91 lines
2.6 KiB
C
91 lines
2.6 KiB
C
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/*
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* iop13xx custom ioremap implementation
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* Copyright (c) 2005-2006, Intel Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/io.h>
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#include <mach/hardware.h>
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#include "pci.h"
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static void __iomem *__iop13xx_ioremap_caller(phys_addr_t cookie,
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size_t size, unsigned int mtype, void *caller)
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{
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void __iomem * retval;
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switch (cookie) {
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case IOP13XX_PCIX_LOWER_MEM_RA ... IOP13XX_PCIX_UPPER_MEM_RA:
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if (unlikely(!iop13xx_atux_mem_base))
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retval = NULL;
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else
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retval = (iop13xx_atux_mem_base +
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(cookie - IOP13XX_PCIX_LOWER_MEM_RA));
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break;
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case IOP13XX_PCIE_LOWER_MEM_RA ... IOP13XX_PCIE_UPPER_MEM_RA:
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if (unlikely(!iop13xx_atue_mem_base))
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retval = NULL;
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else
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retval = (iop13xx_atue_mem_base +
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(cookie - IOP13XX_PCIE_LOWER_MEM_RA));
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break;
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case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA:
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retval = __arm_ioremap_caller(IOP13XX_PBI_LOWER_MEM_PA +
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(cookie - IOP13XX_PBI_LOWER_MEM_RA),
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size, mtype, __builtin_return_address(0));
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break;
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case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA:
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retval = IOP13XX_PMMR_PHYS_TO_VIRT(cookie);
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break;
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default:
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retval = __arm_ioremap_caller(cookie, size, mtype,
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caller);
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}
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return retval;
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}
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static void __iop13xx_iounmap(volatile void __iomem *addr)
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{
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if (iop13xx_atue_mem_base)
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if (addr >= (void __iomem *) iop13xx_atue_mem_base &&
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addr < (void __iomem *) (iop13xx_atue_mem_base +
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iop13xx_atue_mem_size))
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goto skip;
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if (iop13xx_atux_mem_base)
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if (addr >= (void __iomem *) iop13xx_atux_mem_base &&
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addr < (void __iomem *) (iop13xx_atux_mem_base +
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iop13xx_atux_mem_size))
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goto skip;
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switch ((u32) addr) {
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case (u32)IOP13XX_PMMR_VIRT_MEM_BASE ... (u32)IOP13XX_PMMR_UPPER_MEM_VA:
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goto skip;
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}
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__iounmap(addr);
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skip:
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return;
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}
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void __init iop13xx_init_early(void)
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{
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arch_ioremap_caller = __iop13xx_ioremap_caller;
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arch_iounmap = __iop13xx_iounmap;
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}
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