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
28static int
29gv100_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
65static const struct nvkm_devinit_func
66gv100_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
74int
75gv100_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
76		  struct nvkm_devinit **pinit)
77{
78	return nv50_devinit_new_(&gv100_devinit, device, type, inst, pinit);
79}
80