config_cogent_mpc8260.h

嵌入式ARM的一些源代码

/*
 * (C) Copyright 2000
 * Murray Jensen <[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
 */

/*
 * Config header file for Cogent platform using an MPC8xx CPU module
 */

#ifndef __CONFIG_H
#define __CONFIG_H

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

#define CONFIG_MPC8260		1	/* This is an MPC8260 CPU	*/
#define CONFIG_COGENT		1	/* using Cogent Modular Architecture */

/* Cogent Modular Architecture options */
#define CONFIG_CMA282		1	/* ...on a CMA282 CPU module	*/
#define CONFIG_CMA111		1	/* ...on a CMA111 motherboard	*/

/*
 * 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]).
 */
#define	CONFIG_CONS_ON_SMC		/* 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	*/
#undef	CONFIG_ETHER_ON_FCC		/* define if ethernet on FCC	*/
#define	CONFIG_ETHER_NONE		/* define if ethernet on neither */
#define CONFIG_ETHER_INDEX	1	/* which SCC/FCC channel for ethernet */

/* system clock rate (CLKIN) - equal to the 60x and local bus speed */
#define CONFIG_8260_CLKIN	66666666	/* in Hz */

#if 0
#define CONFIG_BAUDRATE		230400
#else
#define CONFIG_BAUDRATE		9600
#endif

#define CONFIG_COMMANDS		((CONFIG_CMD_DFL | CFG_CMD_KGDB) & ~CFG_CMD_NET)

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

#if 0
#define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
#else
#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
#endif
#define CONFIG_BOOTCOMMAND	"bootm 04080000 04200000" /* autoboot command*/

#define CONFIG_BOOTARGS		"root=/dev/ram rw"

#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#define CONFIG_KGDB_BAUDRATE	230400	/* speed to run kgdb serial port */
#define CONFIG_KGDB_SER_INDEX	2	/* which serial port to use */
#endif

#undef CONFIG_WATCHDOG			/* turn on 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	0x00400000	/* memtest works on	*/
#define CFG_MEMTEST_END		0x01c00000	/* 4 ... 28 MB in DRAM	*/

#define CFG_CLKS_IN_HZ	1		/* everything, incl board info, in Hz */

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

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

/*
 * Low Level Configuration Settings
 * (address mappings, register initial values, etc.)
 * You should know what you are doing if you make changes here.
 */

/*-----------------------------------------------------------------------
 * Low Level Cogent settings
 * if CFG_CMA_CONS_SERIAL is defined, make sure the 8260 CPM serial is not.
 * also, make sure CONFIG_CONS_INDEX is still defined - the index will be
 * 1 for serialA, 2 for serialB, 3 for ser2A, 4 for ser2B
 * (second 2 for CMA120 only)
 */
#define CFG_CMA_MB_BASE		0x00000000	/* base of m/b address space */
#include <config_cogent_common.h>
#undef CFG_CMA_CONS_SERIAL	/* use Cogent motherboard serial for console */
#define CFG_CMA_LCD_HEARTBEAT	/* define for sec rotator in lcd corner */
#if (CMA_MB_CAPS & CMA_MB_CAP_FLASH)
/*
 * flash exists on the motherboard
 * set these four according to TOP dipsw:
 * TOP on  => ..._FLLOW_...	(boot EPROM space is high so FLASH is low )
 * TOP off => ..._FLHIGH_...	(boot EPROM space is low  so FLASH is high)
 */
#define CMA_MB_FLASH_EXEC_BASE	CMA_MB_FLLOW_EXEC_BASE
#define CMA_MB_FLASH_EXEC_SIZE	CMA_MB_FLLOW_EXEC_SIZE
#define CMA_MB_FLASH_RDWR_BASE	CMA_MB_FLLOW_RDWR_BASE
#define CMA_MB_FLASH_RDWR_SIZE	CMA_MB_FLLOW_RDWR_SIZE
#endif
#define CMA_MB_FLASH_BASE	CMA_MB_FLASH_EXEC_BASE
#define CMA_MB_FLASH_SIZE	CMA_MB_FLASH_EXEC_SIZE

/*-----------------------------------------------------------------------
 * Hard Reset Configuration Words
 */
#define CFG_HRCW_MASTER	(HRCW_EBM|HRCW_BPS10|HRCW_L2CPC10|HRCW_DPPC11|\
			 HRCW_ISB100|HRCW_MMR11|HRCW_MODCK_H0101)
/* no slaves so just duplicate the master hrcw */
#define CFG_HRCW_SLAVE1	CFG_HRCW_MASTER
#define CFG_HRCW_SLAVE2	CFG_HRCW_MASTER
#define CFG_HRCW_SLAVE3	CFG_HRCW_MASTER
#define CFG_HRCW_SLAVE4	CFG_HRCW_MASTER
#define CFG_HRCW_SLAVE5	CFG_HRCW_MASTER
#define CFG_HRCW_SLAVE6	CFG_HRCW_MASTER
#define CFG_HRCW_SLAVE7	CFG_HRCW_MASTER

/*-----------------------------------------------------------------------
 * 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	0x3000	/* End of used area in DPRAM	*/
#define	CFG_INIT_DATA_SIZE	128  /* size in bytes reserved for initial data */
#define CFG_INIT_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_INIT_DATA_SIZE)
#define	CFG_INIT_SP_OFFSET	CFG_INIT_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
 */
#define	CFG_SDRAM_BASE		CMA_MB_RAM_BASE
#ifdef CONFIG_CMA302
#define CFG_FLASH_BASE		CMA_MB_SLOT2_BASE	/* cma302 in slot 2 */
#else
#define CFG_FLASH_BASE		CMA_MB_FLASH_BASE	/* flash on m/b */
#endif
#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()	*/

/*
 * 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 organization