Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | * linux/include/asm-arm/arch-ixp4xx/io.h |
| 3 | * |
| 4 | * Author: Deepak Saxena <dsaxena@plexity.net> |
| 5 | * |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 6 | * Copyright (C) 2002-2005 MontaVista Software, Inc. |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #ifndef __ASM_ARM_ARCH_IO_H |
| 14 | #define __ASM_ARM_ARCH_IO_H |
| 15 | |
| 16 | #include <asm/hardware.h> |
| 17 | |
| 18 | #define IO_SPACE_LIMIT 0xffff0000 |
| 19 | |
| 20 | #define BIT(x) ((1)<<(x)) |
| 21 | |
| 22 | |
| 23 | extern int (*ixp4xx_pci_read)(u32 addr, u32 cmd, u32* data); |
| 24 | extern int ixp4xx_pci_write(u32 addr, u32 cmd, u32 data); |
| 25 | |
| 26 | |
| 27 | /* |
| 28 | * IXP4xx provides two methods of accessing PCI memory space: |
| 29 | * |
| 30 | * 1) A direct mapped window from 0x48000000 to 0x4bffffff (64MB). |
| 31 | * To access PCI via this space, we simply ioremap() the BAR |
| 32 | * into the kernel and we can use the standard read[bwl]/write[bwl] |
| 33 | * macros. This is the preffered method due to speed but it |
| 34 | * limits the system to just 64MB of PCI memory. This can be |
| 35 | * problamatic if using video cards and other memory-heavy |
| 36 | * targets. |
| 37 | * |
| 38 | * 2) If > 64MB of memory space is required, the IXP4xx can be configured |
| 39 | * to use indirect registers to access PCI (as we do below for I/O |
| 40 | * transactions). This allows for up to 128MB (0x48000000 to 0x4fffffff) |
| 41 | * of memory on the bus. The disadvantadge of this is that every |
| 42 | * PCI access requires three local register accesses plus a spinlock, |
| 43 | * but in some cases the performance hit is acceptable. In addition, |
| 44 | * you cannot mmap() PCI devices in this case. |
| 45 | * |
| 46 | */ |
| 47 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
| 48 | |
| 49 | #define __mem_pci(a) (a) |
| 50 | |
| 51 | #else |
| 52 | |
| 53 | #include <linux/mm.h> |
| 54 | |
| 55 | /* |
| 56 | * In the case of using indirect PCI, we simply return the actual PCI |
| 57 | * address and our read/write implementation use that to drive the |
| 58 | * access registers. If something outside of PCI is ioremap'd, we |
| 59 | * fallback to the default. |
| 60 | */ |
| 61 | static inline void __iomem * |
| 62 | __ixp4xx_ioremap(unsigned long addr, size_t size, unsigned long flags, unsigned long align) |
| 63 | { |
| 64 | extern void __iomem * __ioremap(unsigned long, size_t, unsigned long, unsigned long); |
| 65 | if((addr < 0x48000000) || (addr > 0x4fffffff)) |
| 66 | return __ioremap(addr, size, flags, align); |
| 67 | |
| 68 | return (void *)addr; |
| 69 | } |
| 70 | |
| 71 | static inline void |
| 72 | __ixp4xx_iounmap(void __iomem *addr) |
| 73 | { |
| 74 | extern void __iounmap(void __iomem *addr); |
| 75 | |
| 76 | if ((u32)addr >= VMALLOC_START) |
| 77 | __iounmap(addr); |
| 78 | } |
| 79 | |
| 80 | #define __arch_ioremap(a, s, f, x) __ixp4xx_ioremap(a, s, f, x) |
| 81 | #define __arch_iounmap(a) __ixp4xx_iounmap(a) |
| 82 | |
| 83 | #define writeb(p, v) __ixp4xx_writeb(p, v) |
| 84 | #define writew(p, v) __ixp4xx_writew(p, v) |
| 85 | #define writel(p, v) __ixp4xx_writel(p, v) |
| 86 | |
| 87 | #define writesb(p, v, l) __ixp4xx_writesb(p, v, l) |
| 88 | #define writesw(p, v, l) __ixp4xx_writesw(p, v, l) |
| 89 | #define writesl(p, v, l) __ixp4xx_writesl(p, v, l) |
| 90 | |
| 91 | #define readb(p) __ixp4xx_readb(p) |
| 92 | #define readw(p) __ixp4xx_readw(p) |
| 93 | #define readl(p) __ixp4xx_readl(p) |
| 94 | |
| 95 | #define readsb(p, v, l) __ixp4xx_readsb(p, v, l) |
| 96 | #define readsw(p, v, l) __ixp4xx_readsw(p, v, l) |
| 97 | #define readsl(p, v, l) __ixp4xx_readsl(p, v, l) |
| 98 | |
| 99 | static inline void |
| 100 | __ixp4xx_writeb(u8 value, u32 addr) |
| 101 | { |
| 102 | u32 n, byte_enables, data; |
| 103 | |
| 104 | if (addr >= VMALLOC_START) { |
| 105 | __raw_writeb(value, addr); |
| 106 | return; |
| 107 | } |
| 108 | |
| 109 | n = addr % 4; |
| 110 | byte_enables = (0xf & ~BIT(n)) << IXP4XX_PCI_NP_CBE_BESL; |
| 111 | data = value << (8*n); |
| 112 | ixp4xx_pci_write(addr, byte_enables | NP_CMD_MEMWRITE, data); |
| 113 | } |
| 114 | |
| 115 | static inline void |
| 116 | __ixp4xx_writesb(u32 bus_addr, u8 *vaddr, int count) |
| 117 | { |
| 118 | while (count--) |
| 119 | writeb(*vaddr++, bus_addr); |
| 120 | } |
| 121 | |
| 122 | static inline void |
| 123 | __ixp4xx_writew(u16 value, u32 addr) |
| 124 | { |
| 125 | u32 n, byte_enables, data; |
| 126 | |
| 127 | if (addr >= VMALLOC_START) { |
| 128 | __raw_writew(value, addr); |
| 129 | return; |
| 130 | } |
| 131 | |
| 132 | n = addr % 4; |
| 133 | byte_enables = (0xf & ~(BIT(n) | BIT(n+1))) << IXP4XX_PCI_NP_CBE_BESL; |
| 134 | data = value << (8*n); |
| 135 | ixp4xx_pci_write(addr, byte_enables | NP_CMD_MEMWRITE, data); |
| 136 | } |
| 137 | |
| 138 | static inline void |
| 139 | __ixp4xx_writesw(u32 bus_addr, u16 *vaddr, int count) |
| 140 | { |
| 141 | while (count--) |
| 142 | writew(*vaddr++, bus_addr); |
| 143 | } |
| 144 | |
| 145 | static inline void |
| 146 | __ixp4xx_writel(u32 value, u32 addr) |
| 147 | { |
| 148 | if (addr >= VMALLOC_START) { |
| 149 | __raw_writel(value, addr); |
| 150 | return; |
| 151 | } |
| 152 | |
| 153 | ixp4xx_pci_write(addr, NP_CMD_MEMWRITE, value); |
| 154 | } |
| 155 | |
| 156 | static inline void |
| 157 | __ixp4xx_writesl(u32 bus_addr, u32 *vaddr, int count) |
| 158 | { |
| 159 | while (count--) |
| 160 | writel(*vaddr++, bus_addr); |
| 161 | } |
| 162 | |
| 163 | static inline unsigned char |
| 164 | __ixp4xx_readb(u32 addr) |
| 165 | { |
| 166 | u32 n, byte_enables, data; |
| 167 | |
| 168 | if (addr >= VMALLOC_START) |
| 169 | return __raw_readb(addr); |
| 170 | |
| 171 | n = addr % 4; |
| 172 | byte_enables = (0xf & ~BIT(n)) << IXP4XX_PCI_NP_CBE_BESL; |
| 173 | if (ixp4xx_pci_read(addr, byte_enables | NP_CMD_MEMREAD, &data)) |
| 174 | return 0xff; |
| 175 | |
| 176 | return data >> (8*n); |
| 177 | } |
| 178 | |
| 179 | static inline void |
| 180 | __ixp4xx_readsb(u32 bus_addr, u8 *vaddr, u32 count) |
| 181 | { |
| 182 | while (count--) |
| 183 | *vaddr++ = readb(bus_addr); |
| 184 | } |
| 185 | |
| 186 | static inline unsigned short |
| 187 | __ixp4xx_readw(u32 addr) |
| 188 | { |
| 189 | u32 n, byte_enables, data; |
| 190 | |
| 191 | if (addr >= VMALLOC_START) |
| 192 | return __raw_readw(addr); |
| 193 | |
| 194 | n = addr % 4; |
| 195 | byte_enables = (0xf & ~(BIT(n) | BIT(n+1))) << IXP4XX_PCI_NP_CBE_BESL; |
| 196 | if (ixp4xx_pci_read(addr, byte_enables | NP_CMD_MEMREAD, &data)) |
| 197 | return 0xffff; |
| 198 | |
| 199 | return data>>(8*n); |
| 200 | } |
| 201 | |
| 202 | static inline void |
| 203 | __ixp4xx_readsw(u32 bus_addr, u16 *vaddr, u32 count) |
| 204 | { |
| 205 | while (count--) |
| 206 | *vaddr++ = readw(bus_addr); |
| 207 | } |
| 208 | |
| 209 | static inline unsigned long |
| 210 | __ixp4xx_readl(u32 addr) |
| 211 | { |
| 212 | u32 data; |
| 213 | |
| 214 | if (addr >= VMALLOC_START) |
| 215 | return __raw_readl(addr); |
| 216 | |
| 217 | if (ixp4xx_pci_read(addr, NP_CMD_MEMREAD, &data)) |
| 218 | return 0xffffffff; |
| 219 | |
| 220 | return data; |
| 221 | } |
| 222 | |
| 223 | static inline void |
| 224 | __ixp4xx_readsl(u32 bus_addr, u32 *vaddr, u32 count) |
| 225 | { |
| 226 | while (count--) |
| 227 | *vaddr++ = readl(bus_addr); |
| 228 | } |
| 229 | |
| 230 | |
| 231 | /* |
| 232 | * We can use the built-in functions b/c they end up calling writeb/readb |
| 233 | */ |
| 234 | #define memset_io(c,v,l) _memset_io((c),(v),(l)) |
| 235 | #define memcpy_fromio(a,c,l) _memcpy_fromio((a),(c),(l)) |
| 236 | #define memcpy_toio(c,a,l) _memcpy_toio((c),(a),(l)) |
| 237 | |
| 238 | #define eth_io_copy_and_sum(s,c,l,b) \ |
| 239 | eth_copy_and_sum((s),__mem_pci(c),(l),(b)) |
| 240 | |
| 241 | static inline int |
| 242 | check_signature(unsigned long bus_addr, const unsigned char *signature, |
| 243 | int length) |
| 244 | { |
| 245 | int retval = 0; |
| 246 | do { |
| 247 | if (readb(bus_addr) != *signature) |
| 248 | goto out; |
| 249 | bus_addr++; |
| 250 | signature++; |
| 251 | length--; |
| 252 | } while (length); |
| 253 | retval = 1; |
| 254 | out: |
| 255 | return retval; |
| 256 | } |
| 257 | |
| 258 | #endif |
| 259 | |
| 260 | /* |
| 261 | * IXP4xx does not have a transparent cpu -> PCI I/O translation |
| 262 | * window. Instead, it has a set of registers that must be tweaked |
| 263 | * with the proper byte lanes, command types, and address for the |
| 264 | * transaction. This means that we need to override the default |
| 265 | * I/O functions. |
| 266 | */ |
| 267 | #define outb(p, v) __ixp4xx_outb(p, v) |
| 268 | #define outw(p, v) __ixp4xx_outw(p, v) |
| 269 | #define outl(p, v) __ixp4xx_outl(p, v) |
| 270 | |
| 271 | #define outsb(p, v, l) __ixp4xx_outsb(p, v, l) |
| 272 | #define outsw(p, v, l) __ixp4xx_outsw(p, v, l) |
| 273 | #define outsl(p, v, l) __ixp4xx_outsl(p, v, l) |
| 274 | |
| 275 | #define inb(p) __ixp4xx_inb(p) |
| 276 | #define inw(p) __ixp4xx_inw(p) |
| 277 | #define inl(p) __ixp4xx_inl(p) |
| 278 | |
| 279 | #define insb(p, v, l) __ixp4xx_insb(p, v, l) |
| 280 | #define insw(p, v, l) __ixp4xx_insw(p, v, l) |
| 281 | #define insl(p, v, l) __ixp4xx_insl(p, v, l) |
| 282 | |
| 283 | |
| 284 | static inline void |
| 285 | __ixp4xx_outb(u8 value, u32 addr) |
| 286 | { |
| 287 | u32 n, byte_enables, data; |
| 288 | n = addr % 4; |
| 289 | byte_enables = (0xf & ~BIT(n)) << IXP4XX_PCI_NP_CBE_BESL; |
| 290 | data = value << (8*n); |
| 291 | ixp4xx_pci_write(addr, byte_enables | NP_CMD_IOWRITE, data); |
| 292 | } |
| 293 | |
| 294 | static inline void |
| 295 | __ixp4xx_outsb(u32 io_addr, const u8 *vaddr, u32 count) |
| 296 | { |
| 297 | while (count--) |
| 298 | outb(*vaddr++, io_addr); |
| 299 | } |
| 300 | |
| 301 | static inline void |
| 302 | __ixp4xx_outw(u16 value, u32 addr) |
| 303 | { |
| 304 | u32 n, byte_enables, data; |
| 305 | n = addr % 4; |
| 306 | byte_enables = (0xf & ~(BIT(n) | BIT(n+1))) << IXP4XX_PCI_NP_CBE_BESL; |
| 307 | data = value << (8*n); |
| 308 | ixp4xx_pci_write(addr, byte_enables | NP_CMD_IOWRITE, data); |
| 309 | } |
| 310 | |
| 311 | static inline void |
| 312 | __ixp4xx_outsw(u32 io_addr, const u16 *vaddr, u32 count) |
| 313 | { |
| 314 | while (count--) |
| 315 | outw(cpu_to_le16(*vaddr++), io_addr); |
| 316 | } |
| 317 | |
| 318 | static inline void |
| 319 | __ixp4xx_outl(u32 value, u32 addr) |
| 320 | { |
| 321 | ixp4xx_pci_write(addr, NP_CMD_IOWRITE, value); |
| 322 | } |
| 323 | |
| 324 | static inline void |
| 325 | __ixp4xx_outsl(u32 io_addr, const u32 *vaddr, u32 count) |
| 326 | { |
| 327 | while (count--) |
| 328 | outl(*vaddr++, io_addr); |
| 329 | } |
| 330 | |
| 331 | static inline u8 |
| 332 | __ixp4xx_inb(u32 addr) |
| 333 | { |
| 334 | u32 n, byte_enables, data; |
| 335 | n = addr % 4; |
| 336 | byte_enables = (0xf & ~BIT(n)) << IXP4XX_PCI_NP_CBE_BESL; |
| 337 | if (ixp4xx_pci_read(addr, byte_enables | NP_CMD_IOREAD, &data)) |
| 338 | return 0xff; |
| 339 | |
| 340 | return data >> (8*n); |
| 341 | } |
| 342 | |
| 343 | static inline void |
| 344 | __ixp4xx_insb(u32 io_addr, u8 *vaddr, u32 count) |
| 345 | { |
| 346 | while (count--) |
| 347 | *vaddr++ = inb(io_addr); |
| 348 | } |
| 349 | |
| 350 | static inline u16 |
| 351 | __ixp4xx_inw(u32 addr) |
| 352 | { |
| 353 | u32 n, byte_enables, data; |
| 354 | n = addr % 4; |
| 355 | byte_enables = (0xf & ~(BIT(n) | BIT(n+1))) << IXP4XX_PCI_NP_CBE_BESL; |
| 356 | if (ixp4xx_pci_read(addr, byte_enables | NP_CMD_IOREAD, &data)) |
| 357 | return 0xffff; |
| 358 | |
| 359 | return data>>(8*n); |
| 360 | } |
| 361 | |
| 362 | static inline void |
| 363 | __ixp4xx_insw(u32 io_addr, u16 *vaddr, u32 count) |
| 364 | { |
| 365 | while (count--) |
| 366 | *vaddr++ = le16_to_cpu(inw(io_addr)); |
| 367 | } |
| 368 | |
| 369 | static inline u32 |
| 370 | __ixp4xx_inl(u32 addr) |
| 371 | { |
| 372 | u32 data; |
| 373 | if (ixp4xx_pci_read(addr, NP_CMD_IOREAD, &data)) |
| 374 | return 0xffffffff; |
| 375 | |
| 376 | return data; |
| 377 | } |
| 378 | |
| 379 | static inline void |
| 380 | __ixp4xx_insl(u32 io_addr, u32 *vaddr, u32 count) |
| 381 | { |
| 382 | while (count--) |
| 383 | *vaddr++ = inl(io_addr); |
| 384 | } |
| 385 | |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 386 | #define PIO_OFFSET 0x10000UL |
| 387 | #define PIO_MASK 0x0ffffUL |
| 388 | |
| 389 | #define __is_io_address(p) (((unsigned long)p >= PIO_OFFSET) && \ |
| 390 | ((unsigned long)p <= (PIO_MASK + PIO_OFFSET))) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 391 | static inline unsigned int |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 392 | __ixp4xx_ioread8(void __iomem *addr) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 393 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 394 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 395 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 396 | return (unsigned int)__ixp4xx_inb(port & PIO_MASK); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 397 | else |
| 398 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 399 | return (unsigned int)__raw_readb(port); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 400 | #else |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 401 | return (unsigned int)__ixp4xx_readb(port); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 402 | #endif |
| 403 | } |
| 404 | |
| 405 | static inline void |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 406 | __ixp4xx_ioread8_rep(void __iomem *addr, void *vaddr, u32 count) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 407 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 408 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 409 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 410 | __ixp4xx_insb(port & PIO_MASK, vaddr, count); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 411 | else |
| 412 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 413 | __raw_readsb(addr, vaddr, count); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 414 | #else |
| 415 | __ixp4xx_readsb(port, vaddr, count); |
| 416 | #endif |
| 417 | } |
| 418 | |
| 419 | static inline unsigned int |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 420 | __ixp4xx_ioread16(void __iomem *addr) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 421 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 422 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 423 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 424 | return (unsigned int)__ixp4xx_inw(port & PIO_MASK); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 425 | else |
| 426 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
| 427 | return le16_to_cpu(__raw_readw((u32)port)); |
| 428 | #else |
| 429 | return (unsigned int)__ixp4xx_readw((u32)port); |
| 430 | #endif |
| 431 | } |
| 432 | |
| 433 | static inline void |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 434 | __ixp4xx_ioread16_rep(void __iomem *addr, void *vaddr, u32 count) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 435 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 436 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 437 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 438 | __ixp4xx_insw(port & PIO_MASK, vaddr, count); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 439 | else |
| 440 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 441 | __raw_readsw(addr, vaddr, count); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 442 | #else |
| 443 | __ixp4xx_readsw(port, vaddr, count); |
| 444 | #endif |
| 445 | } |
| 446 | |
| 447 | static inline unsigned int |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 448 | __ixp4xx_ioread32(void __iomem *addr) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 449 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 450 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 451 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 452 | return (unsigned int)__ixp4xx_inl(port & PIO_MASK); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 453 | else { |
| 454 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
| 455 | return le32_to_cpu(__raw_readl((u32)port)); |
| 456 | #else |
| 457 | return (unsigned int)__ixp4xx_readl((u32)port); |
| 458 | #endif |
| 459 | } |
| 460 | } |
| 461 | |
| 462 | static inline void |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 463 | __ixp4xx_ioread32_rep(void __iomem *addr, void *vaddr, u32 count) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 464 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 465 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 466 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 467 | __ixp4xx_insl(port & PIO_MASK, vaddr, count); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 468 | else |
| 469 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 470 | __raw_readsl(addr, vaddr, count); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 471 | #else |
| 472 | __ixp4xx_readsl(port, vaddr, count); |
| 473 | #endif |
| 474 | } |
| 475 | |
| 476 | static inline void |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 477 | __ixp4xx_iowrite8(u8 value, void __iomem *addr) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 478 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 479 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 480 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 481 | __ixp4xx_outb(value, port & PIO_MASK); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 482 | else |
| 483 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 484 | __raw_writeb(value, port); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 485 | #else |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 486 | __ixp4xx_writeb(value, port); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 487 | #endif |
| 488 | } |
| 489 | |
| 490 | static inline void |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 491 | __ixp4xx_iowrite8_rep(void __iomem *addr, const void *vaddr, u32 count) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 492 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 493 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 494 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 495 | __ixp4xx_outsb(port & PIO_MASK, vaddr, count); |
| 496 | else |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 497 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 498 | __raw_writesb(addr, vaddr, count); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 499 | #else |
| 500 | __ixp4xx_writesb(port, vaddr, count); |
| 501 | #endif |
| 502 | } |
| 503 | |
| 504 | static inline void |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 505 | __ixp4xx_iowrite16(u16 value, void __iomem *addr) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 506 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 507 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 508 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 509 | __ixp4xx_outw(value, port & PIO_MASK); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 510 | else |
| 511 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 512 | __raw_writew(cpu_to_le16(value), addr); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 513 | #else |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 514 | __ixp4xx_writew(value, port); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 515 | #endif |
| 516 | } |
| 517 | |
| 518 | static inline void |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 519 | __ixp4xx_iowrite16_rep(void __iomem *addr, const void *vaddr, u32 count) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 520 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 521 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 522 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 523 | __ixp4xx_outsw(port & PIO_MASK, vaddr, count); |
| 524 | else |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 525 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 526 | __raw_writesw(addr, vaddr, count); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 527 | #else |
| 528 | __ixp4xx_writesw(port, vaddr, count); |
| 529 | #endif |
| 530 | } |
| 531 | |
| 532 | static inline void |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 533 | __ixp4xx_iowrite32(u32 value, void __iomem *addr) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 534 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 535 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 536 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 537 | __ixp4xx_outl(value, port & PIO_MASK); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 538 | else |
| 539 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 540 | __raw_writel(cpu_to_le32(value), port); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 541 | #else |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 542 | __ixp4xx_writel(value, port); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 543 | #endif |
| 544 | } |
| 545 | |
| 546 | static inline void |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 547 | __ixp4xx_iowrite32_rep(void __iomem *addr, const void *vaddr, u32 count) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 548 | { |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 549 | unsigned long port = (unsigned long __force)addr; |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 550 | if (__is_io_address(port)) |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 551 | __ixp4xx_outsl(port & PIO_MASK, vaddr, count); |
| 552 | else |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 553 | #ifndef CONFIG_IXP4XX_INDIRECT_PCI |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 554 | __raw_writesl(addr, vaddr, count); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 555 | #else |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 556 | __ixp4xx_writesl(port, vaddr, count); |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 557 | #endif |
| 558 | } |
| 559 | |
| 560 | #define ioread8(p) __ixp4xx_ioread8(p) |
| 561 | #define ioread16(p) __ixp4xx_ioread16(p) |
| 562 | #define ioread32(p) __ixp4xx_ioread32(p) |
| 563 | |
| 564 | #define ioread8_rep(p, v, c) __ixp4xx_ioread8_rep(p, v, c) |
| 565 | #define ioread16_rep(p, v, c) __ixp4xx_ioread16_rep(p, v, c) |
| 566 | #define ioread32_rep(p, v, c) __ixp4xx_ioread32_rep(p, v, c) |
| 567 | |
| 568 | #define iowrite8(v,p) __ixp4xx_iowrite8(v,p) |
| 569 | #define iowrite16(v,p) __ixp4xx_iowrite16(v,p) |
| 570 | #define iowrite32(v,p) __ixp4xx_iowrite32(v,p) |
| 571 | |
| 572 | #define iowrite8_rep(p, v, c) __ixp4xx_iowrite8_rep(p, v, c) |
| 573 | #define iowrite16_rep(p, v, c) __ixp4xx_iowrite16_rep(p, v, c) |
| 574 | #define iowrite32_rep(p, v, c) __ixp4xx_iowrite32_rep(p, v, c) |
| 575 | |
David Vrabel | 147056f | 2005-08-31 21:45:14 +0100 | [diff] [blame^] | 576 | #define ioport_map(port, nr) ((void __iomem*)(port + PIO_OFFSET)) |
Deepak Saxena | 450008b | 2005-07-06 23:06:05 +0100 | [diff] [blame] | 577 | #define ioport_unmap(addr) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 578 | |
| 579 | #endif // __ASM_ARM_ARCH_IO_H |
| 580 | |