Compiler/TDA2EG-17: TDA2Ex-17 qspi flash

Hi,

Could you please make sure that your SD boot is primary and QSPI is secondary?
Also ensure that the images in the SD card are release images that are known to work.
QSPI formatting should not impact SD boot.

Best Regards,
Keerthy

Hi,

Yes, I have confirmed, I modified the startup sequence to the following mode:

The system can be started normally. The following new problems have occurred:

1、I execute the following command in linux system

$ dd if=/dev/urandom of=test.bin bs=64 count=1024
$ dd if=/dev/mtd0 of=12.bin bs=64 count=1024
$ diff test.bin 12.bin

The data of the two times is the same, indicating that the data has been successfully written to the spi flash

2、I restart the system, enter the uboot command line, and execute the following command:

=> fatload mmc 0 0x82000000 MLO

185461 bytes read in 10 ms (17.7 MiB/s)

=> md 0x82000000 0x10

82000000: 00000040 0000000c 00000000 00000000 @...............
82000010: 00000000 45534843 4e495454 00005347 ....CHSETTINGS..
82000020: ffffffff ffffffff ffffffff ffffffff ................
82000030: ffffffff ffffffff ffffffff ffffffff ................

=> sf probe 0

SF: Detected gd25s513mdy2g with page size 256 Bytes, erase size 64 KiB, total 64 MiB

=> sf erase 0 0x30000

SF: 196608 bytes @ 0x0 Erased: OK

=> sf write 0x82000000 0x0 0x30000

device 0 offset 0x0, size 0x30000
SF: 196608 bytes @ 0x0 Written: OK

=> sf read 0x82000000 0x0 0x30000

device 0 offset 0x0, size 0x30000

SF: 196608 bytes @ 0x0 Read: OK

=> md 0x82000000 0x10

82000000: 00000000 00000000 00000000 00000000 ................
82000010: 00000000 00000000 00000000 00000000 ................
82000020: 00000000 00000000 00000000 00000000 ................
82000030: 00000000 00000000 00000000 00000000 ................

From the last command, we can know that what is read out is empty.Did not write successfully, but the process of writing shows success

How can I find the cause?

Thanks！

Hi,

I now change to the v03.07 sdk package and use qspi4 as the boot device to burn images of MLO, kernel dtb, kernel and other cores. What are the special requirements for the files? What is the location of the image in qspi? How to set the uboot startup command?

Thanks！

Hi,

Thanks for your reply.How to set the bootargs parameters of uboot from qspi flash?

Hi,

I will check with the U-boot expert & let you know.

Thanks

Gaviraju

Hi,

Thanks.

But this is not a big reference for me. My board only has qspi flash, so I need to set bootargs, and I need to set which kernel and dtb mirrors are read from. The root file system I use is in ubifs format, so I need to set boot parameters.

So can you tell me the startup parameter configuration for booting from qspi flash?

Hi,

I could not find references for TDA2.

There is one for AM654x: https://elixir.bootlin.com/u-boot/latest/source/include/configs/am65x_evm.h#L120

Similar thing needs to be tried for TDA2. You will have to experiment a bit.

There is some older link: https://processors.wiki.ti.com/index.php/UBIFS_Support

That gives an over all idea but might not be relevant now.

Best Regards,
Keerthy