[uuu] Flashing image very slow

[WolsYang]

Hi NXP,

I am trying to flash Linux 5.15.52_2.1.0 to my i.MX 8QXP board 128G emmc, but got really slow speed as video.()

But if I use

L5.10.35_2.0.0_MX8QXPC0 > imx-boot-imx8qxpc0mek-sd.bin-flash_spl

With 5.15.52

imx-image-full-imx8qxpc0mek.wic 

I can get normal flashing speed(Should be done in 10 min).

Can I change some config to make it faster?

[Harvey021]

Hi @WolsYang 

The process to flash Linux 5.15.52_2.1.0 to board will take longer time to uncompress, probably. 

Would suggest use the way uuu emmc_all bootloader rootfs.

Best regards

Harvey

[WolsYang]

Hi @Harvey021 

Did you mean 

sudo ~/mfgtools/uuu/uuu -v -V -b  emmc_all imx-boot-imx8qxpc0mek-sd.bin-flash_spl imx-image-full-imx8qxpc0mek.wic 

 I have tried this way and uuu.auto, but still very slow.

[WolsYang]

Since the Flashing program will stop at " Flashing Sparse Image " as the video show

I notice that Flashing spends a lot of time in 

uboot > lib/image-sparse.c > write_sparse_image > write_sparse_chunk_raw > while loop

Is any way I can reduce it?