[source] kernel: backport support for BCM54810 PHY
LEDE Commits
lede-commits at lists.infradead.org
Sat Jan 28 10:21:48 PST 2017
rmilecki pushed a commit to source.git, branch lede-17.01:
https://git.lede-project.org/c170848254972aea37bd6cc21276099eff822429
commit c170848254972aea37bd6cc21276099eff822429
Author: Rafał Miłecki <rafal at milecki.pl>
AuthorDate: Sat Jan 28 18:44:23 2017 +0100
kernel: backport support for BCM54810 PHY
Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
---
...rry-pick-Broadcom-drivers-updates-from-v4.patch | 176 +++++++++++++++++++--
1 file changed, 164 insertions(+), 12 deletions(-)
diff --git a/target/linux/generic/patches-4.4/078-0003-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch b/target/linux/generic/patches-4.4/078-0003-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch
index 6f6536b..0aed558 100644
--- a/target/linux/generic/patches-4.4/078-0003-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch
+++ b/target/linux/generic/patches-4.4/078-0003-net-phy-cherry-pick-Broadcom-drivers-updates-from-v4.patch
@@ -7,10 +7,101 @@ Signed-off-by: Rafał Miłecki <rafal at 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;
+@@ -18,7 +18,7 @@
+ #include <linux/module.h>
+ #include <linux/phy.h>
+ #include <linux/brcmphy.h>
+-
++#include <linux/of.h>
+
+ #define BRCM_PHY_MODEL(phydev) \
+ ((phydev)->drv->phy_id & (phydev)->drv->phy_id_mask)
+@@ -30,11 +30,49 @@ 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 bcm54810_config(struct phy_device *phydev)
++{
++ int rc, val;
++
++ val = bcm_phy_read_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL);
++ val &= ~BCM54810_EXP_BROADREACH_LRE_MISC_CTL_EN;
++ rc = bcm_phy_write_exp(phydev, BCM54810_EXP_BROADREACH_LRE_MISC_CTL,
++ val);
++ if (rc < 0)
++ return rc;
++
++ 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;
++ rc = bcm54xx_auxctl_write(phydev, MII_BCM54XX_AUXCTL_SHDWSEL_MISC,
++ val);
++ if (rc < 0)
++ return rc;
++
++ val = bcm_phy_read_shadow(phydev, BCM54810_SHD_CLK_CTL);
++ val &= ~BCM54810_SHD_CLK_CTL_GTXCLK_EN;
++ rc = bcm_phy_write_shadow(phydev, BCM54810_SHD_CLK_CTL, val);
++ if (rc < 0)
++ 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
+ (phydev->dev_flags & PHY_BRCM_AUTO_PWRDWN_ENABLE))
+ bcm54xx_adjust_rxrefclk(phydev);
+
++ if (BRCM_PHY_MODEL(phydev) == PHY_ID_BCM54810) {
++ err = bcm54810_config(phydev);
++ if (err)
++ return err;
++ }
++
+ bcm54xx_phydsp_config(phydev);
+
+ return 0;
+@@ -304,6 +348,7 @@ static int bcm5482_read_status(struct ph
+
+ static int bcm5481_config_aneg(struct phy_device *phydev)
+ {
++ struct device_node *np = phydev->dev.of_node;
+ int ret;
+
+ /* Aneg firsly. */
+@@ -334,6 +379,49 @@ static int bcm5481_config_aneg(struct ph
+ phy_write(phydev, 0x18, reg);
+ }
+
++ if (of_property_read_bool(np, "enet-phy-lane-swap")) {
++ /* Lane Swap - Undocumented register...magic! */
++ ret = bcm_phy_write_exp(phydev, MII_BCM54XX_EXP_SEL_ER + 0x9,
++ 0x11B);
++ if (ret < 0)
++ return ret;
++ }
++
++ return ret;
++}
++
+static int bcm54612e_config_aneg(struct phy_device *phydev)
+{
+ int ret;
@@ -43,13 +134,10 @@ Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
+ 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
+ return ret;
+ }
+
+@@ -488,6 +576,19 @@ static struct phy_driver broadcom_driver
.config_intr = bcm_phy_config_intr,
.driver = { .owner = THIS_MODULE },
}, {
@@ -69,7 +157,27 @@ Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
.phy_id = PHY_ID_BCM54616S,
.phy_id_mask = 0xfffffff0,
.name = "Broadcom BCM54616S",
-@@ -612,6 +660,7 @@ static struct mdio_device_id __maybe_unu
+@@ -527,6 +628,19 @@ static struct phy_driver broadcom_driver
+ .config_intr = bcm_phy_config_intr,
+ .driver = { .owner = THIS_MODULE },
+ }, {
++ .phy_id = PHY_ID_BCM54810,
++ .phy_id_mask = 0xfffffff0,
++ .name = "Broadcom BCM54810",
++ .features = PHY_GBIT_FEATURES |
++ SUPPORTED_Pause | SUPPORTED_Asym_Pause,
++ .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
++ .config_init = bcm54xx_config_init,
++ .config_aneg = bcm5481_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_BCM5482,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Broadcom BCM5482",
+@@ -612,9 +726,11 @@ static struct mdio_device_id __maybe_unu
{ PHY_ID_BCM5411, 0xfffffff0 },
{ PHY_ID_BCM5421, 0xfffffff0 },
{ PHY_ID_BCM5461, 0xfffffff0 },
@@ -77,9 +185,19 @@ Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
{ PHY_ID_BCM54616S, 0xfffffff0 },
{ PHY_ID_BCM5464, 0xfffffff0 },
{ PHY_ID_BCM5481, 0xfffffff0 },
++ { PHY_ID_BCM54810, 0xfffffff0 },
+ { PHY_ID_BCM5482, 0xfffffff0 },
+ { PHY_ID_BCM50610, 0xfffffff0 },
+ { PHY_ID_BCM50610M, 0xfffffff0 },
--- a/include/linux/brcmphy.h
+++ b/include/linux/brcmphy.h
-@@ -18,6 +18,7 @@
+@@ -13,11 +13,13 @@
+ #define PHY_ID_BCM5241 0x0143bc30
+ #define PHY_ID_BCMAC131 0x0143bc70
+ #define PHY_ID_BCM5481 0x0143bca0
++#define PHY_ID_BCM54810 0x03625d00
+ #define PHY_ID_BCM5482 0x0143bcb0
+ #define PHY_ID_BCM5411 0x00206070
#define PHY_ID_BCM5421 0x002060e0
#define PHY_ID_BCM5464 0x002060b0
#define PHY_ID_BCM5461 0x002060c0
@@ -87,7 +205,15 @@ Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
#define PHY_ID_BCM54616S 0x03625d10
#define PHY_ID_BCM57780 0x03625d90
-@@ -102,11 +103,12 @@
+@@ -52,6 +54,7 @@
+ #define PHY_BRCM_EXT_IBND_TX_ENABLE 0x00002000
+ #define PHY_BRCM_CLEAR_RGMII_MODE 0x00004000
+ #define PHY_BRCM_DIS_TXCRXC_NOENRGY 0x00008000
++
+ /* Broadcom BCM7xxx specific workarounds */
+ #define PHY_BRCM_7XXX_REV(x) (((x) >> 8) & 0xff)
+ #define PHY_BRCM_7XXX_PATCH(x) ((x) & 0xff)
+@@ -102,11 +105,14 @@
#define MII_BCM54XX_AUXCTL_ACTL_SMDSP_ENA 0x0800
#define MII_BCM54XX_AUXCTL_MISC_WREN 0x8000
@@ -95,9 +221,35 @@ Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
#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_READ_SHIFT 12
++#define MII_BCM54XX_AUXCTL_SHDWSEL_MISC_RGMII_SKEW_EN (1 << 8)
-#define MII_BCM54XX_AUXCTL_SHDWSEL_AUXCTL 0x0000
+#define MII_BCM54XX_AUXCTL_SHDWSEL_MASK 0x0007
/*
* Broadcom LED source encodings. These are used in BCM5461, BCM5481,
+@@ -186,6 +192,12 @@
+ #define BCM5482_SSD_SGMII_SLAVE_EN 0x0002 /* Slave mode enable */
+ #define BCM5482_SSD_SGMII_SLAVE_AD 0x0001 /* Slave auto-detection */
+
++/* BCM54810 Registers */
++#define BCM54810_EXP_BROADREACH_LRE_MISC_CTL (MII_BCM54XX_EXP_SEL_ER + 0x90)
++#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)
++
+
+ /*****************************************************************************/
+ /* Fast Ethernet Transceiver definitions. */
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -77,7 +77,7 @@ config BROADCOM_PHY
+ select BCM_NET_PHYLIB
+ ---help---
+ Currently supports the BCM5411, BCM5421, BCM5461, BCM54616S, BCM5464,
+- BCM5481 and BCM5482 PHYs.
++ BCM5481, BCM54810 and BCM5482 PHYs.
+
+ config BCM_CYGNUS_PHY
+ tristate "Drivers for Broadcom Cygnus SoC internal PHY"
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