[PATCH 2/2] ARM: device trees for Energy Micro's EFM32 Cortex-M3 SoCs
Uwe Kleine-König
u.kleine-koenig at pengutronix.de
Mon Dec 16 14:11:37 EST 2013
Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
---
arch/arm/boot/dts/Makefile | 1 +
arch/arm/boot/dts/armv7-m.dtsi | 18 ++++
arch/arm/boot/dts/efm32gg-dk3750.dts | 86 ++++++++++++++++++
arch/arm/boot/dts/efm32gg.dtsi | 172 +++++++++++++++++++++++++++++++++++
4 files changed, 277 insertions(+)
create mode 100644 arch/arm/boot/dts/armv7-m.dtsi
create mode 100644 arch/arm/boot/dts/efm32gg-dk3750.dts
create mode 100644 arch/arm/boot/dts/efm32gg.dtsi
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index d57c1a6..e4a0bea 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -52,6 +52,7 @@ dtb-$(CONFIG_ARCH_DOVE) += dove-cm-a510.dtb \
dove-d2plug.dtb \
dove-d3plug.dtb \
dove-dove-db.dtb
+dtb-$(CONFIG_ARCH_EFM32) += efm32gg-dk3750.dtb
dtb-$(CONFIG_ARCH_EXYNOS) += exynos4210-origen.dtb \
exynos4210-smdkv310.dtb \
exynos4210-trats.dtb \
diff --git a/arch/arm/boot/dts/armv7-m.dtsi b/arch/arm/boot/dts/armv7-m.dtsi
new file mode 100644
index 0000000..5a660d0
--- /dev/null
+++ b/arch/arm/boot/dts/armv7-m.dtsi
@@ -0,0 +1,18 @@
+#include "skeleton.dtsi"
+
+/ {
+ nvic: nv-interrupt-controller {
+ compatible = "arm,armv7m-nvic";
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ reg = <0xe000e100 0xc00>;
+ };
+
+ soc {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "simple-bus";
+ interrupt-parent = <&nvic>;
+ ranges;
+ };
+};
diff --git a/arch/arm/boot/dts/efm32gg-dk3750.dts b/arch/arm/boot/dts/efm32gg-dk3750.dts
new file mode 100644
index 0000000..aa5c0f6
--- /dev/null
+++ b/arch/arm/boot/dts/efm32gg-dk3750.dts
@@ -0,0 +1,86 @@
+/*
+ * Device tree for EFM32GG-DK3750 development board.
+ *
+ * Documentation available from
+ * http://www.silabs.com/Support%20Documents/TechnicalDocs/efm32gg-dk3750-ug.pdf
+ */
+
+/dts-v1/;
+#include "efm32gg.dtsi"
+
+/ {
+ model = "Energy Micro Giant Gecko Development Kit";
+ compatible = "efm32,dk3750";
+
+ chosen {
+ bootargs = "console=ttyefm4,115200 init=/linuxrc ignore_loglevel ihash_entries=64 dhash_entries=64 earlyprintk uclinux.physaddr=0x8c400000 root=/dev/mtdblock0";
+ };
+
+ memory {
+ reg = <0x88000000 0x400000>;
+ };
+
+ soc {
+ adc at 40002000 {
+ status = "ok";
+ };
+
+ i2c at 4000a000 {
+ location = <3>;
+ status = "ok";
+
+ temp at 48 {
+ compatible = "st,stds75";
+ reg = <0x48>;
+ };
+
+ eeprom at 50 {
+ compatible = "microchip,24c02";
+ reg = <0x50>;
+ pagesize = <16>;
+ };
+ };
+
+ spi0: spi at 4000c000 { /* USART0 */
+ cs-gpios = <&gpio 68 1>; // E4
+ location = <1>;
+ status = "ok";
+
+ microsd at 0 {
+ compatible = "mmc-spi-slot";
+ spi-max-frequency = <100000>;
+ voltage-ranges = <3200 3400>;
+ broken-cd;
+ reg = <0>;
+ };
+ };
+
+ spi1: spi at 4000c400 { /* USART1 */
+ cs-gpios = <&gpio 51 1>; // D3
+ location = <1>;
+ status = "ok";
+
+ ks8851 at 0 {
+ compatible = "ks8851";
+ spi-max-frequency = <6000000>;
+ reg = <0>;
+ interrupt-parent = <&boardfpga>;
+ interrupts = <4>;
+ };
+ };
+
+ uart4: uart at 4000e400 { /* UART1 */
+ location = <2>;
+ status = "ok";
+ };
+
+ boardfpga: boardfpga {
+ compatible = "efm32board";
+ reg = <0x80000000 0x400>;
+ irq-gpios = <&gpio 64 1>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ status = "ok";
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/efm32gg.dtsi b/arch/arm/boot/dts/efm32gg.dtsi
new file mode 100644
index 0000000..a342ab0
--- /dev/null
+++ b/arch/arm/boot/dts/efm32gg.dtsi
@@ -0,0 +1,172 @@
+/*
+ * Device tree for Energy Micro EFM32 Giant Gecko SoC.
+ *
+ * Documentation available from
+ * http://www.silabs.com/Support%20Documents/TechnicalDocs/EFM32GG-RM.pdf
+ */
+#include "armv7-m.dtsi"
+#include "dt-bindings/clock/efm32-cmu.h"
+
+/ {
+ aliases {
+ i2c0 = &i2c0;
+ i2c1 = &i2c1;
+ serial0 = &uart0;
+ serial1 = &uart1;
+ serial2 = &uart2;
+ serial3 = &uart3;
+ serial4 = &uart4;
+ spi0 = &spi0;
+ spi1 = &spi1;
+ spi2 = &spi2;
+ };
+
+ soc {
+ adc: adc at 40002000 {
+ compatible = "efm32,adc";
+ reg = <0x40002000 0x400>;
+ interrupts = <7>;
+ clocks = <&cmu clk_HFPERCLKADC0>;
+ status = "disabled";
+ };
+
+ gpio: gpio at 40006000 {
+ compatible = "efm32,gpio";
+ reg = <0x40006000 0x1000>;
+ interrupts = <1 11>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ interrupt-controller;
+ #interrupt-cells = <1>;
+ clocks = <&cmu clk_HFPERCLKGPIO>;
+ status = "ok";
+ };
+
+ i2c0: i2c at 4000a000 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "efm32,i2c";
+ reg = <0x4000a000 0x400>;
+ interrupts = <9>;
+ clocks = <&cmu clk_HFPERCLKI2C0>;
+ clock-frequency = <100000>;
+ status = "disabled";
+ };
+
+ i2c1: i2c at 4000a400 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "efm32,i2c";
+ reg = <0x4000a400 0x400>;
+ interrupts = <10>;
+ clocks = <&cmu clk_HFPERCLKI2C1>;
+ clock-frequency = <100000>;
+ status = "disabled";
+ };
+
+ spi0: spi at 4000c000 { /* USART0 */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "efm32,spi";
+ reg = <0x4000c000 0x400>;
+ interrupts = <3 4>;
+ clocks = <&cmu clk_HFPERCLKUSART0>;
+ status = "disabled";
+ };
+
+ spi1: spi at 4000c400 { /* USART1 */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "efm32,spi";
+ reg = <0x4000c400 0x400>;
+ interrupts = <15 16>;
+ clocks = <&cmu clk_HFPERCLKUSART1>;
+ status = "disabled";
+ };
+
+ spi2: spi at 40x4000c800 { /* USART2 */
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "efm32,spi";
+ reg = <0x4000c800 0x400>;
+ interrupts = <18 19>;
+ clocks = <&cmu clk_HFPERCLKUSART2>;
+ status = "disabled";
+ };
+
+ uart0: uart at 4000c000 { /* USART0 */
+ compatible = "efm32,uart";
+ reg = <0x4000c000 0x400>;
+ interrupts = <3 4>;
+ clocks = <&cmu clk_HFPERCLKUSART0>;
+ status = "disabled";
+ };
+
+ uart1: uart at 4000c400 { /* USART1 */
+ compatible = "efm32,uart";
+ reg = <0x4000c400 0x400>;
+ interrupts = <15 16>;
+ clocks = <&cmu clk_HFPERCLKUSART1>;
+ status = "disabled";
+ };
+
+ uart2: uart at 40x4000c800 { /* USART2 */
+ compatible = "efm32,uart";
+ reg = <0x4000c800 0x400>;
+ interrupts = <18 19>;
+ clocks = <&cmu clk_HFPERCLKUSART2>;
+ status = "disabled";
+ };
+
+ uart3: uart at 4000e000 { /* UART0 */
+ compatible = "efm32,uart";
+ reg = <0x4000e000 0x400>;
+ interrupts = <20 21>;
+ clocks = <&cmu clk_HFPERCLKUART0>;
+ status = "disabled";
+ };
+
+ uart4: uart at 4000e400 { /* UART1 */
+ compatible = "efm32,uart";
+ reg = <0x4000e400 0x400>;
+ interrupts = <22 23>;
+ clocks = <&cmu clk_HFPERCLKUART1>;
+ status = "disabled";
+ };
+
+ timer0: timer at 40010000 {
+ compatible = "efm32,timer";
+ reg = <0x40010000 0x400>;
+ interrupts = <2>;
+ clocks = <&cmu clk_HFPERCLKTIMER0>;
+ };
+
+ timer1: timer at 40010400 {
+ compatible = "efm32,timer";
+ reg = <0x40010400 0x400>;
+ interrupts = <12>;
+ clocks = <&cmu clk_HFPERCLKTIMER1>;
+ };
+
+ timer2: timer at 40010800 {
+ compatible = "efm32,timer";
+ reg = <0x40010800 0x400>;
+ interrupts = <13>;
+ clocks = <&cmu clk_HFPERCLKTIMER2>;
+ };
+
+ timer3: timer at 40010c00 {
+ compatible = "efm32,timer";
+ reg = <0x40010c00 0x400>;
+ interrupts = <14>;
+ clocks = <&cmu clk_HFPERCLKTIMER3>;
+ };
+
+ cmu: cmu at 400c8000 {
+ compatible = "efm32gg,cmu";
+ reg = <0x400c8000 0x400>;
+ interrupts = <32>;
+ #clock-cells = <1>;
+ };
+ };
+};
--
1.8.4.4
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