| /* |
| * Copyright 2012 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: Ben Skeggs |
| */ |
| |
| #include <subdev/bios.h> |
| #include <subdev/bios/pll.h> |
| #include <subdev/clock.h> |
| #include <subdev/devinit/priv.h> |
| |
| #include "pll.h" |
| |
| struct nv04_clock_priv { |
| struct nouveau_clock base; |
| }; |
| |
| int |
| nv04_clock_pll_calc(struct nouveau_clock *clock, struct nvbios_pll *info, |
| int clk, struct nouveau_pll_vals *pv) |
| { |
| int N1, M1, N2, M2, P; |
| int ret = nv04_pll_calc(nv_subdev(clock), info, clk, &N1, &M1, &N2, &M2, &P); |
| if (ret) { |
| pv->refclk = info->refclk; |
| pv->N1 = N1; |
| pv->M1 = M1; |
| pv->N2 = N2; |
| pv->M2 = M2; |
| pv->log2P = P; |
| } |
| return ret; |
| } |
| |
| int |
| nv04_clock_pll_prog(struct nouveau_clock *clk, u32 reg1, |
| struct nouveau_pll_vals *pv) |
| { |
| struct nouveau_devinit *devinit = nouveau_devinit(clk); |
| int cv = nouveau_bios(clk)->version.chip; |
| |
| if (cv == 0x30 || cv == 0x31 || cv == 0x35 || cv == 0x36 || |
| cv >= 0x40) { |
| if (reg1 > 0x405c) |
| setPLL_double_highregs(devinit, reg1, pv); |
| else |
| setPLL_double_lowregs(devinit, reg1, pv); |
| } else |
| setPLL_single(devinit, reg1, pv); |
| |
| return 0; |
| } |
| |
| static int |
| nv04_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine, |
| struct nouveau_oclass *oclass, void *data, u32 size, |
| struct nouveau_object **pobject) |
| { |
| struct nv04_clock_priv *priv; |
| int ret; |
| |
| ret = nouveau_clock_create(parent, engine, oclass, &priv); |
| *pobject = nv_object(priv); |
| if (ret) |
| return ret; |
| |
| priv->base.pll_calc = nv04_clock_pll_calc; |
| priv->base.pll_prog = nv04_clock_pll_prog; |
| return 0; |
| } |
| |
| struct nouveau_oclass |
| nv04_clock_oclass = { |
| .handle = NV_SUBDEV(CLOCK, 0x04), |
| .ofuncs = &(struct nouveau_ofuncs) { |
| .ctor = nv04_clock_ctor, |
| .dtor = _nouveau_clock_dtor, |
| .init = _nouveau_clock_init, |
| .fini = _nouveau_clock_fini, |
| }, |
| }; |