linux-kernel - [PATCH 6/9] ARM: at91/dt: add spi0 support to at91rm9200ek board

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Date:	Wed, 28 Aug 2013 13:07:32 +0200
From:	Boris BREZILLON <b.brezillon@...rkiz.com>
To:	Rob Herring <rob.herring@...xeda.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Stephen Warren <swarren@...dotorg.org>,
	Ian Campbell <ian.campbell@...rix.com>,
	Russell King <linux@....linux.org.uk>,
	Jean-Christophe PLAGNIOL-VILLARD <plagnioj@...osoft.com>,
	Nicolas Ferre <nicolas.ferre@...el.com>,
	Joachim Eastwood <manabian@...il.com>
Cc:	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	Boris BREZILLON <b.brezillon@...rkiz.com>
Subject: [PATCH 6/9] ARM: at91/dt: add spi0 support to at91rm9200ek board

Add spi0 cs3 switch pinctrl pin definitions: this pin is used to select
between mmc0 slot0 and spi dataflash connected to cs3.

Enable spi0 controller and define the mtd_dataflash connected to cs0.

Signed-off-by: Boris BREZILLON <b.brezillon@...rkiz.com>
---
 arch/arm/boot/dts/at91rm9200ek.dts |   20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/at91rm9200ek.dts b/arch/arm/boot/dts/at91rm9200ek.dts
index 2bad423..b3e7425 100644
--- a/arch/arm/boot/dts/at91rm9200ek.dts
+++ b/arch/arm/boot/dts/at91rm9200ek.dts
@@ -56,6 +56,13 @@
 							<AT91_PIOB 22 AT91_PERIPH_GPIO (AT91_PINCTRL_OUTPUT | AT91_PINCTRL_OUTPUT_VAL(1))>;
 					};
 				};
+
+				spi0 {
+					pinctrl_spi0_cs3_switch: spi0_cs3_switch-0 {
+						atmel,pins =
+							<AT91_PIOB 22 AT91_PERIPH_GPIO (AT91_PINCTRL_OUTPUT | AT91_PINCTRL_OUTPUT_VAL(0))>;
+					};
+				};
 			};
 
 			dbgu: serial@...ff200 {
@@ -119,6 +126,19 @@
 					wp-gpios = <&pioA 17 GPIO_ACTIVE_HIGH>;
 				};
 			};
+
+			spi0: spi@...e0000 {
+				pinctrl-0 = <&pinctrl_spi0 &pinctrl_spi0_cs0>;
+				cs-gpios = <&pioA 3 GPIO_ACTIVE_HIGH>, <0>,
+					   <0>, <0>;
+				status = "okay";
+
+				mtd_dataflash@0 {
+					compatible = "atmel,at45", "atmel,dataflash";
+					spi-max-frequency = <15000000>;
+					reg = <0>;
+				};
+			};
 		};
 
 		usb0: ohci@...00000 {
-- 
1.7.9.5

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