80 lines · c
1/*2 * Copyright (C) 2010 Francisco Jerez.3 * All Rights Reserved.4 *5 * Permission is hereby granted, free of charge, to any person obtaining6 * a copy of this software and associated documentation files (the7 * "Software"), to deal in the Software without restriction, including8 * without limitation the rights to use, copy, modify, merge, publish,9 * distribute, sublicense, and/or sell copies of the Software, and to10 * permit persons to whom the Software is furnished to do so, subject to11 * the following conditions:12 *13 * The above copyright notice and this permission notice (including the14 * next paragraph) shall be included in all copies or substantial15 * portions of the Software.16 *17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.20 * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE21 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION22 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION23 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.24 *25 */26#include "nv04.h"27#include "fbmem.h"28 29#include <subdev/bios.h>30#include <subdev/bios/init.h>31 32static void33nv20_devinit_meminit(struct nvkm_devinit *init)34{35 struct nvkm_subdev *subdev = &init->subdev;36 struct nvkm_device *device = subdev->device;37 uint32_t mask = (device->chipset >= 0x25 ? 0x300 : 0x900);38 uint32_t amount, off;39 struct io_mapping *fb;40 41 /* Map the framebuffer aperture */42 fb = fbmem_init(device);43 if (!fb) {44 nvkm_error(subdev, "failed to map fb\n");45 return;46 }47 48 nvkm_wr32(device, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);49 50 /* Allow full addressing */51 nvkm_mask(device, NV04_PFB_CFG0, 0, mask);52 53 amount = nvkm_rd32(device, 0x10020c);54 for (off = amount; off > 0x2000000; off -= 0x2000000)55 fbmem_poke(fb, off - 4, off);56 57 amount = nvkm_rd32(device, 0x10020c);58 if (amount != fbmem_peek(fb, amount - 4))59 /* IC missing - disable the upper half memory space. */60 nvkm_mask(device, NV04_PFB_CFG0, mask, 0);61 62 fbmem_fini(fb);63}64 65static const struct nvkm_devinit_func66nv20_devinit = {67 .dtor = nv04_devinit_dtor,68 .preinit = nv04_devinit_preinit,69 .post = nv04_devinit_post,70 .meminit = nv20_devinit_meminit,71 .pll_set = nv04_devinit_pll_set,72};73 74int75nv20_devinit_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,76 struct nvkm_devinit **pinit)77{78 return nv04_devinit_new_(&nv20_devinit, device, type, inst, pinit);79}80