arch/arm/mach-s3c2410/cpu.h

   1 /* arch/arm/mach-s3c2410/cpu.h
   2  *
   3  * Copyright (c) 2004-2005 Simtec Electronics
   4  *      Ben Dooks <ben@simtec.co.uk>
   5  *
   6  * Header file for S3C24XX CPU support
   7  *
   8  * This program is free software; you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License version 2 as
  10  * published by the Free Software Foundation.
  11  *
  12  * Modifications:
  13  *     24-Aug-2004 BJD  Start of generic S3C24XX support
  14  *     18-Oct-2004 BJD  Moved board struct into this file
  15  *     04-Jan-2005 BJD  New uart initialisation
  16  *     10-Jan-2005 BJD  Moved generic init here, specific to cpu headers
  17  *     14-Jan-2005 BJD  Added s3c24xx_init_clocks() call
  18  *     10-Mar-2005 LCVR Changed S3C2410_{VA,SZ} to S3C24XX_{VA,SZ} & IODESC_ENT
  19  *     14-Mar-2005 BJD  Updated for __iomem
  20 */
  21
  22 /* todo - fix when rmk changes iodescs to use `void __iomem *` */
  23
  24 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, S3C2410_PA_##x, S3C24XX_SZ_##x, MT_DEVICE }
  25
  26 #ifndef MHZ
  27 #define MHZ (1000*1000)
  28 #endif
  29
  30 #define print_mhz(m) ((m) / MHZ), ((m / 1000) % 1000)
  31
  32 /* forward declaration */
  33 struct s3c2410_uartcfg;
  34 struct map_desc;
  35
  36 /* core initialisation functions */
  37
  38 extern void s3c24xx_init_irq(void);
  39
  40 extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
  41
  42 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
  43
  44 extern void s3c24xx_init_clocks(int xtal);
  45
  46 /* the board structure is used at first initialsation time
  47  * to get info such as the devices to register for this
  48  * board. This is done because platfrom_add_devices() cannot
  49  * be called from the map_io entry.
  50 */
  51
  52 struct s3c24xx_board {
  53         struct platform_device  **devices;
  54         unsigned int              devices_count;
  55
  56         struct clk              **clocks;
  57         unsigned int              clocks_count;
  58 };
  59
  60 extern void s3c24xx_set_board(struct s3c24xx_board *board);
  61
  62 /* timer for 2410/2440 */
  63
  64 struct sys_timer;
  65 extern struct sys_timer s3c24xx_timer;
  66
  67 /* system device classes */
  68
  69 extern struct sysdev_class s3c2440_sysclass;