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 24void * __iomem __iop13xx_io(unsigned long io_addr) 25{ 26 void __iomem * io_virt; 27 28 switch (io_addr) { 29 case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA: 30 io_virt = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(io_addr); 31 break; 32 case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA: 33 io_virt = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(io_addr); 34 break; 35 default: 36 BUG(); 37 } 38 39 return io_virt; 40} 41EXPORT_SYMBOL(__iop13xx_io); 42 43void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size, 44 unsigned int mtype) 45{ 46 void __iomem * retval; 47 48 switch (cookie) { 49 case IOP13XX_PCIX_LOWER_MEM_RA ... IOP13XX_PCIX_UPPER_MEM_RA: 50 if (unlikely(!iop13xx_atux_mem_base)) 51 retval = NULL; 52 else 53 retval = (void *)(iop13xx_atux_mem_base + 54 (cookie - IOP13XX_PCIX_LOWER_MEM_RA)); 55 break; 56 case IOP13XX_PCIE_LOWER_MEM_RA ... IOP13XX_PCIE_UPPER_MEM_RA: 57 if (unlikely(!iop13xx_atue_mem_base)) 58 retval = NULL; 59 else 60 retval = (void *)(iop13xx_atue_mem_base + 61 (cookie - IOP13XX_PCIE_LOWER_MEM_RA)); 62 break; 63 case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA: 64 retval = __arm_ioremap(IOP13XX_PBI_LOWER_MEM_PA + 65 (cookie - IOP13XX_PBI_LOWER_MEM_RA), 66 size, mtype); 67 break; 68 case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA: 69 retval = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(cookie); 70 break; 71 case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA: 72 retval = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(cookie); 73 break; 74 case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA: 75 retval = (void *) IOP13XX_PMMR_PHYS_TO_VIRT(cookie); 76 break; 77 default: 78 retval = __arm_ioremap(cookie, size, mtype); 79 } 80 81 return retval; 82} 83EXPORT_SYMBOL(__iop13xx_ioremap); 84 85void __iop13xx_iounmap(void __iomem *addr) 86{ 87 extern void __iounmap(volatile void __iomem *addr); 88 89 if (iop13xx_atue_mem_base) 90 if (addr >= (void __iomem *) iop13xx_atue_mem_base && 91 addr < (void __iomem *) (iop13xx_atue_mem_base + 92 iop13xx_atue_mem_size)) 93 goto skip; 94 95 if (iop13xx_atux_mem_base) 96 if (addr >= (void __iomem *) iop13xx_atux_mem_base && 97 addr < (void __iomem *) (iop13xx_atux_mem_base + 98 iop13xx_atux_mem_size)) 99 goto skip; 100 101 switch ((u32) addr) { 102 case IOP13XX_PCIE_LOWER_IO_VA ... IOP13XX_PCIE_UPPER_IO_VA: 103 case IOP13XX_PCIX_LOWER_IO_VA ... IOP13XX_PCIX_UPPER_IO_VA: 104 case IOP13XX_PMMR_VIRT_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_VA: 105 goto skip; 106 } 107 __iounmap(addr); 108 109skip: 110 return; 111} 112EXPORT_SYMBOL(__iop13xx_iounmap); 113