From 9604e0f29af739b2d6591a6cd25d295eaaaee2cb Mon Sep 17 00:00:00 2001
From: Pratyush Yadav <p.yadav@ti.com>
Date: Tue, 19 Apr 2022 16:14:48 +0530
Subject: [PATCH] arm: dts: k3-am62*: Add nodes for OSPI boot

Add nodes for OSPI support and enable them in SPL.

Signed-off-by: Pratyush Yadav <p.yadav@ti.com>
---
 arch/arm/dts/k3-am625-r5-sk.dts      |  5 ++
 arch/arm/dts/k3-am625-sk-u-boot.dtsi | 32 ++++++++++++
 arch/arm/dts/k3-am625-sk.dts         | 77 ++++++++++++++++++++++++++++
 3 files changed, 114 insertions(+)

diff --git a/arch/arm/dts/k3-am625-r5-sk.dts b/arch/arm/dts/k3-am625-r5-sk.dts
index 9adbe077b1..cd55bb4471 100644
--- a/arch/arm/dts/k3-am625-r5-sk.dts
+++ b/arch/arm/dts/k3-am625-r5-sk.dts
@@ -128,3 +128,8 @@
 	status = "okay";
 	u-boot,dm-spl;
 };
+
+&ospi0 {
+	reg = <0x00 0x0fc40000 0x00 0x100>,
+	      <0x00 0x60000000 0x00 0x08000000>;
+};
diff --git a/arch/arm/dts/k3-am625-sk-u-boot.dtsi b/arch/arm/dts/k3-am625-sk-u-boot.dtsi
index 056566af84..20c24d2fa7 100644
--- a/arch/arm/dts/k3-am625-sk-u-boot.dtsi
+++ b/arch/arm/dts/k3-am625-sk-u-boot.dtsi
@@ -150,3 +150,35 @@
 &cpsw_port2 {
 	status = "disabled";
 };
+
+&main_bcdma {
+	u-boot,dm-spl;
+};
+
+&main_pktdma {
+	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;
+
+			partition@3fc0000 {
+				u-boot,dm-spl;
+			};
+		};
+	};
+};
diff --git a/arch/arm/dts/k3-am625-sk.dts b/arch/arm/dts/k3-am625-sk.dts
index 64b960e570..083fdfd059 100644
--- a/arch/arm/dts/k3-am625-sk.dts
+++ b/arch/arm/dts/k3-am625-sk.dts
@@ -23,6 +23,7 @@
 		mmc2 = &sdhci2;
 		usb0 = &usb0;
 		usb1 = &usb1;
+		spi0 = &ospi0;
 	};
 
 	chosen {
@@ -262,6 +263,22 @@
 			AM62X_IOPAD(0x0258, PIN_OUTPUT, 0) /* (F18) USB1_DRVVBUS */
 		>;
 	};
+
+	ospi0_pins_default: ospi0-pins-default {
+		pinctrl-single,pins = <
+			AM62X_IOPAD(0x000, PIN_OUTPUT, 0) /* (H24) OSPI0_CLK */
+			AM62X_IOPAD(0x02c, PIN_OUTPUT, 0) /* (F23) OSPI0_CSn0 */
+			AM62X_IOPAD(0x00c, PIN_INPUT, 0) /* (E25) OSPI0_D0 */
+			AM62X_IOPAD(0x010, PIN_INPUT, 0) /* (G24) OSPI0_D1 */
+			AM62X_IOPAD(0x014, PIN_INPUT, 0) /* (F25) OSPI0_D2 */
+			AM62X_IOPAD(0x018, PIN_INPUT, 0) /* (F24) OSPI0_D3 */
+			AM62X_IOPAD(0x01c, PIN_INPUT, 0) /* (J23) OSPI0_D4 */
+			AM62X_IOPAD(0x020, PIN_INPUT, 0) /* (J25) OSPI0_D5 */
+			AM62X_IOPAD(0x024, PIN_INPUT, 0) /* (H25) OSPI0_D6 */
+			AM62X_IOPAD(0x028, PIN_INPUT, 0) /* (J22) OSPI0_D7 */
+			AM62X_IOPAD(0x008, PIN_INPUT, 0) /* (J24) OSPI0_DQS */
+		>;
+	};
 };
 
 &wkup_uart0 {
@@ -420,3 +437,63 @@
 		ti,mbox-tx = <1 0 0>;
 	};
 };
+
+&ospi0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&ospi0_pins_default>;
+
+	flash@0{
+		compatible = "jedec,spi-nor";
+		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 = <4>;
+		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@800000 {
+				label = "ospi.rootfs";
+				reg = <0x800000 0x37c0000>;
+			};
+
+			partition@3fc0000 {
+				label = "ospi.phypattern";
+				reg = <0x3fc0000 0x40000>;
+			};
+		};
+	};
+};