bubinga405ep.h

AT91RM9200的完整启动代码：包括loader, boot及U-boot三部分均已编译通过！欢迎下载使用！

/*
 * (C) Copyright 2000, 2001
 * Wolfgang Denk, DENX Software Engineering, [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
 */

/*
 * board/config.h - configuration options, board specific
 */

#ifndef __CONFIG_H
#define __CONFIG_H

/* Debug options */
/*#define __DEBUG_START_FROM_SRAM__ */



/*
 * High Level Configuration Options
 * (easy to change)
 */

#define CONFIG_405EP		1	/* This is a PPC405 CPU		*/
#define CONFIG_4xx		1	/* ...member of PPC4xx family   */
#define CONFIG_BUBINGA405EP	1	/* ...on a BUBINGA405EP board	*/

#define CONFIG_BOARD_PRE_INIT	1	/* Call board_pre_init	*/

#define CONFIG_SYS_CLK_FREQ     33333333 /* external frequency to pll   */

#define CONFIG_NO_SERIAL_EEPROM
/*#undef CONFIG_NO_SERIAL_EEPROM*/
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
#ifdef CONFIG_NO_SERIAL_EEPROM

/*
!-------------------------------------------------------------------------------
! Defines for entry options.
! Note: Because the 405EP SDRAM controller does not support ECC, ECC DIMMs that
!       are plugged in the board will be utilized as non-ECC DIMMs.
!-------------------------------------------------------------------------------
*/
#define        AUTO_MEMORY_CONFIG
#define        DIMM_READ_ADDR 0xAB
#define        DIMM_WRITE_ADDR 0xAA

/*
!-------------------------------------------------------------------------------
! PLL settings for 266MHz CPU, 133MHz PLB/SDRAM, 66MHz EBC, 33MHz PCI,
! assuming a 33MHz input clock to the 405EP from the C9531.
!-------------------------------------------------------------------------------
*/
#define PLLMR0_DEFAULT   PLLMR0_266_133_66
#define PLLMR1_DEFAULT   PLLMR1_266_133_66

#endif
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/
/*----------------------------------------------------------------------------*/

/*#define CFG_ENV_IS_IN_FLASH     1*/	/* use FLASH for environment vars	*/
#define CFG_ENV_IS_IN_NVRAM	1	/* use NVRAM for environment vars	*/

#ifdef CFG_ENV_IS_IN_NVRAM
#undef CFG_ENV_IS_IN_FLASH
#else
#ifdef CFG_ENV_IS_IN_FLASH
#undef CFG_ENV_IS_IN_NVRAM
#endif
#endif

#define CONFIG_BAUDRATE		115200
#define CONFIG_BOOTDELAY	3	/* autoboot after 3 seconds	*/

#if 1
#define CONFIG_BOOTCOMMAND	"" /* autoboot command	*/
#else
#define CONFIG_BOOTCOMMAND	"bootp" /* autoboot command		*/
#endif

/* Size (bytes) of interrupt driven serial port buffer.
 * Set to 0 to use polling instead of interrupts.
 * Setting to 0 will also disable RTS/CTS handshaking.
 */
#if 0
#define CONFIG_SERIAL_SOFTWARE_FIFO 4000
#else
#undef	CONFIG_SERIAL_SOFTWARE_FIFO
#endif

#if 0
#define CONFIG_BOOTARGS		"root=/dev/nfs "                        \
    "ip=192.168.2.176:192.168.2.190:192.168.2.79:255.255.255.0 "        \
    "nfsroot=192.168.2.190:/home/stefan/cpci405/target_ftest4"
#else
#define CONFIG_BOOTARGS		"root=/dev/hda1 "			\
   "ip=192.168.2.176:192.168.2.190:192.168.2.79:255.255.255.0"

#endif

#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
#define CFG_LOADS_BAUD_CHANGE	1	/* allow baudrate change	*/

#define CONFIG_MII		1	/* MII PHY management		*/
#define	CONFIG_PHY_ADDR		1	/* PHY address			*/

#define CONFIG_RTC_DS174x	1	/* use DS1743 RTC in Bubinga	*/

/*
#ifndef __DEBUG_START_FROM_SRAM__
#define CONFIG_COMMANDS	       (CONFIG_CMD_DFL	| \
				CFG_CMD_PCI	| \
				CFG_CMD_IRQ	| \
				CFG_CMD_KGDB	| \
				CFG_CMD_DHCP	| \
				CFG_CMD_DATE	| \
				CFG_CMD_BEDBUG	| \
				CFG_CMD_ELF	)
#else
#define CONFIG_COMMANDS	       (CONFIG_CMD_DFL	| \
				CFG_CMD_PCI	| \
				CFG_CMD_IRQ	| \
				CFG_CMD_KGDB	| \
				CFG_CMD_DHCP	| \
				CFG_CMD_DATE	| \
				CFG_CMD_DATE	| \
				CFG_CMD_ELF	)
#endif
*/

#define CONFIG_COMMANDS	       (CONFIG_CMD_DFL	| \
				CFG_CMD_PCI	| \
				CFG_CMD_IRQ	| \
				CFG_CMD_KGDB	| \
				CFG_CMD_DHCP	| \
				CFG_CMD_DATE	| \
				CFG_CMD_DATE	| \
				CFG_CMD_ELF	)

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

#undef CONFIG_WATCHDOG			/* watchdog disabled		*/

#define CONFIG_SPD_EEPROM      1       /* use SPD EEPROM for setup    */

/*
 * Miscellaneous configurable options
 */
#define CFG_LONGHELP			/* undef to save memory		*/
#define CFG_PROMPT	"=> "		/* Monitor Command Prompt	*/
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#define	CFG_CBSIZE	1024		/* Console I/O Buffer Size	*/
#else
#define	CFG_CBSIZE	256		/* Console I/O Buffer Size	*/
#endif
#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.
 */
#undef  CFG_EXT_SERIAL_CLOCK           /* external serial clock */
#undef  CFG_405_UART_ERRATA_59         /* 405GP/CR Rev. D silicon */
#define CFG_BASE_BAUD       691200

/* 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		0x100000	/* default load address */
#define CFG_EXTBDINFO		1	/* To use extended board_into (bd_t) */

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

#define CONFIG_HARD_I2C		1	/* I2C with hardware support	*/
#undef  CONFIG_SOFT_I2C			/* I2C bit-banged		*/
#define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
#define CFG_I2C_SLAVE		0x7F


/*-----------------------------------------------------------------------
 * PCI stuff
 *-----------------------------------------------------------------------