-/*
- * SPDX-License-Identifier: GPL-2.0+
- */
+/* SPDX-License-Identifier: GPL-2.0+ */
#ifndef _LINUX_IO_H
#define _LINUX_IO_H
#include <linux/types.h>
#include <asm/io.h>
+#ifndef CONFIG_HAVE_ARCH_IOMAP
+static inline u8 ioread8(const volatile void __iomem *addr)
+{
+ return readb(addr);
+}
+
+static inline u16 ioread16(const volatile void __iomem *addr)
+{
+ return readw(addr);
+}
+
+static inline u32 ioread32(const volatile void __iomem *addr)
+{
+ return readl(addr);
+}
+#endif /* !CONFIG_HAVE_ARCH_IOMAP */
+
+#ifdef CONFIG_64BIT
+static inline u64 ioread64(const volatile void __iomem *addr)
+{
+ return readq(addr);
+}
+#endif /* CONFIG_64BIT */
+
+#ifndef CONFIG_HAVE_ARCH_IOMAP
+static inline void iowrite8(u8 value, volatile void __iomem *addr)
+{
+ writeb(value, addr);
+}
+
+static inline void iowrite16(u16 value, volatile void __iomem *addr)
+{
+ writew(value, addr);
+}
+
+static inline void iowrite32(u32 value, volatile void __iomem *addr)
+{
+ writel(value, addr);
+}
+#endif /* !CONFIG_HAVE_ARCH_IOMAP */
+
+#ifdef CONFIG_64BIT
+static inline void iowrite64(u64 value, volatile void __iomem *addr)
+{
+ writeq(value, addr);
+}
+#endif /* CONFIG_64BIT */
+
#ifndef CONFIG_HAVE_ARCH_IOREMAP
static inline void __iomem *ioremap(resource_size_t offset,
resource_size_t size)
static inline void iounmap(void __iomem *addr)
{
}
+#endif
#define devm_ioremap(dev, offset, size) ioremap(offset, size)
-#endif
#endif /* _LINUX_IO_H */