Hi Jaehoon,
Unset the SDHCI_QUIRK_BROKEN_R1B for exynos SoC. (Tested on Exynos4 Boards.)
Signed-off-by: Jaehoon Chung jh80.chung@samsung.com
drivers/mmc/s5p_sdhci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/mmc/s5p_sdhci.c b/drivers/mmc/s5p_sdhci.c index 44353c7..3bace21 100644 --- a/drivers/mmc/s5p_sdhci.c +++ b/drivers/mmc/s5p_sdhci.c @@ -68,7 +68,7 @@ static int s5p_sdhci_core_init(struct sdhci_host *host) host->name = S5P_NAME;
host->quirks = SDHCI_QUIRK_NO_HISPD_BIT | SDHCI_QUIRK_BROKEN_VOLTAGE |
SDHCI_QUIRK_BROKEN_R1B | SDHCI_QUIRK_32BIT_DMA_ADDR |
SDHCI_QUIRK_32BIT_DMA_ADDR |MMC_VDD_165_195; host->version = sdhci_readw(host, SDHCI_HOST_VERSION);
Acked-by: Lukasz Majewski l.majewski@samsung.com Tested-by: Lukasz Majewski l.majewski@samsung.com
Test HW: Odroid U3 (Exynos4):
Odroid # ext4load mmc 0:2 0x41000000 dat_31M.img 32505856 bytes read in 1471 ms (21.1 MiB/s) Odroid # ext4write mmc 0:2 0x41000000 /dat_w55.img 0x1f00000 File System is consistent update journal finished 32505856 bytes written in 3528 ms (8.8 MiB/s)
Performance improvement is even better than with previously proposed patches.
Test HW: Odroid XU3 (Exynos5):
ODROID-XU3 # ext4load mmc 0:2 0x41000000 dat_31M.img 32505856 bytes read in 6309 ms (4.9 MiB/s) ODROID-XU3 # ext4write mmc 0:2 0x41000000 /dat_w1.img 0x1f00000 File System is consistent update journal finished 32505856 bytes written in 4884 ms (6.3 MiB/s)