[RFC PATCH 2/4] ARM: dts: Add SPI flash node for Peach boards

Javier Martinez Canillas
2015-05-19T13:34:52Z

From: Simon Glass <sjg@chromium.org>

Peach Pit and Pi machines have a SPI flash memory that is used to
store firmware and different system parameters and data.

Add information about the SPI flash chip so that user-space tools
can access it.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
---
arch/arm/boot/dts/exynos5420-peach-pit.dts | 26 ++++++++++++++++++++++++++
arch/arm/boot/dts/exynos5800-peach-pi.dts | 26 ++++++++++++++++++++++++++
2 files changed, 52 insertions(+)

diff --git a/arch/arm/boot/dts/exynos5420-peach-pit.dts b/arch/arm/boot/dts/exynos5420-peach-pit.dts
index 146e71118a72..8e88088d6815 100644
--- a/arch/arm/boot/dts/exynos5420-peach-pit.dts
+++ b/arch/arm/boot/dts/exynos5420-peach-pit.dts
@@ -892,6 +892,13 @@
samsung,pin-drv = <2>;
};

+ spi_flash_cs: spi-flash-cs {
+ samsung,pins = "gpa2-5";
+ samsung,pin-function = <1>;
+ samsung,pin-pud = <0>;
+ samsung,pin-drv = <3>;
+ };
+
usb300_vbus_en: usb300-vbus-en {
samsung,pins = "gph0-0";
samsung,pin-function = <1>;
@@ -921,6 +928,25 @@
clock-names = "rtc", "rtc_src";
};

+&spi_1 {
+ status = "okay";
+ samsung,spi-src-clk = <0>;
+ num-cs = <1>;
+ cs-gpios = <&gpa2 5 0>;
+
+ spidev@0 {
+ compatible = "google,spi-flash";
+ reg = <0>;
+ spi-max-frequency = <50000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi_flash_cs>;
+
+ controller-data {
+ samsung,spi-feedback-delay = <2>;
+ };
+ };
+};
+
&spi_2 {
status = "okay";
num-cs = <1>;
diff --git a/arch/arm/boot/dts/exynos5800-peach-pi.dts b/arch/arm/boot/dts/exynos5800-peach-pi.dts
index 02eb8b15374f..f2b89991b224 100644
--- a/arch/arm/boot/dts/exynos5800-peach-pi.dts
+++ b/arch/arm/boot/dts/exynos5800-peach-pi.dts
@@ -855,6 +855,13 @@
samsung,pin-drv = <2>;
};

+ spi_flash_cs: spi-flash-cs {
+ samsung,pins = "gpa2-5";
+ samsung,pin-function = <1>;
+ samsung,pin-pud = <0>;
+ samsung,pin-drv = <3>;
+ };
+
usb300_vbus_en: usb300-vbus-en {
samsung,pins = "gph0-0";
samsung,pin-function = <1>;
@@ -884,6 +891,25 @@
clock-names = "rtc", "rtc_src";
};

+&spi_1 {
+ status = "okay";
+ samsung,spi-src-clk = <0>;
+ num-cs = <1>;
+ cs-gpios = <&gpa2 5 0>;
+
+ spidev@0 {
+ compatible = "google,spi-flash";
+ reg = <0>;
+ spi-max-frequency = <50000000>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi_flash_cs>;
+
+ controller-data {
+ samsung,spi-feedback-delay = <2>;
+ };
+ };
+};
+
&spi_2 {
status = "okay";
num-cs = <1>;
--
2.1.4