blob: 87f06b3f5a9cbf29a6ceb8a6eb496cd3937fcd67 (
plain) (
blame)
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
|
/*
* arch/mips/vr41xx/nec-cmbvr4133/init.c
*
* PROM library initialisation code for NEC CMB-VR4133 board.
*
* Author: Yoichi Yuasa <yyuasa@mvista.com, or source@mvista.com> and
* Jun Sun <jsun@mvista.com, or source@mvista.com> and
* Alex Sapkov <asapkov@ru.mvista.com>
*
* 2001-2004 (c) MontaVista, Software, Inc. This file is licensed under
* the terms of the GNU General Public License version 2. This program
* is licensed "as is" without any warranty of any kind, whether express
* or implied.
*
* Support for NEC-CMBVR4133 in 2.6
* Manish Lachwani (mlachwani@mvista.com)
*/
#include <linux/config.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <asm/bootinfo.h>
#ifdef CONFIG_ROCKHOPPER
#include <asm/io.h>
#include <linux/pci.h>
#define PCICONFDREG 0xaf000c14
#define PCICONFAREG 0xaf000c18
#endif
const char *get_system_type(void)
{
return "NEC CMB-VR4133";
}
#ifdef CONFIG_ROCKHOPPER
void disable_pcnet(void)
{
u32 data;
/*
* Workaround for the bug in PMON on VR4133. PMON leaves
* AMD PCNet controller (on Rockhopper) initialized and running in
* bus master mode. We have do disable it before doing any
* further initialization. Or we get problems with PCI bus 2
* and random lockups and crashes.
*/
writel((2 << 16) |
(PCI_DEVFN(1,0) << 8) |
(0 & 0xfc) |
1UL,
PCICONFAREG);
data = readl(PCICONFDREG);
writel((2 << 16) |
(PCI_DEVFN(1,0) << 8) |
(4 & 0xfc) |
1UL,
PCICONFAREG);
data = readl(PCICONFDREG);
writel((2 << 16) |
(PCI_DEVFN(1,0) << 8) |
(4 & 0xfc) |
1UL,
PCICONFAREG);
data &= ~4;
writel(data, PCICONFDREG);
}
#endif
|
