From 4c29dc1863e4f739ec2f496352935fd37c123553 Mon Sep 17 00:00:00 2001 From: Carlo Caione Date: Fri, 8 Feb 2019 17:25:07 +0000 Subject: [PATCH] net: phy: ti: use generic helpers to access MMD registers Now that generic helpers are available, use those instead of relying on ti specific functions. Signed-off-by: Carlo Caione Signed-off-by: Vladimir Oltean Acked-by: Joe Hershberger --- drivers/net/phy/ti.c | 130 +++++++++---------------------------------- 1 file changed, 25 insertions(+), 105 deletions(-) diff --git a/drivers/net/phy/ti.c b/drivers/net/phy/ti.c index 6db6edd0d0..6ac890a7f5 100644 --- a/drivers/net/phy/ti.c +++ b/drivers/net/phy/ti.c @@ -73,16 +73,6 @@ #define MII_DP83867_CFG2_SPEEDOPT_INTLOW 0x2000 #define MII_DP83867_CFG2_MASK 0x003F -#define MII_MMD_CTRL 0x0d /* MMD Access Control Register */ -#define MII_MMD_DATA 0x0e /* MMD Access Data Register */ - -/* MMD Access Control register fields */ -#define MII_MMD_CTRL_DEVAD_MASK 0x1f /* Mask MMD DEVAD*/ -#define MII_MMD_CTRL_ADDR 0x0000 /* Address */ -#define MII_MMD_CTRL_NOINCR 0x4000 /* no post increment */ -#define MII_MMD_CTRL_INCR_RDWT 0x8000 /* post increment on reads & writes */ -#define MII_MMD_CTRL_INCR_ON_WT 0xC000 /* post increment on writes only */ - /* User setting - can be taken from DTS */ #define DEFAULT_RX_ID_DELAY DP83867_RGMIIDCTL_2_25_NS #define DEFAULT_TX_ID_DELAY DP83867_RGMIIDCTL_2_75_NS @@ -116,88 +106,20 @@ struct dp83867_private { int clk_output_sel; }; -/** - * phy_read_mmd_indirect - reads data from the MMD registers - * @phydev: The PHY device bus - * @prtad: MMD Address - * @devad: MMD DEVAD - * @addr: PHY address on the MII bus - * - * Description: it reads data from the MMD registers (clause 22 to access to - * clause 45) of the specified phy address. - * To read these registers we have: - * 1) Write reg 13 // DEVAD - * 2) Write reg 14 // MMD Address - * 3) Write reg 13 // MMD Data Command for MMD DEVAD - * 3) Read reg 14 // Read MMD data - */ -int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, - int devad, int addr) -{ - int value = -1; - - /* Write the desired MMD Devad */ - phy_write(phydev, addr, MII_MMD_CTRL, devad); - - /* Write the desired MMD register address */ - phy_write(phydev, addr, MII_MMD_DATA, prtad); - - /* Select the Function : DATA with no post increment */ - phy_write(phydev, addr, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR)); - - /* Read the content of the MMD's selected register */ - value = phy_read(phydev, addr, MII_MMD_DATA); - return value; -} - -/** - * phy_write_mmd_indirect - writes data to the MMD registers - * @phydev: The PHY device - * @prtad: MMD Address - * @devad: MMD DEVAD - * @addr: PHY address on the MII bus - * @data: data to write in the MMD register - * - * Description: Write data from the MMD registers of the specified - * phy address. - * To write these registers we have: - * 1) Write reg 13 // DEVAD - * 2) Write reg 14 // MMD Address - * 3) Write reg 13 // MMD Data Command for MMD DEVAD - * 3) Write reg 14 // Write MMD data - */ -void phy_write_mmd_indirect(struct phy_device *phydev, int prtad, - int devad, int addr, u32 data) -{ - /* Write the desired MMD Devad */ - phy_write(phydev, addr, MII_MMD_CTRL, devad); - - /* Write the desired MMD register address */ - phy_write(phydev, addr, MII_MMD_DATA, prtad); - - /* Select the Function : DATA with no post increment */ - phy_write(phydev, addr, MII_MMD_CTRL, (devad | MII_MMD_CTRL_NOINCR)); - - /* Write the data into MMD's selected register */ - phy_write(phydev, addr, MII_MMD_DATA, data); -} - static int dp83867_config_port_mirroring(struct phy_device *phydev) { struct dp83867_private *dp83867 = (struct dp83867_private *)phydev->priv; u16 val; - val = phy_read_mmd_indirect(phydev, DP83867_CFG4, DP83867_DEVADDR, - phydev->addr); + val = phy_read_mmd(phydev, DP83867_DEVADDR, DP83867_CFG4); if (dp83867->port_mirroring == DP83867_PORT_MIRRORING_EN) val |= DP83867_CFG4_PORT_MIRROR_EN; else val &= ~DP83867_CFG4_PORT_MIRROR_EN; - phy_write_mmd_indirect(phydev, DP83867_CFG4, DP83867_DEVADDR, - phydev->addr, val); + phy_write_mmd(phydev, DP83867_DEVADDR, DP83867_CFG4, val); return 0; } @@ -257,13 +179,13 @@ static int dp83867_of_init(struct phy_device *phydev) /* Clock output selection if muxing property is set */ if (dp83867->clk_output_sel != DP83867_CLK_O_SEL_REF_CLK) { - val = phy_read_mmd_indirect(phydev, DP83867_IO_MUX_CFG, - DP83867_DEVADDR, phydev->addr); + val = phy_read_mmd(phydev, DP83867_DEVADDR, + DP83867_IO_MUX_CFG); val &= ~DP83867_IO_MUX_CFG_CLK_O_SEL_MASK; val |= (dp83867->clk_output_sel << DP83867_IO_MUX_CFG_CLK_O_SEL_SHIFT); - phy_write_mmd_indirect(phydev, DP83867_IO_MUX_CFG, - DP83867_DEVADDR, phydev->addr, val); + phy_write_mmd(phydev, DP83867_DEVADDR, + DP83867_IO_MUX_CFG, val); } return 0; @@ -308,11 +230,11 @@ static int dp83867_config(struct phy_device *phydev) /* Mode 1 or 2 workaround */ if (dp83867->rxctrl_strap_quirk) { - val = phy_read_mmd_indirect(phydev, DP83867_CFG4, - DP83867_DEVADDR, phydev->addr); + val = phy_read_mmd(phydev, DP83867_DEVADDR, + DP83867_CFG4); val &= ~BIT(7); - phy_write_mmd_indirect(phydev, DP83867_CFG4, - DP83867_DEVADDR, phydev->addr, val); + phy_write_mmd(phydev, DP83867_DEVADDR, + DP83867_CFG4, val); } if (phy_interface_is_rgmii(phydev)) { @@ -332,8 +254,8 @@ static int dp83867_config(struct phy_device *phydev) * register's bit 11 (marked as RESERVED). */ - bs = phy_read_mmd_indirect(phydev, DP83867_STRAP_STS1, - DP83867_DEVADDR, phydev->addr); + bs = phy_read_mmd(phydev, DP83867_DEVADDR, + DP83867_STRAP_STS1); val = phy_read(phydev, MDIO_DEVAD_NONE, MII_DP83867_PHYCTRL); if (bs & DP83867_STRAP_STS1_RESERVED) { val &= ~DP83867_PHYCR_RESERVED_MASK; @@ -354,8 +276,8 @@ static int dp83867_config(struct phy_device *phydev) MII_DP83867_CFG2_SPEEDOPT_INTLOW); phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83867_CFG2, cfg2); - phy_write_mmd_indirect(phydev, DP83867_RGMIICTL, - DP83867_DEVADDR, phydev->addr, 0x0); + phy_write_mmd(phydev, DP83867_DEVADDR, + DP83867_RGMIICTL, 0x0); phy_write(phydev, MDIO_DEVAD_NONE, MII_DP83867_PHYCTRL, DP83867_PHYCTRL_SGMIIEN | @@ -367,8 +289,8 @@ static int dp83867_config(struct phy_device *phydev) } if (phy_interface_is_rgmii(phydev)) { - val = phy_read_mmd_indirect(phydev, DP83867_RGMIICTL, - DP83867_DEVADDR, phydev->addr); + val = phy_read_mmd(phydev, DP83867_DEVADDR, + DP83867_RGMIICTL); if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID) val |= (DP83867_RGMII_TX_CLK_DELAY_EN | @@ -380,26 +302,24 @@ static int dp83867_config(struct phy_device *phydev) if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) val |= DP83867_RGMII_RX_CLK_DELAY_EN; - phy_write_mmd_indirect(phydev, DP83867_RGMIICTL, - DP83867_DEVADDR, phydev->addr, val); + phy_write_mmd(phydev, DP83867_DEVADDR, + DP83867_RGMIICTL, val); delay = (dp83867->rx_id_delay | (dp83867->tx_id_delay << DP83867_RGMII_TX_CLK_DELAY_SHIFT)); - phy_write_mmd_indirect(phydev, DP83867_RGMIIDCTL, - DP83867_DEVADDR, phydev->addr, delay); + phy_write_mmd(phydev, DP83867_DEVADDR, + DP83867_RGMIIDCTL, delay); if (dp83867->io_impedance >= 0) { - val = phy_read_mmd_indirect(phydev, - DP83867_IO_MUX_CFG, - DP83867_DEVADDR, - phydev->addr); + val = phy_read_mmd(phydev, + DP83867_DEVADDR, + DP83867_IO_MUX_CFG); val &= ~DP83867_IO_MUX_CFG_IO_IMPEDANCE_CTRL; val |= dp83867->io_impedance & DP83867_IO_MUX_CFG_IO_IMPEDANCE_CTRL; - phy_write_mmd_indirect(phydev, DP83867_IO_MUX_CFG, - DP83867_DEVADDR, phydev->addr, - val); + phy_write_mmd(phydev, DP83867_DEVADDR, + DP83867_IO_MUX_CFG, val); } } -- 2.25.1