[mirror_ubuntu-jammy-kernel.git] / arch / mips / include / asm / mach-tx39xx / ioremap.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 *	include/asm-mips/mach-tx39xx/ioremap.h
 */
#ifndef __ASM_MACH_TX39XX_IOREMAP_H
#define __ASM_MACH_TX39XX_IOREMAP_H

#include <linux/types.h>

/*
 * Allow physical addresses to be fixed up to help peripherals located
 * outside the low 32-bit range -- generic pass-through version.
 */
static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
{
	return phys_addr;
}

static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
	unsigned long flags)
{
#define TXX9_DIRECTMAP_BASE	0xff000000ul
	if (offset >= TXX9_DIRECTMAP_BASE &&
	    offset < TXX9_DIRECTMAP_BASE + 0xff0000)
		return (void __iomem *)offset;
	return NULL;
}

static inline int plat_iounmap(const volatile void __iomem *addr)
{
	return (unsigned long)addr >= TXX9_DIRECTMAP_BASE;
}

#endif /* __ASM_MACH_TX39XX_IOREMAP_H */
Commit	Line	Data
2874c5fd	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
5ddcb3c3	2	/*
4c642f3f	3	* include/asm-mips/mach-tx39xx/ioremap.h
5ddcb3c3	4	*/
4c642f3f AN	5	#ifndef __ASM_MACH_TX39XX_IOREMAP_H
4c642f3f AN	6	#define __ASM_MACH_TX39XX_IOREMAP_H
5ddcb3c3 AN	7
	8	#include <linux/types.h>
	9
	10	/*
	11	* Allow physical addresses to be fixed up to help peripherals located
	12	* outside the low 32-bit range -- generic pass-through version.
	13	*/
15d45cce	14	static inline phys_addr_t fixup_bigphys_addr(phys_addr_t phys_addr, phys_addr_t size)
5ddcb3c3 AN	15	{
	16	return phys_addr;
	17	}
	18
15d45cce	19	static inline void __iomem *plat_ioremap(phys_addr_t offset, unsigned long size,
5ddcb3c3 AN	20	unsigned long flags)
	21	{
	22	#define TXX9_DIRECTMAP_BASE 0xff000000ul
	23	if (offset >= TXX9_DIRECTMAP_BASE &&
308a1639	24	offset < TXX9_DIRECTMAP_BASE + 0xff0000)
5ddcb3c3 AN	25	return (void __iomem *)offset;
	26	return NULL;
	27	}
	28
	29	static inline int plat_iounmap(const volatile void __iomem *addr)
	30	{
	31	return (unsigned long)addr >= TXX9_DIRECTMAP_BASE;
	32	}
	33
4c642f3f	34	#endif /* __ASM_MACH_TX39XX_IOREMAP_H */