arm: dts: k3-am62a: Add OSPI NAND

AM62A SK has a W35 OSPI NAND connected to OSPI controller. Add DT nodes
for the same.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>

4 files changed, 132 insertions, 0 deletions

diff --git a/arch/arm/dts/k3-am62a-main.dtsi b/arch/arm/dts/k3-am62a-main.dtsi
index fb7f9cd126..174fd809cb 100644
--- a/arch/arm/dts/k3-am62a-main.dtsi
+++ b/arch/arm/dts/k3-am62a-main.dtsi
@@ -549,4 +549,30 @@
 		resets = <&k3_reset 208 1>;
 		firmware-name = "am62a-c71_0-fw";
 	};
+
+	fss: bus@fc00000 {
+		compatible = "simple-bus";
+		reg = <0x00 0x0fc00000 0x00 0x70000>;
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+		status = "disabled";
+
+		ospi0: spi@fc40000 {
+			compatible = "ti,am654-ospi", "cdns,qspi-nor";
+			reg = <0x00 0x0fc40000 0x00 0x100>,
+			      <0x05 0x00000000 0x01 0x00000000>;
+			interrupts = <GIC_SPI 139 IRQ_TYPE_LEVEL_HIGH>;
+			cdns,fifo-depth = <256>;
+			cdns,fifo-width = <4>;
+			cdns,trigger-address = <0x0>;
+			clocks = <&k3_clks 75 7>;
+			assigned-clocks = <&k3_clks 75 7>;
+			assigned-clock-parents = <&k3_clks 75 8>;
+			assigned-clock-rates = <166666666>;
+			power-domains = <&k3_pds 75 TI_SCI_PD_EXCLUSIVE>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+		};
+	};
 };
diff --git a/arch/arm/dts/k3-am62a7-r5-sk.dts b/arch/arm/dts/k3-am62a7-r5-sk.dts
index ea2e202237..29a162b611 100644
--- a/arch/arm/dts/k3-am62a7-r5-sk.dts
+++ b/arch/arm/dts/k3-am62a7-r5-sk.dts
@@ -149,3 +149,8 @@
 &main_bcdma {
 	ti,sci = <&dm_tifs>;
 };
+
+&ospi0 {
+	reg = <0x00 0x0fc40000 0x00 0x100>,
+	      <0x00 0x60000000 0x00 0x08000000>;
+};
diff --git a/arch/arm/dts/k3-am62a7-sk-u-boot.dtsi b/arch/arm/dts/k3-am62a7-sk-u-boot.dtsi
index 69bfc378e1..6f0c583603 100644
--- a/arch/arm/dts/k3-am62a7-sk-u-boot.dtsi
+++ b/arch/arm/dts/k3-am62a7-sk-u-boot.dtsi
@@ -192,3 +192,23 @@
 &usb0 {
 	u-boot,dm-spl;
 };
+
+&fss {
+	u-boot,dm-spl;
+};
+
+&ospi0_pins_default {
+	u-boot,dm-spl;
+};
+
+&ospi0 {
+	u-boot,dm-spl;
+
+	flash@0 {
+		u-boot,dm-spl;
+
+		partitions {
+			u-boot,dm-spl;
+		};
+	};
+};
diff --git a/arch/arm/dts/k3-am62a7-sk.dts b/arch/arm/dts/k3-am62a7-sk.dts
index be14f74078..b08f72fd32 100644
--- a/arch/arm/dts/k3-am62a7-sk.dts
+++ b/arch/arm/dts/k3-am62a7-sk.dts
@@ -22,6 +22,7 @@
 		mmc1 = &sdhci1;
 		remoteproc0 = &mcu_r5fss0_core0;
 		remoteproc1 = &c7x_0;
+		spi0 = &ospi0;
 	};
 
 	chosen {
@@ -250,6 +251,22 @@
 			AM62AX_IOPAD(0x164, PIN_INPUT, 0) /* (Y19) RGMII2_TX_CTL */
 		>;
 	};
+
+	ospi0_pins_default: ospi0-pins-default {
+		pinctrl-single,pins = <
+			AM62AX_IOPAD(0x000, PIN_OUTPUT, 0) /* (H24) OSPI0_CLK */
+			AM62AX_IOPAD(0x02c, PIN_OUTPUT, 0) /* (F23) OSPI0_CSn0 */
+			AM62AX_IOPAD(0x00c, PIN_INPUT, 0) /* (E25) OSPI0_D0 */
+			AM62AX_IOPAD(0x010, PIN_INPUT, 0) /* (G24) OSPI0_D1 */
+			AM62AX_IOPAD(0x014, PIN_INPUT, 0) /* (F25) OSPI0_D2 */
+			AM62AX_IOPAD(0x018, PIN_INPUT, 0) /* (F24) OSPI0_D3 */
+			AM62AX_IOPAD(0x01c, PIN_INPUT, 0) /* (J23) OSPI0_D4 */
+			AM62AX_IOPAD(0x020, PIN_INPUT, 0) /* (J25) OSPI0_D5 */
+			AM62AX_IOPAD(0x024, PIN_INPUT, 0) /* (H25) OSPI0_D6 */
+			AM62AX_IOPAD(0x028, PIN_INPUT, 0) /* (J22) OSPI0_D7 */
+			AM62AX_IOPAD(0x008, PIN_INPUT, 0) /* (J24) OSPI0_DQS */
+		>;
+	};
 };
 
 &cpsw3g {
@@ -388,3 +405,67 @@
 &usb0 {
 	dr_mode = "peripheral";
 };
+
+&fss {
+	status = "okay";
+};
+
+&ospi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ospi0_pins_default>;
+
+	flash@0{
+		compatible = "spi-nand";
+		reg = <0x0>;
+		spi-tx-bus-width = <8>;
+		spi-rx-bus-width = <8>;
+		spi-max-frequency = <25000000>;
+		cdns,tshsl-ns = <60>;
+		cdns,tsd2d-ns = <60>;
+		cdns,tchsh-ns = <60>;
+		cdns,tslch-ns = <60>;
+		cdns,read-delay = <2>;
+		cdns,phy-mode;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition@0 {
+				label = "ospi.tiboot3";
+				reg = <0x0 0x80000>;
+			};
+
+			partition@80000 {
+				label = "ospi.tispl";
+				reg = <0x80000 0x200000>;
+			};
+
+			partition@280000 {
+				label = "ospi.u-boot";
+				reg = <0x280000 0x400000>;
+			};
+
+			partition@680000 {
+				label = "ospi.env";
+				reg = <0x680000 0x40000>;
+			};
+
+			partition@6c0000 {
+				label = "ospi.env.backup";
+				reg = <0x6c0000 0x40000>;
+			};
+
+			partition@2000000 {
+				label = "ospi.rootfs";
+				reg = <0x2000000 0x5fc0000>;
+			};
+
+			partition@7fc0000 {
+				label = "ospi.phypattern";
+				reg = <0x7fc0000 0x40000>;
+			};
+		};
+	};
+};