ARM: dts: am57xx-idk-common: Enable support for QSPI

AM571x and AM572x IDK have a spansion s25fl256s QSPI flash on the board
connected to TI QSPI over CS0. Hence, add QSPI and flash slave
DT nodes.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>

diff --git a/arch/arm/dts/am57xx-idk-common.dtsi b/arch/arm/dts/am57xx-idk-common.dtsi
index 2805b68..a5bcd25 100644 (file)
--- a/arch/arm/dts/am57xx-idk-common.dtsi
+++ b/arch/arm/dts/am57xx-idk-common.dtsi
@@ -300,3 +300,52 @@
        ti,non-removable;
        max-frequency = <96000000>;
 };
+
+&qspi {
+       status = "okay";
+
+       spi-max-frequency = <76800000>;
+       m25p80@0 {
+               compatible = "s25fl256s1","spi-flash";
+               spi-max-frequency = <76800000>;
+               reg = <0>;
+               spi-tx-bus-width = <1>;
+               spi-rx-bus-width = <4>;
+               #address-cells = <1>;
+               #size-cells = <1>;
+
+               /* MTD partition table.
+                * The ROM checks the first four physical blocks
+                * for a valid file to boot and the flash here is
+                * 64KiB block size.
+                */
+               partition@0 {
+                       label = "QSPI.SPL";
+                       reg = <0x00000000 0x000040000>;
+               };
+               partition@1 {
+                       label = "QSPI.u-boot";
+                       reg = <0x00040000 0x00100000>;
+               };
+               partition@2 {
+                       label = "QSPI.u-boot-spl-os";
+                       reg = <0x00140000 0x00080000>;
+               };
+               partition@3 {
+                       label = "QSPI.u-boot-env";
+                       reg = <0x001c0000 0x00010000>;
+               };
+               partition@4 {
+                       label = "QSPI.u-boot-env.backup1";
+                       reg = <0x001d0000 0x0010000>;
+               };
+               partition@5 {
+                       label = "QSPI.kernel";
+                       reg = <0x001e0000 0x0800000>;
+               };
+               partition@6 {
+                       label = "QSPI.file-system";
+                       reg = <0x009e0000 0x01620000>;
+               };
+       };
+};