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 static void
30 g84_devinit_disable(struct nvkm_devinit *init)
31 {
32 	struct nvkm_device *device = init->subdev.device;
33 	u32 r001540 = nvkm_rd32(device, 0x001540);
34 	u32 r00154c = nvkm_rd32(device, 0x00154c);
35 
36 	if (!(r001540 & 0x40000000)) {
37 		nvkm_subdev_disable(device, NVKM_ENGINE_MPEG, 0);
38 		nvkm_subdev_disable(device, NVKM_ENGINE_VP, 0);
39 		nvkm_subdev_disable(device, NVKM_ENGINE_BSP, 0);
40 		nvkm_subdev_disable(device, NVKM_ENGINE_CIPHER, 0);
41 	}
42 
43 	if (!(r00154c & 0x00000004))
44 		nvkm_subdev_disable(device, NVKM_ENGINE_DISP, 0);
45 	if (!(r00154c & 0x00000020))
46 		nvkm_subdev_disable(device, NVKM_ENGINE_BSP, 0);
47 	if (!(r00154c & 0x00000040))
48 		nvkm_subdev_disable(device, NVKM_ENGINE_CIPHER, 0);
49 }
50 
51 static const struct nvkm_devinit_func
52 g84_devinit = {
53 	.preinit = nv50_devinit_preinit,
54 	.init = nv50_devinit_init,
55 	.post = nv04_devinit_post,
56 	.pll_set = nv50_devinit_pll_set,
57 	.disable = g84_devinit_disable,
58 };
59 
60 int
61 g84_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
62 		struct nvkm_devinit **pinit)
63 {
64 	return nv50_devinit_new_(&g84_devinit, device, type, inst, pinit);
65 }
66