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Diffstat (limited to 'arch/blackfin/include/asm/bfin-global.h')
| -rw-r--r-- | arch/blackfin/include/asm/bfin-global.h | 117 |
1 files changed, 117 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h new file mode 100644 index 00000000000..7ba70de66f2 --- /dev/null +++ b/arch/blackfin/include/asm/bfin-global.h @@ -0,0 +1,117 @@ +/* + * File: include/asm-blackfin/bfin-global.h + * Based on: + * Author: * + * Created: + * Description: Global extern defines for blackfin + * + * Modified: + * Copyright 2004-2006 Analog Devices Inc. + * + * Bugs: Enter bugs at http://blackfin.uclinux.org/ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, see the file COPYING, or write + * to the Free Software Foundation, Inc., + * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#ifndef _BFIN_GLOBAL_H_ +#define _BFIN_GLOBAL_H_ + +#ifndef __ASSEMBLY__ + +#include <asm-generic/sections.h> +#include <asm/ptrace.h> +#include <asm/user.h> +#include <linux/linkage.h> +#include <linux/types.h> + +#if defined(CONFIG_DMA_UNCACHED_4M) +# define DMA_UNCACHED_REGION (4 * 1024 * 1024) +#elif defined(CONFIG_DMA_UNCACHED_2M) +# define DMA_UNCACHED_REGION (2 * 1024 * 1024) +#elif defined(CONFIG_DMA_UNCACHED_1M) +# define DMA_UNCACHED_REGION (1024 * 1024) +#else +# define DMA_UNCACHED_REGION (0) +#endif + +extern unsigned long get_cclk(void); +extern unsigned long get_sclk(void); +extern unsigned long sclk_to_usecs(unsigned long sclk); +extern unsigned long usecs_to_sclk(unsigned long usecs); + +extern void dump_bfin_process(struct pt_regs *regs); +extern void dump_bfin_mem(struct pt_regs *regs); +extern void dump_bfin_trace_buffer(void); + +/* init functions only */ +extern int init_arch_irq(void); +extern void bfin_icache_init(void); +extern void bfin_dcache_init(void); +extern void init_exception_vectors(void); +extern void program_IAR(void); + +extern void bfin_reset(void); +extern asmlinkage void lower_to_irq14(void); +extern asmlinkage void bfin_return_from_exception(void); +extern asmlinkage void evt14_softirq(void); +extern asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs); +extern int bfin_internal_set_wake(unsigned int irq, unsigned int state); + +extern void *l1_data_A_sram_alloc(size_t); +extern void *l1_data_B_sram_alloc(size_t); +extern void *l1_inst_sram_alloc(size_t); +extern void *l1_data_sram_alloc(size_t); +extern void *l1_data_sram_zalloc(size_t); +extern void *l2_sram_alloc(size_t); +extern void *l2_sram_zalloc(size_t); +extern int l1_data_A_sram_free(const void*); +extern int l1_data_B_sram_free(const void*); +extern int l1_inst_sram_free(const void*); +extern int l1_data_sram_free(const void*); +extern int l2_sram_free(const void *); +extern int sram_free(const void*); + +#define L1_INST_SRAM 0x00000001 +#define L1_DATA_A_SRAM 0x00000002 +#define L1_DATA_B_SRAM 0x00000004 +#define L1_DATA_SRAM 0x00000006 +#define L2_SRAM 0x00000008 +extern void *sram_alloc_with_lsl(size_t, unsigned long); +extern int sram_free_with_lsl(const void*); + +extern const char bfin_board_name[]; + +extern unsigned long bfin_sic_iwr[]; +extern unsigned vr_wakeup; +extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */ +extern unsigned long _ramstart, _ramend, _rambase; +extern unsigned long memory_start, memory_end, physical_mem_end; +extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[], + _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[], + _stext_l2[], _etext_l2[], _sdata_l2[], _edata_l2[], _sbss_l2[], + _ebss_l2[], _l2_lma_start[]; + +/* only used when CONFIG_MTD_UCLINUX */ +extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size; + +#ifdef CONFIG_BFIN_ICACHE_LOCK +extern void cache_grab_lock(int way); +extern void cache_lock(int way); +#endif + +#endif + +#endif /* _BLACKFIN_H_ */ |