[src/trunk]: src/sys/arch/arm/broadcom Don't pipeline any DMA writes to eMMC.

[mlelstv <mlelstv%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/0600f2a2a13d
branches:  trunk
changeset: 334919:0600f2a2a13d
user:      mlelstv <mlelstv%NetBSD.org@localhost>
date:      Mon Dec 15 08:17:15 2014 +0000

description:
Don't pipeline any DMA writes to eMMC.

Fixes PR/49463.

diffstat:

 sys/arch/arm/broadcom/bcm2835_emmc.c |  6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diffs (34 lines):

diff -r 9b1b4b793b6d -r 0600f2a2a13d sys/arch/arm/broadcom/bcm2835_emmc.c
--- a/sys/arch/arm/broadcom/bcm2835_emmc.c      Mon Dec 15 07:35:09 2014 +0000
+++ b/sys/arch/arm/broadcom/bcm2835_emmc.c      Mon Dec 15 08:17:15 2014 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: bcm2835_emmc.c,v 1.20 2014/11/25 14:30:05 skrll Exp $  */
+/*     $NetBSD: bcm2835_emmc.c,v 1.21 2014/12/15 08:17:15 mlelstv Exp $        */
 
 /*-
  * Copyright (c) 2012 The NetBSD Foundation, Inc.
@@ -30,7 +30,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: bcm2835_emmc.c,v 1.20 2014/11/25 14:30:05 skrll Exp $");
+__KERNEL_RCSID(0, "$NetBSD: bcm2835_emmc.c,v 1.21 2014/12/15 08:17:15 mlelstv Exp $");
 
 #include "bcmdmac.h"
 
@@ -278,6 +278,7 @@
                        if ((sc->sc_cblk[seg].cb_txfr_len & 0xf) == 0)
                                sc->sc_cblk[seg].cb_ti |= DMAC_TI_SRC_WIDTH;
                        sc->sc_cblk[seg].cb_ti |= DMAC_TI_DEST_DREQ;
+                       sc->sc_cblk[seg].cb_ti |= DMAC_TI_WAIT_RESP;
                        sc->sc_cblk[seg].cb_source_ad =
                            cmd->c_dmamap->dm_segs[seg].ds_addr;
                        sc->sc_cblk[seg].cb_dest_ad =
@@ -286,7 +287,6 @@
                }
                sc->sc_cblk[seg].cb_stride = 0;
                if (seg == cmd->c_dmamap->dm_nsegs - 1) {
-                       sc->sc_cblk[seg].cb_ti |= DMAC_TI_WAIT_RESP;
                        sc->sc_cblk[seg].cb_ti |= DMAC_TI_INTEN;
                        sc->sc_cblk[seg].cb_nextconbk = 0;
                } else {