diff options
Diffstat (limited to 'arch/mips/include/asm/mach-loongson/pci.h')
-rw-r--r-- | arch/mips/include/asm/mach-loongson/pci.h | 28 |
1 files changed, 26 insertions, 2 deletions
diff --git a/arch/mips/include/asm/mach-loongson/pci.h b/arch/mips/include/asm/mach-loongson/pci.h index 576487c00470..31ba90891ec0 100644 --- a/arch/mips/include/asm/mach-loongson/pci.h +++ b/arch/mips/include/asm/mach-loongson/pci.h | |||
@@ -1,5 +1,6 @@ | |||
1 | /* | 1 | /* |
2 | * Copyright (c) 2008 Zhang Le <r0bertz@gentoo.org> | 2 | * Copyright (c) 2008 Zhang Le <r0bertz@gentoo.org> |
3 | * Copyright (c) 2009 Wu Zhangjin <wuzj@lemote.com> | ||
3 | * | 4 | * |
4 | * This program is free software; you can redistribute it | 5 | * This program is free software; you can redistribute it |
5 | * and/or modify it under the terms of the GNU General | 6 | * and/or modify it under the terms of the GNU General |
@@ -24,7 +25,30 @@ | |||
24 | 25 | ||
25 | extern struct pci_ops loongson_pci_ops; | 26 | extern struct pci_ops loongson_pci_ops; |
26 | 27 | ||
27 | #ifdef CONFIG_LEMOTE_FULOONG2E | 28 | /* this is an offset from mips_io_port_base */ |
29 | #define LOONGSON_PCI_IO_START 0x00004000UL | ||
30 | |||
31 | #if defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT) | ||
32 | |||
33 | /* | ||
34 | * we use address window2 to map cpu address space to pci space | ||
35 | * window2: cpu [1G, 2G] -> pci [1G, 2G] | ||
36 | * why not use window 0 & 1? because they are used by cpu when booting. | ||
37 | * window0: cpu [0, 256M] -> ddr [0, 256M] | ||
38 | * window1: cpu [256M, 512M] -> pci [256M, 512M] | ||
39 | */ | ||
40 | |||
41 | /* the smallest LOONGSON_CPU_MEM_SRC can be 512M */ | ||
42 | #define LOONGSON_CPU_MEM_SRC 0x40000000ul /* 1G */ | ||
43 | #define LOONGSON_PCI_MEM_DST LOONGSON_CPU_MEM_SRC | ||
44 | |||
45 | #define LOONGSON_PCI_MEM_START LOONGSON_PCI_MEM_DST | ||
46 | #define LOONGSON_PCI_MEM_END (0x80000000ul-1) /* 2G */ | ||
47 | |||
48 | #define MMAP_CPUTOPCI_SIZE (LOONGSON_PCI_MEM_END - \ | ||
49 | LOONGSON_PCI_MEM_START + 1) | ||
50 | |||
51 | #else /* loongson2f/32bit & loongson2e */ | ||
28 | 52 | ||
29 | /* this pci memory space is mapped by pcimap in pci.c */ | 53 | /* this pci memory space is mapped by pcimap in pci.c */ |
30 | #define LOONGSON_PCI_MEM_START LOONGSON_PCILO1_BASE | 54 | #define LOONGSON_PCI_MEM_START LOONGSON_PCILO1_BASE |
@@ -32,6 +56,6 @@ extern struct pci_ops loongson_pci_ops; | |||
32 | /* this is an offset from mips_io_port_base */ | 56 | /* this is an offset from mips_io_port_base */ |
33 | #define LOONGSON_PCI_IO_START 0x00004000UL | 57 | #define LOONGSON_PCI_IO_START 0x00004000UL |
34 | 58 | ||
35 | #endif | 59 | #endif /* !(defined(CONFIG_CPU_LOONGSON2F) && defined(CONFIG_64BIT))*/ |
36 | 60 | ||
37 | #endif /* !__ASM_MACH_LOONGSON_PCI_H_ */ | 61 | #endif /* !__ASM_MACH_LOONGSON_PCI_H_ */ |