From 92820cc5b995251e7eefe59dc586283a565f7c18 Mon Sep 17 00:00:00 2001 From: Daniel Golle Date: Mon, 27 Dec 2021 20:08:04 +0000 Subject: mediatek: yet again, replace patch with updated pending patch Upon comment of Russell King ('Oh no, not this "-1 disease" again.') clean up mdio read and write return type and value in mtk_eth_soc driver and also use appropriate return values for bus-busy-timeout- errors in newly added Clause 45 access code. Signed-off-by: Daniel Golle --- ...-mtk_eth_soc-fix-return-value-of-MDIO-ops.patch | 97 ++++++++++++ ...k_eth_soc-implement-Clause-45-MDIO-access.patch | 166 --------------------- ...k_eth_soc-implement-Clause-45-MDIO-access.patch | 157 +++++++++++++++++++ 3 files changed, 254 insertions(+), 166 deletions(-) create mode 100644 target/linux/mediatek/patches-5.10/701-net-ethernet-mtk_eth_soc-fix-return-value-of-MDIO-ops.patch delete mode 100644 target/linux/mediatek/patches-5.10/701-net-ethernet-mtk_eth_soc-implement-Clause-45-MDIO-access.patch create mode 100644 target/linux/mediatek/patches-5.10/702-net-ethernet-mtk_eth_soc-implement-Clause-45-MDIO-access.patch (limited to 'target') diff --git a/target/linux/mediatek/patches-5.10/701-net-ethernet-mtk_eth_soc-fix-return-value-of-MDIO-ops.patch b/target/linux/mediatek/patches-5.10/701-net-ethernet-mtk_eth_soc-fix-return-value-of-MDIO-ops.patch new file mode 100644 index 0000000000..696b68df47 --- /dev/null +++ b/target/linux/mediatek/patches-5.10/701-net-ethernet-mtk_eth_soc-fix-return-value-of-MDIO-ops.patch @@ -0,0 +1,97 @@ +From patchwork Mon Dec 27 18:31:09 2021 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +X-Patchwork-Submitter: Daniel Golle +X-Patchwork-Id: 12699993 +X-Patchwork-Delegate: kuba@kernel.org +Return-Path: +Date: Mon, 27 Dec 2021 18:31:09 +0000 +From: Daniel Golle +To: linux-mediatek@lists.infradead.org, netdev@vger.kernel.org, + linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org +Cc: Felix Fietkau , John Crispin , + Sean Wang , + Mark Lee , + "David S. Miller" , + Jakub Kicinski , + Matthias Brugger , + Russell King , + Andrew Lunn +Subject: [PATCH v5 1/2] net: ethernet: mtk_eth_soc: fix return value of MDIO + ops +Message-ID: +References: + +MIME-Version: 1.0 +Content-Disposition: inline +In-Reply-To: + +Precedence: bulk +List-ID: +X-Mailing-List: netdev@vger.kernel.org +X-Patchwork-Delegate: kuba@kernel.org + +Instead of returning -1 (-EPERM) when MDIO bus is stuck busy +while writing or 0xffff if it happens while reading, return the +appropriate -EBUSY. Also fix return type to int instead of u32. + +Fixes: 656e705243fd0 ("net-next: mediatek: add support for MT7623 ethernet") +Signed-off-by: Daniel Golle +--- +v5: fix incomplete unification of variable names phy_reg vs. phy_register +v4: clean-up return values and types, split into two commits + + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 16 ++++++++-------- + 1 file changed, 8 insertions(+), 8 deletions(-) + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -95,31 +95,31 @@ static int mtk_mdio_busy_wait(struct mtk + return -1; + } + +-static u32 _mtk_mdio_write(struct mtk_eth *eth, u32 phy_addr, +- u32 phy_register, u32 write_data) ++static int _mtk_mdio_write(struct mtk_eth *eth, u32 phy_addr, u32 phy_reg, ++ u32 write_data) + { + if (mtk_mdio_busy_wait(eth)) +- return -1; ++ return -EBUSY; + + write_data &= 0xffff; + + mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START | PHY_IAC_WRITE | +- (phy_register << PHY_IAC_REG_SHIFT) | ++ (phy_reg << PHY_IAC_REG_SHIFT) | + (phy_addr << PHY_IAC_ADDR_SHIFT) | write_data, + MTK_PHY_IAC); + + if (mtk_mdio_busy_wait(eth)) +- return -1; ++ return -EBUSY; + + return 0; + } + +-static u32 _mtk_mdio_read(struct mtk_eth *eth, int phy_addr, int phy_reg) ++static int _mtk_mdio_read(struct mtk_eth *eth, int phy_addr, int phy_reg) + { + u32 d; + + if (mtk_mdio_busy_wait(eth)) +- return 0xffff; ++ return -EBUSY; + + mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START | PHY_IAC_READ | + (phy_reg << PHY_IAC_REG_SHIFT) | +@@ -127,7 +127,7 @@ static u32 _mtk_mdio_read(struct mtk_eth + MTK_PHY_IAC); + + if (mtk_mdio_busy_wait(eth)) +- return 0xffff; ++ return -EBUSY; + + d = mtk_r32(eth, MTK_PHY_IAC) & 0xffff; + diff --git a/target/linux/mediatek/patches-5.10/701-net-ethernet-mtk_eth_soc-implement-Clause-45-MDIO-access.patch b/target/linux/mediatek/patches-5.10/701-net-ethernet-mtk_eth_soc-implement-Clause-45-MDIO-access.patch deleted file mode 100644 index 78e1a626d5..0000000000 --- a/target/linux/mediatek/patches-5.10/701-net-ethernet-mtk_eth_soc-implement-Clause-45-MDIO-access.patch +++ /dev/null @@ -1,166 +0,0 @@ -From patchwork Mon Dec 27 16:09:22 2021 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -X-Patchwork-Submitter: Daniel Golle -X-Patchwork-Id: 12699860 -X-Patchwork-Delegate: kuba@kernel.org -Date: Mon, 27 Dec 2021 16:09:22 +0000 -From: Daniel Golle -To: linux-mediatek@lists.infradead.org, netdev@vger.kernel.org, - linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org -Cc: Felix Fietkau , John Crispin , - Sean Wang , - Mark Lee , - "David S. Miller" , - Jakub Kicinski , - Matthias Brugger , - Russell King , - Andrew Lunn -Subject: [PATCH v3] net: ethernet: mtk_eth_soc: implement Clause 45 MDIO - access -Message-ID: -References: - - - -MIME-Version: 1.0 -Content-Disposition: inline -In-Reply-To: - - - -Precedence: bulk -List-ID: -X-Mailing-List: netdev@vger.kernel.org -X-Patchwork-Delegate: kuba@kernel.org - -Implement read and write access to IEEE 802.3 Clause 45 Ethernet -phy registers. -Tested on the Ubiquiti UniFi 6 LR access point featuring -MediaTek MT7622BV WiSoC with Aquantia AQR112C. - -Signed-off-by: Daniel Golle ---- -v3: return -1 instead of 0xffff on error in _mtk_mdio_write -v2: use MII_DEVADDR_C45_SHIFT and MII_REGADDR_C45_MASK to extract - device id and register address. Unify read and write functions to - have identical types and parameter names where possible as we are - anyway already replacing both function bodies. - - drivers/net/ethernet/mediatek/mtk_eth_soc.c | 62 +++++++++++++++++---- - drivers/net/ethernet/mediatek/mtk_eth_soc.h | 3 + - 2 files changed, 54 insertions(+), 11 deletions(-) - ---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c -+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c -@@ -95,18 +95,38 @@ static int mtk_mdio_busy_wait(struct mtk - return -1; - } - --static u32 _mtk_mdio_write(struct mtk_eth *eth, u32 phy_addr, -- u32 phy_register, u32 write_data) -+static u32 _mtk_mdio_write(struct mtk_eth *eth, u32 phy_addr, u32 phy_reg, -+ u32 write_data) - { - if (mtk_mdio_busy_wait(eth)) - return -1; - - write_data &= 0xffff; - -- mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START | PHY_IAC_WRITE | -- (phy_register << PHY_IAC_REG_SHIFT) | -- (phy_addr << PHY_IAC_ADDR_SHIFT) | write_data, -- MTK_PHY_IAC); -+ if (phy_reg & MII_ADDR_C45) { -+ u8 dev_num = (phy_reg >> MII_DEVADDR_C45_SHIFT) & GENMASK(4, 0); -+ u16 reg = (u16)(phy_reg & MII_REGADDR_C45_MASK); -+ -+ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START_C45 | PHY_IAC_SET_ADDR | -+ (phy_addr << PHY_IAC_ADDR_SHIFT) | -+ (dev_num << PHY_IAC_REG_SHIFT) | -+ reg, -+ MTK_PHY_IAC); -+ -+ if (mtk_mdio_busy_wait(eth)) -+ return -1; -+ -+ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START_C45 | PHY_IAC_WRITE | -+ (phy_addr << PHY_IAC_ADDR_SHIFT) | -+ (dev_num << PHY_IAC_REG_SHIFT) | -+ write_data, -+ MTK_PHY_IAC); -+ } else { -+ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START | PHY_IAC_WRITE | -+ (phy_reg << PHY_IAC_REG_SHIFT) | -+ (phy_addr << PHY_IAC_ADDR_SHIFT) | write_data, -+ MTK_PHY_IAC); -+ } - - if (mtk_mdio_busy_wait(eth)) - return -1; -@@ -114,17 +134,36 @@ static u32 _mtk_mdio_write(struct mtk_et - return 0; - } - --static u32 _mtk_mdio_read(struct mtk_eth *eth, int phy_addr, int phy_reg) -+static u32 _mtk_mdio_read(struct mtk_eth *eth, u32 phy_addr, u32 phy_reg) - { - u32 d; - - if (mtk_mdio_busy_wait(eth)) - return 0xffff; - -- mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START | PHY_IAC_READ | -- (phy_reg << PHY_IAC_REG_SHIFT) | -- (phy_addr << PHY_IAC_ADDR_SHIFT), -- MTK_PHY_IAC); -+ if (phy_reg & MII_ADDR_C45) { -+ u8 dev_num = (phy_reg >> MII_DEVADDR_C45_SHIFT) & GENMASK(4, 0); -+ u16 reg = (u16)(phy_reg & MII_REGADDR_C45_MASK); -+ -+ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START_C45 | PHY_IAC_SET_ADDR | -+ (phy_addr << PHY_IAC_ADDR_SHIFT) | -+ (dev_num << PHY_IAC_REG_SHIFT) | -+ reg, -+ MTK_PHY_IAC); -+ -+ if (mtk_mdio_busy_wait(eth)) -+ return 0xffff; -+ -+ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START_C45 | PHY_IAC_READ_C45 | -+ (phy_addr << PHY_IAC_ADDR_SHIFT) | -+ (dev_num << PHY_IAC_REG_SHIFT), -+ MTK_PHY_IAC); -+ } else { -+ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START | PHY_IAC_READ | -+ (phy_reg << PHY_IAC_REG_SHIFT) | -+ (phy_addr << PHY_IAC_ADDR_SHIFT), -+ MTK_PHY_IAC); -+ } - - if (mtk_mdio_busy_wait(eth)) - return 0xffff; -@@ -584,6 +623,7 @@ static int mtk_mdio_init(struct mtk_eth - eth->mii_bus->name = "mdio"; - eth->mii_bus->read = mtk_mdio_read; - eth->mii_bus->write = mtk_mdio_write; -+ eth->mii_bus->probe_capabilities = MDIOBUS_C22_C45; - eth->mii_bus->priv = eth; - eth->mii_bus->parent = eth->dev; - ---- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h -+++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h -@@ -340,9 +340,12 @@ - /* PHY Indirect Access Control registers */ - #define MTK_PHY_IAC 0x10004 - #define PHY_IAC_ACCESS BIT(31) -+#define PHY_IAC_SET_ADDR 0 - #define PHY_IAC_READ BIT(19) -+#define PHY_IAC_READ_C45 (BIT(18) | BIT(19)) - #define PHY_IAC_WRITE BIT(18) - #define PHY_IAC_START BIT(16) -+#define PHY_IAC_START_C45 0 - #define PHY_IAC_ADDR_SHIFT 20 - #define PHY_IAC_REG_SHIFT 25 - #define PHY_IAC_TIMEOUT HZ diff --git a/target/linux/mediatek/patches-5.10/702-net-ethernet-mtk_eth_soc-implement-Clause-45-MDIO-access.patch b/target/linux/mediatek/patches-5.10/702-net-ethernet-mtk_eth_soc-implement-Clause-45-MDIO-access.patch new file mode 100644 index 0000000000..f7732cae9b --- /dev/null +++ b/target/linux/mediatek/patches-5.10/702-net-ethernet-mtk_eth_soc-implement-Clause-45-MDIO-access.patch @@ -0,0 +1,157 @@ +From patchwork Mon Dec 27 18:31:43 2021 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +X-Patchwork-Submitter: Daniel Golle +X-Patchwork-Id: 12699994 +X-Patchwork-Delegate: kuba@kernel.org +Return-Path: +Date: Mon, 27 Dec 2021 18:31:43 +0000 +From: Daniel Golle +To: linux-mediatek@lists.infradead.org, netdev@vger.kernel.org, + linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org +Cc: Felix Fietkau , John Crispin , + Sean Wang , + Mark Lee , + "David S. Miller" , + Jakub Kicinski , + Matthias Brugger , + Russell King , + Andrew Lunn +Subject: [PATCH v5 2/2] net: ethernet: mtk_eth_soc: implement Clause 45 MDIO + access +Message-ID: +References: + +MIME-Version: 1.0 +Content-Disposition: inline +In-Reply-To: + +Precedence: bulk +List-ID: +X-Mailing-List: netdev@vger.kernel.org +X-Patchwork-Delegate: kuba@kernel.org + +Implement read and write access to IEEE 802.3 Clause 45 Ethernet +phy registers. +Tested on the Ubiquiti UniFi 6 LR access point featuring +MediaTek MT7622BV WiSoC with Aquantia AQR112C. + +Signed-off-by: Daniel Golle +--- +v5: unchanged +v4: clean-up return values and types, split into two commits +v3: return -1 instead of 0xffff on error in _mtk_mdio_write +v2: use MII_DEVADDR_C45_SHIFT and MII_REGADDR_C45_MASK to extract + device id and register address. Unify read and write functions to + have identical types and parameter names where possible as we are + anyway already replacing both function bodies. + + + drivers/net/ethernet/mediatek/mtk_eth_soc.c | 60 +++++++++++++++++---- + drivers/net/ethernet/mediatek/mtk_eth_soc.h | 3 ++ + 2 files changed, 53 insertions(+), 10 deletions(-) + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c +@@ -103,10 +103,30 @@ static int _mtk_mdio_write(struct mtk_et + + write_data &= 0xffff; + +- mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START | PHY_IAC_WRITE | +- (phy_reg << PHY_IAC_REG_SHIFT) | +- (phy_addr << PHY_IAC_ADDR_SHIFT) | write_data, +- MTK_PHY_IAC); ++ if (phy_reg & MII_ADDR_C45) { ++ u8 dev_num = (phy_reg >> MII_DEVADDR_C45_SHIFT) & GENMASK(4, 0); ++ u16 reg = (u16)(phy_reg & MII_REGADDR_C45_MASK); ++ ++ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START_C45 | PHY_IAC_SET_ADDR | ++ (phy_addr << PHY_IAC_ADDR_SHIFT) | ++ (dev_num << PHY_IAC_REG_SHIFT) | ++ reg, ++ MTK_PHY_IAC); ++ ++ if (mtk_mdio_busy_wait(eth)) ++ return -EBUSY; ++ ++ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START_C45 | PHY_IAC_WRITE | ++ (phy_addr << PHY_IAC_ADDR_SHIFT) | ++ (dev_num << PHY_IAC_REG_SHIFT) | ++ write_data, ++ MTK_PHY_IAC); ++ } else { ++ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START | PHY_IAC_WRITE | ++ (phy_reg << PHY_IAC_REG_SHIFT) | ++ (phy_addr << PHY_IAC_ADDR_SHIFT) | write_data, ++ MTK_PHY_IAC); ++ } + + if (mtk_mdio_busy_wait(eth)) + return -EBUSY; +@@ -114,17 +134,36 @@ static int _mtk_mdio_write(struct mtk_et + return 0; + } + +-static int _mtk_mdio_read(struct mtk_eth *eth, int phy_addr, int phy_reg) ++static int _mtk_mdio_read(struct mtk_eth *eth, u32 phy_addr, u32 phy_reg) + { +- u32 d; ++ int d; + + if (mtk_mdio_busy_wait(eth)) + return -EBUSY; + +- mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START | PHY_IAC_READ | +- (phy_reg << PHY_IAC_REG_SHIFT) | +- (phy_addr << PHY_IAC_ADDR_SHIFT), +- MTK_PHY_IAC); ++ if (phy_reg & MII_ADDR_C45) { ++ u8 dev_num = (phy_reg >> MII_DEVADDR_C45_SHIFT) & GENMASK(4, 0); ++ u16 reg = (u16)(phy_reg & MII_REGADDR_C45_MASK); ++ ++ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START_C45 | PHY_IAC_SET_ADDR | ++ (phy_addr << PHY_IAC_ADDR_SHIFT) | ++ (dev_num << PHY_IAC_REG_SHIFT) | ++ reg, ++ MTK_PHY_IAC); ++ ++ if (mtk_mdio_busy_wait(eth)) ++ return -EBUSY; ++ ++ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START_C45 | PHY_IAC_READ_C45 | ++ (phy_addr << PHY_IAC_ADDR_SHIFT) | ++ (dev_num << PHY_IAC_REG_SHIFT), ++ MTK_PHY_IAC); ++ } else { ++ mtk_w32(eth, PHY_IAC_ACCESS | PHY_IAC_START | PHY_IAC_READ | ++ (phy_reg << PHY_IAC_REG_SHIFT) | ++ (phy_addr << PHY_IAC_ADDR_SHIFT), ++ MTK_PHY_IAC); ++ } + + if (mtk_mdio_busy_wait(eth)) + return -EBUSY; +@@ -584,6 +623,7 @@ static int mtk_mdio_init(struct mtk_eth + eth->mii_bus->name = "mdio"; + eth->mii_bus->read = mtk_mdio_read; + eth->mii_bus->write = mtk_mdio_write; ++ eth->mii_bus->probe_capabilities = MDIOBUS_C22_C45; + eth->mii_bus->priv = eth; + eth->mii_bus->parent = eth->dev; + +--- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h ++++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h +@@ -340,9 +340,12 @@ + /* PHY Indirect Access Control registers */ + #define MTK_PHY_IAC 0x10004 + #define PHY_IAC_ACCESS BIT(31) ++#define PHY_IAC_SET_ADDR 0 + #define PHY_IAC_READ BIT(19) ++#define PHY_IAC_READ_C45 (BIT(18) | BIT(19)) + #define PHY_IAC_WRITE BIT(18) + #define PHY_IAC_START BIT(16) ++#define PHY_IAC_START_C45 0 + #define PHY_IAC_ADDR_SHIFT 20 + #define PHY_IAC_REG_SHIFT 25 + #define PHY_IAC_TIMEOUT HZ -- cgit v1.2.3