ARM: dts: renesas: blanche: Add FLASH node

Add a device node for the Spansion S29GL512S NOR FLASH on the Blanche
development board.  This FLASH resides in the external address space of
the Local Bus State Controller.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/7edb26bc29ad58198901ae6b6f869684473bb29d.1693481518.git.geert+renesas@glider.be

diff --git a/arch/arm/boot/dts/renesas/r8a7792-blanche.dts b/arch/arm/boot/dts/renesas/r8a7792-blanche.dts
index e793134f32a3020a92be41ccece08ebefcad7559..4ee83b8aae2a4f19ab19c3d79327c8bfc4fe8e4b 100644 (file)
--- a/arch/arm/boot/dts/renesas/r8a7792-blanche.dts
+++ b/arch/arm/boot/dts/renesas/r8a7792-blanche.dts
@@ -182,6 +182,35 @@
 };
 
 &lbsc {
+       flash@0 {
+               compatible = "cfi-flash";
+               reg = <0x00000000 0x04000000>;
+               pinctrl-0 = <&flash_pins>;
+               pinctrl-names = "default";
+               bank-width = <2>;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       partition@0 {
+                               label = "uboot";
+                               reg = <0x00000000 0x00040000>;
+                               read-only;
+                       };
+                       partition@40000 {
+                               label = "uboot-env";
+                               reg = <0x00040000 0x00040000>;
+                               read-only;
+                       };
+                       partition@80000 {
+                               label = "flash";
+                               reg = <0x00080000 0x03f80000>;
+                       };
+               };
+       };
+
        ethernet@18000000 {
                compatible = "smsc,lan89218", "smsc,lan9115";
                reg = <0x18000000 0x100>;
@@ -240,6 +269,11 @@
                function = "du1";
        };
 
+       flash_pins: flash {
+               groups = "lbsc_cs0";
+               function = "lbsc";
+       };
+
        keyboard_pins: keyboard {
                pins = "GP_3_10", "GP_3_11", "GP_3_12", "GP_3_15", "GP_11_2";
                bias-pull-up;