Hello. I've got the trouble with u-boot and samsung emmc: partition table can't be determined.

U-Boot > mmc dev 2 ===> test_block_type error 1: (buffer[DOS_PART_MAGIC_OFFSET + 0] != 0x55) || (buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) bad MBR sector signature: 0x9966 ===> test_part_dos error: test_block_type(buffer) != DOS_MBR switch to partitions #0, OK mmc2(part 0) is current device

CMD_TRACE: ... CMD_SEND:8 ARG 0x000001AA RET: -19 , 0xffffffed MMC_RSP_R1,5,6,7 0x2FF67610 CMD_SEND:55 ARG 0x00000000 RET: -19 , 0xffffffed MMC_RSP_R1,5,6,7 0x2FF67610 ... CMD_SEND:8 ARG 0x00000000 RET: -19 , 0xffffffed MMC_RSP_R1,5,6,7 0x00000900 ...

U-Boot > mmc info Device: FSL_SDHC Manufacturer ID: 90 OEM: 14a Name: H8G1e Tran Speed: 52000000 Rd Block Len: 512 MMC version 5.0 High Capacity: Yes Capacity: 7.3 GiB Bus Width: 1-bit Erase Group Size: 512 KiB HC WP Group Size: 8 MiB User Capacity: 7.3 GiB WRREL Boot Capacity: 4 MiB ENH RPMB Capacity: 512 KiB ENH

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In same time Linux kernel works fine with that emmc:

# fdisk -l /dev/mmcblk3 Disk /dev/mmcblk3: 7.3 GiB, 7818182656 bytes, 15269888 sectors Units: sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disklabel type: dos Disk identifier: 0x3f1bef1e Device Boot Start End Sectors Size Id Type /dev/mmcblk3p1 2048 133119 131072 64M 83 Linux

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Does anyone have any idea? What is error code -19 ? Thanks!