[src/trunk]: src/sys/arch/arm/omap TI_AM335X SDHCI does not need SDHC_FLAG_SI...

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

details:   https://anonhg.NetBSD.org/src/rev/a28fac44e45d
branches:  trunk
changeset: 783464:a28fac44e45d
user:      jakllsch <jakllsch%NetBSD.org@localhost>
date:      Sun Dec 23 18:34:01 2012 +0000

description:
TI_AM335X SDHCI does not need SDHC_FLAG_SINGLE_ONLY.  This was
drastically hindering transfer rate performance.

I suspect SDHC_FLAG_SINGLE_ONLY is bogus on most/all other TI-flavored
SDHCI cores as well, but I am unable to confirm.

diffstat:

 sys/arch/arm/omap/omap3_sdhc.c |  5 +++--
 1 files changed, 3 insertions(+), 2 deletions(-)

diffs (26 lines):

diff -r 47cf54f0fc7f -r a28fac44e45d sys/arch/arm/omap/omap3_sdhc.c
--- a/sys/arch/arm/omap/omap3_sdhc.c    Sun Dec 23 18:26:16 2012 +0000
+++ b/sys/arch/arm/omap/omap3_sdhc.c    Sun Dec 23 18:34:01 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: omap3_sdhc.c,v 1.6 2012/12/13 06:43:38 riastradh Exp $ */
+/*     $NetBSD: omap3_sdhc.c,v 1.7 2012/12/23 18:34:01 jakllsch Exp $  */
 /*-
  * Copyright (c) 2011 The NetBSD Foundation, Inc.
  * All rights reserved.
@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: omap3_sdhc.c,v 1.6 2012/12/13 06:43:38 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: omap3_sdhc.c,v 1.7 2012/12/23 18:34:01 jakllsch Exp $");
 
 #include "opt_omap.h"
 
@@ -152,6 +152,7 @@
        sc->sc.sc_flags |= SDHC_FLAG_SINGLE_ONLY;
 #ifdef TI_AM335X
        sc->sc.sc_flags |= SDHC_FLAG_WAIT_RESET;
+       sc->sc.sc_flags &= ~SDHC_FLAG_SINGLE_ONLY;
 #endif
        sc->sc.sc_host = sc->sc_hosts;
        sc->sc.sc_clkbase = 96000;      /* 96MHZ */