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authorIgor Opaniuk <igor.opaniuk@toradex.com>2019-05-29 13:00:42 +0300
committerStefano Babic <sbabic@denx.de>2019-06-11 10:42:48 +0200
commit29e2def59d42db61d67076a67e263038dc43f9a7 (patch)
tree5d128fd1974108173a248a4b5944b99888289ace
parent957913220129c1db67d0b4af0c4cc37de7e564fe (diff)
apalis_imx6: use UUID for rootfs
1. Replace usage of "/dev/mmcblk*p*" with a proper UUID of rootfs partition. This fixes the issue, when MMC controllers are probed in a different order in U-boot and Linux kernel. 2. Fix legacy USB command (both sdboot and usbboot can be used now). Acked-by: Marcel Ziswiler <marcel.ziswiler@toradex.com> Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>
-rw-r--r--include/configs/apalis_imx6.h64
1 files changed, 43 insertions, 21 deletions
diff --git a/include/configs/apalis_imx6.h b/include/configs/apalis_imx6.h
index c27ba6ca6b..54094e495a 100644
--- a/include/configs/apalis_imx6.h
+++ b/include/configs/apalis_imx6.h
@@ -123,16 +123,21 @@
"imx6q-apalis-cam-eval.dtb fat 0 1"
#define EMMC_BOOTCMD \
- "emmcargs=ip=off root=/dev/mmcblk0p2 rw,noatime rootfstype=ext4 " \
- "rootwait\0" \
- "emmcboot=run setup; " \
+ "set_emmcargs emmcargs ip=off root=PARTUUID=${uuid} ro,noatime " \
+ "rootfstype=ext4 rootwait\0" \
+ "emmcboot=run setup; run emmcfinduuid; run set_emmcargs; " \
"setenv bootargs ${defargs} ${emmcargs} ${setupargs} " \
"${vidargs}; echo Booting from internal eMMC chip...; " \
- "run emmcdtbload; load mmc 0:1 ${kernel_addr_r} " \
- "${boot_file} && run fdt_fixup && " \
+ "run emmcdtbload; load mmc ${emmcdev}:${emmcbootpart} " \
+ "${kernel_addr_r} ${boot_file} && run fdt_fixup && " \
"bootz ${kernel_addr_r} ${dtbparam}\0" \
- "emmcdtbload=setenv dtbparam; load mmc 0:1 ${fdt_addr_r} " \
- "${fdt_file} && setenv dtbparam \" - ${fdt_addr_r}\" && true\0"
+ "emmcbootpart=1\0" \
+ "emmcdev=0\0" \
+ "emmcdtbload=setenv dtbparam; load mmc ${emmcdev}:${emmcbootpart} " \
+ "${fdt_addr_r} ${fdt_file} && " \
+ "setenv dtbparam \" - ${fdt_addr_r}\" && true\0" \
+ "emmcfinduuid=part uuid mmc ${mmcdev}:${emmcrootpart} uuid\0" \
+ "emmcrootpart=2\0"
#define MEM_LAYOUT_ENV_SETTINGS \
"bootm_size=0x20000000\0" \
@@ -145,7 +150,7 @@
"scriptaddr=0x17000000\0"
#define NFS_BOOTCMD \
- "nfsargs=ip=:::::eth0:on root=/dev/nfs rw\0" \
+ "nfsargs=ip=:::::eth0:on root=/dev/nfs ro\0" \
"nfsboot=run setup; " \
"setenv bootargs ${defargs} ${nfsargs} ${setupargs} " \
"${vidargs}; echo Booting via DHCP/TFTP/NFS...; " \
@@ -155,27 +160,43 @@
"&& setenv dtbparam \" - ${fdt_addr_r}\" && true\0"
#define SD_BOOTCMD \
- "sdargs=ip=off root=/dev/mmcblk1p2 rw,noatime rootfstype=ext4 " \
- "rootwait\0" \
- "sdboot=run setup; " \
+ "set_sdargs=setenv sdargs ip=off root=PARTUUID=${uuid} ro,noatime " \
+ "rootfstype=ext4 rootwait\0" \
+ "sdboot=run setup; run sdfinduuid; run set_sdargs; " \
"setenv bootargs ${defargs} ${sdargs} ${setupargs} " \
"${vidargs}; echo Booting from SD card; " \
- "run sddtbload; load mmc 1:1 ${kernel_addr_r} " \
- "${boot_file} && run fdt_fixup && " \
+ "run sddtbload; load mmc ${sddev}:${sdbootpart} " \
+ "${kernel_addr_r} ${boot_file} && run fdt_fixup && " \
"bootz ${kernel_addr_r} ${dtbparam}\0" \
- "sddtbload=setenv dtbparam; load mmc 1:1 ${fdt_addr_r} " \
- "${fdt_file} && setenv dtbparam \" - ${fdt_addr_r}\" && true\0"
+ "sdbootpart=1\0" \
+ "sddev=1\0" \
+ "sddtbload=setenv dtbparam; load mmc ${sddev}:${sdbootpart} " \
+ "${fdt_addr_r} " \
+ "${fdt_file} && setenv dtbparam \" - " \
+ "${fdt_addr_r}\" && true\0" \
+ "sdfinduuid=part uuid mmc ${sddev}:${sdrootpart} uuid\0" \
+ "sdrootpart=2\0"
+
#define USB_BOOTCMD \
- "usbargs=ip=off root=/dev/sda2 rw,noatime rootfstype=ext4 " \
- "rootwait\0" \
- "usbboot=run setup; setenv bootargs ${defargs} ${setupargs} " \
+ "set_usbargs=setenv usbargs ip=off root=PARTUUID=${uuid} ro,noatime " \
+ "rootfstype=ext4 rootwait\0" \
+ "usbboot=run setup; usb start; run usbfinduuid; run set_usbargs; " \
+ "setenv bootargs ${defargs} ${setupargs} " \
"${usbargs} ${vidargs}; echo Booting from USB stick...; " \
- "usb start && run usbdtbload; load usb 0:1 ${kernel_addr_r} " \
+ "run usbdtbload; load usb " \
+ "${usbdev}:${usbbootpart} ${kernel_addr_r} " \
"${boot_file} && run fdt_fixup && " \
"bootz ${kernel_addr_r} ${dtbparam}\0" \
- "usbdtbload=setenv dtbparam; load usb 0:1 ${fdt_addr_r} " \
- "${fdt_file} && setenv dtbparam \" - ${fdt_addr_r}\" && true\0"
+ "usbbootpart=1\0" \
+ "usbdev=0\0" \
+ "usbdtbload=setenv dtbparam; load usb ${usbdev}:${usbbootpart} "\
+ "${fdt_addr_r} " \
+ "${fdt_file} && setenv dtbparam \" - " \
+ "${fdt_addr_r}\" && true\0" \
+ "usbfinduuid=part uuid usb ${usbdev}:${usbrootpart} uuid\0" \
+ "usbrootpart=2\0"
+
#ifndef CONFIG_TDX_APALIS_IMX6_V1_0
#define FDT_FILE "imx6q-apalis-eval.dtb"
@@ -199,6 +220,7 @@
MEM_LAYOUT_ENV_SETTINGS \
NFS_BOOTCMD \
SD_BOOTCMD \
+ USB_BOOTCMD \
"setethupdate=if env exists ethaddr; then; else setenv ethaddr " \
"00:14:2d:00:00:00; fi; tftpboot ${loadaddr} " \
"flash_eth.img && source ${loadaddr}\0" \