Add logic for booting systems with the RAUC update mechanism. This can
be reused by other phytec boards.
Signed-off-by: Leonard Anderweit <l.anderw...@phytec.de>
---
include/env/phytec/rauc.env | 52 +++++++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
create mode 100644 include/env/phytec/rauc.env
diff --git a/include/env/phytec/rauc.env b/include/env/phytec/rauc.env
new file mode 100644
index 000000000000..89e17ff70ec6
--- /dev/null
+++ b/include/env/phytec/rauc.env
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+
+/* Logic to select a boot partition based on environment variables and switch
+ * to the other if the boot fails. */
+
+doraucboot=0
+
+raucbootpart0=1
+raucrootpart0=5
+raucbootpart1=2
+raucrootpart1=6
+
+raucinit=
+ echo Booting RAUC A/B system;
+ test -n "${BOOT_ORDER}" || env set BOOT_ORDER "system0 system1";
+ test -n "${BOOT_system0_LEFT}" || env set BOOT_system0_LEFT 3;
+ test -n "${BOOT_system1_LEFT}" || env set BOOT_system1_LEFT 3;
+ env set raucstatus;
+ for BOOT_SLOT in "${BOOT_ORDER}"; do
+ if test "x${raucstatus}" != "x"; then
+ echo Skipping remaing slots!;
+ elif test "x${BOOT_SLOT}" = "xsystem0"; then
+ if test ${BOOT_system0_LEFT} -gt 0; then
+ echo Found valid slot A, ${BOOT_system0_LEFT}
attempts remaining;
+ setexpr BOOT_system0_LEFT ${BOOT_system0_LEFT}
- 1;
+ env set mmcpart ${raucbootpart0};
+ env set mmcroot ${raucrootpart0};
+ env set raucargs rauc.slot=system0;
+ env set raucstatus success;
+ fi;
+ elif test "x${BOOT_SLOT}" = "xsystem1"; then
+ if test ${BOOT_system1_LEFT} -gt 0; then
+ echo Found valid slot B, ${BOOT_system1_LEFT}
attempts remaining;
+ setexpr BOOT_system1_LEFT ${BOOT_system1_LEFT}
- 1;
+ env set mmcpart ${raucbootpart1};
+ env set mmcroot ${raucrootpart1};
+ env set raucargs rauc.slot=system1;
+ env set raucstatus success;
+ fi;
+ fi;
+ done;
+ if test -n "${raucstatus}"; then
+ env delete raucstatus;
+ env save;
+ else
+ echo WARN: No valid slot found;
+ env set BOOT_system0_LEFT 3;
+ env set BOOT_system1_LEFT 3;
+ env delete raucstatus;
+ env save;
+ reset;
+ fi;
--
2.25.1
