1 // SPDX-License-Identifier: GPL-2.0
3 * arch/sh/kernel/iomap.c
5 * Copyright (C) 2000 Niibe Yutaka
6 * Copyright (C) 2005 - 2007 Paul Mundt
8 #include <linux/module.h>
11 unsigned int ioread8(void __iomem
*addr
)
15 EXPORT_SYMBOL(ioread8
);
17 unsigned int ioread16(void __iomem
*addr
)
21 EXPORT_SYMBOL(ioread16
);
23 unsigned int ioread16be(void __iomem
*addr
)
25 return be16_to_cpu(__raw_readw(addr
));
27 EXPORT_SYMBOL(ioread16be
);
29 unsigned int ioread32(void __iomem
*addr
)
33 EXPORT_SYMBOL(ioread32
);
35 unsigned int ioread32be(void __iomem
*addr
)
37 return be32_to_cpu(__raw_readl(addr
));
39 EXPORT_SYMBOL(ioread32be
);
41 void iowrite8(u8 val
, void __iomem
*addr
)
45 EXPORT_SYMBOL(iowrite8
);
47 void iowrite16(u16 val
, void __iomem
*addr
)
51 EXPORT_SYMBOL(iowrite16
);
53 void iowrite16be(u16 val
, void __iomem
*addr
)
55 __raw_writew(cpu_to_be16(val
), addr
);
57 EXPORT_SYMBOL(iowrite16be
);
59 void iowrite32(u32 val
, void __iomem
*addr
)
63 EXPORT_SYMBOL(iowrite32
);
65 void iowrite32be(u32 val
, void __iomem
*addr
)
67 __raw_writel(cpu_to_be32(val
), addr
);
69 EXPORT_SYMBOL(iowrite32be
);
72 * These are the "repeat MMIO read/write" functions.
73 * Note the "__raw" accesses, since we don't want to
74 * convert to CPU byte order. We write in "IO byte
75 * order" (we also don't have IO barriers).
77 static inline void mmio_insb(void __iomem
*addr
, u8
*dst
, int count
)
79 while (--count
>= 0) {
80 u8 data
= __raw_readb(addr
);
86 static inline void mmio_insw(void __iomem
*addr
, u16
*dst
, int count
)
88 while (--count
>= 0) {
89 u16 data
= __raw_readw(addr
);
95 static inline void mmio_insl(void __iomem
*addr
, u32
*dst
, int count
)
97 while (--count
>= 0) {
98 u32 data
= __raw_readl(addr
);
104 static inline void mmio_outsb(void __iomem
*addr
, const u8
*src
, int count
)
106 while (--count
>= 0) {
107 __raw_writeb(*src
, addr
);
112 static inline void mmio_outsw(void __iomem
*addr
, const u16
*src
, int count
)
114 while (--count
>= 0) {
115 __raw_writew(*src
, addr
);
120 static inline void mmio_outsl(void __iomem
*addr
, const u32
*src
, int count
)
122 while (--count
>= 0) {
123 __raw_writel(*src
, addr
);
128 void ioread8_rep(void __iomem
*addr
, void *dst
, unsigned long count
)
130 mmio_insb(addr
, dst
, count
);
132 EXPORT_SYMBOL(ioread8_rep
);
134 void ioread16_rep(void __iomem
*addr
, void *dst
, unsigned long count
)
136 mmio_insw(addr
, dst
, count
);
138 EXPORT_SYMBOL(ioread16_rep
);
140 void ioread32_rep(void __iomem
*addr
, void *dst
, unsigned long count
)
142 mmio_insl(addr
, dst
, count
);
144 EXPORT_SYMBOL(ioread32_rep
);
146 void iowrite8_rep(void __iomem
*addr
, const void *src
, unsigned long count
)
148 mmio_outsb(addr
, src
, count
);
150 EXPORT_SYMBOL(iowrite8_rep
);
152 void iowrite16_rep(void __iomem
*addr
, const void *src
, unsigned long count
)
154 mmio_outsw(addr
, src
, count
);
156 EXPORT_SYMBOL(iowrite16_rep
);
158 void iowrite32_rep(void __iomem
*addr
, const void *src
, unsigned long count
)
160 mmio_outsl(addr
, src
, count
);
162 EXPORT_SYMBOL(iowrite32_rep
);