1 /*
2 * Copyright 2018 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 #include "nv50.h"
23
24 #include <subdev/bios.h>
25 #include <subdev/bios/pll.h>
26 #include <subdev/clk/pll.h>
27
28 static int
29 gv100_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
30 {
31 struct nvkm_subdev *subdev = &init->subdev;
32 struct nvkm_device *device = subdev->device;
33 struct nvbios_pll info;
34 int head = type - PLL_VPLL0;
35 int N, fN, M, P;
36 int ret;
37
38 ret = nvbios_pll_parse(device->bios, type, &info);
39 if (ret)
40 return ret;
41
42 ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);
43 if (ret < 0)
44 return ret;
45
46 switch (info.type) {
47 case PLL_VPLL0:
48 case PLL_VPLL1:
49 case PLL_VPLL2:
50 case PLL_VPLL3:
51 nvkm_wr32(device, 0x00ef10 + (head * 0x40), fN << 16);
52 nvkm_wr32(device, 0x00ef04 + (head * 0x40), (P << 16) |
53 (N << 8) |
54 (M << 0));
55 break;
56 default:
57 nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
58 ret = -EINVAL;
59 break;
60 }
61
62 return ret;
63 }
64
65 static const struct nvkm_devinit_func
66 gv100_devinit = {
67 .preinit = gf100_devinit_preinit,
68 .init = nv50_devinit_init,
69 .post = gm200_devinit_post,
70 .pll_set = gv100_devinit_pll_set,
71 .disable = gm107_devinit_disable,
72 };
73
74 int
75 gv100_devinit_new(struct nvkm_device *device, int index,
76 struct nvkm_devinit **pinit)
77 {
78 return nv50_devinit_new_(&gv100_devinit, device, index, pinit);
79 }