| /* |
| * DaVinci I/O mapping code |
| * |
| * Copyright (C) 2005-2006 Texas Instruments |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/io.h> |
| |
| #include <asm/tlb.h> |
| |
| #define BETWEEN(p, st, sz) ((p) >= (st) && (p) < ((st) + (sz))) |
| #define XLATE(p, pst, vst) ((void __iomem *)((p) - (pst) + (vst))) |
| |
| /* |
| * Intercept ioremap() requests for addresses in our fixed mapping regions. |
| */ |
| void __iomem *davinci_ioremap(unsigned long p, size_t size, unsigned int type) |
| { |
| if (BETWEEN(p, IO_PHYS, IO_SIZE)) |
| return XLATE(p, IO_PHYS, IO_VIRT); |
| |
| return __arm_ioremap_caller(p, size, type, __builtin_return_address(0)); |
| } |
| EXPORT_SYMBOL(davinci_ioremap); |
| |
| void davinci_iounmap(volatile void __iomem *addr) |
| { |
| unsigned long virt = (unsigned long)addr; |
| |
| if (virt >= VMALLOC_START && virt < VMALLOC_END) |
| __iounmap(addr); |
| } |
| EXPORT_SYMBOL(davinci_iounmap); |