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| author | John Crispin <blogic@openwrt.org> | 2015-10-05 10:26:34 +0000 |
|---|---|---|
| committer | John Crispin <blogic@openwrt.org> | 2015-10-05 10:26:34 +0000 |
| commit | e0135edefbd85add83920e6d559373185a29db3b (patch) | |
| tree | 927fd679c957d56478eb3d8582bb8f2ffe998804 /target/linux | |
| parent | 49726fd930fd0809f0267b1fb72a1d2f393e9f41 (diff) | |
| download | master-187ad058-e0135edefbd85add83920e6d559373185a29db3b.tar.gz master-187ad058-e0135edefbd85add83920e6d559373185a29db3b.tar.bz2 master-187ad058-e0135edefbd85add83920e6d559373185a29db3b.zip | |
ramips: Enable rx of 1536 bytes ethernet frames on MT7621
The default switch frame size (with FCS + header) is 1536 bytes. But the
GMAC only accepted frames up to 1522 bytes. Setting it to 1536 allows to
receive ethernet frames using the full of MTU 1500 + an extra VLAN header +
VLAN header added by the switch.
Signed-off-by: Sven Eckelmann <sven@open-mesh.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@47117 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/ramips/files/drivers/net/ethernet/ralink/gsw_mt7620a.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/gsw_mt7620a.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/gsw_mt7620a.c index 803970487a..325e2433f1 100644 --- a/target/linux/ramips/files/drivers/net/ethernet/ralink/gsw_mt7620a.c +++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/gsw_mt7620a.c @@ -602,12 +602,12 @@ static void gsw_hw_init_mt7621(struct mt7620_gsw *gsw, struct device_node *np) udelay(10); if ((rt_sysc_r32(SYSC_REG_CHIP_REV_ID) & 0xFFFF) == 0x0101) { - /* (GE1, Force 1000M/FD, FC ON) */ - gsw_w32(gsw, 0x2005e30b, 0x100); + /* (GE1, Force 1000M/FD, FC ON, MAX_RX_LENGTH 1536) */ + gsw_w32(gsw, 0x2105e30b, 0x100); mt7530_mdio_w32(gsw, 0x3600, 0x5e30b); } else { - /* (GE1, Force 1000M/FD, FC ON) */ - gsw_w32(gsw, 0x2005e33b, 0x100); + /* (GE1, Force 1000M/FD, FC ON, MAX_RX_LENGTH 1536) */ + gsw_w32(gsw, 0x2105e33b, 0x100); mt7530_mdio_w32(gsw, 0x3600, 0x5e33b); } |