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kernel: backport support for BCM54210E PHY

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Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This commit is contained in:
Rafał Miłecki 2017-01-28 18:51:57 +01:00
parent c170848254
commit d46ce9498c
2 changed files with 126 additions and 27 deletions
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77
target/linux/generic/patches-4.4/078-0003-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch
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@ -16,27 +16,14 @@ Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
#define BRCM_PHY_MODEL(phydev) \
((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
@@ -30,11 +30,49 @@ MODULE_DESCRIPTION("Broadcom PHY driver"
@@ -30,9 +30,32 @@ MODULE_DESCRIPTION("Broadcom PHY driver"
MODULE_AUTHOR("Maciej W. Rozycki");
MODULE_LICENSE("GPL");
+static int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum)
+{
+ /* The register must be written to both the Shadow Register Select and
+ * the Shadow Read Register Selector
+ */
+ phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum |
+ regnum << MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT);
+ return phy_read(phydev, MII_BCM54XX_AUX_CTL);
+}
+
static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
{
return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
}
-static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
+static int bcm54810_config(struct phy_device *phydev)
+{
{
- return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
+ int rc, val;
+
+ val = bcm_phy_read_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL);
@ -61,12 +48,10 @@ Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
+ return rc;
+
+ return 0;
+}
+
}
/* Needs SMDSP clock enabled via bcm54xx_phydsp_config() */
static int bcm50610_a0_workaround(struct phy_device *phydev)
{
@@ -207,6 +245,12 @@ static int bcm54xx_config_init(struct ph
@@ -207,6 +230,12 @@ static int bcm54xx_config_init(struct ph
(phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
bcm54xx_adjust_rxrefclk(phydev);
@ -79,7 +64,7 @@ Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
bcm54xx_phydsp_config(phydev);
return 0;
@@ -304,6 +348,7 @@ static int bcm5482_read_status(struct ph
@@ -304,6 +333,7 @@ static int bcm5482_read_status(struct ph
static int bcm5481_config_aneg(struct phy_device *phydev)
{
@ -87,7 +72,7 @@ Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
int ret;
/* Aneg firsly. */
@@ -334,6 +379,49 @@ static int bcm5481_config_aneg(struct ph
@@ -334,6 +364,49 @@ static int bcm5481_config_aneg(struct ph
phy_write(phydev, 0x18, reg);
}
@ -137,7 +122,7 @@ Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
return ret;
}
@@ -488,6 +576,19 @@ static struct phy_driver broadcom_driver
@@ -488,6 +561,19 @@ static struct phy_driver broadcom_driver
.config_intr = bcm_phy_config_intr,
.driver = { .owner = THIS_MODULE },
}, {
@ -157,7 +142,7 @@ Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
.phy_id = PHY_ID_BCM54616S,
.phy_id_mask = 0xfffffff0,
.name = "Broadcom BCM54616S",
@@ -527,6 +628,19 @@ static struct phy_driver broadcom_driver
@@ -527,6 +613,19 @@ static struct phy_driver broadcom_driver
.config_intr = bcm_phy_config_intr,
.driver = { .owner = THIS_MODULE },
}, {
@ -177,7 +162,7 @@ Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
.phy_id = PHY_ID_BCM5482,
.phy_id_mask = 0xfffffff0,
.name = "Broadcom BCM5482",
@@ -612,9 +726,11 @@ static struct mdio_device_id __maybe_unu
@@ -612,9 +711,11 @@ static struct mdio_device_id __maybe_unu
{ PHY_ID_BCM5411, 0xfffffff0 },
{ PHY_ID_BCM5421, 0xfffffff0 },
{ PHY_ID_BCM5461, 0xfffffff0 },
@ -253,3 +238,41 @@ Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
config BCM_CYGNUS_PHY
tristate "Drivers for Broadcom Cygnus SoC internal PHY"
--- a/drivers/net/phy/bcm-phy-lib.c
+++ b/drivers/net/phy/bcm-phy-lib.c
@@ -50,6 +50,23 @@ int bcm_phy_read_exp(struct phy_device *
}
EXPORT_SYMBOL_GPL(bcm_phy_read_exp);
+int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum)
+{
+ /* The register must be written to both the Shadow Register Select and
+ * the Shadow Read Register Selector
+ */
+ phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum |
+ regnum << MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT);
+ return phy_read(phydev, MII_BCM54XX_AUX_CTL);
+}
+EXPORT_SYMBOL_GPL(bcm54xx_auxctl_read);
+
+int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
+{
+ return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
+}
+EXPORT_SYMBOL(bcm54xx_auxctl_write);
+
int bcm_phy_write_misc(struct phy_device *phydev,
u16 reg, u16 chl, u16 val)
{
--- a/drivers/net/phy/bcm-phy-lib.h
+++ b/drivers/net/phy/bcm-phy-lib.h
@@ -19,6 +19,9 @@
int bcm_phy_write_exp(struct phy_device *phydev, u16 reg, u16 val);
int bcm_phy_read_exp(struct phy_device *phydev, u16 reg);
+int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val);
+int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum);
+
int bcm_phy_write_misc(struct phy_device *phydev,
u16 reg, u16 chl, u16 value);
int bcm_phy_read_misc(struct phy_device *phydev,

76
target/linux/generic/patches-4.4/078-0004-net-phy-pick-Broadcom-drivers-updates-from-net-next-.patch Normal file
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@ -0,0 +1,76 @@
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -30,6 +30,22 @@ MODULE_DESCRIPTION("Broadcom PHY driver"
MODULE_AUTHOR("Maciej W. Rozycki");
MODULE_LICENSE("GPL");
+static int bcm54210e_config_init(struct phy_device *phydev)
+{
+ int val;
+
+ val = bcm54xx_auxctl_read(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC);
+ val &= ~MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN;
+ val |= MII_BCM54XX_AUXCTL_MISC_WREN;
+ bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC, val);
+
+ val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL);
+ val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
+ bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
+
+ return 0;
+}
+
static int bcm54810_config(struct phy_device *phydev)
{
int rc, val;
@@ -230,7 +246,11 @@ static int bcm54xx_config_init(struct ph
(phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
bcm54xx_adjust_rxrefclk(phydev);
- if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810) {
+ if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54210E) {
+ err = bcm54210e_config_init(phydev);
+ if (err)
+ return err;
+ } else if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810) {
err = bcm54810_config(phydev);
if (err)
return err;
@@ -548,6 +568,19 @@ static struct phy_driver broadcom_driver
.config_intr = bcm_phy_config_intr,
.driver = { .owner = THIS_MODULE },
}, {
+ .phy_id = PHY_ID_BCM54210E,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Broadcom BCM54210E",
+ .features = PHY_GBIT_FEATURES |
+ SUPPORTED_Pause | SUPPORTED_Asym_Pause,
+ .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+ .config_init = bcm54xx_config_init,
+ .config_aneg = genphy_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_BCM5461,
.phy_id_mask = 0xfffffff0,
.name = "Broadcom BCM5461",
@@ -710,6 +743,7 @@ module_phy_driver(broadcom_drivers);
static struct mdio_device_id __maybe_unused broadcom_tbl[] = {
{ PHY_ID_BCM5411, 0xfffffff0 },
{ PHY_ID_BCM5421, 0xfffffff0 },
+ { PHY_ID_BCM54210E, 0xfffffff0 },
{ PHY_ID_BCM5461, 0xfffffff0 },
{ PHY_ID_BCM54612E, 0xfffffff0 },
{ PHY_ID_BCM54616S, 0xfffffff0 },
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
@@ -17,6 +17,7 @@
#define PHY_ID_BCM5482 0x0143bcb0
#define PHY_ID_BCM5411 0x00206070
#define PHY_ID_BCM5421 0x002060e0
+#define PHY_ID_BCM54210E 0x600d84a0
#define PHY_ID_BCM5464 0x002060b0
#define PHY_ID_BCM5461 0x002060c0
#define PHY_ID_BCM54612E 0x03625e60