1 | /* $NetBSD: nouveau_subdev_clock_nv04.c,v 1.1.1.1 2014/08/06 12:36:29 riastradh Exp $ */ |
2 | |
3 | /* |
4 | * Copyright 2012 Red Hat Inc. |
5 | * |
6 | * Permission is hereby granted, free of charge, to any person obtaining a |
7 | * copy of this software and associated documentation files (the "Software"), |
8 | * to deal in the Software without restriction, including without limitation |
9 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
10 | * and/or sell copies of the Software, and to permit persons to whom the |
11 | * Software is furnished to do so, subject to the following conditions: |
12 | * |
13 | * The above copyright notice and this permission notice shall be included in |
14 | * all copies or substantial portions of the Software. |
15 | * |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
19 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
20 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
21 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
22 | * OTHER DEALINGS IN THE SOFTWARE. |
23 | * |
24 | * Authors: Ben Skeggs |
25 | */ |
26 | |
27 | #include <sys/cdefs.h> |
28 | __KERNEL_RCSID(0, "$NetBSD: nouveau_subdev_clock_nv04.c,v 1.1.1.1 2014/08/06 12:36:29 riastradh Exp $" ); |
29 | |
30 | #include <subdev/bios.h> |
31 | #include <subdev/bios/pll.h> |
32 | #include <subdev/clock.h> |
33 | #include <subdev/devinit/nv04.h> |
34 | |
35 | #include "pll.h" |
36 | |
37 | struct nv04_clock_priv { |
38 | struct nouveau_clock base; |
39 | }; |
40 | |
41 | int |
42 | nv04_clock_pll_calc(struct nouveau_clock *clock, struct nvbios_pll *info, |
43 | int clk, struct nouveau_pll_vals *pv) |
44 | { |
45 | int N1, M1, N2, M2, P; |
46 | int ret = nv04_pll_calc(nv_subdev(clock), info, clk, &N1, &M1, &N2, &M2, &P); |
47 | if (ret) { |
48 | pv->refclk = info->refclk; |
49 | pv->N1 = N1; |
50 | pv->M1 = M1; |
51 | pv->N2 = N2; |
52 | pv->M2 = M2; |
53 | pv->log2P = P; |
54 | } |
55 | return ret; |
56 | } |
57 | |
58 | int |
59 | nv04_clock_pll_prog(struct nouveau_clock *clk, u32 reg1, |
60 | struct nouveau_pll_vals *pv) |
61 | { |
62 | struct nouveau_devinit *devinit = nouveau_devinit(clk); |
63 | int cv = nouveau_bios(clk)->version.chip; |
64 | |
65 | if (cv == 0x30 || cv == 0x31 || cv == 0x35 || cv == 0x36 || |
66 | cv >= 0x40) { |
67 | if (reg1 > 0x405c) |
68 | setPLL_double_highregs(devinit, reg1, pv); |
69 | else |
70 | setPLL_double_lowregs(devinit, reg1, pv); |
71 | } else |
72 | setPLL_single(devinit, reg1, pv); |
73 | |
74 | return 0; |
75 | } |
76 | |
77 | static struct nouveau_clocks |
78 | nv04_domain[] = { |
79 | { nv_clk_src_max } |
80 | }; |
81 | |
82 | static int |
83 | nv04_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
84 | struct nouveau_oclass *oclass, void *data, u32 size, |
85 | struct nouveau_object **pobject) |
86 | { |
87 | struct nv04_clock_priv *priv; |
88 | int ret; |
89 | |
90 | ret = nouveau_clock_create(parent, engine, oclass, nv04_domain, &priv); |
91 | *pobject = nv_object(priv); |
92 | if (ret) |
93 | return ret; |
94 | |
95 | priv->base.pll_calc = nv04_clock_pll_calc; |
96 | priv->base.pll_prog = nv04_clock_pll_prog; |
97 | return 0; |
98 | } |
99 | |
100 | struct nouveau_oclass |
101 | nv04_clock_oclass = { |
102 | .handle = NV_SUBDEV(CLOCK, 0x04), |
103 | .ofuncs = &(struct nouveau_ofuncs) { |
104 | .ctor = nv04_clock_ctor, |
105 | .dtor = _nouveau_clock_dtor, |
106 | .init = _nouveau_clock_init, |
107 | .fini = _nouveau_clock_fini, |
108 | }, |
109 | }; |
110 | |