RCar-H2: boot from SD card request

RCar-H2: boot from SD card request

[Ben Dooks]

I am trying to boot an lager board from SD, using SDHI0 channel with
the development branches from Simon.

Has anyone got this to work? I have a working 3.4-ltsi kernel that
can boot

I've tried the next, master and devel branches from
  git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git

My current diffs to the source are:

> git diff
> diff --git a/arch/arm/boot/dts/r8a7790-lager.dts b/arch/arm/boot/dts/r8a7790-lager.dts
> index 203bd08..d2b33eb 100644
> --- a/arch/arm/boot/dts/r8a7790-lager.dts
> +++ b/arch/arm/boot/dts/r8a7790-lager.dts
> @@ -16,7 +16,7 @@
>         compatible = "renesas,lager", "renesas,r8a7790";
>
>         chosen {
> -               bootargs = "console=ttySC6,115200 ignore_loglevel rw root=/dev/nfs ip=dhcp";
> +               bootargs = "console=ttySC6,38400 ignore_loglevel rw root=/dev/mmcblk0p1 rootwait";
>         };
>
>         memory@40000000 {
> @@ -29,3 +29,5 @@
>                 #size-cells = <1>;
>         };
>  };
> +
> +&sdhi0 { status = "ok"; };

-- 
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius

Re: RCar-H2: boot from SD card request

[Magnus Damm]

Hi Ben,

Unfortunately it seems to me that the upstream SDHI driver is lacking
in some aspects. This means that it won't work on r8a7790 and r8a7791
until it gets updated. We will do our best to cook up some code, would
it be possible for you guys to test on your side?

Cheers,

/ magnus

On Thu, Nov 7, 2013 at 2:55 AM, Ben Dooks <ben.dooks@codethink.co.uk> wrote:
> I am trying to boot an lager board from SD, using SDHI0 channel with
> the development branches from Simon.
>
> Has anyone got this to work? I have a working 3.4-ltsi kernel that
> can boot
>
> I've tried the next, master and devel branches from
>  git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git
>
> My current diffs to the source are:
>
>> git diff
>> diff --git a/arch/arm/boot/dts/r8a7790-lager.dts
>> b/arch/arm/boot/dts/r8a7790-lager.dts
>> index 203bd08..d2b33eb 100644
>> --- a/arch/arm/boot/dts/r8a7790-lager.dts
>> +++ b/arch/arm/boot/dts/r8a7790-lager.dts
>> @@ -16,7 +16,7 @@
>>         compatible = "renesas,lager", "renesas,r8a7790";
>>
>>         chosen {
>> -               bootargs = "console=ttySC6,115200 ignore_loglevel rw
>> root=/dev/nfs ip=dhcp";
>> +               bootargs = "console=ttySC6,38400 ignore_loglevel rw
>> root=/dev/mmcblk0p1 rootwait";
>>         };
>>
>>         memory@40000000 {
>> @@ -29,3 +29,5 @@
>>                 #size-cells = <1>;
>>         };
>>  };
>> +
>> +&sdhi0 { status = "ok"; };
>
>
> --
> Ben Dooks                               http://www.codethink.co.uk/
> Senior Engineer                         Codethink - Providing Genius
> --
> To unsubscribe from this list: send the line "unsubscribe linux-sh" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at  http://vger.kernel.org/majordomo-info.html

Re: RCar-H2: boot from SD card request

[Ben Dooks]

On 07/11/13 07:10, Magnus Damm wrote:
> Hi Ben,
>
> Unfortunately it seems to me that the upstream SDHI driver is lacking
> in some aspects. This means that it won't work on r8a7790 and r8a7791
> until it gets updated. We will do our best to cook up some code, would
> it be possible for you guys to test on your side?

Thanks, at the moment booting from SD card is much better for us than
assuming we have a network available.

I should have some time for testing in the near future.

> Cheers,
>
> / magnus
>
> On Thu, Nov 7, 2013 at 2:55 AM, Ben Dooks <ben.dooks@codethink.co.uk> wrote:
>> I am trying to boot an lager board from SD, using SDHI0 channel with
>> the development branches from Simon.
>>
>> Has anyone got this to work? I have a working 3.4-ltsi kernel that
>> can boot
>>
>> I've tried the next, master and devel branches from
>>   git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas.git
>>
>> My current diffs to the source are:
>>
>>> git diff
>>> diff --git a/arch/arm/boot/dts/r8a7790-lager.dts
>>> b/arch/arm/boot/dts/r8a7790-lager.dts
>>> index 203bd08..d2b33eb 100644
>>> --- a/arch/arm/boot/dts/r8a7790-lager.dts
>>> +++ b/arch/arm/boot/dts/r8a7790-lager.dts
>>> @@ -16,7 +16,7 @@
>>>          compatible = "renesas,lager", "renesas,r8a7790";
>>>
>>>          chosen {
>>> -               bootargs = "console=ttySC6,115200 ignore_loglevel rw
>>> root=/dev/nfs ip=dhcp";
>>> +               bootargs = "console=ttySC6,38400 ignore_loglevel rw
>>> root=/dev/mmcblk0p1 rootwait";
>>>          };
>>>
>>>          memory@40000000 {
>>> @@ -29,3 +29,5 @@
>>>                  #size-cells = <1>;
>>>          };
>>>   };
>>> +
>>> +&sdhi0 { status = "ok"; };
>>
>>
>> --
>> Ben Dooks                               http://www.codethink.co.uk/
>> Senior Engineer                         Codethink - Providing Genius
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-sh" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at  http://vger.kernel.org/majordomo-info.html


-- 
Ben Dooks				http://www.codethink.co.uk/
Senior Engineer				Codethink - Providing Genius