From: FUKAUMI Naoki <naoki@radxa.com>
Date: Sun, 23 Jun 2024 02:33:28 +0000 (+0900)
Subject: arm64: dts: rockchip: add (but disabled) SFC node for Radxa ROCK 5A
X-Git-Tag: v6.11-rc1~188^2~30^2~21
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=00224650dd45e166ea6eb1593f5f064583963ccf;p=thirdparty%2Flinux.git

arm64: dts: rockchip: add (but disabled) SFC node for Radxa ROCK 5A

This commit adds SFC node for Radxa ROCK 5A.

since sdhci and sfc on RK3588s share pins(i.e. exclusive), it cannot
be enabled both nodes at the same time. so status = "okay" is omitted
here.

you may be able to enable sfc (and disable sdhci) by fdt overlay.

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/20240623023329.1044-2-naoki@radxa.com
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
---

diff --git a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
index c671a61d3aef5..4cc1790ebd081 100644
--- a/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3588s-rock-5a.dts
@@ -376,6 +376,19 @@
 	status = "okay";
 };
 
+&sfc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&fspim0_pins>;
+
+	flash@0 {
+		compatible = "jedec,spi-nor";
+		reg = <0>;
+		spi-max-frequency = <104000000>;
+		spi-rx-bus-width = <4>;
+		spi-tx-bus-width = <1>;
+	};
+};
+
 &spi2 {
 	status = "okay";
 	assigned-clocks = <&cru CLK_SPI2>;