From c170848254972aea37bd6cc21276099eff822429 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Rafa=C5=82=20Mi=C5=82ecki?= Date: Sat, 28 Jan 2017 18:44:23 +0100 Subject: [PATCH] kernel: backport support for BCM54810 PHY MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Signed-off-by: Rafał Miłecki --- ...ick-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 6f6536bb1f..0aed5588fd 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 --- 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 + #include + #include +- ++#include + + #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 + 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 .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 { 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 #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 #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" -- 2.30.2