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qemu / qemu / 22156ab498acf5f8104801148732ae8e83f336a0 / . / hw / omap_tap.c
blob: 1f18dddb225fff58732b11439bf20ac375ceb3f3 [file] [log] [blame]
cmchaocc9577c2010-05-31 23:54:21 +0800[diff] [blame]1/*
2 * TI OMAP TEST-Chip-level TAP emulation.
3 *
4 * Copyright (C) 2007-2008 Nokia Corporation
5 * Written by Andrzej Zaborowski <andrew@openedhand.com>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 or
10 * (at your option) any later version of the License.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21#include "hw.h"
22#include "omap.h"
23
24/* TEST-Chip-level TAP */
25static uint32_t omap_tap_read(void *opaque, target_phys_addr_t addr)
26{
27 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
28
29 switch (addr) {
30 case 0x204: /* IDCODE_reg */
31 switch (s->mpu_model) {
32 case omap2420:
33 case omap2422:
34 case omap2423:
35 return 0x5b5d902f; /* ES 2.2 */
36 case omap2430:
37 return 0x5b68a02f; /* ES 2.2 */
38 case omap3430:
39 return 0x1b7ae02f; /* ES 2 */
40 default:
41 hw_error("%s: Bad mpu model\n", __FUNCTION__);
42 }
43
44 case 0x208: /* PRODUCTION_ID_reg for OMAP2 */
45 case 0x210: /* PRODUCTION_ID_reg for OMAP3 */
46 switch (s->mpu_model) {
47 case omap2420:
48 return 0x000254f0; /* POP ESHS2.1.1 in N91/93/95, ES2 in N800 */
49 case omap2422:
50 return 0x000400f0;
51 case omap2423:
52 return 0x000800f0;
53 case omap2430:
54 return 0x000000f0;
55 case omap3430:
56 return 0x000000f0;
57 default:
58 hw_error("%s: Bad mpu model\n", __FUNCTION__);
59 }
60
61 case 0x20c:
62 switch (s->mpu_model) {
63 case omap2420:
64 case omap2422:
65 case omap2423:
66 return 0xcafeb5d9; /* ES 2.2 */
67 case omap2430:
68 return 0xcafeb68a; /* ES 2.2 */
69 case omap3430:
70 return 0xcafeb7ae; /* ES 2 */
71 default:
72 hw_error("%s: Bad mpu model\n", __FUNCTION__);
73 }
74
75 case 0x218: /* DIE_ID_reg */
76 return ('Q' << 24) | ('E' << 16) | ('M' << 8) | ('U' << 0);
77 case 0x21c: /* DIE_ID_reg */
78 return 0x54 << 24;
79 case 0x220: /* DIE_ID_reg */
80 return ('Q' << 24) | ('E' << 16) | ('M' << 8) | ('U' << 0);
81 case 0x224: /* DIE_ID_reg */
82 return ('Q' << 24) | ('E' << 16) | ('M' << 8) | ('U' << 0);
83 }
84
85 OMAP_BAD_REG(addr);
86 return 0;
87}
88
89static void omap_tap_write(void *opaque, target_phys_addr_t addr,
90 uint32_t value)
91{
92 OMAP_BAD_REG(addr);
93}
94
95static CPUReadMemoryFunc * const omap_tap_readfn[] = {
96 omap_badwidth_read32,
97 omap_badwidth_read32,
98 omap_tap_read,
99};
100
101static CPUWriteMemoryFunc * const omap_tap_writefn[] = {
102 omap_badwidth_write32,
103 omap_badwidth_write32,
104 omap_tap_write,
105};
106
107void omap_tap_init(struct omap_target_agent_s *ta,
108 struct omap_mpu_state_s *mpu)
109{
110 omap_l4_attach(ta, 0, l4_register_io_memory(
111 omap_tap_readfn, omap_tap_writefn, mpu));
112}