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

[Peng Fan]

> 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.

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(-)
> >