diff options
| author | Divya Koppera <divya.koppera@microchip.com> | 2024-12-19 18:03:11 +0530 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-12-23 10:30:59 -0800 |
| commit | 9fc3d6fe802923b026ecac16e59c0acdd6744d5d (patch) | |
| tree | 27f32b38634d66eaed3c8175fdb88a39a23a4349 /drivers/net/phy | |
| parent | 85b39f7593e1383b235f1e9b3d943cc2e91b6b10 (diff) | |
net: phy: microchip_t1 : Add initialization of ptp for lan887x
Add initialization of ptp for lan887x.
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Divya Koppera <divya.koppera@microchip.com>
Link: https://patch.msgid.link/20241219123311.30213-6-divya.koppera@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/phy')
| -rw-r--r-- | drivers/net/phy/microchip_t1.c | 41 |
1 files changed, 38 insertions, 3 deletions
diff --git a/drivers/net/phy/microchip_t1.c b/drivers/net/phy/microchip_t1.c index b17bf6708003..73f28463bc35 100644 --- a/drivers/net/phy/microchip_t1.c +++ b/drivers/net/phy/microchip_t1.c @@ -10,11 +10,15 @@ #include <linux/ethtool.h> #include <linux/ethtool_netlink.h> #include <linux/bitfield.h> +#include "microchip_rds_ptp.h" #define PHY_ID_LAN87XX 0x0007c150 #define PHY_ID_LAN937X 0x0007c180 #define PHY_ID_LAN887X 0x0007c1f0 +#define MCHP_RDS_PTP_LTC_BASE_ADDR 0xe000 +#define MCHP_RDS_PTP_PORT_BASE_ADDR (MCHP_RDS_PTP_LTC_BASE_ADDR + 0x800) + /* External Register Control Register */ #define LAN87XX_EXT_REG_CTL (0x14) #define LAN87XX_EXT_REG_CTL_RD_CTL (0x1000) @@ -229,6 +233,7 @@ #define LAN887X_INT_STS 0xf000 #define LAN887X_INT_MSK 0xf001 +#define LAN887X_INT_MSK_P1588_MOD_INT_MSK BIT(3) #define LAN887X_INT_MSK_T1_PHY_INT_MSK BIT(2) #define LAN887X_INT_MSK_LINK_UP_MSK BIT(1) #define LAN887X_INT_MSK_LINK_DOWN_MSK BIT(0) @@ -319,6 +324,8 @@ struct lan887x_regwr_map { struct lan887x_priv { u64 stats[ARRAY_SIZE(lan887x_hw_stats)]; + struct mchp_rds_ptp_clock *clock; + bool init_done; }; static int lan937x_dsp_workaround(struct phy_device *phydev, u16 ereg, u8 bank) @@ -1269,8 +1276,19 @@ static int lan887x_get_features(struct phy_device *phydev) static int lan887x_phy_init(struct phy_device *phydev) { + struct lan887x_priv *priv = phydev->priv; int ret; + if (!priv->init_done && phy_interrupt_is_valid(phydev)) { + priv->clock = mchp_rds_ptp_probe(phydev, MDIO_MMD_VEND1, + MCHP_RDS_PTP_LTC_BASE_ADDR, + MCHP_RDS_PTP_PORT_BASE_ADDR); + if (IS_ERR(priv->clock)) + return PTR_ERR(priv->clock); + + priv->init_done = true; + } + /* Clear loopback */ ret = phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, LAN887X_MIS_CFG_REG2, @@ -1470,6 +1488,7 @@ static int lan887x_probe(struct phy_device *phydev) if (!priv) return -ENOMEM; + priv->init_done = false; phydev->priv = priv; return lan887x_phy_setup(phydev); @@ -1518,6 +1537,7 @@ static void lan887x_get_strings(struct phy_device *phydev, u8 *data) static int lan887x_config_intr(struct phy_device *phydev) { + struct lan887x_priv *priv = phydev->priv; int rc; if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { @@ -1537,12 +1557,24 @@ static int lan887x_config_intr(struct phy_device *phydev) rc = phy_read_mmd(phydev, MDIO_MMD_VEND1, LAN887X_INT_STS); } + if (rc < 0) + return rc; - return rc < 0 ? rc : 0; + if (phy_is_default_hwtstamp(phydev)) { + return mchp_rds_ptp_top_config_intr(priv->clock, + LAN887X_INT_MSK, + LAN887X_INT_MSK_P1588_MOD_INT_MSK, + (phydev->interrupts == + PHY_INTERRUPT_ENABLED)); + } + + return 0; } static irqreturn_t lan887x_handle_interrupt(struct phy_device *phydev) { + struct lan887x_priv *priv = phydev->priv; + int rc = IRQ_NONE; int irq_status; irq_status = phy_read_mmd(phydev, MDIO_MMD_VEND1, LAN887X_INT_STS); @@ -1553,10 +1585,13 @@ static irqreturn_t lan887x_handle_interrupt(struct phy_device *phydev) if (irq_status & LAN887X_MX_CHIP_TOP_LINK_MSK) { phy_trigger_machine(phydev); - return IRQ_HANDLED; + rc = IRQ_HANDLED; } - return IRQ_NONE; + if (irq_status & LAN887X_INT_MSK_P1588_MOD_INT_MSK) + rc = mchp_rds_ptp_handle_interrupt(priv->clock); + + return rc; } static int lan887x_cd_reset(struct phy_device *phydev, |