[PATCH v4 3/3] riscv: dts: spacemit: k3: Add UFS support

[Yixun Lan]

Add UFS Host Controller support for SpacemiT K3 SoC, and enable
it both on Pico-ITX and CoM260-IFX boards.

Tested-by: Aurelien Jarno <aurelien at aurel32.net>
Signed-off-by: Yixun Lan <dlan at kernel.org>
---
 arch/riscv/boot/dts/spacemit/k3-com260.dtsi  |  4 ++++
 arch/riscv/boot/dts/spacemit/k3-pico-itx.dts |  4 ++++
 arch/riscv/boot/dts/spacemit/k3.dtsi         | 22 ++++++++++++++++++++++
 3 files changed, 30 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k3-com260.dtsi b/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
index 37627963a649..3251ee8405de 100644
--- a/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k3-com260.dtsi
@@ -220,3 +220,7 @@ &uart0 {
 	pinctrl-0 = <&uart0_0_cfg>;
 	status = "okay";
 };
+
+&ufshc {
+	status = "okay";
+};
diff --git a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
index b084a35aa00e..6369602e81da 100644
--- a/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
+++ b/arch/riscv/boot/dts/spacemit/k3-pico-itx.dts
@@ -307,6 +307,10 @@ &uart0 {
 	status = "okay";
 };
 
+&ufshc {
+	status = "okay";
+};
+
 &usb2_host {
 	#address-cells = <1>;
 	#size-cells = <0>;
diff --git a/arch/riscv/boot/dts/spacemit/k3.dtsi b/arch/riscv/boot/dts/spacemit/k3.dtsi
index c3f2dce0969c..436c0e7e2838 100644
--- a/arch/riscv/boot/dts/spacemit/k3.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k3.dtsi
@@ -513,6 +513,28 @@ usb2_phy: phy at c0a20000 {
 			status = "disabled";
 		};
 
+		ufshc: ufshc at c0e00000 {
+			compatible = "spacemit,k3-ufshc";
+			reg = <0x0 0xc0e00000 0x0 0x40000>;
+			clocks = <&syscon_apmu CLK_APMU_UFS_ACLK>,
+				 <&syscon_apmu CLK_APMU_UFS_REFCLK>;
+			clock-names = "aclk", "ref_clk";
+			resets = <&syscon_apmu RESET_APMU_UFS_ACLK>;
+			interrupts = <135 IRQ_TYPE_LEVEL_HIGH>;
+			lanes-per-direction = <2>;
+			operating-points-v2 = <&ufs_opp_table>;
+			status = "disabled";
+
+			ufs_opp_table: opp-table {
+				compatible = "operating-points-v2";
+
+				opp-1 {
+					opp-hz = /bits/ 64 <491520000>,
+						 /bits/ 64 <19200000>;
+				};
+			};
+		};
+
 		eth0: ethernet at cac80000 {
 			compatible = "spacemit,k3-dwmac", "snps,dwmac-5.40a";
 			reg = <0x0 0xcac80000 0x0 0x2000>;

-- 
2.55.0