common.h

嵌入式试验箱S3C2410的bootloader源代码

/*
 * (C) Copyright 2000-2004
 * Wolfgang Denk, DENX Software Engineering, [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
 */

#ifndef __COMMON_H_
#define __COMMON_H_	1

#undef	_LINUX_CONFIG_H
#define _LINUX_CONFIG_H 1	/* avoid reading Linux autoconf.h file	*/

typedef unsigned char		uchar;
typedef volatile unsigned long	vu_long;
typedef volatile unsigned short vu_short;
typedef volatile unsigned char	vu_char;

#include <config.h>
#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/string.h>
#include <asm/ptrace.h>
#include <stdarg.h>
#if defined(CONFIG_PCI) && defined(CONFIG_440)
#include <pci.h>
#endif
#if defined(CONFIG_8xx)
#include <asm/8xx_immap.h>
#if defined(CONFIG_MPC852)	|| defined(CONFIG_MPC852T)	|| \
    defined(CONFIG_MPC859)	|| defined(CONFIG_MPC859T)	|| \
    defined(CONFIG_MPC859DSL)	|| \
    defined(CONFIG_MPC866)	|| defined(CONFIG_MPC866T)	|| \
    defined(CONFIG_MPC866P)
# define CONFIG_MPC866_FAMILY 1
#elif defined(CONFIG_MPC870) \
   || defined(CONFIG_MPC875) \
   || defined(CONFIG_MPC880) \
   || defined(CONFIG_MPC885)
# define CONFIG_MPC885_FAMILY   1
#endif
#if   defined(CONFIG_MPC860)	   \
   || defined(CONFIG_MPC860T)	   \
   || defined(CONFIG_MPC866_FAMILY) \
   || defined(CONFIG_MPC885_FAMILY)
# define CONFIG_MPC86x 1
#endif
#elif defined(CONFIG_5xx)
#include <asm/5xx_immap.h>
#elif defined(CONFIG_MPC5xxx)
#include <mpc5xxx.h>
#elif defined(CONFIG_MPC8220)
#include <asm/immap_8220.h>
#elif defined(CONFIG_8260)
#if   defined(CONFIG_MPC8247) \
   || defined(CONFIG_MPC8248) \
   || defined(CONFIG_MPC8271) \
   || defined(CONFIG_MPC8272)
#define CONFIG_MPC8272_FAMILY	1
#endif
#if defined(CONFIG_MPC8272_FAMILY)
#define CONFIG_MPC8260	1
#endif
#include <asm/immap_8260.h>
#endif
#ifdef CONFIG_MPC86xx
#include <mpc86xx.h>
#include <asm/immap_86xx.h>
#endif
#ifdef CONFIG_MPC85xx
#include <mpc85xx.h>
#include <asm/immap_85xx.h>
#endif
#ifdef CONFIG_MPC83XX
#include <mpc83xx.h>
#include <asm/immap_83xx.h>
#endif
#ifdef	CONFIG_4xx
#include <ppc4xx.h>
#endif
#ifdef CONFIG_HYMOD
#include <board/hymod/hymod.h>
#endif
#ifdef CONFIG_ARM
#define asmlinkage	/* nothing */
#endif

#include <part.h>
#include <flash.h>
#include <image.h>

#ifdef	DEBUG
#define debug(fmt,args...)	printf (fmt ,##args)
#define debugX(level,fmt,args...) if (DEBUG>=level) printf(fmt,##args);
#else
#define debug(fmt,args...)
#define debugX(level,fmt,args...)
#endif	/* DEBUG */

#define BUG() do { \
	printf("BUG: failure at %s:%d/%s()!\n", __FILE__, __LINE__, __FUNCTION__); \
	panic("BUG!"); \
} while (0)
#define BUG_ON(condition) do { if (unlikely((condition)!=0)) BUG(); } while(0)

typedef void (interrupt_handler_t)(void *);

#include <asm/u-boot.h> /* boot information for Linux kernel */
#include <asm/global_data.h>	/* global data used for startup functions */

/*
 * enable common handling for all TQM8xxL/M boards:
 * - CONFIG_TQM8xxM will be defined for all TQM8xxM and TQM885D boards
 * - CONFIG_TQM8xxL will be defined for all TQM8xxL _and_ TQM8xxM boards
 */
#if defined(CONFIG_TQM823M) || defined(CONFIG_TQM850M) || \
    defined(CONFIG_TQM855M) || defined(CONFIG_TQM860M) || \
    defined(CONFIG_TQM862M) || defined(CONFIG_TQM866M) || \
    defined(CONFIG_TQM885D)
# ifndef CONFIG_TQM8xxM
#  define CONFIG_TQM8xxM
# endif
#endif
#if defined(CONFIG_TQM823L) || defined(CONFIG_TQM850L) || \
    defined(CONFIG_TQM855L) || defined(CONFIG_TQM860L) || \
    defined(CONFIG_TQM862L) || defined(CONFIG_TQM8xxM)
# ifndef CONFIG_TQM8xxL
#  define CONFIG_TQM8xxL
# endif
#endif

#ifndef CONFIG_SERIAL_MULTI

#if defined(CONFIG_8xx_CONS_SMC1) || defined(CONFIG_8xx_CONS_SMC2) \
 || defined(CONFIG_8xx_CONS_SCC1) || defined(CONFIG_8xx_CONS_SCC2) \
 || defined(CONFIG_8xx_CONS_SCC3) || defined(CONFIG_8xx_CONS_SCC4)

#define CONFIG_SERIAL_MULTI	1

#endif

#endif /* CONFIG_SERIAL_MULTI */

/*
 * General Purpose Utilities
 */
#define min(X, Y)				\
	({ typeof (X) __x = (X), __y = (Y);	\
		(__x < __y) ? __x : __y; })

#define max(X, Y)				\
	({ typeof (X) __x = (X), __y = (Y);	\
		(__x > __y) ? __x : __y; })


/*
 * Function Prototypes
 */

#ifdef CONFIG_SERIAL_SOFTWARE_FIFO
void	serial_buffered_init (void);
void	serial_buffered_putc (const char);
void	serial_buffered_puts (const char *);
int	serial_buffered_getc (void);
int	serial_buffered_tstc (void);
#endif /* CONFIG_SERIAL_SOFTWARE_FIFO */

void	hang		(void) __attribute__ ((noreturn));

/* */
long int initdram (int);
int	display_options (void);
void	print_size (ulong, const char *);

/* common/main.c */
void	main_loop	(void);
int	run_command	(const char *cmd, int flag);
int	readline	(const char *const prompt);
void	init_cmd_timeout(void);
void	reset_cmd_timeout(void);

/* lib_$(ARCH)/board.c */
void	board_init_f  (ulong);
void	board_init_r  (gd_t *, ulong);
int	checkboard    (void);
int	checkflash    (void);
int	checkdram     (void);
char *	strmhz(char *buf, long hz);
int	last_stage_init(void);
extern ulong monitor_flash_len;
#ifdef CFG_ID_EEPROM
int mac_read_from_eeprom(void);
#endif

/* common/flash.c */
void flash_perror (int);

/* common/cmd_autoscript.c */
int	autoscript (ulong addr);

/* common/cmd_bootm.c */
void	print_image_hdr (image_header_t *hdr);

extern ulong load_addr;		/* Default Load Address */

/* common/cmd_nvedit.c */
int	env_init     (void);
void	env_relocate (void);
char	*getenv	     (char *);
int	getenv_r     (char *name, char *buf, unsigned len);
int	saveenv	     (void);
#ifdef CONFIG_PPC		/* ARM version to be fixed! */
void inline setenv   (char *, char *);
#else
void	setenv	     (char *, char *);
#endif /* CONFIG_PPC */
#ifdef CONFIG_ARM
# include <asm/mach-types.h>
# include <asm/setup.h>
# include <asm/u-boot-arm.h>	/* ARM version to be fixed! */
#endif /* CONFIG_ARM */
#ifdef CONFIG_I386		/* x86 version to be fixed! */
# include <asm/u-boot-i386.h>
#endif /* CONFIG_I386 */

#ifdef CONFIG_AUTO_COMPLETE
int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
#endif

void	pci_init      (void);
void	pci_init_board(void);
void	pciinfo	      (int, int);

#if defined(CONFIG_PCI) && defined(CONFIG_440)
#   if defined(CFG_PCI_PRE_INIT)
    int	   pci_pre_init	       (struct pci_controller * );
#   endif
#   if defined(CFG_PCI_TARGET_INIT)
	void	pci_target_init	     (struct pci_controller *);
#   endif
#   if defined(CFG_PCI_MASTER_INIT)
	void	pci_master_init	     (struct pci_controller *);
#   endif
    int	    is_pci_host		(struct pci_controller *);
#if defined(CONFIG_440SPE)
   void pcie_setup_hoses(void);
#endif
#endif

int	misc_init_f   (void);
int	misc_init_r   (void);

/* common/exports.c */
void	jumptable_init(void);

/* common/memsize.c */
int	get_ram_size  (volatile long *, long);

/* $(BOARD)/$(BOARD).c */
void	reset_phy     (void);
void	fdc_hw_init   (void);

/* $(BOARD)/eeprom.c */
void eeprom_init  (void);
#ifndef CONFIG_SPI
int  eeprom_probe (unsigned dev_addr, unsigned offset);
#endif
int  eeprom_read  (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
int  eeprom_write (unsigned dev_addr, unsigned offset, uchar *buffer, unsigned cnt);
#ifdef CONFIG_LWMON
extern uchar pic_read  (uchar reg);
extern void  pic_write (uchar reg, uchar val);
#endif

/*
 * Set this up regardless of board
 * type, to prevent errors.
 */
#if defined(CONFIG_SPI) || !defined(CFG_I2C_EEPROM_ADDR)
# define CFG_DEF_EEPROM_ADDR 0
#else
# define CFG_DEF_EEPROM_ADDR CFG_I2C_EEPROM_ADDR
#endif /* CONFIG_SPI || !defined(CFG_I2C_EEPROM_ADDR) */

#if defined(CONFIG_SPI)
extern void spi_init_f (void);
extern void spi_init_r (void);
extern ssize_t spi_read	 (uchar *, int, uchar *, int);
extern ssize_t spi_write (uchar *, int, uchar *, int);
#endif

#ifdef CONFIG_RPXCLASSIC
void rpxclassic_init (void);
#endif

void rpxlite_init (void);

#ifdef CONFIG_MBX
/* $(BOARD)/mbx8xx.c */