[PATCH 2/3] stm32mp1: use a specific SD/eMMC partition for U-Boot enviromnent

[Patrick Delaunay]

Save the environment at the end of the U-Boot partition, the GPT
partition named "ssbl" in SD card or eMMC and avoid requirements
on the "bootfs" file system generated via specific raw tools
(like wic and genimage).

With the previous configuration of the U-Boot environment saved in ext4
file, U-Boot need to create/modify the file uenv.txt in the ext4 file
system; so this EXT4 file system need to be generated without some
functionality, like metadata_csum and dir_index, because they are not
supported by U-Boot.

Signed-off-by: Patrick Delaunay <patrick.delaunay at st.com>
---

 arch/arm/dts/stm32mp157a-avenger96-u-boot.dtsi | 1 +
 arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi       | 1 +
 arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi       | 1 +
 configs/stm32mp15_basic_defconfig              | 5 +----
 configs/stm32mp15_optee_defconfig              | 5 +----
 configs/stm32mp15_trusted_defconfig            | 5 +----
 6 files changed, 6 insertions(+), 12 deletions(-)

diff --git a/arch/arm/dts/stm32mp157a-avenger96-u-boot.dtsi b/arch/arm/dts/stm32mp157a-avenger96-u-boot.dtsi
index d6dc746365..8e49c47a1d 100644
--- a/arch/arm/dts/stm32mp157a-avenger96-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp157a-avenger96-u-boot.dtsi
@@ -20,6 +20,7 @@
 	config {
 		u-boot,boot-led = "led1";
 		u-boot,error-led = "led4";
+		u-boot,mmc-env-partition = "ssbl";
 	};
 };
 
diff --git a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
index a5cc01dd19..e3f75208fd 100644
--- a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
@@ -16,6 +16,7 @@
 	config {
 		u-boot,boot-led = "heartbeat";
 		u-boot,error-led = "error";
+		u-boot,mmc-env-partition = "ssbl";
 		st,adc_usb_pd = <&adc1 18>, <&adc1 19>;
 		st,fastboot-gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
 		st,stm32prog-gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
diff --git a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
index 347edf7e58..4d00ec618a 100644
--- a/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
@@ -17,6 +17,7 @@
 	config {
 		u-boot,boot-led = "heartbeat";
 		u-boot,error-led = "error";
+		u-boot,mmc-env-partition = "ssbl";
 		st,fastboot-gpios = <&gpioa 13 GPIO_ACTIVE_LOW>;
 		st,stm32prog-gpios = <&gpioa 14 GPIO_ACTIVE_LOW>;
 	};
diff --git a/configs/stm32mp15_basic_defconfig b/configs/stm32mp15_basic_defconfig
index 6d82365348..dd55a8b632 100644
--- a/configs/stm32mp15_basic_defconfig
+++ b/configs/stm32mp15_basic_defconfig
@@ -55,13 +55,10 @@ CONFIG_CMD_UBI=y
 CONFIG_DEFAULT_DEVICE_TREE="stm32mp157c-ev1"
 CONFIG_OF_SPL_REMOVE_PROPS="interrupts interrupt-names interrupts-extended interrupt-controller \\\#interrupt-cells interrupt-parent dmas dma-names assigned-clocks assigned-clock-rates assigned-clock-parents hwlocks"
 CONFIG_ENV_IS_NOWHERE=y
-CONFIG_ENV_IS_IN_EXT4=y
+CONFIG_ENV_IS_IN_MMC=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_ENV_IS_IN_UBI=y
 CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
-CONFIG_ENV_EXT4_INTERFACE="mmc"
-CONFIG_ENV_EXT4_DEVICE_AND_PART="0:auto"
-CONFIG_ENV_EXT4_FILE="/uboot.env"
 CONFIG_ENV_UBI_PART="UBI"
 CONFIG_ENV_UBI_VOLUME="uboot_config"
 CONFIG_ENV_UBI_VOLUME_REDUND="uboot_config_r"
diff --git a/configs/stm32mp15_optee_defconfig b/configs/stm32mp15_optee_defconfig
index 298611776d..1f40669872 100644
--- a/configs/stm32mp15_optee_defconfig
+++ b/configs/stm32mp15_optee_defconfig
@@ -42,13 +42,10 @@ CONFIG_CMD_MTDPARTS=y
 CONFIG_CMD_UBI=y
 CONFIG_DEFAULT_DEVICE_TREE="stm32mp157c-ev1"
 CONFIG_ENV_IS_NOWHERE=y
-CONFIG_ENV_IS_IN_EXT4=y
+CONFIG_ENV_IS_IN_MMC=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_ENV_IS_IN_UBI=y
 CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
-CONFIG_ENV_EXT4_INTERFACE="mmc"
-CONFIG_ENV_EXT4_DEVICE_AND_PART="0:auto"
-CONFIG_ENV_EXT4_FILE="/uboot.env"
 CONFIG_ENV_UBI_PART="UBI"
 CONFIG_ENV_UBI_VOLUME="uboot_config"
 CONFIG_ENV_UBI_VOLUME_REDUND="uboot_config_r"
diff --git a/configs/stm32mp15_trusted_defconfig b/configs/stm32mp15_trusted_defconfig
index 6928e9a65c..7dae7663b0 100644
--- a/configs/stm32mp15_trusted_defconfig
+++ b/configs/stm32mp15_trusted_defconfig
@@ -41,13 +41,10 @@ CONFIG_CMD_MTDPARTS=y
 CONFIG_CMD_UBI=y
 CONFIG_DEFAULT_DEVICE_TREE="stm32mp157c-ev1"
 CONFIG_ENV_IS_NOWHERE=y
-CONFIG_ENV_IS_IN_EXT4=y
+CONFIG_ENV_IS_IN_MMC=y
 CONFIG_ENV_IS_IN_SPI_FLASH=y
 CONFIG_ENV_IS_IN_UBI=y
 CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
-CONFIG_ENV_EXT4_INTERFACE="mmc"
-CONFIG_ENV_EXT4_DEVICE_AND_PART="0:auto"
-CONFIG_ENV_EXT4_FILE="/uboot.env"
 CONFIG_ENV_UBI_PART="UBI"
 CONFIG_ENV_UBI_VOLUME="uboot_config"
 CONFIG_ENV_UBI_VOLUME_REDUND="uboot_config_r"
-- 
2.17.1