[PATCH v2 06/18] ARM: am57xx: cl-som-am57x: dts: add spi-flash support

[Dmitry Lifshitz <lifshitz-UTxiZqZC01RS1MOuV/RT9w@public.gmane.org>]

On-board spi-flash chip is used as a main boot device.
Add spi-flash chip support (over QSPI bus).

Signed-off-by: Dmitry Lifshitz <lifshitz-UTxiZqZC01RS1MOuV/RT9w@public.gmane.org>
Acked-by: Igor Grinberg <grinberg-UTxiZqZC01RS1MOuV/RT9w@public.gmane.org>
---
 v2: 

 * Add "spi-max-frequency" property for &qspi node.

 arch/arm/boot/dts/am57xx-cl-som-am57x.dts | 43 +++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
index 196e7c7..9042185 100644
--- a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
+++ b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
@@ -93,6 +93,17 @@
 			DRA7XX_CORE_IOPAD(0x3498, PIN_INPUT_PULLUP | MUX_MODE1) /* gpmc_a22.mmc2_dat7 */
 		>;
 	};
+
+	qspi1_pins: pinmux_qspi1_pins {
+		pinctrl-single,pins = <
+			DRA7XX_CORE_IOPAD(0x3474, PIN_INPUT | MUX_MODE1)	/* gpmc_a13.qspi1_rtclk */
+			DRA7XX_CORE_IOPAD(0x3480, PIN_INPUT | MUX_MODE1)	/* gpmc_a16.qspi1_d0 */
+			DRA7XX_CORE_IOPAD(0x3484, PIN_INPUT | MUX_MODE1)	/* gpmc_a17.qspi1_d1 */
+			DRA7XX_CORE_IOPAD(0x3488, PIN_INPUT | MUX_MODE1)	/* qpmc_a18.qspi1_sclk */
+			DRA7XX_CORE_IOPAD(0x34b8, PIN_INPUT_PULLUP | MUX_MODE1)	/* gpmc_cs2.qspi1_cs0 */
+			DRA7XX_CORE_IOPAD(0x34bc, PIN_INPUT_PULLUP | MUX_MODE1)	/* gpmc_cs3.qspi1_cs1 */
+		>;
+	};
 };
 
 &i2c1 {
@@ -332,3 +343,35 @@
 	cap-mmc-dual-data-rate;
 };
 
+&qspi {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&qspi1_pins>;
+
+	spi-max-frequency = <20000000>;
+
+	spi_flash: spi_flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "jedec,spi-nor";
+		reg = <0>;				/* CS0 */
+		spi-max-frequency = <20000000>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <1>;
+
+		partition@0 {
+			label = "uboot";
+			reg = <0x0 0xc0000>;
+		};
+
+		partition@c0000 {
+			label = "uboot environment";
+			reg = <0xc0000 0x40000>;
+		};
+
+		partition@100000 {
+			label = "reserved";
+			reg = <0x100000 0x0>;
+		};
+	};
+};
-- 
1.9.1

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