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env: ti: Add environment variables to boot from UFS

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Add environment variables to boot kernel from a filesystem contained in
the 2nd UFS LUN. The user can boot from a ufs filesystem just by
entering the following commands.

=> setenv boot ufs
=> boot

Signed-off-by: Faiz Abbas <faiz_abbas@ti.com>
This commit is contained in:
Faiz Abbas 2019-10-15 18:24:41 +05:30 committed by Tom Rini
parent a539c8bd7d
commit 13b6770c05
2 changed files with 36 additions and 1 deletions
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4
include/configs/j721e_evm.h
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@ -13,6 +13,7 @@
#include <config_distro_bootcmd.h>
#include <environment/ti/mmc.h>
#include <environment/ti/k3_rproc.h>
#include <environment/ti/ufs.h>
#define CONFIG_ENV_SIZE (128 << 10)
@ -103,7 +104,8 @@
DEFAULT_MMC_TI_ARGS \
EXTRA_ENV_J721E_BOARD_SETTINGS \
EXTRA_ENV_J721E_BOARD_SETTINGS_MMC \
EXTRA_ENV_RPROC_SETTINGS
EXTRA_ENV_RPROC_SETTINGS \
DEFAULT_UFS_TI_ARGS
/* Now for the remaining common defines */
#include <configs/ti_armv7_common.h>

33
include/environment/ti/ufs.h Normal file
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@ -0,0 +1,33 @@
/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com
*
* Environment variable definitions for UFS on TI boards.
*/
#ifndef __TI_UFS_H
#define __TI_UFS_H
#define DEFAULT_UFS_TI_ARGS \
"scsirootfstype=ext4 rootwait\0" \
"ufs_finduuid=part uuid scsi ${bootpart} uuid\0" \
"args_ufs=setenv devtype scsi;setenv bootpart 1:1;" \
"run ufs_finduuid;setenv bootargs console = ${console} " \
"${optargs}" \
"root=PARTUUID=${uuid} rw " \
"rootfstype=${scsirootfstype};" \
"setenv devtype scsi;" \
"setenv bootpart 1:1\0" \
"init_ufs=ufs init; scsi scan; run args_ufs\0" \
"get_kern_ufs=load ${devtype} ${bootpart} ${loadaddr} ${bootdir}/${name_kern}\0" \
"get_fdt_ufs=load ${devtype} ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
"get_overlay_ufs=" \
"fdt address ${fdtaddr};" \
"fdt resize 0x100000;" \
"for overlay in $name_overlays;" \
"do;" \
"load scsi ${bootpart} ${overlayaddr} ${bootdir}/${overlay} && " \
"fdt apply ${overlayaddr};" \
"done;\0"
#endif