1 files changed, 100 insertions, 0 deletions

diff --git a/include/asm-sparc/ide.h b/include/asm-sparc/ide.h
new file mode 100644
index 000000000000..64d810385ea4
--- /dev/null
+++ b/include/asm-sparc/ide.h
@@ -0,0 +1,100 @@
+/* $Id: ide.h,v 1.7 2002/01/16 20:58:40 davem Exp $
+ * ide.h: SPARC PCI specific IDE glue.
+ *
+ * Copyright (C) 1997  David S. Miller (davem@caip.rutgers.edu)
+ * Copyright (C) 1998  Eddie C. Dost   (ecd@skynet.be)
+ * Adaptation from sparc64 version to sparc by Pete Zaitcev.
+ */
+
+#ifndef _SPARC_IDE_H
+#define _SPARC_IDE_H
+
+#ifdef __KERNEL__
+
+#include <linux/config.h>
+#include <asm/pgtable.h>
+#include <asm/io.h>
+#include <asm/psr.h>
+
+#undef  MAX_HWIFS
+#define MAX_HWIFS       2
+
+#define IDE_ARCH_OBSOLETE_INIT
+#define ide_default_io_ctl(base)        ((base) + 0x206) /* obsolete */
+
+#define __ide_insl(data_reg, buffer, wcount) \
+        __ide_insw(data_reg, buffer, (wcount)<<1)
+#define __ide_outsl(data_reg, buffer, wcount) \
+        __ide_outsw(data_reg, buffer, (wcount)<<1)
+
+/* On sparc, I/O ports and MMIO registers are accessed identically.  */
+#define __ide_mm_insw   __ide_insw
+#define __ide_mm_insl   __ide_insl
+#define __ide_mm_outsw  __ide_outsw
+#define __ide_mm_outsl  __ide_outsl
+
+static __inline__ void __ide_insw(unsigned long port,
+                                  void *dst,
+                                  unsigned long count)
+{
+        volatile unsigned short *data_port;
+        /* unsigned long end = (unsigned long)dst + (count << 1); */ /* P3 */
+        u16 *ps = dst;
+        u32 *pi;
+
+        data_port = (volatile unsigned short *)port;
+
+        if(((unsigned long)ps) & 0x2) {
+                *ps++ = *data_port;
+                count--;
+        }
+        pi = (u32 *)ps;
+        while(count >= 2) {
+                u32 w;
+
+                w  = (*data_port) << 16;
+                w |= (*data_port);
+                *pi++ = w;
+                count -= 2;
+        }
+        ps = (u16 *)pi;
+        if(count)
+                *ps++ = *data_port;
+
+        /* __flush_dcache_range((unsigned long)dst, end); */ /* P3 see hme */
+}
+
+static __inline__ void __ide_outsw(unsigned long port,
+                                   const void *src,
+                                   unsigned long count)
+{
+        volatile unsigned short *data_port;
+        /* unsigned long end = (unsigned long)src + (count << 1); */
+        const u16 *ps = src;
+        const u32 *pi;
+
+        data_port = (volatile unsigned short *)port;
+
+        if(((unsigned long)src) & 0x2) {
+                *data_port = *ps++;
+                count--;
+        }
+        pi = (const u32 *)ps;
+        while(count >= 2) {
+                u32 w;
+
+                w = *pi++;
+                *data_port = (w >> 16);
+                *data_port = w;
+                count -= 2;
+        }
+        ps = (const u16 *)pi;
+        if(count)
+                *data_port = *ps;
+
+        /* __flush_dcache_range((unsigned long)src, end); */ /* P3 see hme */
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* _SPARC_IDE_H */