| Message ID | 1424956227-18258-7-git-send-email-peter.griffin@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On 02/26/2015 02:10 PM, Peter Griffin wrote: > Some additional quirks need to be enabled now we support UHS > modes. This avoids some spurious warnings like > > "Got data interrupt 0x00000002 even though no data operation was in progress" > > Testing on stih410-b2120 board achieves the following speeds > with HS200 eMMC card. > > max-frequency = 200Mhz > /dev/mmcblk0p1: > Timing buffered disk reads: 270 MB in 3.02 seconds = 89.54 MB/sec > > max-frequency = 100Mhz > root@debian-armhf:~# hdparm -t /dev/mmcblk0p1 > /dev/mmcblk0p1: > Timing buffered disk reads: 210 MB in 3.00 seconds = 70.00 MB/sec > > max-frequency = 50Mhz > root@debian-armhf:~# hdparm -t /dev/mmcblk0p1 > /dev/mmcblk0p1: > Timing buffered disk reads: 118 MB in 3.00 seconds = 39.28 MB/sec > > This is better than the 3.10 kernel which achieves 77.59 MB/sec > at 200Mhz clock (same board/soc/eMMC). > > Signed-off-by: Peter Griffin <peter.griffin@linaro.org> > Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com> > --- > drivers/mmc/host/sdhci-st.c | 5 ++++- > 1 file changed, 4 insertions(+), 1 deletion(-) > Acked-by: Maxime Coquelin <maxime.coquelin@st.com> Thanks, Maxime -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/drivers/mmc/host/sdhci-st.c b/drivers/mmc/host/sdhci-st.c index d53bc82..c6957b8 100644 --- a/drivers/mmc/host/sdhci-st.c +++ b/drivers/mmc/host/sdhci-st.c @@ -338,7 +338,10 @@ static const struct sdhci_ops sdhci_st_ops = { static const struct sdhci_pltfm_data sdhci_st_pdata = { .ops = &sdhci_st_ops, .quirks = SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC | - SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN, + SDHCI_QUIRK_CAP_CLOCK_BASE_BROKEN | + SDHCI_QUIRK_NO_HISPD_BIT, + .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN | + SDHCI_QUIRK2_STOP_WITH_TC, };