diff options
author | Kevin Lo <kevlo@kevlo.org> | 2020-05-15 20:24:47 +0300 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2020-05-15 20:56:31 +0300 |
commit | b0ed0bbfb3046ed127f6004b5893ccb6cdd9ba90 (patch) | |
tree | 303a5e0b559b650dfd3bff39d17e6aec51bb9e32 | |
parent | d42d118cfc22759231e779ebb89a99b15ca22bdf (diff) | |
download | linux-b0ed0bbfb3046ed127f6004b5893ccb6cdd9ba90.tar.xz |
net: phy: broadcom: add support for BCM54811 PHY
The BCM54811 PHY shares many similarities with the already supported BCM54810
PHY but additionally requires some semi-unique configuration.
Signed-off-by: Kevin Lo <kevlo@kevlo.org>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | drivers/net/phy/broadcom.c | 56 | ||||
-rw-r--r-- | include/linux/brcmphy.h | 2 |
2 files changed, 53 insertions, 5 deletions
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c index 97201d5cf007..8cd8d188542a 100644 --- a/drivers/net/phy/broadcom.c +++ b/drivers/net/phy/broadcom.c @@ -195,7 +195,8 @@ static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev) if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM57780 && BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610 && BRCM_PHY_MODEL(phydev) != PHY_ID_BCM50610M && - BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54810) + BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54810 && + BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811) return; val = bcm_phy_read_shadow(phydev, BCM54XX_SHD_SCR3); @@ -214,8 +215,10 @@ static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev) clk125en = false; } else { if (phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED) { - /* Here, bit 0 _enables_ CLK125 when set */ - val &= ~BCM54XX_SHD_SCR3_DEF_CLK125; + if (BRCM_PHY_MODEL(phydev) != PHY_ID_BCM54811) { + /* Here, bit 0 _enables_ CLK125 when set */ + val &= ~BCM54XX_SHD_SCR3_DEF_CLK125; + } clk125en = false; } } @@ -225,8 +228,13 @@ static void bcm54xx_adjust_rxrefclk(struct phy_device *phydev) else val |= BCM54XX_SHD_SCR3_DLLAPD_DIS; - if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) - val |= BCM54XX_SHD_SCR3_TRDDAPD; + if (phydev->dev_flags & PHY_BRCM_DIS_TXCRXC_NOENRGY) { + if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810 || + BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54811) + val |= BCM54810_SHD_SCR3_TRDDAPD; + else + val |= BCM54XX_SHD_SCR3_TRDDAPD; + } if (orig != val) bcm_phy_write_shadow(phydev, BCM54XX_SHD_SCR3, val); @@ -327,6 +335,32 @@ static int bcm54xx_resume(struct phy_device *phydev) return bcm54xx_config_init(phydev); } +static int bcm54811_config_init(struct phy_device *phydev) +{ + int err, reg; + + /* Disable BroadR-Reach function. */ + reg = bcm_phy_read_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL); + reg &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN; + err = bcm_phy_write_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL, + reg); + if (err < 0) + return err; + + err = bcm54xx_config_init(phydev); + + /* Enable CLK125 MUX on LED4 if ref clock is enabled. */ + if (!(phydev->dev_flags & PHY_BRCM_RX_REFCLK_UNUSED)) { + reg = bcm_phy_read_exp(phydev, BCM54612E_EXP_SPARE0); + err = bcm_phy_write_exp(phydev, BCM54612E_EXP_SPARE0, + BCM54612E_LED4_CLK125OUT_EN | reg); + if (err < 0) + return err; + } + + return err; +} + static int bcm5482_config_init(struct phy_device *phydev) { int err, reg; @@ -723,6 +757,17 @@ static struct phy_driver broadcom_drivers[] = { .suspend = genphy_suspend, .resume = bcm54xx_resume, }, { + .phy_id = PHY_ID_BCM54811, + .phy_id_mask = 0xfffffff0, + .name = "Broadcom BCM54811", + /* PHY_GBIT_FEATURES */ + .config_init = bcm54811_config_init, + .config_aneg = bcm5481_config_aneg, + .ack_interrupt = bcm_phy_ack_intr, + .config_intr = bcm_phy_config_intr, + .suspend = genphy_suspend, + .resume = bcm54xx_resume, +}, { .phy_id = PHY_ID_BCM5482, .phy_id_mask = 0xfffffff0, .name = "Broadcom BCM5482", @@ -816,6 +861,7 @@ static struct mdio_device_id __maybe_unused broadcom_tbl[] = { { PHY_ID_BCM5464, 0xfffffff0 }, { PHY_ID_BCM5481, 0xfffffff0 }, { PHY_ID_BCM54810, 0xfffffff0 }, + { PHY_ID_BCM54811, 0xfffffff0 }, { PHY_ID_BCM5482, 0xfffffff0 }, { PHY_ID_BCM50610, 0xfffffff0 }, { PHY_ID_BCM50610M, 0xfffffff0 }, diff --git a/include/linux/brcmphy.h b/include/linux/brcmphy.h index d41624db6de2..6ad4c000661a 100644 --- a/include/linux/brcmphy.h +++ b/include/linux/brcmphy.h @@ -17,6 +17,7 @@ #define PHY_ID_BCM5395 0x0143bcf0 #define PHY_ID_BCM53125 0x03625f20 #define PHY_ID_BCM54810 0x03625d00 +#define PHY_ID_BCM54811 0x03625cc0 #define PHY_ID_BCM5482 0x0143bcb0 #define PHY_ID_BCM5411 0x00206070 #define PHY_ID_BCM5421 0x002060e0 @@ -255,6 +256,7 @@ #define BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN (1 << 0) #define BCM54810_SHD_CLK_CTL 0x3 #define BCM54810_SHD_CLK_CTL_GTXCLK_EN (1 << 9) +#define BCM54810_SHD_SCR3_TRDDAPD 0x0100 /* BCM54612E Registers */ #define BCM54612E_EXP_SPARE0 (MII_BCM54XX_EXP_SEL_ETC + 0x34) |