Title: [5935] trunk/drivers/net/bfin_mac.c: Fill EMAC_VLAN1 with 0x8100 to admit 1522 long bytes frames.
- Revision
- 5935
- Author
- gyang
- Date
- 2008-12-31 02:16:22 -0600 (Wed, 31 Dec 2008)
Log Message
Fill EMAC_VLAN1 with 0x8100 to admit 1522 long bytes frames. EMAC_VLAN2 seems need not use for now.
Modified Paths
Diff
Modified: trunk/drivers/net/bfin_mac.c (5934 => 5935)
--- trunk/drivers/net/bfin_mac.c 2008-12-31 08:08:04 UTC (rev 5934)
+++ trunk/drivers/net/bfin_mac.c 2008-12-31 08:16:22 UTC (rev 5935)
@@ -517,6 +517,14 @@
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);
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