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mmc: core: Add DT bindings for eMMC HS200 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: Jaehoon Chung <jh80.chung@samsung.com> Acked-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Chris Ball <chris@printf.net>
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@ -36,6 +36,8 @@ Optional properties:
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- full-pwr-cycle: full power cycle of the card is supported
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- mmc-highspeed-ddr-1_8v: eMMC high-speed DDR mode(1.8V I/O) is supported
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- mmc-highspeed-ddr-1_2v: eMMC high-speed DDR mode(1.2V I/O) is supported
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- mmc-hs200-1_8v: eMMC HS200 mode(1.8V I/O) is supported
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- mmc-hs200-1_2v: eMMC HS200 mode(1.2V I/O) is supported
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*NOTE* on CD and WP polarity. To use common for all SD/MMC host controllers line
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polarity properties, we have to fix the meaning of the "normal" and "inverted"
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@ -443,6 +443,10 @@ int mmc_of_parse(struct mmc_host *host)
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host->caps |= MMC_CAP_1_8V_DDR;
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if (of_find_property(np, "mmc-ddr-1_2v", &len))
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host->caps |= MMC_CAP_1_2V_DDR;
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if (of_find_property(np, "mmc-hs200-1_8v", &len))
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host->caps2 |= MMC_CAP2_HS200_1_8V_SDR;
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if (of_find_property(np, "mmc-hs200-1_2v", &len))
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host->caps2 |= MMC_CAP2_HS200_1_2V_SDR;
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return 0;
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