diff options
Diffstat (limited to 'arch/blackfin/include/asm/cplbinit.h')
-rw-r--r-- | arch/blackfin/include/asm/cplbinit.h | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/blackfin/include/asm/cplbinit.h b/arch/blackfin/include/asm/cplbinit.h new file mode 100644 index 000000000000..0eb1c1b685a7 --- /dev/null +++ b/arch/blackfin/include/asm/cplbinit.h | |||
@@ -0,0 +1,95 @@ | |||
1 | /* | ||
2 | * File: include/asm-blackfin/cplbinit.h | ||
3 | * Based on: | ||
4 | * Author: | ||
5 | * | ||
6 | * Created: | ||
7 | * Description: | ||
8 | * | ||
9 | * Modified: | ||
10 | * Copyright 2004-2006 Analog Devices Inc. | ||
11 | * | ||
12 | * Bugs: Enter bugs at http://blackfin.uclinux.org/ | ||
13 | * | ||
14 | * This program is free software; you can redistribute it and/or modify | ||
15 | * it under the terms of the GNU General Public License as published by | ||
16 | * the Free Software Foundation; either version 2 of the License, or | ||
17 | * (at your option) any later version. | ||
18 | * | ||
19 | * This program is distributed in the hope that it will be useful, | ||
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | ||
22 | * GNU General Public License for more details. | ||
23 | * | ||
24 | * You should have received a copy of the GNU General Public License | ||
25 | * along with this program; if not, see the file COPYING, or write | ||
26 | * to the Free Software Foundation, Inc., | ||
27 | * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | ||
28 | */ | ||
29 | |||
30 | #ifndef __ASM_CPLBINIT_H__ | ||
31 | #define __ASM_CPLBINIT_H__ | ||
32 | |||
33 | #include <asm/blackfin.h> | ||
34 | #include <asm/cplb.h> | ||
35 | |||
36 | #ifdef CONFIG_MPU | ||
37 | |||
38 | #include <asm/cplb-mpu.h> | ||
39 | |||
40 | #else | ||
41 | |||
42 | #define INITIAL_T 0x1 | ||
43 | #define SWITCH_T 0x2 | ||
44 | #define I_CPLB 0x4 | ||
45 | #define D_CPLB 0x8 | ||
46 | |||
47 | #define IN_KERNEL 1 | ||
48 | |||
49 | enum | ||
50 | {ZERO_P, L1I_MEM, L1D_MEM, SDRAM_KERN , SDRAM_RAM_MTD, SDRAM_DMAZ, RES_MEM, ASYNC_MEM, L2_MEM}; | ||
51 | |||
52 | struct cplb_desc { | ||
53 | u32 start; /* start address */ | ||
54 | u32 end; /* end address */ | ||
55 | u32 psize; /* prefered size if any otherwise 1MB or 4MB*/ | ||
56 | u16 attr;/* attributes */ | ||
57 | u16 i_conf;/* I-CPLB DATA */ | ||
58 | u16 d_conf;/* D-CPLB DATA */ | ||
59 | u16 valid;/* valid */ | ||
60 | const s8 name[30];/* name */ | ||
61 | }; | ||
62 | |||
63 | struct cplb_tab { | ||
64 | u_long *tab; | ||
65 | u16 pos; | ||
66 | u16 size; | ||
67 | }; | ||
68 | |||
69 | extern u_long icplb_table[]; | ||
70 | extern u_long dcplb_table[]; | ||
71 | |||
72 | /* Till here we are discussing about the static memory management model. | ||
73 | * However, the operating envoronments commonly define more CPLB | ||
74 | * descriptors to cover the entire addressable memory than will fit into | ||
75 | * the available on-chip 16 CPLB MMRs. When this happens, the below table | ||
76 | * will be used which will hold all the potentially required CPLB descriptors | ||
77 | * | ||
78 | * This is how Page descriptor Table is implemented in uClinux/Blackfin. | ||
79 | */ | ||
80 | |||
81 | extern u_long ipdt_table[]; | ||
82 | extern u_long dpdt_table[]; | ||
83 | #ifdef CONFIG_CPLB_INFO | ||
84 | extern u_long ipdt_swapcount_table[]; | ||
85 | extern u_long dpdt_swapcount_table[]; | ||
86 | #endif | ||
87 | |||
88 | #endif /* CONFIG_MPU */ | ||
89 | |||
90 | extern unsigned long reserved_mem_dcache_on; | ||
91 | extern unsigned long reserved_mem_icache_on; | ||
92 | |||
93 | extern void generate_cpl_tables(void); | ||
94 | |||
95 | #endif | ||