1285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams/* 2285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * iop13xx custom ioremap implementation 3285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * Copyright (c) 2005-2006, Intel Corporation. 4285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * 5285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * This program is free software; you can redistribute it and/or modify it 6285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * under the terms and conditions of the GNU General Public License, 7285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * version 2, as published by the Free Software Foundation. 8285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * 9285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * This program is distributed in the hope it will be useful, but WITHOUT 10285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 12285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * more details. 13285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * 14285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * You should have received a copy of the GNU General Public License along with 15285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * this program; if not, write to the Free Software Foundation, Inc., 59 Temple 16285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * Place - Suite 330, Boston, MA 02111-1307 USA. 17285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams * 18285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams */ 19285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams#include <linux/kernel.h> 20285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams#include <linux/module.h> 21fced80c735941fa518ac67c0b61bbe153fb8c050Russell King#include <linux/io.h> 22a09e64fbc0094e3073dbb09c3b4bfe4ab669244bRussell King#include <mach/hardware.h> 23285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams 2417d971e5dceef87bb6fe179a942c8f6191afbab9Rob Herring#include "pci.h" 2517d971e5dceef87bb6fe179a942c8f6191afbab9Rob Herring 269b97173e785a54c5df0aa23d1e1f680f61e36e43Laura Abbottstatic void __iomem *__iop13xx_ioremap_caller(phys_addr_t cookie, 271dfe34ae794c13b11192baac022826f9c53fe377Rob Herring size_t size, unsigned int mtype, void *caller) 28285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams{ 29285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams void __iomem * retval; 30285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams 31285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams switch (cookie) { 32285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams case IOP13XX_PCIX_LOWER_MEM_RA ... IOP13XX_PCIX_UPPER_MEM_RA: 33285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams if (unlikely(!iop13xx_atux_mem_base)) 34285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams retval = NULL; 35285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams else 36abf2ba152f5aa31ee56a63b28b04a76d8def6366Arnd Bergmann retval = (iop13xx_atux_mem_base + 37285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams (cookie - IOP13XX_PCIX_LOWER_MEM_RA)); 38285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams break; 39285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams case IOP13XX_PCIE_LOWER_MEM_RA ... IOP13XX_PCIE_UPPER_MEM_RA: 40285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams if (unlikely(!iop13xx_atue_mem_base)) 41285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams retval = NULL; 42285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams else 43abf2ba152f5aa31ee56a63b28b04a76d8def6366Arnd Bergmann retval = (iop13xx_atue_mem_base + 44285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams (cookie - IOP13XX_PCIE_LOWER_MEM_RA)); 45285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams break; 46285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA: 4731aa8fd6fd30b0f36416df7d09619768d26b4332Russell King retval = __arm_ioremap_caller(IOP13XX_PBI_LOWER_MEM_PA + 483603ab2b62ad8372fc93816b080b370dd55d7cecRussell King (cookie - IOP13XX_PBI_LOWER_MEM_RA), 4931aa8fd6fd30b0f36416df7d09619768d26b4332Russell King size, mtype, __builtin_return_address(0)); 50285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams break; 51285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA: 52abf2ba152f5aa31ee56a63b28b04a76d8def6366Arnd Bergmann retval = IOP13XX_PMMR_PHYS_TO_VIRT(cookie); 53285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams break; 54285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams default: 5531aa8fd6fd30b0f36416df7d09619768d26b4332Russell King retval = __arm_ioremap_caller(cookie, size, mtype, 561dfe34ae794c13b11192baac022826f9c53fe377Rob Herring caller); 57285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams } 58285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams 59285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams return retval; 60285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams} 61285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams 621dfe34ae794c13b11192baac022826f9c53fe377Rob Herringstatic void __iop13xx_iounmap(volatile void __iomem *addr) 63285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams{ 64285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams if (iop13xx_atue_mem_base) 65285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams if (addr >= (void __iomem *) iop13xx_atue_mem_base && 66285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams addr < (void __iomem *) (iop13xx_atue_mem_base + 67285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams iop13xx_atue_mem_size)) 68285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams goto skip; 69285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams 70285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams if (iop13xx_atux_mem_base) 71285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams if (addr >= (void __iomem *) iop13xx_atux_mem_base && 72285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams addr < (void __iomem *) (iop13xx_atux_mem_base + 73285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams iop13xx_atux_mem_size)) 74285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams goto skip; 75285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams 76285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams switch ((u32) addr) { 77abf2ba152f5aa31ee56a63b28b04a76d8def6366Arnd Bergmann case (u32)IOP13XX_PMMR_VIRT_MEM_BASE ... (u32)IOP13XX_PMMR_UPPER_MEM_VA: 78285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams goto skip; 79285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams } 80285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams __iounmap(addr); 81285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams 82285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williamsskip: 83285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams return; 84285f5fa7e9a35e75d9022f9b036ed709721c5cdfDan Williams} 851dfe34ae794c13b11192baac022826f9c53fe377Rob Herring 861dfe34ae794c13b11192baac022826f9c53fe377Rob Herringvoid __init iop13xx_init_early(void) 871dfe34ae794c13b11192baac022826f9c53fe377Rob Herring{ 881dfe34ae794c13b11192baac022826f9c53fe377Rob Herring arch_ioremap_caller = __iop13xx_ioremap_caller; 891dfe34ae794c13b11192baac022826f9c53fe377Rob Herring arch_iounmap = __iop13xx_iounmap; 901dfe34ae794c13b11192baac022826f9c53fe377Rob Herring} 91