1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
/*
* File: include/asm-blackfin/cplbinit.h
* Based on:
* Author:
*
* Created:
* Description:
*
* 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
*/
#include <asm/blackfin.h>
#include <asm/cplb.h>
#define INITIAL_T 0x1
#define SWITCH_T 0x2
#define I_CPLB 0x4
#define D_CPLB 0x8
#define IN_KERNEL 1
enum
{ZERO_P, L1I_MEM, L1D_MEM, SDRAM_KERN , SDRAM_RAM_MTD, SDRAM_DMAZ, RES_MEM, ASYNC_MEM, L2_MEM};
struct cplb_desc {
u32 start; /* start address */
u32 end; /* end address */
u32 psize; /* prefered size if any otherwise 1MB or 4MB*/
u16 attr;/* attributes */
u16 i_conf;/* I-CPLB DATA */
u16 d_conf;/* D-CPLB DATA */
u16 valid;/* valid */
const s8 name[30];/* name */
};
struct cplb_tab {
u_long *tab;
u16 pos;
u16 size;
};
extern u_long icplb_table[MAX_CPLBS+1];
extern u_long dcplb_table[MAX_CPLBS+1];
/* Till here we are discussing about the static memory management model.
* However, the operating envoronments commonly define more CPLB
* descriptors to cover the entire addressable memory than will fit into
* the available on-chip 16 CPLB MMRs. When this happens, the below table
* will be used which will hold all the potentially required CPLB descriptors
*
* This is how Page descriptor Table is implemented in uClinux/Blackfin.
*/
#ifdef CONFIG_CPLB_SWITCH_TAB_L1
extern u_long ipdt_table[MAX_SWITCH_I_CPLBS+1]__attribute__((l1_data));
extern u_long dpdt_table[MAX_SWITCH_D_CPLBS+1]__attribute__((l1_data));
#ifdef CONFIG_CPLB_INFO
extern u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS]__attribute__((l1_data));
extern u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS]__attribute__((l1_data));
#endif /* CONFIG_CPLB_INFO */
#else
extern u_long ipdt_table[MAX_SWITCH_I_CPLBS+1];
extern u_long dpdt_table[MAX_SWITCH_D_CPLBS+1];
#ifdef CONFIG_CPLB_INFO
extern u_long ipdt_swapcount_table[MAX_SWITCH_I_CPLBS];
extern u_long dpdt_swapcount_table[MAX_SWITCH_D_CPLBS];
#endif /* CONFIG_CPLB_INFO */
#endif /*CONFIG_CPLB_SWITCH_TAB_L1*/
extern unsigned long reserved_mem_dcache_on;
extern unsigned long reserved_mem_icache_on;
extern void generate_cpl_tables(void);
|
