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/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _M68KNOMMU_IO_H
#define _M68KNOMMU_IO_H
/*
* The non-MMU m68k and ColdFire IO and memory mapped hardware access
* functions have always worked in CPU native endian. We need to define
* that behavior here first before we include asm-generic/io.h.
*/
#define __raw_readb(addr) \
({ unsigned char __v = (*(volatile unsigned char *) (addr)); __v; })
#define __raw_readw(addr) \
({ unsigned short __v = (*(volatile unsigned short *) (addr)); __v; })
#define __raw_readl(addr) \
({ unsigned int __v = (*(volatile unsigned int *) (addr)); __v; })
#define __raw_writeb(b, addr) (void)((*(volatile unsigned char *) (addr)) = (b))
#define __raw_writew(b, addr) (void)((*(volatile unsigned short *) (addr)) = (b))
#define __raw_writel(b, addr) (void)((*(volatile unsigned int *) (addr)) = (b))
#if defined(CONFIG_PCI) && defined(CONFIG_COLDFIRE)
/*
* Support for PCI bus access uses the asm-generic access functions.
* We need to supply the base address and masks for the normal memory
* and IO address space mappings.
*/
#include <asm/byteorder.h>
#include <asm/coldfire.h>
#include <asm/mcfsim.h>
#define PCI_MEM_PA 0xf0000000 /* Host physical address */
#define PCI_MEM_BA 0xf0000000 /* Bus physical address */
#define PCI_MEM_SIZE 0x08000000 /* 128 MB */
#define PCI_MEM_MASK (PCI_MEM_SIZE - 1)
#define PCI_IO_PA 0xf8000000 /* Host physical address */
#define PCI_IO_BA 0x00000000 /* Bus physical address */
#define PCI_IO_SIZE 0x00010000 /* 64k */
#define PCI_IO_MASK (PCI_IO_SIZE - 1)
#define HAVE_ARCH_PIO_SIZE
#define PIO_OFFSET 0
#define PIO_MASK 0xffff
#define PIO_RESERVED 0x10000
#define PCI_IOBASE ((void __iomem *) PCI_IO_PA)
#define PCI_SPACE_LIMIT PCI_IO_MASK
#else
#define readb __raw_readb
#define readw __raw_readw
#define readl __raw_readl
#define writeb __raw_writeb
#define writew __raw_writew
#define writel __raw_writel
#endif /* CONFIG_PCI && CONFIG_COLDFIRE */
/*
* These are defined in kmap.h as static inline functions. To maintain
* previous behavior we put these define guards here so io_mm.h doesn't
* see them.
*/
#ifdef CONFIG_MMU
#define memset_io memset_io
#define memcpy_fromio memcpy_fromio
#define memcpy_toio memcpy_toio
#endif
#include <asm/kmap.h>
#include <asm/virtconvert.h>
#include <asm-generic/io.h>
#endif /* _M68KNOMMU_IO_H */
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