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stm32mp1: use a specific SD/eMMC partition for U-Boot enviromnent

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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.

Reviewed-by: Patrice Chotard <patrice.chotard@st.com>
Signed-off-by: Patrick Delaunay <patrick.delaunay@st.com>
This commit is contained in:
Patrick Delaunay 2020-06-15 11:18:23 +02:00 committed by Patrice Chotard
parent a9addcafd1
commit 76db1681da
4 changed files with 4 additions and 8 deletions
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1
arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
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@ -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>;

1
arch/arm/dts/stm32mp157c-ed1-u-boot.dtsi
View File

@ -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>;
};

5
configs/stm32mp15_basic_defconfig
View File

@ -59,13 +59,10 @@ CONFIG_CMD_UBI=y
# CONFIG_SPL_DOS_PARTITION is not set
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"

5
configs/stm32mp15_trusted_defconfig
View File

@ -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"