31 lines
625 B
C
31 lines
625 B
C
|
/*
|
||
|
|
* linux/arch/arm/mm/nommu.c
|
||
|
|
*
|
||
|
|
* ARM uCLinux supporting functions.
|
||
|
|
*/
|
||
|
|
#include <linux/module.h>
|
||
|
|
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/page.h>
|
||
|
|
|
||
|
|
void __iomem *__ioremap_pfn(unsigned long pfn, unsigned long offset,
|
||
|
|
size_t size, unsigned long flags)
|
||
|
|
{
|
||
|
|
if (pfn >= (0x100000000ULL >> PAGE_SHIFT))
|
||
|
|
return NULL;
|
||
|
|
return (void __iomem *) (offset + (pfn << PAGE_SHIFT));
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(__ioremap_pfn);
|
||
|
|
|
||
|
|
void __iomem *__ioremap(unsigned long phys_addr, size_t size,
|
||
|
|
unsigned long flags)
|
||
|
|
{
|
||
|
|
return (void __iomem *)phys_addr;
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(__ioremap);
|
||
|
|
|
||
|
|
void __iounmap(void __iomem *addr)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
EXPORT_SYMBOL(__iounmap);
|