From: Fabio Berton fabio.berton@ossystems.com.br
Currently the rootfs location is passed via mmcblk number and using the UUID method to specify the rootfs location is a better approach working even if mmcblk number for the eMMM changes depending on the kernel versions.
Signed-off-by: Fabio Berton fabio.berton@ossystems.com.br Signed-off-by: Otavio Salvador otavio@ossystems.com.br ---
configs/pico-imx6ul_defconfig | 1 + include/configs/pico-imx6ul.h | 6 +++--- 2 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/configs/pico-imx6ul_defconfig b/configs/pico-imx6ul_defconfig index 09b36ccb09..e00f9f34a3 100644 --- a/configs/pico-imx6ul_defconfig +++ b/configs/pico-imx6ul_defconfig @@ -13,6 +13,7 @@ CONFIG_CMD_DFU=y # CONFIG_CMD_FLASH is not set CONFIG_CMD_GPIO=y CONFIG_CMD_MMC=y +CONFIG_CMD_PART=y CONFIG_CMD_USB=y CONFIG_CMD_USB_MASS_STORAGE=y CONFIG_CMD_DHCP=y diff --git a/include/configs/pico-imx6ul.h b/include/configs/pico-imx6ul.h index d4b29e3950..c775c32690 100644 --- a/include/configs/pico-imx6ul.h +++ b/include/configs/pico-imx6ul.h @@ -61,14 +61,15 @@ "fdt_addr=0x83000000\0" \ "mmcdev="__stringify(CONFIG_SYS_MMC_ENV_DEV)"\0" \ "mmcpart=" __stringify(CONFIG_SYS_MMC_IMG_LOAD_PART) "\0" \ - "mmcroot=" CONFIG_MMCROOT " rootwait rw\0" \ "mmcautodetect=yes\0" \ CONFIG_DFU_ENV_SETTINGS \ + "finduuid=part uuid mmc 0:2 uuid\0" \ "mmcargs=setenv bootargs console=${console},${baudrate} " \ - "root=${mmcroot}\0" \ + "root=PARTUUID=${uuid} rootwait rw\0" \ "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 run loadfdt; then " \ "bootz ${loadaddr} - ${fdt_addr}; " \ @@ -147,6 +148,5 @@
#define CONFIG_SYS_MMC_ENV_DEV 0 #define CONFIG_SYS_MMC_ENV_PART 0 -#define CONFIG_MMCROOT "/dev/mmcblk0p2"
#endif /* __PICO_IMX6UL_CONFIG_H */