From 9a5e553cb491691622b0c8e0ffa286a7a9202a31 Mon Sep 17 00:00:00 2001
From: Lokesh Vutla <lokeshvutla@ti.com>
Date: Thu, 13 Jun 2019 10:29:54 +0530
Subject: [PATCH] arm: dts: k3-j721e: Add initial support for common processor
 board

Common Processor board is the baseboard that has most of the actual connectors,
power supply etc. A SOM (System on Module) is plugged on to the common
processor board and this contains the SoC, PMIC, DDR and basic highspeed
components necessary for functionality. Add initial dt support for this
common processor board.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
---
 arch/arm/dts/Makefile                       |  1 +
 arch/arm/dts/k3-j721e-common-proc-board.dts | 63 +++++++++++++++++++++
 arch/arm/dts/k3-j721e-som-p0.dtsi           | 29 ++++++++++
 3 files changed, 93 insertions(+)
 create mode 100644 arch/arm/dts/k3-j721e-common-proc-board.dts
 create mode 100644 arch/arm/dts/k3-j721e-som-p0.dtsi

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index e985884d9a..50910be312 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -772,6 +772,7 @@ dtb-$(CONFIG_TARGET_STM32MP1) += \
 	stm32mp157c-ev1.dtb
 
 dtb-$(CONFIG_SOC_K3_AM6) += k3-am654-base-board.dtb k3-am654-r5-base-board.dtb
+dtb-$(CONFIG_SOC_K3_J721E) += k3-j721e-common-proc-board.dtb
 
 dtb-$(CONFIG_ARCH_MEDIATEK) += \
 	mt7623n-bananapi-bpi-r2.dtb \
diff --git a/arch/arm/dts/k3-j721e-common-proc-board.dts b/arch/arm/dts/k3-j721e-common-proc-board.dts
new file mode 100644
index 0000000000..b5b8c3c5cc
--- /dev/null
+++ b/arch/arm/dts/k3-j721e-common-proc-board.dts
@@ -0,0 +1,63 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+/dts-v1/;
+
+#include "k3-j721e-som-p0.dtsi"
+
+/ {
+	chosen {
+		stdout-path = "serial2:115200n8";
+		bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
+	};
+};
+
+&wkup_uart0 {
+	/* Wakeup UART is used by System firmware */
+	status = "disabled";
+};
+
+&main_uart3 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart5 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart6 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart7 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart8 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_uart9 {
+	/* UART not brought out */
+	status = "disabled";
+};
+
+&main_sdhci0 {
+	/* eMMC */
+	voltage-ranges = <1800 1800>;
+	non-removable;
+	ti,driver-strength-ohm = <50>;
+};
+
+&main_sdhci1 {
+	/* SD/MMC */
+	voltage-ranges = <1800 1800 3300 3300>;
+	ti,driver-strength-ohm = <50>;
+};
diff --git a/arch/arm/dts/k3-j721e-som-p0.dtsi b/arch/arm/dts/k3-j721e-som-p0.dtsi
new file mode 100644
index 0000000000..1884fc7014
--- /dev/null
+++ b/arch/arm/dts/k3-j721e-som-p0.dtsi
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
+ */
+
+/dts-v1/;
+
+#include "k3-j721e.dtsi"
+
+/ {
+	memory@80000000 {
+		device_type = "memory";
+		/* 4G RAM */
+		reg = <0x00000000 0x80000000 0x00000000 0x80000000>,
+		      <0x00000008 0x80000000 0x00000000 0x80000000>;
+	};
+
+	reserved_memory: reserved-memory {
+		#address-cells = <2>;
+		#size-cells = <2>;
+		ranges;
+
+		secure_ddr: optee@9e800000 {
+			reg = <0x00 0x9e800000 0x00 0x01800000>;
+			alignment = <0x1000>;
+			no-map;
+		};
+	};
+};
-- 
2.25.1