With a 128GB Hardkernel eMMC card my Odroid C2 boots up to 60MHz only (tons of CRC errors otherwise). I made some tests and with changed clock phase configuration it runs rock-solid with 200 MHz. Changing the clock phase configuration in general most likely wouldn't be a good idea as this might break other combinations of MMC device and speed. Therefore add basic tuning. So far it changes the rx clock phase only as default core and tx clock phase work fine. Heiner Kallweit (2): mmc: meson-gx: introduce struct meson_tuning_params mmc: meson-gx: add basic tuning for rx clock phase drivers/mmc/host/meson-gx-mmc.c | 66 ++++++++++++++++++++++++++++++++++++++++- 1 file changed, 65 insertions(+), 1 deletion(-) -- 2.12.1 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
