diff options
Diffstat (limited to 'drivers/net/phy/intel-xway.c')
| -rw-r--r-- | drivers/net/phy/intel-xway.c | 376 |
1 files changed, 376 insertions, 0 deletions
diff --git a/drivers/net/phy/intel-xway.c b/drivers/net/phy/intel-xway.c new file mode 100644 index 000000000..c300ab558 --- /dev/null +++ b/drivers/net/phy/intel-xway.c @@ -0,0 +1,376 @@ +/* + * Copyright (C) 2012 Daniel Schwierzeck <daniel.schwierzeck@googlemail.com> + * Copyright (C) 2016 Hauke Mehrtens <hauke@hauke-m.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include <linux/mdio.h> +#include <linux/module.h> +#include <linux/phy.h> +#include <linux/of.h> + +#define XWAY_MDIO_IMASK 0x19 /* interrupt mask */ +#define XWAY_MDIO_ISTAT 0x1A /* interrupt status */ + +#define XWAY_MDIO_INIT_WOL BIT(15) /* Wake-On-LAN */ +#define XWAY_MDIO_INIT_MSRE BIT(14) +#define XWAY_MDIO_INIT_NPRX BIT(13) +#define XWAY_MDIO_INIT_NPTX BIT(12) +#define XWAY_MDIO_INIT_ANE BIT(11) /* Auto-Neg error */ +#define XWAY_MDIO_INIT_ANC BIT(10) /* Auto-Neg complete */ +#define XWAY_MDIO_INIT_ADSC BIT(5) /* Link auto-downspeed detect */ +#define XWAY_MDIO_INIT_MPIPC BIT(4) +#define XWAY_MDIO_INIT_MDIXC BIT(3) +#define XWAY_MDIO_INIT_DXMC BIT(2) /* Duplex mode change */ +#define XWAY_MDIO_INIT_LSPC BIT(1) /* Link speed change */ +#define XWAY_MDIO_INIT_LSTC BIT(0) /* Link state change */ +#define XWAY_MDIO_INIT_MASK (XWAY_MDIO_INIT_LSTC | \ + XWAY_MDIO_INIT_ADSC) + +#define ADVERTISED_MPD BIT(10) /* Multi-port device */ + +/* LED Configuration */ +#define XWAY_MMD_LEDCH 0x01E0 +/* Inverse of SCAN Function */ +#define XWAY_MMD_LEDCH_NACS_NONE 0x0000 +#define XWAY_MMD_LEDCH_NACS_LINK 0x0001 +#define XWAY_MMD_LEDCH_NACS_PDOWN 0x0002 +#define XWAY_MMD_LEDCH_NACS_EEE 0x0003 +#define XWAY_MMD_LEDCH_NACS_ANEG 0x0004 +#define XWAY_MMD_LEDCH_NACS_ABIST 0x0005 +#define XWAY_MMD_LEDCH_NACS_CDIAG 0x0006 +#define XWAY_MMD_LEDCH_NACS_TEST 0x0007 +/* Slow Blink Frequency */ +#define XWAY_MMD_LEDCH_SBF_F02HZ 0x0000 +#define XWAY_MMD_LEDCH_SBF_F04HZ 0x0010 +#define XWAY_MMD_LEDCH_SBF_F08HZ 0x0020 +#define XWAY_MMD_LEDCH_SBF_F16HZ 0x0030 +/* Fast Blink Frequency */ +#define XWAY_MMD_LEDCH_FBF_F02HZ 0x0000 +#define XWAY_MMD_LEDCH_FBF_F04HZ 0x0040 +#define XWAY_MMD_LEDCH_FBF_F08HZ 0x0080 +#define XWAY_MMD_LEDCH_FBF_F16HZ 0x00C0 +/* LED Configuration */ +#define XWAY_MMD_LEDCL 0x01E1 +/* Complex Blinking Configuration */ +#define XWAY_MMD_LEDCH_CBLINK_NONE 0x0000 +#define XWAY_MMD_LEDCH_CBLINK_LINK 0x0001 +#define XWAY_MMD_LEDCH_CBLINK_PDOWN 0x0002 +#define XWAY_MMD_LEDCH_CBLINK_EEE 0x0003 +#define XWAY_MMD_LEDCH_CBLINK_ANEG 0x0004 +#define XWAY_MMD_LEDCH_CBLINK_ABIST 0x0005 +#define XWAY_MMD_LEDCH_CBLINK_CDIAG 0x0006 +#define XWAY_MMD_LEDCH_CBLINK_TEST 0x0007 +/* Complex SCAN Configuration */ +#define XWAY_MMD_LEDCH_SCAN_NONE 0x0000 +#define XWAY_MMD_LEDCH_SCAN_LINK 0x0010 +#define XWAY_MMD_LEDCH_SCAN_PDOWN 0x0020 +#define XWAY_MMD_LEDCH_SCAN_EEE 0x0030 +#define XWAY_MMD_LEDCH_SCAN_ANEG 0x0040 +#define XWAY_MMD_LEDCH_SCAN_ABIST 0x0050 +#define XWAY_MMD_LEDCH_SCAN_CDIAG 0x0060 +#define XWAY_MMD_LEDCH_SCAN_TEST 0x0070 +/* Configuration for LED Pin x */ +#define XWAY_MMD_LED0H 0x01E2 +/* Fast Blinking Configuration */ +#define XWAY_MMD_LEDxH_BLINKF_MASK 0x000F +#define XWAY_MMD_LEDxH_BLINKF_NONE 0x0000 +#define XWAY_MMD_LEDxH_BLINKF_LINK10 0x0001 +#define XWAY_MMD_LEDxH_BLINKF_LINK100 0x0002 +#define XWAY_MMD_LEDxH_BLINKF_LINK10X 0x0003 +#define XWAY_MMD_LEDxH_BLINKF_LINK1000 0x0004 +#define XWAY_MMD_LEDxH_BLINKF_LINK10_0 0x0005 +#define XWAY_MMD_LEDxH_BLINKF_LINK100X 0x0006 +#define XWAY_MMD_LEDxH_BLINKF_LINK10XX 0x0007 +#define XWAY_MMD_LEDxH_BLINKF_PDOWN 0x0008 +#define XWAY_MMD_LEDxH_BLINKF_EEE 0x0009 +#define XWAY_MMD_LEDxH_BLINKF_ANEG 0x000A +#define XWAY_MMD_LEDxH_BLINKF_ABIST 0x000B +#define XWAY_MMD_LEDxH_BLINKF_CDIAG 0x000C +/* Constant On Configuration */ +#define XWAY_MMD_LEDxH_CON_MASK 0x00F0 +#define XWAY_MMD_LEDxH_CON_NONE 0x0000 +#define XWAY_MMD_LEDxH_CON_LINK10 0x0010 +#define XWAY_MMD_LEDxH_CON_LINK100 0x0020 +#define XWAY_MMD_LEDxH_CON_LINK10X 0x0030 +#define XWAY_MMD_LEDxH_CON_LINK1000 0x0040 +#define XWAY_MMD_LEDxH_CON_LINK10_0 0x0050 +#define XWAY_MMD_LEDxH_CON_LINK100X 0x0060 +#define XWAY_MMD_LEDxH_CON_LINK10XX 0x0070 +#define XWAY_MMD_LEDxH_CON_PDOWN 0x0080 +#define XWAY_MMD_LEDxH_CON_EEE 0x0090 +#define XWAY_MMD_LEDxH_CON_ANEG 0x00A0 +#define XWAY_MMD_LEDxH_CON_ABIST 0x00B0 +#define XWAY_MMD_LEDxH_CON_CDIAG 0x00C0 +#define XWAY_MMD_LEDxH_CON_COPPER 0x00D0 +#define XWAY_MMD_LEDxH_CON_FIBER 0x00E0 +/* Configuration for LED Pin x */ +#define XWAY_MMD_LED0L 0x01E3 +/* Pulsing Configuration */ +#define XWAY_MMD_LEDxL_PULSE_MASK 0x000F +#define XWAY_MMD_LEDxL_PULSE_NONE 0x0000 +#define XWAY_MMD_LEDxL_PULSE_TXACT 0x0001 +#define XWAY_MMD_LEDxL_PULSE_RXACT 0x0002 +#define XWAY_MMD_LEDxL_PULSE_COL 0x0004 +/* Slow Blinking Configuration */ +#define XWAY_MMD_LEDxL_BLINKS_MASK 0x00F0 +#define XWAY_MMD_LEDxL_BLINKS_NONE 0x0000 +#define XWAY_MMD_LEDxL_BLINKS_LINK10 0x0010 +#define XWAY_MMD_LEDxL_BLINKS_LINK100 0x0020 +#define XWAY_MMD_LEDxL_BLINKS_LINK10X 0x0030 +#define XWAY_MMD_LEDxL_BLINKS_LINK1000 0x0040 +#define XWAY_MMD_LEDxL_BLINKS_LINK10_0 0x0050 +#define XWAY_MMD_LEDxL_BLINKS_LINK100X 0x0060 +#define XWAY_MMD_LEDxL_BLINKS_LINK10XX 0x0070 +#define XWAY_MMD_LEDxL_BLINKS_PDOWN 0x0080 +#define XWAY_MMD_LEDxL_BLINKS_EEE 0x0090 +#define XWAY_MMD_LEDxL_BLINKS_ANEG 0x00A0 +#define XWAY_MMD_LEDxL_BLINKS_ABIST 0x00B0 +#define XWAY_MMD_LEDxL_BLINKS_CDIAG 0x00C0 +#define XWAY_MMD_LED1H 0x01E4 +#define XWAY_MMD_LED1L 0x01E5 +#define XWAY_MMD_LED2H 0x01E6 +#define XWAY_MMD_LED2L 0x01E7 +#define XWAY_MMD_LED3H 0x01E8 +#define XWAY_MMD_LED3L 0x01E9 + +#define PHY_ID_PHY11G_1_3 0x030260D1 +#define PHY_ID_PHY22F_1_3 0x030260E1 +#define PHY_ID_PHY11G_1_4 0xD565A400 +#define PHY_ID_PHY22F_1_4 0xD565A410 +#define PHY_ID_PHY11G_1_5 0xD565A401 +#define PHY_ID_PHY22F_1_5 0xD565A411 +#define PHY_ID_PHY11G_VR9 0xD565A409 +#define PHY_ID_PHY22F_VR9 0xD565A419 + +static int xway_gphy_config_init(struct phy_device *phydev) +{ + int err; + u32 ledxh; + u32 ledxl; + + /* Mask all interrupts */ + err = phy_write(phydev, XWAY_MDIO_IMASK, 0); + if (err) + return err; + + /* Clear all pending interrupts */ + phy_read(phydev, XWAY_MDIO_ISTAT); + + phy_write_mmd_indirect(phydev, XWAY_MMD_LEDCH, MDIO_MMD_VEND2, + XWAY_MMD_LEDCH_NACS_NONE | + XWAY_MMD_LEDCH_SBF_F02HZ | + XWAY_MMD_LEDCH_FBF_F16HZ); + phy_write_mmd_indirect(phydev, XWAY_MMD_LEDCL, MDIO_MMD_VEND2, + XWAY_MMD_LEDCH_CBLINK_NONE | + XWAY_MMD_LEDCH_SCAN_NONE); + + /** + * In most cases only one LED is connected to this phy, so + * configure them all to constant on and pulse mode. LED3 is + * only available in some packages, leave it in its reset + * configuration. + */ + ledxh = XWAY_MMD_LEDxH_BLINKF_NONE | XWAY_MMD_LEDxH_CON_LINK10XX; + ledxl = XWAY_MMD_LEDxL_PULSE_TXACT | XWAY_MMD_LEDxL_PULSE_RXACT | + XWAY_MMD_LEDxL_BLINKS_NONE; + phy_write_mmd_indirect(phydev, XWAY_MMD_LED0H, MDIO_MMD_VEND2, ledxh); + phy_write_mmd_indirect(phydev, XWAY_MMD_LED0L, MDIO_MMD_VEND2, ledxl); + phy_write_mmd_indirect(phydev, XWAY_MMD_LED1H, MDIO_MMD_VEND2, ledxh); + phy_write_mmd_indirect(phydev, XWAY_MMD_LED1L, MDIO_MMD_VEND2, ledxl); + phy_write_mmd_indirect(phydev, XWAY_MMD_LED2H, MDIO_MMD_VEND2, ledxh); + phy_write_mmd_indirect(phydev, XWAY_MMD_LED2L, MDIO_MMD_VEND2, ledxl); + + return 0; +} + +static int xway_gphy14_config_aneg(struct phy_device *phydev) +{ + int reg, err; + + /* Advertise as multi-port device, see IEEE802.3-2002 40.5.1.1 */ + /* This is a workaround for an errata in rev < 1.5 devices */ + reg = phy_read(phydev, MII_CTRL1000); + reg |= ADVERTISED_MPD; + err = phy_write(phydev, MII_CTRL1000, reg); + if (err) + return err; + + return genphy_config_aneg(phydev); +} + +static int xway_gphy_ack_interrupt(struct phy_device *phydev) +{ + int reg; + + reg = phy_read(phydev, XWAY_MDIO_ISTAT); + return (reg < 0) ? reg : 0; +} + +static int xway_gphy_did_interrupt(struct phy_device *phydev) +{ + int reg; + + reg = phy_read(phydev, XWAY_MDIO_ISTAT); + return reg & XWAY_MDIO_INIT_MASK; +} + +static int xway_gphy_config_intr(struct phy_device *phydev) +{ + u16 mask = 0; + + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) + mask = XWAY_MDIO_INIT_MASK; + + return phy_write(phydev, XWAY_MDIO_IMASK, mask); +} + +static struct phy_driver xway_gphy[] = { + { + .phy_id = PHY_ID_PHY11G_1_3, + .phy_id_mask = 0xffffffff, + .name = "Intel XWAY PHY11G (PEF 7071/PEF 7072) v1.3", + .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause), + .flags = PHY_HAS_INTERRUPT, + .config_init = xway_gphy_config_init, + .config_aneg = xway_gphy14_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = xway_gphy_ack_interrupt, + .did_interrupt = xway_gphy_did_interrupt, + .config_intr = xway_gphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + }, { + .phy_id = PHY_ID_PHY22F_1_3, + .phy_id_mask = 0xffffffff, + .name = "Intel XWAY PHY22F (PEF 7061) v1.3", + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause), + .flags = PHY_HAS_INTERRUPT, + .config_init = xway_gphy_config_init, + .config_aneg = xway_gphy14_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = xway_gphy_ack_interrupt, + .did_interrupt = xway_gphy_did_interrupt, + .config_intr = xway_gphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + }, { + .phy_id = PHY_ID_PHY11G_1_4, + .phy_id_mask = 0xffffffff, + .name = "Intel XWAY PHY11G (PEF 7071/PEF 7072) v1.4", + .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause), + .flags = PHY_HAS_INTERRUPT, + .config_init = xway_gphy_config_init, + .config_aneg = xway_gphy14_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = xway_gphy_ack_interrupt, + .did_interrupt = xway_gphy_did_interrupt, + .config_intr = xway_gphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + }, { + .phy_id = PHY_ID_PHY22F_1_4, + .phy_id_mask = 0xffffffff, + .name = "Intel XWAY PHY22F (PEF 7061) v1.4", + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause), + .flags = PHY_HAS_INTERRUPT, + .config_init = xway_gphy_config_init, + .config_aneg = xway_gphy14_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = xway_gphy_ack_interrupt, + .did_interrupt = xway_gphy_did_interrupt, + .config_intr = xway_gphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + }, { + .phy_id = PHY_ID_PHY11G_1_5, + .phy_id_mask = 0xffffffff, + .name = "Intel XWAY PHY11G (PEF 7071/PEF 7072) v1.5 / v1.6", + .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause), + .flags = PHY_HAS_INTERRUPT, + .config_init = xway_gphy_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = xway_gphy_ack_interrupt, + .did_interrupt = xway_gphy_did_interrupt, + .config_intr = xway_gphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + }, { + .phy_id = PHY_ID_PHY22F_1_5, + .phy_id_mask = 0xffffffff, + .name = "Intel XWAY PHY22F (PEF 7061) v1.5 / v1.6", + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause), + .flags = PHY_HAS_INTERRUPT, + .config_init = xway_gphy_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = xway_gphy_ack_interrupt, + .did_interrupt = xway_gphy_did_interrupt, + .config_intr = xway_gphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + }, { + .phy_id = PHY_ID_PHY11G_VR9, + .phy_id_mask = 0xffffffff, + .name = "Intel XWAY PHY11G (xRX integrated)", + .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause), + .flags = PHY_HAS_INTERRUPT, + .config_init = xway_gphy_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = xway_gphy_ack_interrupt, + .did_interrupt = xway_gphy_did_interrupt, + .config_intr = xway_gphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + }, { + .phy_id = PHY_ID_PHY22F_VR9, + .phy_id_mask = 0xffffffff, + .name = "Intel XWAY PHY22F (xRX integrated)", + .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause | + SUPPORTED_Asym_Pause), + .flags = PHY_HAS_INTERRUPT, + .config_init = xway_gphy_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = xway_gphy_ack_interrupt, + .did_interrupt = xway_gphy_did_interrupt, + .config_intr = xway_gphy_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + }, +}; +module_phy_driver(xway_gphy); + +static struct mdio_device_id __maybe_unused xway_gphy_tbl[] = { + { PHY_ID_PHY11G_1_3, 0xffffffff }, + { PHY_ID_PHY22F_1_3, 0xffffffff }, + { PHY_ID_PHY11G_1_4, 0xffffffff }, + { PHY_ID_PHY22F_1_4, 0xffffffff }, + { PHY_ID_PHY11G_1_5, 0xffffffff }, + { PHY_ID_PHY22F_1_5, 0xffffffff }, + { PHY_ID_PHY11G_VR9, 0xffffffff }, + { PHY_ID_PHY22F_VR9, 0xffffffff }, + { } +}; +MODULE_DEVICE_TABLE(mdio, xway_gphy_tbl); + +MODULE_DESCRIPTION("Intel XWAY PHY driver"); +MODULE_LICENSE("GPL"); |