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| author | Ulf Hansson <ulf.hansson@linaro.org> | 2014-02-14 13:27:08 +0100 |
|---|---|---|
| committer | Chris Ball <chris@printf.net> | 2014-02-22 13:51:10 -0500 |
| commit | c0baf8485928b2db8a9530672d522d758746a2b6 (patch) | |
| tree | c0bf4982b52ffca8ae77f9a3590f666590438873 /Documentation | |
| parent | b66bd0e4d00c89102851c1bc9a0f738a4ad9ca2d (diff) | |
| download | linux-stable-c0baf8485928b2db8a9530672d522d758746a2b6.tar.gz linux-stable-c0baf8485928b2db8a9530672d522d758746a2b6.tar.bz2 linux-stable-c0baf8485928b2db8a9530672d522d758746a2b6.zip | |
mmc: core: Add DT bindings for eMMC high-speed DDR 1.8/1.2V
Provide the option to configure these speed modes per host, for those
host driver's that can't distinguish this in runtime.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <chris@printf.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/mmc/mmc.txt | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mmc/mmc.txt b/Documentation/devicetree/bindings/mmc/mmc.txt index bd2ce67dbb9e..519d9523a413 100644 --- a/Documentation/devicetree/bindings/mmc/mmc.txt +++ b/Documentation/devicetree/bindings/mmc/mmc.txt @@ -34,6 +34,8 @@ Optional properties: - cap-power-off-card: powering off the card is safe - cap-sdio-irq: enable SDIO IRQ signalling on this interface - full-pwr-cycle: full power cycle of the card is supported +- mmc-highspeed-ddr-1_8v: eMMC high-speed DDR mode(1.8V I/O) is supported +- mmc-highspeed-ddr-1_2v: eMMC high-speed DDR mode(1.2V I/O) is supported *NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line polarity properties, we have to fix the meaning of the "normal" and "inverted" |