[PATCH v3] ARM: dts: imx28: Add DTS description of imx28 based XEA board

From: Lukasz Majewski
Date: Tue May 18 2021 - 10:29:26 EST

This patch adds DTS definition of the imx278 based XEA board.

Signed-off-by: Lukasz Majewski <lukma@xxxxxxx>

---
Changes for v3:
- Remove meaningless 'regulator-always-on' and 'enable-active-high'
- Provide proper order for ssp{023}
- Change memory start address to @40000000

Changes for v2:
- Fix 'memory' node and remove regulators subnode
- Rename 'flash0: s25fl256s0@0' to flash@0
- Add proper compatible for XEA board
---
arch/arm/boot/dts/Makefile | 3 +-
arch/arm/boot/dts/imx28-lwe.dtsi | 170 +++++++++++++++++++++++++++++++
arch/arm/boot/dts/imx28-xea.dts | 99 ++++++++++++++++++
3 files changed, 271 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/boot/dts/imx28-lwe.dtsi
create mode 100644 arch/arm/boot/dts/imx28-xea.dts

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 8e5d4ab4e75e..d2398a090e4d 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -721,7 +721,8 @@ dtb-$(CONFIG_ARCH_MXS) += \
imx28-m28evk.dtb \
imx28-sps1.dtb \
imx28-ts4600.dtb \
- imx28-tx28.dtb
+ imx28-tx28.dtb \
+ imx28-xea.dtb
dtb-$(CONFIG_ARCH_NOMADIK) += \
ste-nomadik-s8815.dtb \
ste-nomadik-nhk15.dtb
diff --git a/arch/arm/boot/dts/imx28-lwe.dtsi b/arch/arm/boot/dts/imx28-lwe.dtsi
new file mode 100644
index 000000000000..bb971e660db8
--- /dev/null
+++ b/arch/arm/boot/dts/imx28-lwe.dtsi
@@ -0,0 +1,170 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021
+ * Lukasz Majewski, DENX Software Engineering, lukma@xxxxxxx
+ */
+
+/dts-v1/;
+#include "imx28.dtsi"
+
+/ {
+ aliases {
+ spi2 = &ssp3;
+ };
+
+ chosen {
+ bootargs = "root=/dev/mmcblk0p2 rootfstype=ext4 ro rootwait console=ttyAMA0,115200 panic=1";
+ };
+
+ memory@40000000 {
+ reg = <0x40000000 0x08000000>;
+ };
+
+ reg_3v3: regulator-reg-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+
+ reg_usb_5v: regulator-reg-usb-5v {
+ compatible = "regulator-fixed";
+ regulator-name = "usb_vbus";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ };
+
+ reg_fec_3v3: regulator-reg-fec-3v3 {
+ compatible = "regulator-fixed";
+ regulator-name = "fec-phy";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ };
+};
+
+&duart {
+ pinctrl-names = "default";
+ pinctrl-0 = <&duart_pins_a>;
+ status = "okay";
+};
+
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins_a>;
+ status = "okay";
+};
+
+&saif0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&saif0_pins_a>;
+ #sound-dai-cells = <0>;
+ assigned-clocks = <&clks 53>;
+ assigned-clock-rates = <12000000>;
+ status = "okay";
+};
+
+&saif1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&saif1_pins_a>;
+ fsl,saif-master = <&saif0>;
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
+
+&spi3_pins_a {
+ fsl,pinmux-ids = <
+ MX28_PAD_AUART2_RX__SSP3_D4
+ MX28_PAD_AUART2_TX__SSP3_D5
+ MX28_PAD_SSP3_SCK__SSP3_SCK
+ MX28_PAD_SSP3_MOSI__SSP3_CMD
+ MX28_PAD_SSP3_MISO__SSP3_D0
+ MX28_PAD_SSP3_SS0__SSP3_D3
+ MX28_PAD_AUART2_TX__GPIO_3_9
+ >;
+};
+
+&ssp0 {
+ compatible = "fsl,imx28-mmc";
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc0_8bit_pins_a>;
+ bus-width = <8>;
+ vmmc-supply = <&reg_3v3>;
+ non-removable;
+ status = "okay";
+};
+
+&ssp2 {
+ compatible = "fsl,imx28-spi";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi2_pins_a>;
+ status = "okay";
+};
+
+&ssp3 {
+ compatible = "fsl,imx28-spi";
+ pinctrl-names = "default";
+ pinctrl-0 = <&spi3_pins_a>;
+ status = "okay";
+
+ flash@0 {
+ compatible = "jedec,spi-nor";
+ spi-max-frequency = <40000000>;
+ reg = <0>;
+
+ partitions {
+ compatible = "fixed-partitions";
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ partition@0 {
+ label = "u-boot";
+ reg = <0 0x80000>;
+ read-only;
+ };
+
+ partition@80000 {
+ label = "env0";
+ reg = <0x80000 0x10000>;
+ };
+
+ partition@90000 {
+ label = "env1";
+ reg = <0x90000 0x10000>;
+ };
+
+ partition@100000 {
+ label = "kernel";
+ reg = <0x100000 0x400000>;
+ };
+
+ partition@500000 {
+ label = "swupdate";
+ reg = <0x500000 0x800000>;
+ };
+ };
+ };
+};
+
+&usb0 {
+ vbus-supply = <&reg_usb_5v>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb0_pins_b>, <&usb0_id_pins_a>;
+ dr_mode = "host";
+ status = "okay";
+};
+
+&usbphy0 {
+ status = "okay";
+};
+
+&usb1 {
+ vbus-supply = <&reg_usb_5v>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb1_pins_b>;
+ dr_mode = "host";
+ status = "okay";
+};
+
+&usbphy1 {
+ status = "okay";
+};
diff --git a/arch/arm/boot/dts/imx28-xea.dts b/arch/arm/boot/dts/imx28-xea.dts
new file mode 100644
index 000000000000..a400c108f66a
--- /dev/null
+++ b/arch/arm/boot/dts/imx28-xea.dts
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
+/*
+ * Copyright 2021
+ * Lukasz Majewski, DENX Software Engineering, lukma@xxxxxxx
+ */
+
+/dts-v1/;
+#include "imx28-lwe.dtsi"
+
+/ {
+ compatible = "lwn,imx28-xea", "fsl,imx28";
+};
+
+&can0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&can1_pins_a>;
+ status = "okay";
+};
+
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins_b>;
+ status = "okay";
+};
+
+&pinctrl {
+ pinctrl-names = "default";
+ pinctrl-0 = <&hog_pins_a &hog_pins_tiva>;
+
+ hog_pins_a: hog@0 {
+ reg = <0>;
+ fsl,pinmux-ids = <
+ MX28_PAD_GPMI_D00__GPIO_0_0
+ MX28_PAD_GPMI_D02__GPIO_0_2
+ MX28_PAD_GPMI_D05__GPIO_0_5
+ MX28_PAD_GPMI_CE1N__GPIO_0_17
+ MX28_PAD_GPMI_RDY0__GPIO_0_20
+ MX28_PAD_GPMI_RDY1__GPIO_0_21
+ MX28_PAD_GPMI_RDY2__GPIO_0_22
+ MX28_PAD_GPMI_RDN__GPIO_0_24
+ MX28_PAD_GPMI_CLE__GPIO_0_27
+ MX28_PAD_LCD_VSYNC__GPIO_1_28
+ MX28_PAD_SSP1_SCK__GPIO_2_12
+ MX28_PAD_SSP1_CMD__GPIO_2_13
+ MX28_PAD_SSP2_SS1__GPIO_2_20
+ MX28_PAD_SSP2_SS2__GPIO_2_21
+ MX28_PAD_LCD_D00__GPIO_1_0
+ MX28_PAD_LCD_D01__GPIO_1_1
+ MX28_PAD_LCD_D02__GPIO_1_2
+ MX28_PAD_LCD_D03__GPIO_1_3
+ MX28_PAD_LCD_D04__GPIO_1_4
+ MX28_PAD_LCD_D05__GPIO_1_5
+ MX28_PAD_LCD_D06__GPIO_1_6
+ >;
+ fsl,drive-strength = <MXS_DRIVE_4mA>;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ fsl,pull-up = <MXS_PULL_DISABLE>;
+ };
+
+ hog_pins_tiva: hog@1 {
+ reg = <1>;
+ fsl,pinmux-ids = <
+ MX28_PAD_GPMI_RDY3__GPIO_0_23
+ MX28_PAD_GPMI_WRN__GPIO_0_25
+ >;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ fsl,pull-up = <MXS_PULL_DISABLE>;
+ };
+
+ hog_pins_coding: hog@2 {
+ reg = <2>;
+ fsl,pinmux-ids = <
+ MX28_PAD_GPMI_D01__GPIO_0_1
+ MX28_PAD_GPMI_D03__GPIO_0_3
+ MX28_PAD_GPMI_D04__GPIO_0_4
+ MX28_PAD_GPMI_D06__GPIO_0_6
+ MX28_PAD_GPMI_D07__GPIO_0_7
+ >;
+ fsl,voltage = <MXS_VOLTAGE_HIGH>;
+ fsl,pull-up = <MXS_PULL_DISABLE>;
+ };
+};
+
+&reg_fec_3v3 {
+ gpio = <&gpio0 0 0>;
+};
+
+&reg_usb_5v {
+ gpio = <&gpio0 2 0>;
+};
+
+&spi2_pins_a {
+ fsl,pinmux-ids = <
+ MX28_PAD_SSP2_SCK__SSP2_SCK
+ MX28_PAD_SSP2_MOSI__SSP2_CMD
+ MX28_PAD_SSP2_MISO__SSP2_D0
+ MX28_PAD_SSP2_SS0__GPIO_2_19
+ >;
+};
--
2.20.1