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
tu102_devinit_pll_set(struct nvkm_devinit * init,u32 type,u32 freq)29 tu102_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 /*XXX*/
56 nvkm_wr32(device, 0x00ef0c + (head * 0x40), 0x00000900);
57 nvkm_wr32(device, 0x00ef00 + (head * 0x40), 0x02000014);
58 break;
59 default:
60 nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
61 ret = -EINVAL;
62 break;
63 }
64
65 return ret;
66 }
67
68 static int
tu102_devinit_wait(struct nvkm_device * device)69 tu102_devinit_wait(struct nvkm_device *device)
70 {
71 unsigned timeout = 50 + 2000;
72
73 do {
74 if (nvkm_rd32(device, 0x118128) & 0x00000001) {
75 if ((nvkm_rd32(device, 0x118234) & 0x000000ff) == 0xff)
76 return 0;
77 }
78
79 usleep_range(1000, 2000);
80 } while (timeout--);
81
82 return -ETIMEDOUT;
83 }
84
85 int
tu102_devinit_post(struct nvkm_devinit * base,bool post)86 tu102_devinit_post(struct nvkm_devinit *base, bool post)
87 {
88 struct nv50_devinit *init = nv50_devinit(base);
89 int ret;
90
91 ret = tu102_devinit_wait(init->base.subdev.device);
92 if (ret)
93 return ret;
94
95 gm200_devinit_preos(init, post);
96 return 0;
97 }
98
99 static const struct nvkm_devinit_func
100 tu102_devinit = {
101 .init = nv50_devinit_init,
102 .post = tu102_devinit_post,
103 .pll_set = tu102_devinit_pll_set,
104 .disable = gm107_devinit_disable,
105 };
106
107 int
tu102_devinit_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_devinit ** pinit)108 tu102_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
109 struct nvkm_devinit **pinit)
110 {
111 return nv50_devinit_new_(&tu102_devinit, device, type, inst, pinit);
112 }
113
