To use SDHCI for Samsung-SoC, Some problem is fixed.(read/write problem) See the below mmcinfo message:
1. eMMC card: Device: SAMSUNG SDHCI Manufacturer ID: 15 OEM: 100 Name: VYL00 Tran Speed: 52000000 Rd Block Len: 512 MMC version 4.0 High Capacity: Yes Capacity: 14.7 GiB Bus Width: 4-bit
2. SD-card Device: SAMSUNG SDHCI Manufacturer ID: 3 OEM: 5344 Name: SU04G Tran Speed: 25000000 Rd Block Len: 512 SD version 2.0 High Capacity: Yes Capacity: 3.7 GiB Bus Width: 4-bit
Changelog v3: - increased the timeout and udelay's value instead of adding udelay. Changelog v2: - Add the patch "mmc: sdhci: add the udelay for completed post-request" Jaehoon Chung (4): mmc: s5p_sdhci: set the SDHCI_QUIRK_BROKEN_R1B mmc: s5p_sdhci: fixed wrong function argument mmc: s5p_sdhci: add the set_mmc_clk for cmu control mmc: sdhci: increase the timeout and udelay value
arch/arm/include/asm/arch-exynos/mmc.h | 4 ++-- arch/arm/include/asm/arch-s5pc1xx/mmc.h | 4 ++-- drivers/mmc/s5p_sdhci.c | 18 +++++++++--------- drivers/mmc/sdhci.c | 7 +++++-- include/configs/trats.h | 1 + include/sdhci.h | 2 ++ 6 files changed, 21 insertions(+), 15 deletions(-)