tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
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
50extern unsigned long get_cclk(void);
51extern unsigned long get_sclk(void);
52extern unsigned long sclk_to_usecs(unsigned long sclk);
53extern unsigned long usecs_to_sclk(unsigned long usecs);
54
55extern void dump_bfin_process(struct pt_regs *regs);
56extern void dump_bfin_mem(struct pt_regs *regs);
57extern void dump_bfin_trace_buffer(void);
58
59extern int init_arch_irq(void);
60extern void bfin_reset(void);
61extern void _cplb_hdr(void);
62/* Blackfin cache functions */
63extern void bfin_icache_init(void);
64extern void bfin_dcache_init(void);
65extern int read_iloc(void);
66extern int bfin_console_init(void);
67extern asmlinkage void lower_to_irq14(void);
68extern asmlinkage void bfin_return_from_exception(void);
69extern void init_exception_vectors(void);
70extern void init_dma(void);
71extern void program_IAR(void);
72extern void evt14_softirq(void);
73extern asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs);
74extern void bfin_gpio_interrupt_setup(int irq, int irq_pfx, int type);
75extern int bfin_internal_set_wake(unsigned int irq, unsigned int state);
76
77extern asmlinkage void finish_atomic_sections (struct pt_regs *regs);
78extern char fixed_code_start;
79extern char fixed_code_end;
80extern int atomic_xchg32(void);
81extern int atomic_cas32(void);
82extern int atomic_add32(void);
83extern int atomic_sub32(void);
84extern int atomic_ior32(void);
85extern int atomic_and32(void);
86extern int atomic_xor32(void);
87extern void safe_user_instruction(void);
88extern void sigreturn_stub(void);
89
90extern void *l1_data_A_sram_alloc(size_t);
91extern void *l1_data_B_sram_alloc(size_t);
92extern void *l1_inst_sram_alloc(size_t);
93extern void *l1_data_sram_alloc(size_t);
94extern void *l1_data_sram_zalloc(size_t);
95extern int l1_data_A_sram_free(const void*);
96extern int l1_data_B_sram_free(const void*);
97extern int l1_inst_sram_free(const void*);
98extern int l1_data_sram_free(const void*);
99extern int sram_free(const void*);
100
101#define L1_INST_SRAM 0x00000001
102#define L1_DATA_A_SRAM 0x00000002
103#define L1_DATA_B_SRAM 0x00000004
104#define L1_DATA_SRAM 0x00000006
105extern void *sram_alloc_with_lsl(size_t, unsigned long);
106extern int sram_free_with_lsl(const void*);
107
108extern const char bfin_board_name[];
109extern unsigned long wall_jiffies;
110
111extern unsigned long bfin_sic_iwr[];
112extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
113extern struct file_operations dpmc_fops;
114extern unsigned long _ramstart, _ramend, _rambase;
115extern unsigned long memory_start, memory_end, physical_mem_end;
116extern char _stext_l1[], _etext_l1[], _sdata_l1[], _edata_l1[], _sbss_l1[],
117 _ebss_l1[], _l1_lma_start[], _sdata_b_l1[], _ebss_b_l1[];
118
119#ifdef CONFIG_MTD_UCLINUX
120extern unsigned long memory_mtd_start, memory_mtd_end, mtd_size;
121#endif
122
123#endif
124
125#endif /* _BLACKFIN_H_ */