From a0046393dae74364b7a7b7ed5e2af8431a3d680c Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 2 Oct 2017 10:11:37 -0300 Subject: [PATCH] mx6slevk: Use PARTUUID to specify the rootfs location mx6slevk 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 SD card changes depending on the kernel version. In order to avoid such issue, use the UUID method to specify the rootfs location. Signed-off-by: Fabio Estevam --- configs/mx6slevk_defconfig | 1 + configs/mx6slevk_spl_defconfig | 1 + include/configs/mx6slevk.h | 5 +++-- 3 files changed, 5 insertions(+), 2 deletions(-) diff --git a/configs/mx6slevk_defconfig b/configs/mx6slevk_defconfig index 082f3170f8..16e2ccafde 100644 --- a/configs/mx6slevk_defconfig +++ b/configs/mx6slevk_defconfig @@ -12,6 +12,7 @@ CONFIG_CMD_BOOTZ=y CONFIG_CMD_GPIO=y CONFIG_CMD_I2C=y CONFIG_CMD_MMC=y +CONFIG_CMD_PART=y CONFIG_CMD_SF=y CONFIG_CMD_USB=y # CONFIG_CMD_SETEXPR is not set diff --git a/configs/mx6slevk_spl_defconfig b/configs/mx6slevk_spl_defconfig index 32f93df970..689fe794ed 100644 --- a/configs/mx6slevk_spl_defconfig +++ b/configs/mx6slevk_spl_defconfig @@ -20,6 +20,7 @@ CONFIG_CMD_BOOTZ=y CONFIG_CMD_GPIO=y CONFIG_CMD_I2C=y CONFIG_CMD_MMC=y +CONFIG_CMD_PART=y CONFIG_CMD_SF=y CONFIG_CMD_USB=y CONFIG_CMD_DHCP=y diff --git a/include/configs/mx6slevk.h b/include/configs/mx6slevk.h index 25c83e81c5..9ddb1433ac 100644 --- a/include/configs/mx6slevk.h +++ b/include/configs/mx6slevk.h @@ -53,9 +53,9 @@ "ip_dyn=yes\0" \ "mmcdev=1\0" \ "mmcpart=1\0" \ - "mmcroot=/dev/mmcblk0p2 rootwait rw\0" \ + "finduuid=part uuid mmc 1:2 uuid\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 ...; " \ @@ -63,6 +63,7 @@ "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 " \ -- 2.39.2