[U-Boot] [PATCH] keystone2: use SPD info to configure K2HK and K2E DDR3

[Vitaly Andrianov]

On 06/15/2015 09:47 AM, Tom Rini wrote:
> On Mon, Jun 15, 2015 at 08:32:21AM -0400, Vitaly Andrianov wrote:
>
>> This commit replaces hard-coded EMIF and PHY DDR3 configurations for
>> predefined SODIMMs to a calculated configuration. The SODIMM parameters
>> are read from SODIMM's SPD and used to calculated the configuration.
>>
>> The current commit supports calculation for DDR3 with 1600MHz and 1333MHz
>> only.
>>
>> Signed-off-by: Vitaly Andrianov <vitalya at ti.com>
>
> There's two problems here.  The first is, no floating point math in
> U-Boot.  The second is that between board/ti/ks2_evm/ddr3_spd.c that
> you're adding and drivers/ddr/fsl/ddr3_dimm_params.c and
> drivers/ddr/mvebu/ddr3_spd.c it seems like we have two and you would add
> a 3rd file for reading the standard-defined SPD data.  We need one set
> of functions in drivers/ddr/ to read the spd information and do whatever
> really common bits can be done with it and the rest in
> drivers/ddr/subdir/.
>
Tom,

Thank you. I'll rework the calculation not to use floating point math. 
Also I'll check whether I can reuse existing drivers.

Regards,
Vitaly