mpc8266ads.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 2001
 * Stuart Hughes <[e-mail]>
 * This file is based on similar values for other boards found in other
 * U-Boot config files, and some that I found in the mpc8260ads manual.
 *
 * Note: my board is a PILOT rev.
 * Note: the mpc8260ads doesn't come with a proper Ethernet MAC address.
 *
 * 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
 */

/*
 * Config header file for a MPC8266ADS Pilot 16M Ram Simm, 8Mbytes Flash Simm
 */

/* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
   !!                                                                 !!
   !!  This configuration requires JP3 to be in position 1-2 to work  !!
   !!  To make it work for the default, the TEXT_BASE define in       !!
   !!  board/mpc8266ads/config.mk must be changed from 0xfe000000 to  !!
   !!  0xfff00000						      !!
   !!  The CFG_HRCW_MASTER define below must also be changed to match !!
   !!                                                                 !!
   !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 
 */

#ifndef __CONFIG_H
#define __CONFIG_H

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

#define CONFIG_MPC8260		1	/* This is an MPC8260 CPU   */
#define CONFIG_MPC8266ADS	1	/* ...on motorola ads board */

#define CONFIG_BOARD_PRE_INIT	1	/* Call board_pre_init	*/

/* allow serial and ethaddr to be overwritten */
#define CONFIG_ENV_OVERWRITE

/*
 * 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 */

/*
 * 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	2	/* which channel for ether  */
#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)

#if (CONFIG_ETHER_INDEX == 2)

/*
 * - Rx-CLK is CLK13
 * - Tx-CLK is CLK14
 * - Select bus for bd/buffers (see 28-13)
 * - Half duplex
 */
# 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_INDEX */

/* other options */
#define CONFIG_HARD_I2C		1	/* To enable I2C support	*/
#define CFG_I2C_SPEED		400000	/* I2C speed and slave address	*/
#define CFG_I2C_SLAVE		0x7F
#define CFG_I2C_EEPROM_ADDR_LEN 1

/* PCI */
#define CONFIG_PCI
#define CONFIG_PCI_PNP
#define CONFIG_PCI_BOOTDELAY 0
#undef CONFIG_PCI_SCAN_SHOW

/*-----------------------------------------------------------------------
 * Definitions for Serial Presence Detect EEPROM address
 * (to get SDRAM settings)
 */
#define SPD_EEPROM_ADDRESS      0x50


#define CONFIG_8260_CLKIN	66000000	/* in Hz */
#define CONFIG_BAUDRATE		115200


#define CONFIG_COMMANDS		(CFG_CMD_ALL & ~( \
				 CFG_CMD_BEDBUG | \
				 CFG_CMD_BMP	| \
				 CFG_CMD_BSP	| \
				 CFG_CMD_DATE	| \
				 CFG_CMD_DHCP   | \
				 CFG_CMD_DOC	| \
				 CFG_CMD_DTT	| \
				 CFG_CMD_EEPROM | \
				 CFG_CMD_ELF    | \
				 CFG_CMD_FDC	| \
				 CFG_CMD_FDOS	| \
				 CFG_CMD_HWFLOW	| \
				 CFG_CMD_IDE	| \
				 CFG_CMD_JFFS2	| \
				 CFG_CMD_KGDB	| \
				 CFG_CMD_MMC	| \
				 CFG_CMD_NAND	| \
				 CFG_CMD_PCMCIA | \
				 CFG_CMD_SCSI	| \
				 CFG_CMD_SPI	| \
				 CFG_CMD_VFD	| \
				 CFG_CMD_USB	) )

/* Define a command string that is automatically executed when no character
 * is read on the console interface withing "Boot Delay" after reset.
 */
#define CONFIG_BOOT_ROOT_INITRD 0	/* Use ram disk for the root file system */
#define CONFIG_BOOT_ROOT_NFS	1	/* Use a NFS mounted root file system */

#if CONFIG_BOOT_ROOT_INITRD
#define CONFIG_BOOTCOMMAND \
	"version;" \
	"echo;" \
	"bootp;" \
	"setenv bootargs root=/dev/ram0 rw " \
	"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;" \
	"bootm"
#endif /* CONFIG_BOOT_ROOT_INITRD */

#if CONFIG_BOOT_ROOT_NFS
#define CONFIG_BOOTCOMMAND \
	"version;" \
	"echo;" \
	"bootp;" \
	"setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) " \
	"ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off;" \
	"bootm"
#endif /* CONFIG_BOOT_ROOT_NFS */

/* Add support for a few extra bootp options like:
 *	- File size
 *	- DNS
 */
#define CONFIG_BOOTP_MASK	(CONFIG_BOOTP_DEFAULT | \
				 CONFIG_BOOTP_BOOTFILESIZE | \
				 CONFIG_BOOTP_DNS)

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


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

#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#undef	CONFIG_KGDB_ON_SMC		/* define if kgdb on SMC */
#define CONFIG_KGDB_ON_SCC		/* define if kgdb on SCC */
#undef	CONFIG_KGDB_NONE		/* define if kgdb on something else */
#define CONFIG_KGDB_INDEX	2	/* which serial channel for kgdb */
#define CONFIG_KGDB_BAUDRATE	115200	/* speed to run kgdb serial port at */
#endif

#undef	CONFIG_WATCHDOG			/* disable platform specific watchdog */

/*
 * 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	0x00100000	/* memtest works on */
#define CFG_MEMTEST_END		0x00f00000	/* 1 ... 15 MB in DRAM	*/

#undef CONFIG_CLOCKS_IN_MHZ		/* clocks passsed to Linux in MHz */
					/* for versions < 2.4.5-pre5	*/

#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, 230400 }

#define CFG_FLASH_BASE		0xFE000000
#define FLASH_BASE		0xFE000000
#define CFG_MAX_FLASH_BANKS	1	/* max num of memory banks	*/
#define CFG_MAX_FLASH_SECT	32	/* max num of sects on one chip */
#define CFG_FLASH_SIZE		8
#define CFG_FLASH_ERASE_TOUT	8000	/* Timeout for Flash Erase (in ms)    */
#define CFG_FLASH_WRITE_TOUT	5	/* Timeout for Flash Write (in ms)    */

#undef	CFG_FLASH_CHECKSUM

/* this is stuff came out of the Motorola docs */
/* Only change this if you also change the Hardware configuration Word */
#define CFG_DEFAULT_IMMR	0x0F010000

/* Set IMMR to 0xF0000000 or above to boot Linux  */
#define CFG_IMMR		0xF0000000
#define CFG_BCSR		0xF8000000
#define CFG_PCI_INT		0xF8200000	/* PCI interrupt controller */

/* Define CONFIG_VERY_BIG_RAM to allow use of SDRAMs larger than 256MBytes
 */
/*#define CONFIG_VERY_BIG_RAM	1*/

/* What should be the base address of SDRAM DIMM and how big is
 * it (in Mbytes)?  This will normally auto-configure via the SPD.
*/
#define CFG_SDRAM_BASE 0x00000000
#define CFG_SDRAM_SIZE 16

#define SDRAM_SPD_ADDR 0x50


/*-----------------------------------------------------------------------
 * BR2,BR3 - Base Register
 *     Ref: Section 10.3.1 on page 10-14
 * OR2,OR3 - Option Register
 *     Ref: Section 10.3.2 on page 10-16
 *-----------------------------------------------------------------------
 */