[PATCH v2 02/12] at91: dt: sam9261: Basic Device Tree support for the at91sam9261ek

Jean-Jacques Hiblot jjhiblot at traphandler.com
Thu Jan 9 07:31:39 EST 2014


This patch implements a simple DTS to boot a at91sam9261ek with a dt-enabled
kernel (at91_dt_defconfig).
Only dbgu, nand and watchdog are described in the DT.

Signed-off-by: Jean-Jacques Hiblot <jjhiblot at traphandler.com>
---
 arch/arm/boot/dts/Makefile          |  2 +
 arch/arm/boot/dts/at91sam9261ek.dts | 75 +++++++++++++++++++++++++++++++++++++
 2 files changed, 77 insertions(+)
 create mode 100644 arch/arm/boot/dts/at91sam9261ek.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 772a30e..ece523d 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -11,6 +11,8 @@ dtb-$(CONFIG_ARCH_AT91) += ethernut5.dtb
 dtb-$(CONFIG_ARCH_AT91) += evk-pro3.dtb
 dtb-$(CONFIG_ARCH_AT91) += tny_a9260.dtb
 dtb-$(CONFIG_ARCH_AT91) += usb_a9260.dtb
+# sam9261
+dtb-$(CONFIG_ARCH_AT91) += at91sam9261ek.dtb
 # sam9263
 dtb-$(CONFIG_ARCH_AT91) += at91sam9263ek.dtb
 dtb-$(CONFIG_ARCH_AT91) += tny_a9263.dtb
diff --git a/arch/arm/boot/dts/at91sam9261ek.dts b/arch/arm/boot/dts/at91sam9261ek.dts
new file mode 100644
index 0000000..f3d22a9
--- /dev/null
+++ b/arch/arm/boot/dts/at91sam9261ek.dts
@@ -0,0 +1,75 @@
+/*
+ * at91sam9261ek.dts - Device Tree file for Atmel at91sam9261 reference board
+ *
+ *  Copyright (C) 2013 Jean-Jacques Hiblot <jjhiblot at traphandler.com>
+ *
+ * Licensed under GPLv2 only.
+ */
+/dts-v1/;
+#include "at91sam9261.dtsi"
+
+/ {
+	model = "Atmel at91sam9261ek";
+	compatible = "atmel,at91sam9261ek", "atmel,at91sam9261", "atmel,at91sam9";
+
+	chosen {
+		bootargs = "mem=64M console=ttyS0,115200";
+	};
+
+	memory {
+		reg = <0x20000000 0x4000000>;
+	};
+
+	clocks {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		main_clock: clock at 0 {
+			compatible = "atmel,osc", "fixed-clock";
+			clock-frequency = <18432000>;
+		};
+	};
+
+	ahb {
+		apb {
+			dbgu: serial at fffff200 {
+				status = "okay";
+			};
+
+			watchdog at fffffd40 {
+				status = "okay";
+			};
+		};
+
+		nand0: nand at 40000000 {
+			nand-bus-width = <8>;
+			nand-ecc-mode = "soft";
+			nand-on-flash-bbt = <1>;
+			status = "okay";
+			at91bootstrap at 0 {
+				label = "at91bootstrap";
+				reg = <0x0 0x20000>;
+			};
+		};
+	};
+
+	leds {
+		compatible = "gpio-leds";
+		ds8 {
+			label = "ds8";
+			gpios = <&pioA 13 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "none";
+		};
+		ds7 {
+			label = "ds7";
+			gpios = <&pioA 14 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "nand-disk";
+		};
+		ds1 {
+			label = "ds1";
+			gpios = <&pioA 23 GPIO_ACTIVE_LOW>;
+			linux,default-trigger = "heartbeat";
+		};
+	};
+};
-- 
1.8.5.2




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