diff options
| author | Seungwon Jeon <tgih.jun@samsung.com> | 2013-08-30 17:13:09 +0200 |
|---|---|---|
| committer | Chris Ball <cjb@laptop.org> | 2013-09-26 03:33:53 +0200 |
| commit | 5dd63f524666d0b1d1b07da7cc993bc8fcd141a9 (patch) | |
| tree | 6c8ae66c782ccbc2f3f5832ae4c5d941cd340859 | |
| parent | mmc: dw_mmc: exynos: adjust the clock rate with speed mode (diff) | |
| download | linux-5dd63f524666d0b1d1b07da7cc993bc8fcd141a9.tar.xz linux-5dd63f524666d0b1d1b07da7cc993bc8fcd141a9.zip | |
mmc: dw_mmc: add the capability to support hs200 mode
As host controller can support eMMC's HS200 mode at 1.8V or 1.2V,
these capability will be added.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Alim Akhtar <alim.akhtar@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt | 5 | ||||
| -rw-r--r-- | drivers/mmc/host/dw_mmc.c | 6 |
2 files changed, 11 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt b/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt index cdcebea9c6f5..ae5f8e89e845 100644 --- a/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt +++ b/Documentation/devicetree/bindings/mmc/synopsis-dw-mshc.txt @@ -66,6 +66,10 @@ Optional properties: * supports-highspeed: Enables support for high speed cards (up to 50MHz) +* caps2-mmc-hs200-1_8v: Supports mmc HS200 SDR 1.8V mode + +* caps2-mmc-hs200-1_2v: Supports mmc HS200 SDR 1.2V mode + * broken-cd: as documented in mmc core bindings. * vmmc-supply: The phandle to the regulator to use for vmmc. If this is @@ -95,6 +99,7 @@ board specific portions as listed below. clock-frequency = <400000000>; num-slots = <1>; supports-highspeed; + caps2-mmc-hs200-1_8v; broken-cd; fifo-depth = <0x80>; card-detect-delay = <200>; diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 696bb468fc8e..d9f864fd0771 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -2187,6 +2187,12 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host) if (of_find_property(np, "enable-sdio-wakeup", NULL)) pdata->pm_caps |= MMC_PM_WAKE_SDIO_IRQ; + if (of_find_property(np, "caps2-mmc-hs200-1_8v", NULL)) + pdata->caps2 |= MMC_CAP2_HS200_1_8V_SDR; + + if (of_find_property(np, "caps2-mmc-hs200-1_2v", NULL)) + pdata->caps2 |= MMC_CAP2_HS200_1_2V_SDR; + return pdata; } |