From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bryan Wu Subject: [PATCH 2/2] netdev: bfin_mac: enable VLAN support in Blackfin MAC driver Date: Thu, 8 Jan 2009 00:14:39 +0800 Message-ID: <1231344879-26069-3-git-send-email-cooloney@kernel.org> References: <1231344879-26069-1-git-send-email-cooloney@kernel.org> Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Graf Yang , Bryan Wu To: jeff@garzik.org Return-path: Received: from yw-out-2324.google.com ([74.125.46.31]:13011 "EHLO yw-out-2324.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755043AbZAGQOE (ORCPT ); Wed, 7 Jan 2009 11:14:04 -0500 In-Reply-To: <1231344879-26069-1-git-send-email-cooloney@kernel.org> Sender: netdev-owner@vger.kernel.org List-ID: From: Graf Yang Fill EMAC_VLAN1 with 0x8100 to admit 1522 long bytes frames. EMAC_VLAN2 seems need not use for now. Signed-off-by: Graf Yang Signed-off-by: Bryan Wu --- drivers/net/bfin_mac.c | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-) diff --git a/drivers/net/bfin_mac.c b/drivers/net/bfin_mac.c index 78e31aa..15d7e62 100644 --- a/drivers/net/bfin_mac.c +++ b/drivers/net/bfin_mac.c @@ -517,6 +517,14 @@ void setup_system_regs(struct net_device *dev) bfin_write_EMAC_MMC_CTL(RSTC | CROLL); +#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) +#define VLAN_ETHER_TYPE 0x8100 + /* The legal length of the frame is increased to 1522 bytes */ + bfin_write_EMAC_VLAN1(VLAN_ETHER_TYPE); + /* The legal length of the frame is increased to 1538 bytes */ + /*bfin_write_EMAC_VLAN2(VLAN_ETHER_TYPE);*/ +#endif + /* Initialize the TX DMA channel registers */ bfin_write_DMA2_X_COUNT(0); bfin_write_DMA2_X_MODIFY(4); -- 1.5.6