[U-Boot] [PATCH 1/2] arm: sunxi: allwinner spi driver sun6i support

[Alexander Graf]

On 22.01.19 17:28, Alexander Graf wrote:
> 
> 
> On 22.01.19 17:17, Oskari Lemmelä wrote:
>> Hi,
>>
>> On 22.1.2019 16.54, Alexander Graf wrote:
>>>
>>> On 05.01.19 18:52, Oskari Lemmela wrote:
>>>> Minimal changes to support sun6i based Allwinner SOCs
>>>> Changes are based to SPL driver arch/arm/mach-sunxi/spl_spi_sunxi.c
>>>>
>>>> Signed-off-by: Oskari Lemmela <oskari at lemmela.net>
>>> I just tried to see if this patch gives me "sf" access on a SoPine
>>> system. Unfortunately, it seems as if the sun4i_spi driver doesn't even
>>> get probed?
>>>
>>> How did you manage to actually make use of this driver?
>>>
>>>
>>> Alex
>>
>> You need to add spi0 alias to dts and enable needed drivers to defconfig.
>> You can take look from Jagan's patch [1].
>>
>> I didn't include those changes as Maxime already commented [2]
>> that Kconfig depends/defaults should be modified first.
> 
> I don't see any relation between the dts change and the Kconfig
> dependency issues?
> 
> But thanks for the pointer, I'll give this patch a try.

Ok, so I now get the SPI controller initialized, but it seems to only
returns zeros when trying to access the SPI flash device.

In other words, it doesn't work for me :). But maybe I'm missing all the
other clk patches to actually get it working?


Alex