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); 38extern unsigned long sclk_to_usecs(unsigned long sclk); 39extern unsigned long usecs_to_sclk(unsigned long usecs); 40 41struct pt_regs; 42#if defined(CONFIG_DEBUG_VERBOSE) 43extern void dump_bfin_process(struct pt_regs *regs); 44extern void dump_bfin_mem(struct pt_regs *regs); 45extern 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 */ 53extern int init_arch_irq(void); 54extern void init_exception_vectors(void); 55extern void program_IAR(void); 56 57extern asmlinkage void lower_to_irq14(void); 58extern asmlinkage void bfin_return_from_exception(void); 59extern asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs); 60extern int bfin_internal_set_wake(unsigned int irq, unsigned int state); 61 62extern void *l1_data_A_sram_alloc(size_t); 63extern void *l1_data_B_sram_alloc(size_t); 64extern void *l1_inst_sram_alloc(size_t); 65extern void *l1_data_sram_alloc(size_t); 66extern void *l1_data_sram_zalloc(size_t); 67extern void *l2_sram_alloc(size_t); 68extern void *l2_sram_zalloc(size_t); 69extern int l1_data_A_sram_free(const void*); 70extern int l1_data_B_sram_free(const void*); 71extern int l1_inst_sram_free(const void*); 72extern int l1_data_sram_free(const void*); 73extern int l2_sram_free(const void *); 74extern 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 81extern void *sram_alloc_with_lsl(size_t, unsigned long); 82extern int sram_free_with_lsl(const void*); 83 84extern void *isram_memcpy(void *dest, const void *src, size_t n); 85 86extern const char bfin_board_name[]; 87 88extern unsigned long bfin_sic_iwr[]; 89extern unsigned vr_wakeup; 90extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */ 91 92#endif 93 94#endif /* _BLACKFIN_H_ */ 95