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 }
62