ARM: dts: am57xx: cl-som-am57x: add spi-flash support

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@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/am57xx-cl-som-am57x.dts b/arch/arm/boot/dts/am57xx-cl-som-am57x.dts
index ef94845..f7e163a 100644 (file)
--- 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 {
@@ -331,3 +342,34 @@
        ti,non-removable;
        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 = "spansion,m25p80", "jedec,spi-nor";
+               reg = <0>;                              /* CS0 */
+               spi-max-frequency = <20000000>;
+
+               partition@0 {
+                       label = "uboot";
+                       reg = <0x0 0xc0000>;
+               };
+
+               partition@c0000 {
+                       label = "uboot environment";
+                       reg = <0xc0000 0x40000>;
+               };
+
+               partition@100000 {
+                       label = "reserved";
+                       reg = <0x100000 0x0>;
+               };
+       };
+};