Add support for Bluegiga APX4 Development Kit

This adds support for Bluegiga APX4 Development Kit. It is built around
Freescale i.MX28. Currently supported features are: ethernet, I2C, MMC,
RTC and USB. APX4 has only one ethernet port.

Signed-off-by: Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
Signed-off-by: Lauri Hintsala <lauri.hintsala@bluegiga.com>
Cc: Stefano Babic <sbabic@denx.de>

1 files changed, 238 insertions, 0 deletions

diff --git a/include/configs/apx4devkit.h b/include/configs/apx4devkit.h
new file mode 100644
index 0000000..9e7ead5
--- /dev/null
+++ b/include/configs/apx4devkit.h
@@ -0,0 +1,238 @@
+/*
+ * Copyright (C) 2012 Bluegiga Technologies Oy
+ *
+ * Authors:
+ * Veli-Pekka Peltola <veli-pekka.peltola@bluegiga.com>
+ * Lauri Hintsala <lauri.hintsala@bluegiga.com>
+ *
+ * Based on m28evk.h:
+ * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
+ * on behalf of DENX Software Engineering GmbH
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	 See the
+ * GNU General Public License for more details.
+ */
+#ifndef __CONFIG_H
+#define __CONFIG_H
+
+#include <asm/arch/regs-base.h>
+
+/* SoC configurations */
+#define CONFIG_MX28				/* i.MX28 SoC */
+#define CONFIG_MXS_GPIO				/* GPIO control */
+#define CONFIG_SYS_HZ		1000		/* Ticks per second */
+
+#define MACH_TYPE_APX4DEVKIT	3712
+#define CONFIG_MACH_TYPE	MACH_TYPE_APX4DEVKIT
+
+#define CONFIG_SYS_NO_FLASH
+#define CONFIG_SYS_ICACHE_OFF
+#define CONFIG_SYS_DCACHE_OFF
+#define CONFIG_BOARD_EARLY_INIT_F
+#define CONFIG_ARCH_CPU_INIT
+#define CONFIG_ARCH_MISC_INIT
+
+/* SPL */
+#define CONFIG_SPL
+#define CONFIG_SPL_NO_CPU_SUPPORT_CODE
+#define CONFIG_SPL_START_S_PATH	"arch/arm/cpu/arm926ejs/mx28"
+#define CONFIG_SPL_LDSCRIPT	"arch/arm/cpu/arm926ejs/mx28/u-boot-spl.lds"
+#define CONFIG_SPL_LIBCOMMON_SUPPORT
+#define CONFIG_SPL_LIBGENERIC_SUPPORT
+#define CONFIG_SPL_GPIO_SUPPORT
+
+/* U-Boot Commands */
+#include <config_cmd_default.h>
+#define CONFIG_DISPLAY_CPUINFO
+#define CONFIG_DOS_PARTITION
+
+#define CONFIG_CMD_CACHE
+#define CONFIG_CMD_DATE
+#define CONFIG_CMD_DHCP
+#define CONFIG_CMD_EXT2
+#define CONFIG_CMD_FAT
+#define CONFIG_CMD_I2C
+#define CONFIG_CMD_MII
+#define CONFIG_CMD_MMC
+#define CONFIG_CMD_NAND
+#define CONFIG_CMD_NET
+#define CONFIG_CMD_NFS
+#define CONFIG_CMD_PING
+#define CONFIG_CMD_SAVEENV
+#define CONFIG_CMD_USB
+
+/* Memory configurations */
+#define CONFIG_NR_DRAM_BANKS		1		/* 1 bank of DRAM */
+#define PHYS_SDRAM_1			0x40000000	/* Base address */
+#define PHYS_SDRAM_1_SIZE		0x20000000	/* Max 512 MB RAM */
+#define CONFIG_SYS_MALLOC_LEN		0x00400000	/* 4 MB for malloc */
+#define CONFIG_SYS_MEMTEST_START	0x40000000	/* Memtest start adr */
+#define CONFIG_SYS_MEMTEST_END		0x40400000	/* 4 MB RAM test */
+#define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
+
+/* Point initial SP in SRAM so SPL can use it too. */
+#define CONFIG_SYS_INIT_RAM_ADDR	0x00000000
+#define CONFIG_SYS_INIT_RAM_SIZE	(128 * 1024)
+
+#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)
+
+/*
+ * We need to sacrifice first 4 bytes of RAM here to avoid triggering some
+ * strange BUG in ROM corrupting first 4 bytes of RAM when loading U-Boot
+ * binary. In case there was more of this mess, 0x100 bytes are skipped.
+ */
+#define CONFIG_SYS_TEXT_BASE		0x40000100
+
+#define CONFIG_ENV_OVERWRITE
+
+/* U-Boot general configurations */
+#define CONFIG_SYS_LONGHELP
+#define CONFIG_SYS_PROMPT		"=> "
+#define CONFIG_SYS_CBSIZE		1024	/* Console I/O buffer size */
+#define CONFIG_SYS_PBSIZE	\
+	(CONFIG_SYS_CBSIZE + sizeof(CONFIG_SYS_PROMPT) + 16)
+						/* Print buffer size */
+#define CONFIG_SYS_MAXARGS		32	/* Max number of command args */
+#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
+						/* Boot argument buffer size */
+#define CONFIG_VERSION_VARIABLE			/* U-Boot version */
+#define CONFIG_AUTO_COMPLETE			/* Command auto complete */
+#define CONFIG_CMDLINE_EDITING			/* Command history etc. */
+#define CONFIG_SYS_HUSH_PARSER
+#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
+#define CONFIG_OF_LIBFDT
+#define CONFIG_ENV_IS_IN_NAND
+
+/* Serial Driver */
+#define CONFIG_PL011_SERIAL
+#define CONFIG_PL011_CLOCK		24000000
+#define CONFIG_PL01x_PORTS		{ (void *)MXS_UARTDBG_BASE }
+#define CONFIG_CONS_INDEX		0
+#define CONFIG_BAUDRATE			115200	/* Default baud rate */
+#define CONFIG_SYS_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
+
+/* DMA */
+#define CONFIG_APBH_DMA
+
+/* MMC Driver */
+#ifdef CONFIG_ENV_IS_IN_MMC
+#define CONFIG_ENV_OFFSET		(256 * 1024)
+#define CONFIG_ENV_SIZE			(16 * 1024)
+#define CONFIG_SYS_MMC_ENV_DEV		0
+#endif
+
+#ifdef CONFIG_CMD_MMC
+#define CONFIG_MMC
+#define CONFIG_GENERIC_MMC
+#define CONFIG_MMC_BOUNCE_BUFFER
+#define CONFIG_MXS_MMC
+#endif
+
+/* NAND Driver */
+#ifdef CONFIG_ENV_IS_IN_NAND
+#define CONFIG_ENV_SECT_SIZE		(128 * 1024)
+#define CONFIG_ENV_SIZE			(128 * 1024)
+#define CONFIG_ENV_SIZE_REDUND		CONFIG_ENV_SIZE
+#define CONFIG_ENV_RANGE		(384 * 1024)
+#define CONFIG_ENV_OFFSET		0x120000
+#define CONFIG_ENV_OFFSET_REDUND	\
+		(CONFIG_ENV_OFFSET + CONFIG_ENV_RANGE)
+#endif
+
+#ifdef CONFIG_CMD_NAND
+#define CONFIG_NAND_MXS
+#define CONFIG_SYS_MAX_NAND_DEVICE	1
+#define CONFIG_SYS_NAND_BASE		0x60000000
+#define CONFIG_SYS_NAND_5_ADDR_CYCLE
+
+#define CONFIG_CMD_UBI
+#define CONFIG_CMD_UBIFS
+#define CONFIG_CMD_MTDPARTS
+#define CONFIG_RBTREE
+#define CONFIG_LZO
+#define CONFIG_MTD_DEVICE
+#define CONFIG_MTD_PARTITIONS
+#define MTDIDS_DEFAULT			"nand0=gpmi-nand"
+#define MTDPARTS_DEFAULT \
+	"mtdparts=gpmi-nand:128k(bootstrap),1024k(boot),768k(env),-(root)"
+#else
+#define MTDPARTS_DEFAULT		""
+#endif
+
+/* Ethernet on SOC (FEC) */
+#ifdef CONFIG_CMD_NET
+#define CONFIG_NET_MULTI
+#define CONFIG_ETHPRIME			"FEC"
+#define CONFIG_FEC_MXC
+#define CONFIG_FEC_MXC_PHYADDR		0
+#define IMX_FEC_BASE			MXS_ENET0_BASE
+#define CONFIG_MII
+#define CONFIG_DISCOVER_PHY
+#define CONFIG_FEC_XCV_TYPE		RMII
+#endif
+
+/* USB */
+#ifdef CONFIG_CMD_USB
+#define CONFIG_USB_EHCI
+#define CONFIG_USB_EHCI_MXS
+#define CONFIG_EHCI_MXS_PORT		1
+#define CONFIG_EHCI_IS_TDI
+#define CONFIG_USB_STORAGE
+#endif
+
+/* I2C */
+#ifdef CONFIG_CMD_I2C
+#define CONFIG_I2C_MXS
+#define CONFIG_HARD_I2C
+#define CONFIG_SYS_I2C_SPEED		400000
+#endif
+
+/* RTC */
+#if defined(CONFIG_CMD_DATE)
+#define CONFIG_RTC_PCF8563
+#define CONFIG_SYS_I2C_RTC_ADDR		0x51
+#endif
+
+/* Boot Linux */
+#define CONFIG_CMDLINE_TAG
+#define CONFIG_SETUP_MEMORY_TAGS
+#define CONFIG_BOOTDELAY		1
+#define CONFIG_BOOTFILE			"uImage"
+#define CONFIG_BOOTCOMMAND		"run bootcmd_nand"
+#define CONFIG_LOADADDR			0x41000000
+#define CONFIG_SYS_LOAD_ADDR		CONFIG_LOADADDR
+#define CONFIG_SERIAL_TAG
+#define CONFIG_REVISION_TAG
+
+/* Extra Environments */
+#define CONFIG_EXTRA_ENV_SETTINGS \
+	"mtdparts=" MTDPARTS_DEFAULT "\0" \
+	"verify=no\0" \
+	"bootcmd=run bootcmd_nand\0" \
+	"kernelargs=console=tty0 console=ttyAMA0,115200 consoleblank=0\0" \
+	"bootargs_nand=" \
+		"setenv bootargs ${kernelargs} ubi.mtd=3,2048 " \
+		"root=ubi0:rootfs rootfstype=ubifs ${mtdparts} rw\0" \
+	"bootcmd_nand=" \
+		"run bootargs_nand && ubi part root 2048 && " \
+		"ubifsmount rootfs && ubifsload 41000000 boot/uImage && " \
+		"bootm 41000000\0" \
+	"bootargs_mmc=" \
+		"setenv bootargs ${kernelargs} " \
+		"root=/dev/mmcblk0p2 rootwait ${mtdparts} rw\0" \
+	"bootcmd_mmc=" \
+		"run bootargs_mmc && mmc rescan && " \
+		"ext2load mmc 0:2 41000000 boot/uImage && bootm 41000000\0" \
+""
+
+#endif /* __CONFIG_H */