2 * Copyright 2013 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
26 #include <subdev/bios.h>
27 #include <subdev/bios/dcb.h>
28 #include <subdev/bios/disp.h>
29 #include <subdev/bios/init.h>
30 #include <subdev/bios/pll.h>
31 #include <subdev/clk/pll.h>
32 #include <subdev/vga.h>
35 nv50_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
37 struct nvkm_subdev *subdev = &init->subdev;
38 struct nvkm_device *device = subdev->device;
39 struct nvkm_bios *bios = device->bios;
40 struct nvbios_pll info;
41 int N1, M1, N2, M2, P;
44 ret = nvbios_pll_parse(bios, type, &info);
46 nvkm_error(subdev, "failed to retrieve pll data, %d\n", ret);
50 ret = nv04_pll_calc(subdev, &info, freq, &N1, &M1, &N2, &M2, &P);
52 nvkm_error(subdev, "failed pll calculation\n");
59 nvkm_wr32(device, info.reg + 0, 0x10000611);
60 nvkm_mask(device, info.reg + 4, 0x00ff00ff, (M1 << 16) | N1);
61 nvkm_mask(device, info.reg + 8, 0x7fff00ff, (P << 28) |
65 nvkm_mask(device, info.reg + 0, 0x01ff0000,
69 nvkm_wr32(device, info.reg + 4, (N1 << 8) | M1);
72 nvkm_mask(device, info.reg + 0, 0x00070000, (P << 16));
73 nvkm_wr32(device, info.reg + 4, (N1 << 8) | M1);
81 nv50_devinit_disable(struct nvkm_devinit *init)
83 struct nvkm_device *device = init->subdev.device;
84 u32 r001540 = nvkm_rd32(device, 0x001540);
87 if (!(r001540 & 0x40000000))
88 disable |= (1ULL << NVKM_ENGINE_MPEG);
94 nv50_devinit_preinit(struct nvkm_devinit *base)
96 struct nvkm_subdev *subdev = &base->subdev;
97 struct nvkm_device *device = subdev->device;
99 /* our heuristics can't detect whether the board has had its
100 * devinit scripts executed or not if the display engine is
101 * missing, assume it's a secondary gpu which requires post
104 u64 disable = nvkm_devinit_disable(base);
105 if (disable & (1ULL << NVKM_ENGINE_DISP))
109 /* magic to detect whether or not x86 vbios code has executed
110 * the devinit scripts to initialise the board
113 if (!nvkm_rdvgac(device, 0, 0x00) &&
114 !nvkm_rdvgac(device, 0, 0x1a)) {
115 nvkm_debug(subdev, "adaptor not initialised\n");
122 nv50_devinit_init(struct nvkm_devinit *base)
124 struct nv50_devinit *init = nv50_devinit(base);
125 struct nvkm_subdev *subdev = &init->base.subdev;
126 struct nvkm_device *device = subdev->device;
127 struct nvkm_bios *bios = device->bios;
128 struct nvbios_outp info;
129 struct dcb_output outp;
130 u8 ver = 0xff, hdr, cnt, len;
133 /* if we ran the init tables, we have to execute the first script
134 * pointer of each dcb entry's display encoder table in order
135 * to properly initialise each encoder.
137 while (init->base.post && dcb_outp_parse(bios, i, &ver, &hdr, &outp)) {
138 if (nvbios_outp_match(bios, outp.hasht, outp.hashm,
139 &ver, &hdr, &cnt, &len, &info)) {
140 struct nvbios_init exec = {
143 .offset = info.script[0],
156 nv50_devinit_new_(const struct nvkm_devinit_func *func,
157 struct nvkm_device *device, int index,
158 struct nvkm_devinit **pinit)
160 struct nv50_devinit *init;
162 if (!(init = kzalloc(sizeof(*init), GFP_KERNEL)))
164 *pinit = &init->base;
166 nvkm_devinit_ctor(func, device, index, &init->base);
170 static const struct nvkm_devinit_func
172 .preinit = nv50_devinit_preinit,
173 .init = nv50_devinit_init,
174 .post = nv04_devinit_post,
175 .pll_set = nv50_devinit_pll_set,
176 .disable = nv50_devinit_disable,
180 nv50_devinit_new(struct nvkm_device *device, int index,
181 struct nvkm_devinit **pinit)
183 return nv50_devinit_new_(&nv50_devinit, device, index, pinit);