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https://github.com/brain-hackers/u-boot-brain
synced 2024-07-22 02:49:44 +09:00
c49d0ac38a
An ADATA 16GB Industrial MLC card has so much capacitance on the Vcc pin that the usual toggling of regulator to power the card off and on is insufficient. When the card is calibrated into UHS SDR104 mode, it will remain in that mode across the power cycle and subsequent attempt to communicate with the card will fail. The test with this card is to insert it into an SDHI slot and perform "mmc dev 0 ; mmc dev 0", where the second "mmc dev 0" will fail. Fix this problem by increasing the off-on delay from 0 to 20 mS. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
189 lines
3.8 KiB
Plaintext
189 lines
3.8 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/*
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* Device Tree Source extras for U-Boot for the Ebisu board
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*
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* Copyright (C) 2018 Marek Vasut <marek.vasut@gmail.com>
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*/
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#include "r8a77990-ebisu.dts"
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#include "r8a77990-u-boot.dtsi"
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/ {
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reg_1p8v: regulator0 {
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compatible = "regulator-fixed";
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regulator-name = "fixed-1.8V";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-boot-on;
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regulator-always-on;
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};
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reg_3p3v: regulator1 {
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compatible = "regulator-fixed";
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regulator-name = "fixed-3.3V";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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regulator-always-on;
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};
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vcc_sdhi0: regulator-vcc-sdhi0 {
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compatible = "regulator-fixed";
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regulator-name = "SDHI0 Vcc";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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gpio = <&gpio5 17 GPIO_ACTIVE_HIGH>;
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enable-active-high;
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u-boot,off-on-delay-us = <20000>;
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};
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vccq_sdhi0: regulator-vccq-sdhi0 {
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compatible = "regulator-gpio";
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regulator-name = "SDHI0 VccQ";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <3300000>;
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gpios = <&gpio5 18 GPIO_ACTIVE_HIGH>;
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gpios-states = <1>;
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states = <3300000 1
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1800000 0>;
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};
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vcc_sdhi1: regulator-vcc-sdhi1 {
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compatible = "regulator-fixed";
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regulator-name = "SDHI1 Vcc";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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gpio = <&gpio0 4 GPIO_ACTIVE_HIGH>;
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enable-active-high;
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u-boot,off-on-delay-us = <20000>;
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};
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vccq_sdhi1: regulator-vccq-sdhi1 {
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compatible = "regulator-gpio";
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regulator-name = "SDHI1 VccQ";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <3300000>;
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gpios = <&gpio3 15 GPIO_ACTIVE_HIGH>;
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gpios-states = <1>;
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states = <3300000 1
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1800000 0>;
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};
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};
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&pfc {
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pinctrl-0 = <&scif_clk_pins>;
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pinctrl-names = "default";
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scif2_pins: scif2 {
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groups = "scif2_data_a";
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function = "scif2";
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};
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scif_clk_pins: scif_clk {
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groups = "scif_clk_a";
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function = "scif_clk";
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};
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sdhi0_pins: sd0 {
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groups = "sdhi0_data4", "sdhi0_ctrl";
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function = "sdhi0";
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power-source = <3300>;
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};
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sdhi0_pins_uhs: sd0_uhs {
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groups = "sdhi0_data4", "sdhi0_ctrl";
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function = "sdhi0";
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power-source = <1800>;
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};
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sdhi1_pins: sd1 {
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groups = "sdhi1_data4", "sdhi1_ctrl";
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function = "sdhi1";
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power-source = <3300>;
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};
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sdhi1_pins_uhs: sd1_uhs {
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groups = "sdhi1_data4", "sdhi1_ctrl";
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function = "sdhi1";
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power-source = <1800>;
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};
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sdhi3_pins: sd2 {
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groups = "sdhi3_data8", "sdhi3_ctrl", "sdhi3_ds";
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function = "sdhi3";
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power-source = <1800>;
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};
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sdhi3_pins_uhs: sd2_uhs {
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groups = "sdhi3_data8", "sdhi3_ctrl", "sdhi3_ds";
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function = "sdhi3";
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power-source = <1800>;
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};
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};
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&scif2 {
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pinctrl-0 = <&scif2_pins>;
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pinctrl-names = "default";
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status = "okay";
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};
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&sdhi0 {
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/* full size SD */
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pinctrl-0 = <&sdhi0_pins>;
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pinctrl-1 = <&sdhi0_pins_uhs>;
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pinctrl-names = "default", "state_uhs";
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vmmc-supply = <&vcc_sdhi0>;
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vqmmc-supply = <&vccq_sdhi0>;
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cd-gpios = <&gpio3 12 GPIO_ACTIVE_LOW>;
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wp-gpios = <&gpio3 13 GPIO_ACTIVE_HIGH>;
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bus-width = <4>;
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sd-uhs-sdr12;
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sd-uhs-sdr25;
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sd-uhs-sdr50;
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sd-uhs-sdr104;
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status = "okay";
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max-frequency = <208000000>;
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};
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&sdhi1 {
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/* microSD */
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pinctrl-0 = <&sdhi1_pins>;
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pinctrl-1 = <&sdhi1_pins_uhs>;
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pinctrl-names = "default", "state_uhs";
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vmmc-supply = <&vcc_sdhi1>;
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vqmmc-supply = <&vccq_sdhi1>;
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cd-gpios = <&gpio3 14 GPIO_ACTIVE_LOW>;
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bus-width = <4>;
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sd-uhs-sdr12;
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sd-uhs-sdr25;
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sd-uhs-sdr50;
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sd-uhs-sdr104;
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status = "okay";
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max-frequency = <208000000>;
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};
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&sdhi3 {
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/* used for on-board 8bit eMMC */
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pinctrl-0 = <&sdhi3_pins>;
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pinctrl-1 = <&sdhi3_pins_uhs>;
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pinctrl-names = "default", "state_uhs";
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vmmc-supply = <®_3p3v>;
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vqmmc-supply = <®_1p8v>;
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bus-width = <8>;
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mmc-hs200-1_8v;
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mmc-hs400-1_8v;
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non-removable;
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status = "okay";
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};
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