diff options
Diffstat (limited to 'target/linux/mediatek/patches-4.9/0029-net-next-ethernet-mediatek-add-CDM-able-to-recognize.patch')
| -rw-r--r-- | target/linux/mediatek/patches-4.9/0029-net-next-ethernet-mediatek-add-CDM-able-to-recognize.patch | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/target/linux/mediatek/patches-4.9/0029-net-next-ethernet-mediatek-add-CDM-able-to-recognize.patch b/target/linux/mediatek/patches-4.9/0029-net-next-ethernet-mediatek-add-CDM-able-to-recognize.patch new file mode 100644 index 0000000..5c7e6e4 --- /dev/null +++ b/target/linux/mediatek/patches-4.9/0029-net-next-ethernet-mediatek-add-CDM-able-to-recognize.patch @@ -0,0 +1,48 @@ +From de3c04b820e1d396bf12e88ea87271a84f6fedb7 Mon Sep 17 00:00:00 2001 +From: Sean Wang <sean.wang@mediatek.com> +Date: Wed, 29 Mar 2017 17:38:21 +0800 +Subject: [PATCH 29/57] net-next: ethernet: mediatek: add CDM able to recognize + the tag for DSA + +The patch adds the setup for allowing CDM can recognize these packets with +carrying port-distinguishing tag. Otherwise, these tagging packets will be +handled incorrectly by CDM. The setup is also working out for general +untag packets as well. + +Signed-off-by: Sean Wang <sean.wang@mediatek.com> +Signed-off-by: Landen Chao <Landen.Chao@mediatek.com> +Reviewed-by: Andrew Lunn <andrew@lunn.ch> +Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> +--- + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 6 ++++++ + drivers/net/ethernet/mediatek/mtk_eth_soc.h | 4 ++++ + 2 files changed, 10 insertions(+) + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -1864,6 +1864,12 @@ static int mtk_hw_init(struct mtk_eth *e + val = mtk_r32(eth, MTK_CDMQ_IG_CTRL); + mtk_w32(eth, val | MTK_CDMQ_STAG_EN, MTK_CDMQ_IG_CTRL); + ++ /* Indicates CDM to parse the MTK special tag from CPU ++ * which also is working out for untag packets. ++ */ ++ val = mtk_r32(eth, MTK_CDMQ_IG_CTRL); ++ mtk_w32(eth, val | MTK_CDMQ_STAG_EN, MTK_CDMQ_IG_CTRL); ++ + /* Enable RX VLan Offloading */ + mtk_w32(eth, 1, MTK_CDMP_EG_CTRL); + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h +@@ -74,6 +74,10 @@ + #define MTK_CDMQ_IG_CTRL 0x1400 + #define MTK_CDMQ_STAG_EN BIT(0) + ++/* CDMP Ingress Control Register */ ++#define MTK_CDMQ_IG_CTRL 0x1400 ++#define MTK_CDMQ_STAG_EN BIT(0) ++ + /* CDMP Exgress Control Register */ + #define MTK_CDMP_EG_CTRL 0x404 + |