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7ecc70a98c
The DAC found on the last chip select requires a word length of 12 bits, which is not supported by the SSP controller of the iMX28. Use bitbanging for that bus to support such a length. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
187 lines
3.9 KiB
Plaintext
187 lines
3.9 KiB
Plaintext
/*
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* Copyright 2012 Free Electrons
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*
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* The code contained herein is licensed under the GNU General Public
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* License. You may obtain a copy of the GNU General Public License
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* Version 2 or later at the following locations:
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*
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* http://www.opensource.org/licenses/gpl-license.html
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* http://www.gnu.org/copyleft/gpl.html
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*/
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/*
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* The CFA-10049 is an expansion board for the CFA-10036 module, thus we
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* need to include the CFA-10036 DTS.
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*/
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/include/ "imx28-cfa10036.dts"
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/ {
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model = "Crystalfontz CFA-10049 Board";
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compatible = "crystalfontz,cfa10049", "crystalfontz,cfa10036", "fsl,imx28";
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apb@80000000 {
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apbh@80000000 {
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pinctrl@80018000 {
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pinctrl-names = "default", "default";
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pinctrl-1 = <&hog_pins_cfa10049
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&hog_pins_cfa10049_pullup>;
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hog_pins_cfa10049: hog-10049@0 {
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reg = <0>;
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fsl,pinmux-ids = <
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0x0073 /* MX28_PAD_GPMI_D7__GPIO_0_7 */
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0x1163 /* MX28_PAD_LCD_D22__GPIO_1_22 */
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0x1173 /* MX28_PAD_LCD_D22__GPIO_1_23 */
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0x2153 /* MX28_PAD_SSP2_D5__GPIO_2_21 */
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>;
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fsl,drive-strength = <0>;
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fsl,voltage = <1>;
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fsl,pull-up = <0>;
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};
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hog_pins_cfa10049_pullup: hog-10049-pullup@0 {
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reg = <0>;
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fsl,pinmux-ids = <
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0x2133 /* MX28_PAD_SSP2_D3__GPIO_2_19 */
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>;
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fsl,drive-strength = <0>;
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fsl,voltage = <1>;
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fsl,pull-up = <1>;
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};
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spi3_pins_cfa10049: spi3-cfa10049@0 {
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reg = <0>;
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fsl,pinmux-ids = <
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0x0183 /* MX28_PAD_GPMI_RDN__GPIO_0_24 */
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0x01c3 /* MX28_PAD_GPMI_RESETN__GPIO_0_28 */
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0x0113 /* MX28_PAD_GPMI_CE1N__GPIO_0_17 */
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0x01a3 /* MX28_PAD_GPMI_ALE__GPIO_0_26 */
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0x01b3 /* MX28_PAD_GPMI_CLE__GPIO_0_27 */
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>;
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fsl,drive-strength = <1>;
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fsl,voltage = <1>;
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fsl,pull-up = <1>;
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};
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};
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};
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apbx@80040000 {
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i2c1: i2c@8005a000 {
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pinctrl-names = "default";
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pinctrl-0 = <&i2c1_pins_a>;
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status = "okay";
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};
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i2cmux {
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compatible = "i2c-mux-gpio";
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#address-cells = <1>;
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#size-cells = <0>;
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mux-gpios = <&gpio1 22 0 &gpio1 23 0>;
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i2c-parent = <&i2c1>;
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i2c@0 {
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reg = <0>;
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};
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i2c@1 {
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reg = <1>;
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};
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i2c@2 {
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reg = <2>;
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};
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i2c@3 {
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reg = <3>;
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#address-cells = <1>;
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#size-cells = <0>;
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pca9555: pca9555@20 {
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compatible = "nxp,pca9555";
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interrupt-parent = <&gpio2>;
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interrupts = <19 0x2>;
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gpio-controller;
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#gpio-cells = <2>;
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interrupt-controller;
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#interrupt-cells = <2>;
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reg = <0x20>;
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};
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};
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};
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usbphy1: usbphy@8007e000 {
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status = "okay";
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};
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};
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};
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ahb@80080000 {
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usb1: usb@80090000 {
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vbus-supply = <®_usb1_vbus>;
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pinctrl-0 = <&usbphy1_pins_a>;
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pinctrl-names = "default";
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status = "okay";
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};
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};
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regulators {
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compatible = "simple-bus";
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reg_usb1_vbus: usb1_vbus {
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compatible = "regulator-fixed";
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regulator-name = "usb1_vbus";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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gpio = <&gpio0 7 1>;
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};
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};
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ahb@80080000 {
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mac0: ethernet@800f0000 {
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phy-mode = "rmii";
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pinctrl-names = "default";
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pinctrl-0 = <&mac0_pins_a>;
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phy-reset-gpios = <&gpio2 21 0>;
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phy-reset-duration = <100>;
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status = "okay";
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};
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};
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spi3 {
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compatible = "spi-gpio";
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pinctrl-names = "default";
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pinctrl-0 = <&spi3_pins_cfa10049>;
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status = "okay";
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gpio-sck = <&gpio0 24 0>;
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gpio-mosi = <&gpio0 28 0>;
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cs-gpios = <&gpio0 17 0 &gpio0 26 0 &gpio0 27 0>;
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num-chipselects = <3>;
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#address-cells = <1>;
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#size-cells = <0>;
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gpio5: gpio5@0 {
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compatible = "fairchild,74hc595";
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gpio-controller;
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#gpio-cells = <2>;
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reg = <0>;
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registers-number = <2>;
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spi-max-frequency = <100000>;
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};
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gpio6: gpio6@1 {
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compatible = "fairchild,74hc595";
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gpio-controller;
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#gpio-cells = <2>;
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reg = <1>;
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registers-number = <4>;
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spi-max-frequency = <100000>;
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};
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dac0: dh2228@2 {
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compatible = "rohm,dh2228fv";
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reg = <2>;
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spi-max-frequency = <100000>;
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};
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};
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};
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