[src/trunk]: src/sys/dev/nand Wait STATUS_RDY after ONFI_RESET.

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

details:   https://anonhg.NetBSD.org/src/rev/a23d29d1be75
branches:  trunk
changeset: 348095:a23d29d1be75
user:      kiyohara <kiyohara%NetBSD.org@localhost>
date:      Tue Oct 04 14:43:55 2016 +0000

description:
Wait STATUS_RDY after ONFI_RESET.

diffstat:

 sys/dev/nand/nand.c |  6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diffs (34 lines):

diff -r 400dc345aae5 -r a23d29d1be75 sys/dev/nand/nand.c
--- a/sys/dev/nand/nand.c       Tue Oct 04 14:36:46 2016 +0000
+++ b/sys/dev/nand/nand.c       Tue Oct 04 14:43:55 2016 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: nand.c,v 1.23 2013/10/20 17:13:18 christos Exp $       */
+/*     $NetBSD: nand.c,v 1.24 2016/10/04 14:43:55 kiyohara Exp $       */
 
 /*-
  * Copyright (c) 2010 Department of Software Engineering,
@@ -34,7 +34,7 @@
 /* Common driver for NAND chips implementing the ONFI 2.2 specification */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: nand.c,v 1.23 2013/10/20 17:13:18 christos Exp $");
+__KERNEL_RCSID(0, "$NetBSD: nand.c,v 1.24 2016/10/04 14:43:55 kiyohara Exp $");
 
 #include "locators.h"
 
@@ -63,6 +63,7 @@
 
 static int nand_search(device_t, cfdata_t, const int *, void *);
 static void nand_address_row(device_t, size_t);
+static inline uint8_t nand_get_status(device_t);
 static void nand_address_column(device_t, size_t, size_t);
 static int nand_fill_chip_structure(device_t, struct nand_chip *);
 static int nand_scan_media(device_t, struct nand_chip *);
@@ -354,6 +355,7 @@
 
        nand_select(self, true);
        nand_command(self, ONFI_RESET);
+       KASSERT(nand_get_status(self) & ONFI_STATUS_RDY);
        nand_select(self, false);
 
        /* check if the device implements the ONFI standard */