diff options
Diffstat (limited to 'qemu/roms/u-boot/drivers/net/phy/broadcom.c')
-rw-r--r-- | qemu/roms/u-boot/drivers/net/phy/broadcom.c | 274 |
1 files changed, 0 insertions, 274 deletions
diff --git a/qemu/roms/u-boot/drivers/net/phy/broadcom.c b/qemu/roms/u-boot/drivers/net/phy/broadcom.c deleted file mode 100644 index 4512763b5..000000000 --- a/qemu/roms/u-boot/drivers/net/phy/broadcom.c +++ /dev/null @@ -1,274 +0,0 @@ -/* - * Broadcom PHY drivers - * - * SPDX-License-Identifier: GPL-2.0+ - * - * Copyright 2010-2011 Freescale Semiconductor, Inc. - * author Andy Fleming - */ -#include <config.h> -#include <common.h> -#include <phy.h> - -/* Broadcom BCM54xx -- taken from linux sungem_phy */ -#define MIIM_BCM54xx_AUXCNTL 0x18 -#define MIIM_BCM54xx_AUXCNTL_ENCODE(val) (((val & 0x7) << 12)|(val & 0x7)) -#define MIIM_BCM54xx_AUXSTATUS 0x19 -#define MIIM_BCM54xx_AUXSTATUS_LINKMODE_MASK 0x0700 -#define MIIM_BCM54xx_AUXSTATUS_LINKMODE_SHIFT 8 - -#define MIIM_BCM54XX_SHD 0x1c -#define MIIM_BCM54XX_SHD_WRITE 0x8000 -#define MIIM_BCM54XX_SHD_VAL(x) ((x & 0x1f) << 10) -#define MIIM_BCM54XX_SHD_DATA(x) ((x & 0x3ff) << 0) -#define MIIM_BCM54XX_SHD_WR_ENCODE(val, data) \ - (MIIM_BCM54XX_SHD_WRITE | MIIM_BCM54XX_SHD_VAL(val) | \ - MIIM_BCM54XX_SHD_DATA(data)) - -#define MIIM_BCM54XX_EXP_DATA 0x15 /* Expansion register data */ -#define MIIM_BCM54XX_EXP_SEL 0x17 /* Expansion register select */ -#define MIIM_BCM54XX_EXP_SEL_SSD 0x0e00 /* Secondary SerDes select */ -#define MIIM_BCM54XX_EXP_SEL_ER 0x0f00 /* Expansion register select */ - -/* Broadcom BCM5461S */ -static int bcm5461_config(struct phy_device *phydev) -{ - genphy_config_aneg(phydev); - - phy_reset(phydev); - - return 0; -} - -static int bcm54xx_parse_status(struct phy_device *phydev) -{ - unsigned int mii_reg; - - mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_BCM54xx_AUXSTATUS); - - switch ((mii_reg & MIIM_BCM54xx_AUXSTATUS_LINKMODE_MASK) >> - MIIM_BCM54xx_AUXSTATUS_LINKMODE_SHIFT) { - case 1: - phydev->duplex = DUPLEX_HALF; - phydev->speed = SPEED_10; - break; - case 2: - phydev->duplex = DUPLEX_FULL; - phydev->speed = SPEED_10; - break; - case 3: - phydev->duplex = DUPLEX_HALF; - phydev->speed = SPEED_100; - break; - case 5: - phydev->duplex = DUPLEX_FULL; - phydev->speed = SPEED_100; - break; - case 6: - phydev->duplex = DUPLEX_HALF; - phydev->speed = SPEED_1000; - break; - case 7: - phydev->duplex = DUPLEX_FULL; - phydev->speed = SPEED_1000; - break; - default: - printf("Auto-neg error, defaulting to 10BT/HD\n"); - phydev->duplex = DUPLEX_HALF; - phydev->speed = SPEED_10; - break; - } - - return 0; -} - -static int bcm54xx_startup(struct phy_device *phydev) -{ - /* Read the Status (2x to make sure link is right) */ - genphy_update_link(phydev); - bcm54xx_parse_status(phydev); - - return 0; -} - -/* Broadcom BCM5482S */ -/* - * "Ethernet@Wirespeed" needs to be enabled to achieve link in certain - * circumstances. eg a gigabit TSEC connected to a gigabit switch with - * a 4-wire ethernet cable. Both ends advertise gigabit, but can't - * link. "Ethernet@Wirespeed" reduces advertised speed until link - * can be achieved. - */ -static u32 bcm5482_read_wirespeed(struct phy_device *phydev, u32 reg) -{ - return (phy_read(phydev, MDIO_DEVAD_NONE, reg) & 0x8FFF) | 0x8010; -} - -static int bcm5482_config(struct phy_device *phydev) -{ - unsigned int reg; - - /* reset the PHY */ - reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_BMCR); - reg |= BMCR_RESET; - phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, reg); - - /* Setup read from auxilary control shadow register 7 */ - phy_write(phydev, MDIO_DEVAD_NONE, MIIM_BCM54xx_AUXCNTL, - MIIM_BCM54xx_AUXCNTL_ENCODE(7)); - /* Read Misc Control register and or in Ethernet@Wirespeed */ - reg = bcm5482_read_wirespeed(phydev, MIIM_BCM54xx_AUXCNTL); - phy_write(phydev, MDIO_DEVAD_NONE, MIIM_BCM54xx_AUXCNTL, reg); - - /* Initial config/enable of secondary SerDes interface */ - phy_write(phydev, MDIO_DEVAD_NONE, MIIM_BCM54XX_SHD, - MIIM_BCM54XX_SHD_WR_ENCODE(0x14, 0xf)); - /* Write intial value to secondary SerDes Contol */ - phy_write(phydev, MDIO_DEVAD_NONE, MIIM_BCM54XX_EXP_SEL, - MIIM_BCM54XX_EXP_SEL_SSD | 0); - phy_write(phydev, MDIO_DEVAD_NONE, MIIM_BCM54XX_EXP_DATA, - BMCR_ANRESTART); - /* Enable copper/fiber auto-detect */ - phy_write(phydev, MDIO_DEVAD_NONE, MIIM_BCM54XX_SHD, - MIIM_BCM54XX_SHD_WR_ENCODE(0x1e, 0x201)); - - genphy_config_aneg(phydev); - - return 0; -} - -/* - * Find out if PHY is in copper or serdes mode by looking at Expansion Reg - * 0x42 - "Operating Mode Status Register" - */ -static int bcm5482_is_serdes(struct phy_device *phydev) -{ - u16 val; - int serdes = 0; - - phy_write(phydev, MDIO_DEVAD_NONE, MIIM_BCM54XX_EXP_SEL, - MIIM_BCM54XX_EXP_SEL_ER | 0x42); - val = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_BCM54XX_EXP_DATA); - - switch (val & 0x1f) { - case 0x0d: /* RGMII-to-100Base-FX */ - case 0x0e: /* RGMII-to-SGMII */ - case 0x0f: /* RGMII-to-SerDes */ - case 0x12: /* SGMII-to-SerDes */ - case 0x13: /* SGMII-to-100Base-FX */ - case 0x16: /* SerDes-to-Serdes */ - serdes = 1; - break; - case 0x6: /* RGMII-to-Copper */ - case 0x14: /* SGMII-to-Copper */ - case 0x17: /* SerDes-to-Copper */ - break; - default: - printf("ERROR, invalid PHY mode (0x%x\n)", val); - break; - } - - return serdes; -} - -/* - * Determine SerDes link speed and duplex from Expansion reg 0x42 "Operating - * Mode Status Register" - */ -static u32 bcm5482_parse_serdes_sr(struct phy_device *phydev) -{ - u16 val; - int i = 0; - - /* Wait 1s for link - Clause 37 autonegotiation happens very fast */ - while (1) { - phy_write(phydev, MDIO_DEVAD_NONE, MIIM_BCM54XX_EXP_SEL, - MIIM_BCM54XX_EXP_SEL_ER | 0x42); - val = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_BCM54XX_EXP_DATA); - - if (val & 0x8000) - break; - - if (i++ > 1000) { - phydev->link = 0; - return 1; - } - - udelay(1000); /* 1 ms */ - } - - phydev->link = 1; - switch ((val >> 13) & 0x3) { - case (0x00): - phydev->speed = 10; - break; - case (0x01): - phydev->speed = 100; - break; - case (0x02): - phydev->speed = 1000; - break; - } - - phydev->duplex = (val & 0x1000) == 0x1000; - - return 0; -} - -/* - * Figure out if BCM5482 is in serdes or copper mode and determine link - * configuration accordingly - */ -static int bcm5482_startup(struct phy_device *phydev) -{ - if (bcm5482_is_serdes(phydev)) { - bcm5482_parse_serdes_sr(phydev); - phydev->port = PORT_FIBRE; - } else { - /* Wait for auto-negotiation to complete or fail */ - genphy_update_link(phydev); - /* Parse BCM54xx copper aux status register */ - bcm54xx_parse_status(phydev); - } - - return 0; -} - -static struct phy_driver BCM5461S_driver = { - .name = "Broadcom BCM5461S", - .uid = 0x2060c0, - .mask = 0xfffff0, - .features = PHY_GBIT_FEATURES, - .config = &bcm5461_config, - .startup = &bcm54xx_startup, - .shutdown = &genphy_shutdown, -}; - -static struct phy_driver BCM5464S_driver = { - .name = "Broadcom BCM5464S", - .uid = 0x2060b0, - .mask = 0xfffff0, - .features = PHY_GBIT_FEATURES, - .config = &bcm5461_config, - .startup = &bcm54xx_startup, - .shutdown = &genphy_shutdown, -}; - -static struct phy_driver BCM5482S_driver = { - .name = "Broadcom BCM5482S", - .uid = 0x143bcb0, - .mask = 0xffffff0, - .features = PHY_GBIT_FEATURES, - .config = &bcm5482_config, - .startup = &bcm5482_startup, - .shutdown = &genphy_shutdown, -}; - -int phy_broadcom_init(void) -{ - phy_register(&BCM5482S_driver); - phy_register(&BCM5464S_driver); - phy_register(&BCM5461S_driver); - - return 0; -} |