sc3.h

U-boot源码 ARM7启动代码

/*
 * (C) Copyright 2007
 * Heiko Schocher, DENX Software Engineering, <[e-mail]>.
 *
 * From:
 * (C) Copyright 2003
 * Juergen Beisert, EuroDesign embedded technologies, [e-mail]
 *
 * 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

#undef USE_VGA_GRAPHICS

/* Memory Map
 * 0x00000000 .... 0x03FFFFFF -> RAM (up to 128MiB)
 * 0x74000000 .... 0x740FFFFF -> CS#6
 * 0x74100000 .... 0x741FFFFF -> CS#7
 * 0x74200000 .... 0x742FFFFF -> CS4# if no internal USB
 * 0x74300000 .... 0x743FFFFF -> CS5# if no boosted IDE
 * 0x77C00000 .... 0x77CFFFFF -> CS4# USB HC (1 MiB)
 * 0x77D00000 .... 0x77DFFFFF -> CS1# NAND-Flash (1 MiB)
 * 0x78000000 .... 0x78FFFFFF -> CS2# ISA-Bus Speicherzugriff (16 MiB)
 * 0x79000000 .... 0x7900FFFF -> CS2# ISA-Bus IO-Zugriff (16 MiB, mapped: 64kiB)
 * 0x79010000 .... 0x79FFFFFF -> CS2# ISA-Bus IO-Zugriff (mirrored)
 * 0x7A000000 .... 0x7A0FFFFF -> CS5# IDE emulation (1MiB)
 *
 * 0x80000000 .... 0x9FFFFFFF -> PCI-Bus Speicherzugriff (512MiB, mapped: 1:1)
 * 0xA0000000 .... 0xBFFFFFFF -> PCI-Bus Speicherzugriff (512MiB, mapped: 0x00000000...0x1FFFFFFF)
 * 0xE8000000 .... 0xE800FFFF -> PCI-Bus IO-Zugriff (64kiB, translated to PCI: 0x0000...0xFFFF)
 * 0xE8800000 .... 0xEBFFFFFF -> PCI-Bus IO-Zugriff (56MiB, translated to PCI: 0x00800000...0x3FFFFFF)
 * 0xEED00000 .... 0xEED00003 -> PCI-Bus
 * 0xEF400000 .... 0xEF40003F -> PCI-Bus Local Configuration Registers
 * 0xEF40003F .... 0xEF5FFFFF -> reserved
 * 0xEF600000 .... 0xEFFFFFFF -> 405GP internal Devices (10 MiB)
 * 0xF0000000 .... 0xF01FFFFF -> Flash-ROM (2 MiB)
 * 0xF0200000 .... 0xF7FFFFFF -> free for flash devices
 * 0xF8000000 .... 0xF8000FFF -> OnChipMemory (4kiB)
 * 0xF8001000 .... 0xFFDFFFFF -> free for flash devices
 * 0xFFE00000 .... 0xFFFFFFFF -> BOOT-ROM (2 MiB)
 */

#define CONFIG_SC3	1
#define CONFIG_4xx	1
#define CONFIG_405GP	1

#define CONFIG_BOARD_EARLY_INIT_F	1

/*
 * Define IDE_USES_ISA_EMULATION for slower IDE access in the ISA-IO address range
 * If undefined, IDE access uses a seperat emulation with higher access speed.
 * Consider to inform your Linux IDE driver about the different addresses!
 * IDE_USES_ISA_EMULATION is only used if you define CONFIG_CMD_IDE!
 */
#define IDE_USES_ISA_EMULATION

/*-----------------------------------------------------------------------
 * Serial Port
 *----------------------------------------------------------------------*/
#define CONFIG_SERIAL_MULTI
#undef CONFIG_SERIAL_SOFTWARE_FIFO
/*
 * define CONFIG_POWER_DOWN if your cpu should power down while waiting for your input
 * Works only, if you have enabled the CONFIG_SERIAL_SOFTWARE_FIFO feature
 */
#if CONFIG_SERIAL_SOFTWARE_FIFO
 #define CONFIG_POWER_DOWN
#endif

/*
 * define CONFIG_SYS_CLK_FREQ to your base crystal clock in Hz
 */
#define CONFIG_SYS_CLK_FREQ	33333333

/*
 * define CONFIG_BAUDRATE to the baudrate value you want to use as default
 */
#define CONFIG_BAUDRATE		115200
#define CONFIG_BOOTDELAY	3 /* autoboot after 3 seconds	      */

#define CONFIG_PREBOOT	"echo;"	\
	"echo Type \"run flash_nfs\" to mount root filesystem over NFS;" \
	"echo"

#undef	CONFIG_BOOTARGS

#define	CONFIG_EXTRA_ENV_SETTINGS					\
	"netdev=eth0\0"							\
	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
		"nfsroot=${serverip}:${rootpath}\0"			\
	"ramargs=setenv bootargs root=/dev/ram rw\0"			\
	"nand_args=setenv bootargs root=/dev/mtdblock5 rw"		\
		"rootfstype=jffs2\0"					\
	"addip=setenv bootargs ${bootargs} "				\
		"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}"	\
		":${hostname}:${netdev}:off panic=1\0"			\
	"addcons=setenv bootargs ${bootargs} "				\
		"console=ttyS0,${baudrate}\0"				\
	"flash_nfs=run nfsargs addip addcons;"				\
		"bootm ${kernel_addr}\0"				\
	"flash_nand=run nand_args addip addcons;bootm ${kernel_addr}\0"	\
	"net_nfs=tftp 200000 ${bootfile};run nfsargs addip addcons;"	\
		"bootm\0"						\
	"rootpath=/opt/eldk/ppc_4xx\0"					\
	"bootfile=/tftpboot/sc3/uImage\0"				\
	"u-boot=/tftpboot/sc3/u-boot.bin\0"				\
	"setup=tftp 200000 /tftpboot/sc3/setup.img;autoscr 200000\0"	\
	"kernel_addr=FFE08000\0"					\
	""
#undef CONFIG_BOOTCOMMAND

#define CONFIG_SILENT_CONSOLE	1	/* enable silent startup */
#define CFG_DEVICE_NULLDEV	1	/* include nulldev device	*/

#if 1	/* feel free to disable for development */
#define CONFIG_AUTOBOOT_KEYED		/* Enable password protection	*/
#define CONFIG_AUTOBOOT_PROMPT		"\nSC3 - booting... stop with ENTER\n"
#define CONFIG_AUTOBOOT_DELAY_STR	"\r"	/* 1st "password"	*/
#define CONFIG_AUTOBOOT_DELAY_STR2	"\n"	/* 1st "password"	*/
#endif

/*
 * define CONFIG_BOOTCOMMAND to the autoboot commands. They will running after
 * the CONFIG_BOOTDELAY delay to boot your machine
 */
#define CONFIG_BOOTCOMMAND	"bootp;dcache on;bootm"

/*
 * define CONFIG_BOOTARGS to the default kernel parameters. They will used if you don't
 * set different values at the u-boot prompt
 */
#ifdef USE_VGA_GRAPHICS
 #define CONFIG_BOOTARGS	"root=/dev/nfs rw ip=bootp nfsroot=/tftpboot/solidcard3re"
#else
 #define CONFIG_BOOTARGS	"console=ttyS0,115200 root=/dev/nfs rw ip=bootp"
#endif
/*
 * Is the USB host controller assembled? If yes define CONFIG_ISP1161_PRESENT
 * This reserves memory bank #4 for this purpose
 */
#undef CONFIG_ISP1161_PRESENT

#undef CONFIG_LOADS_ECHO   /* no echo on for serial download	*/
#define CFG_LOADS_BAUD_CHANGE	1	/* allow baudrate change	*/

#define CONFIG_NET_MULTI
/* #define CONFIG_EEPRO100_SROM_WRITE */
/* #define CONFIG_SHOW_MAC */
#define CONFIG_EEPRO100
#define CONFIG_MII 1			/* add 405GP MII PHY management		*/
#define CONFIG_PHY_ADDR 1	/* the connected Phy defaults to address 1 */

/*
 * BOOTP options
 */
#define CONFIG_BOOTP_BOOTFILESIZE
#define CONFIG_BOOTP_BOOTPATH
#define CONFIG_BOOTP_GATEWAY
#define CONFIG_BOOTP_HOSTNAME


/*
 * Command line configuration.
 */
#include <config_cmd_default.h>


#define CONFIG_CMD_AUTOSCRIPT
#define CONFIG_CMD_PCI
#define CONFIG_CMD_IRQ
#define CONFIG_CMD_NET
#define CONFIG_CMD_MII
#define CONFIG_CMD_PING
#define CONFIG_CMD_NAND
#define CONFIG_CMD_JFFS2
#define CONFIG_CMD_I2C
#define CONFIG_CMD_IDE
#define CONFIG_CMD_DATE
#define CONFIG_CMD_DHCP
#define CONFIG_CMD_CACHE
#define CONFIG_CMD_ELF


#undef CONFIG_WATCHDOG			/* watchdog disabled		*/

/*
 * Miscellaneous configurable options
 */
#define CFG_LONGHELP	1		/* undef to save memory		*/
#define CFG_PROMPT	"SC3> "	/* Monitor Command Prompt	*/
#define	CFG_CBSIZE	256		/* Console I/O Buffer Size	*/

#define CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */

#define CFG_MAXARGS	16		/* max number of command args	*/
#define CFG_BARGSIZE	CFG_CBSIZE	/* Boot Argument Buffer Size	*/

#define CFG_MEMTEST_START	0x0400000	/* memtest works on	*/
#define CFG_MEMTEST_END		0x0C00000	/* 4 ... 12 MB in DRAM	*/

/*
 * If CFG_EXT_SERIAL_CLOCK, then the UART divisor is 1.
 * If CFG_405_UART_ERRATA_59, then UART divisor is 31.
 * Otherwise, UART divisor is determined by CPU Clock and CFG_BASE_BAUD value.
 * The Linux BASE_BAUD define should match this configuration.
 *    baseBaud = cpuClock/(uartDivisor*16)
 * If CFG_405_UART_ERRATA_59 and 200MHz CPU clock,
 * set Linux BASE_BAUD to 403200.
 *
 * Consider the OPB clock! If it get lower the BASE_BAUD must be lower to
 * (see 405GP datasheet for descritpion)
 */
#undef	CFG_EXT_SERIAL_CLOCK		/* external serial clock */
#undef	CFG_405_UART_ERRATA_59		/* 405GP/CR Rev. D silicon */
#define CFG_BASE_BAUD		921600	/* internal clock */

/* The following table includes the supported baudrates */
#define CFG_BAUDRATE_TABLE  \
    {300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400}

#define CFG_LOAD_ADDR		0x1000000	/* default load address */
#define CFG_EXTBDINFO		1	/* To use extended board_into (bd_t) */

#define	CFG_HZ			1000	/* decrementer freq: 1 ms ticks	*/

/*-----------------------------------------------------------------------
 * IIC stuff
 *-----------------------------------------------------------------------
 */
#define  CONFIG_HARD_I2C		/* I2C with hardware support	*/
#undef	CONFIG_SOFT_I2C			/* I2C bit-banged		*/

#define I2C_INIT
#define I2C_ACTIVE 0
#define I2C_TRISTATE 0

#define CFG_I2C_SPEED		100000	/* use the standard 100kHz speed */
#define CFG_I2C_SLAVE		0x7F		/* mask valid bits */

#define CONFIG_RTC_DS1337
#define CFG_I2C_RTC_ADDR 0x68

/*-----------------------------------------------------------------------
 * PCI stuff
 *-----------------------------------------------------------------------
 */
#define PCI_HOST_ADAPTER 0		/* configure ar pci adapter	*/
#define PCI_HOST_FORCE	1		/* configure as pci host	*/
#define PCI_HOST_AUTO	2		/* detected via arbiter enable	*/

#define CONFIG_PCI			/* include pci support		*/
#define CONFIG_PCI_HOST	PCI_HOST_FORCE	/* select pci host function	*/
#define CONFIG_PCI_PNP			/* do pci plug-and-play		*/
					/* resource configuration	*/

/* If you want to see, whats connected to your PCI bus */
/* #define CONFIG_PCI_SCAN_SHOW */

#define CFG_PCI_SUBSYS_VENDORID 0x0000	/* PCI Vendor ID: to-do!!!	*/
#define CFG_PCI_SUBSYS_DEVICEID 0x0000	/* PCI Device ID: to-do!!!	*/
#define CFG_PCI_PTM1LA	0x00000000	/* point to sdram		*/
#define CFG_PCI_PTM1MS	0x80000001	/* 2GB, enable hard-wired to 1	*/
#define CFG_PCI_PTM1PCI 0x00000000	/* Host: use this pci address	*/
#define CFG_PCI_PTM2LA	0x00000000	/* disabled			*/
#define CFG_PCI_PTM2MS	0x00000000	/* disabled			*/
#define CFG_PCI_PTM2PCI 0x04000000	/* Host: use this pci address	*/

/*-----------------------------------------------------------------------
 * External peripheral base address
 *-----------------------------------------------------------------------
 */
#if !defined(CONFIG_CMD_IDE)

#undef	CONFIG_IDE_LED			/* no led for ide supported	*/
#undef	CONFIG_IDE_RESET		/* no reset for ide supported	*/

/*-----------------------------------------------------------------------
 * IDE/ATA stuff
 *-----------------------------------------------------------------------
 */
#else
#define CONFIG_START_IDE	1	/* check, if use IDE */