mpc86xads.h

U BOOT源码

/*
  * A collection of structures, addresses, and values associated with
  * the Motorola MPC8xxADS board.  Copied from the FADS config.
  *
  * Copyright (c) 1998 Dan Malek ([e-mail])
  */

/*
 * 1999-nov-26: The FADS is using the following physical memorymap:
 *
 * ff020000 -> ff02ffff : pcmcia
 * ff010000 -> ff01ffff : BCSR       connected to CS1, setup by 8xxrom
 * ff000000 -> ff00ffff : IMAP       internal in the cpu
 * fe000000 -> ffnnnnnn : flash      connected to CS0, setup by 8xxrom
 * 00000000 -> nnnnnnnn : sdram/dram setup by 8xxrom
 */

/* ------------------------------------------------------------------------- */

/*
 * board/config.h - configuration options, board specific
 */

#ifndef __CONFIG_H
#define __CONFIG_H

/*
 * High Level Configuration Options
 * (easy to change)
 */
#include <mpc8xx_irq.h>

/* board type */
#define CONFIG_MPC86xADS        1       /* new ADS */
#define CONFIG_FADS		1       /* We are FADS compatible (more or less) */

/* new 86xADS only - pick one of these */
#define CONFIG_MPC866T 		1
#undef CONFIG_MPC866P
#undef CONFIG_MPC859T
#undef CONFIG_MPC859DSL
#undef CONFIG_MPC852T

#define	CONFIG_8xx_CONS_SMC1	1	/* Console is on SMC1		*/
#undef	CONFIG_8xx_CONS_SMC2
#undef	CONFIG_8xx_CONS_NONE
#define CONFIG_BAUDRATE		38400
#define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/

#ifdef CONFIG_MPC86xADS
# define CFG_8XX_FACT		5		/* Multiply by 5	*/
# define CFG_8XX_XIN		10000000	/* 10 MHz in	*/
#else /* ! CONFIG_MPC86xADS */
# if 0 /* old FADS */
#  define CFG_8XX_FACT		12		/* Multiply by 12 */
#  define CFG_8XX_XIN		4000000		/* 4 MHz in	*/
# else /* new FADS */
#  define CFG_8XX_FACT		10		/* Multiply by 10 */
#  define CFG_8XX_XIN		5000000		/* 5 MHz in	*/
# endif
#endif /* ! CONFIG_MPC86xADS */

#define MPC8XX_HZ ((CFG_8XX_XIN) * (CFG_8XX_FACT))

/* should ALWAYS define this, measure_gclk in speed.c is unreliable */
/* in general, we always know this for FADS+new ADS anyway */
#define CONFIG_8xx_GCLK_FREQ     MPC8XX_HZ

/* most vanilla kernels do not like this, set to 0 if in doubt */
#define	CONFIG_CLOCKS_IN_MHZ	1	/* clocks passsed to Linux in MHz */

#if 1
#define CONFIG_BOOTDELAY	-1	/* autoboot disabled		*/
#else
#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds	*/
#endif

#undef	CONFIG_BOOTARGS
#define CONFIG_BOOTCOMMAND			    \
    "bootp; "				    \
    "setenv bootargs root=/dev/nfs rw nfsroot=$(serverip):$(rootpath) "	    \
    "ip=$(ipaddr):$(serverip):$(gatewayip):$(netmask):$(hostname)::off; "   \
    "bootm"

/* #include "local.h" */

#undef	CONFIG_WATCHDOG			/* watchdog disabled		*/

/* ATA / IDE and partition support */
#define CONFIG_MAC_PARTITION    1
#define CONFIG_DOS_PARTITION    1
#define CONFIG_ISO_PARTITION	1
#undef	CONFIG_ATAPI
#define CONFIG_IDE_8xx_PCCARD	1	/* Use IDE with PC Card Adapter */
#undef	CONFIG_IDE_8xx_DIRECT		/* Direct IDE	 not supported	*/
#undef	CONFIG_IDE_LED			/* LED	 for ide not supported	*/
#undef	CONFIG_IDE_RESET		/* reset for ide not supported	*/

/* choose SCC1 ethernet (10BASET on motherboard)
 * or FEC ethernet (10/100 on daughterboard)
 */
#if 0
#define	CONFIG_SCC1_ENET	1	/* use SCC1 ethernet */
#undef	CONFIG_FEC_ENET			/* disable FEC ethernet  */
#else   /* all 86x cores have FECs, if in doubt, use it */
#undef	CONFIG_SCC1_ENET		/* disable SCC1 ethernet */
#define	CONFIG_FEC_ENET		1	/* use FEC ethernet  */
#define CFG_DISCOVER_PHY
#endif
#if defined(CONFIG_SCC1_ENET) && defined(CONFIG_FEC_ENET)
#error Both CONFIG_SCC1_ENET and CONFIG_FEC_ENET configured
#endif

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

/*
 * Miscellaneous configurable options
 */
#undef	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	0x0100000	/* memtest works on	*/
#if (CFG_SDRAM_SIZE)
#define CFG_MEMTEST_END		CFG_SDRAM_SIZE	/* 1 ... SDRAM_SIZE	*/
#else
#define CFG_MEMTEST_END		0x0400000     	/* 1 ... 4 MB in DRAM	*/
#endif

#define CFG_LOAD_ADDR	 	0x00100000

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

#define CFG_BAUDRATE_TABLE	{ 9600, 19200, 38400, 57600, 115200 }

/*
 * Low Level Configuration Settings
 * (address mappings, register initial values, etc.)
 * You should know what you are doing if you make changes here.
 */
/*-----------------------------------------------------------------------
 * Internal Memory Mapped Register
 */
#define CFG_IMMR		0xFF000000
#define CFG_IMMR_SIZE		((uint)(64 * 1024))

/*-----------------------------------------------------------------------
 * Definitions for initial stack pointer and data area (in DPRAM)
 */
#define CFG_INIT_RAM_ADDR	CFG_IMMR
#define	CFG_INIT_RAM_END	0x2F00	/* End of used area in DPRAM	*/
#define	CFG_GBL_DATA_SIZE	64  /* size in bytes reserved for initial data */
#define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
#define	CFG_INIT_SP_OFFSET	CFG_GBL_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		0x00000000
#ifdef CONFIG_FADS
# ifdef CONFIG_MPC86xADS /* new ADS */
#  define	CFG_SDRAM_SIZE	0x00800000      /* 8 meg */
# else                   /* old/new FADS */
#  define	CFG_SDRAM_SIZE	0x00400000      /* 4 meg */
# endif
#else   /* !CONFIG_FADS */ /* old ADS */
# define	CFG_SDRAM_SIZE	0x00000000      /* NO SDRAM */
#endif

#define CFG_FLASH_BASE		0x02800000

#define CFG_FLASH_SIZE		((uint)(8 * 1024 * 1024))	/* max 8Mbyte */

#define	CFG_MONITOR_LEN		(272 << 10)	/* Reserve 272 kB for Monitor	*/
#define CFG_MONITOR_BASE	CFG_FLASH_BASE
#define	CFG_MALLOC_LEN		(384 << 10)	/* Reserve 384 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
 */
#define CFG_MAX_FLASH_BANKS	1	/* max number of memory banks		*/
#define CFG_MAX_FLASH_SECT	16      /* max number of sectors on one chip	*/

#define CFG_FLASH_ERASE_TOUT	120000	/* Timeout for Flash Erase (in ms)	*/
#define CFG_FLASH_WRITE_TOUT	500	/* Timeout for Flash Write (in ms)	*/

#define	CFG_ENV_IS_IN_FLASH	1
#define CFG_ENV_OFFSET		0x00040000
#define	CFG_ENV_SIZE		0x4000	/* Total Size of Environment Sector	*/

#define CFG_ENV_SECT_SIZE	0x40000	/* see README - env sector total size	*/

/*-----------------------------------------------------------------------
 * Cache Configuration
 */
#define CFG_CACHELINE_SIZE	16	/* For all MPC8xx CPUs			*/
#if (CONFIG_COMMANDS & CFG_CMD_KGDB)
#define CFG_CACHELINE_SHIFT	4	/* log base 2 of the above value	*/
#endif

/*-----------------------------------------------------------------------
 * SYPCR - System Protection Control					11-9
 * SYPCR can only be written once after reset!
 *-----------------------------------------------------------------------
 * Software & Bus Monitor Timer max, Bus Monitor enable, SW Watchdog freeze
 */
#if defined(CONFIG_WATCHDOG)
#define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | \
			 SYPCR_SWE  | SYPCR_SWRI| SYPCR_SWP)
#else
#define CFG_SYPCR	(SYPCR_SWTC | SYPCR_BMT | SYPCR_BME | SYPCR_SWF | SYPCR_SWP)
#endif

/*-----------------------------------------------------------------------
 * SIUMCR - SIU Module Configuration					11-6
 *-----------------------------------------------------------------------
 * PCMCIA config., multi-function pin tri-state
 */
#define CFG_SIUMCR	(SIUMCR_DBGC00 | SIUMCR_DBPC00 | SIUMCR_MLRC01)

/*-----------------------------------------------------------------------
 * TBSCR - Time Base Status and Control					11-26
 *-----------------------------------------------------------------------
 * Clear Reference Interrupt Status, Timebase freezing enabled
 */
#define CFG_TBSCR	(TBSCR_REFA | TBSCR_REFB | TBSCR_TBE)

/*-----------------------------------------------------------------------
 * PISCR - Periodic Interrupt Status and Control		11-31
 *-----------------------------------------------------------------------
 * Clear Periodic Interrupt Status, Interrupt Timer freezing enabled
 */
#define CFG_PISCR	(PISCR_PS | PISCR_PITF)

/*-----------------------------------------------------------------------
 * PLPRCR - PLL, Low-Power, and Reset Control Register	15-30
 *-----------------------------------------------------------------------
 * set the PLL, the low-power modes and the reset control (15-29)
 */
#define CFG_PLPRCR	((CFG_8XX_FACT << PLPRCR_MFI_SHIFT) |	\
				PLPRCR_SPLSS | PLPRCR_TEXPS)

/*-----------------------------------------------------------------------
 * SCCR - System Clock and reset Control Register		15-27
 *-----------------------------------------------------------------------
 * Set clock output, timebase and RTC source and divider,
 * power management and some other internal clocks
 */
#define SCCR_MASK	SCCR_EBDF11
#define CFG_SCCR	(SCCR_TBS|SCCR_COM00|SCCR_DFSYNC00|SCCR_DFBRG00|SCCR_DFNL000|SCCR_DFNH000|SCCR_DFLCD000|SCCR_DFALCD00)

 /*-----------------------------------------------------------------------
 *
 *-----------------------------------------------------------------------
 *
 */
#define CFG_DER		 0

/* Because of the way the 860 starts up and assigns CS0 the
* entire address space, we have to set the memory controller
* differently.  Normally, you write the option register
* first, and then enable the chip select by writing the
* base register.  For CS0, you must write the base register
* first, followed by the option register.
*/

/*
 * Init Memory Controller:
 *
 * BR0/1 and OR0/1 (FLASH)
 */
/* the other CS:s are determined by looking at parameters in BCSRx */

#define BCSR_ADDR		((uint) 0xFF010000)
#define BCSR_SIZE		((uint)(64 * 1024))

#define CFG_REMAP_OR_AM		0x80000000	/* OR addr mask */
#define CFG_PRELIM_OR_AM	0xFF800000	/* OR addr mask */

/* FLASH timing: ACS = 10, TRLX = 1, CSNT = 1, SCY = 3, EHTR = 0	*/
#define CFG_OR_TIMING_FLASH	(OR_CSNT_SAM  | OR_ACS_DIV4 | OR_BI | OR_SCY_3_CLK | OR_TRLX)

#define CFG_OR0_REMAP	(CFG_REMAP_OR_AM  | CFG_OR_TIMING_FLASH)

#ifdef USE_REAL_FLASH_VALUES
/*
 * The "default" behaviour with 1Mbyte initial doesn't work for us!
 */
#define CFG_OR0_PRELIM	0x0FFC00D34 /* Real values for the board */
#define CFG_BR0_PRELIM	0x02800001  /* Real values for the board */
#else
#define CFG_OR0_PRELIM	(CFG_PRELIM_OR_AM | CFG_OR_TIMING_FLASH)   /* 8 Mbyte until detected */
#define CFG_BR0_PRELIM	((CFG_FLASH_BASE & BR_BA_MSK) | BR_V )
#endif

/* BCSRx - Board Control and Status Registers */
#define CFG_OR1_REMAP	CFG_OR0_REMAP
#define CFG_OR1_PRELIM	0xffff8110		/* 64Kbyte address space */
#define CFG_BR1_PRELIM	((BCSR_ADDR) | BR_V )

/*
 * Internal Definitions
 *
 * Boot Flags
 */
#define	BOOTFLAG_COLD	0x01		/* Normal Power-On: Boot from FLASH	*/
#define BOOTFLAG_WARM	0x02		/* Software reboot			*/

/* values according to the manual */

#define PCMCIA_MEM_ADDR		((uint)0xff020000)
#define PCMCIA_MEM_SIZE		((uint)(64 * 1024))

#define	BCSR0			((uint) (BCSR_ADDR + 00))
#define	BCSR1			((uint) (BCSR_ADDR + 0x04))
#define	BCSR2			((uint) (BCSR_ADDR + 0x08))
#define	BCSR3			((uint) (BCSR_ADDR + 0x0c))
#define	BCSR4			((uint) (BCSR_ADDR + 0x10))

/* FADS bitvalues by Helmut Buchsbaum
 * see MPC8xxADS User's Manual for a proper description
 * of the following structures
 */

#define BCSR0_ERB       ((uint)0x80000000)
#define BCSR0_IP        ((uint)0x40000000)
#define BCSR0_BDIS      ((uint)0x10000000)
#define BCSR0_BPS_MASK  ((uint)0x0C000000)
#define BCSR0_ISB_MASK  ((uint)0x01800000)
#define BCSR0_DBGC_MASK ((uint)0x00600000)
#define BCSR0_DBPC_MASK ((uint)0x00180000)
#define BCSR0_EBDF_MASK ((uint)0x00060000)

#define BCSR1_FLASH_EN           ((uint)0x80000000)
#define BCSR1_DRAM_EN            ((uint)0x40000000)
#define BCSR1_ETHEN              ((uint)0x20000000)
#define BCSR1_IRDEN              ((uint)0x10000000)
#define BCSR1_FLASH_CFG_EN       ((uint)0x08000000)
#define BCSR1_CNT_REG_EN_PROTECT ((uint)0x04000000)
#define BCSR1_BCSR_EN            ((uint)0x02000000)
#define BCSR1_RS232EN_1          ((uint)0x01000000)
#define BCSR1_PCCEN              ((uint)0x00800000)
#define BCSR1_PCCVCC0            ((uint)0x00400000)
#define BCSR1_PCCVPP_MASK        ((uint)0x00300000)
#define BCSR1_DRAM_HALF_WORD     ((uint)0x00080000)
#define BCSR1_RS232EN_2          ((uint)0x00040000)
#define BCSR1_SDRAM_EN           ((uint)0x00020000)
#define BCSR1_PCCVCC1            ((uint)0x00010000)

#define BCSR2_FLASH_PD_MASK      ((uint)0xF0000000)
#define BCSR2_DRAM_PD_MASK       ((uint)0x07800000)
#define BCSR2_DRAM_PD_SHIFT      (23)
#define BCSR2_EXTTOLI_MASK       ((uint)0x00780000)
#define BCSR2_DBREVNR_MASK       ((uint)0x00030000)

#define BCSR3_DBID_MASK          ((ushort)0x3800)
#define BCSR3_CNT_REG_EN_PROTECT ((ushort)0x0400)
#define BCSR3_BREVNR0            ((ushort)0x0080)
#define BCSR3_FLASH_PD_MASK      ((ushort)0x0070)
#define BCSR3_BREVN1             ((ushort)0x0008)
#define BCSR3_BREVN2_MASK        ((ushort)0x0003)

#define BCSR4_ETHLOOP            ((uint)0x80000000)
#define BCSR4_TFPLDL             ((uint)0x40000000)
#define BCSR4_TPSQEL             ((uint)0x20000000)
#define BCSR4_SIGNAL_LAMP        ((uint)0x10000000)
#define BCSR4_FETH_EN            ((uint)0x08000000)
#define BCSR4_FETHCFG0           ((uint)0x04000000)
#define BCSR4_FETHFDE            ((uint)0x02000000)
#define BCSR4_FETHCFG1           ((uint)0x00400000)
#define BCSR4_FETHRST            ((uint)0x00200000)

#define CONFIG_DRAM_50MHZ		1
#define CONFIG_SDRAM_50MHZ              1

/* Interrupt level assignments.
*/
#define FEC_INTERRUPT	SIU_LEVEL1	/* FEC interrupt */

/* We don't use the 8259.
*/
#define NR_8259_INTS	0

/* Machine type
*/
#define _MACH_8xx (_MACH_fads)

#define CONFIG_DISK_SPINUP_TIME 1000000


/* PCMCIA configuration */

#define PCMCIA_MAX_SLOTS    2

#ifdef CONFIG_MPC860
#define PCMCIA_SLOT_A 1
#endif
/*#define CFG_PCMCIA_MEM_SIZE     ( 64 << 20) */
#define CFG_PCMCIA_MEM_ADDR	(0x50000000)
#define CFG_PCMCIA_MEM_SIZE	( 64 << 20 )
#define CFG_PCMCIA_DMA_ADDR	(0x54000000)
#define CFG_PCMCIA_DMA_SIZE	( 64 << 20 )
#define CFG_PCMCIA_ATTRB_ADDR	(0x58000000)
#define CFG_PCMCIA_ATTRB_SIZE	( 64 << 20 )
#define CFG_PCMCIA_IO_ADDR	(0x5C000000)
#define CFG_PCMCIA_IO_SIZE	( 64 << 20 )
/* we have 8 windows, we take everything up to 60000000 */

#define CFG_ATA_IDE0_OFFSET	0x0000

#define CFG_ATA_BASE_ADDR	CFG_PCMCIA_MEM_ADDR

/* Offset for data I/O			*/
#define CFG_ATA_DATA_OFFSET	(CFG_PCMCIA_MEM_SIZE + 0x320)
/* Offset for normal register accesses	*/
#define CFG_ATA_REG_OFFSET	(2 * CFG_PCMCIA_MEM_SIZE + 0x320)
/* Offset for alternate registers	*/
#define CFG_ATA_ALT_OFFSET	0x0000
/*#define CFG_ATA_ALT_OFFSET	0x0100 */


#endif	/* __CONFIG_H */