Merge tag 'pull-testing-gdbstub-plugins-gitdm-061022-3' of https://github.com/stsquad...
[qemu.git] / hw / misc / omap_tap.c
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 "qemu/osdep.h"
22 #include "hw/hw.h"
23 #include "hw/arm/omap.h"
24
25 /* TEST-Chip-level TAP */
26 static uint64_t omap_tap_read(void *opaque, hwaddr addr,
27 unsigned size)
28 {
29 struct omap_mpu_state_s *s = (struct omap_mpu_state_s *) opaque;
30
31 if (size != 4) {
32 return omap_badwidth_read32(opaque, addr);
33 }
34
35 switch (addr) {
36 case 0x204: /* IDCODE_reg */
37 switch (s->mpu_model) {
38 case omap2420:
39 case omap2422:
40 case omap2423:
41 return 0x5b5d902f; /* ES 2.2 */
42 case omap2430:
43 return 0x5b68a02f; /* ES 2.2 */
44 case omap3430:
45 return 0x1b7ae02f; /* ES 2 */
46 default:
47 hw_error("%s: Bad mpu model\n", __func__);
48 }
49
50 case 0x208: /* PRODUCTION_ID_reg for OMAP2 */
51 case 0x210: /* PRODUCTION_ID_reg for OMAP3 */
52 switch (s->mpu_model) {
53 case omap2420:
54 return 0x000254f0; /* POP ESHS2.1.1 in N91/93/95, ES2 in N800 */
55 case omap2422:
56 return 0x000400f0;
57 case omap2423:
58 return 0x000800f0;
59 case omap2430:
60 return 0x000000f0;
61 case omap3430:
62 return 0x000000f0;
63 default:
64 hw_error("%s: Bad mpu model\n", __func__);
65 }
66
67 case 0x20c:
68 switch (s->mpu_model) {
69 case omap2420:
70 case omap2422:
71 case omap2423:
72 return 0xcafeb5d9; /* ES 2.2 */
73 case omap2430:
74 return 0xcafeb68a; /* ES 2.2 */
75 case omap3430:
76 return 0xcafeb7ae; /* ES 2 */
77 default:
78 hw_error("%s: Bad mpu model\n", __func__);
79 }
80
81 case 0x218: /* DIE_ID_reg */
82 return ('Q' << 24) | ('E' << 16) | ('M' << 8) | ('U' << 0);
83 case 0x21c: /* DIE_ID_reg */
84 return 0x54 << 24;
85 case 0x220: /* DIE_ID_reg */
86 return ('Q' << 24) | ('E' << 16) | ('M' << 8) | ('U' << 0);
87 case 0x224: /* DIE_ID_reg */
88 return ('Q' << 24) | ('E' << 16) | ('M' << 8) | ('U' << 0);
89 }
90
91 OMAP_BAD_REG(addr);
92 return 0;
93 }
94
95 static void omap_tap_write(void *opaque, hwaddr addr,
96 uint64_t value, unsigned size)
97 {
98 if (size != 4) {
99 omap_badwidth_write32(opaque, addr, value);
100 return;
101 }
102
103 OMAP_BAD_REG(addr);
104 }
105
106 static const MemoryRegionOps omap_tap_ops = {
107 .read = omap_tap_read,
108 .write = omap_tap_write,
109 .endianness = DEVICE_NATIVE_ENDIAN,
110 };
111
112 void omap_tap_init(struct omap_target_agent_s *ta,
113 struct omap_mpu_state_s *mpu)
114 {
115 memory_region_init_io(&mpu->tap_iomem, NULL, &omap_tap_ops, mpu, "omap.tap",
116 omap_l4_region_size(ta, 0));
117 omap_l4_attach(ta, 0, &mpu->tap_iomem);
118 }