On 2021/7/4 1:24, Michael Nazzareno Trimarchi wrote:
Hi allI have some problems that I have understood and fixed but I can not explain. Right now I have on imx8mn that can boot from boot0 or boot1 partition after remove a condition in the is_boot_from_stream_device This is a boot from mmcblk0boot0 with some debug U-Boot SPL 2020.04-5.4.70-2.3.2+gf3bcbdfc62 (Jul 03 2021 - 17:00:27 +0000) power_bd71837_init DDRINFO: start DRAM init DDRINFO: DRAM rate 1600MTS DDRINFO:ddrphy calibration done DDRINFO: ddrmix config done Normal Boot Trying to boot from BOOTROM ROM API interface 2 from boot 131073 Interface is 2 MMC and boot is 131073 and according to this static int is_boot_from_stream_device(u32 boot) +{ + u32 interface; + + interface = boot >> 16; + if (interface >= BT_DEV_TYPE_USB) + return 1; + + if (interface == BT_DEV_TYPE_MMC && (boot & 1)) + return 1; + + return 0; +} means a stream interface but it does not boot. Boot from boot1 give 131072 that is boot1 this let device boot because
Who gives 131073? Boot from boot1, you mean emmc boot partition0?
is_boot_from_stream_device is 0 and romapi use spl_romapi_load_image_seekable Remove boot & 1 condition let me boot from mmcblk0boot0 and mmcblk0boot1 without any problem
Have you enabled emmc fastboot in fuse? boot & 1 is checking emmc fastboot. emmc fastboot mode is actually stream device. If fastboot mode enabled, you need burn your flash.bin into offset 0. Not 32KB offset. Regards, Peng.
mmc partconf 0 EXT_CSD[179], PARTITION_CONFIG: BOOT_ACK: 0x0 BOOT_PARTITION_ENABLE: 0x1 PARTITION_ACCESS: 0x0 and the board was fused already. Any idea why? Michael
