mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-22 11:13:07 +00:00
1e5b116ed2
Create a basic U-Boot environment that allows the automatic loading of a Linux Kernel located at /boot/Image and an associated device tree blob located at /boot/k3-am654-base-board.dtb from the secondary partition of an ext4-formatted SD card on the AM654x EVM. Furthermore the boot.scr and uEnv.txt detection and loading schemes are supported in a manner already known from other TI platforms. Note that this is intended to be a starting point to enable initial board use and will most certainly get extended and refactored as different boot media become available. Reviewed-by: Tom Rini <trini@konsulko.com> Signed-off-by: Andreas Dannenberg <dannenberg@ti.com> Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
69 lines
2.1 KiB
C
69 lines
2.1 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
|
|
/*
|
|
* Configuration header file for K3 AM654 EVM
|
|
*
|
|
* Copyright (C) 2017-2018 Texas Instruments Incorporated - http://www.ti.com/
|
|
* Lokesh Vutla <lokeshvutla@ti.com>
|
|
*/
|
|
|
|
#ifndef __CONFIG_AM654_EVM_H
|
|
#define __CONFIG_AM654_EVM_H
|
|
|
|
#include <linux/sizes.h>
|
|
#include <config_distro_bootcmd.h>
|
|
#include <environment/ti/mmc.h>
|
|
|
|
#define CONFIG_ENV_SIZE (128 << 10)
|
|
|
|
/* DDR Configuration */
|
|
#define CONFIG_SYS_SDRAM_BASE1 0x880000000
|
|
|
|
/* SPL Loader Configuration */
|
|
#ifdef CONFIG_TARGET_AM654_A53_EVM
|
|
#define CONFIG_SPL_TEXT_BASE 0x80080000
|
|
#endif
|
|
|
|
#define CONFIG_SKIP_LOWLEVEL_INIT
|
|
|
|
#define CONFIG_SPL_MAX_SIZE CONFIG_SYS_K3_MAX_DOWNLODABLE_IMAGE_SIZE
|
|
#define CONFIG_SYS_INIT_SP_ADDR (CONFIG_SPL_TEXT_BASE + \
|
|
CONFIG_SYS_K3_NON_SECURE_MSRAM_SIZE - 4)
|
|
|
|
/* U-Boot general configuration */
|
|
#define EXTRA_ENV_AM65X_BOARD_SETTINGS \
|
|
"findfdt=" \
|
|
"if test $board_name = am65x; then " \
|
|
"setenv name_fdt k3-am654-base-board.dtb; " \
|
|
"else if test $name_fdt = undefined; then " \
|
|
"echo WARNING: Could not determine device tree to use;"\
|
|
"fi; fi; " \
|
|
"setenv fdtfile ${name_fdt}\0" \
|
|
"loadaddr=0x80080000\0" \
|
|
"fdtaddr=0x82000000\0" \
|
|
"name_kern=Image\0" \
|
|
"console=ttyS2,115200n8\0" \
|
|
"args_all=setenv optargs earlycon=ns16550a,mmio32,0x02800000\0" \
|
|
"run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}\0"
|
|
|
|
/* U-Boot MMC-specific configuration */
|
|
#define EXTRA_ENV_AM65X_BOARD_SETTINGS_MMC \
|
|
"boot=mmc\0" \
|
|
"mmcdev=1\0" \
|
|
"bootpart=1:2\0" \
|
|
"bootdir=/boot\0" \
|
|
"rd_spec=-\0" \
|
|
"init_mmc=run args_all args_mmc\0" \
|
|
"get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}\0" \
|
|
"get_kern_mmc=load mmc ${bootpart} ${loadaddr} " \
|
|
"${bootdir}/${name_kern}\0"
|
|
|
|
/* Incorporate settings into the U-Boot environment */
|
|
#define CONFIG_EXTRA_ENV_SETTINGS \
|
|
DEFAULT_MMC_TI_ARGS \
|
|
EXTRA_ENV_AM65X_BOARD_SETTINGS \
|
|
EXTRA_ENV_AM65X_BOARD_SETTINGS_MMC
|
|
|
|
/* Now for the remaining common defines */
|
|
#include <configs/ti_armv7_common.h>
|
|
|
|
#endif /* __CONFIG_AM654_EVM_H */
|