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
  33 extern void bfin_setup_caches(unsigned int cpu);
  34 extern void bfin_setup_cpudata(unsigned int cpu);
  35
  36 extern unsigned long get_cclk(void);
  37 extern unsigned long get_sclk(void);
  38 extern unsigned long sclk_to_usecs(unsigned long sclk);
  39 extern unsigned long usecs_to_sclk(unsigned long usecs);
  40
  41 struct pt_regs;
  42 #if defined(CONFIG_DEBUG_VERBOSE)
  43 extern void dump_bfin_process(struct pt_regs *regs);
  44 extern void dump_bfin_mem(struct pt_regs *regs);
  45 extern void dump_bfin_trace_buffer(void);
  46 #else
  47 #define dump_bfin_process(regs)
  48 #define dump_bfin_mem(regs)
  49 #define dump_bfin_trace_buffer()
  50 #endif
  51
  52 /* init functions only */
  53 extern int init_arch_irq(void);
  54 extern void init_exception_vectors(void);
  55 extern void program_IAR(void);
  56
  57 extern asmlinkage void lower_to_irq14(void);
  58 extern asmlinkage void bfin_return_from_exception(void);
  59 extern asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs);
  60 extern int bfin_internal_set_wake(unsigned int irq, unsigned int state);
  61
  62 extern void *l1_data_A_sram_alloc(size_t);
  63 extern void *l1_data_B_sram_alloc(size_t);
  64 extern void *l1_inst_sram_alloc(size_t);
  65 extern void *l1_data_sram_alloc(size_t);
  66 extern void *l1_data_sram_zalloc(size_t);
  67 extern void *l2_sram_alloc(size_t);
  68 extern void *l2_sram_zalloc(size_t);
  69 extern int l1_data_A_sram_free(const void*);
  70 extern int l1_data_B_sram_free(const void*);
  71 extern int l1_inst_sram_free(const void*);
  72 extern int l1_data_sram_free(const void*);
  73 extern int l2_sram_free(const void *);
  74 extern int sram_free(const void*);
  75
  76 #define L1_INST_SRAM            0x00000001
  77 #define L1_DATA_A_SRAM          0x00000002
  78 #define L1_DATA_B_SRAM          0x00000004
  79 #define L1_DATA_SRAM            0x00000006
  80 #define L2_SRAM                 0x00000008
  81 extern void *sram_alloc_with_lsl(size_t, unsigned long);
  82 extern int sram_free_with_lsl(const void*);
  83
  84 extern void *isram_memcpy(void *dest, const void *src, size_t n);
  85
  86 extern const char bfin_board_name[];
  87
  88 extern unsigned long bfin_sic_iwr[];
  89 extern unsigned vr_wakeup;
  90 extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
  91
  92 #endif
  93
  94 #endif                          /* _BLACKFIN_H_ */