ppmc8260.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]>
 *
 * Configuation settings for the WindRiver PPMC8260 board.
 *
 * 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

/*****************************************************************************
 *
 * 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
 * -------   ----------	 ---	---    ----  -----  -----  -----
 * 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_PPMC_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_PPMC_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/ppmc8260/config.mk
 * The main FLASH is whichever is connected to *CS0. U-Boot expects
 * this to be the SIMM.
 */
#define CFG_FLASH0_BASE 0xFE000000
#define CFG_FLASH0_SIZE 16

/* What should be the base address of the first SDRAM DIMM and how big is
 * it (in Mbytes)?
*/
#define CFG_SDRAM0_BASE 0x00000000
#define CFG_SDRAM0_SIZE 128

/* What should be the base address of the second SDRAM DIMM and how big is
 * it (in Mbytes)?
*/
#define CFG_SDRAM1_BASE 0x08000000
#define CFG_SDRAM1_SIZE 128

/* What should be the base address of the on board SDRAM and how big is
 * it (in Mbytes)?
*/
#define CFG_SDRAM2_BASE 0x38000000
#define CFG_SDRAM2_SIZE 16

/* What should be the base address of the MAILBOX  and how big is it
 * (in Bytes)
 * The eeprom lives at CFG_MAILBOX_BASE + 0x80000000
 */
#define CFG_MAILBOX_BASE 0x32000000
#define CFG_MAILBOX_SIZE 8192

/* What is the base address of the I/O select lines and how big is it
 * (In Mbytes)?
 */

#define CFG_IOSELECT_BASE 0xE0000000
#define CFG_IOSELECT_SIZE 32


/* 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 0xF1000000

/*
 * PPMC8260 with 256 16 MB DIMM:
 *
 *     0x0000 0000     Exception Vector code, 8k
 *	     :
 *     0x0000 1FFF
 *     0x0000 2000     Free for Application Use
 *	     :
 *	     :
 *
 *	     :
 *	     :
 *     0x0FF5 FF30     Monitor Stack (Growing downward)
 *		       Monitor Stack Buffer (0x80)
 *     0x0FF5 FFB0     Board Info Data
 *     0x0FF6 0000     Malloc Arena
 *	     :		    CFG_ENV_SECT_SIZE, 256k
 *	     :		    CFG_MALLOC_LEN,    128k
 *     0x0FFC 0000     RAM Copy of Monitor Code
 *	     :		    CFG_MONITOR_LEN,   256k
 *     0x0FFF 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.
 * The console can be on SMC1 or SMC2
 */
#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 if ethernet on SCC	*/
#define CONFIG_ETHER_ON_FCC		/* define if ethernet on FCC	*/
#undef	CONFIG_ETHER_NONE		/* define if ethernet on neither */
#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)


/* 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 */

#define CONFIG_ETHADDR		00:a0:1e:90:2b:00

/* 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.
 */
#define CONFIG_MISC_INIT_R

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

#if 0
/* Be selective on what keys can delay or stop the autoboot process
 *     To stop	use: " "
 */
# define 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 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)

/* undef this to save memory */
#define CFG_LONGHELP

/* Monitor Command Prompt */
#define CFG_PROMPT		"=> "

/* What U-Boot subsytems do you want enabled? */
#define CONFIG_COMMANDS		(((CONFIG_CMD_DFL & ~(CFG_CMD_KGDB))) | \
				CFG_CMD_ELF	| \
				CFG_CMD_ASKENV	| \
				CFG_CMD_ECHO	| \
				CFG_CMD_REGINFO | \
				CFG_CMD_MEMTEST | \
				CFG_CMD_MII	| \
				CFG_CMD_IMMAP)


/* Where do the internal registers live? */
#define CFG_IMMR		0xf0000000

/*****************************************************************************
 *
 * You should not have to modify any of the following settings
 *
 *****************************************************************************/

#define CONFIG_MPC8260		1	/* This is an MPC8260 CPU   */
#define CONFIG_PPMC8260		1	/* on an Wind River PPMC8260 Board  */

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

/*
 * Miscellaneous configurable options
 */
#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

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

#define CFG_MAXARGS		32	/* max number of command args	*/

#define CFG_BARGSIZE		CFG_CBSIZE /* Boot Argument Buffer Size	   */

#define CFG_LOAD_ADDR		0x140000   /* default load address */
#define CFG_HZ			1000	/* decrementer freq: 1 ms ticks */

#define CFG_MEMTEST_START	0x2000	/* memtest works from the end of */
					/* the exception vector table */
					/* to the end of the DRAM  */
					/* less monitor and malloc area */
#define CFG_STACK_USAGE		0x10000 /* Reserve 64k for the stack usage */
#define CFG_MEM_END_USAGE	( CFG_MONITOR_LEN \
				+ CFG_MALLOC_LEN \
				+ CFG_ENV_SECT_SIZE \
				+ CFG_STACK_USAGE )

#define CFG_MEMTEST_END		( CFG_SDRAM_SIZE * 1024 * 1024 \
				- CFG_MEM_END_USAGE )