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authorJohn Crispin <john@phrozen.org>2020-06-04 15:07:28 +0200
committerJohn Crispin <john@phrozen.org>2020-06-07 19:10:51 +0200
commitad39d06df7f6c6af6249c0f33358ae2d799ec4b4 (patch)
treea16dc1b5933acf842ae43f49f18070dce5b331d8 /target
parentf72a2b004c3541b1834fe7af2ae69dcfcde8d338 (diff)
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mediatek: add mt7531 DSA support
Signed-off-by: John Crispin <john@phrozen.org>
Diffstat (limited to 'target')
-rw-r--r--target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64-rootdisk.dts87
-rwxr-xr-xtarget/linux/mediatek/mt7622/base-files/etc/board.d/02_network4
-rwxr-xr-xtarget/linux/mediatek/mt7622/config-5.47
-rw-r--r--target/linux/mediatek/patches-5.4/0600-1-6-net-dsa-mt7530-Refine-message-in-Kconfig.patch100
-rw-r--r--target/linux/mediatek/patches-5.4/0600-2-6-net-dsa-mt7530-Extend-device-data-ready-for-adding-a-new-hardware.patch445
-rw-r--r--target/linux/mediatek/patches-5.4/0600-3-6-dt-bindings-net-dsa-add-new-MT7531-binding-to-support-MT7531.patch181
-rw-r--r--target/linux/mediatek/patches-5.4/0600-4-6-net-dsa-mt7530-Add-the-support-of-MT7531-switch.patch1102
-rw-r--r--target/linux/mediatek/patches-5.4/0600-6-6-arm64-dts-mt7622-add-mt7531-dsa-to-bananapi-bpi-r64-board.patch140
8 files changed, 2028 insertions, 38 deletions
diff --git a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64-rootdisk.dts b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64-rootdisk.dts
index 9d80366a18..6a14ef369b 100644
--- a/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64-rootdisk.dts
+++ b/target/linux/mediatek/files-5.4/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64-rootdisk.dts
@@ -53,13 +53,6 @@
};
};
- gsw: gsw@0 {
- compatible = "mediatek,mt753x";
- mediatek,ethsys = <&ethsys>;
- #address-cells = <1>;
- #size-cells = <0>;
- };
-
leds {
compatible = "gpio-leds";
@@ -150,37 +143,57 @@
mdio: mdio-bus {
#address-cells = <1>;
#size-cells = <0>;
- };
-};
-&gsw {
- mediatek,mdio = <&mdio>;
- mediatek,portmap = "wllll";
- mediatek,mdio_master_pinmux = <0>;
- reset-gpios = <&pio 54 0>;
- interrupt-parent = <&pio>;
- interrupts = <53 IRQ_TYPE_LEVEL_HIGH>;
- status = "okay";
-
- port5: port@5 {
- compatible = "mediatek,mt753x-port";
- reg = <5>;
- phy-mode = "rgmii";
- fixed-link {
- speed = <1000>;
- full-duplex;
- };
- };
-
- port6: port@6 {
- compatible = "mediatek,mt753x-port";
- reg = <6>;
- phy-mode = "sgmii";
- fixed-link {
- speed = <2500>;
- full-duplex;
- };
- };
+ switch@1f {
+ compatible = "mediatek,mt7531";
+ reg = <0x1f>;
+ reset-gpios = <&pio 54 0>;
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ wan: port@0 {
+ reg = <0>;
+ label = "wan";
+ };
+
+ port@1 {
+ reg = <1>;
+ label = "lan0";
+ };
+
+ port@2 {
+ reg = <2>;
+ label = "lan1";
+ };
+
+ port@3 {
+ reg = <3>;
+ label = "lan2";
+ };
+
+ port@4 {
+ reg = <4>;
+ label = "lan3";
+ };
+
+ port@6 {
+ reg = <6>;
+ label = "cpu";
+ ethernet = <&gmac0>;
+ phy-mode = "2500base-x";
+
+ fixed-link {
+ speed = <2500>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+
+ };
};
&i2c1 {
diff --git a/target/linux/mediatek/mt7622/base-files/etc/board.d/02_network b/target/linux/mediatek/mt7622/base-files/etc/board.d/02_network
index b87a24fc2a..eed01a9293 100755
--- a/target/linux/mediatek/mt7622/base-files/etc/board.d/02_network
+++ b/target/linux/mediatek/mt7622/base-files/etc/board.d/02_network
@@ -9,6 +9,10 @@ mediatek_setup_interfaces()
local board="$1"
case $board in
+ bananapi,bpi-r64-rootdisk|\
+ bananapi,bpi-r64)
+ ucidef_set_interfaces_lan_wan "lan0 lan1 lan2 lan3" wan
+ ;;
*)
ucidef_add_switch "switch0" \
"0:lan" "1:lan" "2:lan" "3:lan" "4:wan" "6u@eth0" "5u@eth1"
diff --git a/target/linux/mediatek/mt7622/config-5.4 b/target/linux/mediatek/mt7622/config-5.4
index 040de2fbc0..1a00636968 100755
--- a/target/linux/mediatek/mt7622/config-5.4
+++ b/target/linux/mediatek/mt7622/config-5.4
@@ -393,7 +393,7 @@ CONFIG_MMC_MTK=y
# CONFIG_MMC_TIFM_SD is not set
CONFIG_MODULES_TREE_LOOKUP=y
CONFIG_MODULES_USE_ELF_RELA=y
-CONFIG_MT753X_GSW=y
+# CONFIG_MT753X_GSW is not set
CONFIG_MTD_NAND_CORE=y
CONFIG_MTD_NAND_ECC_SW_HAMMING=y
CONFIG_MTD_NAND_MTK=y
@@ -415,8 +415,13 @@ CONFIG_MTK_TIMER=y
CONFIG_MUTEX_SPIN_ON_OWNER=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_NEED_SG_DMA_LENGTH=y
+CONFIG_NET_DEVLINK=y
+CONFIG_NET_DSA=y
+CONFIG_NET_DSA_MT7530=y
+CONFIG_NET_DSA_TAG_MTK=y
CONFIG_NET_FLOW_LIMIT=y
CONFIG_NET_MEDIATEK_SOC=y
+CONFIG_NET_SWITCHDEV=y
CONFIG_NET_VENDOR_MEDIATEK=y
CONFIG_NLS=y
CONFIG_NO_HZ_COMMON=y
diff --git a/target/linux/mediatek/patches-5.4/0600-1-6-net-dsa-mt7530-Refine-message-in-Kconfig.patch b/target/linux/mediatek/patches-5.4/0600-1-6-net-dsa-mt7530-Refine-message-in-Kconfig.patch
new file mode 100644
index 0000000000..5c56765ecc
--- /dev/null
+++ b/target/linux/mediatek/patches-5.4/0600-1-6-net-dsa-mt7530-Refine-message-in-Kconfig.patch
@@ -0,0 +1,100 @@
+From patchwork Tue Dec 10 08:14:37 2019
+Content-Type: text/plain; charset="utf-8"
+MIME-Version: 1.0
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+X-Patchwork-Submitter: Landen Chao <landen.chao@mediatek.com>
+X-Patchwork-Id: 1206962
+X-Patchwork-Delegate: davem@davemloft.net
+Return-Path: <netdev-owner@vger.kernel.org>
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+ (172.21.101.73) with Microsoft SMTP Server id 15.0.1395.4 via
+ Frontend Transport; Tue, 10 Dec 2019 16:14:26 +0800
+From: Landen Chao <landen.chao@mediatek.com>
+To: <andrew@lunn.ch>, <f.fainelli@gmail.com>,
+ <vivien.didelot@savoirfairelinux.com>, <matthias.bgg@gmail.com>,
+ <robh+dt@kernel.org>, <mark.rutland@arm.com>
+CC: <devicetree@vger.kernel.org>, <netdev@vger.kernel.org>,
+ <linux-kernel@vger.kernel.org>,
+ <linux-mediatek@lists.infradead.org>, <davem@davemloft.net>,
+ <sean.wang@mediatek.com>, <opensource@vdorst.com>,
+ <frank-w@public-files.de>, Landen Chao <landen.chao@mediatek.com>
+Subject: [PATCH net-next 1/6] net: dsa: mt7530: Refine message in Kconfig
+Date: Tue, 10 Dec 2019 16:14:37 +0800
+Message-ID: <6ecf6cbf38223f35854bc361c2eefa1d85c724d2.1575914275.git.landen.chao@mediatek.com>
+X-Mailer: git-send-email 2.18.0
+In-Reply-To: <cover.1575914275.git.landen.chao@mediatek.com>
+References: <cover.1575914275.git.landen.chao@mediatek.com>
+MIME-Version: 1.0
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+Sender: netdev-owner@vger.kernel.org
+Precedence: bulk
+List-ID: <netdev.vger.kernel.org>
+X-Mailing-List: netdev@vger.kernel.org
+
+Refine message in Kconfig with fixing typo and an explicit MT7621 support.
+
+Signed-off-by: Landen Chao <landen.chao@mediatek.com>
+Signed-off-by: Sean Wang <sean.wang@mediatek.com>
+Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
+---
+ drivers/net/dsa/Kconfig | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/drivers/net/dsa/Kconfig b/drivers/net/dsa/Kconfig
+index c7667645f04a..467f80157acf 100644
+--- a/drivers/net/dsa/Kconfig
++++ b/drivers/net/dsa/Kconfig
+@@ -33,12 +33,12 @@ config NET_DSA_LANTIQ_GSWIP
+ the xrx200 / VR9 SoC.
+
+ config NET_DSA_MT7530
+- tristate "Mediatek MT7530 Ethernet switch support"
++ tristate "MediaTek MT7530 and MT7621 Ethernet switch support"
+ depends on NET_DSA
+ select NET_DSA_TAG_MTK
+ ---help---
+- This enables support for the Mediatek MT7530 Ethernet switch
+- chip.
++ This enables support for the MediaTek MT7530 and MT7621 Ethernet
++ switch chip.
+
+ config NET_DSA_MV88E6060
+ tristate "Marvell 88E6060 ethernet switch chip support"
diff --git a/target/linux/mediatek/patches-5.4/0600-2-6-net-dsa-mt7530-Extend-device-data-ready-for-adding-a-new-hardware.patch b/target/linux/mediatek/patches-5.4/0600-2-6-net-dsa-mt7530-Extend-device-data-ready-for-adding-a-new-hardware.patch
new file mode 100644
index 0000000000..637f9e3c58
--- /dev/null
+++ b/target/linux/mediatek/patches-5.4/0600-2-6-net-dsa-mt7530-Extend-device-data-ready-for-adding-a-new-hardware.patch
@@ -0,0 +1,445 @@
+From patchwork Tue Dec 10 08:14:38 2019
+Content-Type: text/plain; charset="utf-8"
+MIME-Version: 1.0
+Content-Transfer-Encoding: 7bit
+X-Patchwork-Submitter: Landen Chao <landen.chao@mediatek.com>
+X-Patchwork-Id: 1206963
+X-Patchwork-Delegate: davem@davemloft.net
+Return-Path: <netdev-owner@vger.kernel.org>
+X-Original-To: patchwork-incoming-netdev@ozlabs.org
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+ Frontend Transport; Tue, 10 Dec 2019 16:14:26 +0800
+From: Landen Chao <landen.chao@mediatek.com>
+To: <andrew@lunn.ch>, <f.fainelli@gmail.com>,
+ <vivien.didelot@savoirfairelinux.com>, <matthias.bgg@gmail.com>,
+ <robh+dt@kernel.org>, <mark.rutland@arm.com>
+CC: <devicetree@vger.kernel.org>, <netdev@vger.kernel.org>,
+ <linux-kernel@vger.kernel.org>,
+ <linux-mediatek@lists.infradead.org>, <davem@davemloft.net>,
+ <sean.wang@mediatek.com>, <opensource@vdorst.com>,
+ <frank-w@public-files.de>, Landen Chao <landen.chao@mediatek.com>
+Subject: [PATCH net-next 2/6] net: dsa: mt7530: Extend device data ready for
+ adding a new hardware
+Date: Tue, 10 Dec 2019 16:14:38 +0800
+Message-ID: <2d546d6bb15ff8b4b75af2220e20db4e634f4145.1575914275.git.landen.chao@mediatek.com>
+X-Mailer: git-send-email 2.18.0
+In-Reply-To: <cover.1575914275.git.landen.chao@mediatek.com>
+References: <cover.1575914275.git.landen.chao@mediatek.com>
+MIME-Version: 1.0
+X-MTK: N
+Sender: netdev-owner@vger.kernel.org
+Precedence: bulk
+List-ID: <netdev.vger.kernel.org>
+X-Mailing-List: netdev@vger.kernel.org
+
+Add a structure holding required operations for each device such as device
+initialization, PHY port read or write, a checker whether PHY interface is
+supported on a certain port, MAC port setup for either bus pad or a
+specific PHY interface.
+
+The patch is done for ready adding a new hardware MT7531.
+
+Signed-off-by: Landen Chao <landen.chao@mediatek.com>
+Signed-off-by: Sean Wang <sean.wang@mediatek.com>
+---
+ drivers/net/dsa/mt7530.c | 231 +++++++++++++++++++++++++++++----------
+ drivers/net/dsa/mt7530.h | 29 ++++-
+ 2 files changed, 203 insertions(+), 57 deletions(-)
+
+Index: linux-5.4.43/drivers/net/dsa/mt7530.c
+===================================================================
+--- linux-5.4.43.orig/drivers/net/dsa/mt7530.c
++++ linux-5.4.43/drivers/net/dsa/mt7530.c
+@@ -373,7 +373,7 @@ mt7530_fdb_write(struct mt7530_priv *pri
+ }
+
+ static int
+-mt7530_pad_clk_setup(struct dsa_switch *ds, int mode)
++mt7530_pad_clk_setup(struct dsa_switch *ds, phy_interface_t mode)
+ {
+ struct mt7530_priv *priv = ds->priv;
+ u32 ncpo1, ssc_delta, trgint, i, xtal;
+@@ -1355,13 +1355,111 @@ mt7530_setup(struct dsa_switch *ds)
+ return 0;
+ }
+
+-static void mt7530_phylink_mac_config(struct dsa_switch *ds, int port,
++static bool mt7530_phy_supported(struct dsa_switch *ds, int port,
++ const struct phylink_link_state *state)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ switch (port) {
++ case 0: /* Internal phy */
++ case 1:
++ case 2:
++ case 3:
++ case 4:
++ if (state->interface != PHY_INTERFACE_MODE_GMII)
++ goto unsupported;
++ break;
++ case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */
++ if (!phy_interface_mode_is_rgmii(state->interface) &&
++ state->interface != PHY_INTERFACE_MODE_MII &&
++ state->interface != PHY_INTERFACE_MODE_GMII)
++ goto unsupported;
++ break;
++ case 6: /* 1st cpu port */
++ if (state->interface != PHY_INTERFACE_MODE_RGMII &&
++ state->interface != PHY_INTERFACE_MODE_TRGMII)
++ goto unsupported;
++ break;
++ default:
++ dev_err(priv->dev, "%s: unsupported port: %i\n", __func__,
++ port);
++ goto unsupported;
++ }
++
++ return true;
++
++unsupported:
++ return false;
++}
++
++static bool mt753x_phy_supported(struct dsa_switch *ds, int port,
++ const struct phylink_link_state *state)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ return priv->info->phy_supported(ds, port, state);
++}
++
++static int
++mt7530_pad_setup(struct dsa_switch *ds, const struct phylink_link_state *state)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ /* Setup TX circuit incluing relevant PAD and driving */
++ mt7530_pad_clk_setup(ds, state->interface);
++
++ if (priv->id == ID_MT7530) {
++ /* Setup RX circuit, relevant PAD and driving on the
++ * host which must be placed after the setup on the
++ * device side is all finished.
++ */
++ mt7623_pad_clk_setup(ds);
++ }
++
++ return 0;
++}
++
++static int
++mt753x_pad_setup(struct dsa_switch *ds, const struct phylink_link_state *state)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ return priv->info->pad_setup(ds, state);
++}
++
++static int
++mt7530_mac_setup(struct dsa_switch *ds, int port, unsigned int mode,
++ const struct phylink_link_state *state)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ /* Only need to setup port5. */
++ if (port != 5)
++ return 0;
++
++ mt7530_setup_port5(priv->ds, state->interface);
++
++ return 0;
++}
++
++static int mt753x_mac_setup(struct dsa_switch *ds, int port, unsigned int mode,
++ const struct phylink_link_state *state)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ return priv->info->mac_setup(ds, port, mode, state);
++}
++
++static void mt753x_phylink_mac_config(struct dsa_switch *ds, int port,
+ unsigned int mode,
+ const struct phylink_link_state *state)
+ {
+ struct mt7530_priv *priv = ds->priv;
+ u32 mcr_cur, mcr_new;
+
++ if (!mt753x_phy_supported(ds, port, state))
++ return;
++
+ switch (port) {
+ case 0: /* Internal phy */
+ case 1:
+@@ -1374,24 +1472,15 @@ static void mt7530_phylink_mac_config(st
+ case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */
+ if (priv->p5_interface == state->interface)
+ break;
+- if (!phy_interface_mode_is_rgmii(state->interface) &&
+- state->interface != PHY_INTERFACE_MODE_MII &&
+- state->interface != PHY_INTERFACE_MODE_GMII)
+- return;
+-
+- mt7530_setup_port5(ds, state->interface);
++ if (mt753x_mac_setup(ds, port, mode, state) < 0)
++ goto unsupported;
+ break;
+ case 6: /* 1st cpu port */
+ if (priv->p6_interface == state->interface)
+ break;
+-
+- if (state->interface != PHY_INTERFACE_MODE_RGMII &&
+- state->interface != PHY_INTERFACE_MODE_TRGMII)
+- return;
+-
+- /* Setup TX circuit incluing relevant PAD and driving */
+- mt7530_pad_clk_setup(ds, state->interface);
+-
++ mt753x_pad_setup(ds, state);
++ if (mt753x_mac_setup(ds, port, mode, state) < 0)
++ goto unsupported;
+ priv->p6_interface = state->interface;
+ break;
+ default:
+@@ -1459,38 +1548,14 @@ static void mt7530_phylink_mac_link_up(s
+ mt7530_port_set_status(priv, port, 1);
+ }
+
+-static void mt7530_phylink_validate(struct dsa_switch *ds, int port,
++static void mt753x_phylink_validate(struct dsa_switch *ds, int port,
+ unsigned long *supported,
+ struct phylink_link_state *state)
+ {
+ __ETHTOOL_DECLARE_LINK_MODE_MASK(mask) = { 0, };
+
+- switch (port) {
+- case 0: /* Internal phy */
+- case 1:
+- case 2:
+- case 3:
+- case 4:
+- if (state->interface != PHY_INTERFACE_MODE_NA &&
+- state->interface != PHY_INTERFACE_MODE_GMII)
+- goto unsupported;
+- break;
+- case 5: /* 2nd cpu port with phy of port 0 or 4 / external phy */
+- if (state->interface != PHY_INTERFACE_MODE_NA &&
+- !phy_interface_mode_is_rgmii(state->interface) &&
+- state->interface != PHY_INTERFACE_MODE_MII &&
+- state->interface != PHY_INTERFACE_MODE_GMII)
+- goto unsupported;
+- break;
+- case 6: /* 1st cpu port */
+- if (state->interface != PHY_INTERFACE_MODE_NA &&
+- state->interface != PHY_INTERFACE_MODE_RGMII &&
+- state->interface != PHY_INTERFACE_MODE_TRGMII)
+- goto unsupported;
+- break;
+- default:
+- dev_err(ds->dev, "%s: unsupported port: %i\n", __func__, port);
+-unsupported:
++ if (state->interface != PHY_INTERFACE_MODE_NA &&
++ !mt753x_phy_supported(ds, port, state)) {
+ linkmode_zero(supported);
+ return;
+ }
+@@ -1609,12 +1674,36 @@ static int mt7530_set_mac_eee(struct dsa
+ return 0;
+ }
+
++static int
++mt753x_setup(struct dsa_switch *ds)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ return priv->info->setup(ds);
++}
++
++static int
++mt753x_phy_read(struct dsa_switch *ds, int port, int regnum)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ return priv->info->phy_read(ds, port, regnum);
++}
++
++static int
++mt753x_phy_write(struct dsa_switch *ds, int port, int regnum, u16 val)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ return priv->info->phy_write(ds, port, regnum, val);
++}
++
+ static const struct dsa_switch_ops mt7530_switch_ops = {
+ .get_tag_protocol = mtk_get_tag_protocol,
+- .setup = mt7530_setup,
++ .setup = mt753x_setup,
+ .get_strings = mt7530_get_strings,
+- .phy_read = mt7530_phy_read,
+- .phy_write = mt7530_phy_write,
++ .phy_read = mt753x_phy_read,
++ .phy_write = mt753x_phy_write,
+ .get_ethtool_stats = mt7530_get_ethtool_stats,
+ .get_sset_count = mt7530_get_sset_count,
+ .port_enable = mt7530_port_enable,
+@@ -1631,18 +1720,39 @@ static const struct dsa_switch_ops mt753
+ .port_vlan_del = mt7530_port_vlan_del,
+ .port_mirror_add = mt7530_port_mirror_add,
+ .port_mirror_del = mt7530_port_mirror_del,
+- .phylink_validate = mt7530_phylink_validate,
++ .phylink_validate = mt753x_phylink_validate,
+ .phylink_mac_link_state = mt7530_phylink_mac_link_state,
+- .phylink_mac_config = mt7530_phylink_mac_config,
++ .phylink_mac_config = mt753x_phylink_mac_config,
+ .phylink_mac_link_down = mt7530_phylink_mac_link_down,
+ .phylink_mac_link_up = mt7530_phylink_mac_link_up,
+ .get_mac_eee = mt7530_get_mac_eee,
+ .set_mac_eee = mt7530_set_mac_eee,
+ };
+
+-static const struct of_device_id mt7530_of_match[] = {
+- { .compatible = "mediatek,mt7621", .data = (void *)ID_MT7621, },
+- { .compatible = "mediatek,mt7530", .data = (void *)ID_MT7530, },
++static const struct mt753x_info mt753x_table[] = {
++ [ID_MT7621] = {
++ .id = ID_MT7621,
++ .setup = mt7530_setup,
++ .phy_read = mt7530_phy_read,
++ .phy_write = mt7530_phy_write,
++ .phy_supported = mt7530_phy_supported,
++ .pad_setup = mt7530_pad_setup,
++ .mac_setup = mt7530_mac_setup,
++ },
++ [ID_MT7530] = {
++ .id = ID_MT7530,
++ .setup = mt7530_setup,
++ .phy_read = mt7530_phy_read,
++ .phy_write = mt7530_phy_write,
++ .phy_supported = mt7530_phy_supported,
++ .pad_setup = mt7530_pad_setup,
++ .mac_setup = mt7530_mac_setup,
++ },
++};
++
++ static const struct of_device_id mt7530_of_match[] = {
++ { .compatible = "mediatek,mt7621", .data = &mt753x_table[ID_MT7621], },
++ { .compatible = "mediatek,mt7530", .data = &mt753x_table[ID_MT7530], },
+ { /* sentinel */ },
+ };
+ MODULE_DEVICE_TABLE(of, mt7530_of_match);
+@@ -1680,8 +1790,19 @@ mt7530_probe(struct mdio_device *mdiodev
+ /* Get the hardware identifier from the devicetree node.
+ * We will need it for some of the clock and regulator setup.
+ */
+- priv->id = (unsigned int)(unsigned long)
+- of_device_get_match_data(&mdiodev->dev);
++ priv->info = of_device_get_match_data(&mdiodev->dev);
++ if (!priv->info)
++ return -EINVAL;
++
++ /* Sanity check if these required device operstaions are filled
++ * properly.
++ */
++ if (!priv->info->setup || !priv->info->phy_read ||
++ !priv->info->phy_write || !priv->info->phy_supported ||
++ !priv->info->pad_setup || !priv->info->mac_setup)
++ return -EINVAL;
++
++ priv->id = priv->info->id;
+
+ if (priv->id == ID_MT7530) {
+ priv->core_pwr = devm_regulator_get(&mdiodev->dev, "core");
+Index: linux-5.4.43/drivers/net/dsa/mt7530.h
+===================================================================
+--- linux-5.4.43.orig/drivers/net/dsa/mt7530.h
++++ linux-5.4.43/drivers/net/dsa/mt7530.h
+@@ -11,7 +11,7 @@
+ #define MT7530_NUM_FDB_RECORDS 2048
+ #define MT7530_ALL_MEMBERS 0xff
+
+-enum {
++enum mt753x_id {
+ ID_MT7530 = 0,
+ ID_MT7621 = 1,
+ };
+@@ -447,6 +447,32 @@ static const char *p5_intf_modes(unsigne
+ }
+ }
+
++/* struct mt753x_info - This is the main data structure for holding the specific
++ * part for each supported device
++ * @setup: Holding the handler to a device initialization
++ * @phy_read: Holding the way reading PHY port
++ * @phy_write: Holding the way writing PHY port
++ * @phy_supported: Check if the PHY type is being supported on a certain
++ * port
++ * @pad_setup: Holding the way setting up the bus pad for a certain MAC
++ * port
++ * @mac_setup: Holding the way setting up the PHY attribute for a
++ * certain MAC port
++ */
++struct mt753x_info {
++ enum mt753x_id id;
++
++ int (*setup)(struct dsa_switch *ds);
++ int (*phy_read)(struct dsa_switch *ds, int port, int regnum);
++ int (*phy_write)(struct dsa_switch *ds, int port, int regnum, u16 val);
++ bool (*phy_supported)(struct dsa_switch *ds, int port,
++ const struct phylink_link_state *state);
++ int (*pad_setup)(struct dsa_switch *ds,
++ const struct phylink_link_state *state);
++ int (*mac_setup)(struct dsa_switch *ds, int port, unsigned int mode,
++ const struct phylink_link_state *state);
++};
++
+ /* struct mt7530_priv - This is the main data structure for holding the state
+ * of the driver
+ * @dev: The device pointer
+@@ -472,6 +498,7 @@ struct mt7530_priv {
+ struct regulator *core_pwr;
+ struct regulator *io_pwr;
+ struct gpio_desc *reset;
++ const struct mt753x_info *info;
+ unsigned int id;
+ bool mcm;
+ phy_interface_t p6_interface;
diff --git a/target/linux/mediatek/patches-5.4/0600-3-6-dt-bindings-net-dsa-add-new-MT7531-binding-to-support-MT7531.patch b/target/linux/mediatek/patches-5.4/0600-3-6-dt-bindings-net-dsa-add-new-MT7531-binding-to-support-MT7531.patch
new file mode 100644
index 0000000000..3ca12b9172
--- /dev/null
+++ b/target/linux/mediatek/patches-5.4/0600-3-6-dt-bindings-net-dsa-add-new-MT7531-binding-to-support-MT7531.patch
@@ -0,0 +1,181 @@
+From patchwork Tue Dec 10 08:14:39 2019
+Content-Type: text/plain; charset="utf-8"
+MIME-Version: 1.0
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+X-Patchwork-Submitter: Landen Chao <landen.chao@mediatek.com>
+X-Patchwork-Id: 1206955
+X-Patchwork-Delegate: davem@davemloft.net
+Return-Path: <netdev-owner@vger.kernel.org>
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+From: Landen Chao <landen.chao@mediatek.com>
+To: <andrew@lunn.ch>, <f.fainelli@gmail.com>,
+ <vivien.didelot@savoirfairelinux.com>, <matthias.bgg@gmail.com>,
+ <robh+dt@kernel.org>, <mark.rutland@arm.com>
+CC: <devicetree@vger.kernel.org>, <netdev@vger.kernel.org>,
+ <linux-kernel@vger.kernel.org>,
+ <linux-mediatek@lists.infradead.org>, <davem@davemloft.net>,
+ <sean.wang@mediatek.com>, <opensource@vdorst.com>,
+ <frank-w@public-files.de>, Landen Chao <landen.chao@mediatek.com>
+Subject: [PATCH net-next 3/6] dt-bindings: net: dsa: add new MT7531 binding
+ to support MT7531
+Date: Tue, 10 Dec 2019 16:14:39 +0800
+Message-ID: <1c382fd916b66bfe3ce8ef18c12f954dbcbddbbc.1575914275.git.landen.chao@mediatek.com>
+X-Mailer: git-send-email 2.18.0
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+
+Add devicetree binding to support the compatible mt7531 switch as used
+in the MediaTek MT7531 switch.
+
+Signed-off-by: Sean Wang <sean.wang@mediatek.com>
+Signed-off-by: Landen Chao <landen.chao@mediatek.com>
+---
+ .../devicetree/bindings/net/dsa/mt7530.txt | 77 ++++++++++++++++++-
+ 1 file changed, 74 insertions(+), 3 deletions(-)
+
+diff --git a/Documentation/devicetree/bindings/net/dsa/mt7530.txt b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
+index c5ed5d25f642..dc226a4e402a 100644
+--- a/Documentation/devicetree/bindings/net/dsa/mt7530.txt
++++ b/Documentation/devicetree/bindings/net/dsa/mt7530.txt
+@@ -5,6 +5,7 @@ Required properties:
+
+ - compatible: may be compatible = "mediatek,mt7530"
+ or compatible = "mediatek,mt7621"
++ or compatible = "mediatek,mt7531"
+ - #address-cells: Must be 1.
+ - #size-cells: Must be 0.
+ - mediatek,mcm: Boolean; if defined, indicates that either MT7530 is the part
+@@ -32,10 +33,13 @@ Required properties for the child nodes within ports container:
+
+ - reg: Port address described must be 6 for CPU port and from 0 to 5 for
+ user ports.
+-- phy-mode: String, must be either "trgmii" or "rgmii" for port labeled
+- "cpu".
++- phy-mode: String, the follow value would be acceptable for port labeled "cpu"
++ If compatible mediatek,mt7530 or mediatek,mt7621 is set,
++ must be either "trgmii" or "rgmii"
++ If compatible mediatek,mt7531 is set,
++ must be either "sgmii", "1000base-x" or "2500base-x"
+
+-Port 5 of the switch is muxed between:
++Port 5 of mt7530 and mt7621 switch is muxed between:
+ 1. GMAC5: GMAC5 can interface with another external MAC or PHY.
+ 2. PHY of port 0 or port 4: PHY interfaces with an external MAC like 2nd GMAC
+ of the SOC. Used in many setups where port 0/4 becomes the WAN port.
+@@ -308,3 +312,70 @@ Example 3: MT7621: Port 5 is connected to external PHY: Port 5 -> external PHY.
+ };
+ };
+ };
++
++Example 4:
++
++&eth {
++ gmac0: mac@0 {
++ compatible = "mediatek,eth-mac";
++ reg = <0>;
++ phy-mode = "2500base-x";
++
++ fixed-link {
++ speed = <1000>;
++ full-duplex;
++ pause;
++ };
++ };
++
++ &mdio0 {
++ switch@0 {
++ compatible = "mediatek,mt7531";
++ reg = <0>;
++ reset-gpios = <&pio 54 0>;
++
++ ports {
++ #address-cells = <1>;
++ #size-cells = <0>;
++ reg = <0>;
++
++ port@0 {
++ reg = <0>;
++ label = "lan0";
++ };
++
++ port@1 {
++ reg = <1>;
++ label = "lan1";
++ };
++
++ port@2 {
++ reg = <2>;
++ label = "lan2";
++ };
++
++ port@3 {
++ reg = <3>;
++ label = "lan3";
++ };
++
++ port@4 {
++ reg = <4>;
++ label = "wan";
++ };
++
++ port@6 {
++ reg = <6>;
++ label = "cpu";
++ ethernet = <&gmac0>;
++ phy-mode = "2500base-x";
++
++ fixed-link {
++ speed = <1000>;
++ full-duplex;
++ pause;
++ };
++ };
++ };
++ };
++ };
diff --git a/target/linux/mediatek/patches-5.4/0600-4-6-net-dsa-mt7530-Add-the-support-of-MT7531-switch.patch b/target/linux/mediatek/patches-5.4/0600-4-6-net-dsa-mt7530-Add-the-support-of-MT7531-switch.patch
new file mode 100644
index 0000000000..a93b802c17
--- /dev/null
+++ b/target/linux/mediatek/patches-5.4/0600-4-6-net-dsa-mt7530-Add-the-support-of-MT7531-switch.patch
@@ -0,0 +1,1102 @@
+From patchwork Tue Dec 10 08:14:40 2019
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+ <linux-mediatek@lists.infradead.org>, <davem@davemloft.net>,
+ <sean.wang@mediatek.com>, <opensource@vdorst.com>,
+ <frank-w@public-files.de>, Landen Chao <landen.chao@mediatek.com>
+Subject: [PATCH net-next 4/6] net: dsa: mt7530: Add the support of MT7531
+ switch
+Date: Tue, 10 Dec 2019 16:14:40 +0800
+Message-ID: <6d608dd024edc90b09ba4fe35417b693847f973c.1575914275.git.landen.chao@mediatek.com>
+X-Mailer: git-send-email 2.18.0
+In-Reply-To: <cover.1575914275.git.landen.chao@mediatek.com>
+References: <cover.1575914275.git.landen.chao@mediatek.com>
+MIME-Version: 1.0
+X-MTK: N
+Sender: netdev-owner@vger.kernel.org
+Precedence: bulk
+List-ID: <netdev.vger.kernel.org>
+X-Mailing-List: netdev@vger.kernel.org
+
+Add new support for MT7531:
+
+MT7531 is the next generation of MT7530. It is also a 7-ports switch with
+5 giga embedded phys, 2 cpu ports, and the same MAC logic of MT7530. Cpu
+port 6 only supports HSGMII interface. Cpu port 5 supports either RGMII
+or HSGMII in different HW sku. Due to HSGMII interface support, pll, and
+pad setting are different from MT7530. This patch adds different initial
+setting of MT7531.
+
+Signed-off-by: Landen Chao <landen.chao@mediatek.com>
+Signed-off-by: Sean Wang <sean.wang@mediatek.com>
+---
+ drivers/net/dsa/Kconfig | 6 +-
+ drivers/net/dsa/mt7530.c | 643 ++++++++++++++++++++++++++++++++++++++-
+ drivers/net/dsa/mt7530.h | 144 +++++++++
+ 3 files changed, 784 insertions(+), 9 deletions(-)
+
+Index: linux-5.4.43/drivers/net/dsa/Kconfig
+===================================================================
+--- linux-5.4.43.orig/drivers/net/dsa/Kconfig
++++ linux-5.4.43/drivers/net/dsa/Kconfig
+@@ -33,12 +33,12 @@ config NET_DSA_LANTIQ_GSWIP
+ the xrx200 / VR9 SoC.
+
+ config NET_DSA_MT7530
+- tristate "MediaTek MT7530 and MT7621 Ethernet switch support"
++ tristate "MediaTek MT753x and MT7621 Ethernet switch support"
+ depends on NET_DSA
+ select NET_DSA_TAG_MTK
+ ---help---
+- This enables support for the MediaTek MT7530 and MT7621 Ethernet
+- switch chip.
++ This enables support for the MediaTek MT7530, MT7531 and MT7621
++ Ethernet switch chip.
+
+ config NET_DSA_MV88E6060
+ tristate "Marvell 88E6060 ethernet switch chip support"
+Index: linux-5.4.43/drivers/net/dsa/mt7530.c
+===================================================================
+--- linux-5.4.43.orig/drivers/net/dsa/mt7530.c
++++ linux-5.4.43/drivers/net/dsa/mt7530.c
+@@ -234,6 +234,12 @@ mt7530_write(struct mt7530_priv *priv, u
+ }
+
+ static u32
++_mt7530_unlocked_read(struct mt7530_dummy_poll *p)
++{
++ return mt7530_mii_read(p->priv, p->reg);
++}
++
++static u32
+ _mt7530_read(struct mt7530_dummy_poll *p)
+ {
+ struct mii_bus *bus = p->priv->bus;
+@@ -287,6 +293,102 @@ mt7530_clear(struct mt7530_priv *priv, u
+ }
+
+ static int
++mt7531_ind_mmd_phy_read(struct mt7530_priv *priv, int port, int devad,
++ int regnum)
++{
++ struct mii_bus *bus = priv->bus;
++ struct mt7530_dummy_poll p;
++ u32 reg, val;
++ int ret;
++
++ INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
++
++ mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
++
++ ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
++ !(val & PHY_ACS_ST), 20, 100000);
++ if (ret < 0) {
++ dev_err(priv->dev, "poll timeout\n");
++ goto out;
++ }
++
++ reg = MDIO_CL45_ADDR | MDIO_PHY_ADDR(port) | MDIO_DEV_ADDR(devad) |
++ regnum;
++ mt7530_mii_write(priv, MT7531_PHY_IAC, reg | PHY_ACS_ST);
++
++ ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
++ !(val & PHY_ACS_ST), 20, 100000);
++ if (ret < 0) {
++ dev_err(priv->dev, "poll timeout\n");
++ goto out;
++ }
++
++ reg = MDIO_CL45_READ | MDIO_PHY_ADDR(port) | MDIO_DEV_ADDR(devad);
++ mt7530_mii_write(priv, MT7531_PHY_IAC, reg | PHY_ACS_ST);
++
++ ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
++ !(val & PHY_ACS_ST), 20, 100000);
++ if (ret < 0) {
++ dev_err(priv->dev, "poll timeout\n");
++ goto out;
++ }
++
++ ret = val & MDIO_RW_DATA_MASK;
++out:
++ mutex_unlock(&bus->mdio_lock);
++
++ return ret;
++}
++
++static int
++mt7531_ind_mmd_phy_write(struct mt7530_priv *priv, int port, int devad,
++ int regnum, u32 data)
++{
++ struct mii_bus *bus = priv->bus;
++ struct mt7530_dummy_poll p;
++ u32 val, reg;
++ int ret;
++
++ INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
++
++ mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
++
++ ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
++ !(val & PHY_ACS_ST), 20, 100000);
++ if (ret < 0) {
++ dev_err(priv->dev, "poll timeout\n");
++ goto out;
++ }
++
++ reg = MDIO_CL45_ADDR | MDIO_PHY_ADDR(port) | MDIO_DEV_ADDR(devad) |
++ regnum;
++ mt7530_mii_write(priv, MT7531_PHY_IAC, reg | PHY_ACS_ST);
++
++ ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
++ !(val & PHY_ACS_ST), 20, 100000);
++ if (ret < 0) {
++ dev_err(priv->dev, "poll timeout\n");
++ goto out;
++ }
++
++ reg = MDIO_CL45_WRITE | MDIO_PHY_ADDR(port) | MDIO_DEV_ADDR(devad) |
++ data;
++ mt7530_mii_write(priv, MT7531_PHY_IAC, reg | PHY_ACS_ST);
++
++ ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
++ !(val & PHY_ACS_ST), 20, 100000);
++ if (ret < 0) {
++ dev_err(priv->dev, "poll timeout\n");
++ goto out;
++ }
++
++out:
++ mutex_unlock(&bus->mdio_lock);
++
++ return ret;
++}
++
++static int
+ mt7530_fdb_cmd(struct mt7530_priv *priv, enum mt7530_fdb_cmd cmd, u32 *rsp)
+ {
+ u32 val;
+@@ -516,6 +618,83 @@ static int mt7530_phy_write(struct dsa_s
+ return mdiobus_write_nested(priv->bus, port, regnum, val);
+ }
+
++static int
++mt7531_ind_phy_read(struct dsa_switch *ds, int port, int regnum)
++{
++ struct mt7530_priv *priv = ds->priv;
++ struct mii_bus *bus = priv->bus;
++ struct mt7530_dummy_poll p;
++ int ret;
++ u32 val;
++
++ INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
++
++ mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
++
++ ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
++ !(val & PHY_ACS_ST), 20, 100000);
++ if (ret < 0) {
++ dev_err(priv->dev, "poll timeout\n");
++ goto out;
++ }
++
++ val = MDIO_CL22_READ | MDIO_PHY_ADDR(port) | MDIO_REG_ADDR(regnum);
++
++ mt7530_mii_write(priv, MT7531_PHY_IAC, val | PHY_ACS_ST);
++
++ ret = readx_poll_timeout(_mt7530_unlocked_read, &p, val,
++ !(val & PHY_ACS_ST), 20, 100000);
++ if (ret < 0) {
++ dev_err(priv->dev, "poll timeout\n");
++ goto out;
++ }
++
++ ret = val & MDIO_RW_DATA_MASK;
++out:
++ mutex_unlock(&bus->mdio_lock);
++
++ return ret;
++}
++
++static int
++mt7531_ind_phy_write(struct dsa_switch *ds, int port, int regnum,
++ u16 data)
++{
++ struct mt7530_priv *priv = ds->priv;
++ struct mii_bus *bus = priv->bus;
++ struct mt7530_dummy_poll p;
++ int ret;
++ u32 reg;
++
++ INIT_MT7530_DUMMY_POLL(&p, priv, MT7531_PHY_IAC);
++
++ mutex_lock_nested(&bus->mdio_lock, MDIO_MUTEX_NESTED);
++
++ ret = readx_poll_timeout(_mt7530_unlocked_read, &p, reg,
++ !(reg & PHY_ACS_ST), 20, 100000);
++ if (ret < 0) {
++ dev_err(priv->dev, "poll timeout\n");
++ goto out;
++ }
++
++ reg = MDIO_CL22_WRITE | MDIO_PHY_ADDR(port) | MDIO_REG_ADDR(regnum) |
++ data;
++
++ mt7530_mii_write(priv, MT7531_PHY_IAC, reg | PHY_ACS_ST);
++
++ ret = readx_poll_timeout(_mt7530_unlocked_read, &p, reg,
++ !(reg & PHY_ACS_ST), 20, 100000);
++ if (ret < 0) {
++ dev_err(priv->dev, "poll timeout\n");
++ goto out;
++ }
++
++out:
++ mutex_unlock(&bus->mdio_lock);
++
++ return ret;
++}
++
+ static void
+ mt7530_get_strings(struct dsa_switch *ds, int port, u32 stringset,
+ uint8_t *data)
+@@ -1355,6 +1534,86 @@ mt7530_setup(struct dsa_switch *ds)
+ return 0;
+ }
+
++static int mt7531_setup(struct dsa_switch *ds)
++{
++ struct mt7530_priv *priv = ds->priv;
++ struct mt7530_dummy_poll p;
++ u32 val, id;
++ int ret, i;
++
++ /* Reset whole chip through gpio pin or memory-mapped registers for
++ * different type of hardware
++ */
++ if (priv->mcm) {
++ reset_control_assert(priv->rstc);
++ usleep_range(1000, 1100);
++ reset_control_deassert(priv->rstc);
++ } else {
++ gpiod_set_value_cansleep(priv->reset, 0);
++ usleep_range(1000, 1100);
++ gpiod_set_value_cansleep(priv->reset, 1);
++ }
++
++ /* Waiting for MT7530 got to stable */
++ INIT_MT7530_DUMMY_POLL(&p, priv, MT7530_HWTRAP);
++ ret = readx_poll_timeout(_mt7530_read, &p, val, val != 0,
++ 20, 1000000);
++ if (ret < 0) {
++ dev_err(priv->dev, "reset timeout\n");
++ return ret;
++ }
++
++ id = mt7530_read(priv, MT7531_CREV);
++ id >>= CHIP_NAME_SHIFT;
++
++ if (id != MT7531_ID) {
++ dev_err(priv->dev, "chip %x can't be supported\n", id);
++ return -ENODEV;
++ }
++
++ /* Reset the switch through internal reset */
++ mt7530_write(priv, MT7530_SYS_CTRL,
++ SYS_CTRL_PHY_RST | SYS_CTRL_SW_RST |
++ SYS_CTRL_REG_RST);
++
++ priv->p6_interface = PHY_INTERFACE_MODE_NA;
++
++ /* Enable PHY power, since phy_device has not yet been created
++ * provided for phy_[read,write]_mmd_indirect is called, we provide
++ * our own mt7531_ind_mmd_phy_[read,write] to complete this
++ * function.
++ */
++ val = mt7531_ind_mmd_phy_read(priv, 0, PHY_DEV1F,
++ MT7531_PHY_DEV1F_REG_403);
++ val |= MT7531_PHY_EN_BYPASS_MODE;
++ val &= ~MT7531_PHY_POWER_OFF;
++ mt7531_ind_mmd_phy_write(priv, 0, PHY_DEV1F,
++ MT7531_PHY_DEV1F_REG_403, val);
++
++ /* Enable and reset MIB counters */
++ mt7530_mib_reset(ds);
++
++ mt7530_clear(priv, MT7530_MFC, UNU_FFP_MASK);
++
++ for (i = 0; i < MT7530_NUM_PORTS; i++) {
++ /* Disable forwarding by default on all ports */
++ mt7530_rmw(priv, MT7530_PCR_P(i), PCR_MATRIX_MASK,
++ PCR_MATRIX_CLR);
++
++ if (dsa_is_cpu_port(ds, i))
++ mt7530_cpu_port_enable(priv, i);
++ else
++ mt7530_port_disable(ds, i);
++ }
++
++ /* Flush the FDB table */
++ ret = mt7530_fdb_cmd(priv, MT7530_FDB_FLUSH, NULL);
++ if (ret < 0)
++ return ret;
++
++ return 0;
++}
++
+ static bool mt7530_phy_supported(struct dsa_switch *ds, int port,
+ const struct phylink_link_state *state)
+ {
+@@ -1392,6 +1651,49 @@ unsupported:
+ return false;
+ }
+
++static bool mt7531_dual_sgmii_supported(struct mt7530_priv *priv)
++{
++ u32 val;
++
++ val = mt7530_read(priv, MT7531_TOP_SIG_SR);
++ return ((val & PAD_DUAL_SGMII_EN) != 0);
++}
++
++static bool mt7531_phy_supported(struct dsa_switch *ds, int port,
++ const struct phylink_link_state *state)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ switch (port) {
++ case 0: /* Internal phy */
++ case 1:
++ case 2:
++ case 3:
++ case 4:
++ if (state->interface != PHY_INTERFACE_MODE_GMII)
++ goto unsupported;
++ break;
++ case 5: /* 2nd cpu port supports either rgmii or sgmii/8023z */
++ if (!mt7531_dual_sgmii_supported(priv))
++ return phy_interface_mode_is_rgmii(state->interface);
++ /* fall through */
++ case 6: /* 1st cpu port supports sgmii/8023z only */
++ if (state->interface != PHY_INTERFACE_MODE_SGMII &&
++ !phy_interface_mode_is_8023z(state->interface))
++ goto unsupported;
++ break;
++ default:
++ dev_err(priv->dev, "%s: unsupported port: %i\n", __func__,
++ port);
++ goto unsupported;
++ }
++
++ return true;
++
++unsupported:
++ return false;
++}
++
+ static bool mt753x_phy_supported(struct dsa_switch *ds, int port,
+ const struct phylink_link_state *state)
+ {
+@@ -1413,7 +1715,144 @@ mt7530_pad_setup(struct dsa_switch *ds,
+ * host which must be placed after the setup on the
+ * device side is all finished.
+ */
+- mt7623_pad_clk_setup(ds);
++ //mt7623_pad_clk_setup(ds);
++ }
++
++ return 0;
++}
++
++static int
++mt7531_pad_setup(struct dsa_switch *ds, const struct phylink_link_state *state)
++{
++ struct mt7530_priv *priv = ds->priv;
++ u32 xtal, val;
++
++ if (mt7531_dual_sgmii_supported(priv))
++ return 0;
++
++ xtal = mt7530_read(priv, MT7531_HWTRAP) & HWTRAP_XTAL_FSEL_MASK;
++
++ switch (xtal) {
++ case HWTRAP_XTAL_FSEL_25MHZ:
++ /* Step 1 : Disable MT7531 COREPLL */
++ val = mt7530_read(priv, MT7531_PLLGP_EN);
++ val &= ~EN_COREPLL;
++ mt7530_write(priv, MT7531_PLLGP_EN, val);
++
++ /* Step 2: switch to XTAL output */
++ val = mt7530_read(priv, MT7531_PLLGP_EN);
++ val |= SW_CLKSW;
++ mt7530_write(priv, MT7531_PLLGP_EN, val);
++
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val &= ~RG_COREPLL_EN;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++
++ /* Step 3: disable PLLGP and enable program PLLGP */
++ val = mt7530_read(priv, MT7531_PLLGP_EN);
++ val |= SW_PLLGP;
++ mt7530_write(priv, MT7531_PLLGP_EN, val);
++
++ /* Step 4: program COREPLL output frequency to 500MHz */
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val &= ~RG_COREPLL_POSDIV_M;
++ val |= 2 << RG_COREPLL_POSDIV_S;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++ usleep_range(25, 35);
++
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val &= ~RG_COREPLL_SDM_PCW_M;
++ val |= 0x140000 << RG_COREPLL_SDM_PCW_S;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++
++ /* Set feedback divide ratio update signal to high */
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val |= RG_COREPLL_SDM_PCW_CHG;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++ /* Wait for at least 16 XTAL clocks */
++ usleep_range(10, 20);
++
++ /* Step 5: set feedback divide ratio update signal to low */
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val &= ~RG_COREPLL_SDM_PCW_CHG;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++
++ /* Enable 325M clock for SGMII */
++ mt7530_write(priv, MT7531_ANA_PLLGP_CR5, 0xad0000);
++
++ /* Enable 250SSC clock for RGMII */
++ mt7530_write(priv, MT7531_ANA_PLLGP_CR2, 0x4f40000);
++
++ /* Step 6: Enable MT7531 PLL */
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val |= RG_COREPLL_EN;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++
++ val = mt7530_read(priv, MT7531_PLLGP_EN);
++ val |= EN_COREPLL;
++ mt7530_write(priv, MT7531_PLLGP_EN, val);
++ usleep_range(25, 35);
++ break;
++ case HWTRAP_XTAL_FSEL_40MHZ:
++ /* Step 1 : Disable MT7531 COREPLL */
++ val = mt7530_read(priv, MT7531_PLLGP_EN);
++ val &= ~EN_COREPLL;
++ mt7530_write(priv, MT7531_PLLGP_EN, val);
++
++ /* Step 2: switch to XTAL output */
++ val = mt7530_read(priv, MT7531_PLLGP_EN);
++ val |= SW_CLKSW;
++ mt7530_write(priv, MT7531_PLLGP_EN, val);
++
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val &= ~RG_COREPLL_EN;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++
++ /* Step 3: disable PLLGP and enable program PLLGP */
++ val = mt7530_read(priv, MT7531_PLLGP_EN);
++ val |= SW_PLLGP;
++ mt7530_write(priv, MT7531_PLLGP_EN, val);
++
++ /* Step 4: program COREPLL output frequency to 500MHz */
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val &= ~RG_COREPLL_POSDIV_M;
++ val |= 2 << RG_COREPLL_POSDIV_S;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++ usleep_range(25, 35);
++
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val &= ~RG_COREPLL_SDM_PCW_M;
++ val |= 0x190000 << RG_COREPLL_SDM_PCW_S;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++
++ /* Set feedback divide ratio update signal to high */
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val |= RG_COREPLL_SDM_PCW_CHG;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++ /* Wait for at least 16 XTAL clocks */
++ usleep_range(10, 20);
++
++ /* Step 5: set feedback divide ratio update signal to low */
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val &= ~RG_COREPLL_SDM_PCW_CHG;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++
++ /* Enable 325M clock for SGMII */
++ mt7530_write(priv, MT7531_ANA_PLLGP_CR5, 0xad0000);
++
++ /* Enable 250SSC clock for RGMII */
++ mt7530_write(priv, MT7531_ANA_PLLGP_CR2, 0x4f40000);
++
++ /* Step 6: Enable MT7531 PLL */
++ val = mt7530_read(priv, MT7531_PLLGP_CR0);
++ val |= RG_COREPLL_EN;
++ mt7530_write(priv, MT7531_PLLGP_CR0, val);
++
++ val = mt7530_read(priv, MT7531_PLLGP_EN);
++ val |= EN_COREPLL;
++ mt7530_write(priv, MT7531_PLLGP_EN, val);
++ usleep_range(25, 35);
++ break;
+ }
+
+ return 0;
+@@ -1442,6 +1881,149 @@ mt7530_mac_setup(struct dsa_switch *ds,
+ return 0;
+ }
+
++static int mt7531_rgmii_setup(struct mt7530_priv *priv, u32 port)
++{
++ u32 val;
++
++ if (port != 5) {
++ dev_err(priv->dev, "RGMII mode is not available for port %d\n",
++ port);
++ return -EINVAL;
++ }
++
++ val = mt7530_read(priv, MT7531_CLKGEN_CTRL);
++ val |= GP_CLK_EN;
++ val &= ~GP_MODE_MASK;
++ val |= GP_MODE(MT7531_GP_MODE_RGMII);
++ val |= TXCLK_NO_REVERSE;
++ val |= RXCLK_NO_DELAY;
++ val &= ~CLK_SKEW_IN_MASK;
++ val |= CLK_SKEW_IN(MT7531_CLK_SKEW_NO_CHG);
++ val &= ~CLK_SKEW_OUT_MASK;
++ val |= CLK_SKEW_OUT(MT7531_CLK_SKEW_NO_CHG);
++ mt7530_write(priv, MT7531_CLKGEN_CTRL, val);
++
++ return 0;
++}
++
++static int mt7531_sgmii_setup_mode_force(struct mt7530_priv *priv, u32 port,
++ const struct phylink_link_state *state)
++{
++ u32 val;
++
++ if (port != 5 && port != 6)
++ return -EINVAL;
++
++ val = mt7530_read(priv, MT7531_QPHY_PWR_STATE_CTRL(port));
++ val |= MT7531_SGMII_PHYA_PWD;
++ mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), val);
++
++ val = mt7530_read(priv, MT7531_PHYA_CTRL_SIGNAL3(port));
++ val &= ~MT7531_RG_TPHY_SPEED_MASK;
++ if (state->interface == PHY_INTERFACE_MODE_2500BASEX)
++ val |= MT7531_RG_TPHY_SPEED_3_125G;
++ mt7530_write(priv, MT7531_PHYA_CTRL_SIGNAL3(port), val);
++
++ val = mt7530_read(priv, MT7531_PCS_CONTROL_1(port));
++ val &= ~MT7531_SGMII_AN_ENABLE;
++ mt7530_write(priv, MT7531_PCS_CONTROL_1(port), val);
++
++ val = mt7530_read(priv, MT7531_SGMII_MODE(port));
++ val &= ~MT7531_SGMII_IF_MODE_MASK;
++
++ switch (state->speed) {
++ case SPEED_10:
++ val |= MT7531_SGMII_FORCE_SPEED_10;
++ break;
++ case SPEED_100:
++ val |= MT7531_SGMII_FORCE_SPEED_100;
++ break;
++ case SPEED_2500:
++ case SPEED_1000:
++ val |= MT7531_SGMII_FORCE_SPEED_1000;
++ break;
++ };
++
++ val &= ~MT7531_SGMII_FORCE_DUPLEX;
++ /* For sgmii force mode, 0 is full duplex and 1 is half duplex */
++ if (state->duplex == DUPLEX_HALF)
++ val |= MT7531_SGMII_FORCE_DUPLEX;
++
++ mt7530_write(priv, MT7531_SGMII_MODE(port), val);
++
++ val = mt7530_read(priv, MT7531_QPHY_PWR_STATE_CTRL(port));
++ val &= ~MT7531_SGMII_PHYA_PWD;
++ mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), val);
++
++ return 0;
++}
++
++static int mt7531_sgmii_setup_mode_an(struct mt7530_priv *priv, int port,
++ const struct phylink_link_state *state)
++{
++ u32 val;
++
++ if (port != 5 && port != 6)
++ return -EINVAL;
++
++ val = mt7530_read(priv, MT7531_QPHY_PWR_STATE_CTRL(port));
++ val |= MT7531_SGMII_PHYA_PWD;
++ mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), val);
++
++ switch (state->speed) {
++ case SPEED_10:
++ case SPEED_100:
++ case SPEED_1000:
++ val = mt7530_read(priv, MT7531_PHYA_CTRL_SIGNAL3(port));
++ val &= ~MT7531_RG_TPHY_SPEED_MASK;
++ mt7530_write(priv, MT7531_PHYA_CTRL_SIGNAL3(port), val);
++ break;
++ default:
++ dev_info(priv->dev, "invalid SGMII speed idx %d for port %d\n",
++ state->speed, port);
++
++ return -EINVAL;
++ }
++
++ val = mt7530_read(priv, MT7531_SGMII_MODE(port));
++ val |= MT7531_SGMII_REMOTE_FAULT_DIS;
++ mt7530_write(priv, MT7531_SGMII_MODE(port), val);
++
++ val = mt7530_read(priv, MT7531_PCS_CONTROL_1(port));
++ val |= MT7531_SGMII_AN_RESTART;
++ mt7530_write(priv, MT7531_PCS_CONTROL_1(port), val);
++
++ val = mt7530_read(priv, MT7531_QPHY_PWR_STATE_CTRL(port));
++ val &= ~MT7531_SGMII_PHYA_PWD;
++ mt7530_write(priv, MT7531_QPHY_PWR_STATE_CTRL(port), val);
++
++ return 0;
++}
++
++static int
++mt7531_mac_setup(struct dsa_switch *ds, int port, unsigned int mode,
++ const struct phylink_link_state *state)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ if (port < 5 || port >= MT7530_NUM_PORTS) {
++ dev_err(priv->dev, "port %d is not a MAC port\n", port);
++ return -EINVAL;
++ }
++
++ switch (state->interface) {
++ case PHY_INTERFACE_MODE_RGMII:
++ return mt7531_rgmii_setup(priv, port);
++ case PHY_INTERFACE_MODE_1000BASEX:
++ case PHY_INTERFACE_MODE_2500BASEX:
++ return mt7531_sgmii_setup_mode_force(priv, port, state);
++ case PHY_INTERFACE_MODE_SGMII:
++ return mt7531_sgmii_setup_mode_an(priv, port, state);
++ default:
++ return -EINVAL;
++ }
++}
++
+ static int mt753x_mac_setup(struct dsa_switch *ds, int port, unsigned int mode,
+ const struct phylink_link_state *state)
+ {
+@@ -1473,22 +2055,23 @@ static void mt753x_phylink_mac_config(st
+ if (priv->p5_interface == state->interface)
+ break;
+ if (mt753x_mac_setup(ds, port, mode, state) < 0)
+- goto unsupported;
++ break;
++ priv->p5_interface = state->interface;
+ break;
+ case 6: /* 1st cpu port */
+ if (priv->p6_interface == state->interface)
+ break;
+ mt753x_pad_setup(ds, state);
+ if (mt753x_mac_setup(ds, port, mode, state) < 0)
+- goto unsupported;
++ break;
+ priv->p6_interface = state->interface;
+ break;
+ default:
+- dev_err(ds->dev, "%s: unsupported port: %i\n", __func__, port);
+ return;
+ }
+
+- if (phylink_autoneg_inband(mode)) {
++ if (phylink_autoneg_inband(mode) &&
++ state->interface != PHY_INTERFACE_MODE_SGMII) {
+ dev_err(ds->dev, "%s: in-band negotiation unsupported\n",
+ __func__);
+ return;
+@@ -1499,13 +2082,15 @@ static void mt753x_phylink_mac_config(st
+ mcr_new &= ~(PMCR_FORCE_SPEED_1000 | PMCR_FORCE_SPEED_100 |
+ PMCR_FORCE_FDX | PMCR_TX_FC_EN | PMCR_RX_FC_EN);
+ mcr_new |= PMCR_IFG_XMIT(1) | PMCR_MAC_MODE | PMCR_BACKOFF_EN |
+- PMCR_BACKPR_EN | PMCR_FORCE_MODE;
++ PMCR_BACKPR_EN | PMCR_FORCE_MODE_ID(priv->id) |
++ PMCR_FORCE_LNK;
+
+ /* Are we connected to external phy */
+ if (port == 5 && dsa_is_user_port(ds, 5))
+ mcr_new |= PMCR_EXT_PHY;
+
+ switch (state->speed) {
++ case SPEED_2500:
+ case SPEED_1000:
+ mcr_new |= PMCR_FORCE_SPEED_1000;
+ if (priv->eee_enable & BIT(port))
+@@ -1529,6 +2114,27 @@ static void mt753x_phylink_mac_config(st
+ mt7530_write(priv, MT7530_PMCR_P(port), mcr_new);
+ }
+
++void mt7531_sgmii_restart_an(struct dsa_switch *ds, int port)
++{
++ struct mt7530_priv *priv = ds->priv;
++ u32 val;
++
++ val = mt7530_read(priv, MT7531_PCS_CONTROL_1(port));
++ val |= MT7531_SGMII_AN_RESTART;
++ mt7530_write(priv, MT7531_PCS_CONTROL_1(port), val);
++}
++
++static void
++mt753x_phylink_mac_an_restart(struct dsa_switch *ds, int port)
++{
++ struct mt7530_priv *priv = ds->priv;
++
++ if (!priv->info->port_an_restart)
++ return;
++
++ priv->info->port_an_restart(ds, port);
++}
++
+ static void mt7530_phylink_mac_link_down(struct dsa_switch *ds, int port,
+ unsigned int mode,
+ phy_interface_t interface)
+@@ -1563,9 +2169,20 @@ static void mt753x_phylink_validate(stru
+ phylink_set_port_modes(mask);
+ phylink_set(mask, Autoneg);
+
+- if (state->interface == PHY_INTERFACE_MODE_TRGMII) {
++ switch (state->interface) {
++ case PHY_INTERFACE_MODE_TRGMII:
+ phylink_set(mask, 1000baseT_Full);
+- } else {
++ break;
++ case PHY_INTERFACE_MODE_1000BASEX:
++ case PHY_INTERFACE_MODE_2500BASEX:
++ phylink_set(mask, 1000baseX_Full);
++ phylink_set(mask, 2500baseX_Full);
++ break;
++ case PHY_INTERFACE_MODE_SGMII:
++ phylink_set(mask, 1000baseT_Full);
++ phylink_set(mask, 1000baseX_Full);
++ /* fall through */
++ default:
+ phylink_set(mask, 10baseT_Half);
+ phylink_set(mask, 10baseT_Full);
+ phylink_set(mask, 100baseT_Half);
+@@ -1577,6 +2194,7 @@ static void mt753x_phylink_validate(stru
+ if (port == 5)
+ phylink_set(mask, 1000baseX_Full);
+ }
++ break;
+ }
+
+ phylink_set(mask, Pause);
+@@ -1721,8 +2339,9 @@ static const struct dsa_switch_ops mt753
+ .port_mirror_add = mt7530_port_mirror_add,
+ .port_mirror_del = mt7530_port_mirror_del,
+ .phylink_validate = mt753x_phylink_validate,
+- .phylink_mac_link_state = mt7530_phylink_mac_link_state,
++ .phylink_mac_link_state = mt7530_phylink_mac_link_state,
+ .phylink_mac_config = mt753x_phylink_mac_config,
++ .phylink_mac_an_restart = mt753x_phylink_mac_an_restart,
+ .phylink_mac_link_down = mt7530_phylink_mac_link_down,
+ .phylink_mac_link_up = mt7530_phylink_mac_link_up,
+ .get_mac_eee = mt7530_get_mac_eee,
+@@ -1748,11 +2367,22 @@ static const struct mt753x_info mt753x_t
+ .pad_setup = mt7530_pad_setup,
+ .mac_setup = mt7530_mac_setup,
+ },
++ [ID_MT7531] = {
++ .id = ID_MT7531,
++ .setup = mt7531_setup,
++ .phy_read = mt7531_ind_phy_read,
++ .phy_write = mt7531_ind_phy_write,
++ .phy_supported = mt7531_phy_supported,
++ .pad_setup = mt7531_pad_setup,
++ .mac_setup = mt7531_mac_setup,
++ .port_an_restart = mt7531_sgmii_restart_an,
++ },
+ };
+
+ static const struct of_device_id mt7530_of_match[] = {
+ { .compatible = "mediatek,mt7621", .data = &mt753x_table[ID_MT7621], },
+ { .compatible = "mediatek,mt7530", .data = &mt753x_table[ID_MT7530], },
++ { .compatible = "mediatek,mt7531", .data = &mt753x_table[ID_MT7531], },
+ { /* sentinel */ },
+ };
+ MODULE_DEVICE_TABLE(of, mt7530_of_match);
+Index: linux-5.4.43/drivers/net/dsa/mt7530.h
+===================================================================
+--- linux-5.4.43.orig/drivers/net/dsa/mt7530.h
++++ linux-5.4.43/drivers/net/dsa/mt7530.h
+@@ -14,6 +14,7 @@
+ enum mt753x_id {
+ ID_MT7530 = 0,
+ ID_MT7621 = 1,
++ ID_MT7531 = 2,
+ };
+
+ #define NUM_TRGMII_CTRL 5
+@@ -222,6 +223,19 @@ enum mt7530_vlan_port_attr {
+ #define PMCR_FORCE_LNK BIT(0)
+ #define PMCR_SPEED_MASK (PMCR_FORCE_SPEED_100 | \
+ PMCR_FORCE_SPEED_1000)
++#define MT7531_FORCE_LNK BIT(31)
++#define MT7531_FORCE_SPD BIT(30)
++#define MT7531_FORCE_DPX BIT(29)
++#define MT7531_FORCE_RX_FC BIT(28)
++#define MT7531_FORCE_TX_FC BIT(27)
++#define MT7531_FORCE_MODE (MT7531_FORCE_LNK | \
++ MT7531_FORCE_SPD | \
++ MT7531_FORCE_DPX | \
++ MT7531_FORCE_RX_FC | \
++ MT7531_FORCE_TX_FC)
++#define PMCR_FORCE_MODE_ID(id) (((id) == ID_MT7531) ? \
++ MT7531_FORCE_MODE : \
++ PMCR_FORCE_MODE)
+
+ #define MT7530_PMSR_P(x) (0x3008 + (x) * 0x100)
+ #define PMSR_EEE1G BIT(7)
+@@ -258,12 +272,111 @@ enum mt7530_vlan_port_attr {
+ CCR_RX_OCT_CNT_BAD | \
+ CCR_TX_OCT_CNT_GOOD | \
+ CCR_TX_OCT_CNT_BAD)
++
++/* SGMII registers */
++#define MT7531_SGMII_REG_BASE 0x5000
++#define MT7531_SGMII_REG(p, r) (MT7531_SGMII_REG_BASE + \
++ ((p) - 5) * 0x1000 + (r))
++
++/* SGMII PCS_CONTROL_1 */
++#define MT7531_PCS_CONTROL_1(p) MT7531_SGMII_REG(p, 0x00)
++#define MT7531_SGMII_LINK_STATUS BIT(18)
++#define MT7531_SGMII_AN_ENABLE BIT(12)
++#define MT7531_SGMII_AN_RESTART BIT(9)
++
++/* Fields of SGMII_MODE */
++#define MT7531_SGMII_MODE(p) MT7531_SGMII_REG(p, 0x20)
++#define MT7531_SGMII_REMOTE_FAULT_DIS BIT(8)
++#define MT7531_SGMII_FORCE_DUPLEX BIT(4)
++#define MT7531_SGMII_IF_MODE_MASK GENMASK(5, 1)
++#define MT7531_SGMII_FORCE_SPEED_10 0x0
++#define MT7531_SGMII_FORCE_SPEED_100 BIT(2)
++#define MT7531_SGMII_FORCE_SPEED_1000 BIT(3)
++
++/* Fields of QPHY_PWR_STATE_CTRL */
++#define MT7531_QPHY_PWR_STATE_CTRL(p) MT7531_SGMII_REG(p, 0xe8)
++#define MT7531_SGMII_PHYA_PWD BIT(4)
++
++/* Values of SGMII SPEED */
++#define MT7531_PHYA_CTRL_SIGNAL3(p) MT7531_SGMII_REG(p, 0x128)
++#define MT7531_RG_TPHY_SPEED_MASK (BIT(2) | BIT(3))
++#define MT7531_RG_TPHY_SPEED_1_25G 0x0
++#define MT7531_RG_TPHY_SPEED_3_125G BIT(2)
++
+ /* Register for system reset */
+ #define MT7530_SYS_CTRL 0x7000
+ #define SYS_CTRL_PHY_RST BIT(2)
+ #define SYS_CTRL_SW_RST BIT(1)
+ #define SYS_CTRL_REG_RST BIT(0)
+
++/* Register for PHY Indirect Access Control */
++#define MT7531_PHY_IAC 0x701C
++#define PHY_ACS_ST BIT(31)
++#define MDIO_REG_ADDR_MASK (0x1f << 25)
++#define MDIO_PHY_ADDR_MASK (0x1f << 20)
++#define MDIO_CMD_MASK (0x3 << 18)
++#define MDIO_ST_MASK (0x3 << 16)
++#define MDIO_RW_DATA_MASK (0xffff)
++#define MDIO_REG_ADDR(x) (((x) & 0x1f) << 25)
++#define MDIO_DEV_ADDR(x) (((x) & 0x1f) << 25)
++#define MDIO_PHY_ADDR(x) (((x) & 0x1f) << 20)
++#define MDIO_CMD(x) (((x) & 0x3) << 18)
++#define MDIO_ST(x) (((x) & 0x3) << 16)
++
++enum mt7531_phy_iac_cmd {
++ MT7531_MDIO_ADDR = 0,
++ MT7531_MDIO_WRITE = 1,
++ MT7531_MDIO_READ = 2,
++ MT7531_MDIO_READ_CL45 = 3,
++};
++
++/* MDIO_ST: MDIO start field */
++enum mt7531_mdio_st {
++ MT7531_MDIO_ST_CL45 = 0,
++ MT7531_MDIO_ST_CL22 = 1,
++};
++
++#define MDIO_CL22_READ (MDIO_ST(MT7531_MDIO_ST_CL22) | \
++ MDIO_CMD(MT7531_MDIO_READ))
++#define MDIO_CL22_WRITE (MDIO_ST(MT7531_MDIO_ST_CL22) | \
++ MDIO_CMD(MT7531_MDIO_WRITE))
++#define MDIO_CL45_ADDR (MDIO_ST(MT7531_MDIO_ST_CL45) | \
++ MDIO_CMD(MT7531_MDIO_ADDR))
++#define MDIO_CL45_READ (MDIO_ST(MT7531_MDIO_ST_CL45) | \
++ MDIO_CMD(MT7531_MDIO_READ))
++#define MDIO_CL45_WRITE (MDIO_ST(MT7531_MDIO_ST_CL45) | \
++ MDIO_CMD(MT7531_MDIO_WRITE))
++
++#define MT7531_CLKGEN_CTRL 0x7500
++#define CLK_SKEW_OUT(x) (((x) & 0x3) << 8)
++#define CLK_SKEW_OUT_MASK (0x3 << 8)
++#define CLK_SKEW_IN(x) (((x) & 0x3) << 6)
++#define CLK_SKEW_IN_MASK (0x3 << 6)
++#define RXCLK_NO_DELAY BIT(5)
++#define TXCLK_NO_REVERSE BIT(4)
++#define GP_MODE(x) (((x) & 0x3) << 1)
++#define GP_MODE_MASK (0x3 << 1)
++#define GP_CLK_EN BIT(0)
++
++#define PHY_DEV1F 0x1f
++#define MT7531_PHY_DEV1F_REG_403 0x403
++
++#define MT7531_PHY_EN_BYPASS_MODE BIT(4)
++#define MT7531_PHY_POWER_OFF BIT(5)
++
++enum mt7531_gp_mode {
++ MT7531_GP_MODE_RGMII = 0,
++ MT7531_GP_MODE_MII = 1,
++ MT7531_GP_MODE_REV_MII = 2
++};
++
++enum mt7531_clk_skew {
++ MT7531_CLK_SKEW_NO_CHG = 0,
++ MT7531_CLK_SKEW_DLY_100PPS = 1,
++ MT7531_CLK_SKEW_DLY_200PPS = 2,
++ MT7531_CLK_SKEW_REVERSE = 3,
++};
++
+ /* Register for hw trap status */
+ #define MT7530_HWTRAP 0x7800
+ #define HWTRAP_XTAL_MASK (BIT(10) | BIT(9))
+@@ -271,6 +384,11 @@ enum mt7530_vlan_port_attr {
+ #define HWTRAP_XTAL_40MHZ (BIT(10))
+ #define HWTRAP_XTAL_20MHZ (BIT(9))
+
++#define MT7531_HWTRAP 0x7800
++#define HWTRAP_XTAL_FSEL_MASK BIT(7)
++#define HWTRAP_XTAL_FSEL_25MHZ BIT(7)
++#define HWTRAP_XTAL_FSEL_40MHZ 0
++
+ /* Register for hw trap modification */
+ #define MT7530_MHWTRAP 0x7804
+ #define MHWTRAP_PHY0_SEL BIT(20)
+@@ -285,14 +403,34 @@ enum mt7530_vlan_port_attr {
+ #define MT7530_TOP_SIG_CTRL 0x7808
+ #define TOP_SIG_CTRL_NORMAL (BIT(17) | BIT(16))
+
++#define MT7531_TOP_SIG_SR 0x780c
++#define PAD_DUAL_SGMII_EN BIT(1)
++
+ #define MT7530_IO_DRV_CR 0x7810
+ #define P5_IO_CLK_DRV(x) ((x) & 0x3)
+ #define P5_IO_DATA_DRV(x) (((x) & 0x3) << 4)
+
++#define MT7531_PLLGP_EN 0x7820
++#define EN_COREPLL BIT(2)
++#define SW_CLKSW BIT(1)
++#define SW_PLLGP BIT(0)
++
++#define MT7531_PLLGP_CR0 0x78a8
++#define RG_COREPLL_EN BIT(22)
++#define RG_COREPLL_POSDIV_S 23
++#define RG_COREPLL_POSDIV_M 0x3800000
++#define RG_COREPLL_SDM_PCW_S 1
++#define RG_COREPLL_SDM_PCW_M 0x3ffffe
++#define RG_COREPLL_SDM_PCW_CHG BIT(0)
++
+ #define MT7530_P6ECR 0x7830
+ #define P6_INTF_MODE_MASK 0x3
+ #define P6_INTF_MODE(x) ((x) & 0x3)
+
++/* RGMII and SGMII PLL clock */
++#define MT7531_ANA_PLLGP_CR2 0x78b0
++#define MT7531_ANA_PLLGP_CR5 0x78bc
++
+ /* Registers for TRGMII on the both side */
+ #define MT7530_TRGMII_RCK_CTRL 0x7a00
+ #define RX_RST BIT(31)
+@@ -335,6 +473,9 @@ enum mt7530_vlan_port_attr {
+ #define CHIP_NAME_SHIFT 16
+ #define MT7530_ID 0x7530
+
++#define MT7531_CREV 0x781C
++#define MT7531_ID 0x7531
++
+ /* Registers for core PLL access through mmd indirect */
+ #define CORE_PLL_GROUP2 0x401
+ #define RG_SYSPLL_EN_NORMAL BIT(15)
+@@ -458,6 +599,8 @@ static const char *p5_intf_modes(unsigne
+ * port
+ * @mac_setup: Holding the way setting up the PHY attribute for a
+ * certain MAC port
++ * @port_an_restart Holding the way restarting 802.3z BaseX autonegotiation
++ * for a certain MAC port
+ */
+ struct mt753x_info {
+ enum mt753x_id id;
+@@ -471,6 +614,7 @@ struct mt753x_info {
+ const struct phylink_link_state *state);
+ int (*mac_setup)(struct dsa_switch *ds, int port, unsigned int mode,
+ const struct phylink_link_state *state);
++ void (*port_an_restart)(struct dsa_switch *ds, int port);
+ };
+
+ /* struct mt7530_priv - This is the main data structure for holding the state
diff --git a/target/linux/mediatek/patches-5.4/0600-6-6-arm64-dts-mt7622-add-mt7531-dsa-to-bananapi-bpi-r64-board.patch b/target/linux/mediatek/patches-5.4/0600-6-6-arm64-dts-mt7622-add-mt7531-dsa-to-bananapi-bpi-r64-board.patch
new file mode 100644
index 0000000000..a4899caee5
--- /dev/null
+++ b/target/linux/mediatek/patches-5.4/0600-6-6-arm64-dts-mt7622-add-mt7531-dsa-to-bananapi-bpi-r64-board.patch
@@ -0,0 +1,140 @@
+From patchwork Tue Dec 10 08:14:42 2019
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+ <robh+dt@kernel.org>, <mark.rutland@arm.com>
+CC: <devicetree@vger.kernel.org>, <netdev@vger.kernel.org>,
+ <linux-kernel@vger.kernel.org>,
+ <linux-mediatek@lists.infradead.org>, <davem@davemloft.net>,
+ <sean.wang@mediatek.com>, <opensource@vdorst.com>,
+ <frank-w@public-files.de>, Landen Chao <landen.chao@mediatek.com>
+Subject: [PATCH net-next 6/6] arm64: dts: mt7622: add mt7531 dsa to
+ bananapi-bpi-r64 board
+Date: Tue, 10 Dec 2019 16:14:42 +0800
+Message-ID: <62eef5503c117f48d4b41e94fd28d75e123590b4.1575914275.git.landen.chao@mediatek.com>
+X-Mailer: git-send-email 2.18.0
+In-Reply-To: <cover.1575914275.git.landen.chao@mediatek.com>
+References: <cover.1575914275.git.landen.chao@mediatek.com>
+MIME-Version: 1.0
+X-MTK: N
+Sender: netdev-owner@vger.kernel.org
+Precedence: bulk
+List-ID: <netdev.vger.kernel.org>
+X-Mailing-List: netdev@vger.kernel.org
+
+Add mt7531 dsa to bananapi-bpi-r64 board for 5 giga Ethernet ports support.
+
+Signed-off-by: Landen Chao <landen.chao@mediatek.com>
+---
+ .../dts/mediatek/mt7622-bananapi-bpi-r64.dts | 50 +++++++++++++++++++
+ 1 file changed, 50 insertions(+)
+
+diff --git a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
+index 83e10591e0e5..ffacefee8e2a 100644
+--- a/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
++++ b/arch/arm64/boot/dts/mediatek/mt7622-bananapi-bpi-r64.dts
+@@ -143,6 +143,56 @@
+ mdio: mdio-bus {
+ #address-cells = <1>;
+ #size-cells = <0>;
++
++ switch@0 {
++ compatible = "mediatek,mt7531";
++ reg = <0>;
++ reset-gpios = <&pio 54 0>;
++
++ ports {
++ #address-cells = <1>;
++ #size-cells = <0>;
++
++ port@0 {
++ reg = <0>;
++ label = "wan";
++ };
++
++ port@1 {
++ reg = <1>;
++ label = "lan0";
++ };
++
++ port@2 {
++ reg = <2>;
++ label = "lan1";
++ };
++
++ port@3 {
++ reg = <3>;
++ label = "lan2";
++ };
++
++ port@4 {
++ reg = <4>;
++ label = "lan3";
++ };
++
++ port@6 {
++ reg = <6>;
++ label = "cpu";
++ ethernet = <&gmac0>;
++ phy-mode = "2500base-x";
++
++ fixed-link {
++ speed = <2500>;
++ full-duplex;
++ pause;
++ };
++ };
++ };
++ };
++
+ };
+ };
+
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