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2874c5fd28
Based on 1 normalized pattern(s): 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 extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 3029 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190527070032.746973796@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
50 lines
1.5 KiB
C
50 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (c) 2008 Zhang Le <r0bertz@gentoo.org>
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* Copyright (c) 2009 Wu Zhangjin <wuzhangjin@gmail.com>
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*/
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#ifndef __ASM_MACH_LOONGSON64_PCI_H_
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#define __ASM_MACH_LOONGSON64_PCI_H_
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extern struct pci_ops loongson_pci_ops;
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/* this is an offset from mips_io_port_base */
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#define LOONGSON_PCI_IO_START 0x00004000UL
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#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
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/*
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* we use address window2 to map cpu address space to pci space
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* window2: cpu [1G, 2G] -> pci [1G, 2G]
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* why not use window 0 & 1? because they are used by cpu when booting.
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* window0: cpu [0, 256M] -> ddr [0, 256M]
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* window1: cpu [256M, 512M] -> pci [256M, 512M]
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*/
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/* the smallest LOONGSON_CPU_MEM_SRC can be 512M */
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#define LOONGSON_CPU_MEM_SRC 0x40000000ul /* 1G */
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#define LOONGSON_PCI_MEM_DST LOONGSON_CPU_MEM_SRC
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#define LOONGSON_PCI_MEM_START LOONGSON_PCI_MEM_DST
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#define LOONGSON_PCI_MEM_END (0x80000000ul-1) /* 2G */
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#define MMAP_CPUTOPCI_SIZE (LOONGSON_PCI_MEM_END - \
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LOONGSON_PCI_MEM_START + 1)
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#else /* loongson2f/32bit & loongson2e */
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/* this pci memory space is mapped by pcimap in pci.c */
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#ifdef CONFIG_CPU_LOONGSON3
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#define LOONGSON_PCI_MEM_START 0x40000000UL
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#define LOONGSON_PCI_MEM_END 0x7effffffUL
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#else
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#define LOONGSON_PCI_MEM_START LOONGSON_PCILO1_BASE
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#define LOONGSON_PCI_MEM_END (LOONGSON_PCILO1_BASE + 0x04000000 * 2)
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#endif
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/* this is an offset from mips_io_port_base */
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#define LOONGSON_PCI_IO_START 0x00004000UL
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#endif /* !CONFIG_CPU_SUPPORTS_ADDRWINCFG */
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#endif /* !__ASM_MACH_LOONGSON64_PCI_H_ */
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