On Wednesday 06 April 2022 21:31:18 Marek Behún wrote:
On Wed, 6 Apr 2022 11:39:34 +0200 Pali Rohár pali@kernel.org wrote:
U-Boot for Turris Omnia is always compiled with MMC, SCSI and USB support, so always enable macros for booting from these devices.
This is not true. Attaching config where scsi is disabled.
If we want to enforce MMC, SCSI and USB, we should add select MMC and others to Kconfig under TURRIS_OMNIA. But do we want to enfore these?
Marek
IIRC macro BOOT_TARGET_DEVICES just defines default values for ENV. So in default ENV would be macros for booting from SCSI, MMC and USB targets. Which means that if you call saveenv on U-Boot compiled with all these options and then replace U-Boot with the one without e.g. MMC support, it does not replace env variables for MMC booting.
Anyway, does not defining e.g. SCSI booting env variables on U-Boot without SCSI support result in the same state as defining SCSI booting env variables on U-Boot with SCSI support with disconnected SCSI controllers or disks? In both cases there would be no SCSI suitable boot device.