Re: [RFC 0/4] Support SDMA mode on RPI4 target - 32bit

2020-01-20 Thread Jaehoon Chung
On 1/20/20 8:50 PM, Peter Robinson 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

Re: [RFC 0/4] Support SDMA mode on RPI4 target - 32bit

2020-01-20 Thread Peter Robinson
> 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. What about on other models of the rpi g

[RFC 0/4] Support SDMA mode on RPI4 target - 32bit

2020-01-20 Thread Jaehoon Chung
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.