i.MX6S/GPMI-NAND issue on 3.5.4

i.MX6S/GPMI-NAND issue on 3.5.4

[Vikram Narayanan]

Hello,

I'm facing some issue with GPMI-NAND driver on i.MX6 solo.
I've a TOSHIBA 4KiB page NAND connected to the GPMI.
(4KiB + 128 bytes OOB)

I tested it using the following,

1) U-boot v2012.04
2) Freescale's U-boot for i.MX6
3) Freescale's Kernel 3.0.15
	Result: 0x98 0xAC 0x90 0x26 (Correct)

4) Linux v3.5.4 stable
	Result: 0x98 0xA8 0x90 0x20 (Incorrect)

When I issue a READID command, 1, 2 & 3 gives me correct results, 
whereas the 3.5.4 version gives me some different result.

Any help would be very much appreciated.

Regards,
Vikram

Re: i.MX6S/GPMI-NAND issue on 3.5.4

[Huang Shijie]

于 2012年09月22日 02:29, Vikram Narayanan 写道:
> Hello,
>
> I'm facing some issue with GPMI-NAND driver on i.MX6 solo.
Does the MX6Q solo support the NAND?
I have the solo board in my hand. But it can not support the NAND.

You make the board yourself?
If so, please check the pinmux for solo.

thanks
Huang Shijie



> I've a TOSHIBA 4KiB page NAND connected to the GPMI.
> (4KiB + 128 bytes OOB)
>
> I tested it using the following,
>
> 1) U-boot v2012.04
> 2) Freescale's U-boot for i.MX6
> 3) Freescale's Kernel 3.0.15
> Result: 0x98 0xAC 0x90 0x26 (Correct)
>
> 4) Linux v3.5.4 stable
> Result: 0x98 0xA8 0x90 0x20 (Incorrect)
>
> When I issue a READID command, 1, 2 & 3 gives me correct results,
> whereas the 3.5.4 version gives me some different result.
>
> Any help would be very much appreciated.
>
> Regards,
> Vikram
>

Re: i.MX6S/GPMI-NAND issue on 3.5.4

[Fabio Estevam]

Hi Vikram,

On Fri, Sep 21, 2012 at 3:29 PM, Vikram Narayanan <vikram186@gmail.com> wrote:
> Hello,
>
> I'm facing some issue with GPMI-NAND driver on i.MX6 solo.
> I've a TOSHIBA 4KiB page NAND connected to the GPMI.
> (4KiB + 128 bytes OOB)

Can you please post your mx6sl dts patches? This would help us to
identify the problem.

Regards,

Fabio Estevam

Re: i.MX6S/GPMI-NAND issue on 3.5.4

[Vikram Narayanan]

On 10/8/2012 8:21 AM, Huang Shijie wrote:
> 于 2012年09月22日 02:29, Vikram Narayanan 写道:
>> Hello,
>>
>> I'm facing some issue with GPMI-NAND driver on i.MX6 solo.
> Does the MX6Q solo support the NAND?

Yes. i.Mx6Solo supports NAND.

> I have the solo board in my hand. But it can not support the NAND.
> 
> You make the board yourself?
> If so, please check the pinmux for solo.

Yeah I figured out that pinctrl driver was the problem.Anyway thanks for
the pointing it out.

Regards,
Vikram