78 lines
2.4 KiB
C
78 lines
2.4 KiB
C
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/*
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* Copyright 2021 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "nv50.h"
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#include <subdev/bios.h>
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#include <subdev/bios/pll.h>
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#include <subdev/clk/pll.h>
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static int
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ga100_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
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{
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struct nvkm_subdev *subdev = &init->subdev;
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struct nvkm_device *device = subdev->device;
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struct nvbios_pll info;
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int head = type - PLL_VPLL0;
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int N, fN, M, P;
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int ret;
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ret = nvbios_pll_parse(device->bios, type, &info);
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if (ret)
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return ret;
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ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);
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if (ret < 0)
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return ret;
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switch (info.type) {
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case PLL_VPLL0:
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case PLL_VPLL1:
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case PLL_VPLL2:
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case PLL_VPLL3:
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nvkm_wr32(device, 0x00ef00 + (head * 0x40), 0x02080004);
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nvkm_wr32(device, 0x00ef18 + (head * 0x40), (N << 16) | fN);
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nvkm_wr32(device, 0x00ef04 + (head * 0x40), (P << 16) | M);
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nvkm_wr32(device, 0x00e9c0 + (head * 0x04), 0x00000001);
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break;
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default:
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nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
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ret = -EINVAL;
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break;
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}
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return ret;
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}
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static const struct nvkm_devinit_func
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ga100_devinit = {
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.init = nv50_devinit_init,
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.post = tu102_devinit_post,
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.pll_set = ga100_devinit_pll_set,
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};
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int
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ga100_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
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struct nvkm_devinit **pinit)
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{
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return nv50_devinit_new_(&ga100_devinit, device, type, inst, pinit);
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}
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