/setup.c
@@ -0,0 +1,7 @@
+#include <asm/mach/arch.h>
+
+static const char *tango_dt_compat[] = { "sigma,tango4", NULL };
+
+DT_MACHINE_START(TANGO_DT, "Sigma Tango DT")
+ .dt_compat = tango_dt_compat,
+MACHINE_END
--
2.4.5
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