system3.h

arm的bootloader,适用于sa1100,xscale系列,支持tftp下载及串口操作

/*
 * system3.h: PT system3 specific defines
 *
 * Copyright (C) 2001  Erik Mouw ([e-mail])
 *
 * $Id: system3.h,v 1.9 2002/01/07 16:31:25 seletz Exp $
 *
 * 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
 *
 */

#ident "$Id: system3.h,v 1.9 2002/01/07 16:31:25 seletz Exp $"

#ifndef BLOB_ARCH_SYSTEM3_H
#define BLOB_ARCH_SYSTEM3_H

#undef	CPU_SPEED_133

/* boot CPU speed */
#ifdef CPU_SPEED_133
#	define CPU_SPEED		(0x05)
#else
#	define CPU_SPEED		(0x0a)
#endif

/* serial port */
#define USE_SERIAL1

/* GPIO for the LED */
#define LED_GPIO		(0x00000400) /* GPIO 10 */


/* the base address were BLOB is loaded by the first stage loader */
#define BLOB_ABS_BASE_ADDR	(0xc0200400)


/* where do various parts live in RAM */
#define BLOB_RAM_BASE		(0xc0100000)
#define KERNEL_RAM_BASE		(0xC0008000)
#define PARAM_RAM_BASE		(0xc0110000)
#define RAMDISK_RAM_BASE	(0xC0400000)


/* and where do they live in flash */
#define BLOB_FLASH_BASE		(0x00000000)
#define BLOB_FLASH_LEN		(256 * 1024)
#define PARAM_FLASH_BASE	(0x00040000)
#define PARAM_FLASH_LEN		(256 * 1024)
#define KERNEL_FLASH_BASE	(0x00080000)
#define KERNEL_FLASH_LEN	(1024 * 1024)
#define RAMDISK_FLASH_BASE	(0x00180000)
#define RAMDISK_FLASH_LEN	(4 * 1024 * 1024)


/* the position of the kernel boot parameters */
#define BOOT_PARAMS		(0xc0000100)


/* the size (in kbytes) to which the compressed ramdisk expands */
#define RAMDISK_SIZE		(8 * 1024)


/* Memory configuration */
#ifdef BLOB_NEED_MEMCONFIG
#define MSC0_VALUE_66_150     MSC_RT_ROMFLASH | MSC_RBW32 | MSC_RDF(10) | MSC_RDN(2) | MSC_RRR(1)
#define MSC0_VALUE_66_120     MSC_RT_ROMFLASH | MSC_RBW32 | MSC_RDF( 8) | MSC_RDN(2) | MSC_RRR(1)
#define MSC0_VALUE_66_100     MSC_RT_ROMFLASH | MSC_RBW32 | MSC_RDF( 7) | MSC_RDN(2) | MSC_RRR(1)
#define MSC1_VALUE_66         MSC_RT_ROMFLASH | MSC_RBW16 | MSC_RDF(5)  | MSC_RDN(1) | MSC_RRR(1) | ((MSC_RT_VARLAT_345 | MSC_RBW16 | MSC_RDF(30)  | MSC_RDN(30) | MSC_RRR(7))<<16)
#define MSC2_VALUE_66         MSC_RT_VARLAT_345 | MSC_RBW32 | MSC_RDF(7)  | MSC_RDN(2) | MSC_RRR(1)
#define MECR_VALUE_66         0xFFFFFFFF
#define MSC0_VALUE_100_150    MSC_RT_ROMFLASH | MSC_RBW32 | MSC_RDF(16) | MSC_RDN(3) | MSC_RRR(2)
#define MSC0_VALUE_100_120    MSC_RT_ROMFLASH | MSC_RBW32 | MSC_RDF(13) | MSC_RDN(3) | MSC_RRR(2)
#define MSC0_VALUE_100_100    MSC_RT_ROMFLASH | MSC_RBW32 | MSC_RDF(11) | MSC_RDN(3) | MSC_RRR(2)
#define MSC1_VALUE_100        MSC_RT_ROMFLASH | MSC_RBW16 | MSC_RDF(5)  | MSC_RDN(1) | MSC_RRR(1)| ((MSC_RT_VARLAT_345 | MSC_RBW16 | MSC_RDF(30)  | MSC_RDN(30) | MSC_RRR(7))<<16)
#define MSC2_VALUE_100        MSC_RT_VARLAT_345 | MSC_RBW32 | MSC_RDF(9)  | MSC_RDN(2) | MSC_RRR(1)
#define MECR_VALUE_100        0xFFFFFFFF

#ifndef CPU_SPEED_133
//	206 Mhz
#	define MDCNFG_VALUE	0x72547254
#	define MDCAS00_VALUE	0xAAAAAA9F
#	define MDCAS01_VALUE	0xAAAAAAAA
#	define MDCAS02_VALUE	0xAAAAAAAA
#	define MDCAS20_VALUE	0xAAAAAA9F
#	define MDCAS21_VALUE	0xAAAAAAAA
#	define MDCAS22_VALUE	0xAAAAAAAA
#	define MSC0_VALUE	MSC0_VALUE_100_150
#	define MSC1_VALUE	MSC1_VALUE_100
#	define MSC2_VALUE	MSC2_VALUE_100
#	define MECR_VALUE	MECR_VALUE_100
#	define SMCNFG_VALUE	0
#else
//	133 Mhz
#	define MDCNFG_VALUE	0x72547254
#	define MDCAS00_VALUE	0xAAAAAA9F
#	define MDCAS01_VALUE	0xAAAAAAAA
#	define MDCAS02_VALUE	0xAAAAAAAA
#	define MDCAS20_VALUE	0xAAAAAA9F
#	define MDCAS21_VALUE	0xAAAAAAAA
#	define MDCAS22_VALUE	0xAAAAAAAA
#	define MSC0_VALUE	MSC0_VALUE_66_150
#	define MSC1_VALUE	MSC1_VALUE_66
#	define MSC2_VALUE	MSC2_VALUE_66
#	define MECR_VALUE	MECR_VALUE_66
#	define SMCNFG_VALUE	0
#endif
#endif

/* Debugging macros used in system 3 code */
#define SYSTEM3_DEBUG 1

#ifdef SYSTEM3_DEBUG
#	define _DBGU32( x )	SerialOutputString( #x"=0x" ); \
				SerialOutputHex( (u32)x ); \
				serial_write( '\n' );
#else
#	define _DBGU32( x )
#endif

#define	SA1111_BASE		(0x40000000)
#define	SA1111_VBASE	(0x40000000)

#endif