18 Oct
2023
18 Oct
'23
8:17 p.m.
From: Fedor Ross fedor.ross@ifm.com In case of a secondary image boot from the user area of an eMMC device, the correct offset must be calculated. The offset is fused in the fuse IMG_CNTN_SET1_OFFSET of the i.MX8M Nano and Plus. The calculation of the offset is described in the reference manual (IMX8MNRM Rev. 2, 07/2022 and IMX8MPRM Rev. 1, 06/2021): The fuse IMG_CNTN_SET1_OFFSET (0x490[22:19]) is defined as follows:
- Secondary boot is disabled if fuse value is bigger than 10, n = fuse value bigger than 10.
- n == 0: Offset = 4MB
- n == 2: Offset = 1MB
- Others & n <= 10 : Offset = 1MB*2^n
Signed-off-by: Fedor Ross fedor.ross@ifm.com Signed-off-by: Marek Vasut marex@denx.de
Applied to u-boot-imx, master, thanks !
Best regards, Stefano Babic
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