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      1 /*	$NetBSD: nouveau_nvkm_subdev_devinit_tu102.c,v 1.2 2021/12/18 23:45:39 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2018 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 #include <sys/cdefs.h>
     25 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_devinit_tu102.c,v 1.2 2021/12/18 23:45:39 riastradh Exp $");
     26 
     27 #include "nv50.h"
     28 
     29 #include <subdev/bios.h>
     30 #include <subdev/bios/pll.h>
     31 #include <subdev/clk/pll.h>
     32 
     33 static int
     34 tu102_devinit_pll_set(struct nvkm_devinit *init, u32 type, u32 freq)
     35 {
     36 	struct nvkm_subdev *subdev = &init->subdev;
     37 	struct nvkm_device *device = subdev->device;
     38 	struct nvbios_pll info;
     39 	int head = type - PLL_VPLL0;
     40 	int N, fN, M, P;
     41 	int ret;
     42 
     43 	ret = nvbios_pll_parse(device->bios, type, &info);
     44 	if (ret)
     45 		return ret;
     46 
     47 	ret = gt215_pll_calc(subdev, &info, freq, &N, &fN, &M, &P);
     48 	if (ret < 0)
     49 		return ret;
     50 
     51 	switch (info.type) {
     52 	case PLL_VPLL0:
     53 	case PLL_VPLL1:
     54 	case PLL_VPLL2:
     55 	case PLL_VPLL3:
     56 		nvkm_wr32(device, 0x00ef10 + (head * 0x40), fN << 16);
     57 		nvkm_wr32(device, 0x00ef04 + (head * 0x40), (P << 16) |
     58 							    (N <<  8) |
     59 							    (M <<  0));
     60 		/*XXX*/
     61 		nvkm_wr32(device, 0x00ef0c + (head * 0x40), 0x00000900);
     62 		nvkm_wr32(device, 0x00ef00 + (head * 0x40), 0x02000014);
     63 		break;
     64 	default:
     65 		nvkm_warn(subdev, "%08x/%dKhz unimplemented\n", type, freq);
     66 		ret = -EINVAL;
     67 		break;
     68 	}
     69 
     70 	return ret;
     71 }
     72 
     73 static int
     74 tu102_devinit_post(struct nvkm_devinit *base, bool post)
     75 {
     76 	struct nv50_devinit *init = nv50_devinit(base);
     77 	gm200_devinit_preos(init, post);
     78 	return 0;
     79 }
     80 
     81 static const struct nvkm_devinit_func
     82 tu102_devinit = {
     83 	.init = nv50_devinit_init,
     84 	.post = tu102_devinit_post,
     85 	.pll_set = tu102_devinit_pll_set,
     86 	.disable = gm107_devinit_disable,
     87 };
     88 
     89 int
     90 tu102_devinit_new(struct nvkm_device *device, int index,
     91 		struct nvkm_devinit **pinit)
     92 {
     93 	return nv50_devinit_new_(&tu102_devinit, device, index, pinit);
     94 }
     95