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			478 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			478 lines
		
	
	
		
			16 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
| /*
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|  * (C) Copyright 2000, 2001, 2002
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|  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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|  *
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|  * See file CREDITS for list of people who contributed to this
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|  * project.
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|  *
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|  * This program is free software; you can redistribute it and/or
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|  * modify it under the terms of the GNU General Public License as
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|  * published by the Free Software Foundation; either version 2 of
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|  * the License, or (at your option) any later version.
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|  *
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|  * This program is distributed in the hope that it will be useful,
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|  * but WITHOUT ANY WARRANTY; without even the implied warranty of
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|  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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|  * GNU General Public License for more details.
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|  *
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|  * You should have received a copy of the GNU General Public License
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|  * along with this program; if not, write to the Free Software
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|  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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|  * MA 02111-1307 USA
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|  */
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| 
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| /*
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|  * board/config.h - configuration options, board specific
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|  */
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| 
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| #ifndef __CONFIG_H
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| #define __CONFIG_H
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| 
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| /*
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|  * High Level Configuration Options
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|  * (easy to change)
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|  */
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| 
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| #define CONFIG_MPC823		1	/* This is a MPC823 CPU		*/
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| #define CONFIG_RRVISION		1	/* ...on a RRvision board	*/
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| 
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| #define CONFIG_8xx_GCLK_FREQ 64000000
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| 
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| #define	CONFIG_8xx_CONS_SMC1	1	/* Console is on SMC1		*/
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| #undef	CONFIG_8xx_CONS_SMC2
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| #undef	CONFIG_8xx_CONS_NONE
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| #define CONFIG_BAUDRATE		115200	/* console baudrate = 115kbps	*/
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| #if 0
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| #define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
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| #else
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| #define CONFIG_BOOTDELAY	3	/* autoboot after 5 seconds	*/
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| #endif
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| 
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| #define	CONFIG_CLOCKS_IN_MHZ	1	/* clocks passsed to Linux in MHz */
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| 
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| #define CONFIG_PREBOOT	"setenv stdout serial"
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| 
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| #undef	CONFIG_BOOTARGS
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| #define CONFIG_ETHADDR                00:50:C2:00:E0:70
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| #define CONFIG_OVERWRITE_ETHADDR_ONCE 1
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| #define CONFIG_IPADDR                 10.0.0.5
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| #define CONFIG_SERVERIP               10.0.0.2
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| #define CONFIG_NETMASK                255.0.0.0
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| #define CONFIG_ROOTPATH               /opt/eldk/ppc_8xx
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| #define CONFIG_BOOTCOMMAND            "run flash_self"
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| 
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| #define	CONFIG_EXTRA_ENV_SETTINGS					\
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| 	"netdev=eth0\0"							\
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| 	"ramargs=setenv bootargs root=/dev/ram rw\0"			\
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| 	"nfsargs=setenv bootargs root=/dev/nfs rw "			\
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| 		"nfsroot=${serverip}:${rootpath}\0"			\
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| 	"addip=setenv bootargs ${bootargs} ip=${ipaddr}:${serverip}"	\
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| 		":${gatewayip}:${netmask}:${hostname}:${netdev}:off\0"	\
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| 	"addtty=setenv bootargs ${bootargs} console=ttyS0,${baudrate}\0"\
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| 	"load=tftp 100000 /tftpboot/u-boot.bin\0"			\
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| 	"update=protect off 1:0-8;era 1:0-8;"				\
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| 		"cp.b 100000 40000000 ${filesize};"			\
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| 		"setenv filesize;saveenv\0"				\
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| 	"kernel_addr=40040000\0"					\
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| 	"ramdisk_addr=40100000\0"					\
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| 	"kernel_img=/tftpboot/uImage\0"					\
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| 	"kernel_load=tftp 200000 ${kernel_img}\0"			\
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| 	"net_nfs=run kernel_load nfsargs addip addtty;bootm\0"		\
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| 	"flash_nfs=run nfsargs addip addtty;bootm ${kernel_addr}\0"	\
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| 	"flash_self=run ramargs addip addtty;"				\
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| 		"bootm ${kernel_addr} ${ramdisk_addr}\0"
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| 
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| 
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| #define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
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| #undef	CFG_LOADS_BAUD_CHANGE		/* don't allow baudrate change	*/
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| 
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| #undef	CONFIG_WATCHDOG			/* watchdog disabled		*/
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| 
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| #undef	CONFIG_STATUS_LED		/* disturbs display		*/
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| 
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| #undef	CONFIG_CAN_DRIVER		/* CAN Driver support disabled	*/
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| 
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| /*
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|  * BOOTP options
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|  */
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| #define CONFIG_BOOTP_SUBNETMASK
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| #define CONFIG_BOOTP_GATEWAY
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| #define CONFIG_BOOTP_HOSTNAME
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| #define CONFIG_BOOTP_BOOTPATH
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| #define CONFIG_BOOTP_BOOTFILESIZE
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| 
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| 
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| #define CONFIG_MAC_PARTITION
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| #define CONFIG_DOS_PARTITION
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| 
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| #define	CONFIG_RTC_MPC8xx		/* use internal RTC of MPC8xx	*/
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| 
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| 
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| #ifndef CONFIG_LCD
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| #define CONFIG_VIDEO		1	/* To enable the video initialization */
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| 
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| /* Video related */
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| #define CONFIG_VIDEO_LOGO			1	/* Show the logo */
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| #define CONFIG_VIDEO_ENCODER_AD7179		1	/* Enable this encoder */
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| #define CONFIG_VIDEO_ENCODER_AD7179_ADDR	0x2A	/* ALSB to ground */
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| #endif
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| 
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| /* enable I2C and select the hardware/software driver */
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| #undef	CONFIG_HARD_I2C			/* I2C with hardware support	*/
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| #define	CONFIG_SOFT_I2C         	/* I2C bit-banged		*/
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| 
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| # define CFG_I2C_SPEED		50000	/* 50 kHz is supposed to work	*/
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| # define CFG_I2C_SLAVE		0xFE
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| 
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| #ifdef CONFIG_SOFT_I2C
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| /*
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|  * Software (bit-bang) I2C driver configuration
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|  */
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| #define PB_SCL		0x00000020	/* PB 26 */
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| #define PB_SDA		0x00000010	/* PB 27 */
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| 
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| #define I2C_INIT	(immr->im_cpm.cp_pbdir |=  PB_SCL)
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| #define I2C_ACTIVE	(immr->im_cpm.cp_pbdir |=  PB_SDA)
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| #define I2C_TRISTATE	(immr->im_cpm.cp_pbdir &= ~PB_SDA)
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| #define I2C_READ	((immr->im_cpm.cp_pbdat & PB_SDA) != 0)
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| #define I2C_SDA(bit)	if(bit) immr->im_cpm.cp_pbdat |=  PB_SDA; \
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| 			else    immr->im_cpm.cp_pbdat &= ~PB_SDA
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| #define I2C_SCL(bit)	if(bit) immr->im_cpm.cp_pbdat |=  PB_SCL; \
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| 			else    immr->im_cpm.cp_pbdat &= ~PB_SCL
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| #define I2C_DELAY	udelay(1)	/* 1/4 I2C clock duration */
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| #endif	/* CONFIG_SOFT_I2C */
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| 
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| 
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| /*
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|  * Command line configuration.
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|  */
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| #include <config_cmd_default.h>
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| 
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| #define CONFIG_CMD_DHCP
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| #define CONFIG_CMD_I2C
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| #define CONFIG_CMD_IDE
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| #define CONFIG_CMD_DATE
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| 
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| #undef CONFIG_CMD_PCMCIA
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| #undef CONFIG_CMD_IDE
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| 
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| 
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| /*
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|  * Miscellaneous configurable options
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|  */
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| #define	CFG_LONGHELP			/* undef to save memory		*/
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| #define	CFG_PROMPT	"=> "		/* Monitor Command Prompt	*/
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| #if defined(CONFIG_CMD_KGDB)
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| #define	CFG_CBSIZE	1024		/* Console I/O Buffer Size	*/
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| #else
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| #define	CFG_CBSIZE	256		/* Console I/O Buffer Size	*/
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| #endif
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| #define	CFG_PBSIZE (CFG_CBSIZE+sizeof(CFG_PROMPT)+16) /* Print Buffer Size */
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| #define	CFG_MAXARGS	16		/* max number of command args	*/
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| #define CFG_BARGSIZE	CFG_CBSIZE	/* Boot Argument Buffer Size	*/
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| 
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| #define CFG_MEMTEST_START	0x0400000	/* memtest works on	*/
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| #define CFG_MEMTEST_END		0x0C00000	/* 4 ... 12 MB in DRAM	*/
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| 
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| #define	CFG_LOAD_ADDR		0x100000	/* default load address	*/
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| 
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| #define	CFG_HZ		1000		/* decrementer freq: 1 ms ticks	*/
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| 
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| #define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }
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| 
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| /*
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|  * Low Level Configuration Settings
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|  * (address mappings, register initial values, etc.)
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|  * You should know what you are doing if you make changes here.
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|  */
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| /*-----------------------------------------------------------------------
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|  * Internal Memory Mapped Register
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|  */
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| #define CFG_IMMR		0xFFF00000
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| 
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| /*-----------------------------------------------------------------------
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|  * Definitions for initial stack pointer and data area (in DPRAM)
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|  */
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| #define CFG_INIT_RAM_ADDR	CFG_IMMR
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| #define	CFG_INIT_RAM_END	0x2F00	/* End of used area in DPRAM	*/
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| #define	CFG_GBL_DATA_SIZE	64  /* size in bytes reserved for initial data */
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| #define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
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| #define	CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET
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| 
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| /*-----------------------------------------------------------------------
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|  * Start addresses for the final memory configuration
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|  * (Set up by the startup code)
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|  * Please note that CFG_SDRAM_BASE _must_ start at 0
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|  */
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| #define	CFG_SDRAM_BASE		0x00000000
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| #define CFG_FLASH_BASE		0x40000000
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| #define	CFG_MONITOR_LEN		(256 << 10)	/* Reserve 256 kB for Monitor	*/
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| #define CFG_MONITOR_BASE	CFG_FLASH_BASE
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| #define	CFG_MALLOC_LEN		(128 << 10)	/* Reserve 128 kB for malloc()	*/
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| 
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| /*
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|  * For booting Linux, the board info and command line data
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|  * have to be in the first 8 MB of memory, since this is
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|  * the maximum mapped by the Linux kernel during initialization.
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|  */
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| #define	CFG_BOOTMAPSZ		(8 << 20)	/* Initial Memory map for Linux	*/
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| 
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| /*-----------------------------------------------------------------------
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|  * FLASH organization
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|  */
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| #define CFG_MAX_FLASH_BANKS	1	/* max number of memory banks		*/
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| #define CFG_MAX_FLASH_SECT	71	/* max number of sectors on one chip	*/
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| 
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| /* timeout values are in ticks = ms */
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| #define CFG_FLASH_ERASE_TOUT	(120*CFG_HZ)	/* Timeout for Flash Erase	*/
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| #define CFG_FLASH_WRITE_TOUT	(1 * CFG_HZ)	/* Timeout for Flash Write	*/
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| 
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| #define	CFG_ENV_IS_IN_FLASH	1
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| #define	CFG_ENV_OFFSET		0x8000	/*   Offset   of Environment Sector	*/
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| #define	CFG_ENV_SIZE		0x4000	/* Total Size of Environment Sector	*/
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| 
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| /* Address and size of Redundant Environment Sector	*/
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| #define CFG_ENV_OFFSET_REDUND	(CFG_ENV_OFFSET+CFG_ENV_SIZE)
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| #define CFG_ENV_SIZE_REDUND	(CFG_ENV_SIZE)
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| 
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| /*-----------------------------------------------------------------------
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|  * Cache Configuration
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|  */
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| #define CFG_CACHELINE_SIZE	16	/* For all MPC8xx CPUs			*/
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| #if defined(CONFIG_CMD_KGDB)
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| #define CFG_CACHELINE_SHIFT	4	/* log base 2 of the above value	*/
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| #endif
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| 
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| /*-----------------------------------------------------------------------
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|  * SYPCR - System Protection Control				11-9
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|  * SYPCR can only be written once after reset!
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|  *-----------------------------------------------------------------------
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|  * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
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|  */
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| #if defined(CONFIG_WATCHDOG)
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| #define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
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| 			 SYPCR_SWE  | SYPCR_SWRI| SYPCR_SWP)
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| #else
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| #define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
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| #endif
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| 
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| /*-----------------------------------------------------------------------
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|  * SIUMCR - SIU Module Configuration				11-6
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|  *-----------------------------------------------------------------------
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|  * PCMCIA config., multi-function pin tri-state
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|  */
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| #ifndef	CONFIG_CAN_DRIVER
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| #define CFG_SIUMCR	(SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
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| #else	/* we must activate GPL5 in the SIUMCR for CAN */
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| #define CFG_SIUMCR	(SIUMCR_DBGC11 | SIUMCR_DBPC00 | SIUMCR_MLRC01)
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| #endif	/* CONFIG_CAN_DRIVER */
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| 
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| /*-----------------------------------------------------------------------
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|  * TBSCR - Time Base Status and Control				11-26
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|  *-----------------------------------------------------------------------
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|  * Clear Reference Interrupt Status, Timebase freezing enabled
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|  */
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| #define CFG_TBSCR	(TBSCR_REFA | TBSCR_REFB | TBSCR_TBF)
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| 
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| /*-----------------------------------------------------------------------
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|  * RTCSC - Real-Time Clock Status and Control Register		11-27
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|  *-----------------------------------------------------------------------
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|  */
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| #define CFG_RTCSC	(RTCSC_SEC | RTCSC_ALR | RTCSC_RTF| RTCSC_RTE)
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| 
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| /*-----------------------------------------------------------------------
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|  * PISCR - Periodic Interrupt Status and Control		11-31
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|  *-----------------------------------------------------------------------
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|  * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
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|  */
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| #define CFG_PISCR	(PISCR_PS | PISCR_PITF | PISCR_PTE)
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| 
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| /*-----------------------------------------------------------------------
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|  * PLPRCR - PLL, Low-Power, and Reset Control Register		15-30
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|  *-----------------------------------------------------------------------
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|  * Reset PLL lock status sticky bit, timer expired status bit and timer
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|  * interrupt status bit
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|  */
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| 
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| /* for 64 MHz, we use a 16 MHz clock * 4 */
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| #define CFG_PLPRCR ( (4-1)<<PLPRCR_MF_SHIFT | PLPRCR_TEXPS | PLPRCR_TMIST )
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| 
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| /*-----------------------------------------------------------------------
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|  * SCCR - System Clock and reset Control Register		15-27
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|  *-----------------------------------------------------------------------
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|  * Set clock output, timebase and RTC source and divider,
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|  * power management and some other internal clocks
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|  */
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| #define SCCR_MASK	SCCR_EBDF11
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| #define CFG_SCCR	(/* SCCR_TBS  | */ SCCR_RTSEL | SCCR_RTDIV    | \
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| 			 SCCR_COM00   | SCCR_DFSYNC00 | SCCR_DFBRG00  | \
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| 			 SCCR_DFNL000 | SCCR_DFNH000  | SCCR_DFLCD000 | \
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| 			 SCCR_DFALCD00)
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| 
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| /*-----------------------------------------------------------------------
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|  * PCMCIA stuff
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|  *-----------------------------------------------------------------------
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|  *
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|  */
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| #define CFG_PCMCIA_MEM_ADDR	(0xE0000000)
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| #define CFG_PCMCIA_MEM_SIZE	( 64 << 20 )
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| #define CFG_PCMCIA_DMA_ADDR	(0xE4000000)
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| #define CFG_PCMCIA_DMA_SIZE	( 64 << 20 )
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| #define CFG_PCMCIA_ATTRB_ADDR	(0xE8000000)
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| #define CFG_PCMCIA_ATTRB_SIZE	( 64 << 20 )
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| #define CFG_PCMCIA_IO_ADDR	(0xEC000000)
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| #define CFG_PCMCIA_IO_SIZE	( 64 << 20 )
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| 
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| /*-----------------------------------------------------------------------
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|  * IDE/ATA stuff (Supports IDE harddisk on PCMCIA Adapter)
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|  *-----------------------------------------------------------------------
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|  */
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| 
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| #define	CONFIG_IDE_8xx_PCCARD	1	/* Use IDE with PC Card	Adapter	*/
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| 
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| #undef	CONFIG_IDE_8xx_DIRECT		/* Direct IDE    not supported	*/
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| #undef	CONFIG_IDE_LED			/* LED   for ide not supported	*/
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| #undef	CONFIG_IDE_RESET		/* reset for ide not supported	*/
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| 
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| #define CFG_IDE_MAXBUS		1	/* max. 1 IDE bus		*/
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| #define CFG_IDE_MAXDEVICE	1	/* max. 1 drive per IDE bus	*/
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| 
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| #define CFG_ATA_IDE0_OFFSET	0x0000
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| 
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| #define CFG_ATA_BASE_ADDR	CFG_PCMCIA_MEM_ADDR
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| 
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| /* Offset for data I/O			*/
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| #define CFG_ATA_DATA_OFFSET	(CFG_PCMCIA_MEM_SIZE + 0x320)
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| 
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| /* Offset for normal register accesses	*/
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| #define CFG_ATA_REG_OFFSET	(2 * CFG_PCMCIA_MEM_SIZE + 0x320)
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| 
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| /* Offset for alternate registers	*/
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| #define CFG_ATA_ALT_OFFSET	0x0100
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| 
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| /*-----------------------------------------------------------------------
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|  *
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|  *-----------------------------------------------------------------------
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|  *
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|  */
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| /*#define	CFG_DER	0x2002000F*/
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| #define CFG_DER	0
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| 
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| /*
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|  * Init Memory Controller:
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|  *
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|  * BR0/1 (FLASH)
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|  */
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| 
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| #define FLASH_BASE0_PRELIM	0x40000000	/* FLASH bank #0	*/
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| 
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| /* used to re-map FLASH both when starting from SRAM or FLASH:
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|  * restrict access enough to keep SRAM working (if any)
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|  * but not too much to meddle with FLASH accesses
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|  */
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| #define CFG_REMAP_OR_AM		0x80000000	/* OR addr mask */
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| #define CFG_PRELIM_OR_AM	0xE0000000	/* OR addr mask */
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| 
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| /*
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|  * FLASH timing:
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|  */
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| /* 66 MHz CPU - 66 MHz bus: ACS = 00, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 1 */
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| #define CFG_OR_TIMING_FLASH	(OR_ACS_DIV1  | OR_TRLX | OR_CSNT_SAM | \
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| 				 OR_SCY_3_CLK | OR_EHTR | OR_BI)
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| 
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| #define CFG_OR0_REMAP	(CFG_REMAP_OR_AM  | CFG_OR_TIMING_FLASH)
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| #define CFG_OR0_PRELIM	(CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)
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| #define CFG_BR0_PRELIM	((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_V )
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| 
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| /*
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|  * BR2/3 and OR2/3 (SDRAM)
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|  *
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|  */
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| #define SDRAM_BASE2_PRELIM	0x00000000	/* SDRAM bank #0	*/
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| #define SDRAM_BASE3_PRELIM	0x20000000	/* SDRAM bank #1	*/
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| #define	SDRAM_MAX_SIZE		0x04000000	/* max 64 MB per bank	*/
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| 
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| /* SDRAM timing: Multiplexed addresses, GPL5 output to GPL5_A (don't care)	*/
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| #define CFG_OR_TIMING_SDRAM	0x00000A00
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| 
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| #define CFG_OR2_PRELIM	(CFG_PRELIM_OR_AM | CFG_OR_TIMING_SDRAM )
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| #define CFG_BR2_PRELIM	((SDRAM_BASE2_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
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| 
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| #ifndef	CONFIG_CAN_DRIVER
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| #define	CFG_OR3_PRELIM	CFG_OR2_PRELIM
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| #define CFG_BR3_PRELIM	((SDRAM_BASE3_PRELIM & BR_BA_MSK) | BR_MS_UPMA | BR_V )
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| #else	/* CAN uses CS3#, so we can have only one SDRAM bank anyway */
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| #define	CFG_CAN_BASE		0xC0000000	/* CAN mapped at 0xC0000000	*/
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| #define CFG_CAN_OR_AM		0xFFFF8000	/* 32 kB address mask		*/
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| #define CFG_OR3_CAN		(CFG_CAN_OR_AM | OR_G5LA | OR_BI)
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| #define CFG_BR3_CAN		((CFG_CAN_BASE & BR_BA_MSK) | \
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| 					BR_PS_8 | BR_MS_UPMB | BR_V )
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| #endif	/* CONFIG_CAN_DRIVER */
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| 
 | |
| /*
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|  * Memory Periodic Timer Prescaler
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|  *
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|  * The Divider for PTA (refresh timer) configuration is based on an
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|  * example SDRAM configuration (64 MBit, one bank). The adjustment to
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|  * the number of chip selects (NCS) and the actually needed refresh
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|  * rate is done by setting MPTPR.
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|  *
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|  * PTA is calculated from
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|  *	PTA = (gclk * Trefresh) / ((2 ^ (2 * DFBRG)) * PTP * NCS)
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|  *
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|  *	gclk	  CPU clock (not bus clock!)
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|  *	Trefresh  Refresh cycle * 4 (four word bursts used)
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|  *
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|  * 4096  Rows from SDRAM example configuration
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|  * 1000  factor s -> ms
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|  *   32  PTP (pre-divider from MPTPR) from SDRAM example configuration
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|  *    4  Number of refresh cycles per period
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|  *   64  Refresh cycle in ms per number of rows
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|  * --------------------------------------------
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|  * Divider = 4096 * 32 * 1000 / (4 * 64) = 512000
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|  *
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|  * 50 MHz => 50.000.000 / Divider =  98
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|  * 66 Mhz => 66.000.000 / Divider = 129
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|  * 80 Mhz => 80.000.000 / Divider = 156
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|  */
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| #define CFG_MAMR_PTA		129
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| 
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| /*
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|  * For 16 MBit, refresh rates could be 31.3 us
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|  * (= 64 ms / 2K = 125 / quad bursts).
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|  * For a simpler initialization, 15.6 us is used instead.
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|  *
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|  * #define CFG_MPTPR_2BK_2K	MPTPR_PTP_DIV32		for 2 banks
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|  * #define CFG_MPTPR_1BK_2K	MPTPR_PTP_DIV64		for 1 bank
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|  */
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| #define CFG_MPTPR_2BK_4K	MPTPR_PTP_DIV16		/* setting for 2 banks	*/
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| #define CFG_MPTPR_1BK_4K	MPTPR_PTP_DIV32		/* setting for 1 bank	*/
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| 
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| /* refresh rate 7.8 us (= 64 ms / 8K = 31.2 / quad bursts) for 256 MBit		*/
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| #define CFG_MPTPR_2BK_8K	MPTPR_PTP_DIV8		/* setting for 2 banks	*/
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| #define CFG_MPTPR_1BK_8K	MPTPR_PTP_DIV16		/* setting for 1 bank	*/
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| 
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| /*
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|  * MAMR settings for SDRAM
 | |
|  */
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| 
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| /* 8 column SDRAM */
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| #define CFG_MAMR_8COL	((CFG_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE	    |	\
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| 			 MAMR_AMA_TYPE_0 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A11 |	\
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| 			 MAMR_RLFA_1X	 | MAMR_WLFA_1X	   | MAMR_TLFA_4X)
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| /* 9 column SDRAM */
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| #define CFG_MAMR_9COL	((CFG_MAMR_PTA << MAMR_PTA_SHIFT)  | MAMR_PTAE	    |	\
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| 			 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 |	\
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| 			 MAMR_RLFA_1X	 | MAMR_WLFA_1X	   | MAMR_TLFA_4X)
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| 
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| 
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| /*
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|  * Internal Definitions
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|  *
 | |
|  * Boot Flags
 | |
|  */
 | |
| #define	BOOTFLAG_COLD	0x01		/* Normal Power-On: Boot from FLASH	*/
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| #define BOOTFLAG_WARM	0x02		/* Software reboot			*/
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| 
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| #endif	/* __CONFIG_H */
 |