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(-) >>> >
