subdev/devinit/g84.c

0001 /*
0002  * Copyright 2013 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  *
0022  * Authors: Ben Skeggs
0023  */
0024 #include "nv50.h"
0025
0026 #include <subdev/bios.h>
0027 #include <subdev/bios/init.h>
0028
0029 static u64
0030 g84_devinit_disable(struct nvkm_devinit *init)
0031 {
0032     struct nvkm_device *device = init->subdev.device;
0033     u32 r001540 = nvkm_rd32(device, 0x001540);
0034     u32 r00154c = nvkm_rd32(device, 0x00154c);
0035     u64 disable = 0ULL;
0036
0037     if (!(r001540 & 0x40000000)) {
0038         nvkm_subdev_disable(device, NVKM_ENGINE_MPEG, 0);
0039         nvkm_subdev_disable(device, NVKM_ENGINE_VP, 0);
0040         nvkm_subdev_disable(device, NVKM_ENGINE_BSP, 0);
0041         nvkm_subdev_disable(device, NVKM_ENGINE_CIPHER, 0);
0042     }
0043
0044     if (!(r00154c & 0x00000004))
0045         nvkm_subdev_disable(device, NVKM_ENGINE_DISP, 0);
0046     if (!(r00154c & 0x00000020))
0047         nvkm_subdev_disable(device, NVKM_ENGINE_BSP, 0);
0048     if (!(r00154c & 0x00000040))
0049         nvkm_subdev_disable(device, NVKM_ENGINE_CIPHER, 0);
0050
0051     return disable;
0052 }
0053
0054 static const struct nvkm_devinit_func
0055 g84_devinit = {
0056     .preinit = nv50_devinit_preinit,
0057     .init = nv50_devinit_init,
0058     .post = nv04_devinit_post,
0059     .pll_set = nv50_devinit_pll_set,
0060     .disable = g84_devinit_disable,
0061 };
0062
0063 int
0064 g84_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
0065         struct nvkm_devinit **pinit)
0066 {
0067     return nv50_devinit_new_(&g84_devinit, device, type, inst, pinit);
0068 }