path: root/arch/arm/mach-shmobile/board-mackerel.c

/*
 * mackerel board support
 *
 * Copyright (C) 2010 Renesas Solutions Corp.
 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 *
 * based on ap4evb
 * Copyright (C) 2010  Magnus Damm
 * Copyright (C) 2008  Yoshihiro Shimoda
 *
 * 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; version 2 of the License.
 *
 * 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
#include <linux/delay.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/input.h>
#include <linux/io.h>
#include <linux/i2c.h>
#include <linux/leds.h>
#include <linux/mfd/sh_mobile_sdhi.h>
#include <linux/mfd/tmio.h>
#include <linux/mmc/host.h>
#include <linux/mmc/sh_mmcif.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.h>
#include <linux/smsc911x.h>
#include <linux/sh_intc.h>
#include <linux/tca6416_keypad.h>
#include <linux/usb/r8a66597.h>

#include <video/sh_mobile_hdmi.h>
#include <video/sh_mobile_lcdc.h>
#include <media/sh_mobile_ceu.h>
#include <media/soc_camera.h>
#include <media/soc_camera_platform.h>
#include <sound/sh_fsi.h>

#include <mach/common.h>
#include <mach/sh7372.h>

#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <asm/mach-types.h>

/*
 * Address	Interface		BusWidth	note
 * ------------------------------------------------------------------
 * 0x0000_0000	NOR Flash ROM (MCP)	16bit		SW7 : bit1 = ON
 * 0x0800_0000	user area		-
 * 0x1000_0000	NOR Flash ROM (MCP)	16bit		SW7 : bit1 = OFF
 * 0x1400_0000	Ether (LAN9220)		16bit
 * 0x1600_0000	user area		-		cannot use with NAND
 * 0x1800_0000	user area		-
 * 0x1A00_0000	-
 * 0x4000_0000	LPDDR2-SDRAM (POP)	32bit
 */

/*
 * CPU mode
 *
 * SW4                                     | Boot Area| Master   | Remarks
 *  1  | 2   | 3   | 4   | 5   | 6   | 8   |          | Processor|
 * ----+-----+-----+-----+-----+-----+-----+----------+----------+--------------
 * ON  | ON  | OFF | ON  | ON  | OFF | OFF | External | System   | External ROM
 * ON  | ON  | ON  | ON  | ON  | OFF | OFF | External | System   | ROM Debug
 * ON  | ON  | X   | ON  | OFF | OFF | OFF | Built-in | System   | ROM Debug
 * X   | OFF | X   | X   | X   | X   | OFF | Built-in | System   | MaskROM
 * OFF | X   | X   | X   | X   | X   | OFF | Built-in | System   | MaskROM
 * X   | X   | X   | OFF | X   | X   | OFF | Built-in | System   | MaskROM
 * OFF | ON  | OFF | X   | X   | OFF | ON  | External | System   | Standalone
 * ON  | OFF | OFF | X   | X   | OFF | ON  | External | Realtime | Standalone
*/

/*
 * NOR Flash ROM
 *
 *  SW1  |     SW2    | SW7  | NOR Flash ROM
 *  bit1 | bit1  bit2 | bit1 | Memory allocation
 * ------+------------+------+------------------
 *  OFF  | ON     OFF | ON   |    Area 0
 *  OFF  | ON     OFF | OFF  |    Area 4
 */

/*
 * SMSC 9220
 *
 *  SW1		SMSC 9220
 * -----------------------
 *  ON		access disable
 *  OFF		access enable
 */

/*
 * NAND Flash ROM
 *
 *  SW1  |     SW2    | SW7  | NAND Flash ROM
 *  bit1 | bit1  bit2 | bit2 | Memory allocation
 * ------+------------+------+------------------
 *  OFF  | ON     OFF | ON   |    FCE 0
 *  OFF  | ON     OFF | OFF  |    FCE 1
 */

/*
 * External interrupt pin settings
 *
 * IRQX  | pin setting        | device             | level
 * ------+--------------------+--------------------+-------
 * IRQ0  | ICR1A.IRQ0SA=0010  | SDHI2 card detect  | Low
 * IRQ6  | ICR1A.IRQ6SA=0011  | Ether(LAN9220)     | High
 * IRQ7  | ICR1A.IRQ7SA=0010  | LCD Tuch Panel     | Low
 * IRQ8  | ICR2A.IRQ8SA=0010  | MMC/SD card detect | Low
 * IRQ9  | ICR2A.IRQ9SA=0010  | KEY(TCA6408)       | Low
 * IRQ21 | ICR4A.IRQ21SA=0011 | Sensor(ADXL345)    | High
 * IRQ22 | ICR4A.IRQ22SA=0011 | Sensor(AK8975)     | High
 */

/*
 * USB
 *
 * USB0 : CN22 : Function
 * USB1 : CN31 : Function/Host *1
 *
 * J30 (for CN31) *1
 * ----------+---------------+-------------
 * 1-2 short | VBUS 5V       | Host
 * open      | external VBUS | Function
 *
 * *1
 * CN31 is used as Host in Linux.
 */

/*
 * SDHI0 (CN12)
 *
 * SW56 : OFF
 *
 */

/* MMC /SDHI1 (CN7)
 *
 * I/O voltage : 1.8v
 *
 * Power voltage : 1.8v or 3.3v
 *  J22 : select power voltage *1
 *	1-2 pin : 1.8v
 *	2-3 pin : 3.3v
 *
 * *1
 * Please change J22 depends the card to be used.
 * MMC's OCR field set to support either voltage for the card inserted.
 *
 *	SW1	|	SW33
 *		| bit1 | bit2 | bit3 | bit4
 * -------------+------+------+------+-------
 * MMC0	  OFF	|  OFF |  ON  |  ON  |  X
 * MMC1	  ON	|  OFF |  ON  |  X   | ON
 * SDHI1  OFF	|  ON  |   X  |  OFF | ON
 *
 */

/*
 * SDHI2 (CN23)
 *
 * microSD card sloct
 *
 */

/*
 * FIXME !!
 *
 * gpio_no_direction
 * are quick_hack.
 *
 * current gpio frame work doesn't have
 * the method to control only pull up/down/free.
 * this function should be replaced by correct gpio function
 */
static void __init gpio_no_direction(u32 addr)
{
	__raw_writeb(0x00, addr);
}

/* MTD */
static struct mtd_partition nor_flash_partitions[] = {
	{
		.name		= "loader",
		.offset		= 0x00000000,
		.size		= 512 * 1024,
		.mask_flags	= MTD_WRITEABLE,
	},
	{
		.name		= "bootenv",
		.offset		= MTDPART_OFS_APPEND,
		.size		= 512 * 1024,
		.mask_flags	= MTD_WRITEABLE,
	},
	{
		.name