linux/arch/arm/boot/dts/imx28-cfa10049.dts
Maxime Ripard 7ecc70a98c ARM: dts: cfa10049: Change the SPI3 bus to spi-gpio
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>
2013-01-29 15:38:59 +08:00

187 lines
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/*
* Copyright 2012 Free Electrons
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
/*
* The CFA-10049 is an expansion board for the CFA-10036 module, thus we
* need to include the CFA-10036 DTS.
*/
/include/ "imx28-cfa10036.dts"
/ {
model = "Crystalfontz CFA-10049 Board";
compatible = "crystalfontz,cfa10049", "crystalfontz,cfa10036", "fsl,imx28";
apb@80000000 {
apbh@80000000 {
pinctrl@80018000 {
pinctrl-names = "default", "default";
pinctrl-1 = <&hog_pins_cfa10049
&hog_pins_cfa10049_pullup>;
hog_pins_cfa10049: hog-10049@0 {
reg = <0>;
fsl,pinmux-ids = <
0x0073 /* MX28_PAD_GPMI_D7__GPIO_0_7 */
0x1163 /* MX28_PAD_LCD_D22__GPIO_1_22 */
0x1173 /* MX28_PAD_LCD_D22__GPIO_1_23 */
0x2153 /* MX28_PAD_SSP2_D5__GPIO_2_21 */
>;
fsl,drive-strength = <0>;
fsl,voltage = <1>;
fsl,pull-up = <0>;
};
hog_pins_cfa10049_pullup: hog-10049-pullup@0 {
reg = <0>;
fsl,pinmux-ids = <
0x2133 /* MX28_PAD_SSP2_D3__GPIO_2_19 */
>;
fsl,drive-strength = <0>;
fsl,voltage = <1>;
fsl,pull-up = <1>;
};
spi3_pins_cfa10049: spi3-cfa10049@0 {
reg = <0>;
fsl,pinmux-ids = <
0x0183 /* MX28_PAD_GPMI_RDN__GPIO_0_24 */
0x01c3 /* MX28_PAD_GPMI_RESETN__GPIO_0_28 */
0x0113 /* MX28_PAD_GPMI_CE1N__GPIO_0_17 */
0x01a3 /* MX28_PAD_GPMI_ALE__GPIO_0_26 */
0x01b3 /* MX28_PAD_GPMI_CLE__GPIO_0_27 */
>;
fsl,drive-strength = <1>;
fsl,voltage = <1>;
fsl,pull-up = <1>;
};
};
};
apbx@80040000 {
i2c1: i2c@8005a000 {
pinctrl-names = "default";
pinctrl-0 = <&i2c1_pins_a>;
status = "okay";
};
i2cmux {
compatible = "i2c-mux-gpio";
#address-cells = <1>;
#size-cells = <0>;
mux-gpios = <&gpio1 22 0 &gpio1 23 0>;
i2c-parent = <&i2c1>;
i2c@0 {
reg = <0>;
};
i2c@1 {
reg = <1>;
};
i2c@2 {
reg = <2>;
};
i2c@3 {
reg = <3>;
#address-cells = <1>;
#size-cells = <0>;
pca9555: pca9555@20 {
compatible = "nxp,pca9555";
interrupt-parent = <&gpio2>;
interrupts = <19 0x2>;
gpio-controller;
#gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
reg = <0x20>;
};
};
};
usbphy1: usbphy@8007e000 {
status = "okay";
};
};
};
ahb@80080000 {
usb1: usb@80090000 {
vbus-supply = <&reg_usb1_vbus>;
pinctrl-0 = <&usbphy1_pins_a>;
pinctrl-names = "default";
status = "okay";
};
};
regulators {
compatible = "simple-bus";
reg_usb1_vbus: usb1_vbus {
compatible = "regulator-fixed";
regulator-name = "usb1_vbus";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
gpio = <&gpio0 7 1>;
};
};
ahb@80080000 {
mac0: ethernet@800f0000 {
phy-mode = "rmii";
pinctrl-names = "default";
pinctrl-0 = <&mac0_pins_a>;
phy-reset-gpios = <&gpio2 21 0>;
phy-reset-duration = <100>;
status = "okay";
};
};
spi3 {
compatible = "spi-gpio";
pinctrl-names = "default";
pinctrl-0 = <&spi3_pins_cfa10049>;
status = "okay";
gpio-sck = <&gpio0 24 0>;
gpio-mosi = <&gpio0 28 0>;
cs-gpios = <&gpio0 17 0 &gpio0 26 0 &gpio0 27 0>;
num-chipselects = <3>;
#address-cells = <1>;
#size-cells = <0>;
gpio5: gpio5@0 {
compatible = "fairchild,74hc595";
gpio-controller;
#gpio-cells = <2>;
reg = <0>;
registers-number = <2>;
spi-max-frequency = <100000>;
};
gpio6: gpio6@1 {
compatible = "fairchild,74hc595";
gpio-controller;
#gpio-cells = <2>;
reg = <1>;
registers-number = <4>;
spi-max-frequency = <100000>;
};
dac0: dh2228@2 {
compatible = "rohm,dh2228fv";
reg = <2>;
spi-max-frequency = <100000>;
};
};
};