arch/arm/plat-s3c/include/plat/cpu.h

   1 /* linux/arch/arm/plat-s3c/include/plat/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 /* per-cpu initialisation function table. */
  30
  31 struct cpu_table {
  32         unsigned long   idcode;
  33         unsigned long   idmask;
  34         void            (*map_io)(void);
  35         void            (*init_uarts)(struct s3c2410_uartcfg *cfg, int no);
  36         void            (*init_clocks)(int xtal);
  37         int             (*init)(void);
  38         const char      *name;
  39 };
  40
  41 extern void s3c_init_cpu(unsigned long idcode,
  42                          struct cpu_table *cpus, unsigned int cputab_size);
  43
  44 /* core initialisation functions */
  45
  46 extern void s3c24xx_init_irq(void);
  47
  48 extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
  49
  50 extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
  51
  52 extern void s3c24xx_init_clocks(int xtal);
  53
  54 extern void s3c24xx_init_uartdevs(char *name,
  55                                   struct s3c24xx_uart_resources *res,
  56                                   struct s3c2410_uartcfg *cfg, int no);
  57
  58 /* timer for 2410/2440 */
  59
  60 struct sys_timer;
  61 extern struct sys_timer s3c24xx_timer;
  62
  63 /* system device classes */
  64
  65 extern struct sysdev_class s3c2410_sysclass;
  66 extern struct sysdev_class s3c2412_sysclass;
  67 extern struct sysdev_class s3c2440_sysclass;
  68 extern struct sysdev_class s3c2442_sysclass;
  69 extern struct sysdev_class s3c2443_sysclass;