| Dan Williams | 285f5fa | 2006-12-07 02:59:39 +0100 | [diff] [blame^] | 1 | /* |
| 2 | * iop13xx custom ioremap implementation |
| 3 | * Copyright (c) 2005-2006, Intel Corporation. |
| 4 | * |
| 5 | * This program is free software; you can redistribute it and/or modify it |
| 6 | * under the terms and conditions of the GNU General Public License, |
| 7 | * version 2, as published by the Free Software Foundation. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
| 16 | * Place - Suite 330, Boston, MA 02111-1307 USA. |
| 17 | * |
| 18 | */ |
| 19 | #include <linux/kernel.h> |
| 20 | #include <linux/module.h> |
| 21 | #include <asm/hardware.h> |
| 22 | #include <asm/io.h> |
| 23 | |
| 24 | void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size, |
| 25 | unsigned long flags) |
| 26 | { |
| 27 | void __iomem * retval; |
| 28 | |
| 29 | switch (cookie) { |
| 30 | case IOP13XX_PCIX_LOWER_MEM_RA ... IOP13XX_PCIX_UPPER_MEM_RA: |
| 31 | if (unlikely(!iop13xx_atux_mem_base)) |
| 32 | retval = NULL; |
| 33 | else |
| 34 | retval = (void *)(iop13xx_atux_mem_base + |
| 35 | (cookie - IOP13XX_PCIX_LOWER_MEM_RA)); |
| 36 | break; |
| 37 | case IOP13XX_PCIE_LOWER_MEM_RA ... IOP13XX_PCIE_UPPER_MEM_RA: |
| 38 | if (unlikely(!iop13xx_atue_mem_base)) |
| 39 | retval = NULL; |
| 40 | else |
| 41 | retval = (void *)(iop13xx_atue_mem_base + |
| 42 | (cookie - IOP13XX_PCIE_LOWER_MEM_RA)); |
| 43 | break; |
| 44 | case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA: |
| 45 | retval = __ioremap(IOP13XX_PBI_LOWER_MEM_PA + |
| 46 | (cookie - IOP13XX_PBI_LOWER_MEM_RA), |
| 47 | size, flags); |
| 48 | break; |
| 49 | case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA: |
| 50 | retval = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(cookie); |
| 51 | break; |
| 52 | case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA: |
| 53 | retval = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(cookie); |
| 54 | break; |
| 55 | case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA: |
| 56 | retval = (void *) IOP13XX_PMMR_PHYS_TO_VIRT(cookie); |
| 57 | break; |
| 58 | default: |
| 59 | retval = __ioremap(cookie, size, flags); |
| 60 | } |
| 61 | |
| 62 | return retval; |
| 63 | } |
| 64 | EXPORT_SYMBOL(__iop13xx_ioremap); |
| 65 | |
| 66 | void __iop13xx_iounmap(void __iomem *addr) |
| 67 | { |
| 68 | extern void __iounmap(volatile void __iomem *addr); |
| 69 | |
| 70 | if (iop13xx_atue_mem_base) |
| 71 | if (addr >= (void __iomem *) iop13xx_atue_mem_base && |
| 72 | addr < (void __iomem *) (iop13xx_atue_mem_base + |
| 73 | iop13xx_atue_mem_size)) |
| 74 | goto skip; |
| 75 | |
| 76 | if (iop13xx_atux_mem_base) |
| 77 | if (addr >= (void __iomem *) iop13xx_atux_mem_base && |
| 78 | addr < (void __iomem *) (iop13xx_atux_mem_base + |
| 79 | iop13xx_atux_mem_size)) |
| 80 | goto skip; |
| 81 | |
| 82 | switch ((u32) addr) { |
| 83 | case IOP13XX_PCIE_LOWER_IO_VA ... IOP13XX_PCIE_UPPER_IO_VA: |
| 84 | case IOP13XX_PCIX_LOWER_IO_VA ... IOP13XX_PCIX_UPPER_IO_VA: |
| 85 | case IOP13XX_PMMR_VIRT_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_VA: |
| 86 | goto skip; |
| 87 | } |
| 88 | __iounmap(addr); |
| 89 | |
| 90 | skip: |
| 91 | return; |
| 92 | } |
| 93 | EXPORT_SYMBOL(__iop13xx_iounmap); |