Import of Linux/MIPS 1.3.0

1 files changed, 100 insertions, 0 deletions

diff --git a/include/asm-sparc/io.h b/include/asm-sparc/io.h
new file mode 100644
index 000000000..5aa1a3fac
--- /dev/null
+++ b/include/asm-sparc/io.h
@@ -0,0 +1,100 @@
+#ifndef __SPARC_IO_H
+#define __SPARC_IO_H
+
+#include <asm/page.h>      /* IO address mapping routines need this */
+
+/*
+ * Defines for io operations on the Sparc. Whether a memory access is going
+ * to i/o sparc is encoded in the pte. The type bits determine whether this
+ * is i/o sparc, on board memory, or VME space for VME cards. I think VME
+ * space only works on sun4's
+ */
+
+extern inline unsigned long inb_local(unsigned long addr)
+{
+  return 0;
+}
+
+extern inline void outb_local(unsigned char b, unsigned long addr)
+{
+  return;
+}
+
+extern inline unsigned long inb(unsigned long addr)
+{
+  return 0;
+}
+
+extern inline unsigned long inw(unsigned long addr)
+{
+  return 0;
+}
+
+extern inline unsigned long inl(unsigned long addr)
+{
+  return 0;
+}
+
+extern inline void outb(unsigned char b, unsigned long addr)
+{
+  return;
+}
+
+extern inline void outw(unsigned short b, unsigned long addr)
+{
+  return;
+}
+
+extern inline void outl(unsigned int b, unsigned long addr)
+{
+  return;
+}
+
+/*
+ * Memory functions
+ */
+extern inline unsigned long readb(unsigned long addr)
+{
+  return 0;
+}
+
+extern inline unsigned long readw(unsigned long addr)
+{
+  return 0;
+}
+
+extern inline unsigned long readl(unsigned long addr)
+{
+  return 0;
+}
+
+extern inline void writeb(unsigned short b, unsigned long addr)
+{
+  return;
+}
+
+extern inline void writew(unsigned short b, unsigned long addr)
+{
+  return;
+}
+
+extern inline void writel(unsigned int b, unsigned long addr)
+{
+  return;
+}
+
+#define inb_p inb
+#define outb_p outb
+
+extern inline void mapioaddr(unsigned long physaddr, unsigned long virt_addr)
+{
+  unsigned long page_entry;
+
+  page_entry = physaddr >> PAGE_SHIFT;
+  page_entry |= (PTE_V | PTE_ACC | PTE_NC | PTE_IO);  /* kernel io addr */
+
+  put_pte(virt_addr, page_entry);
+  return;
+}
+
+#endif /* !(__SPARC_IO_H) */