include/configs/omap3_overo.h

/*
 * Configuration settings for the Gumstix Overo board.
 *
 * 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.
 *
 * 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., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#ifndef __CONFIG_H
#define __CONFIG_H
#include <asm/sizes.h>

/*
 * High Level Configuration Options
 */
#define CONFIG_ARMCORTEXA8	1	/* This is an ARM V7 CPU core */
#define CONFIG_OMAP		1	/* in a TI OMAP core */
#define CONFIG_OMAP34XX		1	/* which is a 34XX */
#define CONFIG_OMAP3430		1	/* which is in a 3430 */
#define CONFIG_OMAP3_OVERO		1	/* working with overo */

#include <asm/arch/cpu.h>	/* get chip and board defs */
#include <asm/arch/omap3.h>

/* Clock Defines */
#define V_OSCK			26000000	/* Clock output from T2 */
#define V_SCLK			(V_OSCK >> 1)

#undef CONFIG_USE_IRQ		/* no support for IRQs */
#define CONFIG_MISC_INIT_R

#define CONFIG_CMDLINE_TAG		1	/* enable passing of ATAGs */
#define CONFIG_SETUP_MEMORY_TAGS	1
#define CONFIG_INITRD_TAG		1
#define CONFIG_REVISION_TAG		1

/*
 * Size of malloc() pool
 */
#define CONFIG_ENV_SIZE			SZ_128K	/* Total Size Environment */
						/* Sector */
#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + SZ_128K)
#define CONFIG_SYS_GBL_DATA_SIZE	128	/* bytes reserved for */
						/* initial data */

/*
 * Hardware drivers
 */

/*
 * NS16550 Configuration
 */
#define V_NS16550_CLK			48000000	/* 48MHz (APLL96/2) */

#define CONFIG_SYS_NS16550
#define CONFIG_SYS_NS16550_SERIAL
#define CONFIG_SYS_NS16550_REG_SIZE	(-4)
#define CONFIG_SYS_NS16550_CLK		V_NS16550_CLK

/*
 * select serial console configuration
 */
#define CONFIG_CONS_INDEX		3
#define CONFIG_SYS_NS16550_COM3		OMAP34XX_UART3
#define CONFIG_SERIAL3			3

/* allow to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE
#define CONFIG_BAUDRATE			115200
#define CONFIG_SYS_BAUDRATE_TABLE	{4800, 9600, 19200, 38400, 57600, \
					115200}
#define CONFIG_MMC			1
#define CONFIG_OMAP3_MMC		1
#define CONFIG_DOS_PARTITION		1

/* commands to include */
#include <config_cmd_default.h>

#define CONFIG_CMD_EXT2		/* EXT2 Support			*/
#define CONFIG_CMD_FAT		/* FAT support			*/
#define CONFIG_CMD_JFFS2	/* JFFS2 Support		*/

#define CONFIG_CMD_I2C		/* I2C serial bus support	*/
#define CONFIG_CMD_MMC		/* MMC support			*/
#define CONFIG_CMD_NAND		/* NAND support			*/

#undef CONFIG_CMD_FLASH		/* flinfo, erase, protect	*/
#undef CONFIG_CMD_FPGA		/* FPGA configuration Support	*/
#undef CONFIG_CMD_IMI		/* iminfo			*/
#undef CONFIG_CMD_IMLS		/* List all found images	*/
#undef CONFIG_CMD_NET		/* bootp, tftpboot, rarpboot	*/
#undef CONFIG_CMD_NFS		/* NFS support			*/

#define CONFIG_SYS_NO_FLASH
#define CONFIG_SYS_I2C_SPEED		100000
#define CONFIG_SYS_I2C_SLAVE		1
#define CONFIG_SYS_I2C_BUS		0
#define CONFIG_SYS_I2C_BUS_SELECT	1
#define CONFIG_DRIVER_OMAP34XX_I2C	1

/*
 * Board NAND Info.
 */
#define CONFIG_NAND_OMAP_GPMC
#define CONFIG_SYS_NAND_ADDR		NAND_BASE	/* physical address */
							/* to access nand */
#define CONFIG_SYS_NAND_BASE		NAND_BASE	/* physical address */
							/* to access nand */
							/* at CS0 */
#define GPMC_NAND_ECC_LP_x16_LAYOUT	1

#define CONFIG_SYS_MAX_NAND_DEVICE	1	/* Max number of NAND */
						/* devices */
#define SECTORSIZE			512

#define NAND_ALLOW_ERASE_ALL
#define ADDR_COLUMN			1
#define ADDR_PAGE			2
#define ADDR_COLUMN_PAGE		3

#define NAND_ChipID_UNKNOWN		0x00
#define NAND_MAX_FLOORS			1
#define NAND_MAX_CHIPS			1
#define NAND_NO_RB			1
#define CONFIG_SYS_NAND_WP

#define CONFIG_JFFS2_NAND
/* nand device jffs2 lives on */
#define CONFIG_JFFS2_DEV		"nand0"
/* start of jffs2 partition */
#define CONFIG_JFFS2_PART_OFFSET	0x680000
#define CONFIG_JFFS2_PART_SIZE		0xf980000	/* size of jffs2 */
							/* partition */

/* Environment information */
#define CONFIG_BOOTDELAY		5

#define CONFIG_EXTRA_ENV_SETTINGS \
	"loadaddr=0x82000000\0" \
	"console=ttyS2,115200n8\0" \
	"videomode=1024x768@60,vxres=1024,vyres=768\0" \
	"videospec=omapfb:vram:2M,vram:4M\0" \
	"mmcargs=setenv bootargs console=${console} " \
		"video=${videospec},mode:${videomode} " \
		"root=/dev/mmcblk0p2 rw " \
		"rootfstype=ext3 rootwait\0" \
	"nandargs=setenv bootargs console=${console} " \
		"video=${videospec},mode:${videomode} " \
		"root=/dev/mtdblock4 rw " \
		"rootfstype=jffs2\0" \
	"loadbootscript=fatload mmc 0 ${loadaddr} boot.scr\0" \
	"bootscript=echo Running bootscript from mmc ...; " \
		"source ${loadaddr}\0" \
	"loaduimage=fatload mmc 0 ${loadaddr} uImage\0" \
	"mmcboot=echo Booting from mmc ...; " \
		"run mmcargs; " \
		"bootm ${loadaddr}\0" \
	"nandboot=echo Booting from nand ...; " \
		"run nandargs; " \
		"nand read ${loadaddr} 280000 400000; " \
		"bootm ${loadaddr}\0" \

#define CONFIG_BOOTCOMMAND \
	"if mmc init; then " \
		"if run loadbootscript; then " \
			"run bootscript; " \
		"else " \
			"if run loaduimage; then " \
				"run mmcboot; " \
			"else run nandboot; " \
			"fi; " \
		"fi; " \
	"else run nandboot; fi"

#define CONFIG_AUTO_COMPLETE	1
/*
 * Miscellaneous configurable options
 */
#define V_PROMPT		"Overo # "

#define CONFIG_SYS_LONGHELP		/* undef to save memory */
#define CONFIG_SYS_HUSH_PARSER		/* use "hush" command parser */
#define CONFIG_SYS_PROMPT_HUSH_PS2	"> "
#define CONFIG_SYS_PROMPT		V_PROMPT
#define CONFIG_SYS_CBSIZE		256	/* Console I/O Buffer Size */
/* Print Buffer Size */
#define CONFIG_SYS_PBSIZE		(CONFIG_SYS_CBSIZE + \
					sizeof(CONFIG_SYS_PROMPT) + 16)
#define CONFIG_SYS_MAXARGS		16	/* max number of command */
						/* args */
/* Boot Argument Buffer Size */
#define CONFIG_SYS_BARGSIZE		CONFIG_SYS_CBSIZE
/* memtest works on */
#define CONFIG_SYS_MEMTEST_START	(OMAP34XX_SDRC_CS0)
#define CONFIG_SYS_MEMTEST_END		(OMAP34XX_SDRC_CS0 + \
					0x01F00000) /* 31MB */

#define CONFIG_SYS_LOAD_ADDR		(OMAP34XX_SDRC_CS0) /* default load */
								/* address */

/*
 * 2430 has 12 GP timers, they can be driven by the SysClk (12/13/19.2) or by
 * 32KHz clk, or from external sig. This rate is divided by a local divisor.
 */
#define CONFIG_SYS_TIMERBASE		(OMAP34XX_GPT2)
#define CONFIG_SYS_PTV			7	/* 2^(PTV+1) */
#define CONFIG_SYS_HZ			((V_SCLK) / (2 << CONFIG_SYS_PTV))

/*-----------------------------------------------------------------------
 * Stack sizes
 *
 * The stack sizes are set up in start.S using the settings below
 */
#define CONFIG_STACKSIZE	SZ_128K	/* regular stack */
#ifdef CONFIG_USE_IRQ
#define CONFIG_STACKSIZE_IRQ	SZ_4K	/* IRQ stack */
#define CONFIG_STACKSIZE_FIQ	SZ_4K	/* FIQ stack */
#endif

/*-----------------------------------------------------------------------
 * Physical Memory Map
 */
#define CONFIG_NR_DRAM_BANKS	2	/* CS1 may or may not be populated */
#define PHYS_SDRAM_1		OMAP34XX_SDRC_CS0
#define PHYS_SDRAM_1_SIZE	SZ_32M	/* at least 32 meg */
#define PHYS_SDRAM_2		OMAP34XX_SDRC_CS1

/* SDRAM Bank Allocation method */
#define SDRC_R_B_C		1

/*-----------------------------------------------------------------------
 * FLASH and environment organization
 */

/* **** PISMO SUPPORT *** */

/* Configure the PISMO */
#define PISMO1_NAND_SIZE		GPMC_SIZE_128M
#define PISMO1_ONEN_SIZE		GPMC_SIZE_128M

#define CONFIG_SYS_MAX_FLASH_SECT	520	/* max number of sectors on */
						/* one chip */
#define CONFIG_SYS_MAX_FLASH_BANKS	2	/* max number of flash banks */
#define CONFIG_SYS_MONITOR_LEN		SZ_256K	/* Reserve 2 sectors */

#define CONFIG_SYS_FLASH_BASE		boot_flash_base

/* Monitor at start of flash */
#define CONFIG_SYS_MONITOR_BASE		CONFIG_SYS_FLASH_BASE
#define CONFIG_SYS_ONENAND_BASE		ONENAND_MAP

#define CONFIG_ENV_IS_IN_NAND		1
#define ONENAND_ENV_OFFSET		0x240000 /* environment starts here */
#define SMNAND_ENV_OFFSET		0x240000 /* environment starts here */

#define CONFIG_SYS_ENV_SECT_SIZE	boot_flash_sec
#define CONFIG_ENV_OFFSET		boot_flash_off
#define CONFIG_ENV_ADDR			SMNAND_ENV_OFFSET

/*-----------------------------------------------------------------------
 * CFI FLASH driver setup
 */
/* timeout values are in ticks */
#define CONFIG_SYS_FLASH_ERASE_TOUT	(100 * CONFIG_SYS_HZ)
#define CONFIG_SYS_FLASH_WRITE_TOUT	(100 * CONFIG_SYS_HZ)

/* Flash banks JFFS2 should use */
#define CONFIG_SYS_MAX_MTD_BANKS	(CONFIG_SYS_MAX_FLASH_BANKS + \
					CONFIG_SYS_MAX_NAND_DEVICE)
#define CONFIG_SYS_JFFS2_MEM_NAND
/* use flash_info[2] */
#define CONFIG_SYS_JFFS2_FIRST_BANK	CONFIG_SYS_MAX_FLASH_BANKS
#define CONFIG_SYS_JFFS2_NUM_BANKS	1

#ifndef __ASSEMBLY__
extern gpmc_csx_t *nand_cs_base;
extern gpmc_t *gpmc_cfg_base;
extern unsigned int boot_flash_base;
extern volatile unsigned int boot_flash_env_addr;
extern unsigned int boot_flash_off;
extern unsigned int boot_flash_sec;
extern unsigned int boot_flash_type;
#endif


#define WRITE_NAND_COMMAND(d, adr)\
			writel(d, &nand_cs_base->nand_cmd)
#define WRITE_NAND_ADDRESS(d, adr)\
			writel(d, &nand_cs_base->nand_adr)
#define WRITE_NAND(d, adr) writew(d, &nand_cs_base->nand_dat)
#define READ_NAND(adr) readl(&nand_cs_base->nand_dat)

/* Other NAND Access APIs */
#define NAND_WP_OFF() do {readl(&gpmc_cfg_base->config) |= GPMC_CONFIG_WP; } \
			while (0)
#define NAND_WP_ON() do {readl(&gpmc_cfg_base->config) &= ~GPMC_CONFIG_WP; } \
			while (0)
#define NAND_DISABLE_CE(nand)
#define NAND_ENABLE_CE(nand)
#define NAND_WAIT_READY(nand)	udelay(10)

#endif				/* __CONFIG_H */