[参考译文] SK-AM62A-LP：无法使用 dfu-util 将 rootfs 刷写到 eMMC。

admin

Guru**** 2015290 points

Other Parts Discussed in Thread: SK-AM62A-LP

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1363543/sk-am62a-lp-cannot-flash-rootfs-to-emmc-with-dfu-util

器件型号：SK-AM62A-LP

您好！

为了使用 DFU-util 通过 SK-AM62A-LP 上刷写 eMMC Foundational_Components、我一直遵循以下说明：https://software-dl.ti.com/processor-sdk-linux/esd/AM62AX/09_02_00/exports/docs/linux/？highlight-Boot/UG- Memory.html？rootfs

我能够在 DFU 模式下将 tiboot3、tispl 和 u-boot 二进制文件复制到电路板。然后、我可以引导至 u-boot。但是、为了引导 Linux、我在将根目录刷写到 eMMC 时遇到了问题。以下是我在 u-boot 侧看到的情况：

Fullscreen

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
=> mmc dev
switch to partitions #0, OK
mmc0(part 0) is current device
=> mmc list
mmc@fa10000: 0 (eMMC)
mmc@fa00000: 1
=> mmc dev 0
switch to partitions #0, OK
mmc0(part 0) is current device
=> mmc part
Partition Map for MMC device 0  --   Partition Type: DOS
Part    Start Sector    Num Sectors     UUID            Type
  1     2048            262144          45d053b8-01     0c Boot
  2     264192          30816256        45d053b8-02     83
=> printenv partitions
partitions=name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}
=> setenv dfu_alt_info ${dfu_alt_info_emmc}
=> printenv dfu_alt_info 
dfu_alt_info=rawemmc raw 0 0x800000 mmcpart 1; rootfs part 0 1; tiboot3.bin.raw raw 0x0 0x400 mmcpart 1; tispl.bin.raw raw 0x400 0x1000 mmcpart 1; u-boot.img.raw raw 0x1400 0x2000 mmcpart 1; u-env.raw raw 0x3400 0x100 m
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

=> mmc dev
switch to partitions #0, OK
mmc0(part 0) is current device
=> mmc list
mmc@fa10000: 0 (eMMC)
mmc@fa00000: 1
=> mmc dev 0
switch to partitions #0, OK
mmc0(part 0) is current device
=> mmc part

Partition Map for MMC device 0  --   Partition Type: DOS

Part    Start Sector    Num Sectors     UUID            Type
  1     2048            262144          45d053b8-01     0c Boot
  2     264192          30816256        45d053b8-02     83
=> printenv partitions
partitions=name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}
=> setenv dfu_alt_info ${dfu_alt_info_emmc}
=> printenv dfu_alt_info 
dfu_alt_info=rawemmc raw 0 0x800000 mmcpart 1; rootfs part 0 1; tiboot3.bin.raw raw 0x0 0x400 mmcpart 1; tispl.bin.raw raw 0x400 0x1000 mmcpart 1; u-boot.img.raw raw 0x1400 0x2000 mmcpart 1; u-env.raw raw 0x3400 0x100 m
mcpart 1; sysfw.itb.raw raw 0x3600 0x800 mmcpart 1
=> printenv partitions
partitions=name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}
=> dfu 0 mmc 0

然后、在主机端、我可以看到器件、但是、当我尝试刷写 rootfs 时、我甚至在它开始之前就收到错误。刷写 tiboot3、tispl 和 u-boot 可以正常工作：

Fullscreen

1
2
3
4
5
6
7
8
9
➜  ~ dfu-util -a rootfs -D tisdk-tiny-image.img
dfu-util 0.9
Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to sourceforge.net/.../
dfu-util: File size is too big: Success
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

➜  ~ dfu-util -a rootfs -D tisdk-tiny-image.img
dfu-util 0.9

Copyright 2005-2009 Weston Schmidt, Harald Welte and OpenMoko Inc.
Copyright 2010-2016 Tormod Volden and Stefan Schmidt
This program is Free Software and has ABSOLUTELY NO WARRANTY
Please report bugs to sourceforge.net/.../

dfu-util: File size is too big: Success

我尝试使用 SDK 随附的微型映像根：

Fullscreen

1
2
3
4
➜  ~ file tisdk-tiny-image.img
tisdk-tiny-image.img: Linux rev 1.0 ext4 filesystem data, UUID=42d01c53-0903-49b3-9287-ef64c6588054 (extents) (64bit) (large files) (huge files)
➜  ~ du -sh tisdk-tiny-image.img
164M    tisdk-tiny-image.img
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

➜  ~ file tisdk-tiny-image.img
tisdk-tiny-image.img: Linux rev 1.0 ext4 filesystem data, UUID=42d01c53-0903-49b3-9287-ef64c6588054 (extents) (64bit) (large files) (huge files)
➜  ~ du -sh tisdk-tiny-image.img
164M	tisdk-tiny-image.img

鉴于错误："dfu-util：文件大小过大"、我尝试在 u-boot defconfig 中增加 CONFIG_SYS_DFU_MAX_FILE_SIZE 参数。我将其更改为 0x10000000 (256M)、它最初是 0x800000。但是、当运行 DFU 命令时、我会在 u-boot 中遇到以下错误：

Fullscreen

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
=> mmc list
mmc@fa10000: 0 (eMMC)
mmc@fa00000: 1
=> mmc dev 0
switch to partitions #0, OK
mmc0(part 0) is current device
=> mmc part
Partition Map for MMC device 0  --   Partition Type: DOS
Part    Start Sector    Num Sectors     UUID            Type
  1     2048            262144          45d053b8-01     0c Boot
  2     264192          30816256        45d053b8-02     83
=> printenv partitions
partitions=name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}
=> setenv dfu_alt_info ${dfu_alt_info_emmc}
=> printenv dfu_alt_info
dfu_alt_info=rawemmc raw 0 0x800000 mmcpart 1; rootfs part 0 1; tiboot3.bin.raw raw 0x0 0x400 mmcpart 1; tispl.bin.raw raw 0x400 0x1000 mmcpart 1; u-boot.img.raw raw 0x1400 0x2000 mmcpart 1; u-env.raw raw 0x3400 0x100 m
mcpart 1; sysfw.itb.raw raw 0x3600 0x800 mmcpart 1
=> dfu 0 mmc 0
Could not memalign 0x10000000 bytesDFU entities configuration failed!
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX

=> mmc list
mmc@fa10000: 0 (eMMC)
mmc@fa00000: 1
=> mmc dev 0
switch to partitions #0, OK
mmc0(part 0) is current device
=> mmc part

Partition Map for MMC device 0  --   Partition Type: DOS

Part    Start Sector    Num Sectors     UUID            Type
  1     2048            262144          45d053b8-01     0c Boot
  2     264192          30816256        45d053b8-02     83
=> printenv partitions
partitions=name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}
=> setenv dfu_alt_info ${dfu_alt_info_emmc}
=> printenv dfu_alt_info
dfu_alt_info=rawemmc raw 0 0x800000 mmcpart 1; rootfs part 0 1; tiboot3.bin.raw raw 0x0 0x400 mmcpart 1; tispl.bin.raw raw 0x400 0x1000 mmcpart 1; u-boot.img.raw raw 0x1400 0x2000 mmcpart 1; u-env.raw raw 0x3400 0x100 m
mcpart 1; sysfw.itb.raw raw 0x3600 0x800 mmcpart 1
=> dfu 0 mmc 0
Could not memalign 0x10000000 bytesDFU entities configuration failed!
(partition table does not match dfu_alt_info?)

现在我正在使用 SK-AM62A-LP、但我对涉及 SD 卡的解决方案不感兴趣、因为我们带 AM62A 的电路板将不含 SD 卡、只有 eMMC。

是否有关于如何通过 USB-DFU 成功刷写 rootfs 的任何想法？ eMMC 是否未正确分区？

提前感谢、

埃文

11 个月前

0 admin 11 个月前

TI__Guru**** 2015290 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

您好！

我试图在 u-boot defconfig 中增加 CONFIG_SYS_DFU_MAX_FILE_SIZE 参数。我将其更改为 0x10000000 (256M)、它最初是 0x800000。

由于主机端 dfu-util v0.9的文件大小限制、您应该恢复这些更改。

另请使用此处建议的 dfu-util v0.11

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1314130/sk-am62-sk-am62x-e3-usb-dfu-method-to-load-custom-image-to-emmc

dfu-util.sourceforge.net/.../

此致、

普拉桑特

0 admin 11 个月前

TI__Guru**** 2015290 points

请注意，本文内容源自机器翻译，可能存在语法或其它翻译错误，仅供参考。如需获取准确内容，请参阅链接中的英语原文或自行翻译。

感谢 Prashant!

处理器（参考译文帖）

处理器（参考译文帖）(Read Only)

[参考译文] SK-AM62A-LP：无法使用 dfu-util 将 rootfs 刷写到 eMMC。