diff options
| author | Fabio Estevam <fabio.estevam@nxp.com> | 2017-07-10 15:59:12 -0300 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2017-07-12 10:23:37 +0200 |
| commit | 00f43e51c5e77c3333784830305a2bbd4d55d2c0 (patch) | |
| tree | dd14ac823a6c744b7953f51819b19dcb4997f1ce /include/configs/mx6sabre_common.h | |
| parent | ca62e5d043640c4b4120d7d8ed292e813a17b58d (diff) | |
mx6sabre: Use PARTUUID to specify the rootfs location
mx6sabre boards 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 kernel on a
mx6qsabresd and mx6dlsabreauto.
Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Diffstat (limited to 'include/configs/mx6sabre_common.h')
| -rw-r--r-- | include/configs/mx6sabre_common.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/include/configs/mx6sabre_common.h b/include/configs/mx6sabre_common.h index 9b0fe5a3c2..d4e4628841 100644 --- a/include/configs/mx6sabre_common.h +++ b/include/configs/mx6sabre_common.h @@ -77,7 +77,7 @@ "initrd_high=0xffffffff\0" \ "mmcdev=" __stringify(CONFIG_SYS_MMC_ENV_DEV) "\0" \ "mmcpart=1\0" \ - "mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \ + "finduuid=part uuid mmc ${mmcdev}:2 uuid\0" \ "update_sd_firmware=" \ "if test ${ip_dyn} = yes; then " \ "setenv get_cmd dhcp; " \ @@ -93,7 +93,7 @@ "fi\0" \ EMMC_ENV \ "mmcargs=setenv bootargs console=${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 ...; " \ @@ -101,6 +101,7 @@ "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 " \ |