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fac1bd6341
Add logic for booting systems with the RAUC update mechanism. This can be reused by other phytec boards. Signed-off-by: Leonard Anderweit <l.anderweit@phytec.de> Tested-by: Teresa Remmet <t.remmet@phytec.de>
52 lines
1.5 KiB
Bash
52 lines
1.5 KiB
Bash
/* SPDX-License-Identifier: GPL-2.0+ */
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/* Logic to select a boot partition based on environment variables and switch
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* to the other if the boot fails. */
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doraucboot=0
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raucbootpart0=1
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raucrootpart0=5
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raucbootpart1=2
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raucrootpart1=6
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raucinit=
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echo Booting RAUC A/B system;
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test -n "${BOOT_ORDER}" || env set BOOT_ORDER "system0 system1";
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test -n "${BOOT_system0_LEFT}" || env set BOOT_system0_LEFT 3;
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test -n "${BOOT_system1_LEFT}" || env set BOOT_system1_LEFT 3;
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env set raucstatus;
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for BOOT_SLOT in "${BOOT_ORDER}"; do
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if test "x${raucstatus}" != "x"; then
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echo Skipping remaing slots!;
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elif test "x${BOOT_SLOT}" = "xsystem0"; then
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if test ${BOOT_system0_LEFT} -gt 0; then
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echo Found valid slot A, ${BOOT_system0_LEFT} attempts remaining;
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setexpr BOOT_system0_LEFT ${BOOT_system0_LEFT} - 1;
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env set mmcpart ${raucbootpart0};
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env set mmcroot ${raucrootpart0};
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env set raucargs rauc.slot=system0;
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env set raucstatus success;
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fi;
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elif test "x${BOOT_SLOT}" = "xsystem1"; then
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if test ${BOOT_system1_LEFT} -gt 0; then
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echo Found valid slot B, ${BOOT_system1_LEFT} attempts remaining;
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setexpr BOOT_system1_LEFT ${BOOT_system1_LEFT} - 1;
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env set mmcpart ${raucbootpart1};
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env set mmcroot ${raucrootpart1};
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env set raucargs rauc.slot=system1;
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env set raucstatus success;
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fi;
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fi;
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done;
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if test -n "${raucstatus}"; then
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env delete raucstatus;
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env save;
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else
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echo WARN: No valid slot found;
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env set BOOT_system0_LEFT 3;
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env set BOOT_system1_LEFT 3;
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env delete raucstatus;
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env save;
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reset;
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fi;
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