apollon.h

uboot详细解读可用启动引导LINUX2.6内核

/*
 * (C) Copyright 2005-2008
 * Samsung Electronics,
 * Kyungmin Park <[e-mail]>
 *
 * Configuration settings for the 2420 Samsung Apollon board.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * 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

/*
 * High Level Configuration Options
 */
#define CONFIG_ARM1136		1 /* This is an arm1136 CPU core */
#define CONFIG_OMAP		1 /* in a TI OMAP core */
#define CONFIG_OMAP2420		1 /* which is in a 2420 */
#define CONFIG_OMAP2420_APOLLON	1
#define CONFIG_APOLLON		1
#define CONFIG_APOLLON_PLUS	1 /* If you have apollon plus 1.x */

/* Clock config to target*/
#define PRCM_CONFIG_I		1
/* #define PRCM_CONFIG_II	1 */

/* Boot method */
/* uncomment if you use NOR boot */
/* #define CFG_NOR_BOOT		1 */

/* uncomment if you use NOR on CS3 */
/* #define CFG_USE_NOR		1 */

#ifdef CFG_NOR_BOOT
#undef CFG_USE_NOR
#define CFG_USE_NOR		1
#endif

#include <asm/arch/omap2420.h>	/* get chip and board defs */

#define	V_SCLK	12000000

/* input clock of PLL */
/* the OMAP2420 H4 has 12MHz, 13MHz, or 19.2Mhz crystal input */
#define	CONFIG_SYS_CLK_FREQ	V_SCLK

#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	CFG_ENV_SIZE SZ_128K	/* Total Size of Environment Sector */
#define	CFG_MALLOC_LEN	(CFG_ENV_SIZE + SZ_128K)
#define	CFG_GBL_DATA_SIZE	128	/* bytes reserved for initial data */

/*
 * Hardware drivers
 */

/*
 * SMC91c96 Etherent
 */
#define	CONFIG_DRIVER_LAN91C96
#define	CONFIG_LAN91C96_BASE	(APOLLON_CS1_BASE+0x300)
#define	CONFIG_LAN91C96_EXT_PHY

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

#define	CFG_NS16550
#define	CFG_NS16550_SERIAL
#define	CFG_NS16550_REG_SIZE	(-4)
#define	CFG_NS16550_CLK	V_NS16550_CLK	/* 3MHz (1.5MHz*2) */
#define	CFG_NS16550_COM1	OMAP2420_UART1

/*
 * select serial console configuration
 */
#define	CONFIG_SERIAL1	1	/* UART1 on H4 */

/* allow to overwrite serial and ethaddr */
#define	CONFIG_ENV_OVERWRITE
#define	CONFIG_CONS_INDEX	1
#define	CONFIG_BAUDRATE		115200
#define	CFG_BAUDRATE_TABLE	{9600, 19200, 38400, 57600, 115200}

/* this must be included AFTER the definition of CONFIG_COMMANDS (if any) */
#include	<config_cmd_default.h>

#define	CONFIG_CMD_DHCP
#define	CONFIG_CMD_DIAG
#define	CONFIG_CMD_ONENAND

#undef	CONFIG_CMD_AUTOSCRIPT

#ifndef	CFG_USE_NOR
# undef	CONFIG_CMD_FLASH
# undef	CONFIG_CMD_IMLS
#endif

#define	CONFIG_BOOTP_MASK	CONFIG_BOOTP_DEFAULT

#define	CONFIG_BOOTDELAY	1

#define	CONFIG_NETMASK	255.255.255.0
#define	CONFIG_IPADDR	192.168.116.25
#define	CONFIG_SERVERIP	192.168.116.1
#define	CONFIG_BOOTFILE	"uImage"
#define	CONFIG_ETHADDR	00:0E:99:00:24:20

#ifdef	CONFIG_APOLLON_PLUS
# define	CONFIG_BOOTARGS "root=/dev/nfs rw mem=64M console=ttyS0,115200n8 ip=192.168.116.25:192.168.116.1:192.168.116.1:255.255.255.0:apollon:eth0:off nfsroot=/tftpboot/nfsroot profile=2"
#else
# define	CONFIG_BOOTARGS "root=/dev/nfs rw mem=128M console=ttyS0,115200n8 ip=192.168.116.25:192.168.116.1:192.168.116.1:255.255.255.0:apollon:eth0:off nfsroot=/tftpboot/nfsroot profile=2"
#endif

#define	CONFIG_EXTRA_ENV_SETTINGS					\
	"Image=tftp 0x80008000 Image; go 0x80008000\0"			\
	"zImage=tftp 0x80180000 zImage; go 0x80180000\0"		\
	"uImage=tftp 0x80180000 uImage; bootm 0x80180000\0"		\
	"uboot=tftp 0x80008000 u-boot.bin; go 0x80008000\0"		\
	"xloader=tftp 0x80180000 x-load.bin; cp.w 0x80180000 0x00000400 0x1000; go 0x00000400\0"	\
	"syncmode50=mw.w 0x1e442 0xc0c4; mw 0x6800a060 0xe30d1201\0"	\
	"syncmode=mw.w 0x1e442 0xe0f4; mw 0x6800a060 0xe30d1201\0"	\
	"norboot=cp32 0x18040000 0x80008000 0x200000; go 0x80008000\0"	\
	"oneboot=onenand read 0x80008000 0x40000 0x200000; go 0x80008000\0"\
	"onesyncboot=run syncmode oneboot\0"				\
	"updateb=tftp 0x80180000 u-boot-onenand.bin; onenand erase 0x0 0x20000; onenand write 0x80180000 0x0 0x20000\0"					\
	"bootcmd=run uboot\0"

/*
 * Miscellaneous configurable options
 */
#define	V_PROMPT	"Apollon # "

#define	CFG_LONGHELP	/* undef to save memory */
#define	CFG_PROMPT	V_PROMPT
#define	CFG_CBSIZE	256	/* Console I/O Buffer Size */
/* Print Buffer Size */
#define	CFG_PBSIZE	(CFG_CBSIZE+sizeof(CFG_PROMPT)+16)
#define	CFG_MAXARGS	16	/* max number of command args */
#define	CFG_BARGSIZE	CFG_CBSIZE	/* Boot Argument Buffer Size */

#define	CFG_MEMTEST_START	(OMAP2420_SDRC_CS0)	/* memtest works on */
#define	CFG_MEMTEST_END		(OMAP2420_SDRC_CS0+SZ_31M)

#undef	CFG_CLKS_IN_HZ	/* everything, incl board info, in Hz */

#define	CFG_LOAD_ADDR	(OMAP2420_SDRC_CS0)	/* default load address */

/* The 2420 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	V_PVT	7	/* use with 12MHz/128 */

#define	CFG_TIMERBASE	OMAP2420_GPT2
#define	CFG_PVT	V_PVT	/* 2^(pvt+1) */
#define	CFG_HZ		((CONFIG_SYS_CLK_FREQ)/(2 << CFG_PVT))

/*-----------------------------------------------------------------------
 * 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	1	/* CS1 may or may not be populated */
#define	PHYS_SDRAM_1		OMAP2420_SDRC_CS0
#define	PHYS_SDRAM_1_SIZE	SZ_128M
#define	PHYS_SDRAM_2		OMAP2420_SDRC_CS1

/*-----------------------------------------------------------------------
 * FLASH and environment organization
 */
#ifdef	CFG_USE_NOR
/* OneNAND boot, NOR has CS3, But NOR has CS0 when NOR boot */
# define	CFG_FLASH_BASE		0x18000000
# define	CFG_MAX_FLASH_BANKS	1
# define	CFG_MAX_FLASH_SECT	1024
/*-----------------------------------------------------------------------

 * CFI FLASH driver setup
 */
# define	CFG_FLASH_CFI	1	/* Flash memory is CFI compliant */
# define	CFG_FLASH_CFI_DRIVER	1	/* Use drivers/cfi_flash.c */
/* #define CFG_FLASH_USE_BUFFER_WRITE 1 */ /* Use buffered writes (~10x faster) */
# define	CFG_FLASH_PROTECTION	1	/* Use h/w sector protection*/

#else	/* !CFG_USE_NOR */
# define	CFG_NO_FLASH	1
#endif	/* CFG_USE_NOR */

/* OneNAND boot, OneNAND has CS0, NOR boot ONeNAND has CS2 */
#define	CFG_ONENAND_BASE	0x00000000
#define	CFG_ENV_IS_IN_ONENAND	1
#define CFG_ENV_ADDR		0x00020000

#endif /* __CONFIG_H */