SK-AM62: DFU Image clarification

prince diwan

Part Number: SK-AM62

We are following this FAQ for DFU image update: https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1127618/faq-sk-am62-how-to-flash-emmc-using-usb-dfu-on-am62x-sk-e2#:~:text=A%20type%2DC%20USB%20connector,to%20eMMC%20%28eMMC%20boot%29

according to this

I have created below DFU image using by changing UBOOT_MACHINE to "am62x_evm_r5_usbdfu_defconfig" this defconfig i only get below images

-rw-r--r-- 2 djadeja 2000 168K Mar 6 09:54 u-boot-r5spl-am62xx-evm-2023.04+gitAUTOINC+b0d717b732-r0_tisdk_1_edgeai_2.bin
lrwxrwxrwx 2 djadeja 2000 77 Mar 6 09:54 u-boot-r5spl.bin -> u-boot-r5spl-am62xx-evm-2023.04+gitAUTOINC+b0d717b732-r0_tisdk_1_edgeai_2.bin
lrwxrwxrwx 2 djadeja 2000 77 Mar 6 09:54 u-boot-r5spl-am62xx-evm.bin -> u-boot-r5spl-am62xx-evm-2023.04+gitAUTOINC+b0d717b732-r0_tisdk_1_edgeai_2.bin
-rw-r--r-- 2 djadeja 2000 303K Mar 6 09:54 tiboot3-am62x-hs-fs-evm-am62xx-evm-k3r5-2023.04+gitAUTOINC+b0d717b732-r0_tisdk_1_edgeai_2.bin
lrwxrwxrwx 2 djadeja 2000 93 Mar 6 09:54 tiboot3-am62x-hs-fs-evm -> tiboot3-am62x-hs-fs-evm-am62xx-evm-k3r5-2023.04+gitAUTOINC+b0d717b732-r0_tisdk_1_edgeai_2.bin
lrwxrwxrwx 2 djadeja 2000 93 Mar 6 09:54 tiboot3.bin -> tiboot3-am62x-hs-fs-evm-am62xx-evm-k3r5-2023.04+gitAUTOINC+b0d717b732-r0_tisdk_1_edgeai_2.bin
-rw-r--r-- 2 djadeja 2000 303K Mar 6 09:54 tiboot3-am62x-hs-evm.bin
-rw-r--r-- 2 djadeja 2000 301K Mar 6 09:54 tiboot3-am62x-gp-evm.bin
-rw-r--r-- 2 djadeja 2000 303K Mar 6 09:54 tiboot3-am62x-hs-fs-evm.bin
-rw-r--r-- 2 djadeja 2000 545 Mar 6 09:55 tisdk-base-image-sdimage-2part-efi.wks
-rw-r--r-- 2 djadeja 2000 6.1K Mar 6 09:55 tisdk-base-image.env
-rw-r--r-- 2 djadeja 2000 157M Mar 6 09:59 tisdk-base-image-am62xx-evm-20240306095358.rootfs.tar.xz
-rw-r--r-- 2 djadeja 2000 91 Mar 6 09:59 tisdk-base-image-am62xx-evm-20240306095358.rootfs.tar.xz.md5sum
lrwxrwxrwx 2 djadeja 2000 56 Mar 6 09:59 tisdk-base-image-am62xx-evm.tar.xz -> tisdk-base-image-am62xx-evm-20240306095358.rootfs.tar.xz
lrwxrwxrwx 2 djadeja 2000 63 Mar 6 09:59 tisdk-base-image-am62xx-evm.tar.xz.md5sum -> tisdk-base-image-am62xx-evm-20240306095358.rootfs.tar.xz.md5sum
-rw-r--r-- 2 djadeja 2000 156M Mar 6 09:59 tisdk-base-image-am62xx-evm-20240306095358.rootfs.cpio.xz
lrwxrwxrwx 2 djadeja 2000 57 Mar 6 09:59 tisdk-base-image-am62xx-evm.cpio.xz -> tisdk-base-image-am62xx-evm-20240306095358.rootfs.cpio.xz
-rw-r--r-- 2 djadeja 2000 165M Mar 6 09:59 tisdk-base-image-am62xx-evm-20240306095358.rootfs.wic.xz
-rw-r--r-- 2 djadeja 2000 3.5K Mar 6 09:59 tisdk-base-image-am62xx-evm-20240306095358.rootfs.wic.bmap
lrwxrwxrwx 2 djadeja 2000 56 Mar 6 09:59 tisdk-base-image-am62xx-evm.wic.xz -> tisdk-base-image-am62xx-evm-20240306095358.rootfs.wic.xz

Now according to below FAQ steps

The following three commands must be used to transfer the U-Boot images from the host to the target:
sudo dfu-util -R -a bootloader -D tiboot3.bin
sudo dfu-util -R -a tispl.bin -D tispl.bin
sudo dfu-util -R -a u-boot.img -D u-boot.img

i'm confuse to which image i will transfer ?

over 2 years ago

0 Bin Liu over 2 years ago

TI__Guru**** 181416 points

Hi Prince,

I don't use Yocto, so I am not familiar with all the output files in the Yocto build, but

prince diwan said:
sudo dfu-util -R -a bootloader -D tiboot3.bin

If you use AM62x HS-FS device, "tiboot3.bin" is file tiboot3-am62x-hs-fs-evm.bin; but if you use AM62x GP devices, "tiboot3.bin" is file tiboot3-am62x-gp-evm.bin.

prince diwan said:
sudo dfu-util -R -a tispl.bin -D tispl.bin

sudo dfu-util -R -a u-boot.img -D u-boot.img

I don't see file tispl.bin or u-boot.img in your list above.

0 prince diwan over 2 years ago in reply to Bin Liu

Prodigy 170 points

Hi Bin Liu,

according this FAQ : https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1127618/faq-sk-am62-how-to-flash-emmc-using-usb-dfu-on-am62x-sk-e2#:~:text=A%20type%2DC%20USB%20connector,to%20eMMC%20%28eMMC%20boot%29\

First i will create image using this "am62x_evm_r5_defconfig" <-- defconfig.

i will successfully generate and fine below images

tiboot3.bin
tispl.bin
u-boot.img

Now i'm generating imgae for DFU boot using this defconfig --> "am62x_evm_r5_usbdfu_defconfig"

Using this i generate only below image

tiboot3.bin

U can see logs in previous FAQ.

Now i confuse should we use same images generated by "am62x_evm_r5_defconfig" this defconfig and replace only this image "tiboot3.bin" generated by DFU boot defconfig "am62x_evm_r5_usbdfu_defconfig".

if not than how can i generate below

tispl.bin
u-boot.img

two images for DFU boot which is not generated in previous FAQ logs.

0 Bin Liu over 2 years ago in reply to prince diwan

TI__Guru**** 181416 points

Hi Prince,

prince diwan said:
Now i'm generating imgae for DFU boot using this defconfig --> "am62x_evm_r5_usbdfu_defconfig"

Using this i generate only below image

tiboot3.bin

The FAQ instruction said

1. These files may be built using the Build U-Boot instructions with “am62x_evm_r5_usbdfu_defconfig” and “am62x_evm_a53_defconfig”.

So you not only use "am62x_evm_r5_usbdfu_defconfig" to generate tiboot3.bin, you also need to use "am62x_evm_a53_defconfig" to generate tispl.bin and u-boot.img.

0 prince diwan over 2 years ago in reply to Bin Liu

Prodigy 170 points

Hi Bin Liu,

Thanks for the response,

For generating both DFU image and EMMC image, we do not need to change "am62x_evm_a53_defconfig" so the tispl.bin and u-boot image is common for both DFU image upgrade and EMMC image upgrade?

Regards,

Prince diwan

0 Bin Liu over 2 years ago in reply to prince diwan

TI__Guru**** 181416 points

Hi Prince,

If both DFU image and eMMC image are built from the same U-Boot source and the A53 defconfig has no change, I think yes you can reuse the image file tispl.bin and u-boot.img.

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SK-AM62: DFU Image clarification