For the STM32MP15 DHSOM, change the default environment so an AB schema
on a device can be detected.
For this the define "SCAN_DEV_FOR_BOOT_PARTS" is overwritten and
appended.
The detection works by looking for the partitions with specific lables.
The name of those partitions are in the variables and its defaults:
* dh_ab_partname_primary=rootfs-a
* dh_ab_partname_secondary=rootfs-b
To prevent being hanging at bootcmd, enable "CONFIG_BOOT_RETRY" and
"CONFIG_RESET_TO_RETRY", but the timer will only be activated, if the AB
partitions are detected.
Signed-off-by: Pascal Zimmermann <pzimmerm...@dh-electronics.com>
---
Cc: Marek Vasut <ma...@denx.de>
Cc: Patrick Delaunay <patrick.delau...@foss.st.com>
Cc: Patrice Chotard <patrice.chot...@foss.st.com>
Cc: Tom Rini <tr...@konsulko.com>
Cc: Simon Glass <s...@chromium.org>
Cc: u-b...@dh-electronics.com
Cc: uboot-st...@st-md-mailman.stormreply.com
Cc: u-boot@lists.denx.de
---
configs/stm32mp15_dhsom.config | 3 +++
include/configs/stm32mp15_dh_dhsom.h | 33 ++++++++++++++++++++++++++++
2 files changed, 36 insertions(+)
diff --git a/configs/stm32mp15_dhsom.config b/configs/stm32mp15_dhsom.config
index 7e5b5aa67ef..c84116482f6 100644
--- a/configs/stm32mp15_dhsom.config
+++ b/configs/stm32mp15_dhsom.config
@@ -10,6 +10,9 @@ CONFIG_BOARD_EARLY_INIT_F=y
CONFIG_BOARD_SIZE_LIMIT=1441792
CONFIG_BOOTCOUNT_BOOTLIMIT=3
CONFIG_BOOTDELAY=1
+CONFIG_BOOTRETRY=y
+CONFIG_RESET_TO_RETRY=y
+CONFIG_BOOT_RETRY_TIME=-1
CONFIG_CMD_ADC=y
CONFIG_CMD_REMOTEPROC=y
CONFIG_CMD_STBOARD=y
diff --git a/include/configs/stm32mp15_dh_dhsom.h
b/include/configs/stm32mp15_dh_dhsom.h
index c004a8cec82..267e3446779 100644
--- a/include/configs/stm32mp15_dh_dhsom.h
+++ b/include/configs/stm32mp15_dh_dhsom.h
@@ -17,7 +17,40 @@
" 0x800000\0"
#endif
+/* Add the search for AB partitons */
+#define SCAN_DEV_FOR_BOOT_PARTS
\
+ "run dh_check_if_ab; " \
+ "if test -z \"${devplist}\"; " \
+ "then " \
+ "part list ${devtype} ${devnum} -bootable devplist; " \
+ "fi; "
+
#define STM32MP_BOARD_EXTRA_ENV
\
+ "altbootcmd= " \
+ "setenv dh_ab_get_partnames " \
+ "'setenv dh_ab_partnames ${dh_ab_partname_secondary} " \
+ "${dh_ab_partname_primary}' && " \
+ "run bootcmd\0" \
+ "dh_check_if_ab= " /* Sets devplist if AB partitions*/ \
+ "echo test for AB on ${devtype} ${devnum} && " \
+ "run dh_ab_get_partnames && " \
+ "setenv devplist && " \
+ "for partname in ${dh_ab_partnames}; do " \
+ "setenv partnum && " \
+ "if part number ${devtype} ${devnum} ${partname}
partnum; "\
+ "then " \
+ "setenv devplist \"${devplist} ${partnum}\" &&
"\
+ "setenv bootretry 60 ;" \
+ "fi; " \
+ "done ; " \
+ "if test -n \"${devplist}\"; " \
+ "then echo AB partitions found! ; " \
+ "fi\0" \
+ "dh_ab_get_partnames= " /* Sets dh_ab_partnames */ \
+ "setenv dh_ab_partnames ${dh_ab_partname_primary} " \
+ "${dh_ab_partname_secondary}\0" \
+ "dh_ab_partname_primary=rootfs-a\0" /* Names of AB partitions */\
+ "dh_ab_partname_secondary=rootfs-b\0" \
"dh_preboot=" \
"run dh_testbench_backward_compat\0" \
"dh_update_sd_to_emmc=" /* Install U-Boot from SD to eMMC */ \
--
2.30.2
