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Diffstat (limited to 'target/linux/mvebu/patches-4.9/407-net-phy-add-802.3-clause-45-support-to-phylib.patch')
-rw-r--r--target/linux/mvebu/patches-4.9/407-net-phy-add-802.3-clause-45-support-to-phylib.patch323
1 files changed, 0 insertions, 323 deletions
diff --git a/target/linux/mvebu/patches-4.9/407-net-phy-add-802.3-clause-45-support-to-phylib.patch b/target/linux/mvebu/patches-4.9/407-net-phy-add-802.3-clause-45-support-to-phylib.patch
deleted file mode 100644
index fcf73e4294..0000000000
--- a/target/linux/mvebu/patches-4.9/407-net-phy-add-802.3-clause-45-support-to-phylib.patch
+++ /dev/null
@@ -1,323 +0,0 @@
-From: Russell King <rmk+kernel@armlinux.org.uk>
-Date: Thu, 29 Dec 2016 11:03:09 +0000
-Subject: [PATCH] net: phy: add 802.3 clause 45 support to phylib
-
-Add generic helpers for 802.3 clause 45 PHYs for >= 10Gbps support.
-
-Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
----
- create mode 100644 drivers/net/phy/phy-c45.c
-
---- a/drivers/net/phy/Makefile
-+++ b/drivers/net/phy/Makefile
-@@ -1,7 +1,7 @@
- # Makefile for Linux PHY drivers and MDIO bus drivers
-
- libphy-y := phy.o phy_device.o mdio_bus.o mdio_device.o \
-- phy-core.o
-+ phy-c45.o phy-core.o
- libphy-$(CONFIG_SWPHY) += swphy.o
-
- obj-$(CONFIG_MDIO_BOARDINFO) += mdio-boardinfo.o
---- /dev/null
-+++ b/drivers/net/phy/phy-c45.c
-@@ -0,0 +1,234 @@
-+/*
-+ * Clause 45 PHY support
-+ */
-+#include <linux/ethtool.h>
-+#include <linux/export.h>
-+#include <linux/mdio.h>
-+#include <linux/mii.h>
-+#include <linux/phy.h>
-+
-+/**
-+ * genphy_c45_setup_forced - configures a forced speed
-+ * @phydev: target phy_device struct
-+ */
-+int genphy_c45_pma_setup_forced(struct phy_device *phydev)
-+{
-+ int ctrl1, ctrl2, ret;
-+
-+ /* Half duplex is not supported */
-+ if (phydev->duplex != DUPLEX_FULL)
-+ return -EINVAL;
-+
-+ ctrl1 = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1);
-+ if (ctrl1 < 0)
-+ return ctrl1;
-+
-+ ctrl2 = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL2);
-+ if (ctrl2 < 0)
-+ return ctrl2;
-+
-+ ctrl1 &= ~MDIO_CTRL1_SPEEDSEL;
-+ /* PMA/PMD type selection is 1.7.5:0 not 1.7.3:0. See 45.2.1.6.1. */
-+ ctrl2 &= ~(MDIO_PMA_CTRL2_TYPE | 0x30);
-+
-+ switch (phydev->speed) {
-+ case SPEED_10:
-+ ctrl2 |= MDIO_PMA_CTRL2_10BT;
-+ break;
-+ case SPEED_100:
-+ ctrl1 |= MDIO_PMA_CTRL1_SPEED100;
-+ ctrl2 |= MDIO_PMA_CTRL2_100BTX;
-+ break;
-+ case SPEED_1000:
-+ ctrl1 |= MDIO_PMA_CTRL1_SPEED1000;
-+ /* Assume 1000base-T */
-+ ctrl2 |= MDIO_PMA_CTRL2_1000BT;
-+ break;
-+ case SPEED_10000:
-+ ctrl1 |= MDIO_CTRL1_SPEED10G;
-+ /* Assume 10Gbase-T */
-+ ctrl2 |= MDIO_PMA_CTRL2_10GBT;
-+ break;
-+ default:
-+ return -EINVAL;
-+ }
-+
-+ ret = phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1, ctrl1);
-+ if (ret < 0)
-+ return ret;
-+
-+ return phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL2, ctrl2);
-+}
-+EXPORT_SYMBOL_GPL(genphy_c45_pma_setup_forced);
-+
-+/**
-+ * genphy_c45_an_disable_aneg - disable auto-negotiation
-+ * @phydev: target phy_device struct
-+ *
-+ * Disable auto-negotiation in the Clause 45 PHY. The link parameters
-+ * parameters are controlled through the PMA/PMD MMD registers.
-+ *
-+ * Returns zero on success, negative errno code on failure.
-+ */
-+int genphy_c45_an_disable_aneg(struct phy_device *phydev)
-+{
-+ int val;
-+
-+ val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1);
-+ if (val < 0)
-+ return val;
-+
-+ val &= ~(MDIO_AN_CTRL1_ENABLE | MDIO_AN_CTRL1_RESTART);
-+
-+ return phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1, val);
-+}
-+EXPORT_SYMBOL_GPL(genphy_c45_an_disable_aneg);
-+
-+/**
-+ * genphy_c45_restart_aneg - Enable and restart auto-negotiation
-+ * @phydev: target phy_device struct
-+ *
-+ * This assumes that the auto-negotiation MMD is present.
-+ *
-+ * Enable and restart auto-negotiation.
-+ */
-+int genphy_c45_restart_aneg(struct phy_device *phydev)
-+{
-+ int val;
-+
-+ val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1);
-+ if (val < 0)
-+ return val;
-+
-+ val |= MDIO_AN_CTRL1_ENABLE | MDIO_AN_CTRL1_RESTART;
-+
-+ return phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1, val);
-+}
-+EXPORT_SYMBOL_GPL(genphy_c45_restart_aneg);
-+
-+/**
-+ * genphy_c45_aneg_done - return auto-negotiation complete status
-+ * @phydev: target phy_device struct
-+ *
-+ * This assumes that the auto-negotiation MMD is present.
-+ *
-+ * Reads the status register from the auto-negotiation MMD, returning:
-+ * - positive if auto-negotiation is complete
-+ * - negative errno code on error
-+ * - zero otherwise
-+ */
-+int genphy_c45_aneg_done(struct phy_device *phydev)
-+{
-+ int val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
-+
-+ return val < 0 ? val : val & MDIO_AN_STAT1_COMPLETE ? 1 : 0;
-+}
-+EXPORT_SYMBOL_GPL(genphy_c45_aneg_done);
-+
-+/**
-+ * genphy_c45_read_link - read the overall link status from the MMDs
-+ * @phydev: target phy_device struct
-+ * @mmd_mask: MMDs to read status from
-+ *
-+ * Read the link status from the specified MMDs, and if they all indicate
-+ * that the link is up, return positive. If an error is encountered,
-+ * a negative errno will be returned, otherwise zero.
-+ */
-+int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask)
-+{
-+ int val, devad;
-+ bool link = true;
-+
-+ while (mmd_mask) {
-+ devad = __ffs(mmd_mask);
-+ mmd_mask &= ~BIT(devad);
-+
-+ val = phy_read_mmd(phydev, devad, MDIO_STAT1);
-+ if (val < 0)
-+ return val;
-+
-+ /* Read twice because link state is latched and a
-+ * read moves the current state into the register
-+ */
-+ val = phy_read_mmd(phydev, devad, MDIO_STAT1);
-+ if (val < 0)
-+ return val;
-+
-+ if (!(val & MDIO_STAT1_LSTATUS))
-+ link = false;
-+ }
-+
-+ return link;
-+}
-+EXPORT_SYMBOL_GPL(genphy_c45_read_link);
-+
-+/**
-+ * genphy_c45_read_lpa - read the link partner advertisment and pause
-+ * @phydev: target phy_device struct
-+ *
-+ * Read the Clause 45 defined base (7.19) and 10G (7.33) status registers,
-+ * filling in the link partner advertisment, pause and asym_pause members
-+ * in @phydev. This assumes that the auto-negotiation MMD is present, and
-+ * the backplane bit (7.48.0) is clear. Clause 45 PHY drivers are expected
-+ * to fill in the remainder of the link partner advert from vendor registers.
-+ */
-+int genphy_c45_read_lpa(struct phy_device *phydev)
-+{
-+ int val;
-+
-+ /* Read the link partner's base page advertisment */
-+ val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_LPA);
-+ if (val < 0)
-+ return val;
-+
-+ phydev->lp_advertising = mii_lpa_to_ethtool_lpa_t(val);
-+ phydev->pause = val & LPA_PAUSE_CAP ? 1 : 0;
-+ phydev->asym_pause = val & LPA_PAUSE_ASYM ? 1 : 0;
-+
-+ /* Read the link partner's 10G advertisment */
-+ val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_10GBT_STAT);
-+ if (val < 0)
-+ return val;
-+
-+ if (val & MDIO_AN_10GBT_STAT_LP10G)
-+ phydev->lp_advertising |= ADVERTISED_10000baseT_Full;
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL_GPL(genphy_c45_read_lpa);
-+
-+/**
-+ * genphy_c45_read_pma - read link speed etc from PMA
-+ * @phydev: target phy_device struct
-+ */
-+int genphy_c45_read_pma(struct phy_device *phydev)
-+{
-+ int val;
-+
-+ val = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1);
-+ if (val < 0)
-+ return val;
-+
-+ switch (val & MDIO_CTRL1_SPEEDSEL) {
-+ case 0:
-+ phydev->speed = SPEED_10;
-+ break;
-+ case MDIO_PMA_CTRL1_SPEED100:
-+ phydev->speed = SPEED_100;
-+ break;
-+ case MDIO_PMA_CTRL1_SPEED1000:
-+ phydev->speed = SPEED_1000;
-+ break;
-+ case MDIO_CTRL1_SPEED10G:
-+ phydev->speed = SPEED_10000;
-+ break;
-+ default:
-+ phydev->speed = SPEED_UNKNOWN;
-+ break;
-+ }
-+
-+ phydev->duplex = DUPLEX_FULL;
-+
-+ return 0;
-+}
-+EXPORT_SYMBOL_GPL(genphy_c45_read_pma);
---- a/drivers/net/phy/phy_device.c
-+++ b/drivers/net/phy/phy_device.c
-@@ -1452,27 +1452,19 @@ EXPORT_SYMBOL(genphy_read_status);
-
- static int gen10g_read_status(struct phy_device *phydev)
- {
-- int devad, reg;
- u32 mmd_mask = phydev->c45_ids.devices_in_package;
--
-- phydev->link = 1;
-+ int ret;
-
- /* For now just lie and say it's 10G all the time */
- phydev->speed = SPEED_10000;
- phydev->duplex = DUPLEX_FULL;
-
-- for (devad = 0; mmd_mask; devad++, mmd_mask = mmd_mask >> 1) {
-- if (!(mmd_mask & 1))
-- continue;
--
-- /* Read twice because link state is latched and a
-- * read moves the current state into the register
-- */
-- phy_read_mmd(phydev, devad, MDIO_STAT1);
-- reg = phy_read_mmd(phydev, devad, MDIO_STAT1);
-- if (reg < 0 || !(reg & MDIO_STAT1_LSTATUS))
-- phydev->link = 0;
-- }
-+ /* Avoid reading the vendor MMDs */
-+ mmd_mask &= ~(BIT(MDIO_MMD_VEND1) | BIT(MDIO_MMD_VEND2));
-+
-+ ret = genphy_c45_read_link(phydev, mmd_mask);
-+
-+ phydev->link = ret > 0 ? 1 : 0;
-
- return 0;
- }
---- a/include/linux/phy.h
-+++ b/include/linux/phy.h
-@@ -817,6 +817,8 @@ static inline const char *phydev_name(co
- void phy_attached_print(struct phy_device *phydev, const char *fmt, ...)
- __printf(2, 3);
- void phy_attached_info(struct phy_device *phydev);
-+
-+/* Clause 22 PHY */
- int genphy_config_init(struct phy_device *phydev);
- int genphy_setup_forced(struct phy_device *phydev);
- int genphy_restart_aneg(struct phy_device *phydev);
-@@ -831,6 +833,16 @@ static inline int genphy_no_soft_reset(s
- {
- return 0;
- }
-+
-+/* Clause 45 PHY */
-+int genphy_c45_restart_aneg(struct phy_device *phydev);
-+int genphy_c45_aneg_done(struct phy_device *phydev);
-+int genphy_c45_read_link(struct phy_device *phydev, u32 mmd_mask);
-+int genphy_c45_read_lpa(struct phy_device *phydev);
-+int genphy_c45_read_pma(struct phy_device *phydev);
-+int genphy_c45_pma_setup_forced(struct phy_device *phydev);
-+int genphy_c45_an_disable_aneg(struct phy_device *phydev);
-+
- void phy_driver_unregister(struct phy_driver *drv);
- void phy_drivers_unregister(struct phy_driver *drv, int n);
- int phy_driver_register(struct phy_driver *new_driver, struct module *owner);
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-02 12:30:32 +0000