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[分享] i.MX 8MM从SD卡启动失败MMC card init failed!

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    发表于 2020-5-14 13:26:10 | 显示全部楼层 |阅读模式

    i.MX 8MM从SD卡启动失败MMC card init failed!

    编译固件
    1. <font face="微软雅黑" size="3">bitbake -k core-image-minimal
    2. //编译出的固件
    3. core-image-minimal-imx8mmevk-20190508073946.rootfs.sdcard.bz2
    4. //压缩固件
    5. sudo bzip2 -d core-image-minimal-imx8mmevk.sdcard 
    6. //得到固件
    7. core-image-minimal-imx8mmevk.sdcard
    8. //写入SD卡
    9. sudo dd if=imx8mmevk-avs-synaptics-1.9.sdcard of=/dev/sd<part> bs=1M && sync
    10. </font>
    复制代码
    1.第一次写入的SD卡为8GB/SanDisk , 提示如下,并没有成功启动
    1. <font face="微软雅黑" size="3">U-Boot 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g7ade5b4 (May 08 2019 - 08:18:47 +0000)

    2. CPU:   Freescale i.MX8MMQ rev1.0 1800 MHz (running at 1200 MHz)
    3. CPU:   Commercial temperature grade (0C to 95C) at 47C
    4. Reset cause: POR
    5. Model: FSL i.MX8MM EVK board
    6. DRAM:  2 GiB
    7. TCPC:  Vendor ID [0x1fc9], Product ID [0x5110], Addr [I2C1 0x52]
    8. Power supply on USB2
    9. TCPC:  Vendor ID [0x1fc9], Product ID [0x5110], Addr [I2C1 0x50]
    10. MMC:   FSL_SDHC: 0, FSL_SDHC: 1

    11. // 这里提示错误
    12. Loading Environment from MMC... *** Warning - No block device, using default environment

    13. Failed (-5)
    14. No panel detected: default to MIPI2HDMI
    15. adv7535_init: Can't find device id=0x3d, on bus 1
    16. Display: MIPI2HDMI (1920x1080)
    17. Video: 1920x1080x24
    18. In:    serial
    19. Out:   serial
    20. Err:   serial

    21. BuildInfo:
    22.   - ATF d6451cc
    23.   - U-Boot 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g7ade5b4

    24. flash target is MMC:0
    25. MMC card init failed!
    26. </font>
    复制代码
    2.第二次写入的SD卡为256Mb , 可以成功启动
    1. <font face="微软雅黑" size="3">U-Boot 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g7ade5b4 (May 08 2019 - 08:18:47 +0000)

    2. CPU:   Freescale i.MX8MMQ rev1.0 1800 MHz (running at 1200 MHz)
    3. CPU:   Commercial temperature grade (0C to 95C) at 50C
    4. Reset cause: POR
    5. Model: FSL i.MX8MM EVK board
    6. DRAM:  2 GiB
    7. TCPC:  Vendor ID [0x1fc9], Product ID [0x5110], Addr [I2C1 0x52]
    8. Power supply on USB2
    9. TCPC:  Vendor ID [0x1fc9], Product ID [0x5110], Addr [I2C1 0x50]
    10. MMC:   FSL_SDHC: 0, FSL_SDHC: 1
    11. Loading Environment from MMC... *** Warning - bad CRC, using default environment

    12. Failed (-5)
    13. No panel detected: default to MIPI2HDMI
    14. adv7535_init: Can't find device id=0x3d, on bus 1
    15. Display: MIPI2HDMI (1920x1080)
    16. Video: 1920x1080x24
    17. In:    serial
    18. Out:   serial
    19. Err:   serial

    20. BuildInfo:
    21.   - ATF d6451cc
    22.   - U-Boot 2018.03-imx_v2018.03_4.14.78_1.0.0_ga+g7ade5b4

    23. switch to partitions #0, OK
    24. mmc0 is current device
    25. flash target is MMC:0
    26. Net:   
    27. Warning: ethernet@30be0000 using MAC address from ROM
    28. eth0: ethernet@30be0000
    29. Fastboot: Normal
    30. Normal Boot
    31. Hit any key to stop autoboot:  0
    32. switch to partitions #0, OK
    33. mmc0 is current device
    34. ** Unable to read file boot.scr **
    35. 23065088 bytes read in 1249 ms (17.6 MiB/s)
    36. Booting from mmc ...
    37. 43009 bytes read in 16 ms (2.6 MiB/s)
    38. ## Flattened Device Tree blob at 43000000
    39.    Booting using the fdt blob at 0x43000000
    40.    Using Device Tree in place at 0000000043000000, end 000000004300d800

    41. Starting kernel ...
    42. </font>
    复制代码
    结论
    8GB/SanDisk的提示,应该有些SD卡识别不了导致

    1. <font face="微软雅黑" size="3">Loading Environment from MMC... *** Warning - No block device, using default environment
    2. </font>
    复制代码




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