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-rw-r--r--include/asm-sparc/ide_32.h95
1 files changed, 95 insertions, 0 deletions
diff --git a/include/asm-sparc/ide_32.h b/include/asm-sparc/ide_32.h
new file mode 100644
index 000000000000..afd1736ed480
--- /dev/null
+++ b/include/asm-sparc/ide_32.h
@@ -0,0 +1,95 @@
+/* ide.h: SPARC PCI specific IDE glue.
+ *
+ * Copyright (C) 1997 David S. Miller (davem@davemloft.net)
+ * 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 <asm/pgtable.h>
+#include <asm/io.h>
+#include <asm/psr.h>
+
+#undef MAX_HWIFS
+#define MAX_HWIFS 2
+
+#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 */