diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/701-net-0378-mii-Add-helpers-for-parsing-SGMII-auto-negotiation.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/701-net-0378-mii-Add-helpers-for-parsing-SGMII-auto-negotiation.patch | 105 |
1 files changed, 0 insertions, 105 deletions
diff --git a/target/linux/layerscape/patches-5.4/701-net-0378-mii-Add-helpers-for-parsing-SGMII-auto-negotiation.patch b/target/linux/layerscape/patches-5.4/701-net-0378-mii-Add-helpers-for-parsing-SGMII-auto-negotiation.patch deleted file mode 100644 index 3aeda2a057..0000000000 --- a/target/linux/layerscape/patches-5.4/701-net-0378-mii-Add-helpers-for-parsing-SGMII-auto-negotiation.patch +++ /dev/null @@ -1,105 +0,0 @@ -From 4f3ba90c37ec5aedd2227beb013bab59035fbb57 Mon Sep 17 00:00:00 2001 -From: Vladimir Oltean <vladimir.oltean@nxp.com> -Date: Mon, 30 Sep 2019 19:20:26 +0300 -Subject: [PATCH] mii: Add helpers for parsing SGMII auto-negotiation - -Typically a MAC PCS auto-configures itself after it receives the -negotiated copper-side link settings from the PHY, but some MAC devices -are more special and need manual interpretation of the SGMII AN result. - -In other cases, the PCS exposes the entire tx_config_reg base page as it -is transmitted on the wire during auto-negotiation, so it makes sense to -be able to decode the equivalent lp_advertised bit mask from the raw u16 -(of course, "lp" considering the PCS to be the local PHY). - -Therefore, add the bit definitions for the SGMII registers 4 and 5 -(local device ability, link partner ability), as well as a link_mode -conversion helper that can be used to feed the AN results into -phy_resolve_aneg_linkmode. - -Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com> ---- - include/linux/mii.h | 50 ++++++++++++++++++++++++++++++++++++++++++++++++ - include/uapi/linux/mii.h | 12 ++++++++++++ - 2 files changed, 62 insertions(+) - ---- a/include/linux/mii.h -+++ b/include/linux/mii.h -@@ -373,6 +373,56 @@ static inline u32 mii_lpa_to_ethtool_lpa - } - - /** -+ * mii_lpa_mod_linkmode_adv_sgmii -+ * @lp_advertising: pointer to destination link mode. -+ * @lpa: value of the MII_LPA register -+ * -+ * A small helper function that translates MII_LPA bits to -+ * linkmode advertisement settings for SGMII. -+ * Leaves other bits unchanged. -+ */ -+static inline void -+mii_lpa_mod_linkmode_lpa_sgmii(unsigned long *lp_advertising, u32 lpa) -+{ -+ u32 speed_duplex = lpa & LPA_SGMII_DPX_SPD_MASK; -+ -+ linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT, lp_advertising, -+ speed_duplex == LPA_SGMII_1000HALF); -+ -+ linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT, lp_advertising, -+ speed_duplex == LPA_SGMII_1000FULL); -+ -+ linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT, lp_advertising, -+ speed_duplex == LPA_SGMII_100HALF); -+ -+ linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT, lp_advertising, -+ speed_duplex == LPA_SGMII_100FULL); -+ -+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT, lp_advertising, -+ speed_duplex == LPA_SGMII_10HALF); -+ -+ linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT, lp_advertising, -+ speed_duplex == LPA_SGMII_10FULL); -+} -+ -+/** -+ * mii_lpa_to_linkmode_adv_sgmii -+ * @advertising: pointer to destination link mode. -+ * @lpa: value of the MII_LPA register -+ * -+ * A small helper function that translates MII_ADVERTISE bits -+ * to linkmode advertisement settings when in SGMII mode. -+ * Clears the old value of advertising. -+ */ -+static inline void mii_lpa_to_linkmode_lpa_sgmii(unsigned long *lp_advertising, -+ u32 lpa) -+{ -+ linkmode_zero(lp_advertising); -+ -+ mii_lpa_mod_linkmode_lpa_sgmii(lp_advertising, lpa); -+} -+ -+/** - * mii_adv_mod_linkmode_adv_t - * @advertising:pointer to destination link mode. - * @adv: value of the MII_ADVERTISE register ---- a/include/uapi/linux/mii.h -+++ b/include/uapi/linux/mii.h -@@ -131,6 +131,18 @@ - #define NWAYTEST_LOOPBACK 0x0100 /* Enable loopback for N-way */ - #define NWAYTEST_RESV2 0xfe00 /* Unused... */ - -+/* MAC and PHY tx_config_Reg[15:0] for SGMII in-band auto-negotiation.*/ -+#define ADVERTISE_SGMII 0x0001 /* MAC can do SGMII */ -+#define LPA_SGMII 0x0001 /* PHY can do SGMII */ -+#define LPA_SGMII_DPX_SPD_MASK 0x1C00 /* SGMII duplex and speed bits */ -+#define LPA_SGMII_10HALF 0x0000 /* Can do 10mbps half-duplex */ -+#define LPA_SGMII_10FULL 0x1000 /* Can do 10mbps full-duplex */ -+#define LPA_SGMII_100HALF 0x0400 /* Can do 100mbps half-duplex */ -+#define LPA_SGMII_100FULL 0x1400 /* Can do 100mbps full-duplex */ -+#define LPA_SGMII_1000HALF 0x0800 /* Can do 1000mbps half-duplex */ -+#define LPA_SGMII_1000FULL 0x1800 /* Can do 1000mbps full-duplex */ -+#define LPA_SGMII_LINK 0x8000 /* PHY link with copper-side partner */ -+ - /* 1000BASE-T Control register */ - #define ADVERTISE_1000FULL 0x0200 /* Advertise 1000BASE-T full duplex */ - #define ADVERTISE_1000HALF 0x0100 /* Advertise 1000BASE-T half duplex */ |