1/*
2 * Global extern defines for blackfin
3 *
4 * Copyright 2006-2009 Analog Devices Inc.
5 *
6 * Licensed under the GPL-2 or later.
7 */
8
9#ifndef _BFIN_GLOBAL_H_
10#define _BFIN_GLOBAL_H_
11
12#ifndef __ASSEMBLY__
13
14#include <linux/linkage.h>
15#include <linux/types.h>
16
17#if defined(CONFIG_DMA_UNCACHED_32M)
18# define DMA_UNCACHED_REGION (32 * 1024 * 1024)
19#elif defined(CONFIG_DMA_UNCACHED_16M)
20# define DMA_UNCACHED_REGION (16 * 1024 * 1024)
21#elif defined(CONFIG_DMA_UNCACHED_8M)
22# define DMA_UNCACHED_REGION (8 * 1024 * 1024)
23#elif defined(CONFIG_DMA_UNCACHED_4M)
24# define DMA_UNCACHED_REGION (4 * 1024 * 1024)
25#elif defined(CONFIG_DMA_UNCACHED_2M)
26# define DMA_UNCACHED_REGION (2 * 1024 * 1024)
27#elif defined(CONFIG_DMA_UNCACHED_1M)
28# define DMA_UNCACHED_REGION (1024 * 1024)
29#elif defined(CONFIG_DMA_UNCACHED_512K)
30# define DMA_UNCACHED_REGION (512 * 1024)
31#elif defined(CONFIG_DMA_UNCACHED_256K)
32# define DMA_UNCACHED_REGION (256 * 1024)
33#elif defined(CONFIG_DMA_UNCACHED_128K)
34# define DMA_UNCACHED_REGION (128 * 1024)
35#else
36# define DMA_UNCACHED_REGION (0)
37#endif
38
39extern void bfin_setup_caches(unsigned int cpu);
40extern void bfin_setup_cpudata(unsigned int cpu);
41
42extern unsigned long get_cclk(void);
43extern unsigned long get_sclk(void);
44#ifdef CONFIG_BF60x
45extern unsigned long get_sclk0(void);
46extern unsigned long get_sclk1(void);
47extern unsigned long get_dclk(void);
48#endif
49extern unsigned long sclk_to_usecs(unsigned long sclk);
50extern unsigned long usecs_to_sclk(unsigned long usecs);
51
52struct pt_regs;
53#if defined(CONFIG_DEBUG_VERBOSE)
54extern void dump_bfin_process(struct pt_regs *regs);
55extern void dump_bfin_mem(struct pt_regs *regs);
56extern void dump_bfin_trace_buffer(void);
57#else
58#define dump_bfin_process(regs)
59#define dump_bfin_mem(regs)
60#define dump_bfin_trace_buffer()
61#endif
62
63extern void *l1_data_A_sram_alloc(size_t);
64extern void *l1_data_B_sram_alloc(size_t);
65extern void *l1_inst_sram_alloc(size_t);
66extern void *l1_data_sram_alloc(size_t);
67extern void *l1_data_sram_zalloc(size_t);
68extern void *l2_sram_alloc(size_t);
69extern void *l2_sram_zalloc(size_t);
70extern int l1_data_A_sram_free(const void*);
71extern int l1_data_B_sram_free(const void*);
72extern int l1_inst_sram_free(const void*);
73extern int l1_data_sram_free(const void*);
74extern int l2_sram_free(const void *);
75extern int sram_free(const void*);
76
77#define L1_INST_SRAM		0x00000001
78#define L1_DATA_A_SRAM		0x00000002
79#define L1_DATA_B_SRAM		0x00000004
80#define L1_DATA_SRAM		0x00000006
81#define L2_SRAM			0x00000008
82extern void *sram_alloc_with_lsl(size_t, unsigned long);
83extern int sram_free_with_lsl(const void*);
84
85extern void *isram_memcpy(void *dest, const void *src, size_t n);
86
87extern const char bfin_board_name[];
88
89extern unsigned long bfin_sic_iwr[];
90extern unsigned vr_wakeup;
91extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
92
93#endif
94
95#endif				/* _BLACKFIN_H_ */
96