S32G中的主题 Re: S32G274a - eMMC boot blocks

S32G274a - eMMC boot blocks

nakrachi — Fri, 02 Aug 2024 10:43:21 GMT

Hello,

I am trying to boot from eMMC boot blocks BOOT0/1 partition (mmcblk0boot0 and mmcblk0boot1)

I loaded fip image at an offset of 0x1000, in both BOOT0/1 and User partitions.

I also updated PARTITION_CONFIG to set it to boot from BOOT0 or BOOT1 partition, but no matter what I do, it always boots from USER partition.

I am wondering, if it is even possible to select boot partitions for booting ? is it a limitation of the BootROM ?

I've tried to set the boot partition with both Linux and u-boot, but no success so far.

=> mmc partconf 0

EXT_CSD[179], PARTITION_CONFIG:

BOOT_ACK: 0x1

BOOT_PARTITION_ENABLE: 0x1

PARTITION_ACCESS: 0x0

Daniel-Aguirre — Fri, 02 Aug 2024 15:03:41 GMT

Overall, we understand that BootROM doesn’t support booting from boot partition of eMMC. We do apologize.

Please, let us know.

nakrachi — Fri, 02 Aug 2024 18:38:13 GMT

Thank you,

is there a workaround for this ? can the BootROM be updated/patched ?

Daniel-Aguirre — Fri, 02 Aug 2024 22:25:28 GMT

Hi,

Thanks for your feedback. On regards of BootROM, we understand that there is no current patch (nor way to do it), we do apologize.

Please, let us know.