[PATCH] arm-soc: Add Sigma Designs Tango4 port
Mason
slash.tmp at free.fr
Fri Oct 2 09:02:04 PDT 2015
Add support for Tango4-based SoCs (SMP8756, SMP8758)
Signed-off-by: Marc Gonzalez <marc_gonzalez at sigmadesigns.com>
---
NOTE: Mans reviewed the patch, and noted that the proposed
clock tree is too simplified. I have an upcoming patch fixing
that issue.
---
arch/arm/Kconfig | 2 +
arch/arm/Makefile | 1 +
arch/arm/boot/dts/Makefile | 2 +
arch/arm/boot/dts/tango4.dtsi | 117 +++++++++++++++++++++++++++++++++++++
arch/arm/boot/dts/vantage-1172.dts | 8 +++
arch/arm/mach-tangox/Kconfig | 12 ++++
arch/arm/mach-tangox/Makefile | 1 +
arch/arm/mach-tangox/setup.c | 7 +++
8 files changed, 150 insertions(+)
create mode 100644 arch/arm/boot/dts/tango4.dtsi
create mode 100644 arch/arm/boot/dts/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..42ba8b1be0d5 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-$(CONFIG_ARCH_TANGOX) += \
+ vantage-1172.dtb
dtb-$(CONFIG_ARCH_TEGRA_2x_SOC) += \
tegra20-harmony.dtb \
tegra20-iris-512.dtb \
diff --git a/arch/arm/boot/dts/tango4.dtsi b/arch/arm/boot/dts/tango4.dtsi
new file mode 100644
index 000000000000..7336fcc3ac1d
--- /dev/null
+++ b/arch/arm/boot/dts/tango4.dtsi
@@ -0,0 +1,117 @@
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+ compatible = "sigma,tango4-soc";
+
+ #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>;
+ };
+
+ sysclk: sysclk {
+ compatible = "fixed-clock";
+ clock-frequency = <396000000>;
+ #clock-cells = <0>;
+ };
+
+ cpuclk: cpuclk {
+ compatible = "fixed-clock";
+ clock-frequency = <999000000>;
+ #clock-cells = <0>;
+ };
+
+ periphclk: periphclk {
+ compatible = "fixed-factor-clock";
+ clocks = <&cpuclk>;
+ clock-mult = <1>;
+ clock-div = <2>;
+ #clock-cells = <0>;
+ };
+ };
+
+ gic: gic at 20001000 {
+ compatible = "arm,cortex-a9-gic";
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ reg = <0x20001000 0x1000>,
+ <0x20000100 0x0100>;
+ };
+
+ twd-timer at 20000600 {
+ compatible = "arm,cortex-a9-twd-timer";
+ reg = <0x20000600 0x10>;
+ interrupts = <1 13 0xf01>;
+ interrupt-parent = <&gic>;
+ clocks = <&periphclk>;
+ twd_never_stops;
+ };
+
+ soc {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ xtal_in_cnt {
+ compatible = "sigma,xtal_in_cnt";
+ reg = <0x10048 0x4>;
+ clocks = <&xtal>;
+ };
+
+ uart0 {
+ compatible = "ralink,rt2880-uart";
+ reg = <0x10700 0x100>;
+ clock-frequency = <7372800>;
+ reg-shift = <2>;
+/* fifo-size = <16>; BROKEN */
+ };
+
+ eth0: eth0 {
+ compatible = "sigma,smp8640-emac";
+ reg = <0x26000 0x800>;
+ interrupts = <38 4>;
+ interrupt-parent = <&irq0>;
+ mac-address = [ 00 16 e8 02 08 42 ];
+ clocks = <&sysclk>;
+ };
+
+ intc: intc at e000 {
+ compatible = "sigma,tango-intc";
+ reg = <0x6e000 0x1000>;
+ interrupt-parent = <&gic>;
+ interrupt-controller;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ irq0: irq0 at 000 {
+ reg = <0x000 0x100>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupts = <0 2 4>;
+ };
+
+ irq1: irq1 at 100 {
+ reg = <0x100 0x100>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupts = <0 3 4>;
+ };
+
+ irq2: irq2 at 300 {
+ reg = <0x300 0x100>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+ interrupts = <0 4 4>;
+ };
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/vantage-1172.dts b/arch/arm/boot/dts/vantage-1172.dts
new file mode 100644
index 000000000000..56f6babe7093
--- /dev/null
+++ b/arch/arm/boot/dts/vantage-1172.dts
@@ -0,0 +1,8 @@
+/dts-v1/;
+
+#include "tango4.dtsi"
+
+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..152cdd487056
--- /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 GENERIC_IRQ_CHIP
+ select HAVE_ARM_SCU
+ select HAVE_ARM_TWD
+ select SERIAL_8250_RT288X if SERIAL_8250
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..14baf14bbd49
--- /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-soc", NULL };
+
+DT_MACHINE_START(TANGO_DT, "Sigma TangoX DT")
+ .dt_compat = tango_dt_compat,
+MACHINE_END
--
2.4.5
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