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
  13 /* todo - fix when rmk changes iodescs to use `void __iomem *` */
  14
  15 #define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
  16
  17 #ifndef MHZ
  18 #define MHZ (1000*1000)
  19 #endif
  20
  21 #define print_mhz(m) ((m) / MHZ), ((m / 1000) % 1000)
  22
  23 /* forward declaration */
  24 struct s3c24xx_uart_resources;
  25 struct platform_device;
  26 struct s3c2410_uartcfg;
  27 struct map_desc;
  28
  29 /* core initialisation functions */
  30
  31 extern void s3c24xx_init_irq(void);
  32
  33 extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
  34
  35 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
  36
  37 extern void s3c24xx_init_clocks(int xtal);
  38
  39 extern void s3c24xx_init_uartdevs(char *name,
  40                                   struct s3c24xx_uart_resources *res,
  41                                   struct s3c2410_uartcfg *cfg, int no);
  42
  43 /* the board structure is used at first initialsation time
  44  * to get info such as the devices to register for this
  45  * board. This is done because platfrom_add_devices() cannot
  46  * be called from the map_io entry.
  47 */
  48
  49 struct s3c24xx_board {
  50         struct platform_device  **devices;
  51         unsigned int              devices_count;
  52
  53         struct clk              **clocks;
  54         unsigned int              clocks_count;
  55 };
  56
  57 extern void s3c24xx_set_board(struct s3c24xx_board *board);
  58
  59 /* timer for 2410/2440 */
  60
  61 struct sys_timer;
  62 extern struct sys_timer s3c24xx_timer;
  63
  64 /* system device classes */
  65
  66 extern struct sysdev_class s3c2410_sysclass;
  67 extern struct sysdev_class s3c2412_sysclass;
  68 extern struct sysdev_class s3c2440_sysclass;
  69 extern struct sysdev_class s3c2442_sysclass;