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received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: QTXGtstYiOAA75sMzY0w0u8HqJt7fJAAahe5GzDWBVVASSTHYUNS4DUHF1PjrpxrtkxDbGo00FucnNeY3aIFwr8wV/N6YsXw5SrbsZHAy8ZINiMammnbkzOlEjCLs+qAP7tqIkafj0sUTk20IepsP2PGzkGJ1b0n0dgG4W0nr/qRUt/EiPCSedDpQ+wv54iwbW9Q6uf1c4HWVA+ZwiIIUpLTRP/sdAXJolgNleZJLCMZCG2mBqBZm8bGWjooSNDMAbuMYhDK05J4HBPBxK8cJSET/dKmp+RQqg1j6uVJGLKR+vwymzYiaxMiJkmw4fNy8yUYhMUMZdwzaOIm50WefCmHZLEEpCidJTteGC/LaEjgtf8lwOo+yhmsg98wsLpOkOrbu+WJ+7cv9MNB5JER3zxVIENeFQMDA+TkdzJ+i3E= Content-Type: text/plain; charset="iso-8859-1" Content-ID: <4001154895E3D34EAE3DFD7FEE91CD4E@eurprd04.prod.outlook.com> Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 40a23acd-685b-4b40-004c-08d72195c8b2 X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Aug 2019 15:32:29.8456 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-userprincipalname: GjX8u/Z15SxoXCJTwoLMOgFynwgQGPoLNIFozVH4YI8omqvz/zPh0xfdlu9i1g+3pDoFvKmzADyReL1xoLWBdU7GdtJCTVNdlqsLd3WXgcU= X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM6PR0402MB3624 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org BASE-T1 is a category of Ethernet PHYs. They use a single copper pair for transmission. This patch add basic support for this category of PHYs. It coveres the discovery of abilities and basic configuration. It includes setting fixed speed and enabling auto-negotiation. BASE-T1 devices should always Clause-45 managed. Therefore, this patch extends phy-c45.c. While for some functions like auto-neogtiation different registers are used, the layout of these registers is the same for the used fields. Thus, much of the logic of basic Clause-45 devices can be reused. Signed-off-by: Christian Herber --- drivers/net/phy/phy-c45.c | 113 +++++++++++++++++++++++++++++++---- drivers/net/phy/phy-core.c | 4 +- include/uapi/linux/ethtool.h | 2 + include/uapi/linux/mdio.h | 21 +++++++ 4 files changed, 129 insertions(+), 11 deletions(-) diff --git a/drivers/net/phy/phy-c45.c b/drivers/net/phy/phy-c45.c index b9d4145781ca..9ff0b8c785de 100644 --- a/drivers/net/phy/phy-c45.c +++ b/drivers/net/phy/phy-c45.c @@ -8,13 +8,23 @@ #include #include =20 +#define IS_100BASET1(phy) (linkmode_test_bit( \ + ETHTOOL_LINK_MODE_100baseT1_Full_BIT, \ + (phy)->supported)) +#define IS_1000BASET1(phy) (linkmode_test_bit( \ + ETHTOOL_LINK_MODE_1000baseT1_Full_BIT, \ + (phy)->supported)) + +static u32 get_aneg_ctrl(struct phy_device *phydev); +static u32 get_aneg_stat(struct phy_device *phydev); + /** * 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; + int ctrl1, ctrl2, base_t1_ctrl =3D 0, ret; =20 /* Half duplex is not supported */ if (phydev->duplex !=3D DUPLEX_FULL) @@ -28,6 +38,16 @@ int genphy_c45_pma_setup_forced(struct phy_device *phyde= v) if (ctrl2 < 0) return ctrl2; =20 + if (IS_100BASET1(phydev) || IS_1000BASET1(phydev)) { + base_t1_ctrl =3D phy_read_mmd(phydev, + MDIO_MMD_PMAPMD, + MDIO_PMA_BASET1CTRL); + if (base_t1_ctrl < 0) + return base_t1_ctrl; + + base_t1_ctrl &=3D ~(MDIO_PMA_BASET1CTRL_TYPE); + } + ctrl1 &=3D ~MDIO_CTRL1_SPEEDSEL; /* * PMA/PMD type selection is 1.7.5:0 not 1.7.3:0. See 45.2.1.6.1 @@ -41,12 +61,21 @@ int genphy_c45_pma_setup_forced(struct phy_device *phyd= ev) break; case SPEED_100: ctrl1 |=3D MDIO_PMA_CTRL1_SPEED100; - ctrl2 |=3D MDIO_PMA_CTRL2_100BTX; + if (IS_100BASET1(phydev)) { + ctrl2 |=3D MDIO_PMA_CTRL2_BT1; + base_t1_ctrl |=3D MDIO_PMA_BASET1CTRL_TYPE_100BT1; + } else { + ctrl2 |=3D MDIO_PMA_CTRL2_100BTX; + } break; case SPEED_1000: ctrl1 |=3D MDIO_PMA_CTRL1_SPEED1000; - /* Assume 1000base-T */ - ctrl2 |=3D MDIO_PMA_CTRL2_1000BT; + if (IS_1000BASET1(phydev)) { + ctrl2 |=3D MDIO_PMA_CTRL2_BT1; + base_t1_ctrl |=3D MDIO_PMA_BASET1CTRL_TYPE_1000BT1; + } else { + ctrl2 |=3D MDIO_PMA_CTRL2_1000BT; + } break; case SPEED_2500: ctrl1 |=3D MDIO_CTRL1_SPEED2_5G; @@ -75,6 +104,14 @@ int genphy_c45_pma_setup_forced(struct phy_device *phyd= ev) if (ret < 0) return ret; =20 + if (IS_100BASET1(phydev) || IS_1000BASET1(phydev)) { + ret =3D phy_write_mmd(phydev, + MDIO_MMD_PMAPMD, + MDIO_PMA_BASET1CTRL, + base_t1_ctrl); + if (ret < 0) + return ret; + } return genphy_c45_an_disable_aneg(phydev); } EXPORT_SYMBOL_GPL(genphy_c45_pma_setup_forced); @@ -135,8 +172,7 @@ EXPORT_SYMBOL_GPL(genphy_c45_an_config_aneg); */ int genphy_c45_an_disable_aneg(struct phy_device *phydev) { - - return phy_clear_bits_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1, + return phy_clear_bits_mmd(phydev, MDIO_MMD_AN, get_aneg_ctrl(phydev), MDIO_AN_CTRL1_ENABLE | MDIO_AN_CTRL1_RESTART); } EXPORT_SYMBOL_GPL(genphy_c45_an_disable_aneg); @@ -151,7 +187,7 @@ EXPORT_SYMBOL_GPL(genphy_c45_an_disable_aneg); */ int genphy_c45_restart_aneg(struct phy_device *phydev) { - return phy_set_bits_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1, + return phy_set_bits_mmd(phydev, MDIO_MMD_AN, get_aneg_ctrl(phydev), MDIO_AN_CTRL1_ENABLE | MDIO_AN_CTRL1_RESTART); } EXPORT_SYMBOL_GPL(genphy_c45_restart_aneg); @@ -171,7 +207,7 @@ int genphy_c45_check_and_restart_aneg(struct phy_device= *phydev, bool restart) =20 if (!restart) { /* Configure and restart aneg if it wasn't set before */ - ret =3D phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_CTRL1); + ret =3D phy_read_mmd(phydev, MDIO_MMD_AN, get_aneg_ctrl(phydev)); if (ret < 0) return ret; =20 @@ -199,7 +235,7 @@ EXPORT_SYMBOL_GPL(genphy_c45_check_and_restart_aneg); */ int genphy_c45_aneg_done(struct phy_device *phydev) { - int val =3D phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); + int val =3D phy_read_mmd(phydev, MDIO_MMD_AN, get_aneg_stat(phydev)); =20 return val < 0 ? val : val & MDIO_AN_STAT1_COMPLETE ? 1 : 0; } @@ -385,7 +421,9 @@ EXPORT_SYMBOL_GPL(genphy_c45_read_mdix); * PMA Extended Abilities (1.11) register, indicating 1000BASET an 10G rel= ated * modes. If bit 1.11.14 is set, then the list is also extended with the m= odes * in the 2.5G/5G PMA Extended register (1.21), indicating if 2.5GBASET an= d - * 5GBASET are supported. + * 5GBASET are supported. If bit 1.11.11 is set, then the list is also ext= ended + * with the modes in the BASE-T1 PMA Extended register (1.18), indicating = if + * 10/100/1000BASET-1 are supported. */ int genphy_c45_pma_read_abilities(struct phy_device *phydev) { @@ -470,6 +508,29 @@ int genphy_c45_pma_read_abilities(struct phy_device *p= hydev) phydev->supported, val & MDIO_PMA_NG_EXTABLE_5GBT); } + + if (val & MDIO_PMA_EXTABLE_BASET1) { + val =3D phy_read_mmd(phydev, MDIO_MMD_PMAPMD, + MDIO_PMA_BASET1_EXTABLE); + if (val < 0) + return val; + + linkmode_mod_bit(ETHTOOL_LINK_MODE_100baseT1_Full_BIT, + phydev->supported, + val & MDIO_PMA_BASET1_EXTABLE_100BT1); + + linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT1_Full_BIT, + phydev->supported, + val & MDIO_PMA_BASET1_EXTABLE_1000BT1); + + linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1L_Full_BIT, + phydev->supported, + val & MDIO_PMA_BASET1_EXTABLE_10BT1L); + + linkmode_mod_bit(ETHTOOL_LINK_MODE_10baseT1S_Full_BIT, + phydev->supported, + val & MDIO_PMA_BASET1_EXTABLE_10BT1S); + } } =20 return 0; @@ -509,6 +570,38 @@ int genphy_c45_read_status(struct phy_device *phydev) } EXPORT_SYMBOL_GPL(genphy_c45_read_status); =20 +/** + * get_aneg_ctrl - Get the register address for auto- + * negotiation control register + * @phydev: target phy_device struct + * + */ +static u32 get_aneg_ctrl(struct phy_device *phydev) +{ + u32 ctrl =3D MDIO_CTRL1; + + if (IS_100BASET1(phydev) || IS_1000BASET1(phydev)) + ctrl =3D MDIO_AN_BT1_CTRL; + + return ctrl; +} + +/** + * get_aneg_ctrl - Get the register address for auto- + * negotiation status register + * @phydev: target phy_device struct + * + */ +static u32 get_aneg_stat(struct phy_device *phydev) +{ + u32 stat =3D MDIO_STAT1; + + if (IS_100BASET1(phydev) || IS_1000BASET1(phydev)) + stat =3D MDIO_AN_BT1_STAT; + + return stat; +} + /* The gen10g_* functions are the old Clause 45 stub */ =20 int gen10g_config_aneg(struct phy_device *phydev) diff --git a/drivers/net/phy/phy-core.c b/drivers/net/phy/phy-core.c index 369903d9b6ec..b50576f7709a 100644 --- a/drivers/net/phy/phy-core.c +++ b/drivers/net/phy/phy-core.c @@ -8,7 +8,7 @@ =20 const char *phy_speed_to_str(int speed) { - BUILD_BUG_ON_MSG(__ETHTOOL_LINK_MODE_MASK_NBITS !=3D 69, + BUILD_BUG_ON_MSG(__ETHTOOL_LINK_MODE_MASK_NBITS !=3D 71, "Enum ethtool_link_mode_bit_indices and phylib are out of sync. " "If a speed or mode has been added please update phy_speed_to_str " "and the PHY settings array.\n"); @@ -140,6 +140,8 @@ static const struct phy_setting settings[] =3D { /* 10M */ PHY_SETTING( 10, FULL, 10baseT_Full ), PHY_SETTING( 10, HALF, 10baseT_Half ), + PHY_SETTING( 10, FULL, 10baseT1L_Full ), + PHY_SETTING( 10, FULL, 10baseT1S_Full ), }; #undef PHY_SETTING =20 diff --git a/include/uapi/linux/ethtool.h b/include/uapi/linux/ethtool.h index dd06302aa93e..e429cc8da31a 100644 --- a/include/uapi/linux/ethtool.h +++ b/include/uapi/linux/ethtool.h @@ -1485,6 +1485,8 @@ enum ethtool_link_mode_bit_indices { ETHTOOL_LINK_MODE_200000baseCR4_Full_BIT =3D 66, ETHTOOL_LINK_MODE_100baseT1_Full_BIT =3D 67, ETHTOOL_LINK_MODE_1000baseT1_Full_BIT =3D 68, + ETHTOOL_LINK_MODE_10baseT1L_Full_BIT =3D 69, + ETHTOOL_LINK_MODE_10baseT1S_Full_BIT =3D 70, =20 /* must be last entry */ __ETHTOOL_LINK_MODE_MASK_NBITS diff --git a/include/uapi/linux/mdio.h b/include/uapi/linux/mdio.h index 0a552061ff1c..6fd5ff632b8e 100644 --- a/include/uapi/linux/mdio.h +++ b/include/uapi/linux/mdio.h @@ -43,6 +43,7 @@ #define MDIO_PKGID1 14 /* Package identifier */ #define MDIO_PKGID2 15 #define MDIO_AN_ADVERTISE 16 /* AN advertising (base page) */ +#define MDIO_PMA_BASET1_EXTABLE 18 /* BASE-T1 PMA/PMD extended ability */ #define MDIO_AN_LPA 19 /* AN LP abilities (base page) */ #define MDIO_PCS_EEE_ABLE 20 /* EEE Capability register */ #define MDIO_PMA_NG_EXTABLE 21 /* 2.5G/5G PMA/PMD extended ability */ @@ -57,11 +58,16 @@ #define MDIO_PMA_10GBT_SNR 133 /* 10GBASE-T SNR margin, lane A. * Lanes B-D are numbered 134-136. */ #define MDIO_PMA_10GBR_FECABLE 170 /* 10GBASE-R FEC ability */ +#define MDIO_PMA_BASET1CTRL 2100 /* BASE-T1 PMA/PMD control */ #define MDIO_PCS_10GBX_STAT1 24 /* 10GBASE-X PCS status 1 */ #define MDIO_PCS_10GBRT_STAT1 32 /* 10GBASE-R/-T PCS status 1 */ #define MDIO_PCS_10GBRT_STAT2 33 /* 10GBASE-R/-T PCS status 2 */ #define MDIO_AN_10GBT_CTRL 32 /* 10GBASE-T auto-negotiation control */ #define MDIO_AN_10GBT_STAT 33 /* 10GBASE-T auto-negotiation status */ +#define MDIO_AN_BT1_CTRL 512 /* BASE-T1 auto-negotiation control */ +#define MDIO_AN_BT1_STAT 513 /* BASE-T1 auto-negotiation status */ +#define MDIO_AN_10BT1_CTRL 526 /* 10BASE-T1 auto-negotiation control */ +#define MDIO_AN_10BT1_STAT 527 /* 10BASE-T1 auto-negotiation status */ =20 /* LASI (Link Alarm Status Interrupt) registers, defined by XENPAK MSA. */ #define MDIO_PMA_LASI_RXCTRL 0x9000 /* RX_ALARM control */ @@ -151,6 +157,7 @@ #define MDIO_PMA_CTRL2_100BTX 0x000e /* 100BASE-TX type */ #define MDIO_PMA_CTRL2_10BT 0x000f /* 10BASE-T type */ #define MDIO_PMA_CTRL2_2_5GBT 0x0030 /* 2.5GBaseT type */ +#define MDIO_PMA_CTRL2_BT1 0x003D /* BASE-T1 type */ #define MDIO_PMA_CTRL2_5GBT 0x0031 /* 5GBaseT type */ #define MDIO_PCS_CTRL2_TYPE 0x0003 /* PCS type selection */ #define MDIO_PCS_CTRL2_10GBR 0x0000 /* 10GBASE-R type */ @@ -205,8 +212,16 @@ #define MDIO_PMA_EXTABLE_1000BKX 0x0040 /* 1000BASE-KX ability */ #define MDIO_PMA_EXTABLE_100BTX 0x0080 /* 100BASE-TX ability */ #define MDIO_PMA_EXTABLE_10BT 0x0100 /* 10BASE-T ability */ +#define MDIO_PMA_EXTABLE_BASET1 0x0800 /* BASE-T1 ability */ #define MDIO_PMA_EXTABLE_NBT 0x4000 /* 2.5/5GBASE-T ability */ =20 +/* PMA BASE-T1 control register. */ +#define MDIO_PMA_BASET1CTRL_TYPE 0x000f /* PMA/PMD BASE-T1 type se= l. */ +#define MDIO_PMA_BASET1CTRL_TYPE_100BT1 0x0000 /* 100BASE-T1 */ +#define MDIO_PMA_BASET1CTRL_TYPE_1000BT1 0x0001 /* 1000BASE-T1 */ +#define MDIO_PMA_BASET1CTRL_TYPE_10BT1L 0x0002 /* 10BASE-T1L */ +#define MDIO_PMA_BASET1CTRL_TYPE_10BT1S 0x0003 /* 10BASE-T1S */ + /* PHY XGXS lane state register. */ #define MDIO_PHYXS_LNSTAT_SYNC0 0x0001 #define MDIO_PHYXS_LNSTAT_SYNC1 0x0002 @@ -281,6 +296,12 @@ #define MDIO_PMA_NG_EXTABLE_2_5GBT 0x0001 /* 2.5GBASET ability */ #define MDIO_PMA_NG_EXTABLE_5GBT 0x0002 /* 5GBASET ability */ =20 +/* BASE-T1 Extended abilities register. */ +#define MDIO_PMA_BASET1_EXTABLE_100BT1 0x0001 /* 100BASE-T1 ability */ +#define MDIO_PMA_BASET1_EXTABLE_1000BT1 0x0002 /* 1000BASE-T1 ability */ +#define MDIO_PMA_BASET1_EXTABLE_10BT1L 0x0004 /* 10BASE-T1L ability */ +#define MDIO_PMA_BASET1_EXTABLE_10BT1S 0x0008 /* 10BASE-T1S ability */ + /* LASI RX_ALARM control/status registers. */ #define MDIO_PMA_LASI_RX_PHYXSLFLT 0x0001 /* PHY XS RX local fault */ #define MDIO_PMA_LASI_RX_PCSLFLT 0x0008 /* PCS RX local fault */ --=20 2.17.1