[v2,09/14] rockchip: rk3399: Add 4GB LPDDR3-1866 DMC settings

220 diff mbox series

Add sdram dtsi file for 4GB LPDDR3-1866 DMC settings by reverse
engineered from the rk3399_ddr_933Mhz_v1.14.bin file.

Full credits to 'Liviu Dudau' who is the real author for this change.

Signed-off-by: Liviu Dudau <liviu@dudau.co.uk>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
 .../arm/dts/rk3399-sdram-lpddr3-4GB-1866.dtsi | 1535 +++++++++++++++++
 1 file changed, 1535 insertions(+)
 create mode 100644 arch/arm/dts/rk3399-sdram-lpddr3-4GB-1866.dtsi

Hi Jagan,


On 04/16/2019 06:56 PM, Jagan Teki wrote:
> Add sdram dtsi file for 4GB LPDDR3-1866 DMC settings by reverse
> engineered from the rk3399_ddr_933Mhz_v1.14.bin file.
>
> Full credits to 'Liviu Dudau' who is the real author for this change.
>
> Signed-off-by: Liviu Dudau <liviu@dudau.co.uk>
> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
> ---
>  .../arm/dts/rk3399-sdram-lpddr3-4GB-1866.dtsi | 1535 +++++++++++++++++

Could you use rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi directly?
I think it should able to work.

Thanks,
- Kever
>  1 file changed, 1535 insertions(+)
>  create mode 100644 arch/arm/dts/rk3399-sdram-lpddr3-4GB-1866.dtsi
>
> diff --git a/arch/arm/dts/rk3399-sdram-lpddr3-4GB-1866.dtsi b/arch/arm/dts/rk3399-sdram-lpddr3-4GB-1866.dtsi
> new file mode 100644
> index 0000000000..1ee08bb0a1
> --- /dev/null
> +++ b/arch/arm/dts/rk3399-sdram-lpddr3-4GB-1866.dtsi
> @@ -0,0 +1,1535 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * (C) 2018 Liviu Dudau <liviu@dudau.co.uk>
> + */
> +
> +&dmc {
> +        rockchip,sdram-params = <
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> +};

On Wed, Apr 17, 2019 at 1:10 PM Kever Yang <kever.yang@rock-chips.com> wrote:
>
> Hi Jagan,
>
>
> On 04/16/2019 06:56 PM, Jagan Teki wrote:
> > Add sdram dtsi file for 4GB LPDDR3-1866 DMC settings by reverse
> > engineered from the rk3399_ddr_933Mhz_v1.14.bin file.
> >
> > Full credits to 'Liviu Dudau' who is the real author for this change.
> >
> > Signed-off-by: Liviu Dudau <liviu@dudau.co.uk>
> > Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
> > ---
> >  .../arm/dts/rk3399-sdram-lpddr3-4GB-1866.dtsi | 1535 +++++++++++++++++
>
> Could you use rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi directly?
> I think it should able to work.

I supposed to take the same, but thought that it would be some samsung
specific setting. but seems like it is nearly same and it worked. will
update to use this. thanks!

Hi Jagan,


On 04/17/2019 07:11 PM, Jagan Teki wrote:
> On Wed, Apr 17, 2019 at 1:10 PM Kever Yang <kever.yang@rock-chips.com> wrote:
>> Hi Jagan,
>>
>>
>> On 04/16/2019 06:56 PM, Jagan Teki wrote:
>>> Add sdram dtsi file for 4GB LPDDR3-1866 DMC settings by reverse
>>> engineered from the rk3399_ddr_933Mhz_v1.14.bin file.
>>>
>>> Full credits to 'Liviu Dudau' who is the real author for this change.
>>>
>>> Signed-off-by: Liviu Dudau <liviu@dudau.co.uk>
>>> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
>>> ---
>>>  .../arm/dts/rk3399-sdram-lpddr3-4GB-1866.dtsi | 1535 +++++++++++++++++
>> Could you use rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi directly?
>> I think it should able to work.
> I supposed to take the same, but thought that it would be some samsung
> specific setting. but seems like it is nearly same and it worked. will
> update to use this. thanks!

I have check with rockchip dram driver owner, this setting is more generic
while the -samsung- dtsi is more for dedicate chromebook.
So I think we can merge this patch for other boards who using Rockchip
reference design.

Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

Thanks,
- Kever

> On 18.04.2019, at 04:57, Kever Yang <kever.yang@rock-chips.com> wrote:
> 
> Hi Jagan,
> 
> 
> On 04/17/2019 07:11 PM, Jagan Teki wrote:
>> On Wed, Apr 17, 2019 at 1:10 PM Kever Yang <kever.yang@rock-chips.com> wrote:
>>> Hi Jagan,
>>> 
>>> 
>>> On 04/16/2019 06:56 PM, Jagan Teki wrote:
>>>> Add sdram dtsi file for 4GB LPDDR3-1866 DMC settings by reverse
>>>> engineered from the rk3399_ddr_933Mhz_v1.14.bin file.
>>>> 
>>>> Full credits to 'Liviu Dudau' who is the real author for this change.
>>>> 
>>>> Signed-off-by: Liviu Dudau <liviu@dudau.co.uk>
>>>> Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
>>>> ---
>>>> .../arm/dts/rk3399-sdram-lpddr3-4GB-1866.dtsi | 1535 +++++++++++++++++
>>> Could you use rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi directly?
>>> I think it should able to work.
>> I supposed to take the same, but thought that it would be some samsung
>> specific setting. but seems like it is nearly same and it worked. will
>> update to use this. thanks!
> 
> I have check with rockchip dram driver owner, this setting is more generic
> while the -samsung- dtsi is more for dedicate chromebook.
> So I think we can merge this patch for other boards who using Rockchip
> reference design.
> 
> Reviewed-by: Kever Yang <kever.yang@rock-chips.com>

Reviewed-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>