Hi Jaehoon, > Subject: Re: [PATCH v2 0/3] Support SDMA mode on RPI4 target - 32bit > > 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.
This patchset could not be applied on master, would you rebase? Thanks, Peng. > > 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(-) > >>> > >