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 <asm/sections.h>
  15 #include <asm/ptrace.h>
  16 #include <asm/user.h>
  17 #include <linux/linkage.h>
  18 #include <linux/types.h>
  19
  20 #if defined(CONFIG_DMA_UNCACHED_4M)
  21 # define DMA_UNCACHED_REGION (4 * 1024 * 1024)
  22 #elif defined(CONFIG_DMA_UNCACHED_2M)
  23 # define DMA_UNCACHED_REGION (2 * 1024 * 1024)
  24 #elif defined(CONFIG_DMA_UNCACHED_1M)
  25 # define DMA_UNCACHED_REGION (1024 * 1024)
  26 #else
  27 # define DMA_UNCACHED_REGION (0)
  28 #endif
  29
  30 extern void bfin_setup_caches(unsigned int cpu);
  31 extern void bfin_setup_cpudata(unsigned int cpu);
  32
  33 extern unsigned long get_cclk(void);
  34 extern unsigned long get_sclk(void);
  35 extern unsigned long sclk_to_usecs(unsigned long sclk);
  36 extern unsigned long usecs_to_sclk(unsigned long usecs);
  37
  38 extern void dump_bfin_process(struct pt_regs *regs);
  39 extern void dump_bfin_mem(struct pt_regs *regs);
  40 extern void dump_bfin_trace_buffer(void);
  41
  42 /* init functions only */
  43 extern int init_arch_irq(void);
  44 extern void init_exception_vectors(void);
  45 extern void program_IAR(void);
  46
  47 extern asmlinkage void lower_to_irq14(void);
  48 extern asmlinkage void bfin_return_from_exception(void);
  49 extern asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs);
  50 extern int bfin_internal_set_wake(unsigned int irq, unsigned int state);
  51
  52 extern void *l1_data_A_sram_alloc(size_t);
  53 extern void *l1_data_B_sram_alloc(size_t);
  54 extern void *l1_inst_sram_alloc(size_t);
  55 extern void *l1_data_sram_alloc(size_t);
  56 extern void *l1_data_sram_zalloc(size_t);
  57 extern void *l2_sram_alloc(size_t);
  58 extern void *l2_sram_zalloc(size_t);
  59 extern int l1_data_A_sram_free(const void*);
  60 extern int l1_data_B_sram_free(const void*);
  61 extern int l1_inst_sram_free(const void*);
  62 extern int l1_data_sram_free(const void*);
  63 extern int l2_sram_free(const void *);
  64 extern int sram_free(const void*);
  65
  66 #define L1_INST_SRAM            0x00000001
  67 #define L1_DATA_A_SRAM          0x00000002
  68 #define L1_DATA_B_SRAM          0x00000004
  69 #define L1_DATA_SRAM            0x00000006
  70 #define L2_SRAM                 0x00000008
  71 extern void *sram_alloc_with_lsl(size_t, unsigned long);
  72 extern int sram_free_with_lsl(const void*);
  73
  74 extern void *isram_memcpy(void *dest, const void *src, size_t n);
  75
  76 extern const char bfin_board_name[];
  77
  78 extern unsigned long bfin_sic_iwr[];
  79 extern unsigned vr_wakeup;
  80 extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
  81
  82 #endif
  83
  84 #endif                          /* _BLACKFIN_H_ */