forked from Minki/linux
fd7e118c80
When the WiFi support was added to the IGEP0020 board, the MMC subsystem did not provide a mechanism to define power sequence providers. So a DT hack was used to toggle the WiFi chip reset and power down pins by using fake fixed regulators whose enable GPIO was the GPIOs connected to these pins. But now the simple MMC power sequence provider can be used for this and the workaround removed. Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com> Acked-by: Enric Balletbo Serra <enric.balletbo@collabora.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
51 lines
1.5 KiB
Plaintext
51 lines
1.5 KiB
Plaintext
/*
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* Device Tree Source for IGEPv2 Rev. C (TI OMAP AM/DM37x)
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*
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* Copyright (C) 2012 Javier Martinez Canillas <javier@osg.samsung.com>
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* Copyright (C) 2012 Enric Balletbo i Serra <eballetbo@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include "omap3-igep0020-common.dtsi"
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/ {
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model = "IGEPv2 Rev. C (TI OMAP AM/DM37x)";
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compatible = "isee,omap3-igep0020", "ti,omap36xx", "ti,omap3";
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vmmcsdio_fixed: fixedregulator-mmcsdio {
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compatible = "regulator-fixed";
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regulator-name = "vmmcsdio_fixed";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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};
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mmc2_pwrseq: mmc2_pwrseq {
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compatible = "mmc-pwrseq-simple";
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reset-gpios = <&gpio5 11 GPIO_ACTIVE_LOW>, /* gpio_139 - RESET_N_W */
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<&gpio5 10 GPIO_ACTIVE_LOW>; /* gpio_138 - WIFI_PDN */
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};
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};
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&omap3_pmx_core {
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lbee1usjyc_pins: pinmux_lbee1usjyc_pins {
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pinctrl-single,pins = <
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OMAP3_CORE1_IOPAD(0x2166, PIN_OUTPUT | MUX_MODE4) /* sdmmc2_dat5.gpio_137 - RESET_N_W */
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OMAP3_CORE1_IOPAD(0x2168, PIN_OUTPUT | MUX_MODE4) /* sdmmc2_dat6.gpio_138 - WIFI_PDN */
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OMAP3_CORE1_IOPAD(0x216a, PIN_OUTPUT | MUX_MODE4) /* sdmmc2_dat7.gpio_139 - RST_N_B */
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>;
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};
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};
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/* On board Wifi module */
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&mmc2 {
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pinctrl-names = "default";
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pinctrl-0 = <&mmc2_pins &lbee1usjyc_pins>;
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vmmc-supply = <&vmmcsdio_fixed>;
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mmc-pwrseq = <&mmc2_pwrseq>;
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bus-width = <4>;
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non-removable;
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};
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