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 39 extern void bfin_setup_caches(unsigned int cpu); 40 extern void bfin_setup_cpudata(unsigned int cpu); 41 42 extern unsigned long get_cclk(void); 43 extern unsigned long get_sclk(void); 44 #ifdef CONFIG_BF60x 45 extern unsigned long get_sclk0(void); 46 extern unsigned long get_sclk1(void); 47 extern unsigned long get_dclk(void); 48 #endif 49 extern unsigned long sclk_to_usecs(unsigned long sclk); 50 extern unsigned long usecs_to_sclk(unsigned long usecs); 51 52 struct pt_regs; 53 #if defined(CONFIG_DEBUG_VERBOSE) 54 extern void dump_bfin_process(struct pt_regs *regs); 55 extern void dump_bfin_mem(struct pt_regs *regs); 56 extern 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 63 extern void *l1_data_A_sram_alloc(size_t); 64 extern void *l1_data_B_sram_alloc(size_t); 65 extern void *l1_inst_sram_alloc(size_t); 66 extern void *l1_data_sram_alloc(size_t); 67 extern void *l1_data_sram_zalloc(size_t); 68 extern void *l2_sram_alloc(size_t); 69 extern void *l2_sram_zalloc(size_t); 70 extern int l1_data_A_sram_free(const void*); 71 extern int l1_data_B_sram_free(const void*); 72 extern int l1_inst_sram_free(const void*); 73 extern int l1_data_sram_free(const void*); 74 extern int l2_sram_free(const void *); 75 extern 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 82 extern void *sram_alloc_with_lsl(size_t, unsigned long); 83 extern int sram_free_with_lsl(const void*); 84 85 extern void *isram_memcpy(void *dest, const void *src, size_t n); 86 87 extern const char bfin_board_name[]; 88 89 extern unsigned long bfin_sic_iwr[]; 90 extern unsigned vr_wakeup; 91 extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */ 92 93 #endif 94 95 #endif /* _BLACKFIN_H_ */ 96