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| author | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-01-21 23:55:25 -0800 |
|---|---|---|
| committer | Dmitry Torokhov <dmitry.torokhov@gmail.com> | 2010-01-21 23:55:25 -0800 |
| commit | 7755726fe90a8b253659756e6de68c1a55aa427f (patch) | |
| tree | a3523fa77e07854db3b8089e3066a55ea997060c /arch/mips/include/asm/mach-loongson/pci.h | |
| parent | 3bf127637e22ddf95e67e10a23c339cee3d52429 (diff) | |
| parent | 92dcffb916d309aa01778bf8963a6932e4014d07 (diff) | |
Merge commit 'v2.6.33-rc5' into next
Diffstat (limited to 'arch/mips/include/asm/mach-loongson/pci.h')
| -rw-r--r-- | arch/mips/include/asm/mach-loongson/pci.h | 34 |
1 files changed, 29 insertions, 5 deletions
diff --git a/arch/mips/include/asm/mach-loongson/pci.h b/arch/mips/include/asm/mach-loongson/pci.h index f1663ca81da..a199a4f6de4 100644 --- a/arch/mips/include/asm/mach-loongson/pci.h +++ b/arch/mips/include/asm/mach-loongson/pci.h @@ -1,5 +1,6 @@ /* * Copyright (c) 2008 Zhang Le <r0bertz@gentoo.org> + * Copyright (c) 2009 Wu Zhangjin <wuzj@lemote.com> * * This program is free software; you can redistribute it * and/or modify it under the terms of the GNU General @@ -22,16 +23,39 @@ #ifndef __ASM_MACH_LOONGSON_PCI_H_ #define __ASM_MACH_LOONGSON_PCI_H_ -extern struct pci_ops bonito64_pci_ops; +extern struct pci_ops loongson_pci_ops; -#ifdef CONFIG_LEMOTE_FULOONG2E +/* 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 */ -#define LOONGSON_PCI_MEM_START BONITO_PCILO1_BASE -#define LOONGSON_PCI_MEM_END (BONITO_PCILO1_BASE + 0x04000000 * 2) +#define LOONGSON_PCI_MEM_START LOONGSON_PCILO1_BASE +#define LOONGSON_PCI_MEM_END (LOONGSON_PCILO1_BASE + 0x04000000 * 2) /* this is an offset from mips_io_port_base */ #define LOONGSON_PCI_IO_START 0x00004000UL -#endif +#endif /* !CONFIG_CPU_SUPPORTS_ADDRWINCFG */ #endif /* !__ASM_MACH_LOONGSON_PCI_H_ */ |