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- /* SPDX-License-Identifier: GPL-2.0-or-later */
- /*
- * Copyright (c) 2008 Zhang Le <[email protected]>
- * Copyright (c) 2009 Wu Zhangjin <[email protected]>
- */
- #ifndef __ASM_MACH_LOONGSON2EF_PCI_H_
- #define __ASM_MACH_LOONGSON2EF_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 */
- #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 /* !CONFIG_CPU_SUPPORTS_ADDRWINCFG */
- #endif /* !__ASM_MACH_LOONGSON2EF_PCI_H_ */
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