u-boot.git/include/configs/smegw01.h, branch main

env: migrate static flags list to Kconfig

2026-05-25T19:44:40Z

Environment callbacks can already be configured from Kconfig with CONFIG_ENV_CALLBACK_LIST_STATIC, but static environment flags still require board headers to define CFG_ENV_FLAGS_LIST_STATIC. Add CONFIG_ENV_FLAGS_LIST_STATIC and use it as the only board-provided static environment flags list. Convert the remaining default-config users from CFG_ENV_FLAGS_LIST_STATIC to defconfig settings and drop the legacy header macro from ENV_FLAGS_LIST_STATIC. Move the environment flags format documentation out of README and into the developer environment documentation. Include the format in the Kconfig help as well. This lets boards configure writeable-list policy and type validation from defconfig without adding a config header solely for env flags. This preserves the behavior of default configs. Header-only cases that were inactive in upstream defconfigs are not converted into defconfig entries: iot2050 can add its list when enabling ENV_WRITEABLE_LIST, and smegw01 can add mmcdev:dw support if the unlocked SYS_BOOT_LOCKED=n configuration is needed. Signed-off-by: James Hilliard Reviewed-by: Tom Rini Reviewed-by: Simon Glass Reviewed-by: Alexander Sverdlin Reviewed-by: Walter Schweizer

smegw01: Convert CFG_EXTRA_ENV_SETTINGS to an env file

2023-05-02T08:57:32Z

Currently, it is recommended to move from CFG_EXTRA_ENV_SETTINGS to an env file, so do the conversion. Suggested-by: Tom Rini Signed-off-by: Fabio Estevam Reviewed-by: Tom Rini

smegw01: Add lockdown U-Boot env support

2023-05-02T08:57:32Z

Add lockdown U-Boot env support so that only certain U-Boot environment variables are allowed to be modified. Signed-off-by: Eduard Strehlau Signed-off-by: Fabio Estevam

smegw01: Switch to fitImage

2023-05-02T08:57:32Z

Instead of loading the zImage kernel and the devicetree separately, switch to the fitImage format, which is more convenient when working with secure boot, for example. Signed-off-by: Eduard Strehlau Signed-off-by: Fabio Estevam

smegw01: Change default boot device to eMMC

2023-05-02T08:57:32Z

Let eMMC be the default boot medium. Signed-off-by: Eduard Strehlau Signed-off-by: Fabio Estevam

smegw01: Enable EMMC boot from multiple partitions

2023-05-02T08:57:32Z

GPT Partition labels are used for determining the right root filesystem to boot from. The U-Boot environment is configured to reside in the eMMC hardware boot partition we are currently booted from. This should enable a dual copy approach for upgrading the bootloader. One can overwrite the inactive hardware partition with new bootloader and environment and afterwards switch the eMMC boot partition for an atomic bootloader switch. Signed-off-by: Eduard Strehlau Signed-off-by: Fabio Estevam

smegw01: Only commit to new partition if update was successful

2023-05-02T08:57:32Z

When performing rootfs update via swupdate, it is convenient to check the 'ustate' variable to decide whether the update succeeded or not. Signed-off-by: Eduard Strehlau Signed-off-by: Fabio Estevam

smegw01: Run altbootcmd in the case of failure

2023-05-02T08:57:32Z

Run the altbootcmd script if any step of bootcmd fails. This ensures that always a valid image can be run. Signed-off-by: Eduard Strehlau Signed-off-by: Fabio Estevam

smegw01: Add altbootcmd

2023-05-02T08:57:32Z

Add an altbootcmd script, which is convenient way to integrate with swupdate and perform a roll back of the previous working version in the case of update failure. Signed-off-by: Eduard Strehlau Signed-off-by: Fabio Estevam

smegw01: Enable setting additional boot params

2023-05-02T08:57:32Z

Introduce EXTRA_BOOTPARAMS to allow passing additional parameters to kernel command line. This is useful for debugging purposes. Signed-off-by: Eduard Strehlau Signed-off-by: Fabio Estevam