Author: manu
Date: Sat May 12 13:12:59 2018
New Revision: 333554
URL: https://svnweb.freebsd.org/changeset/base/333554
Log:
aw_mmc: Remove hardware reset
From all the BSP (Board Source Package) source that I've looked at it seems
that it's never done, remove it.
Tested On: A31, A64
Modified:
head/sys/arm/allwinner/aw_mmc.c
Modified: head/sys/arm/allwinner/aw_mmc.c
==============================================================================
--- head/sys/arm/allwinner/aw_mmc.c Sat May 12 13:12:26 2018
(r333553)
+++ head/sys/arm/allwinner/aw_mmc.c Sat May 12 13:12:59 2018
(r333554)
@@ -246,12 +246,6 @@ aw_mmc_attach(device_t dev)
SYSCTL_ADD_INT(ctx, tree, OID_AUTO, "req_timeout", CTLFLAG_RW,
&sc->aw_timeout, 0, "Request timeout in seconds");
- /* Hardware reset */
- AW_MMC_WRITE_4(sc, AW_MMC_HWRST, 1);
- DELAY(100);
- AW_MMC_WRITE_4(sc, AW_MMC_HWRST, 0);
- DELAY(500);
-
/* Soft Reset controller. */
if (aw_mmc_reset(sc) != 0) {
device_printf(dev, "cannot reset the controller\n");
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