1 /* 2 * File: include/asm-blackfin/bfin-global.h 3 * Based on: 4 * Author: * 5 * Created: 6 * Description: Global extern defines for blackfin 7 * 8 * Modified: 9 * Copyright 2004-2006 Analog Devices Inc. 10 * 11 * Bugs: Enter bugs at http://blackfin.uclinux.org/ 12 * 13 * This program is free software; you can redistribute it and/or modify 14 * it under the terms of the GNU General Public License as published by 15 * the Free Software Foundation; either version 2 of the License, or 16 * (at your option) any later version. 17 * 18 * This program is distributed in the hope that it will be useful, 19 * but WITHOUT ANY WARRANTY; without even the implied warranty of 20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 * GNU General Public License for more details. 22 * 23 * You should have received a copy of the GNU General Public License 24 * along with this program; if not, see the file COPYING, or write 25 * to the Free Software Foundation, Inc., 26 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA 27 */ 28 29 #ifndef _BFIN_GLOBAL_H_ 30 #define _BFIN_GLOBAL_H_ 31 32 #ifndef __ASSEMBLY__ 33 34 #include <asm-generic/sections.h> 35 #include <asm/ptrace.h> 36 #include <asm/user.h> 37 #include <linux/linkage.h> 38 #include <linux/types.h> 39 40 #if defined(CONFIG_DMA_UNCACHED_4M) 41 # define DMA_UNCACHED_REGION (4 * 1024 * 1024) 42 #elif defined(CONFIG_DMA_UNCACHED_2M) 43 # define DMA_UNCACHED_REGION (2 * 1024 * 1024) 44 #elif defined(CONFIG_DMA_UNCACHED_1M) 45 # define DMA_UNCACHED_REGION (1024 * 1024) 46 #else 47 # define DMA_UNCACHED_REGION (0) 48 #endif 49 50 extern void bfin_setup_caches(unsigned int cpu); 51 extern void bfin_setup_cpudata(unsigned int cpu); 52 53 extern unsigned long get_cclk(void); 54 extern unsigned long get_sclk(void); 55 extern unsigned long sclk_to_usecs(unsigned long sclk); 56 extern unsigned long usecs_to_sclk(unsigned long usecs); 57 58 extern void dump_bfin_process(struct pt_regs *regs); 59 extern void dump_bfin_mem(struct pt_regs *regs); 60 extern void dump_bfin_trace_buffer(void); 61 62 /* init functions only */ 63 extern int init_arch_irq(void); 64 extern void init_exception_vectors(void); 65 extern void program_IAR(void); 66 67 extern asmlinkage void lower_to_irq14(void); 68 extern asmlinkage void bfin_return_from_exception(void); 69 extern asmlinkage void evt14_softirq(void); 70 extern asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs); 71 extern int bfin_internal_set_wake(unsigned int irq, unsigned int state); 72 73 extern void *l1_data_A_sram_alloc(size_t); 74 extern void *l1_data_B_sram_alloc(size_t); 75 extern void *l1_inst_sram_alloc(size_t); 76 extern void *l1_data_sram_alloc(size_t); 77 extern void *l1_data_sram_zalloc(size_t); 78 extern void *l2_sram_alloc(size_t); 79 extern void *l2_sram_zalloc(size_t); 80 extern int l1_data_A_sram_free(const void*); 81 extern int l1_data_B_sram_free(const void*); 82 extern int l1_inst_sram_free(const void*); 83 extern int l1_data_sram_free(const void*); 84 extern int l2_sram_free(const void *); 85 extern int sram_free(const void*); 86 87 #define L1_INST_SRAM 0x00000001 88 #define L1_DATA_A_SRAM 0x00000002 89 #define L1_DATA_B_SRAM 0x00000004 90 #define L1_DATA_SRAM 0x00000006 91 #define L2_SRAM 0x00000008 92 extern void *sram_alloc_with_lsl(size_t, unsigned long); 93 extern int sram_free_with_lsl(const void*); 94 95 extern void *isram_memcpy(void *dest, const void *src, size_t n); 96 97 extern const char bfin_board_name[]; 98 99 extern unsigned long bfin_sic_iwr[]; 100 extern unsigned vr_wakeup; 101 extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */ 102 extern unsigned long _ramstart, _ramend, _rambase; 103 extern unsigned long memory_start, memory_end, physical_mem_end; 104 extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[], 105 _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _sbss_b_l1[], _ebss_b_l1[], 106 _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[], 107 _ebss_l2[], _l2_lma_start[]; 108 109 /* only used when MTD_UCLINUX */ 110 extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size; 111 112 #ifdef CONFIG_BFIN_ICACHE_LOCK 113 extern void cache_grab_lock(int way); 114 extern void bfin_cache_lock(int way); 115 #endif 116 117 #endif 118 119 #endif /* _BLACKFIN_H_ */ 120