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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* 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
Lucas Correia Villa Real0367a8d2006-01-26 15:20:50 +000020 * 15-Jan-2006 LCVR Updated S3C2410_PA_##x to new S3C24XX_PA_##x macro
Linus Torvalds1da177e2005-04-16 15:20:36 -070021*/
22
23/* todo - fix when rmk changes iodescs to use `void __iomem *` */
24
Lucas Correia Villa Real0367a8d2006-01-26 15:20:50 +000025#define IODESC_ENT(x) { (unsigned long)S3C24XX_VA_##x, __phys_to_pfn(S3C24XX_PA_##x), S3C24XX_SZ_##x, MT_DEVICE }
Linus Torvalds1da177e2005-04-16 15:20:36 -070026
27#ifndef MHZ
28#define MHZ (1000*1000)
29#endif
30
31#define print_mhz(m) ((m) / MHZ), ((m / 1000) % 1000)
32
33/* forward declaration */
Ben Dooks66a9b492006-06-18 23:04:05 +010034struct s3c24xx_uart_resources;
35struct platform_device;
Linus Torvalds1da177e2005-04-16 15:20:36 -070036struct s3c2410_uartcfg;
37struct map_desc;
38
39/* core initialisation functions */
40
41extern void s3c24xx_init_irq(void);
42
43extern void s3c24xx_init_io(struct map_desc *mach_desc, int size);
44
45extern void s3c24xx_init_uarts(struct s3c2410_uartcfg *cfg, int no);
46
47extern void s3c24xx_init_clocks(int xtal);
48
Ben Dooks66a9b492006-06-18 23:04:05 +010049extern void s3c24xx_init_uartdevs(char *name,
50 struct s3c24xx_uart_resources *res,
51 struct s3c2410_uartcfg *cfg, int no);
52
Linus Torvalds1da177e2005-04-16 15:20:36 -070053/* the board structure is used at first initialsation time
54 * to get info such as the devices to register for this
55 * board. This is done because platfrom_add_devices() cannot
56 * be called from the map_io entry.
57*/
58
59struct s3c24xx_board {
60 struct platform_device **devices;
61 unsigned int devices_count;
62
63 struct clk **clocks;
64 unsigned int clocks_count;
65};
66
67extern void s3c24xx_set_board(struct s3c24xx_board *board);
68
69/* timer for 2410/2440 */
70
71struct sys_timer;
72extern struct sys_timer s3c24xx_timer;
73
74/* system device classes */
75
76extern struct sysdev_class s3c2440_sysclass;