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From:   Vignesh Raghavendra <vigneshr@ti.com>
To:     Nishanth Menon <nm@ti.com>, Vignesh Raghavendra <vigneshr@ti.com>,
        Tero Kristo <kristo@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
        Conor Dooley <conor+dt@kernel.org>
CC:     <linux-arm-kernel@lists.infradead.org>,
        <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH 3/3] arm64: dts: ti: Add support for the AM62P5-SK
Date:   Thu, 10 Aug 2023 10:23:14 +0530
Message-ID: <20230810045314.2676833-4-vigneshr@ti.com>
In-Reply-To: <20230810045314.2676833-1-vigneshr@ti.com>
References: <20230810045314.2676833-1-vigneshr@ti.com>
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From: Bryan Brattlof <bb@ti.com>

Add basic support for the AM62P5-SK platform with UART and ramdisk as
rootfs.

Schematics is at https://www.ti.com/lit/zip/sprr487

Signed-off-by: Bryan Brattlof <bb@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
---
 arch/arm64/boot/dts/ti/Makefile         |   3 +
 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts | 169 ++++++++++++++++++++++++
 2 files changed, 172 insertions(+)
 create mode 100644 arch/arm64/boot/dts/ti/k3-am62p5-sk.dts

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 437a3d7e8e3a..5a09cad74c44 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -23,6 +23,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk.dtb
 # Boards with AM62Ax SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb
 
+# Boards with AM62Px SoC
+dtb-$(CONFIG_ARCH_K3) += k3-am62p5-sk.dtb
+
 # Boards with AM64x SoC
 dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
 dtb-$(CONFIG_ARCH_K3) += k3-am642-phyboard-electra-rdk.dtb
diff --git a/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
new file mode 100644
index 000000000000..b0882211448e
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62p5-sk.dts
@@ -0,0 +1,169 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree file for the AM62P5-SK
+ * Copyright (C) 2023 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ * Schematics: https://www.ti.com/lit/zip/sprr487
+ */
+
+/dts-v1/;
+
+#include "k3-am62p5.dtsi"
+
+/ {
+	compatible = "ti,am62p5-sk", "ti,am62p5";
+	model = "Texas Instruments AM62P5 SK";
+
+	aliases {
+		serial0 = &wkup_uart0;
+		serial2 = &main_uart0;
+		serial3 = &main_uart1;
+	};
+
+	chosen {
+		stdout-path = "serial2:115200n8";
+	};
+
+	memory@80000000 {
+		/* 8G RAM */
+		reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
+		      <0x00000008 0x80000000 0x00000001 0x80000000>;
+		device_type = "memory";
+		bootph-pre-ram;
+	};
+
+	reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		secure_tfa_ddr: tfa@9e780000 {
+			reg = <0x00 0x9e780000 0x00 0x80000>;
+			alignment = <0x1000>;
+			no-map;
+		};
+
+		secure_ddr: optee@9e800000 {
+			reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
+			alignment = <0x1000>;
+			no-map;
+		};
+
+		wkup_r5fss0_core0_memory_region: r5f-dma-memory@9c900000 {
+			compatible = "shared-dma-pool";
+			reg = <0x00 0x9c900000 0x00 0x01e00000>;
+			no-map;
+		};
+	};
+};
+
+&cbass_main {
+	bootph-pre-ram;
+};
+
+&main_pmx0 {
+	status = "okay";
+	bootph-pre-ram;
+
+	main_uart0_pins_default: main-uart0-default-pins {
+		bootph-pre-ram;
+		pinctrl-single,pins = <
+			AM62PX_IOPAD(0x1c8, PIN_INPUT, 0)	/* (A22) UART0_RXD */
+			AM62PX_IOPAD(0x1cc, PIN_OUTPUT, 0)	/* (B22) UART0_TXD */
+			AM62PX_IOPAD(0x1d0, PIN_INPUT, 0)	/* (A23) UART0_CTSn */
+			AM62PX_IOPAD(0x1d4, PIN_OUTPUT, 0)	/* (C22) UART0_RTSn */
+		>;
+	};
+
+	main_uart1_pins_default: main-uart1-default-pins {
+		bootph-pre-ram;
+		pinctrl-single,pins = <
+			AM62PX_IOPAD(0x194, PIN_INPUT, 2)	/* (D25) MCASP0_AXR3 */
+			AM62PX_IOPAD(0x198, PIN_OUTPUT, 2)	/* (E25) MCASP0_AXR2 */
+			AM62PX_IOPAD(0x1ac, PIN_INPUT, 2)	/* (G23) MCASP0_AFSR */
+			AM62PX_IOPAD(0x1b0, PIN_OUTPUT, 2)	/* (G20) MCASP0_ACLKR */
+		>;
+	};
+};
+
+&main_timer0 {
+	bootph-pre-ram;
+};
+
+&main_uart0 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_uart0_pins_default>;
+	status = "okay";
+	bootph-pre-ram;
+};
+
+&main_uart1 {
+	/* Main UART1 is used by TIFS firmware */
+	pinctrl-names = "default";
+	pinctrl-0 = <&main_uart1_pins_default>;
+	status = "reserved";
+	bootph-pre-ram;
+};
+
+&cbass_mcu {
+	bootph-pre-ram;
+};
+
+&mcu_pmx0 {
+	status = "okay";
+	bootph-pre-ram;
+
+	wkup_uart0_pins_default: wkup-uart0-default-pins {
+		bootph-pre-ram;
+		pinctrl-single,pins = <
+			AM62PX_MCU_IOPAD(0x02c, PIN_INPUT, 0)	/* (C7) WKUP_UART0_CTSn */
+			AM62PX_MCU_IOPAD(0x030, PIN_OUTPUT, 0)	/* (C6) WKUP_UART0_RTSn */
+			AM62PX_MCU_IOPAD(0x024, PIN_INPUT, 0)	/* (D8) WKUP_UART0_RXD */
+			AM62PX_MCU_IOPAD(0x028, PIN_OUTPUT, 0)	/* (D7) WKUP_UART0_TXD */
+		>;
+	};
+};
+
+&cbass_wakeup {
+	bootph-pre-ram;
+};
+
+&wkup_uart0 {
+	/* WKUP UART0 is used by DM firmware */
+	pinctrl-names = "default";
+	pinctrl-0 = <&wkup_uart0_pins_default>;
+	status = "reserved";
+	bootph-pre-ram;
+};
+
+&wkup_conf {
+	bootph-pre-ram;
+};
+
+&chipid {
+	bootph-pre-ram;
+};
+
+&dmss {
+	bootph-pre-ram;
+};
+
+&dmsc {
+	bootph-pre-ram;
+};
+
+&k3_pds {
+	bootph-pre-ram;
+};
+
+&k3_clks {
+	bootph-pre-ram;
+};
+
+&k3_reset {
+	bootph-pre-ram;
+};
+
+&secure_proxy_main {
+	bootph-pre-ram;
+};
-- 
2.41.0