98 lines
2.9 KiB
Plaintext
98 lines
2.9 KiB
Plaintext
#
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# U-Boot bootscript for NAND images created by Yocto.
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#
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# As the first step in the boot script, check if we are using DualBoot. This
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# requires the script to change some variables and save them, while the rest
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# of the script changes variables only temporarily without saving them.
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# Build boot attempt message string
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if test "${bootlimit}" -gt 0 && test "${bootcount}" -gt 0; then
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bootattempt="(boot attempt ${bootcount}/${bootlimit})"
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fi
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# Dual boot verification
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if test "${dualboot}" = "yes"; then
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if test "${active_system}" = "linux_a"; then
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echo "Booting from system A ${bootattempt}"
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setenv tmp_mtdrootfspart ${rootfsvol_a}
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setenv tmp_rootfsvol ${rootfsvol_a}
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else
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echo "Booting from system B ${bootattempt}"
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setenv tmp_mtdrootfspart ${rootfsvol_b}
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setenv tmp_rootfsvol ${rootfsvol_b}
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fi
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if test "${mtdbootpart}" != "${active_system}"; then
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setenv mtdbootpart ${active_system}
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env_save_needed="1"
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fi
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if test "${mtdrootfspart}" != "${tmp_mtdrootfspart}"; then
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setenv mtdrootfspart ${tmp_mtdrootfspart}
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env_save_needed="1"
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fi
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if test "${rootfsvol}" != "${tmp_rootfsvol}"; then
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setenv rootfsvol ${tmp_rootfsvol}
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env_save_needed="1"
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fi
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if test "${env_save_needed}" = "1"; then
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env delete tmp_rootfsvol tmp_mtdrootfspart
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env save
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fi
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else
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echo "Booting system ${bootattempt}"
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if test "${mtdbootpart}" = "recovery"; then
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setenv boot_initrd true
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setenv initrd_file uramdisk-recovery.img
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else
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true
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fi
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setenv rootfsvol rootfs
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fi
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# Back up environment variables
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setenv ORIG_extra_bootargs ${extra_bootargs}
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#
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# Set device tree filename depending on the board ID (if defined)
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#
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if test -n "${board_id}"; then
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setenv fdt_file imx6ul-ccimx6ulstarter-id${board_id}.dtb
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else
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#
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# Set device tree filename depending on the hardware variant
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#
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if test "${module_variant}" = "0x02"; then
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setenv fdt_file imx6ul-ccimx6ulstarter-wb.dtb
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elif test "${module_variant}" = "0x03"; then
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setenv fdt_file imx6ul-ccimx6ulstarter.dtb
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elif test "${module_variant}" = "0x04"; then
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setenv fdt_file imx6ul-ccimx6ulstarter-wb.dtb
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elif test "${module_variant}" = "0x05"; then
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setenv fdt_file imx6ul-ccimx6ulstarter.dtb
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elif test "${module_variant}" = "0x06"; then
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setenv fdt_file imx6ul-ccimx6ulstarter-wb.dtb
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elif test "${module_variant}" = "0x07"; then
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setenv fdt_file imx6ul-ccimx6ulstarter-wb.dtb
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elif test "${module_variant}" = "0x08"; then
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setenv fdt_file imx6ul-ccimx6ulstarter-wb.dtb
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elif test "${module_variant}" = "0x09"; then
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setenv fdt_file imx6ul-ccimx6ulstarter-wb.dtb
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elif test "${module_variant}" = "0x0a"; then
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setenv fdt_file imx6ul-ccimx6ulstarter.dtb
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else
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setenv fdt_file imx6ul-ccimx6ulstarter-wb.dtb
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fi
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fi
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setenv extra_bootargs fbcon=logo-pos:center fbcon=logo-count:1 ${extra_bootargs}
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dboot linux nand ${mtdbootpart}
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# We only get here in case of an error on the dboot command.
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# Undo changes to environment variables
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setenv extra_bootargs ${ORIG_extra_bootargs}
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setenv ORIG_extra_bootargs
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