1 /*
2 * Copyright 2013 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
24 #include "nv50.h"
25
26 #include <subdev/bios.h>
27 #include <subdev/bios/init.h>
28
29 u64
30 gm107_devinit_disable(struct nvkm_devinit *init)
31 {
32 struct nvkm_device *device = init->subdev.device;
33 u32 r021c00 = nvkm_rd32(device, 0x021c00);
34 u32 r021c04 = nvkm_rd32(device, 0x021c04);
35 u64 disable = 0ULL;
36
37 if (r021c00 & 0x00000001)
38 disable |= (1ULL << NVKM_ENGINE_CE0);
39 if (r021c00 & 0x00000004)
40 disable |= (1ULL << NVKM_ENGINE_CE2);
41 if (r021c04 & 0x00000001)
42 disable |= (1ULL << NVKM_ENGINE_DISP);
43
44 return disable;
45 }
46
47 static const struct nvkm_devinit_func
48 gm107_devinit = {
49 .preinit = gf100_devinit_preinit,
50 .init = nv50_devinit_init,
51 .post = nv04_devinit_post,
52 .pll_set = gf100_devinit_pll_set,
53 .disable = gm107_devinit_disable,
54 };
55
56 int
57 gm107_devinit_new(struct nvkm_device *device, int index,
58 struct nvkm_devinit **pinit)
59 {
60 return nv50_devinit_new_(&gm107_devinit, device, index, pinit);
61 }