lsi53c895a boot support

This patch adds support for the lsi53c895a scsi host adapter,
allowing seabios to boot from scsi disks and cdroms connected
to the lsi scsi hba emulated by qemu.

This driver was written by looking at the expectations of qemu's
lsi emulation.  I have no idea idea how close this is to work on
real hardware, and I somehow doubt anyone cares given the age of
physical lsi scsi cards.  It depends on !COREBOOT for that reason.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
diff --git a/src/lsi-scsi.h b/src/lsi-scsi.h
new file mode 100644
index 0000000..9c5a9b2
--- /dev/null
+++ b/src/lsi-scsi.h
@@ -0,0 +1,8 @@
+#ifndef __LSI_SCSI_H
+#define __LSI_SCSI_H
+
+struct disk_op_s;
+int lsi_scsi_cmd_data(struct disk_op_s *op, void *cdbcmd, u16 blocksize);
+void lsi_scsi_setup(void);
+
+#endif /* __LSI_SCSI_H */