From 7d1a10659f5bacee8e3404fa201523f3393ceff9 Mon Sep 17 00:00:00 2001
From: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Date: Fri, 4 Aug 2023 12:08:08 +0200
Subject: board: toradex: add verdin am62 support

This adds initial support for the Toradex Verdin AM62 Quad 1GB WB IT
V1.0A module and subsequent V1.1 launch configuration SKUs. They are
strapped to boot from their on-module eMMC. U-Boot supports booting
from the on-module eMMC only, DFU support is disabled for now due to
missing AM62x USB support.

The device trees were taken straight from Linux v6.5-rc1.

Boot sequence is:
SYSFW ---> R5 SPL (both in tiboot3.bin) ---> ATF (TF-A) ---> OP-TEE
  ---> A53 SPL (part of tispl.bin) ---> U-boot proper (u-boot.img)

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
Reviewed-by: Nishanth Menon <nm@ti.com>
---
 include/configs/verdin-am62.h | 55 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 include/configs/verdin-am62.h

(limited to 'include')

diff --git a/include/configs/verdin-am62.h b/include/configs/verdin-am62.h
new file mode 100644
index 00000000000..7990ea83102
--- /dev/null
+++ b/include/configs/verdin-am62.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Configuration header file for Verdin AM62 SoM
+ *
+ * Copyright 2023 Toradex - https://www.toradex.com/
+ */
+
+#ifndef __VERDIN_AM62_H
+#define __VERDIN_AM62_H
+
+#define RAMDISK_ADDR_R		0x90300000
+#define SCRIPTADDR		0x90280000
+
+/* DDR Configuration */
+#define CFG_SYS_SDRAM_BASE	0x80000000
+#define CFG_SYS_SDRAM_BASE1	0x880000000
+#define CFG_SYS_SDRAM_SIZE	SZ_2G /* Maximum supported size */
+
+#define MEM_LAYOUT_ENV_SETTINGS \
+	"fdt_addr_r=0x90200000\0" \
+	"kernel_addr_r=" __stringify(CONFIG_SYS_LOAD_ADDR) "\0" \
+	"kernel_comp_addr_r=0x80200000\0" \
+	"kernel_comp_size=0x08000000\0" \
+	"ramdisk_addr_r=" __stringify(RAMDISK_ADDR_R) "\0" \
+	"scriptaddr=" __stringify(SCRIPTADDR) "\0"
+
+#if CONFIG_TARGET_VERDIN_AM62_A53
+/* Enable Distro Boot */
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 1) \
+	func(MMC, mmc, 0) \
+	func(DHCP, dhcp, na)
+#include <config_distro_bootcmd.h>
+#else /* CONFIG_TARGET_VERDIN_AM62_A53 */
+#define BOOTENV \
+	""
+#endif /* CONFIG_TARGET_VERDIN_AM62_A53 */
+
+/* Incorporate settings into the U-Boot environment */
+#define CFG_EXTRA_ENV_SETTINGS \
+	BOOTENV \
+	MEM_LAYOUT_ENV_SETTINGS \
+	"boot_scripts=boot.scr\0" \
+	"boot_script_dhcp=boot.scr\0" \
+	"console=ttyS2\0" \
+	"fdt_board=dev\0" \
+	"setup=setenv setupargs console=tty1 console=${console},${baudrate} " \
+		"consoleblank=0 earlycon=ns16550a,mmio32,0x02800000\0" \
+	"update_uboot=askenv confirm Did you load flash.bin (y/N)?; " \
+		"if test \"$confirm\" = \"y\"; then " \
+		"setexpr blkcnt ${filesize} + 0x1ff && setexpr blkcnt " \
+		"${blkcnt} / 0x200; mmc dev 0 1; mmc write ${loadaddr} 0x0 " \
+		"${blkcnt}; fi\0"
+
+#endif /* __VERDIN_AM62_H */
-- 
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