[U-Boot] am335x board i2c_probe fails from nand boot

[matti kaasinen]

"The Expected Linux image was not found. Please check your NAND
configuration" message is coming from:
common/spl/spl_nand.c
In practice this message seems coming from the fact that header of kernel
image can't be identified from offset after executing:
nand_spl_load_image(CONFIG_SYS_NAND_SPL_KERNEL_OFFS,,)
So, something gets broken in while executing nand_spl_load_image. Perhaps
CONFIG_SYS_NAND_SPL_KERNEL_OFFS value.

"Card did not respond to voltage select!" is coming from:
drivers/mmc/mmc.c

2017-01-03 15:34 GMT+02:00 matti kaasinen <matti.kaasinen at gmail.com>:

>
> 2017-01-03 14:33 GMT+02:00 matti kaasinen <matti.kaasinen at gmail.com>:
>
>> One reason why I2C configuration is wrong in nand mode could be the fact
>> that I have CONFIG_TI_I2C_BOARD_DETECT variable is undefined (because I do
>> not have that eeprom). But it looks that do_board_detect runs
>> enable_i2c0_pin_mux() that I do not run separately. On the other hand, that
>> does not explain why mmc boot works.
>
>
>
> Now I did this I2C0 configuration separately prior to running i2c_probe().
> Nand boot went further now. However, main u-boot did not start properly. I
> got following messages
> Trying to boot from NAND
> The Expected Linux image was not found. Please check your NAND
> configuration.
> Trying to start u-boot now...
>
> ........ more messages ....
> Press SPACE to abort autoboot in 2 seconds
> Card did not respond to voltage select!
> Card did not respond to voltage select!
> Card did not respond to voltage select!
> Card did not respond to voltage select!
> Card did not respond to voltage select!
> data abort
> pc : [<8ff70f94>]          lr : [<8ff701dd>]
> reloc pc : [<8081df94>]    lr : [<8081d1dd>]
> sp : 8ef28678  ip : 8ff5891d     fp : 00000003
> r10: 8ffb3af8  r9 : 8ef32ed8     r8 : 8ef41e40
> r7 : 8ff584bd  r6 : 8ef39478     r5 : 8ef39500  r4 : 47810000
> r3 : 8ff70f85  r2 : 00000d8d     r1 : 00000000  r0 : 8ef39500
> Flags: nZCv  IRQs off  FIQs on  Mode SVC_32
> Resetting CPU ...
>
> resetting ...
>
> And game over....
> So, it's not quite sure that voltage adjustments went through even though
> I2C did not complain anymore.
> There could be something wrong with nand settings, too. I need to check
> where these complaints are coming.
>
> Thanks anyway for your comments,
> Matti
>