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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2012 Google Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <types.h>
#include <string.h>
#include <device/device.h>
#include <device/device.h>
#include <device/pci_def.h>
#include <device/pci_ops.h>
#include <console/console.h>
#include <delay.h>
#include <pc80/mc146818rtc.h>
#include <arch/acpi.h>
#include <arch/io.h>
#include <arch/interrupt.h>
#include <arch/coreboot_tables.h>
#include "hda_verb.h"
#include "onboard.h"
#include "ec.h"
#include <southbridge/intel/bd82x6x/pch.h>
#include <smbios.h>
#include <device/pci.h>
#include <ec/google/chromeec/ec.h>
#include <cbfs_core.h>
#include <cpu/x86/tsc.h>
#include <cpu/x86/cache.h>
#include <cpu/x86/mtrr.h>
#include <cpu/amd/mtrr.h>
#include <cpu/x86/msr.h>
#include "i915io.h"
enum {
vmsg = 1, vio = 2, vspin = 4,
};
static int verbose = 0;
static unsigned int *mmio;
static unsigned int graphics;
static unsigned short addrport;
static unsigned short dataport;
static unsigned int physbase;
extern int oprom_is_loaded;
#define READ32(addr) io_i915_READ32(addr)
#define WRITE32(val, addr) io_i915_WRITE32(val, addr)
static unsigned long io_i915_READ32(unsigned long addr)
{
unsigned long val;
outl(addr, addrport);
val = inl(dataport);
return val;
}
static void io_i915_WRITE32(unsigned long val, unsigned long addr)
{
outl(addr, addrport);
outl(val, dataport);
}
/*
2560
4 words per
4 *p
10240
4k bytes per page
4096/p
2.50
1700 lines
1700 * p
4250.00
PTEs
*/
static void
setgtt(int start, int end, unsigned long base, int inc)
{
int i;
for(i = start; i < end; i++){
u32 word = base + i*inc;
WRITE32(word|1,(i*4)|1);
}
}
static char *regname(unsigned long addr)
{
static char name[16];
sprintf(name, "0x%lx", addr);
return name;
}
static unsigned long tickspermicrosecond = 1795;
static unsigned long long globalstart;
static unsigned long
microseconds(unsigned long long start, unsigned long long end)
{
unsigned long ret;
ret = ((end - start)/tickspermicrosecond);
return ret;
}
static unsigned long globalmicroseconds(void)
{
return microseconds(globalstart, rdtscll());
}
extern struct iodef iodefs[];
static int i915_init_done = 0;
int vbe_mode_info_valid(void);
int vbe_mode_info_valid(void)
{
return i915_init_done;
}
void fill_lb_framebuffer(struct lb_framebuffer *framebuffer);
void fill_lb_framebuffer(struct lb_framebuffer *framebuffer)
{
printk(BIOS_SPEW, "fill_lb_framebuffer: graphics is %p\n", (void *)graphics);
framebuffer->physical_address = graphics;
framebuffer->x_resolution = 2560;
framebuffer->y_resolution = 1700;
framebuffer->bytes_per_line = 10240;
framebuffer->bits_per_pixel = 32;
framebuffer->red_mask_pos = 16;
framebuffer->red_mask_size = 8;
framebuffer->green_mask_pos = 8;
framebuffer->green_mask_size = 8;
framebuffer->blue_mask_pos = 0;
framebuffer->blue_mask_size = 8;
framebuffer->reserved_mask_pos = 0;
framebuffer->reserved_mask_size = 0;
}
int i915lightup(unsigned int physbase, unsigned int iobase, unsigned int mmio,
unsigned int gfx);
int i915lightup(unsigned int pphysbase,
unsigned int piobase,
unsigned int pmmio,
unsigned int pgfx)
{
int i, prev = 0;
struct iodef *id, *lastidread = 0;
unsigned long u, t;
static unsigned long times[4096];
mmio = (void *)pmmio;
addrport = piobase;
dataport = addrport + 4;
physbase = pphysbase;
graphics = pgfx;
printk(BIOS_SPEW,
"i915lightup: graphics %p mmio %p"
"addrport %04x physbase %08x\n",
(void *)graphics, mmio, addrport, physbase);
globalstart = rdtscll();
/* state machine! */
for(i = 0, id = iodefs; id->op; i++, id++){
switch(id->op){
case M:
if (verbose & vmsg) printk(BIOS_SPEW, "%ld: %s\n",
globalmicroseconds(), id->msg);
break;
case R:
u = READ32(id->addr);
if (verbose & vio)printk(BIOS_SPEW, "%s: Got %08lx, expect %08lx\n",
regname(id->addr), u, id->data);
/* we're looking for something. */
if (lastidread->addr == id->addr){
/* they're going to be polling.
* just do it 1000 times
*/
for(t = 0; t < 1000 && id->data != u; t++){
u = READ32(id->addr);
}
if (verbose & vspin) printk(BIOS_SPEW,
"%s: # loops %ld got %08lx want %08lx\n",
regname(id->addr),
t, u, id->data);
}
lastidread = id;
break;
case W:
if (verbose & vio)printk(BIOS_SPEW, "%s: outl %08lx\n", regname(id->addr),
id->data);
WRITE32(id->data, id->addr);
if (id->addr == PCH_PP_CONTROL){
switch(id->data & 0xf){
case 8: break;
case 7: break;
default: udelay(100000);
}
}
break;
case V:
if (id->count < 8){
prev = verbose;
verbose = id->count;
} else {
verbose = prev;
}
break;
case I:
break;
default:
printk(BIOS_SPEW, "BAD TABLE, opcode %d @ %d\n", id->op, i);
return -1;
}
if (id->udelay)
udelay(id->udelay);
times[i] = globalmicroseconds();
}
/* optional, we don't even want to take timestamp overhead
* if we can avoid it. */
if (0)
for(i = 0, id = iodefs; id->op; i++, id++){
switch(id->op){
case R:
printk(BIOS_SPEW, "%ld: R %08lx\n", times[i], id->addr);
break;
case W:
printk(BIOS_SPEW, "%ld: W %08lx %08lx\n", times[i],
id->addr, id->data);
break;
}
}
setgtt(0, 4520, physbase, 4096);
printk(BIOS_SPEW, "memset %p to 0 for %d bytes\n",
(void *)graphics, 4520*4096);
memset((void *)graphics, 0, 4520*4096);
printk(BIOS_SPEW, "%ld microseconds\n", globalmicroseconds());
i915_init_done = 1;
oprom_is_loaded = 1;
return 0;
}
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