uboot mtest on am335x EVM

Gangadhar Gangu

Expert 1865 points

Hi All,

I enabled mtest in uboot by defining

CONFIG_CMD_MEMTEST,

CONFIG_SYS_ALT_MEMTEST,

CONFIG_SYS_MEMTEST_START = 0x80200000,

CONFIG_SYS_MEMTEST_END = 0x87FFFFFF

Uboot hangs when i execute, mtest 0x80200000 0x80200002.

Please tell me what I'm missing, also tell me how to do DDR(for entire 256MB) test for EVM. Finally I want to try on my custom board. DDR base addr: 0x80000000

Regards,

Gangadhar

over 11 years ago

0 Miroslav Kiradzhiyski XID over 11 years ago

TI__Mastermind 25235 points

Hi Gangadhar,

As far as I know, you are using SDK v7. I looked this up and it seems like the mtest command was removed between the version of U-Boot in SDK v6 and the version in SDK v7. If you wish to enable it in the U-Boot from SDK v7, you should look up the patches that remove it and perhaps revert them.

My suggestion is to first use the older U-Boot which has "mtest" support and test your memory with it. I have verified that "mtest" from the older U-Boot works flawlessly on the AM335x GP EVM so there is nothing wrong with it.

Best regards,
Miroslav