ARM: stm32: Add boot counter to DHSOM

Add boot counter to STM32MP15xx DHSOM. This aligns the software with
other upstream DHSOM products which already do enable boot counter.

The boot counter on STM32MP15xx is placed in the TAMP block TAMP_BKPxR
register 19, right past register 17 and 18 used for CM4 resource table
and state by the Linux kernel. The TAMP_BKPxR register block is used
because its contents survives warm reset, but not cold reset.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Patrice Chotard <patrice.chotard@foss.st.com>
Cc: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>

diff --git a/configs/stm32mp15_dhcom_basic_defconfig b/configs/stm32mp15_dhcom_basic_defconfig
index 3ba396b96712ed48e71a50868e67a2c48fa5e8a5..c8093c4e1523cfbd28fffcc6aaeda12ed63baad8 100644 (file)
--- a/configs/stm32mp15_dhcom_basic_defconfig
+++ b/configs/stm32mp15_dhcom_basic_defconfig
@@ -8,6 +8,8 @@ CONFIG_DEFAULT_DEVICE_TREE="stm32mp15xx-dhcom-pdk2"
 CONFIG_SPL_TEXT_BASE=0x2FFC2500
 CONFIG_SYS_PROMPT="STM32MP> "
 CONFIG_SPL_MMC=y
+CONFIG_BOOTCOUNT_BOOTLIMIT=3
+CONFIG_SYS_BOOTCOUNT_ADDR=0x5C00A14C
 CONFIG_SPL=y
 CONFIG_TARGET_DH_STM32MP1_PDK2=y
 CONFIG_SPL_SPI_FLASH_SUPPORT=y
@@ -74,6 +76,7 @@ CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_SYS_DISABLE_AUTOLOAD=y
+CONFIG_CMD_BOOTCOUNT=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_TIME=y
 CONFIG_CMD_TIMER=y
@@ -99,6 +102,8 @@ CONFIG_IP_DEFRAG=y
 CONFIG_TFTP_TSIZE=y
 CONFIG_STM32_ADC=y
 CONFIG_SPL_BLOCK_CACHE=y
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_SYS_BOOTCOUNT_MAGIC=0xB0C40000
 CONFIG_DFU_MMC=y
 CONFIG_DFU_MTD=y
 CONFIG_DFU_RAM=y

diff --git a/configs/stm32mp15_dhcor_basic_defconfig b/configs/stm32mp15_dhcor_basic_defconfig
index ddd96ac4d2954e0120b0e498fff581987437f54b..7b2b92e15e3f872c16ad77a27023ddb152427131 100644 (file)
--- a/configs/stm32mp15_dhcor_basic_defconfig
+++ b/configs/stm32mp15_dhcor_basic_defconfig
@@ -8,6 +8,8 @@ CONFIG_DEFAULT_DEVICE_TREE="stm32mp15xx-dhcor-avenger96"
 CONFIG_SPL_TEXT_BASE=0x2FFC2500
 CONFIG_SYS_PROMPT="STM32MP> "
 CONFIG_SPL_MMC=y
+CONFIG_BOOTCOUNT_BOOTLIMIT=3
+CONFIG_SYS_BOOTCOUNT_ADDR=0x5C00A14C
 CONFIG_SPL=y
 CONFIG_TARGET_DH_STM32MP1_PDK2=y
 CONFIG_SPL_SPI_FLASH_SUPPORT=y
@@ -72,6 +74,7 @@ CONFIG_CMD_SPI=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_USB_MASS_STORAGE=y
 CONFIG_SYS_DISABLE_AUTOLOAD=y
+CONFIG_CMD_BOOTCOUNT=y
 CONFIG_CMD_CACHE=y
 CONFIG_CMD_TIME=y
 CONFIG_CMD_TIMER=y
@@ -96,6 +99,8 @@ CONFIG_IP_DEFRAG=y
 CONFIG_TFTP_TSIZE=y
 CONFIG_STM32_ADC=y
 CONFIG_SPL_BLOCK_CACHE=y
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_SYS_BOOTCOUNT_MAGIC=0xB0C40000
 CONFIG_DFU_MMC=y
 CONFIG_DFU_MTD=y
 CONFIG_DFU_RAM=y