commit c74675bd904b6ce9d5820a80f27793c0583fd54c
author Nandor Han <nandor.han@vaisala.com> Thu Jun 10 16:56:45 2021 +0300
committer Tom Rini <trini@konsulko.com> Fri Jul 23 10:16:39 2021 -0400
tree b9b6e93ebe0d54334e3bf96b70e6a556a01a0f7c
parent f9db2f16cb6fc7b6d05b0e70de65881bc97ba5c2

reboot-mode: read the boot mode from RTC memory

RTC devices could provide battery-backed memory that can be used for
storing the reboot mode magic value.

Add a new reboot-mode back-end that uses RTC to store the reboot-mode
magic value. The driver also supports both endianness modes.

Signed-off-by: Nandor Han <nandor.han@vaisala.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

drivers/reboot-mode/Makefile

diff --git a/drivers/reboot-mode/Makefile b/drivers/reboot-mode/Makefile
index 04917be..2c13780 100644
--- a/drivers/reboot-mode/Makefile
+++ b/drivers/reboot-mode/Makefile
@@ -6,3 +6,4 @@
 
 obj-$(CONFIG_DM_REBOOT_MODE) += reboot-mode-uclass.o
 obj-$(CONFIG_DM_REBOOT_MODE_GPIO) += reboot-mode-gpio.o
+obj-$(CONFIG_DM_REBOOT_MODE_RTC) += reboot-mode-rtc.o