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1/*2 * Copyright 2018 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * 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#include <subdev/gsp.h>28 29static int30tu102_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)31{32 struct nvkm_subdev *subdev = &init->subdev;33 struct nvkm_device *device = subdev->device;34 struct nvbios_pll info;35 int head = type - PLL_VPLL0;36 int N, fN, M, P;37 int ret;38 39 ret = nvbios_pll_parse(device->bios, type, &info);40 if (ret)41 return ret;42 43 ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);44 if (ret < 0)45 return ret;46 47 switch (info.type) {48 case PLL_VPLL0:49 case PLL_VPLL1:50 case PLL_VPLL2:51 case PLL_VPLL3:52 nvkm_wr32(device, 0x00ef10 + (head * 0x40), fN << 16);53 nvkm_wr32(device, 0x00ef04 + (head * 0x40), (P << 16) |54 (N << 8) |55 (M << 0));56 /*XXX*/57 nvkm_wr32(device, 0x00ef0c + (head * 0x40), 0x00000900);58 nvkm_wr32(device, 0x00ef00 + (head * 0x40), 0x02000014);59 break;60 default:61 nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);62 ret = -EINVAL;63 break;64 }65 66 return ret;67}68 69static int70tu102_devinit_wait(struct nvkm_device *device)71{72 unsigned timeout = 50 + 2000;73 74 do {75 if (nvkm_rd32(device, 0x118128) & 0x00000001) {76 if ((nvkm_rd32(device, 0x118234) & 0x000000ff) == 0xff)77 return 0;78 }79 80 usleep_range(1000, 2000);81 } while (timeout--);82 83 return -ETIMEDOUT;84}85 86int87tu102_devinit_post(struct nvkm_devinit *init, bool post)88{89 return tu102_devinit_wait(init->subdev.device);90}91 92static const struct nvkm_devinit_func93tu102_devinit = {94 .init = nv50_devinit_init,95 .post = tu102_devinit_post,96 .pll_set = tu102_devinit_pll_set,97 .disable = gm107_devinit_disable,98};99 100int101tu102_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,102 struct nvkm_devinit **pinit)103{104 if (nvkm_gsp_rm(device->gsp))105 return r535_devinit_new(&tu102_devinit, device, type, inst, pinit);106 107 return nv50_devinit_new_(&tu102_devinit, device, type, inst, pinit);108}109