[参考译文] AM623：定制电路板- AM623 - NAND 引导不工作

您好！

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此致、
Aparna

你好、RJ

Unknown 说：

但尝试从主引导模式引导时它无法正常工作、主引导配置 GPMC-NAND 和辅助引导是 USB。

Unknown 说：

]但我们在尝试初始引导时发现 USB-DFU 无法检测到问题 sudo dfu-util -l  显示无可用器件)[/QUOT]

请澄清一下关于 GPMC NAND 主引导或 USB-DFU 次级引导的问题？

你好、RJ

感谢您提供的信息。

听起来通过 USB-DFU 刷写到 NAND 中的 U-Boot 二进制文件不正确。 然后 ROM 将引导加载程序加载到存储器、但未能在 R5F 上执行它。 但在这一点上、ROM 已完成、无法切换到第二引导模式(DFU)。

为了确认这一点、如果您的电路板具有 JTAG 连接、您可以尝试在 CCS 中连接到 R5、并查看它的 PC 地址是什么。

刘斌、您好！

感谢您的意见、

Gong Ping 说：

如果您的电路板具有 JTAG 连接、您可以尝试在 CCS 中连接 R5、并查看它的 PC 地址是什么。

你可以分享任何文档链接如何调试这个.

平地机、

-RJ

你好、RJ

我没有用于此用途的文档、但当您在 CCS 中启动 AM62x 配置后、请尝试连接到 R5内核。 如果连接失败、则可能意味着执行仍在 ROM 中、R5内核尚未初始化。 但是、如果您可以连接到 R5内核、CCS 寄存器窗口将显示所有 R5寄存器、请注意 PC 寄存器的值。

刘斌、您好！

我尝试用 XDS110连接,在 CCS 中选择目标为 AM62和连接为德州仪器 XDS110 USB 调试探针后,当我尝试 验证它显示错误,

此错误是由 TI 的 USCIF 驱动程序或实用程序产生的。

值为'-233'(0xffffff17)。
标题为"SC_ERR_PATH_BROKed"。

此致、

RJ

你好、RJ

让我们采取另一种方法、我可以肯定问题是 NAND 映像(tiboot3.bin)没有正确刷写、这会导致 ROM 加载但无法运行。

您能否提供详细信息和/或控制台日志、以显示您使用 DFU 配置和刷写 NAND 映像的确切方式？

您还提到、您可以从 eMMC 引导、然后刷写 NAND。 从 eMMC 刷写后、您是否可以从 NAND 引导？ 您还可以提供 eMMC 刷写过程的详细信息供我们查看。

另请检查有关 NAND 刷写和引导的以下说明。

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1402705/faq-how-to-flash-and-boot-u-boot-from-parallel-gpmc-nand-on-am62x

刘斌、您好！

Gong Ping 说：

您能否提供详细信息和/或控制台日志来说明您使用 DFU 配置和刷写 NAND 映像的确切方式？

连接以下、

------------Build changes for NAND in SDK 10.00.07.04------------


UBOOT_MACHINE_R5=am62x_lpsk_r5_gpmc_defconfig



----------------uboot log---------------------------

U-Boot SPL 2024.04-dirty (Jan 02 2025 - 14:11:41 +0530)
SYSFW ABI: 4.0 (firmware rev 0x000a '10.0.8--v10.00.08 (Fiery Fox)')
SPL initial stack usage: 13392 bytes
Trying to boot from DFU
#########################################################DOWNLOAD ... OK
Ctrl+C to exit ...
############################################################DOWNLOAD ... OK
Ctrl+C to exit ...                                                    
Authentication passed                                                 
Authentication passed                                                 
Authentication passed                                                 
Loading Environment from nowhere... OK
init_env from device 10 not supported!
Authentication passed
Authentication passed
Starting ATF on ARM64 core...
 
NOTICE:  BL31: v2.10.0(release):v2.10.0-367-g00f1ec6b87-dirty
NOTICE:  BL31: Built : 16:09:05, Feb  9 2024
 
U-Boot SPL 2024.04-dirty (Jan 02 2025 - 14:12:20 +0530)
SYSFW ABI: 4.0 (firmware rev 0x000a '10.0.8--v10.00.08 (Fiery Fox)')
SPL initial stack usage: 1888 bytes
** Bad device specification mmc 1 **
Couldn't find partition mmc 1:1
Error: could not access storage.
Trying to boot from DFU
Authentication passed
Authentication passed
 
 
U-Boot 2024.04-dirty (Jan 02 2025 - 14:12:20 +0530)
 
SoC:   AM62X SR1.0 HS-FS
Model: Texas Instruments AM625 SK
EEPROM not available at 0x50, trying to read at 0x51
Reading on-board EEPROM at 0x51 failed -19
DRAM:  1 GiB
Core:  59 devices, 30 uclasses, devicetree: separate
NAND:  256 MiB
MMC:   mmc@fa10000: 0
Loading Environment from nowhere... OK
In:    serial
Out:   serial
Err:   serial
EEPROM not available at 0x50, trying to read at 0x51
Reading on-board EEPROM at 0x51 failed -121
Net:   eth0: ethernet@8000000port@1
Hit any key to stop autoboot:  0 
=> nand erase.chip
 
NAND erase.chip: device 0 whole chip
Erasing at 0xffe0000 -- 100% complete.
OK
=> setenv dfu_alt_info "tiboot3.bin raw 0x0 0x200000; tispl.bin raw 0x200000 0x400000; u-boot.img raw 0x6000"
=> dfu 0 mtd nand0
generic_phy_get_bulk : no phys property
###DOWNLOAD ... OK
Ctrl+C to exit ...
#########DOWNLOAD ... OK
Ctrl+C to exit ...
########DOWNLOAD ... OK
Ctrl+C to exit ...


-----------------dfu log -----------------------------------------------

:~/tisdk/board-support/u-boot-build/bin/nand_usb_v2$ sudo dfu-util -l
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/.../
 
Found DFU: [0451:6165] ver=0223, devnum=67, cfg=1, intf=0, path="1-9", alt=2, name="u-boot.img", serial="0000000000000000"
Found DFU: [0451:6165] ver=0223, devnum=67, cfg=1, intf=0, path="1-9", alt=1, name="tispl.bin", serial="0000000000000000"
Found DFU: [0451:6165] ver=0223, devnum=67, cfg=1, intf=0, path="1-9", alt=0, name="tiboot3.bin", serial="0000000000000000"
:~/tisdk/board-support/u-boot-build/bin/nand_usb_v2$ cd ../nand
:~/tisdk/board-support/u-boot-build/bin/nand$ 
:~/tisdk/board-support/u-boot-build/bin/nand$ sudo dfu-util -a 0 -D tiboot3.bin
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: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
Opening DFU capable USB device...
ID 0451:6165
Run-time device DFU version 0110
Claiming USB DFU Interface...
Setting Alternate Setting #0 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 0110
Device returned transfer size 4096
Copying data from PC to DFU device
Download	[=========================] 100%       323062 bytes
Download done.
state(7) = dfuMANIFEST, status(0) = No error condition is present
state(2) = dfuIDLE, status(0) = No error condition is present
Done!
:~/tisdk/board-support/u-boot-build/bin/nand$ sudo dfu-util -a 1 -D tispl.bin
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: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
Opening DFU capable USB device...
ID 0451:6165
Run-time device DFU version 0110
Claiming USB DFU Interface...
Setting Alternate Setting #1 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 0110
Device returned transfer size 4096
Copying data from PC to DFU device
Download	[=========================] 100%      1111383 bytes
Download done.
state(7) = dfuMANIFEST, status(0) = No error condition is present
state(2) = dfuIDLE, status(0) = No error condition is present
Done!
:~/tisdk/board-support/u-boot-build/bin/nand$ sudo dfu-util -a 2 -D u-boot.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: Invalid DFU suffix signature
dfu-util: A valid DFU suffix will be required in a future dfu-util release!!!
Opening DFU capable USB device...
ID 0451:6165
Run-time device DFU version 0110
Claiming USB DFU Interface...
Setting Alternate Setting #2 ...
Determining device status: state = dfuIDLE, status = 0
dfuIDLE, continuing
DFU mode device DFU version 0110
Device returned transfer size 4096
Copying data from PC to DFU device
Download	[=========================] 100%      1004467 bytes
Download done.
state(7) = dfuMANIFEST, status(0) = No error condition is present
state(2) = dfuIDLE, status(0) = No error condition is present
Done!
----------------------------------------------------------------------------------------------

此致、

RJ

尊敬的 Hong：

pengwei yu 说：

这是关于在 AM62x 上使用 USB-DFU 将 u-boot 刷写到 GPMC-NAND 中以供参考的常见问题解答

根据上面的引用附加日志、

Unknown 说：

附加到下面、

此致、

RJ

我在上次的回复中忘记添加常见问题解答链接了。
下面是有关在 AM62x 上使用 USB-DFU 将 u-boot 刷写到 GPMC-NAND 以进行重新引用的常见问题解答链接。
https://e2e.ti.com/support/processors-group/processors/f/791/t/1460090
此致！
-hong

尊敬的 Hong：

我已经获得了链接,和日志附加在上面以前的回放,

此致、

-RJ