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_4M)
  18# define DMA_UNCACHED_REGION (4 * 1024 * 1024)
  19#elif defined(CONFIG_DMA_UNCACHED_2M)
  20# define DMA_UNCACHED_REGION (2 * 1024 * 1024)
  21#elif defined(CONFIG_DMA_UNCACHED_1M)
  22# define DMA_UNCACHED_REGION (1024 * 1024)
  23#elif defined(CONFIG_DMA_UNCACHED_512K)
  24# define DMA_UNCACHED_REGION (512 * 1024)
  25#elif defined(CONFIG_DMA_UNCACHED_256K)
  26# define DMA_UNCACHED_REGION (256 * 1024)
  27#elif defined(CONFIG_DMA_UNCACHED_128K)
  28# define DMA_UNCACHED_REGION (128 * 1024)
  29#else
  30# define DMA_UNCACHED_REGION (0)
  31#endif
  32
  33extern void bfin_setup_caches(unsigned int cpu);
  34extern void bfin_setup_cpudata(unsigned int cpu);
  35
  36extern unsigned long get_cclk(void);
  37extern unsigned long get_sclk(void);
  38#ifdef CONFIG_BF60x
  39extern unsigned long get_sclk0(void);
  40extern unsigned long get_sclk1(void);
  41extern unsigned long get_dclk(void);
  42#endif
  43extern unsigned long sclk_to_usecs(unsigned long sclk);
  44extern unsigned long usecs_to_sclk(unsigned long usecs);
  45
  46struct pt_regs;
  47#if defined(CONFIG_DEBUG_VERBOSE)
  48extern void dump_bfin_process(struct pt_regs *regs);
  49extern void dump_bfin_mem(struct pt_regs *regs);
  50extern void dump_bfin_trace_buffer(void);
  51#else
  52#define dump_bfin_process(regs)
  53#define dump_bfin_mem(regs)
  54#define dump_bfin_trace_buffer()
  55#endif
  56
  57extern void *l1_data_A_sram_alloc(size_t);
  58extern void *l1_data_B_sram_alloc(size_t);
  59extern void *l1_inst_sram_alloc(size_t);
  60extern void *l1_data_sram_alloc(size_t);
  61extern void *l1_data_sram_zalloc(size_t);
  62extern void *l2_sram_alloc(size_t);
  63extern void *l2_sram_zalloc(size_t);
  64extern int l1_data_A_sram_free(const void*);
  65extern int l1_data_B_sram_free(const void*);
  66extern int l1_inst_sram_free(const void*);
  67extern int l1_data_sram_free(const void*);
  68extern int l2_sram_free(const void *);
  69extern int sram_free(const void*);
  70
  71#define L1_INST_SRAM            0x00000001
  72#define L1_DATA_A_SRAM          0x00000002
  73#define L1_DATA_B_SRAM          0x00000004
  74#define L1_DATA_SRAM            0x00000006
  75#define L2_SRAM                 0x00000008
  76extern void *sram_alloc_with_lsl(size_t, unsigned long);
  77extern int sram_free_with_lsl(const void*);
  78
  79extern void *isram_memcpy(void *dest, const void *src, size_t n);
  80
  81extern const char bfin_board_name[];
  82
  83extern unsigned long bfin_sic_iwr[];
  84extern unsigned vr_wakeup;
  85extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
  86
  87#endif
  88
  89#endif                          /* _BLACKFIN_H_ */
  90