Re: [baylibre-upstreaming] [PATCH 0/3] mmc: meson-gx: add ddr-access-quirk support

2019-05-14 Thread guillaume La Roque
On 5/13/19 11:15 AM, Neil Armstrong wrote: > On the Amlogic G12A SoC family, (only) the SDIO controller fails to access > the data from DDR, leading to a broken controller. > > Add the amlogic,ddr-access-quirk property so signal this particular > controller has this bug and needs a quirk to work

Re: [PATCH 0/3] mmc: meson-gx: add ddr-access-quirk support

2019-05-13 Thread Jerome Brunet
On Mon, 2019-05-13 at 11:58 +0200, Jerome Brunet wrote: > > The performance hit hasn't been evaluated, but the fix has been tested > > using a WiFi AP6398S SDIO module, and the iperf3 Bandwidth measurement gave > > 55.2 Mbits/sec over a 63 Hours long test, with the SDIO ios set as > > High-Speed >

Re: [PATCH 0/3] mmc: meson-gx: add ddr-access-quirk support

2019-05-13 Thread Jerome Brunet
On Mon, 2019-05-13 at 11:15 +0200, Neil Armstrong wrote: > On the Amlogic G12A SoC family, (only) the SDIO controller fails to access > the data from DDR, leading to a broken controller. > > Add the amlogic,ddr-access-quirk property so signal this particular > controller has this bug and needs a q

[PATCH 0/3] mmc: meson-gx: add ddr-access-quirk support

2019-05-13 Thread Neil Armstrong
On the Amlogic G12A SoC family, (only) the SDIO controller fails to access the data from DDR, leading to a broken controller. Add the amlogic,ddr-access-quirk property so signal this particular controller has this bug and needs a quirk to work properly. But each MMC controller has 1,5KiB of SRAM