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authorJohn Crispin <john@phrozen.org>2017-06-01 12:29:40 +0200
committerJohn Crispin <john@phrozen.org>2017-06-01 12:30:17 +0200
commit7f9143168faef445effceead08d77ecc7c3e9dc6 (patch)
tree2271c4e239611b7ca9faf488778bd57ab6f57926 /target
parent9bc9457b85beedc718cadea22d5bdf7f807e758f (diff)
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ramips: add jumbo frame support for v4.9
Signed-off-by: John Crispin <john@phrozen.org>
Diffstat (limited to 'target')
-rw-r--r--target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7620.h6
-rw-r--r--target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7621.c9
-rw-r--r--target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/mtk_eth_soc.c22
-rw-r--r--target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/soc_mt7621.c2
4 files changed, 27 insertions, 12 deletions
diff --git a/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7620.h b/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7620.h
index 77dd2ed0b8..ae0b6de024 100644
--- a/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7620.h
+++ b/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7620.h
@@ -47,6 +47,12 @@
#define GSW_REG_ISR 0x700c
#define GSW_REG_GPC1 0x7014
+#define GSW_REG_MAC_P0_MCR 0x100
+#define GSW_REG_MAC_P1_MCR 0x200
+
+// Global MAC control register
+#define GSW_REG_GMACCR 0x30E0
+
#define SYSC_REG_CHIP_REV_ID 0x0c
#define SYSC_REG_CFG1 0x14
#define RST_CTRL_MCM BIT(2)
diff --git a/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7621.c b/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7621.c
index 8e2fbd282d..3adad48c88 100644
--- a/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7621.c
+++ b/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/gsw_mt7621.c
@@ -100,16 +100,19 @@ static void mt7621_hw_init(struct mt7620_gsw *gsw, struct device_node *np)
if ((rt_sysc_r32(SYSC_REG_CHIP_REV_ID) & 0xFFFF) == 0x0101) {
/* (GE1, Force 1000M/FD, FC ON, MAX_RX_LENGTH 1536) */
- mtk_switch_w32(gsw, 0x2105e30b, 0x100);
+ mtk_switch_w32(gsw, 0x2305e30b, GSW_REG_MAC_P0_MCR);
mt7530_mdio_w32(gsw, 0x3600, 0x5e30b);
} else {
/* (GE1, Force 1000M/FD, FC ON, MAX_RX_LENGTH 1536) */
- mtk_switch_w32(gsw, 0x2105e33b, 0x100);
+ mtk_switch_w32(gsw, 0x2305e33b, GSW_REG_MAC_P0_MCR);
mt7530_mdio_w32(gsw, 0x3600, 0x5e33b);
}
/* (GE2, Link down) */
- mtk_switch_w32(gsw, 0x8000, 0x200);
+ mtk_switch_w32(gsw, 0x8000, GSW_REG_MAC_P1_MCR);
+
+ /* Set switch max RX frame length to 2k */
+ mt7530_mdio_w32(gsw, GSW_REG_GMACCR, 0x3F0B);
/* Enable Port 6, P5 as GMAC5, P5 disable */
val = mt7530_mdio_r32(gsw, 0x7804);
diff --git a/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/mtk_eth_soc.c b/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/mtk_eth_soc.c
index 3e8768f63a..5f4afade06 100644
--- a/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/mtk_eth_soc.c
+++ b/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/mtk_eth_soc.c
@@ -1350,6 +1350,10 @@ static int fe_change_mtu(struct net_device *dev, int new_mtu)
if (!(priv->flags & FE_FLAG_JUMBO_FRAME))
return eth_change_mtu(dev, new_mtu);
+ if (IS_ENABLED(CONFIG_SOC_MT7621))
+ if (new_mtu > 2048)
+ return -EINVAL;
+
frag_size = fe_max_frag_size(new_mtu);
if (new_mtu < 68 || frag_size > PAGE_SIZE)
return -EINVAL;
@@ -1373,15 +1377,17 @@ static int fe_change_mtu(struct net_device *dev, int new_mtu)
return 0;
fe_stop(dev);
- fwd_cfg = fe_r32(FE_GDMA1_FWD_CFG);
- if (new_mtu <= ETH_DATA_LEN) {
- fwd_cfg &= ~FE_GDM1_JMB_EN;
- } else {
- fwd_cfg &= ~(FE_GDM1_JMB_LEN_MASK << FE_GDM1_JMB_LEN_SHIFT);
- fwd_cfg |= (DIV_ROUND_UP(frag_size, 1024) <<
- FE_GDM1_JMB_LEN_SHIFT) | FE_GDM1_JMB_EN;
+ if (!IS_ENABLED(CONFIG_SOC_MT7621)) {
+ fwd_cfg = fe_r32(FE_GDMA1_FWD_CFG);
+ if (new_mtu <= ETH_DATA_LEN) {
+ fwd_cfg &= ~FE_GDM1_JMB_EN;
+ } else {
+ fwd_cfg &= ~(FE_GDM1_JMB_LEN_MASK << FE_GDM1_JMB_LEN_SHIFT);
+ fwd_cfg |= (DIV_ROUND_UP(frag_size, 1024) <<
+ FE_GDM1_JMB_LEN_SHIFT) | FE_GDM1_JMB_EN;
+ }
+ fe_w32(fwd_cfg, FE_GDMA1_FWD_CFG);
}
- fe_w32(fwd_cfg, FE_GDMA1_FWD_CFG);
return fe_open(dev);
}
diff --git a/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/soc_mt7621.c b/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/soc_mt7621.c
index 3a8653e5e2..ce41b342e7 100644
--- a/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/soc_mt7621.c
+++ b/target/linux/ramips/files-4.9/drivers/net/ethernet/mtk/soc_mt7621.c
@@ -139,7 +139,7 @@ static void mt7621_init_data(struct fe_soc_data *data,
priv->flags = FE_FLAG_PADDING_64B | FE_FLAG_RX_2B_OFFSET |
FE_FLAG_RX_SG_DMA | FE_FLAG_NAPI_WEIGHT |
- FE_FLAG_HAS_SWITCH;
+ FE_FLAG_HAS_SWITCH | FE_FLAG_JUMBO_FRAME;
netdev->hw_features = NETIF_F_IP_CSUM | NETIF_F_RXCSUM |
NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_SG | NETIF_F_TSO |