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 | } |
119 | |