rockchip: rk3399: Add bootcount support
Add bootcount support for Rockchip rk3399.
The bootcount value is preserved in PMU_SYS_REG0 register,
this would help to support redundent boot.
Once the redundant boot triggers, the altboot command
will look for extlinux-rollback.conf on particular
bootable partition which supposed to be a recovery
partition where redundant boot required.
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
diff --git a/arch/arm/mach-rockchip/Kconfig b/arch/arm/mach-rockchip/Kconfig
index b689a42..2f260a5 100644
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -244,6 +244,8 @@
imply TPL_CLK
imply TPL_TINY_MEMSET
imply TPL_ROCKCHIP_COMMON_BOARD
+ imply SYS_BOOTCOUNT_SINGLEWORD if BOOTCOUNT_LIMIT
+ imply CMD_BOOTCOUNT if BOOTCOUNT_LIMIT
help
The Rockchip RK3399 is a ARM-based SoC with a dual-core Cortex-A72
and quad-core Cortex-A53.
diff --git a/arch/arm/mach-rockchip/rk3399/Kconfig b/arch/arm/mach-rockchip/rk3399/Kconfig
index 868e85f..f994152 100644
--- a/arch/arm/mach-rockchip/rk3399/Kconfig
+++ b/arch/arm/mach-rockchip/rk3399/Kconfig
@@ -113,6 +113,16 @@
config SPL_STACK_R_ADDR
default 0x04000000
+if BOOTCOUNT_LIMIT
+
+config BOOTCOUNT_BOOTLIMIT
+ default 3
+
+config SYS_BOOTCOUNT_ADDR
+ default 0xff3100f0 # PMU_SYS_REG0
+
+endif # BOOTCOUNT_LIMIT
+
source "board/rockchip/evb_rk3399/Kconfig"
source "board/theobroma-systems/puma_rk3399/Kconfig"
source "board/vamrs/rock960_rk3399/Kconfig"
diff --git a/include/configs/rk3399_common.h b/include/configs/rk3399_common.h
index 127ca1f..89a8a44 100644
--- a/include/configs/rk3399_common.h
+++ b/include/configs/rk3399_common.h
@@ -63,7 +63,10 @@
"fdtfile=" CONFIG_DEFAULT_FDT_FILE "\0" \
"partitions=" PARTS_DEFAULT \
ROCKCHIP_DEVICE_SETTINGS \
- BOOTENV
+ BOOTENV \
+ "altbootcmd=" \
+ "setenv boot_syslinux_conf extlinux/extlinux-rollback.conf;" \
+ "run distro_bootcmd\0"
#endif