[SCSI] mvsas: add support for 94xx phy tuning and multiple revisions

Add 94xx phy tuning to aid manufacturing.
Add support for 94xx multiple revisions: A0, B0, C0, C1, C2.

Signed-off-by: Xiangliang Yu <yuxiangl@marvell.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c
index 90b6366..9f1cccc 100644
--- a/drivers/scsi/mvsas/mv_init.c
+++ b/drivers/scsi/mvsas/mv_init.c
@@ -569,6 +569,9 @@
 			goto err_out_regions;
 		}
 
+		memset(&mvi->hba_info_param, 0xFF,
+			sizeof(struct hba_info_page));
+
 		mvs_init_sas_add(mvi);
 
 		mvi->instance = nhost;