1 /* 2 * linux/arch/arm/mm/iomap.c 3 * 4 * Map IO port and PCI memory spaces so that {read,write}[bwl] can 5 * be used to access this memory. 6 */ 7 #include <linux/module.h> 8 #include <linux/pci.h> 9 #include <linux/ioport.h> 10 #include <linux/io.h> 11 12 unsigned long vga_base; 13 EXPORT_SYMBOL(vga_base); 14 15 #ifdef __io ioport_map(unsigned long port,unsigned int nr)16void __iomem *ioport_map(unsigned long port, unsigned int nr) 17 { 18 return __io(port); 19 } 20 EXPORT_SYMBOL(ioport_map); 21 ioport_unmap(void __iomem * addr)22void ioport_unmap(void __iomem *addr) 23 { 24 } 25 EXPORT_SYMBOL(ioport_unmap); 26 #endif 27 28 #ifdef CONFIG_PCI 29 unsigned long pcibios_min_io = 0x1000; 30 EXPORT_SYMBOL(pcibios_min_io); 31 32 unsigned long pcibios_min_mem = 0x01000000; 33 EXPORT_SYMBOL(pcibios_min_mem); 34 pci_iounmap(struct pci_dev * dev,void __iomem * addr)35void pci_iounmap(struct pci_dev *dev, void __iomem *addr) 36 { 37 if ((unsigned long)addr >= VMALLOC_START && 38 (unsigned long)addr < VMALLOC_END) 39 iounmap(addr); 40 } 41 EXPORT_SYMBOL(pci_iounmap); 42 #endif 43