LXR linux/arch/blackfin/include/asm/bfin-global.h

   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