Christoph Hellwig d399157283 MIPS: cleanup fixup_bigphys_addr handling
fixup_bigphys_addr is only provided by the alchemy platform.  Remove
all the stubs, and ensure we only call it if it is actually implemented.

Also don't bother implementing io_remap_pfn_range if we don't have to,
and move the remaining implementation to alchemy platform code.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-04-19 16:09:44 +02:00

30 lines
630 B
C

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef __ASM_MACH_BMIPS_IOREMAP_H
#define __ASM_MACH_BMIPS_IOREMAP_H
#include <linux/types.h>
static inline int is_bmips_internal_registers(phys_addr_t offset)
{
if (offset >= 0xfff80000)
return 1;
return 0;
}
static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
unsigned long flags)
{
if (is_bmips_internal_registers(offset))
return (void __iomem *)offset;
return NULL;
}
static inline int plat_iounmap(const volatile void __iomem *addr)
{
return is_bmips_internal_registers((unsigned long)addr);
}
#endif /* __ASM_MACH_BMIPS_IOREMAP_H */