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kernel: backport support for BCM54612E PHY

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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This commit is contained in:
Rafał Miłecki 2017-01-28 17:33:56 +01:00
parent f5ab082243
commit 2ee7bc0a5e
1 changed files with 103 additions and 0 deletions
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103
target/linux/generic/patches-4.4/078-0003-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch Normal file
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@ -0,0 +1,103 @@
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Subject: [PATCH 1/2] net: phy: cherry-pick Broadcom drivers updates from
v4.10-rc1
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -337,6 +337,41 @@ static int bcm5481_config_aneg(struct ph
return ret;
}
+static int bcm54612e_config_aneg(struct phy_device *phydev)
+{
+ int ret;
+
+ /* First, auto-negotiate. */
+ ret = genphy_config_aneg(phydev);
+
+ /* Clear TX internal delay unless requested. */
+ if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
+ (phydev->interface != PHY_INTERFACE_MODE_RGMII_TXID)) {
+ /* Disable TXD to GTXCLK clock delay (default set) */
+ /* Bit 9 is the only field in shadow register 00011 */
+ bcm_phy_write_shadow(phydev, 0x03, 0);
+ }
+
+ /* Clear RX internal delay unless requested. */
+ if ((phydev->interface != PHY_INTERFACE_MODE_RGMII_ID) &&
+ (phydev->interface != PHY_INTERFACE_MODE_RGMII_RXID)) {
+ u16 reg;
+
+ /* Errata: reads require filling in the write selector field */
+ bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
+ MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC);
+ reg = phy_read(phydev, MII_BCM54XX_AUX_CTL);
+ /* Disable RXD to RXC delay (default set) */
+ reg &= ~MII_BCM54XX_AUXCTL_MISC_RXD_RXC_SKEW;
+ /* Clear shadow selector field */
+ reg &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MASK;
+ bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
+ MII_BCM54XX_AUXCTL_MISC_WREN | reg);
+ }
+
+ return ret;
+}
+
static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set)
{
int val;
@@ -488,6 +523,19 @@ static struct phy_driver broadcom_driver
.config_intr = bcm_phy_config_intr,
.driver = { .owner = THIS_MODULE },
}, {
+ .phy_id = PHY_ID_BCM54612E,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Broadcom BCM54612E",
+ .features = PHY_GBIT_FEATURES |
+ SUPPORTED_Pause | SUPPORTED_Asym_Pause,
+ .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+ .config_init = bcm54xx_config_init,
+ .config_aneg = bcm54612e_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = bcm_phy_ack_intr,
+ .config_intr = bcm_phy_config_intr,
+ .driver = { .owner = THIS_MODULE },
+}, {
.phy_id = PHY_ID_BCM54616S,
.phy_id_mask = 0xfffffff0,
.name = "Broadcom BCM54616S",
@@ -612,6 +660,7 @@ static struct mdio_device_id __maybe_unu
{ PHY_ID_BCM5411, 0xfffffff0 },
{ PHY_ID_BCM5421, 0xfffffff0 },
{ PHY_ID_BCM5461, 0xfffffff0 },
+ { PHY_ID_BCM54612E, 0xfffffff0 },
{ PHY_ID_BCM54616S, 0xfffffff0 },
{ PHY_ID_BCM5464, 0xfffffff0 },
{ PHY_ID_BCM5481, 0xfffffff0 },
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -18,6 +18,7 @@
#define PHY_ID_BCM5421 0x002060e0
#define PHY_ID_BCM5464 0x002060b0
#define PHY_ID_BCM5461 0x002060c0
+#define PHY_ID_BCM54612E 0x03625e60
#define PHY_ID_BCM54616S 0x03625d10
#define PHY_ID_BCM57780 0x03625d90
@@ -102,11 +103,12 @@
#define MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA 0x0800
#define MII_BCM54XX_AUXCTL_MISC_WREN 0x8000
+#define MII_BCM54XX_AUXCTL_MISC_RXD_RXC_SKEW 0x0100
#define MII_BCM54XX_AUXCTL_MISC_FORCE_AMDIX 0x0200
#define MII_BCM54XX_AUXCTL_MISC_RDSEL_MISC 0x7000
#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC 0x0007
-#define MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL 0x0000
+#define MII_BCM54XX_AUXCTL_SHDWSEL_MASK 0x0007
/*
* Broadcom LED source encodings. These are used in BCM5461, BCM5481,