forked from Minki/linux
11469e0bb1
pbias register controls internal power supply to sd card i/o pads in most OMAPs (OMAP2-5, DRA7). Control bits for selecting voltage level and enabling/disabling are in the same PBIAS register. Signed-off-by: Balaji T K <balajitk@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Mark Brown <broonie@linaro.org> Tested-by: Florian Vaussard <florian.vaussard@epfl.ch> Tested-by: Stefan Roese <sr@denx.de> Signed-off-by: Chris Ball <chris@printf.net>
28 lines
865 B
Plaintext
28 lines
865 B
Plaintext
PBIAS internal regulator for SD card dual voltage i/o pads on OMAP SoCs.
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Required properties:
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- compatible:
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- "ti,pbias-omap" for OMAP2, OMAP3, OMAP4, OMAP5, DRA7.
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- reg: pbias register offset from syscon base and size of pbias register.
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- syscon : phandle of the system control module
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- regulator-name : should be
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pbias_mmc_omap2430 for OMAP2430, OMAP3 SoCs
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pbias_sim_omap3 for OMAP3 SoCs
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pbias_mmc_omap4 for OMAP4 SoCs
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pbias_mmc_omap5 for OMAP5 and DRA7 SoC
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Optional properties:
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- Any optional property defined in bindings/regulator/regulator.txt
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Example:
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pbias_regulator: pbias_regulator {
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compatible = "ti,pbias-omap";
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reg = <0 0x4>;
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syscon = <&omap5_padconf_global>;
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pbias_mmc_reg: pbias_mmc_omap5 {
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regulator-name = "pbias_mmc_omap5";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <3000000>;
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};
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