arm64: dts: rockchip: add SFC support for Radxa ROCK 5B

This commit adds support for SPI NOR flash on Radxa ROCK 5B.

SPI NOR flash chip may vary, so use safe(lowest) spi-max-frequency.

Signed-off-by: FUKAUMI Naoki <naoki@radxa.com>
Link: https://lore.kernel.org/r/20240623023329.1044-1-naoki@radxa.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

diff --git a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
index 2e47f8091cdaac0139318b5c4b8b234e3f0117a2..d0ba3bf16fc61743f03ef7657455ae5e01eda77c 100644 (file)
--- a/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588-rock-5b.dts
@@ -448,6 +448,20 @@
        status = "okay";
 };
 
+&sfc {
+       pinctrl-names = "default";
+       pinctrl-0 = <&fspim2_pins>;
+       status = "okay";
+
+       flash@0 {
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <104000000>;
+               spi-rx-bus-width = <4>;
+               spi-tx-bus-width = <1>;
+       };
+};
+
 &uart6 {
        pinctrl-names = "default";
        pinctrl-0 = <&uart6m1_xfer &uart6m1_ctsn &uart6m1_rtsn>;