u-boot/include/configs/am62x_evm.h
Martyn Welch 83f5195e32 configs: Enable distroboot on am625
TI boards use a custom (though faily common to TI boards) mechanism for
booting Linux. We would like to use the "distroboot" approach.

Enable distroboot as a further option to use for booting on am625 should
the existing options fail.

Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
2023-01-10 15:39:07 -05:00

91 lines
2.6 KiB
C

/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Configuration header file for K3 AM625 SoC family
*
* Copyright (C) 2020-2022 Texas Instruments Incorporated - https://www.ti.com/
* Suman Anna <s-anna@ti.com>
*/
#ifndef __CONFIG_AM625_EVM_H
#define __CONFIG_AM625_EVM_H
#include <config_distro_bootcmd.h>
#include <environment/ti/mmc.h>
/* DDR Configuration */
#define CFG_SYS_SDRAM_BASE1 0x880000000
#ifdef CONFIG_CMD_MMC
#define DISTRO_BOOT_DEV_MMC(func) func(MMC, mmc, 0) func(MMC, mmc, 1)
#else
#define DISTRO_BOOT_DEV_MMC(func)
#endif
#ifdef CONFIG_CMD_PXE
#define DISTRO_BOOT_DEV_PXE(func) func(PXE, pxe, na)
#else
#define DISTRO_BOOT_DEV_PXE(func)
#endif
#ifdef CONFIG_CMD_DHCP
#define DISTRO_BOOT_DEV_DHCP(func) func(DHCP, dhcp, na)
#else
#define DISTRO_BOOT_DEV_DHCP(func)
#endif
#define BOOT_TARGET_DEVICES(func) \
DISTRO_BOOT_DEV_MMC(func) \
DISTRO_BOOT_DEV_PXE(func) \
DISTRO_BOOT_DEV_DHCP(func)
#define PARTS_DEFAULT \
/* Linux partitions */ \
"name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}\0"
/* U-Boot general configuration */
#define EXTRA_ENV_AM625_BOARD_SETTINGS \
"default_device_tree=" CONFIG_DEFAULT_DEVICE_TREE ".dtb\0" \
"findfdt=" \
"setenv name_fdt ${default_device_tree};" \
"setenv fdtfile ${name_fdt}\0" \
"name_kern=Image\0" \
"console=ttyS2,115200n8\0" \
"args_all=setenv optargs ${optargs} earlycon=ns16550a,mmio32,0x02800000 " \
"${mtdparts}\0" \
"run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}\0"
/* U-Boot MMC-specific configuration */
#define EXTRA_ENV_AM625_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_overlay_mmc=" \
"fdt address ${fdtaddr};" \
"fdt resize 0x100000;" \
"for overlay in $name_overlays;" \
"do;" \
"load mmc ${bootpart} ${dtboaddr} ${bootdir}/${overlay} && " \
"fdt apply ${dtboaddr};" \
"done;\0" \
"get_kern_mmc=load mmc ${bootpart} ${loadaddr} " \
"${bootdir}/${name_kern}\0" \
"get_fit_mmc=load mmc ${bootpart} ${addr_fit} " \
"${bootdir}/${name_fit}\0" \
"partitions=" PARTS_DEFAULT
/* Incorporate settings into the U-Boot environment */
#define CFG_EXTRA_ENV_SETTINGS \
DEFAULT_LINUX_BOOT_ENV \
DEFAULT_MMC_TI_ARGS \
EXTRA_ENV_AM625_BOARD_SETTINGS \
EXTRA_ENV_AM625_BOARD_SETTINGS_MMC \
BOOTENV
/* Now for the remaining common defines */
#include <configs/ti_armv7_common.h>
#endif /* __CONFIG_AM625_EVM_H */