diff options
| author | Seungwon Jeon <tgih.jun@samsung.com> | 2014-03-14 21:12:13 +0900 |
|---|---|---|
| committer | Chris Ball <chris@printf.net> | 2014-04-20 16:59:41 -0400 |
| commit | 6dad6c9594577969f6d74ca1b344e00314bb3b64 (patch) | |
| tree | 8978ad284412ac7082255c6cedaef3d194f7bde5 /drivers/mmc/host | |
| parent | 79f7ae7c45a6ccf04e2908337461dee615f6afb0 (diff) | |
mmc: mmci: clarify DDR timing mode between SD-UHS and eMMC
Added MMC_DDR52 as eMMC's DDR mode distinguished from SD-UHS.
CC: Russell King <linux@arm.linux.org.uk>
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>
Diffstat (limited to 'drivers/mmc/host')
| -rw-r--r-- | drivers/mmc/host/mmci.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 771c60ab4a32..7e853932393b 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -299,7 +299,8 @@ static void mmci_set_clkreg(struct mmci_host *host, unsigned int desired) if (host->mmc->ios.bus_width == MMC_BUS_WIDTH_8) clk |= MCI_ST_8BIT_BUS; - if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50) + if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50 || + host->mmc->ios.timing == MMC_TIMING_MMC_DDR52) clk |= MCI_ST_UX500_NEG_EDGE; mmci_write_clkreg(host, clk); @@ -784,7 +785,8 @@ static void mmci_start_data(struct mmci_host *host, struct mmc_data *data) mmci_write_clkreg(host, clk); } - if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50) + if (host->mmc->ios.timing == MMC_TIMING_UHS_DDR50 || + host->mmc->ios.timing == MMC_TIMING_MMC_DDR52) datactrl |= MCI_ST_DPSM_DDRMODE; /* |