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mmc: rtsx: clarify DDR timing mode between SD-UHS and eMMC 

Added MMC_DDR52 as eMMC's DDR mode is distinguished from SD-UHS.

CC: Wei WANG <wei_wang@realsil.com.cn>
CC: Samuel Ortiz <sameo@linux.intel.com>
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
This commit is contained in:
Seungwon Jeon 2014-03-14 21:12:38 +09:00 committed by Chris Ball
parent 4039ff4741
commit 1a0ae377bf
1 changed files with 2 additions and 0 deletions
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2
drivers/mmc/host/rtsx_pci_sdmmc.c
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@ -1075,6 +1075,7 @@ static int sd_set_timing(struct realtek_pci_sdmmc *host, unsigned char timing)
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CLK_CTL, CLK_LOW_FREQ, 0); rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, CLK_CTL, CLK_LOW_FREQ, 0);
break; break;
case MMC_TIMING_MMC_DDR52:
case MMC_TIMING_UHS_DDR50: case MMC_TIMING_UHS_DDR50:
rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG1, rtsx_pci_add_cmd(pcr, WRITE_REG_CMD, SD_CFG1,
0x0C | SD_ASYNC_FIFO_NOT_RST, 0x0C | SD_ASYNC_FIFO_NOT_RST,
@ -1155,6 +1156,7 @@ static void sdmmc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
host->vpclk = true; host->vpclk = true;
host->double_clk = false; host->double_clk = false;
break; break;
case MMC_TIMING_MMC_DDR52:
case MMC_TIMING_UHS_DDR50: case MMC_TIMING_UHS_DDR50:
case MMC_TIMING_UHS_SDR25: case MMC_TIMING_UHS_SDR25:
host->ssc_depth = RTSX_SSC_DEPTH_1M; host->ssc_depth = RTSX_SSC_DEPTH_1M;