163 lines
3.2 KiB
C
163 lines
3.2 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* arch/sh/kernel/iomap.c
|
|
*
|
|
* Copyright (C) 2000 Niibe Yutaka
|
|
* Copyright (C) 2005 - 2007 Paul Mundt
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/io.h>
|
|
|
|
unsigned int ioread8(const void __iomem *addr)
|
|
{
|
|
return readb(addr);
|
|
}
|
|
EXPORT_SYMBOL(ioread8);
|
|
|
|
unsigned int ioread16(const void __iomem *addr)
|
|
{
|
|
return readw(addr);
|
|
}
|
|
EXPORT_SYMBOL(ioread16);
|
|
|
|
unsigned int ioread16be(const void __iomem *addr)
|
|
{
|
|
return be16_to_cpu(__raw_readw(addr));
|
|
}
|
|
EXPORT_SYMBOL(ioread16be);
|
|
|
|
unsigned int ioread32(const void __iomem *addr)
|
|
{
|
|
return readl(addr);
|
|
}
|
|
EXPORT_SYMBOL(ioread32);
|
|
|
|
unsigned int ioread32be(const void __iomem *addr)
|
|
{
|
|
return be32_to_cpu(__raw_readl(addr));
|
|
}
|
|
EXPORT_SYMBOL(ioread32be);
|
|
|
|
void iowrite8(u8 val, void __iomem *addr)
|
|
{
|
|
writeb(val, addr);
|
|
}
|
|
EXPORT_SYMBOL(iowrite8);
|
|
|
|
void iowrite16(u16 val, void __iomem *addr)
|
|
{
|
|
writew(val, addr);
|
|
}
|
|
EXPORT_SYMBOL(iowrite16);
|
|
|
|
void iowrite16be(u16 val, void __iomem *addr)
|
|
{
|
|
__raw_writew(cpu_to_be16(val), addr);
|
|
}
|
|
EXPORT_SYMBOL(iowrite16be);
|
|
|
|
void iowrite32(u32 val, void __iomem *addr)
|
|
{
|
|
writel(val, addr);
|
|
}
|
|
EXPORT_SYMBOL(iowrite32);
|
|
|
|
void iowrite32be(u32 val, void __iomem *addr)
|
|
{
|
|
__raw_writel(cpu_to_be32(val), addr);
|
|
}
|
|
EXPORT_SYMBOL(iowrite32be);
|
|
|
|
/*
|
|
* These are the "repeat MMIO read/write" functions.
|
|
* Note the "__raw" accesses, since we don't want to
|
|
* convert to CPU byte order. We write in "IO byte
|
|
* order" (we also don't have IO barriers).
|
|
*/
|
|
static inline void mmio_insb(const void __iomem *addr, u8 *dst, int count)
|
|
{
|
|
while (--count >= 0) {
|
|
u8 data = __raw_readb(addr);
|
|
*dst = data;
|
|
dst++;
|
|
}
|
|
}
|
|
|
|
static inline void mmio_insw(const void __iomem *addr, u16 *dst, int count)
|
|
{
|
|
while (--count >= 0) {
|
|
u16 data = __raw_readw(addr);
|
|
*dst = data;
|
|
dst++;
|
|
}
|
|
}
|
|
|
|
static inline void mmio_insl(const void __iomem *addr, u32 *dst, int count)
|
|
{
|
|
while (--count >= 0) {
|
|
u32 data = __raw_readl(addr);
|
|
*dst = data;
|
|
dst++;
|
|
}
|
|
}
|
|
|
|
static inline void mmio_outsb(void __iomem *addr, const u8 *src, int count)
|
|
{
|
|
while (--count >= 0) {
|
|
__raw_writeb(*src, addr);
|
|
src++;
|
|
}
|
|
}
|
|
|
|
static inline void mmio_outsw(void __iomem *addr, const u16 *src, int count)
|
|
{
|
|
while (--count >= 0) {
|
|
__raw_writew(*src, addr);
|
|
src++;
|
|
}
|
|
}
|
|
|
|
static inline void mmio_outsl(void __iomem *addr, const u32 *src, int count)
|
|
{
|
|
while (--count >= 0) {
|
|
__raw_writel(*src, addr);
|
|
src++;
|
|
}
|
|
}
|
|
|
|
void ioread8_rep(const void __iomem *addr, void *dst, unsigned long count)
|
|
{
|
|
mmio_insb(addr, dst, count);
|
|
}
|
|
EXPORT_SYMBOL(ioread8_rep);
|
|
|
|
void ioread16_rep(const void __iomem *addr, void *dst, unsigned long count)
|
|
{
|
|
mmio_insw(addr, dst, count);
|
|
}
|
|
EXPORT_SYMBOL(ioread16_rep);
|
|
|
|
void ioread32_rep(const void __iomem *addr, void *dst, unsigned long count)
|
|
{
|
|
mmio_insl(addr, dst, count);
|
|
}
|
|
EXPORT_SYMBOL(ioread32_rep);
|
|
|
|
void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
|
|
{
|
|
mmio_outsb(addr, src, count);
|
|
}
|
|
EXPORT_SYMBOL(iowrite8_rep);
|
|
|
|
void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
|
|
{
|
|
mmio_outsw(addr, src, count);
|
|
}
|
|
EXPORT_SYMBOL(iowrite16_rep);
|
|
|
|
void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
|
|
{
|
|
mmio_outsl(addr, src, count);
|
|
}
|
|
EXPORT_SYMBOL(iowrite32_rep);
|