2e2f6e893b
* Fix Tinker Board S (eMMC) boot (#650) Use Tinker Board S U-Boot configuration which is capable to boot from eMMC as well as from SD card. Note that this makes U-Boot always claiming to run on Tinker Board S: .. Model: Rockchip RK3288 Asus Tinker Board S .. It seems that there is no generic Tinker Board configuration. However, Tinker Board S configuration really seems to work well with Tinker Board as well, so just use it. Also today the U-Boot Makefile seems to generate a working idbloader.img already. Drop our special handling. * Use Tinker Board S device tree if booting from eMMC for Linux Instead of patching the Tinker Board device tree, select the device tree based on what device we are booting from. Note: This boots the non-S device tree when booting a Tinker Board S from SD card! But there is no reliable detection otherwise, so let's just live with that fact. * Document how to use our U-Boot to flash eMMC
74 lines
2.3 KiB
Plaintext
74 lines
2.3 KiB
Plaintext
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part start mmc ${devnum} 6 mmc_env
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mmc dev ${devnum}
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setenv loadbootstate " \
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echo 'loading env...'; \
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mmc read ${ramdisk_addr_r} ${mmc_env} 0x40; \
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env import -c ${ramdisk_addr_r} 0x8000;"
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setenv storebootstate " \
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echo 'storing env...'; \
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env export -c -s 0x8000 ${ramdisk_addr_r} BOOT_ORDER BOOT_A_LEFT BOOT_B_LEFT MACHINE_ID; \
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mmc write ${ramdisk_addr_r} ${mmc_env} 0x40;"
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run loadbootstate
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test -n "${BOOT_ORDER}" || setenv BOOT_ORDER "A B"
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test -n "${BOOT_A_LEFT}" || setenv BOOT_A_LEFT 3
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test -n "${BOOT_B_LEFT}" || setenv BOOT_B_LEFT 3
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# HassOS bootargs
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setenv bootargs_hassos "zram.enabled=1 zram.num_devices=3 apparmor=1 security=apparmor systemd.machine_id=${MACHINE_ID} cgroup_enable=memory"
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# HassOS system A/B
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setenv bootargs_a "root=PARTUUID=8d3d53e3-6d49-4c38-8349-aff6859e82fd rootfstype=squashfs ro rootwait"
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setenv bootargs_b "root=PARTUUID=a3ec664e-32ce-4665-95ea-7ae90ce9aa20 rootfstype=squashfs ro rootwait"
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# Load extraargs
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fileenv mmc ${devnum}:1 ${ramdisk_addr_r} cmdline.txt cmdline
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# Load device tree
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if test "$devnum" = "0"; then
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fatload mmc ${devnum}:1 ${fdt_addr_r} rk3288-tinker-s.dtb
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else
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fatload mmc ${devnum}:1 ${fdt_addr_r} rk3288-tinker.dtb
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fi
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setenv bootargs
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for BOOT_SLOT in "${BOOT_ORDER}"; do
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if test "x${bootargs}" != "x"; then
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# skip remaining slots
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elif test "x${BOOT_SLOT}" = "xA"; then
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if test ${BOOT_A_LEFT} -gt 0; then
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setexpr BOOT_A_LEFT ${BOOT_A_LEFT} - 1
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echo "Found valid slot A, ${BOOT_A_LEFT} attempts remaining"
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setenv load_kernel "ext4load mmc ${devnum}:2 ${kernel_addr_r} zImage"
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setenv bootargs "${bootargs_hassos} ${bootargs_a} rauc.slot=A ${cmdline}"
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fi
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elif test "x${BOOT_SLOT}" = "xB"; then
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if test ${BOOT_B_LEFT} -gt 0; then
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setexpr BOOT_B_LEFT ${BOOT_B_LEFT} - 1
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echo "Found valid slot B, ${BOOT_B_LEFT} attempts remaining"
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setenv load_kernel "ext4load mmc ${devnum}:4 ${kernel_addr_r} zImage"
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setenv bootargs "${bootargs_hassos} ${bootargs_b} rauc.slot=B ${cmdline}"
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fi
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fi
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done
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if test -n "${bootargs}"; then
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run storebootstate
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else
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echo "No valid slot found, resetting tries to 3"
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setenv BOOT_A_LEFT 3
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setenv BOOT_B_LEFT 3
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run storebootstate
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reset
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fi
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echo "Loading kernel"
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run load_kernel
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echo " Starting kernel"
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bootz ${kernel_addr_r} - ${fdt_addr_r}
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echo "Fails on boot"
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reset
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