include: configs: imx6-engicam: Add recovery boot option

Combined with watchdog board reset mechanism, this can be used as recovery
boot option after bootlimit exceeds the configured value.

Signed-off-by: Shyam Saini <shyam.saini@amarulasolutions.com>

diff --git a/include/configs/imx6-engicam.h b/include/configs/imx6-engicam.h
index 7baa265..571852d 100644 (file)
--- a/include/configs/imx6-engicam.h
+++ b/include/configs/imx6-engicam.h
@@ -43,19 +43,30 @@
        "fdt_addr=" FDT_ADDR "\0" \
        "boot_fdt=try\0" \
        "mmcpart=1\0" \
+       "recovery_device=0\0" \
+       "recovery_part=2\0" \
+       "recovery_root=/dev/mmcblk0p2 rootwait rw\0" \
        "nandroot=ubi0:rootfs rootfstype=ubifs\0" \
        "mmcautodetect=yes\0" \
        "mmcargs=setenv bootargs console=${console},${baudrate} " \
                "root=${mmcroot}\0" \
+       "recovery_mmcargs= setenv bootargs console=${console},${baudrate} "\
+               "root=${recovery_root}\0" \
        "ubiargs=setenv bootargs console=${console},${baudrate} " \
                "ubi.mtd=5 root=${nandroot} ${mtdparts}\0" \
        "loadbootscript=" \
                "fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${script};\0" \
        "bootscript=echo Running bootscript from mmc ...; " \
                "source\0" \
+       "recovery_loadimage=ext2load mmc ${recovery_device}:${recovery_part} ${loadaddr} ${image}\0" \
+       "recovery_loadfdt=ext2load mmc ${recovery_device}:${recovery_part} ${fdt_addr} ${fdt_file}\0" \
        "loadimage=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${image}\0" \
        "loadfdt=fatload mmc ${mmcdev}:${mmcpart} ${fdt_addr} ${fdt_file}\0" \
        "loadfit=fatload mmc ${mmcdev}:${mmcpart} ${loadaddr} ${fit_image}\0" \
+       "altbootcmd=run recovery_boot\0"\
+       "recovery_boot=echo Recovery Boot from mmc ...; " \
+               "run recovery_loadimage ; run recovery_loadfdt; run recovery_mmcargs; "\
+               "bootm ${loadaddr} - ${fdt_addr}\0" \
        "fitboot=echo Booting FIT image from mmc ...; " \
                "run mmcargs; " \
                "bootm ${loadaddr}\0" \