From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andrea Greco Subject: [RFC PATCH 2/3] arcnet: com20020: Fixup missing SLOWARB bit Date: Sat, 5 May 2018 23:37:54 +0200 Message-ID: <20180505213754.8400-1-andrea.greco.gapmilano@gmail.com> Cc: Andrea Greco , netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: m.grzeschik@pengutronix.de Return-path: Sender: linux-kernel-owner@vger.kernel.org List-Id: netdev.vger.kernel.org From: Andrea Greco If com20020 clock is major of 40Mhz SLOWARB bit is requested. Signed-off-by: Andrea Greco --- drivers/net/arcnet/com20020.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/arcnet/com20020.c b/drivers/net/arcnet/com20020.c index f09ea77dd6a8..abd32ed8ec9b 100644 --- a/drivers/net/arcnet/com20020.c +++ b/drivers/net/arcnet/com20020.c @@ -102,6 +102,10 @@ int com20020_check(struct net_device *dev) lp->setup = lp->clockm ? 0 : (lp->clockp << 1); lp->setup2 = (lp->clockm << 4) | 8; + // If clock is major of 40Mhz, SLOWARB bit must be set + if (lp->clockm > 1) + lp->setup2 |= SLOWARB; + /* CHECK: should we do this for SOHARD cards ? */ /* Enable P1Mode for backplane mode */ lp->setup = lp->setup | P1MODE; -- 2.14.3