114 lines
3.0 KiB
C
114 lines
3.0 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2010 Francisco Jerez.
|
||
|
|
* All Rights Reserved.
|
||
|
|
*
|
||
|
|
* 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 (including the
|
||
|
|
* next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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.
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
#include "nv04.h"
|
||
|
|
#include "fbmem.h"
|
||
|
|
|
||
|
|
#include <subdev/bios.h>
|
||
|
|
#include <subdev/bios/init.h>
|
||
|
|
|
||
|
|
static void
|
||
|
|
nv10_devinit_meminit(struct nvkm_devinit *init)
|
||
|
|
{
|
||
|
|
struct nvkm_subdev *subdev = &init->subdev;
|
||
|
|
struct nvkm_device *device = subdev->device;
|
||
|
|
static const int mem_width[] = { 0x10, 0x00, 0x20 };
|
||
|
|
int mem_width_count;
|
||
|
|
uint32_t patt = 0xdeadbeef;
|
||
|
|
struct io_mapping *fb;
|
||
|
|
int i, j, k;
|
||
|
|
|
||
|
|
if (device->card_type >= NV_11 && device->chipset >= 0x17)
|
||
|
|
mem_width_count = 3;
|
||
|
|
else
|
||
|
|
mem_width_count = 2;
|
||
|
|
|
||
|
|
/* Map the framebuffer aperture */
|
||
|
|
fb = fbmem_init(device);
|
||
|
|
if (!fb) {
|
||
|
|
nvkm_error(subdev, "failed to map fb\n");
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
|
||
|
|
nvkm_wr32(device, NV10_PFB_REFCTRL, NV10_PFB_REFCTRL_VALID_1);
|
||
|
|
|
||
|
|
/* Probe memory bus width */
|
||
|
|
for (i = 0; i < mem_width_count; i++) {
|
||
|
|
nvkm_mask(device, NV04_PFB_CFG0, 0x30, mem_width[i]);
|
||
|
|
|
||
|
|
for (j = 0; j < 4; j++) {
|
||
|
|
for (k = 0; k < 4; k++)
|
||
|
|
fbmem_poke(fb, 0x1c, 0);
|
||
|
|
|
||
|
|
fbmem_poke(fb, 0x1c, patt);
|
||
|
|
fbmem_poke(fb, 0x3c, 0);
|
||
|
|
|
||
|
|
if (fbmem_peek(fb, 0x1c) == patt)
|
||
|
|
goto mem_width_found;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
mem_width_found:
|
||
|
|
patt <<= 1;
|
||
|
|
|
||
|
|
/* Probe amount of installed memory */
|
||
|
|
for (i = 0; i < 4; i++) {
|
||
|
|
int off = nvkm_rd32(device, 0x10020c) - 0x100000;
|
||
|
|
|
||
|
|
fbmem_poke(fb, off, patt);
|
||
|
|
fbmem_poke(fb, 0, 0);
|
||
|
|
|
||
|
|
fbmem_peek(fb, 0);
|
||
|
|
fbmem_peek(fb, 0);
|
||
|
|
fbmem_peek(fb, 0);
|
||
|
|
fbmem_peek(fb, 0);
|
||
|
|
|
||
|
|
if (fbmem_peek(fb, off) == patt)
|
||
|
|
goto amount_found;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* IC missing - disable the upper half memory space. */
|
||
|
|
nvkm_mask(device, NV04_PFB_CFG0, 0x1000, 0);
|
||
|
|
|
||
|
|
amount_found:
|
||
|
|
fbmem_fini(fb);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct nvkm_devinit_func
|
||
|
|
nv10_devinit = {
|
||
|
|
.dtor = nv04_devinit_dtor,
|
||
|
|
.preinit = nv04_devinit_preinit,
|
||
|
|
.post = nv04_devinit_post,
|
||
|
|
.meminit = nv10_devinit_meminit,
|
||
|
|
.pll_set = nv04_devinit_pll_set,
|
||
|
|
};
|
||
|
|
|
||
|
|
int
|
||
|
|
nv10_devinit_new(struct nvkm_device *device, int index,
|
||
|
|
struct nvkm_devinit **pinit)
|
||
|
|
{
|
||
|
|
return nv04_devinit_new_(&nv10_devinit, device, index, pinit);
|
||
|
|
}
|