imx: board: Add support for the K+P's kp_imx6q_tpc board

This commit provides support for Kieback & Peter GmbH IMX6Q based
TPC board.

U-boot console output:

U-Boot SPL 2018.05-rc1-00005-g631e2d01fd (Apr 04 2018 - 21:16:24 +0200)
Trying to boot from MMC1

U-Boot 2018.05-rc1-00005-g631e2d01fd (Apr 04 2018 - 21:16:24 +0200)

CPU:   Freescale i.MX6Q rev1.5 996 MHz (running at 792 MHz)
CPU:   Extended Commercial temperature grade (-20C to 105C) at 37C
Reset cause: POR
Board: K+P KP_IMX6Q_TPC i.MX6Q
       Watchdog enabled
I2C:   ready
DRAM:  2 GiB
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... OK
In:    serial
Out:   serial
Err:   serial
Net:   FEC [PRIME]
Autoboot in 3 seconds

1 files changed, 141 insertions, 0 deletions

diff --git a/include/configs/kp_imx6q_tpc.h b/include/configs/kp_imx6q_tpc.h
new file mode 100644
index 0000000..fae2fae
--- /dev/null
+++ b/include/configs/kp_imx6q_tpc.h
@@ -0,0 +1,141 @@
+/*
+ * K+P iMX6Q KP_IMX6Q_TPC board configuration
+ *
+ * Copyright (C) 2018 Lukasz Majewski <lukma@denx.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __KP_IMX6Q_TPC_IMX6_CONFIG_H_
+#define __KP_IMX6Q_TPC_IMX6_CONFIG_H_
+
+#include <asm/arch/imx-regs.h>
+
+#include "mx6_common.h"
+
+/* SPL */
+#include "imx6_spl.h"			/* common IMX6 SPL configuration */
+
+/* Miscellaneous configurable options */
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_INITRD_TAG
+#define CONFIG_REVISION_TAG
+
+#define CONFIG_BOUNCE_BUFFER
+
+/* Size of malloc() pool */
+#define CONFIG_SYS_MALLOC_LEN		(4 * SZ_1M)
+
+/* FEC ethernet */
+#define CONFIG_MII
+#define IMX_FEC_BASE			ENET_BASE_ADDR
+#define CONFIG_FEC_XCV_TYPE		RGMII
+#define CONFIG_ETHPRIME			"FEC"
+#define CONFIG_FEC_MXC_PHYADDR		0
+#define CONFIG_ARP_TIMEOUT		200UL
+
+/* Fuses */
+#ifdef CONFIG_CMD_FUSE
+#define CONFIG_MXC_OCOTP
+#endif
+
+/* I2C Configs */
+#define CONFIG_SYS_I2C
+#define CONFIG_SYS_I2C_MXC
+#define CONFIG_SYS_I2C_MXC_I2C1		/* enable I2C bus 1 */
+#define CONFIG_SYS_I2C_MXC_I2C2		/* enable I2C bus 2 */
+#define CONFIG_SYS_I2C_SPEED		100000
+
+/* MMC Configs */
+#define CONFIG_FSL_ESDHC
+#define CONFIG_FSL_USDHC
+#define CONFIG_SYS_FSL_ESDHC_ADDR	0
+#define CONFIG_SYS_FSL_USDHC_NUM	2
+#define CONFIG_SYS_MMC_ENV_DEV		1 /* 0 = SDHC2, 1 = SDHC4 (eMMC) */
+
+/* UART */
+#define CONFIG_MXC_UART
+#define CONFIG_MXC_UART_BASE		UART1_BASE
+#define CONFIG_CONS_INDEX		1
+#define CONFIG_BAUDRATE			115200
+
+/* USB Configs */
+#ifdef CONFIG_CMD_USB
+#define CONFIG_EHCI_HCD_INIT_AFTER_RESET
+#define CONFIG_USB_HOST_ETHER
+#define CONFIG_USB_ETHER_ASIX
+#define CONFIG_MXC_USB_PORTSC		(PORT_PTS_UTMI | PORT_PTS_PTW)
+#define CONFIG_MXC_USB_FLAGS		0
+#define CONFIG_USB_MAX_CONTROLLER_COUNT	2 /* Enabled USB controller number */
+#endif
+
+/* Watchdog */
+#define CONFIG_HW_WATCHDOG
+#define CONFIG_IMX_WATCHDOG
+#define CONFIG_WATCHDOG_TIMEOUT_MSECS	60000
+
+/* allow to overwrite serial and ethaddr */
+#define CONFIG_ENV_OVERWRITE
+
+#define CONFIG_LOADADDR			0x12000000
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+
+#ifndef CONFIG_SPL_BUILD
+#define CONFIG_EXTRA_ENV_SETTINGS	\
+	"console=ttymxc0,115200\0"	\
+	"fdt_addr=0x18000000\0"		\
+	"fdt_high=0xffffffff\0"		\
+	"initrd_high=0xffffffff\0"	\
+	"kernel_addr_r=0x10008000\0"	\
+	"fdt_addr_r=0x13000000\0"	\
+	"ramdisk_addr_r=0x18000000\0"	\
+	"scriptaddr=0x14000000\0"	\
+	"kernel_file=fitImage\0"\
+	"rdinit=/sbin/init\0" \
+	"addinitrd=setenv bootargs ${bootargs} rdinit=${rdinit} ${debug} \0" \
+	"fit_config=mx6q_tpc70_conf\0" \
+	"upd_image=st.4k\0" \
+	"updargs=setenv bootargs console=${console} ${smp}"\
+	       "rdinit=${rdinit} ${debug} ${displayargs}\0" \
+	"loadusb=usb start; " \
+	       "fatload usb 0 ${loadaddr} ${upd_image}\0" \
+	"usbupd=echo Booting update from usb ...; " \
+	       "setenv bootargs; " \
+	       "run updargs; " \
+	       "run loadusb; " \
+	       "bootm ${loadaddr}#${fit_config}\0" \
+	BOOTENV
+
+#define CONFIG_BOOTCOMMAND		"run usbupd; run distro_bootcmd"
+
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 0) \
+	func(MMC, mmc, 1) \
+	func(USB, usb, 0) \
+	func(DHCP, dhcp, na)
+
+#include <config_distro_bootcmd.h>
+#endif
+
+/* Physical Memory Map */
+#define CONFIG_NR_DRAM_BANKS		1
+#define PHYS_SDRAM			MMDC0_ARB_BASE_ADDR
+
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM
+#define CONFIG_SYS_INIT_RAM_ADDR	IRAM_BASE_ADDR
+#define CONFIG_SYS_INIT_RAM_SIZE	IRAM_SIZE
+
+#define CONFIG_SYS_INIT_SP_OFFSET \
+	(CONFIG_SYS_INIT_RAM_SIZE - GENERATED_GBL_DATA_SIZE)
+
+#define CONFIG_SYS_INIT_SP_ADDR \
+	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
+
+/* Environment */
+#define CONFIG_ENV_SIZE	(SZ_8K)
+#define CONFIG_ENV_OFFSET       0x100000
+#define CONFIG_ENV_OFFSET_REDUND (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
+#define CONFIG_SYS_REDUNDAND_ENVIRONMENT
+
+#endif	/* __KP_IMX6Q_TPC_IMX6_CONFIG_H_ */