toradex: imx: enable BOOTCOUNT feature

This introduces automatic boot counter that increases after every reset.
After a power-on reset, it will be initialized with 1, and each
reboot will increment the value by 1. By default it's disabled
if bootlimit isn't set.

To enable this feature you have set bootcount limit ("bootlimit"),
alternate boot action ("altbootcmd") that will be performed if
the new value of bootcount exceeds the value of bootlimit, and
"upgrade_available" to let U-Boot automatically increase and save
the counter value after every reset:

> setenv bootlimit 5
> setenv upgrade_available 1
> setenv altbootcmd "bootm ..."

In case the bootlimit exceeds, the message will be shown and albootcmd
executed:
Warning: Bootlimit (5) exceeded. Using altbootcmd.

To reset bootcount run:
> bootcount reset

Print current value:
> bootcount print

Relates-to: ELB-2703
Signed-off-by: Igor Opaniuk <igor.opaniuk@toradex.com>

5 files changed, 15 insertions, 0 deletions

diff --git a/configs/apalis_imx6_defconfig b/configs/apalis_imx6_defconfig
index 96311da5ef..72ad9d3175 100644
--- a/configs/apalis_imx6_defconfig
+++ b/configs/apalis_imx6_defconfig
@@ -45,6 +45,7 @@ CONFIG_CMD_USB=y
 CONFIG_CMD_USB_SDP=y
 CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_CMD_BMP=y
+CONFIG_CMD_BOOTCOUNT=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_PMIC=y
 CONFIG_CMD_REGULATOR=y
@@ -55,6 +56,8 @@ CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
 CONFIG_IP_DEFRAG=y
 CONFIG_TFTP_BLOCKSIZE=4096
 CONFIG_DWC_AHSATA=y
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_BOOTCOUNT_ENV=y
 CONFIG_DM_GPIO=y
 CONFIG_DM_I2C=y
 CONFIG_DM_MMC=y
diff --git a/configs/colibri-imx6ull_defconfig b/configs/colibri-imx6ull_defconfig
index a0ba71d0f5..743f703e0c 100644
--- a/configs/colibri-imx6ull_defconfig
+++ b/configs/colibri-imx6ull_defconfig
@@ -34,6 +34,7 @@ CONFIG_CMD_USB=y
 CONFIG_CMD_USB_SDP=y
 CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_CMD_BMP=y
+CONFIG_CMD_BOOTCOUNT=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_REGULATOR=y
 CONFIG_CMD_MTDPARTS=y
@@ -47,6 +48,8 @@ CONFIG_ENV_IS_IN_NAND=y
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
 CONFIG_IP_DEFRAG=y
 CONFIG_TFTP_BLOCKSIZE=16352
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_BOOTCOUNT_ENV=y
 CONFIG_DFU_NAND=y
 CONFIG_DM_GPIO=y
 CONFIG_DM_I2C=y
diff --git a/configs/colibri_imx6_defconfig b/configs/colibri_imx6_defconfig
index bc7f9a5b51..dda5c115da 100644
--- a/configs/colibri_imx6_defconfig
+++ b/configs/colibri_imx6_defconfig
@@ -44,6 +44,7 @@ CONFIG_CMD_USB=y
 CONFIG_CMD_USB_SDP=y
 CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_CMD_BMP=y
+CONFIG_CMD_BOOTCOUNT=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_UUID=y
 CONFIG_CMD_PMIC=y
@@ -54,6 +55,8 @@ CONFIG_ENV_IS_IN_MMC=y
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
 CONFIG_IP_DEFRAG=y
 CONFIG_TFTP_BLOCKSIZE=16352
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_BOOTCOUNT_ENV=y
 CONFIG_DM_GPIO=y
 CONFIG_DM_I2C=y
 CONFIG_DM_MMC=y
diff --git a/configs/colibri_imx7_defconfig b/configs/colibri_imx7_defconfig
index 579b444b28..021f0c346a 100644
--- a/configs/colibri_imx7_defconfig
+++ b/configs/colibri_imx7_defconfig
@@ -32,6 +32,7 @@ CONFIG_CMD_USB=y
 CONFIG_CMD_USB_MASS_STORAGE=y
 # CONFIG_BOOTP_PXE is not set
 CONFIG_CMD_BMP=y
+CONFIG_CMD_BOOTCOUNT=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_MTDPARTS=y
 CONFIG_MTDIDS_DEFAULT="nand0=gpmi-nand"
@@ -44,6 +45,8 @@ CONFIG_ENV_IS_IN_NAND=y
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
 CONFIG_IP_DEFRAG=y
 CONFIG_TFTP_BLOCKSIZE=16352
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_BOOTCOUNT_ENV=y
 CONFIG_DFU_NAND=y
 CONFIG_DM_GPIO=y
 CONFIG_DM_I2C=y
diff --git a/configs/colibri_imx7_emmc_defconfig b/configs/colibri_imx7_emmc_defconfig
index 75732925ab..b62f6da300 100644
--- a/configs/colibri_imx7_emmc_defconfig
+++ b/configs/colibri_imx7_emmc_defconfig
@@ -32,6 +32,7 @@ CONFIG_CMD_MMC=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_CMD_BMP=y
+CONFIG_CMD_BOOTCOUNT=y
 CONFIG_CMD_CACHE=y
 # CONFIG_CMD_HASH is not set
 # CONFIG_ISO_PARTITION is not set
@@ -41,6 +42,8 @@ CONFIG_ENV_IS_IN_MMC=y
 CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
 CONFIG_IP_DEFRAG=y
 CONFIG_TFTP_BLOCKSIZE=16352
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_BOOTCOUNT_ENV=y
 CONFIG_FSL_CAAM=y
 CONFIG_USB_FUNCTION_FASTBOOT=y
 CONFIG_FASTBOOT_BUF_ADDR=0x82000000