mdt_debug write

[Stephen Graf]

Thank you for the update Andre.

The flashcp worked.  I rebooted without an SD card and the new u-boot 
started properly.

Now as to making a patch file, I will give it a try.  Keep in mind that 
when I started my working career the concept of patching was to shuffle 
a deck of IBM 80 column punched cards.

Console output:

root at orangepizero3:~# flashcp -v 
/home/sysadmin/u-boot-sunxi-with-spl.bin_with_792_clk /dev/mtd0
Erasing blocks: 206/206 (100%)
Writing data: 822k/822k (100%)
Verifying data: 822k/822k (100%)
root at orangepizero3:~#




On 2023-11-29 3:57 p.m., Andre Przywara wrote:
> Hi Stephen,
> 
> On 28/11/2023 20:07, Stephen Graf wrote:
>> Below is the consol log from trying to use mtd_debug write. It 
>> returned immediately with a strange success message.
>>
>> root at orangepizero3:~# mtd_debug write /dev/mtd0 0 0xf0000 
>> /home/sysadmin/u-boot-sunxi-with-spl.bin
>> file_to_flash: fread, size 0xf0000, n 0xf0000
>> fread(): Success
> 
> interesting, I was under the impression that "mtd_debug write" would be 
> the way to write to flash. In hindsight, the "debug" in that name should 
> have probably put me off. Anyway, "cat" is probably not a good choice, 
> "dd" is better, but it looks like "flashcp" (also part of mtdutils) is 
> the go-to tool, since it does the required erasing automatically and 
> also reportedly does some error detection. Can you please test this?
> # flashcp u-boot-sunxi-with-spl.bin /dev/mtd0
> I would test this on my end ASAP as well.
> 
> Do you feel like sending a patch to the U-Boot documentation to get this 
> changed then?
> 
> Thanks,
> Andre
>