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 (file)
--- a/arch/arm/mach-rockchip/Kconfig
+++ b/arch/arm/mach-rockchip/Kconfig
@@ -244,6 +244,8 @@ config ROCKCHIP_RK3399
        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 (file)
--- a/arch/arm/mach-rockchip/rk3399/Kconfig
+++ b/arch/arm/mach-rockchip/rk3399/Kconfig
@@ -113,6 +113,16 @@ config TPL_TEXT_BASE
 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 (file)
--- 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