projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 16216333 | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 7cfb62a2 IK |
2 | /* |
| 3 | * Support PCI IO workaround | |
| 4 | * | |
| 5 | * (C) Copyright 2007-2008 TOSHIBA CORPORATION | |
| 7cfb62a2 IK |
6 | */ |
| 7 | ||
| 8 | #ifndef _IO_WORKAROUNDS_H | |
| 9 | #define _IO_WORKAROUNDS_H | |
| 10 | ||
| 14b4d976 | 11 | #ifdef CONFIG_PPC_IO_WORKAROUNDS |
| 7cfb62a2 IK |
12 | #include <linux/io.h> |
| 13 | #include <asm/pci-bridge.h> | |
| 14 | ||
| 15 | /* Bus info */ | |
| 16 | struct iowa_bus { | |
| 17 | struct pci_controller *phb; | |
| 18 | struct ppc_pci_io *ops; | |
| 19 | void *private; | |
| 20 | }; | |
| 21 | ||
| cad5cef6 GKH |
22 | void iowa_register_bus(struct pci_controller *, struct ppc_pci_io *, |
| 23 | int (*)(struct iowa_bus *, void *), void *); | |
| 7cfb62a2 IK |
24 | struct iowa_bus *iowa_mem_find_bus(const PCI_IO_ADDR); |
| 25 | struct iowa_bus *iowa_pio_find_bus(unsigned long); | |
| 26 | ||
| 27 | extern struct ppc_pci_io spiderpci_ops; | |
| 28 | extern int spiderpci_iowa_init(struct iowa_bus *, void *); | |
| 29 | ||
| 30 | #define SPIDER_PCI_REG_BASE 0xd000 | |
| 31 | #define SPIDER_PCI_REG_SIZE 0x1000 | |
| 32 | #define SPIDER_PCI_VCI_CNTL_STAT 0x0110 | |
| 33 | #define SPIDER_PCI_DUMMY_READ 0x0810 | |
| 34 | #define SPIDER_PCI_DUMMY_READ_BASE 0x0814 | |
| 35 | ||
| 14b4d976 CL |
36 | #endif |
| 37 | ||
| 38 | #if defined(CONFIG_PPC_IO_WORKAROUNDS) && defined(CONFIG_PPC_INDIRECT_MMIO) | |
| 39 | extern bool io_workaround_inited; | |
| 40 | ||
| 41 | static inline bool iowa_is_active(void) | |
| 42 | { | |
| 43 | return unlikely(io_workaround_inited); | |
| 44 | } | |
| 45 | #else | |
| 46 | static inline bool iowa_is_active(void) | |
| 47 | { | |
| 48 | return false; | |
| 49 | } | |
| 50 | #endif | |
| 51 | ||
| 52 | void __iomem *iowa_ioremap(phys_addr_t addr, unsigned long size, | |
| 53 | pgprot_t prot, void *caller); | |
| 54 | ||
| 7cfb62a2 | 55 | #endif /* _IO_WORKAROUNDS_H */ |