[PATCH v2 02/12] at91: dt: sam9261: Basic Device Tree support for the at91sam9261ek
From: Jean-Jacques Hiblot <hidden>
Date: 2014-01-09 12:35:24
Also in:
lkml
Subsystem:
arm and arm64 soc sub-architectures (common parts), the rest · Maintainers:
Arnd Bergmann, Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij, Linus Torvalds
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 <redacted> --- 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@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"; + }; + }; +};
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1.8.5.2