5113f6f70
 김현기
kernel add
|
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
|
/*
* Copyright (c) 2008 Zhang Le <r0bertz@gentoo.org>
* Copyright (c) 2009 Wu Zhangjin <wuzhangjin@gmail.com>
*
* 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; either version 2 of the License, or (at your
* option) any later version.
*/
#ifndef __ASM_MACH_LOONGSON64_PCI_H_
#define __ASM_MACH_LOONGSON64_PCI_H_
extern struct pci_ops loongson_pci_ops;
/* this is an offset from mips_io_port_base */
#define LOONGSON_PCI_IO_START 0x00004000UL
#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
/*
* we use address window2 to map cpu address space to pci space
* window2: cpu [1G, 2G] -> pci [1G, 2G]
* why not use window 0 & 1? because they are used by cpu when booting.
* window0: cpu [0, 256M] -> ddr [0, 256M]
* window1: cpu [256M, 512M] -> pci [256M, 512M]
*/
/* the smallest LOONGSON_CPU_MEM_SRC can be 512M */
#define LOONGSON_CPU_MEM_SRC 0x40000000ul /* 1G */
#define LOONGSON_PCI_MEM_DST LOONGSON_CPU_MEM_SRC
#define LOONGSON_PCI_MEM_START LOONGSON_PCI_MEM_DST
#define LOONGSON_PCI_MEM_END (0x80000000ul-1) /* 2G */
#define MMAP_CPUTOPCI_SIZE (LOONGSON_PCI_MEM_END - \
LOONGSON_PCI_MEM_START + 1)
#else /* loongson2f/32bit & loongson2e */
/* this pci memory space is mapped by pcimap in pci.c */
#ifdef CONFIG_CPU_LOONGSON3
#define LOONGSON_PCI_MEM_START 0x40000000UL
#define LOONGSON_PCI_MEM_END 0x7effffffUL
#else
#define LOONGSON_PCI_MEM_START LOONGSON_PCILO1_BASE
#define LOONGSON_PCI_MEM_END (LOONGSON_PCILO1_BASE + 0x04000000 * 2)
#endif
/* this is an offset from mips_io_port_base */
#define LOONGSON_PCI_IO_START 0x00004000UL
#endif /* !CONFIG_CPU_SUPPORTS_ADDRWINCFG */
#endif /* !__ASM_MACH_LOONGSON64_PCI_H_ */
|