projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef __ALPHA_POLARIS__H__ |
| 2 | #define __ALPHA_POLARIS__H__ | |
| 3 | ||
| 4 | #include <linux/types.h> | |
| 5 | #include <asm/compiler.h> | |
| 6 | ||
| 7 | /* | |
| 8 | * POLARIS is the internal name for a core logic chipset which provides | |
| 9 | * memory controller and PCI access for the 21164PC chip based systems. | |
| 10 | * | |
| 11 | * This file is based on: | |
| 12 | * | |
| 13 | * Polaris System Controller | |
| 14 | * Device Functional Specification | |
| 15 | * 22-Jan-98 | |
| 16 | * Rev. 4.2 | |
| 17 | * | |
| 18 | */ | |
| 19 | ||
| 20 | /* Polaris memory regions */ | |
| 21 | #define POLARIS_SPARSE_MEM_BASE (IDENT_ADDR + 0xf800000000UL) | |
| 22 | #define POLARIS_DENSE_MEM_BASE (IDENT_ADDR + 0xf900000000UL) | |
| 23 | #define POLARIS_SPARSE_IO_BASE (IDENT_ADDR + 0xf980000000UL) | |
| 24 | #define POLARIS_SPARSE_CONFIG_BASE (IDENT_ADDR + 0xf9c0000000UL) | |
| 25 | #define POLARIS_IACK_BASE (IDENT_ADDR + 0xf9f8000000UL) | |
| 26 | #define POLARIS_DENSE_IO_BASE (IDENT_ADDR + 0xf9fc000000UL) | |
| 27 | #define POLARIS_DENSE_CONFIG_BASE (IDENT_ADDR + 0xf9fe000000UL) | |
| 28 | ||
| 29 | #define POLARIS_IACK_SC POLARIS_IACK_BASE | |
| 30 | ||
| 31 | /* The Polaris command/status registers live in PCI Config space for | |
| 32 | * bus 0/device 0. As such, they may be bytes, words, or doublewords. | |
| 33 | */ | |
| 34 | #define POLARIS_W_VENID (POLARIS_DENSE_CONFIG_BASE) | |
| 35 | #define POLARIS_W_DEVID (POLARIS_DENSE_CONFIG_BASE+2) | |
| 36 | #define POLARIS_W_CMD (POLARIS_DENSE_CONFIG_BASE+4) | |
| 37 | #define POLARIS_W_STATUS (POLARIS_DENSE_CONFIG_BASE+6) | |
| 38 | ||
| 39 | /* | |
| 40 | * Data structure for handling POLARIS machine checks: | |
| 41 | */ | |
| 42 | struct el_POLARIS_sysdata_mcheck { | |
| 43 | u_long psc_status; | |
| 44 | u_long psc_pcictl0; | |
| 45 | u_long psc_pcictl1; | |
| 46 | u_long psc_pcictl2; | |
| 47 | }; | |
| 48 | ||
| 49 | #ifdef __KERNEL__ | |
| 50 | ||
| 51 | #ifndef __EXTERN_INLINE | |
| 52 | #define __EXTERN_INLINE extern inline | |
| 53 | #define __IO_EXTERN_INLINE | |
| 54 | #endif | |
| 55 | ||
| 56 | /* | |
| 57 | * I/O functions: | |
| 58 | * | |
| 59 | * POLARIS, the PCI/memory support chipset for the PCA56 (21164PC) | |
| 60 | * processors, can use either a sparse address mapping scheme, or the | |
| 61 | * so-called byte-word PCI address space, to get at PCI memory and I/O. | |
| 62 | * | |
| 63 | * However, we will support only the BWX form. | |
| 64 | */ | |
| 65 | ||
| 66 | /* | |
| 67 | * Memory functions. Polaris allows all accesses (byte/word | |
| 68 | * as well as long/quad) to be done through dense space. | |
| 69 | * | |
| 70 | * We will only support DENSE access via BWX insns. | |
| 71 | */ | |
| 72 | ||
| 73 | __EXTERN_INLINE void __iomem *polaris_ioportmap(unsigned long addr) | |
| 74 | { | |
| 75 | return (void __iomem *)(addr + POLARIS_DENSE_IO_BASE); | |
| 76 | } | |
| 77 | ||
| 78 | __EXTERN_INLINE void __iomem *polaris_ioremap(unsigned long addr, | |
| 79 | unsigned long size) | |
| 80 | { | |
| 81 | return (void __iomem *)(addr + POLARIS_DENSE_MEM_BASE); | |
| 82 | } | |
| 83 | ||
| 84 | __EXTERN_INLINE int polaris_is_ioaddr(unsigned long addr) | |
| 85 | { | |
| 86 | return addr >= POLARIS_SPARSE_MEM_BASE; | |
| 87 | } | |
| 88 | ||
| 89 | __EXTERN_INLINE int polaris_is_mmio(const volatile void __iomem *addr) | |
| 90 | { | |
| 91 | return (unsigned long)addr < POLARIS_SPARSE_IO_BASE; | |
| 92 | } | |
| 93 | ||
| 94 | #undef __IO_PREFIX | |
| 95 | #define __IO_PREFIX polaris | |
| 96 | #define polaris_trivial_rw_bw 1 | |
| 97 | #define polaris_trivial_rw_lq 1 | |
| 98 | #define polaris_trivial_io_bw 1 | |
| 99 | #define polaris_trivial_io_lq 1 | |
| 100 | #define polaris_trivial_iounmap 1 | |
| 101 | #include <asm/io_trivial.h> | |
| 102 | ||
| 103 | #ifdef __IO_EXTERN_INLINE | |
| 104 | #undef __EXTERN_INLINE | |
| 105 | #undef __IO_EXTERN_INLINE | |
| 106 | #endif | |
| 107 | ||
| 108 | #endif /* __KERNEL__ */ | |
| 109 | ||
| 110 | #endif /* __ALPHA_POLARIS__H__ */ |