/* * iop13xx custom ioremap implementation * Copyright (c) 2005-2006, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., 59 Temple * Place - Suite 330, Boston, MA 02111-1307 USA. * */ #include <linux/kernel.h> #include <linux/module.h> #include <linux/io.h> #include <mach/hardware.h> void * __iomem __iop13xx_io(unsigned long io_addr) { void __iomem * io_virt; switch (io_addr) { case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA: io_virt = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(io_addr); break; case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA: io_virt = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(io_addr); break; default: BUG(); } return io_virt; } EXPORT_SYMBOL(__iop13xx_io); void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size, unsigned int mtype) { void __iomem * retval; switch (cookie) { case IOP13XX_PCIX_LOWER_MEM_RA ... IOP13XX_PCIX_UPPER_MEM_RA: if (unlikely(!iop13xx_atux_mem_base)) retval = NULL; else retval = (void *)(iop13xx_atux_mem_base + (cookie - IOP13XX_PCIX_LOWER_MEM_RA)); break; case IOP13XX_PCIE_LOWER_MEM_RA ... IOP13XX_PCIE_UPPER_MEM_RA: if (unlikely(!iop13xx_atue_mem_base)) retval = NULL; else retval = (void *)(iop13xx_atue_mem_base + (cookie - IOP13XX_PCIE_LOWER_MEM_RA)); break; case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA: retval = __arm_ioremap(IOP13XX_PBI_LOWER_MEM_PA + (cookie - IOP13XX_PBI_LOWER_MEM_RA), size, mtype); break; case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA: retval = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(cookie); break; case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA: retval = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(cookie); break; case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA: retval = (void *) IOP13XX_PMMR_PHYS_TO_VIRT(cookie); break; default: retval = __arm_ioremap(cookie, size, mtype); } return retval; } EXPORT_SYMBOL(__iop13xx_ioremap); void __iop13xx_iounmap(void __iomem *addr) { extern void __iounmap(volatile void __iomem *addr); if (iop13xx_atue_mem_base) if (addr >= (void __iomem *) iop13xx_atue_mem_base && addr < (void __iomem *) (iop13xx_atue_mem_base + iop13xx_atue_mem_size)) goto skip; if (iop13xx_atux_mem_base) if (addr >= (void __iomem *) iop13xx_atux_mem_base && addr < (void __iomem *) (iop13xx_atux_mem_base + iop13xx_atux_mem_size)) goto skip; switch ((u32) addr) { case IOP13XX_PCIE_LOWER_IO_VA ... IOP13XX_PCIE_UPPER_IO_VA: case IOP13XX_PCIX_LOWER_IO_VA ... IOP13XX_PCIX_UPPER_IO_VA: case IOP13XX_PMMR_VIRT_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_VA: goto skip; } __iounmap(addr); skip: return; } EXPORT_SYMBOL(__iop13xx_iounmap);