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Message-ID: <20200515172447.GA2101@ns.kevlo.org>
Date: Sat, 16 May 2020 01:24:47 +0800
From: Kevin Lo <kevlo@...lo.org>
To: netdev@...r.kernel.org
Cc: Florian Fainelli <f.fainelli@...il.com>,
Andrew Lunn <andrew@...n.ch>,
"David S. Miller" <davem@...emloft.net>
Subject: [PATCH net-next] 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@...lo.org>
Reviewed-by: Florian Fainelli <f.fainelli@...il.com>
---
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index 97201d5cf007..f61cb3add479 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;
@@ -722,6 +756,17 @@ static struct phy_driver broadcom_drivers[] = {
.config_intr = bcm_phy_config_intr,
.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,
@@ -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)
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