| Message ID | 20200327040802.30103-1-jh80.chung@samsung.com |
|---|---|
| Headers | show |
| Series | Support SDMA mode on RPI4 target - 32bit | expand |
On 27/03/2020 05:07, 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(32/64bit). > - Tested on RPI4 1GB/2GB/4GB target Whole series queued for v2020.07 Thanks a lot! Matthias > > 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 > > Changelog on V4 > - Enable SDMA in rpi4_defconfig for 64bit > > Changelog on V3 > - Rebased on latest u-boot-mmc > > 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 : enable SDHCI_SDMA config > > configs/rpi_4_32b_defconfig | 1 + > configs/rpi_4_defconfig | 1 + > drivers/mmc/sdhci.c | 13 +++++++------ > 3 files changed, 9 insertions(+), 6 deletions(-) >