cpu86.h

u-boot-1.1.6 源码包

/*
 * (C) Copyright 2001-2005
 * 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

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

#define CONFIG_MPC8260		1	/* This is an MPC8260 CPU		*/
#define CONFIG_CPU86		1	/* ...on a CPU86 board	*/
#define CONFIG_CPM2		1	/* Has a CPM2 */

/*
 * select serial console configuration
 *
 * if either CONFIG_CONS_ON_SMC or CONFIG_CONS_ON_SCC is selected, then
 * CONFIG_CONS_INDEX must be set to the channel number (1-2 for SMC, 1-4
 * for SCC).
 *
 * if CONFIG_CONS_NONE is defined, then the serial console routines must
 * defined elsewhere (for example, on the cogent platform, there are serial
 * ports on the motherboard which are used for the serial console - see
 * cogent/cma101/serial.[ch]).
 */
#undef  CONFIG_CONS_ON_SMC		/* define if console on SMC */
#define CONFIG_CONS_ON_SCC		/* define if console on SCC */
#undef  CONFIG_CONS_NONE		/* define if console on something else*/
#define CONFIG_CONS_INDEX	1	/* which serial channel for console */

#if defined(CONFIG_CONS_NONE) || defined(CONFIG_CONS_USE_EXTC)
#define CONFIG_BAUDRATE		230400
#else
#define CONFIG_BAUDRATE		9600
#endif

/*
 * select ethernet configuration
 *
 * if either CONFIG_ETHER_ON_SCC or CONFIG_ETHER_ON_FCC is selected, then
 * CONFIG_ETHER_INDEX must be set to the channel number (1-4 for SCC, 1-3
 * for FCC)
 *
 * if CONFIG_ETHER_NONE is defined, then either the ethernet routines must be
 * defined elsewhere (as for the console), or CFG_CMD_NET must be removed
 * from CONFIG_COMMANDS to remove support for networking.
 *
 */
#undef	CONFIG_ETHER_ON_SCC		/* define if ether on SCC       */
#define	CONFIG_ETHER_ON_FCC		/* define if ether on FCC       */
#undef	CONFIG_ETHER_NONE		/* define if ether on something else */
#define	CONFIG_ETHER_INDEX	1	/* which SCC/FCC channel for ethernet */

#if defined(CONFIG_ETHER_ON_FCC) && (CONFIG_ETHER_INDEX == 1)

/*
 * - Rx-CLK is CLK11
 * - Tx-CLK is CLK12
 * - RAM for BD/Buffers is on the 60x Bus (see 28-13)
 * - Enable Full Duplex in FSMR
 */
# define CFG_CMXFCR_MASK	(CMXFCR_FC1|CMXFCR_RF1CS_MSK|CMXFCR_TF1CS_MSK)
# define CFG_CMXFCR_VALUE	(CMXFCR_RF1CS_CLK11|CMXFCR_TF1CS_CLK12)
# define CFG_CPMFCR_RAMTYPE	0
# define CFG_FCC_PSMR		(FCC_PSMR_FDE|FCC_PSMR_LPB)

#elif defined(CONFIG_ETHER_ON_FCC) && (CONFIG_ETHER_INDEX == 2)

/*
 * - Rx-CLK is CLK13
 * - Tx-CLK is CLK14
 * - RAM for BD/Buffers is on the 60x Bus (see 28-13)
 * - Enable Full Duplex in FSMR
 */
# define CFG_CMXFCR_MASK	(CMXFCR_FC2|CMXFCR_RF2CS_MSK|CMXFCR_TF2CS_MSK)
# define CFG_CMXFCR_VALUE	(CMXFCR_RF2CS_CLK13|CMXFCR_TF2CS_CLK14)
# define CFG_CPMFCR_RAMTYPE	0
# define CFG_FCC_PSMR		(FCC_PSMR_FDE|FCC_PSMR_LPB)

#endif /* CONFIG_ETHER_ON_FCC, CONFIG_ETHER_INDEX */

/* system clock rate (CLKIN) - equal to the 60x and local bus speed */
#define CONFIG_8260_CLKIN	64000000	/* in Hz */

#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/

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

#undef	CONFIG_BOOTARGS
#define CONFIG_BOOTCOMMAND							\
	"bootp; " 								\
	"setenv bootargs root=/dev/nfs rw nfsroot=${serverip}:${rootpath} " 	\
	"ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}::off; " 	\
	"bootm"

/*-----------------------------------------------------------------------
 * I2C/EEPROM/RTC configuration
 */
#define	CONFIG_SOFT_I2C			/* Software I2C support enabled	*/

# define CFG_I2C_SPEED		50000
# define CFG_I2C_SLAVE		0xFE
/*
 * Software (bit-bang) I2C driver configuration
 */
#define I2C_PORT	3		/* Port A=0, B=1, C=2, D=3 */
#define I2C_ACTIVE	(iop->pdir |=  0x00010000)
#define I2C_TRISTATE	(iop->pdir &= ~0x00010000)
#define I2C_READ	((iop->pdat & 0x00010000) != 0)
#define I2C_SDA(bit)	if(bit) iop->pdat |=  0x00010000; \
			else    iop->pdat &= ~0x00010000
#define I2C_SCL(bit)	if(bit) iop->pdat |=  0x00020000; \
			else    iop->pdat &= ~0x00020000
#define I2C_DELAY	udelay(5)	/* 1/4 I2C clock duration */

#define CONFIG_RTC_PCF8563
#define CFG_I2C_RTC_ADDR	0x51

#undef	CONFIG_WATCHDOG			/* watchdog disabled		*/

/*-----------------------------------------------------------------------
 * Disk-On-Chip configuration
 */

#define CFG_MAX_DOC_DEVICE	1	/* Max number of DOC devices	*/

#define CFG_DOC_SUPPORT_2000
#define CFG_DOC_SUPPORT_MILLENNIUM

/*-----------------------------------------------------------------------
 * Miscellaneous configuration options
 */

#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
#undef	CFG_LOADS_BAUD_CHANGE		/* don't allow baudrate change	*/

#define CONFIG_BOOTP_MASK	(CONFIG_BOOTP_DEFAULT|CONFIG_BOOTP_BOOTFILESIZE)

#define CONFIG_COMMANDS	       (CONFIG_CMD_DFL	| \
				CFG_CMD_BEDBUG	| \
				CFG_CMD_DATE	| \
				CFG_CMD_DHCP	| \
				CFG_CMD_DOC	| \
				CFG_CMD_EEPROM	| \
				CFG_CMD_I2C	| \
				CFG_CMD_NFS	| \
				CFG_CMD_SNTP	)

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

/*
 * 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	*/

#define	CFG_LOAD_ADDR	0x100000	/* default load address	*/

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

#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }

#define	CFG_RESET_ADDRESS 0xFFF00100	/* "bad" address		*/

/*
 * For booting Linux, the board info and command line data
 * have to be in the first 8 MB of memory, since this is
 * the maximum mapped by the Linux kernel during initialization.
 */
#define CFG_BOOTMAPSZ		(8 << 20) /* Initial Memory map for Linux */

/*-----------------------------------------------------------------------
 * Flash configuration
 */

#define CFG_BOOTROM_BASE	0xFF800000
#define CFG_BOOTROM_SIZE	0x00080000
#define CFG_FLASH_BASE		0xFF000000
#define CFG_FLASH_SIZE		0x00800000

/*-----------------------------------------------------------------------
 * FLASH organization
 */
#define CFG_MAX_FLASH_BANKS	2	/* max num of memory banks      */
#define CFG_MAX_FLASH_SECT	128	/* max num of sects on one chip */

#define CFG_FLASH_ERASE_TOUT	240000	/* Flash Erase Timeout (in ms)  */
#define CFG_FLASH_WRITE_TOUT	500	/* Flash Write Timeout (in ms)  */

/*-----------------------------------------------------------------------
 * Other areas to be mapped
 */

/* CS3: Dual ported SRAM */
#define CFG_DPSRAM_BASE		0x40000000
#define CFG_DPSRAM_SIZE		0x00020000

/* CS4: DiskOnChip */
#define CFG_DOC_BASE		0xF4000000
#define CFG_DOC_SIZE		0x00100000

/* CS5: FDC37C78 controller */
#define CFG_FDC37C78_BASE	0xF1000000
#define CFG_FDC37C78_SIZE	0x00100000

/* CS6: Board configuration registers */
#define CFG_BCRS_BASE		0xF2000000
#define CFG_BCRS_SIZE		0x00010000

/* CS7: VME Extended Access Range */
#define CFG_VMEEAR_BASE		0x80000000
#define CFG_VMEEAR_SIZE		0x01000000

/* CS8: VME Standard Access Range */
#define CFG_VMESAR_BASE		0xFE000000
#define CFG_VMESAR_SIZE		0x01000000

/* CS9: VME Short I/O Access Range */
#define CFG_VMESIOAR_BASE	0xFD000000
#define CFG_VMESIOAR_SIZE	0x01000000

/*-----------------------------------------------------------------------
 * Hard Reset Configuration Words
 *
 * if you change bits in the HRCW, you must also change the CFG_*
 * defines for the various registers affected by the HRCW e.g. changing
 * HRCW_DPPCxx requires you to also change CFG_SIUMCR.
 */
#if defined(CONFIG_BOOT_ROM)
#define CFG_HRCW_MASTER		(HRCW_CIP | HRCW_ISB100 | HRCW_BMS | \
				 HRCW_BPS01 | HRCW_CS10PC01)
#else
#define CFG_HRCW_MASTER		(HRCW_CIP | HRCW_ISB100 | HRCW_BMS | HRCW_CS10PC01)
#endif

/* no slaves so just fill with zeros */
#define CFG_HRCW_SLAVE1		0
#define CFG_HRCW_SLAVE2		0
#define CFG_HRCW_SLAVE3		0
#define CFG_HRCW_SLAVE4		0
#define CFG_HRCW_SLAVE5		0
#define CFG_HRCW_SLAVE6		0
#define CFG_HRCW_SLAVE7		0

/*-----------------------------------------------------------------------
 * Internal Memory Mapped Register
 */
#define CFG_IMMR		0xF0000000

/*-----------------------------------------------------------------------
 * Definitions for initial stack pointer and data area (in DPRAM)
 */
#define CFG_INIT_RAM_ADDR	CFG_IMMR
#define CFG_INIT_RAM_END	0x4000  /* End of used area in DPRAM    */
#define CFG_GBL_DATA_SIZE	128 /* size in bytes reserved for initial data*/
#define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
#define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET

/*-----------------------------------------------------------------------
 * Start addresses for the final memory configuration
 * (Set up by the startup code)
 * Please note that CFG_SDRAM_BASE _must_ start at 0
 *
 * 60x SDRAM is mapped at CFG_SDRAM_BASE.
 */
#define CFG_SDRAM_BASE		0x00000000
#define CFG_SDRAM_MAX_SIZE	0x08000000	/* max. 128 MB		*/
#define CFG_MONITOR_BASE	TEXT_BASE
#define CFG_MONITOR_LEN		(256 << 10)	/* Reserve 256 kB for Monitor */
#define CFG_MALLOC_LEN		(128 << 10)	/* Reserve 128 kB for malloc()*/

#if (CFG_MONITOR_BASE < CFG_FLASH_BASE)
# define CFG_RAMBOOT
#endif

#if 0
/* environment is in Flash */
#define CFG_ENV_IS_IN_FLASH	1
#ifdef CONFIG_BOOT_ROM
# define CFG_ENV_ADDR		(CFG_FLASH_BASE+0x70000)
# define CFG_ENV_SIZE		0x10000
# define CFG_ENV_SECT_SIZE	0x10000
#endif
#else
/* environment is in EEPROM */
#define CFG_ENV_IS_IN_EEPROM	1
#define CFG_I2C_EEPROM_ADDR	0x58	/* EEPROM X24C16		*/
#define CFG_I2C_EEPROM_ADDR_LEN	1