Mirrors/u-boot
2
0
Fork 0
mirror of https://github.com/AsahiLinux/u-boot synced 2024-11-10 07:04:28 +00:00
Code Issues Projects Releases Packages Wiki Activity

warp: Use PARTUUID to specify the rootfs location

Browse source 
warp can run different kernel versions, such as NXP 4.1 or
mainline.

Currently the rootfs location is passed via mmcblk number and the
problem with this approach is that the mmcblk number for the eMMC
changes depending on the kernel version.

In order to avoid such issue, use UUID method to specify the rootfs
location.

Succesfully tested booting a NXP 4.1 and also a mainline 4.12 kernel.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Acked-by: Otavio Salvador <otavio@ossystems.com.br>
This commit is contained in:
Fabio Estevam 2017-07-11 14:24:29 -03:00 committed by Stefano Babic
parent 0f29a61c53
commit 283c2a6553
2 changed files with 4 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
configs/warp_defconfig
View file

@ -10,6 +10,7 @@ CONFIG_CMD_BOOTZ=y
# CONFIG_CMD_IMLS is not set
# CONFIG_CMD_FLASH is not set
CONFIG_CMD_MMC=y
CONFIG_CMD_PART=y
CONFIG_CMD_I2C=y
CONFIG_CMD_USB=y
CONFIG_CMD_DFU=y

5
include/configs/warp.h
View file

@ -95,10 +95,10 @@
"ip_dyn=yes\0" \
"mmcdev=0\0" \
"mmcpart=1\0" \
"mmcroot=/dev/mmcblk0p2 rootwait rw\0" \
"finduuid=part uuid mmc 0:2 uuid\0" \
"dfu_alt_info=boot raw 0x2 0x400 mmcpart 1\0" \
"mmcargs=setenv bootargs console=${console},${baudrate} " \
"root=${mmcroot}\0" \
"root=PARTUUID=${uuid} rootwait rw\0" \
"loadbootscript=" \
"fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
"bootscript=echo Running bootscript from mmc ...; " \
@ -106,6 +106,7 @@
"loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
"loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
"mmcboot=echo Booting from mmc ...; " \
"run finduuid; " \
"run mmcargs; " \
"if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
"if run loadfdt; then " \