From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from smtp6-g21.free.fr ([2a01:e0c:1:1599::15]) by casper.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1S6gcV-0001jW-DM for barebox@lists.infradead.org; Sun, 11 Mar 2012 11:07:24 +0000 From: Robert Jarzmik Date: Sun, 11 Mar 2012 12:07:06 +0100 Message-Id: <1331464026-11639-1-git-send-email-robert.jarzmik@free.fr> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH] drivers/mtd: improve docg3 write speed To: barebox@lists.infradead.org When programming or erasing a page, don't wait systematically for 3s, but finish the operation as soon as the hardware has finished, and timeout if 3 seconds have passed. Signed-off-by: Robert Jarzmik --- drivers/mtd/devices/docg3.c | 5 +++-- 1 files changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c index 88d707c..7a40908 100644 --- a/drivers/mtd/devices/docg3.c +++ b/drivers/mtd/devices/docg3.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include @@ -780,9 +781,9 @@ static int doc_get_op_status(struct docg3 *docg3) static int doc_write_erase_wait_status(struct docg3 *docg3) { int status, ret = 0; + uint64_t start = get_time_ns(); - if (!doc_is_ready(docg3)) - mdelay(3000); + while (!is_timeout(start, 3000 * MSECOND) && !doc_is_ready(docg3)); if (!doc_is_ready(docg3)) { doc_dbg("Timeout reached and the chip is still not ready\n"); ret = -EAGAIN; -- 1.7.5.4 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox