blob: c4dd21e78fd0114f75e2fdd10b01284ddfd8f876 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 Advanced Micro Devices, 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.
*/
#include <console/console.h>
#include <device/device.h>
#include <device/pci.h>
#include <arch/io.h>
#include <cpu/x86/msr.h>
#include <cpu/amd/mtrr.h>
#include <device/pci_def.h>
#include <southbridge/amd/sb800/sb800.h>
u8 is_dev3_present(void);
void set_pcie_dereset(void);
void set_pcie_reset(void);
void enable_int_gfx(void);
/* GPIO6. */
void enable_int_gfx(void)
{
u8 byte;
volatile u8 *gpio_reg;
pm_iowrite(0xEA, 0x01); /* diable the PCIB */
/* Disable Gec */
byte = pm_ioread(0xF6);
byte |= 1;
pm_iowrite(0xF6, byte);
/* make sure the fed80000 is accessible */
byte = pm_ioread(0x24);
byte |= 1;
pm_iowrite(0x24, byte);
gpio_reg = (volatile u8 *)0xFED80000 + 0xD00; /* IoMux Register */
*(gpio_reg + 0x6) = 0x1; /* Int_vga_en */
*(gpio_reg + 170) = 0x1; /* gpio_gate */
gpio_reg = (volatile u8 *)0xFED80000 + 0x100; /* GPIO Registers */
*(gpio_reg + 0x6) = 0x8;
*(gpio_reg + 170) = 0x0;
}
/*
* Bimini uses GPIO 6 as PCIe slot reset, GPIO4 as GFX slot reset. We need to
* pull it up before training the slot.
***/
void set_pcie_dereset(void)
{
/* GPIO 50h reset PCIe slot */
}
void set_pcie_reset(void)
{
/* GPIO 50h reset PCIe slot */
}
u8 is_dev3_present(void)
{
return 0;
}
/*************************************************
* enable the dedicated function in bimini board.
* This function called early than rs780_enable.
*************************************************/
static void mainboard_enable(device_t dev)
{
printk(BIOS_INFO, "Mainboard BIMINI Enable. dev=0x%p\n", dev);
set_pcie_dereset();
enable_int_gfx();
}
struct chip_operations mainboard_ops = {
.enable_dev = mainboard_enable,
};
|
