How can we test NAND using u-boot?

Rao Munzir

Hi,

We are working on a custom board that is exactly same as evmk2h. We are facing issues in some of the interafces i.e. ethernet and DDR3. Due to these issues u-boot is stuck at very beginning. So we are not able to test rest of the interfaces i.e. NAND,NOR in u-boot. My question is that how can we bypass all the interfaces in u-boot except NAND/NOR. So that we can test whether NAND/NOR is working fine or not. Remember we want to test in u-boot. We don't want to test it with Platform test (example project in code composer).

Regards

over 9 years ago

0 Titusrathinaraj Stalin over 9 years ago

TI__Guru** 116100 points

Dear Rao,
You can remove the DDR initialization in u-boot and load the u-boot on MSMC RAM via CCS.

Please refer to this wiki.
processors.wiki.ti.com/.../MCSDK_UG_Chapter_Exploring

Also, you can't find NAND test commands in u-boot but you can read,write and erase etc.,

0 Rao Munzir over 9 years ago in reply to Titusrathinaraj Stalin

Expert 1070 points

thanks,
would please mention in which file I can do that?

0 Shankari G over 9 years ago in reply to Rao Munzir

TI__Mastermind 43955 points

Hi Rao Munzir,

You have to comment out the "dram_init" in the following files and rebuild the u-boot then try to load u-boot as Titus mentioned.

git.ti.com/.../board.c

git.ti.com/.../board_k2hk.c

int dram_init(void)

{

init_ddr3();

gd->ram_size = get_ram_size((long *)CONFIG_SYS_SDRAM_BASE,

CONFIG_MAX_RAM_BANK_SIZE);

init_async_emif(ARRAY_SIZE(async_emif_config), async_emif_config);

init_ddr3_ecc(K2HK_DDR3A_EMIF_CTRL_BASE);

return 0;

}

0 Rao Munzir over 9 years ago in reply to Shankari G

Expert 1070 points

Thanks ,
I can see dram_init in git.ti.com/.../board_k2hk.c. But I don't see a function with this name in git.ti.com/.../board.c.
and when I comment out dram_init in board_k2hk.c u-bot i stuck at I2C:ready as shown in log below:

U-Boot 2013.01-dirty (Dec 31 2015 - 11:18:20)

I2C: ready

Please help me out here.

0 Rao Munzir over 9 years ago in reply to Rao Munzir

Expert 1070 points

Any suggestions guys? I am stuck here.

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How can we test NAND using u-boot?