diff options
| -rw-r--r-- | drivers/net/phy/dp83869.c | 292 |
1 files changed, 292 insertions, 0 deletions
diff --git a/drivers/net/phy/dp83869.c b/drivers/net/phy/dp83869.c index 81899bc99add..0aee5f645b71 100644 --- a/drivers/net/phy/dp83869.c +++ b/drivers/net/phy/dp83869.c @@ -4,12 +4,14 @@ */ #include <linux/ethtool.h> +#include <linux/etherdevice.h> #include <linux/kernel.h> #include <linux/mii.h> #include <linux/module.h> #include <linux/of.h> #include <linux/phy.h> #include <linux/delay.h> +#include <linux/bitfield.h> #include <dt-bindings/net/ti-dp83869.h> @@ -19,6 +21,7 @@ #define MII_DP83869_PHYCTRL 0x10 #define MII_DP83869_MICR 0x12 #define MII_DP83869_ISR 0x13 +#define DP83869_CFG2 0x14 #define DP83869_CTRL 0x1f #define DP83869_CFG4 0x1e @@ -27,6 +30,13 @@ #define DP83869_RGMIICTL 0x0032 #define DP83869_STRAP_STS1 0x006e #define DP83869_RGMIIDCTL 0x0086 +#define DP83869_RXFCFG 0x0134 +#define DP83869_RXFPMD1 0x0136 +#define DP83869_RXFPMD2 0x0137 +#define DP83869_RXFPMD3 0x0138 +#define DP83869_RXFSOP1 0x0139 +#define DP83869_RXFSOP2 0x013A +#define DP83869_RXFSOP3 0x013B #define DP83869_IO_MUX_CFG 0x0170 #define DP83869_OP_MODE 0x01df #define DP83869_FX_CTRL 0x0c00 @@ -104,6 +114,26 @@ #define DP83869_OP_MODE_MII BIT(5) #define DP83869_SGMII_RGMII_BRIDGE BIT(6) +/* RXFCFG bits*/ +#define DP83869_WOL_MAGIC_EN BIT(0) +#define DP83869_WOL_PATTERN_EN BIT(1) +#define DP83869_WOL_BCAST_EN BIT(2) +#define DP83869_WOL_UCAST_EN BIT(4) +#define DP83869_WOL_SEC_EN BIT(5) +#define DP83869_WOL_ENH_MAC BIT(7) + +/* CFG2 bits */ +#define DP83869_DOWNSHIFT_EN (BIT(8) | BIT(9)) +#define DP83869_DOWNSHIFT_ATTEMPT_MASK (BIT(10) | BIT(11)) +#define DP83869_DOWNSHIFT_1_COUNT_VAL 0 +#define DP83869_DOWNSHIFT_2_COUNT_VAL 1 +#define DP83869_DOWNSHIFT_4_COUNT_VAL 2 +#define DP83869_DOWNSHIFT_8_COUNT_VAL 3 +#define DP83869_DOWNSHIFT_1_COUNT 1 +#define DP83869_DOWNSHIFT_2_COUNT 2 +#define DP83869_DOWNSHIFT_4_COUNT 4 +#define DP83869_DOWNSHIFT_8_COUNT 8 + enum { DP83869_PORT_MIRRORING_KEEP, DP83869_PORT_MIRRORING_EN, @@ -177,6 +207,256 @@ static int dp83869_config_intr(struct phy_device *phydev) return phy_write(phydev, MII_DP83869_MICR, micr_status); } +static int dp83869_set_wol(struct phy_device *phydev, + struct ethtool_wolinfo *wol) +{ + struct net_device *ndev = phydev->attached_dev; + int val_rxcfg, val_micr; + u8 *mac; + int ret; + + val_rxcfg = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_RXFCFG); + if (val_rxcfg < 0) + return val_rxcfg; + + val_micr = phy_read(phydev, MII_DP83869_MICR); + if (val_micr < 0) + return val_micr; + + if (wol->wolopts & (WAKE_MAGIC | WAKE_MAGICSECURE | WAKE_UCAST | + WAKE_BCAST)) { + val_rxcfg |= DP83869_WOL_ENH_MAC; + val_micr |= MII_DP83869_MICR_WOL_INT_EN; + + if (wol->wolopts & WAKE_MAGIC || + wol->wolopts & WAKE_MAGICSECURE) { + mac = (u8 *)ndev->dev_addr; + + if (!is_valid_ether_addr(mac)) + return -EINVAL; + + ret = phy_write_mmd(phydev, DP83869_DEVADDR, + DP83869_RXFPMD1, + mac[1] << 8 | mac[0]); + if (ret) + return ret; + + ret = phy_write_mmd(phydev, DP83869_DEVADDR, + DP83869_RXFPMD2, + mac[3] << 8 | mac[2]); + if (ret) + return ret; + + ret = phy_write_mmd(phydev, DP83869_DEVADDR, + DP83869_RXFPMD3, + mac[5] << 8 | mac[4]); + if (ret) + return ret; + + val_rxcfg |= DP83869_WOL_MAGIC_EN; + } else { + val_rxcfg &= ~DP83869_WOL_MAGIC_EN; + } + + if (wol->wolopts & WAKE_MAGICSECURE) { + ret = phy_write_mmd(phydev, DP83869_DEVADDR, + DP83869_RXFSOP1, + (wol->sopass[1] << 8) | wol->sopass[0]); + if (ret) + return ret; + + ret = phy_write_mmd(phydev, DP83869_DEVADDR, + DP83869_RXFSOP2, + (wol->sopass[3] << 8) | wol->sopass[2]); + if (ret) + return ret; + ret = phy_write_mmd(phydev, DP83869_DEVADDR, + DP83869_RXFSOP3, + (wol->sopass[5] << 8) | wol->sopass[4]); + if (ret) + return ret; + + val_rxcfg |= DP83869_WOL_SEC_EN; + } else { + val_rxcfg &= ~DP83869_WOL_SEC_EN; + } + + if (wol->wolopts & WAKE_UCAST) + val_rxcfg |= DP83869_WOL_UCAST_EN; + else + val_rxcfg &= ~DP83869_WOL_UCAST_EN; + + if (wol->wolopts & WAKE_BCAST) + val_rxcfg |= DP83869_WOL_BCAST_EN; + else + val_rxcfg &= ~DP83869_WOL_BCAST_EN; + } else { + val_rxcfg &= ~DP83869_WOL_ENH_MAC; + val_micr &= ~MII_DP83869_MICR_WOL_INT_EN; + } + + ret = phy_write_mmd(phydev, DP83869_DEVADDR, DP83869_RXFCFG, val_rxcfg); + if (ret) + return ret; + + return phy_write(phydev, MII_DP83869_MICR, val_micr); +} + +static void dp83869_get_wol(struct phy_device *phydev, + struct ethtool_wolinfo *wol) +{ + u16 value, sopass_val; + + wol->supported = (WAKE_UCAST | WAKE_BCAST | WAKE_MAGIC | + WAKE_MAGICSECURE); + wol->wolopts = 0; + + value = phy_read_mmd(phydev, DP83869_DEVADDR, DP83869_RXFCFG); + if (value < 0) { + phydev_err(phydev, "Failed to read RX CFG\n"); + return; + } + + if (value & DP83869_WOL_UCAST_EN) + wol->wolopts |= WAKE_UCAST; + + if (value & DP83869_WOL_BCAST_EN) + wol->wolopts |= WAKE_BCAST; + + if (value & DP83869_WOL_MAGIC_EN) + wol->wolopts |= WAKE_MAGIC; + + if (value & DP83869_WOL_SEC_EN) { + sopass_val = phy_read_mmd(phydev, DP83869_DEVADDR, + DP83869_RXFSOP1); + if (sopass_val < 0) { + phydev_err(phydev, "Failed to read RX SOP 1\n"); + return; + } + + wol->sopass[0] = (sopass_val & 0xff); + wol->sopass[1] = (sopass_val >> 8); + + sopass_val = phy_read_mmd(phydev, DP83869_DEVADDR, + DP83869_RXFSOP2); + if (sopass_val < 0) { + phydev_err(phydev, "Failed to read RX SOP 2\n"); + return; + } + + wol->sopass[2] = (sopass_val & 0xff); + wol->sopass[3] = (sopass_val >> 8); + + sopass_val = phy_read_mmd(phydev, DP83869_DEVADDR, + DP83869_RXFSOP3); + if (sopass_val < 0) { + phydev_err(phydev, "Failed to read RX SOP 3\n"); + return; + } + + wol->sopass[4] = (sopass_val & 0xff); + wol->sopass[5] = (sopass_val >> 8); + + wol->wolopts |= WAKE_MAGICSECURE; + } + + if (!(value & DP83869_WOL_ENH_MAC)) + wol->wolopts = 0; +} + +static int dp83869_get_downshift(struct phy_device *phydev, u8 *data) +{ + int val, cnt, enable, count; + + val = phy_read(phydev, DP83869_CFG2); + if (val < 0) + return val; + + enable = FIELD_GET(DP83869_DOWNSHIFT_EN, val); + cnt = FIELD_GET(DP83869_DOWNSHIFT_ATTEMPT_MASK, val); + + switch (cnt) { + case DP83869_DOWNSHIFT_1_COUNT_VAL: + count = DP83869_DOWNSHIFT_1_COUNT; + break; + case DP83869_DOWNSHIFT_2_COUNT_VAL: + count = DP83869_DOWNSHIFT_2_COUNT; + break; + case DP83869_DOWNSHIFT_4_COUNT_VAL: + count = DP83869_DOWNSHIFT_4_COUNT; + break; + case DP83869_DOWNSHIFT_8_COUNT_VAL: + count = DP83869_DOWNSHIFT_8_COUNT; + break; + default: + return -EINVAL; + } + + *data = enable ? count : DOWNSHIFT_DEV_DISABLE; + + return 0; +} + +static int dp83869_set_downshift(struct phy_device *phydev, u8 cnt) +{ + int val, count; + + if (cnt > DP83869_DOWNSHIFT_8_COUNT) + return -EINVAL; + + if (!cnt) + return phy_clear_bits(phydev, DP83869_CFG2, + DP83869_DOWNSHIFT_EN); + + switch (cnt) { + case DP83869_DOWNSHIFT_1_COUNT: + count = DP83869_DOWNSHIFT_1_COUNT_VAL; + break; + case DP83869_DOWNSHIFT_2_COUNT: + count = DP83869_DOWNSHIFT_2_COUNT_VAL; + break; + case DP83869_DOWNSHIFT_4_COUNT: + count = DP83869_DOWNSHIFT_4_COUNT_VAL; + break; + case DP83869_DOWNSHIFT_8_COUNT: + count = DP83869_DOWNSHIFT_8_COUNT_VAL; + break; + default: + phydev_err(phydev, + "Downshift count must be 1, 2, 4 or 8\n"); + return -EINVAL; + } + + val = DP83869_DOWNSHIFT_EN; + val |= FIELD_PREP(DP83869_DOWNSHIFT_ATTEMPT_MASK, count); + + return phy_modify(phydev, DP83869_CFG2, + DP83869_DOWNSHIFT_EN | DP83869_DOWNSHIFT_ATTEMPT_MASK, + val); +} + +static int dp83869_get_tunable(struct phy_device *phydev, + struct ethtool_tunable *tuna, void *data) +{ + switch (tuna->id) { + case ETHTOOL_PHY_DOWNSHIFT: + return dp83869_get_downshift(phydev, data); + default: + return -EOPNOTSUPP; + } +} + +static int dp83869_set_tunable(struct phy_device *phydev, + struct ethtool_tunable *tuna, const void *data) +{ + switch (tuna->id) { + case ETHTOOL_PHY_DOWNSHIFT: + return dp83869_set_downshift(phydev, *(const u8 *)data); + default: + return -EOPNOTSUPP; + } +} + static int dp83869_config_port_mirroring(struct phy_device *phydev) { struct dp83869_private *dp83869 = phydev->priv; @@ -469,6 +749,12 @@ static int dp83869_config_init(struct phy_device *phydev) struct dp83869_private *dp83869 = phydev->priv; int ret, val; + /* Force speed optimization for the PHY even if it strapped */ + ret = phy_modify(phydev, DP83869_CFG2, DP83869_DOWNSHIFT_EN, + DP83869_DOWNSHIFT_EN); + if (ret) + return ret; + ret = dp83869_configure_mode(phydev, dp83869); if (ret) return ret; @@ -568,6 +854,12 @@ static struct phy_driver dp83869_driver[] = { .config_intr = dp83869_config_intr, .read_status = dp83869_read_status, + .get_tunable = dp83869_get_tunable, + .set_tunable = dp83869_set_tunable, + + .get_wol = dp83869_get_wol, + .set_wol = dp83869_set_wol, + .suspend = genphy_suspend, .resume = genphy_resume, }, |