arm: imx53: Add support for imx53 boards from K+P

This commit adds support for DDC and HSC boards from
K+P in u-boot.

Console output:

U-Boot 2018.05-rc2-00090-g752b7ed6f9 (Apr 26 2018 - 14:24:24 +0200)

CPU:   Freescale i.MX53 rev2.1 at 800 MHz
Reset cause: WDOG
Model: K+P iMX53
DRAM:  512 MiB
MMC:   FSL_SDHC: 0
Loading Environment from MMC... OK
In:    serial
Out:   serial
Err:   serial
Module EEPROM:
  ID: TQMa53-CB.0401
  SN: 63152762
  MAC: 00:0b:64:03:14:2a
BBoard:40x0 Rev:10
Net:   eth0: ethernet@63fec000
Hit any key to stop autoboot:  0

Signed-off-by: Lukasz Majewski <lukma@denx.de>

2 files changed, 147 insertions, 0 deletions

diff --git a/arch/arm/dts/imx53-kp.dts b/arch/arm/dts/imx53-kp.dts
new file mode 100644
index 00000000000..fd64a9f2f6d
--- /dev/null
+++ b/arch/arm/dts/imx53-kp.dts
@@ -0,0 +1,135 @@
+/*
+ * Copyright 2018
+ * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
+ *
+ * SPDX-License-Identifier:     GPL-2.0+ or X11
+ */
+
+/dts-v1/;
+#include <dt-bindings/gpio/gpio.h>
+#include "imx53.dtsi"
+#include "imx53-pinfunc.h"
+
+/ {
+	model = "K+P iMX53";
+	compatible = "kp,imx53-kp", "fsl,imx53";
+
+	chosen {
+		stdout-path = &uart2;
+	};
+};
+
+&fec {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_eth>;
+	phy-mode = "rmii";
+	phy-reset-gpios = <&gpio7 6 0>;
+	status = "okay";
+};
+
+&i2c2 {
+	pinctrl-names = "default", "gpio";
+	pinctrl-0 = <&pinctrl_i2c2>;
+	pinctrl-1 = <&pinctrl_i2c2_gpio>;
+	clock_frequency = <100000>;
+
+	scl-gpios = <&gpio4 12 GPIO_ACTIVE_HIGH>;
+	sda-gpios = <&gpio4 13 GPIO_ACTIVE_HIGH>;
+
+	status = "okay";
+
+	pmic: mc34708@8 {
+		compatible = "fsl,mc34708";
+		reg = <0x8>;
+	};
+};
+
+&i2c3 {
+	pinctrl-names = "default", "gpio";
+	pinctrl-0 = <&pinctrl_i2c3>;
+	pinctrl-1 = <&pinctrl_i2c3_gpio>;
+	clock_frequency = <100000>;
+
+	scl-gpios = <&gpio1 5 GPIO_ACTIVE_HIGH>;
+	sda-gpios = <&gpio1 6 GPIO_ACTIVE_HIGH>;
+
+	status = "okay";
+};
+
+&iomuxc {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_hog>;
+
+	imx53-kp {
+		pinctrl_eth: ethgrp {
+			fsl,pins = <
+				MX53_PAD_FEC_MDIO__FEC_MDIO 0x1fc
+				MX53_PAD_FEC_MDC__FEC_MDC 0x4
+				MX53_PAD_FEC_RXD1__FEC_RDATA_1 0x180
+				MX53_PAD_FEC_RXD0__FEC_RDATA_0 0x180
+				MX53_PAD_FEC_TXD1__FEC_TDATA_1 0x4
+				MX53_PAD_FEC_TXD0__FEC_TDATA_0 0x4
+				MX53_PAD_FEC_TX_EN__FEC_TX_EN 0x4
+				MX53_PAD_FEC_REF_CLK__FEC_TX_CLK 0x180
+				/* The RX_ER pin needs to be pull down */
+				/* for this device */
+				MX53_PAD_FEC_RX_ER__FEC_RX_ER 0x1c0
+				MX53_PAD_FEC_CRS_DV__FEC_RX_DV 0x180
+				>;
+		};
+
+		pinctrl_hog: hoggrp {
+			fsl,pins = <
+				/* PHY RESET */
+				MX53_PAD_PATA_DA_0__GPIO7_6 0x182
+				/* VBUS_PWR_EN */
+				MX53_PAD_PATA_DA_2__GPIO7_8 0x1e4
+				/* BOOSTER_OFF */
+				MX53_PAD_EIM_CS0__GPIO2_23 0x1e4
+			>;
+		};
+
+		pinctrl_i2c2: i2c2grp {
+			fsl,pins = <
+				MX53_PAD_KEY_ROW3__I2C2_SDA
+						 (0x1ee | IMX_PAD_SION)
+				MX53_PAD_KEY_COL3__I2C2_SCL
+						 (0x1ee | IMX_PAD_SION)
+			>;
+		};
+
+		pinctrl_i2c2_gpio: i2c2grpgpio {
+			fsl,pins = <
+				MX53_PAD_KEY_ROW3__GPIO4_13 0x1e4
+				MX53_PAD_KEY_COL3__GPIO4_12 0x1e4
+			>;
+		};
+
+		pinctrl_i2c3: i2c3grp {
+			fsl,pins = <
+				MX53_PAD_GPIO_6__I2C3_SDA (0x1ee | IMX_PAD_SION)
+				MX53_PAD_GPIO_5__I2C3_SCL (0x1ee | IMX_PAD_SION)
+			>;
+		};
+
+		pinctrl_i2c3_gpio: i2c3grpgpio {
+			fsl,pins = <
+				MX53_PAD_GPIO_6__GPIO1_6 0x1e4
+				MX53_PAD_GPIO_5__GPIO1_5 0x1e4
+			>;
+		};
+
+		pinctrl_uart2: uart2grp {
+			fsl,pins = <
+				MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX 0x1e4
+				MX53_PAD_PATA_DMARQ__UART2_TXD_MUX 0x1e4
+			>;
+		};
+	};
+};
+
+&uart2 {
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_uart2>;
+	status = "okay";
+};
diff --git a/arch/arm/mach-imx/mx5/Kconfig b/arch/arm/mach-imx/mx5/Kconfig
index 3ce6bcfc889..06322b2aaac 100644
--- a/arch/arm/mach-imx/mx5/Kconfig
+++ b/arch/arm/mach-imx/mx5/Kconfig
@@ -16,6 +16,17 @@ choice
 	prompt "MX5 board select"
 	optional
 
+config TARGET_KP_IMX53
+	bool "Support K+P imx53 board"
+	select BOARD_LATE_INIT
+	select MX53
+	select DM
+	select DM_SERIAL
+	select DM_ETH
+	select DM_I2C
+	select DM_GPIO
+	select DM_PMIC
+
 config TARGET_M53EVK
 	bool "Support m53evk"
 	select MX53
@@ -79,6 +90,7 @@ source "board/freescale/mx53loco/Kconfig"
 source "board/freescale/mx53smd/Kconfig"
 source "board/ge/mx53ppd/Kconfig"
 source "board/inversepath/usbarmory/Kconfig"
+source "board/k+p/kp_imx53/Kconfig"
 source "board/technologic/ts4800/Kconfig"
 
 endif