sbc8260.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
 * Murray Jensen <[e-mail]>
 *
 * (C) Copyright 2000
 * Sysgo Real-Time Solutions, GmbH <www.elinos.com>
 * Marius Groeger <[e-mail]>
 *
 * (C) Copyright 2001
 * Advent Networks, Inc. <http://www.adventnetworks.com>
 * Jay Monkman <[e-mail]>
 *
 * Configuration settings for the WindRiver SBC8260 board.
 *	See http://www.windriver.com/products/html/sbc8260.html
 *
 * 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

/* Enable debug prints */
#undef DEBUG		      /* General debug */
#undef DEBUG_BOOTP_EXT	      /* Debug received vendor fields */

/*****************************************************************************
 *
 * These settings must match the way _your_ board is set up
 *
 *****************************************************************************/

/* What is the oscillator's (UX2) frequency in Hz? */
#define CONFIG_8260_CLKIN  (66 * 1000 * 1000)

/*-----------------------------------------------------------------------
 * MODCK_H & MODCLK[1-3] - Ref: Section 9.2 in MPC8206 User Manual
 *-----------------------------------------------------------------------
 * What should MODCK_H be? It is dependent on the oscillator
 * frequency, MODCK[1-3], and desired CPM and core frequencies.
 * Here are some example values (all frequencies are in MHz):
 *
 * MODCK_H   MODCK[1-3]	 Osc	CPM    Core  S2-6   S2-7   S2-8
 * -------   ----------	 ---	---    ----  -----  -----  -----
 * 0x1	     0x5	 33	100    133   Open   Close  Open
 * 0x1	     0x6	 33	100    166   Open   Open   Close
 * 0x1	     0x7	 33	100    200   Open   Open   Open
 *
 * 0x2	     0x2	 33	133    133   Close  Open   Close
 * 0x2	     0x3	 33	133    166   Close  Open   Open
 * 0x2	     0x4	 33	133    200   Open   Close  Close
 * 0x2	     0x5	 33	133    233   Open   Close  Open
 * 0x2	     0x6	 33	133    266   Open   Open   Close
 *
 * 0x5	     0x5	 66	133    133   Open   Close  Open
 * 0x5	     0x6	 66	133    166   Open   Open   Close
 * 0x5	     0x7	 66	133    200   Open   Open   Open
 * 0x6	     0x0	 66	133    233   Close  Close  Close
 * 0x6	     0x1	 66	133    266   Close  Close  Open
 * 0x6	     0x2	 66	133    300   Close  Open   Close
 */
#define CFG_SBC_MODCK_H 0x05

/* Define this if you want to boot from 0x00000100. If you don't define
 * this, you will need to program the bootloader to 0xfff00000, and
 * get the hardware reset config words at 0xfe000000. The simplest
 * way to do that is to program the bootloader at both addresses.
 * It is suggested that you just let U-Boot live at 0x00000000.
 */
#define CFG_SBC_BOOT_LOW 1

/* What should the base address of the main FLASH be and how big is
 * it (in MBytes)? This must contain TEXT_BASE from board/sbc8260/config.mk
 * The main FLASH is whichever is connected to *CS0. U-Boot expects
 * this to be the SIMM.
 */
#define CFG_FLASH0_BASE 0x40000000
#define CFG_FLASH0_SIZE 4

/* What should the base address of the secondary FLASH be and how big
 * is it (in Mbytes)? The secondary FLASH is whichever is connected
 * to *CS6. U-Boot expects this to be the on board FLASH. If you don't
 * want it enabled, don't define these constants.
 */
#define CFG_FLASH1_BASE 0x60000000
#define CFG_FLASH1_SIZE 2

/* What should be the base address of SDRAM DIMM and how big is
 * it (in Mbytes)?
*/
#define CFG_SDRAM0_BASE 0x00000000
#define CFG_SDRAM0_SIZE 64

/* What should be the base address of the LEDs and switch S0?
 * If you don't want them enabled, don't define this.
 */
#define CFG_LED_BASE 0xa0000000


/*
 * SBC8260 with 16 MB DIMM:
 *
 *     0x0000 0000     Exception Vector code, 8k
 *	     :
 *     0x0000 1FFF
 *     0x0000 2000     Free for Application Use
 *	     :
 *	     :
 *
 *	     :
 *	     :
 *     0x00F5 FF30     Monitor Stack (Growing downward)
 *		       Monitor Stack Buffer (0x80)
 *     0x00F5 FFB0     Board Info Data
 *     0x00F6 0000     Malloc Arena
 *	     :		    CFG_ENV_SECT_SIZE, 256k
 *	     :		    CFG_MALLOC_LEN,    128k
 *     0x00FC 0000     RAM Copy of Monitor Code
 *	     :		    CFG_MONITOR_LEN,   256k
 *     0x00FF FFFF     [End of RAM], CFG_SDRAM_SIZE - 1
 */

/*
 * SBC8260 with 64 MB DIMM:
 *
 *     0x0000 0000     Exception Vector code, 8k
 *	     :
 *     0x0000 1FFF
 *     0x0000 2000     Free for Application Use
 *	     :
 *	     :
 *
 *	     :
 *	     :
 *     0x03F5 FF30     Monitor Stack (Growing downward)
 *		       Monitor Stack Buffer (0x80)
 *     0x03F5 FFB0     Board Info Data
 *     0x03F6 0000     Malloc Arena
 *	     :		    CFG_ENV_SECT_SIZE, 256k
 *	     :		    CFG_MALLOC_LEN,    128k
 *     0x03FC 0000     RAM Copy of Monitor Code
 *	     :		    CFG_MONITOR_LEN,   256k
 *     0x03FF FFFF     [End of RAM], CFG_SDRAM_SIZE - 1
 */


/*
 * 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.
 */
#define CONFIG_CONS_ON_SMC	1	/* define if console on SMC */
#undef	CONFIG_CONS_ON_SCC		/* define if console on SCC */
#undef	CONFIG_CONS_NONE		/* define if console on neither */
#define CONFIG_CONS_INDEX	1	/* which SMC/SCC channel for console */

/*
 * 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 CONFIG_ETHER_ON_FCC
#undef	CONFIG_ETHER_NONE		/* define if ethernet on neither */

#ifdef	CONFIG_ETHER_ON_SCC
#define CONFIG_ETHER_INDEX	1	/* which SCC/FCC channel for ethernet */
#endif	/* CONFIG_ETHER_ON_SCC */

#ifdef	CONFIG_ETHER_ON_FCC
#define CONFIG_ETHER_INDEX	2	/* which SCC/FCC channel for ethernet */
#define CONFIG_MII			/* MII PHY management		*/
#define CONFIG_BITBANGMII		/* bit-bang MII PHY management	*/
/*
 * Port pins used for bit-banged MII communictions (if applicable).
 */
#define MDIO_PORT	2	/* Port C */
#define MDIO_ACTIVE	(iop->pdir |=  0x00400000)
#define MDIO_TRISTATE	(iop->pdir &= ~0x00400000)
#define MDIO_READ	((iop->pdat &  0x00400000) != 0)

#define MDIO(bit)	if(bit) iop->pdat |=  0x00400000; \
			else	iop->pdat &= ~0x00400000

#define MDC(bit)	if(bit) iop->pdat |=  0x00200000; \
			else	iop->pdat &= ~0x00200000

#define MIIDELAY	udelay(1)
#endif	/* CONFIG_ETHER_ON_FCC */

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

/*
 *  - RX clk is CLK11
 *  - TX clk is CLK12
 */
# define CFG_CMXSCR_VALUE	(CMXSCR_RS1CS_CLK11  | CMXSCR_TS1CS_CLK12)

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

/*
 * - Rx-CLK is CLK13
 * - Tx-CLK is CLK14
 * - Select bus for bd/buffers (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 */

/*
 * Select SPI support configuration
 */
#undef  CONFIG_SPI			/* Disable SPI driver */

/*
 * Select i2c support configuration
 *
 * Supported configurations are {none, software, hardware} drivers.
 * If the software driver is chosen, there are some additional
 * configuration items that the driver uses to drive the port pins.
 */
#undef  CONFIG_HARD_I2C			/* I2C with hardware support	*/
#define CONFIG_SOFT_I2C		1	/* I2C bit-banged		*/
#define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
#define CFG_I2C_SLAVE		0x7F

/*
 * Software (bit-bang) I2C driver configuration
 */
#ifdef CONFIG_SOFT_I2C
#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 */
#endif /* CONFIG_SOFT_I2C */


/* Define this to reserve an entire FLASH sector (256 KB) for
 * environment variables. Otherwise, the environment will be
 * put in the same sector as U-Boot, and changing variables
 * will erase U-Boot temporarily
 */
#define CFG_ENV_IN_OWN_SECT	1

/* Define to allow the user to overwrite serial and ethaddr */
#define CONFIG_ENV_OVERWRITE

/* What should the console's baud rate be? */
#define CONFIG_BAUDRATE		9600

/* Ethernet MAC address 
 *     Note: We are using the EST Corporation OUI (00:a0:1e:xx:xx:xx)
 *           http://standards.ieee.org/regauth/oui/index.shtml
 */
#define CONFIG_ETHADDR		00:a0:1e:a8:7b:cb

/*
 * Define this to set the last octet of the ethernet address from the
 * DS0-DS7 switch and light the LEDs with the result. The DS0-DS7
 * switch and the LEDs are backwards with respect to each other. DS7
 * is on the board edge side of both the LED strip and the DS0-DS7
 * switch.
 */
#undef	CONFIG_MISC_INIT_R

/* Set to a positive value to delay for running BOOTCOMMAND */
#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds */

/* Be selective on what keys can delay or stop the autoboot process
 *     To stop	use: " "
 */
#undef CONFIG_AUTOBOOT_KEYED
#ifdef CONFIG_AUTOBOOT_KEYED
#   define CONFIG_AUTOBOOT_PROMPT	"Autobooting in %d seconds, press \" \" to stop\n"
#   define CONFIG_AUTOBOOT_STOP_STR	" "
#   undef  CONFIG_AUTOBOOT_DELAY_STR
#   define DEBUG_BOOTKEYS		0
#endif

/* Define this to contain any number of null terminated strings that
 * will be part of the default enviroment compiled into the boot image.
 * 
 * Variable		Usage
 * --------------       -------------------------------------------------------
 * serverip		server IP address 
 * ipaddr		my IP address
 * reprog		Reload flash with a new copy of U-Boot
 * zapenv		Erase the environment area in flash
 * root-on-initrd       Set the bootcmd variable to allow booting of an initial
 *                      ram disk.
 * root-on-nfs          Set the bootcmd variable to allow booting of a NFS 
 *                      mounted root filesystem.
 * boot-hook            Convenient stub to do something useful before the 
 *                      bootm command is executed.
 * 
 * Example usage of root-on-initrd and root-on-nfs :
 *
 * Note: The lines have been wrapped to improved its readability.
 *
 * => printenv bootcmd
 * bootcmd=version;echo;bootp;setenv bootargs root=/dev/nfs rw
 * nfsroot=$(serverip):$(rootpath) 
 * ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;run boot-hook;bootm
 *
 * => run root-on-initrd
 * => printenv bootcmd
 * bootcmd=version;echo;bootp;setenv bootargs root=/dev/ram0 rw
 * ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;run boot-hook;bootm
 * 
 * => run root-on-nfs
 * => printenv bootcmd
 * bootcmd=version;echo;bootp;setenv bootargs root=/dev/nfs rw
 * nfsroot=$(serverip):$(rootpath) 
 * ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;run boot-hook;bootm
 *
 */
#define CONFIG_EXTRA_ENV_SETTINGS \
	"serverip=192.168.123.201\0" \
	"ipaddr=192.168.123.203\0" \