1 files changed, 76 insertions, 0 deletions

diff --git a/include/asm-arm/arch-l7200/io.h b/include/asm-arm/arch-l7200/io.h
new file mode 100644
index 000000000000..fc012a39e2cb
--- /dev/null
+++ b/include/asm-arm/arch-l7200/io.h
@@ -0,0 +1,76 @@
+/*
+ * linux/include/asm-arm/arch-l7200/io.h
+ *
+ * Copyright (C) 2000 Steve Hill (sjhill@cotw.com)
+ *
+ * Changelog:
+ *  03-21-2000  SJH     Created from linux/include/asm-arm/arch-nexuspci/io.h
+ *  08-31-2000  SJH     Added in IO functions necessary for new drivers
+ */
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#include <asm/arch/hardware.h>
+
+#define IO_SPACE_LIMIT 0xffffffff
+
+/*
+ * There are not real ISA nor PCI buses, so we fake it.
+ */
+#define __io_pci(a)             ((void __iomem *)(PCIO_BASE + (a)))
+#define __mem_pci(a)            (a)
+#define __mem_isa(a)            (a)
+
+#define __ioaddr(p)             __io_pci(p)
+
+/*
+ * Generic virtual read/write
+ */
+#define __arch_getb(a)          (*(volatile unsigned char *)(a))
+#define __arch_getl(a)          (*(volatile unsigned int  *)(a))
+
+static inline unsigned int __arch_getw(unsigned long a)
+{
+        unsigned int value;
+        __asm__ __volatile__("ldr%?h    %0, [%1, #0]    @ getw"
+                : "=&r" (value)
+                : "r" (a));
+        return value;
+}
+
+#define __arch_putb(v,a)        (*(volatile unsigned char *)(a) = (v))
+#define __arch_putl(v,a)        (*(volatile unsigned int  *)(a) = (v))
+
+static inline void __arch_putw(unsigned int value, unsigned long a)
+{
+        __asm__ __volatile__("str%?h    %0, [%1, #0]    @ putw"
+                : : "r" (value), "r" (a));
+}
+
+/*
+ * Translated address IO functions
+ *
+ * IO address has already been translated to a virtual address
+ */
+#define outb_t(v,p)             (*(volatile unsigned char *)(p) = (v))
+#define inb_t(p)                (*(volatile unsigned char *)(p))
+#define outw_t(v,p)             (*(volatile unsigned int *)(p) = (v))
+#define inw_t(p)                (*(volatile unsigned int *)(p))
+#define outl_t(v,p)             (*(volatile unsigned long *)(p) = (v))
+#define inl_t(p)                (*(volatile unsigned long *)(p))
+
+/*
+ * FIXME - These are to allow for linking. On all the other
+ *         ARM platforms, the entire IO space is contiguous.
+ *         The 7200 has three separate IO spaces. The below
+ *         macros will eventually become more involved. Use
+ *         with caution and don't be surprised by kernel oopses!!!
+ */
+#define inb(p)                  inb_t(p)
+#define inw(p)                  inw_t(p)
+#define inl(p)                  inl_t(p)
+#define outb(v,p)               outb_t(v,p)
+#define outw(v,p)               outw_t(v,p)
+#define outl(v,p)               outl_t(v,p)
+
+#endif