diff mbox

[RFC,3/4] ARM: dts: Add SPI flash node to exynos5250-snow

Message ID 1432042454-19234-4-git-send-email-javier.martinez@collabora.co.uk (mailing list archive)
State New, archived
Headers show

Commit Message

Javier Martinez Canillas May 19, 2015, 1:34 p.m. UTC 
From: Doug Anderson <dianders@chromium.org>

Exynos5250 Snow machine has 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: Doug Anderson <dianders@chromium.org>
Reviewed-by: Olof Johansson <olofj@chromium.org>
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
---
 arch/arm/boot/dts/exynos5250-snow.dts | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

Comments

Krzysztof Kozlowski May 20, 2015, 3:38 a.m. UTC | #1 
On 19.05.2015 22:34, Javier Martinez Canillas wrote:
> From: Doug Anderson <dianders@chromium.org>
> 
> Exynos5250 Snow machine has 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: Doug Anderson <dianders@chromium.org>
> Reviewed-by: Olof Johansson <olofj@chromium.org>
> Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
> ---
>  arch/arm/boot/dts/exynos5250-snow.dts | 20 ++++++++++++++++++++
>  1 file changed, 20 insertions(+)

Acked-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

Best regards,
Krzysztof
diff mbox

Patch

diff --git a/arch/arm/boot/dts/exynos5250-snow.dts b/arch/arm/boot/dts/exynos5250-snow.dts
index 1eca97ee4bd6..e9a2dbe2e0b9 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -615,6 +615,13 @@ 
 		samsung,pin-drv = <0>;
 	};
 
+	spi_cs: spi-cs {
+		samsung,pins = "gpa2-5";
+		samsung,pin-function = <1>;
+		samsung,pin-pud = <0>;
+		samsung,pin-drv = <3>;
+	};
+
 	tps65090_irq: tps65090-irq {
 		samsung,pins = "gpx2-6";
 		samsung,pin-function = <0>;
@@ -690,6 +697,19 @@ 
 	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 = <10000000>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&spi_cs>;
+
+		controller-data {
+			samsung,spi-feedback-delay = <2>;
+		};
+	};
 };
 
 &usbdrd_dwc3 {