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286070dd MF |
1 | /* |
2 | * U-boot - cmd_cache_dump.c | |
3 | * | |
4 | * Copyright (c) 2007-2008 Analog Devices Inc. | |
5 | * | |
6 | * Licensed under the GPL-2 or later. | |
7 | */ | |
8 | ||
9 | #include <config.h> | |
10 | #include <common.h> | |
11 | #include <command.h> | |
24b852a7 | 12 | #include <console.h> |
286070dd MF |
13 | |
14 | #include <asm/blackfin.h> | |
15 | #include <asm/mach-common/bits/mpu.h> | |
16 | ||
17 | static int check_limit(const char *type, size_t start_limit, size_t end_limit, size_t start, size_t end) | |
18 | { | |
19 | if (start >= start_limit && start <= end_limit && \ | |
20 | end <= end_limit && end >= start_limit && \ | |
21 | start <= end) | |
22 | return 0; | |
23 | ||
24 | printf("%s limit violation: %zu <= (user:%zu) <= (user:%zu) <= %zu\n", | |
25 | type, start_limit, start, end, end_limit); | |
26 | return 1; | |
27 | } | |
28 | ||
54841ab5 | 29 | int do_icache_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
286070dd MF |
30 | { |
31 | int cache_status = icache_status(); | |
32 | ||
33 | if (cache_status) | |
34 | icache_disable(); | |
35 | ||
36 | uint32_t cmd_base, tag, cache_upper, cache_lower; | |
37 | ||
38 | size_t way, way_start = 0, way_end = 3; | |
39 | size_t sbnk, sbnk_start = 0, sbnk_end = 3; | |
40 | size_t set, set_start = 0, set_end = 31; | |
41 | size_t dw; | |
42 | ||
43 | if (argc > 1) { | |
44 | way_start = way_end = simple_strtoul(argv[1], NULL, 10); | |
45 | if (argc > 2) { | |
46 | sbnk_start = sbnk_end = simple_strtoul(argv[2], NULL, 10); | |
47 | if (argc > 3) | |
48 | set_start = set_end = simple_strtoul(argv[3], NULL, 10); | |
49 | } | |
50 | } | |
51 | ||
52 | if (check_limit("way", 0, 3, way_start, way_end) || \ | |
53 | check_limit("subbank", 0, 3, sbnk_start, sbnk_end) || \ | |
54 | check_limit("set", 0, 31, set_start, set_end)) | |
55 | return 1; | |
56 | ||
57 | puts("Way:Subbank:Set: [valid-tag lower upper] {invalid-tag lower upper}...\n"); | |
58 | ||
59 | for (way = way_start; way <= way_end; ++way) { | |
60 | for (sbnk = sbnk_start; sbnk <= sbnk_end; ++sbnk) { | |
61 | for (set = set_start; set <= set_end; ++set) { | |
62 | printf("%zu:%zu:%2zu: ", way, sbnk, set); | |
63 | for (dw = 0; dw < 4; ++dw) { | |
64 | if (ctrlc()) | |
65 | return 1; | |
66 | ||
67 | cmd_base = \ | |
68 | (way << 26) | \ | |
69 | (sbnk << 16) | \ | |
70 | (set << 5) | \ | |
71 | (dw << 3); | |
72 | ||
73 | /* first read the tag */ | |
74 | bfin_write_ITEST_COMMAND(cmd_base | 0x0); | |
75 | SSYNC(); | |
76 | tag = bfin_read_ITEST_DATA0(); | |
77 | printf("%c%08x ", (tag & 0x1 ? ' ' : '{'), tag); | |
78 | ||
79 | /* grab the data at this loc */ | |
80 | bfin_write_ITEST_COMMAND(cmd_base | 0x4); | |
81 | SSYNC(); | |
82 | cache_lower = bfin_read_ITEST_DATA0(); | |
83 | cache_upper = bfin_read_ITEST_DATA1(); | |
84 | printf("%08x %08x%c ", cache_lower, cache_upper, (tag & 0x1 ? ' ' : '}')); | |
85 | } | |
86 | puts("\n"); | |
87 | } | |
88 | } | |
89 | } | |
90 | ||
91 | if (cache_status) | |
92 | icache_enable(); | |
93 | ||
94 | return 0; | |
95 | } | |
96 | ||
97 | U_BOOT_CMD(icache_dump, 4, 0, do_icache_dump, | |
98 | "icache_dump - dump current instruction cache\n", | |
99 | "[way] [subbank] [set]"); | |
100 | ||
54841ab5 | 101 | int do_dcache_dump(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) |
286070dd MF |
102 | { |
103 | u32 way, bank, subbank, set; | |
104 | u32 status, addr; | |
105 | u32 dmem_ctl = bfin_read_DMEM_CONTROL(); | |
106 | ||
107 | for (bank = 0; bank < 2; ++bank) { | |
108 | if (!(dmem_ctl & (1 << (DMC1_P - bank)))) | |
109 | continue; | |
110 | ||
111 | for (way = 0; way < 2; ++way) | |
112 | for (subbank = 0; subbank < 4; ++subbank) { | |
113 | printf("%i:%i:%i:\t", bank, way, subbank); | |
114 | for (set = 0; set < 64; ++set) { | |
115 | ||
116 | if (ctrlc()) | |
117 | return 1; | |
118 | ||
119 | /* retrieve a cache tag */ | |
120 | bfin_write_DTEST_COMMAND( | |
121 | way << 26 | | |
122 | bank << 23 | | |
123 | subbank << 16 | | |
124 | set << 5 | |
125 | ); | |
126 | CSYNC(); | |
127 | status = bfin_read_DTEST_DATA0(); | |
128 | ||
129 | /* construct the address using the tag */ | |
130 | addr = (status & 0xFFFFC800) | (subbank << 12) | (set << 5); | |
131 | ||
132 | /* show it */ | |
133 | if (set && !(set % 4)) | |
134 | puts("\n\t"); | |
135 | printf("%c%08x%c%08x%c ", (status & 0x1 ? '[' : '{'), status, (status & 0x2 ? 'd' : ' '), addr, (status & 0x1 ? ']' : '}')); | |
136 | } | |
137 | puts("\n"); | |
138 | } | |
139 | } | |
140 | ||
141 | return 0; | |
142 | } | |
143 | ||
144 | U_BOOT_CMD(dcache_dump, 4, 0, do_dcache_dump, | |
145 | "dcache_dump - dump current data cache\n", | |
146 | "[bank] [way] [subbank] [set]"); |