[PATCH v2 0/3] Support SDMA mode on RPI4 target - 32bit

[Jaehoon Chung]

On 3/18/20 10:00 AM, Peng Fan wrote:
>> Subject: Re: [PATCH v2 0/3] Support SDMA mode on RPI4 target - 32bit
>>
>> Hi
>>
>> Is there any comment or plan to apply?
> 
> Sorry, I missed this patchset. Will pick it up.

No problem. :) Thanks!

Best Regards,
Jaehoon Chung

> 
> Thanks,
> Peng.
> 
>>
>> Best Regards,
>> Jaehoon Chung
>>
>> On 2/18/20 10:25 AM, Jaehoon Chung wrote:
>>> RPI4's SDHCI controller is supported SDMA mode. (Checked on kernel
>>> side) But It doesn't use on u-boot side. Then it's too slow about read/write
>> performance.
>>> This patchset is supported SDMA mode on RPI4 target(32bit).
>>> - I didn't test on RPI4 64bit.
>>>
>>> Read/write time about 8MB file
>>> Before
>>> - Read : 1.472 seconds
>>> - Write : 4.690 seconds
>>> After
>>> - Read : 0.359 seconds
>>> - Write : 0.574 seconds
>>>
>>> This patch is based on my RFC's patches.RPI4's SDHCI controller is
>>> supported SDMA mode. (Checked on kernel side) But It doesn't use on
>> u-boot side. Then it's too slow about read/write performance.
>>> This patchset is supported SDMA mode on RPI4 target(32bit).
>>> - I didn't test on RPI4 64bit.
>>>
>>> Read/write time about 8MB file
>>> Before
>>> - Read : 1.472 seconds
>>> - Write : 4.690 seconds
>>> After
>>> - Read : 0.359 seconds
>>> - Write : 0.574 seconds
>>>
>>> This patch is based on my RFC's patches.
>>>
>>> Changelog on V2
>>> - Keep printf message instead of debug
>>> - Add Peng's Reviewed-by tag
>>>
>>> Jaehoon Chung (3):
>>>   mmc: sdhci: use phys2bus macro when dma address is accessed
>>>   mmc: sdhci: not return error when SDMA is not supported
>>>   configs: rpi_4_32b_defconfig: enable SDHCI_SDMA config
>>>
>>>  configs/rpi_4_32b_defconfig |  1 +
>>>  drivers/mmc/sdhci.c         | 13 +++++++------
>>>  2 files changed, 8 insertions(+), 6 deletions(-)
>>>
>