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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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ff01b91636
while (limit--) if (test()) break; if (limit <= 0) goto test_failed; In the last iteration, limit is decremented after the test to 0. If just thereafter test() succeeds and a break occurs, the goto still occurs because limit is 0. Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1200 lines
29 KiB
C
1200 lines
29 KiB
C
/*
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* PHY drivers for the sungem ethernet driver.
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*
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* This file could be shared with other drivers.
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*
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* (c) 2002-2007, Benjamin Herrenscmidt (benh@kernel.crashing.org)
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*
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* TODO:
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* - Add support for PHYs that provide an IRQ line
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* - Eventually moved the entire polling state machine in
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* there (out of the eth driver), so that it can easily be
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* skipped on PHYs that implement it in hardware.
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* - On LXT971 & BCM5201, Apple uses some chip specific regs
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* to read the link status. Figure out why and if it makes
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* sense to do the same (magic aneg ?)
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* - Apple has some additional power management code for some
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* Broadcom PHYs that they "hide" from the OpenSource version
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* of darwin, still need to reverse engineer that
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/types.h>
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#include <linux/netdevice.h>
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#include <linux/etherdevice.h>
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#include <linux/mii.h>
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#include <linux/ethtool.h>
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#include <linux/delay.h>
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#ifdef CONFIG_PPC_PMAC
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#include <asm/prom.h>
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#endif
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#include "sungem_phy.h"
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/* Link modes of the BCM5400 PHY */
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static const int phy_BCM5400_link_table[8][3] = {
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{ 0, 0, 0 }, /* No link */
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{ 0, 0, 0 }, /* 10BT Half Duplex */
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{ 1, 0, 0 }, /* 10BT Full Duplex */
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{ 0, 1, 0 }, /* 100BT Half Duplex */
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{ 0, 1, 0 }, /* 100BT Half Duplex */
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{ 1, 1, 0 }, /* 100BT Full Duplex*/
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{ 1, 0, 1 }, /* 1000BT */
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{ 1, 0, 1 }, /* 1000BT */
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};
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static inline int __phy_read(struct mii_phy* phy, int id, int reg)
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{
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return phy->mdio_read(phy->dev, id, reg);
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}
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static inline void __phy_write(struct mii_phy* phy, int id, int reg, int val)
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{
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phy->mdio_write(phy->dev, id, reg, val);
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}
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static inline int phy_read(struct mii_phy* phy, int reg)
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{
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return phy->mdio_read(phy->dev, phy->mii_id, reg);
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}
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static inline void phy_write(struct mii_phy* phy, int reg, int val)
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{
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phy->mdio_write(phy->dev, phy->mii_id, reg, val);
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}
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static int reset_one_mii_phy(struct mii_phy* phy, int phy_id)
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{
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u16 val;
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int limit = 10000;
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val = __phy_read(phy, phy_id, MII_BMCR);
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val &= ~(BMCR_ISOLATE | BMCR_PDOWN);
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val |= BMCR_RESET;
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__phy_write(phy, phy_id, MII_BMCR, val);
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udelay(100);
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while (--limit) {
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val = __phy_read(phy, phy_id, MII_BMCR);
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if ((val & BMCR_RESET) == 0)
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break;
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udelay(10);
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}
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if ((val & BMCR_ISOLATE) && limit > 0)
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__phy_write(phy, phy_id, MII_BMCR, val & ~BMCR_ISOLATE);
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return (limit <= 0);
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}
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static int bcm5201_init(struct mii_phy* phy)
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{
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u16 data;
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data = phy_read(phy, MII_BCM5201_MULTIPHY);
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data &= ~MII_BCM5201_MULTIPHY_SUPERISOLATE;
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phy_write(phy, MII_BCM5201_MULTIPHY, data);
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phy_write(phy, MII_BCM5201_INTERRUPT, 0);
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return 0;
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}
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static int bcm5201_suspend(struct mii_phy* phy)
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{
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phy_write(phy, MII_BCM5201_INTERRUPT, 0);
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phy_write(phy, MII_BCM5201_MULTIPHY, MII_BCM5201_MULTIPHY_SUPERISOLATE);
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return 0;
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}
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static int bcm5221_init(struct mii_phy* phy)
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{
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u16 data;
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data = phy_read(phy, MII_BCM5221_TEST);
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phy_write(phy, MII_BCM5221_TEST,
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data | MII_BCM5221_TEST_ENABLE_SHADOWS);
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data = phy_read(phy, MII_BCM5221_SHDOW_AUX_STAT2);
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phy_write(phy, MII_BCM5221_SHDOW_AUX_STAT2,
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data | MII_BCM5221_SHDOW_AUX_STAT2_APD);
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data = phy_read(phy, MII_BCM5221_SHDOW_AUX_MODE4);
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phy_write(phy, MII_BCM5221_SHDOW_AUX_MODE4,
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data | MII_BCM5221_SHDOW_AUX_MODE4_CLKLOPWR);
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data = phy_read(phy, MII_BCM5221_TEST);
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phy_write(phy, MII_BCM5221_TEST,
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data & ~MII_BCM5221_TEST_ENABLE_SHADOWS);
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return 0;
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}
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static int bcm5221_suspend(struct mii_phy* phy)
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{
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u16 data;
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data = phy_read(phy, MII_BCM5221_TEST);
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phy_write(phy, MII_BCM5221_TEST,
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data | MII_BCM5221_TEST_ENABLE_SHADOWS);
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data = phy_read(phy, MII_BCM5221_SHDOW_AUX_MODE4);
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phy_write(phy, MII_BCM5221_SHDOW_AUX_MODE4,
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data | MII_BCM5221_SHDOW_AUX_MODE4_IDDQMODE);
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return 0;
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}
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static int bcm5241_init(struct mii_phy* phy)
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{
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u16 data;
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data = phy_read(phy, MII_BCM5221_TEST);
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phy_write(phy, MII_BCM5221_TEST,
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data | MII_BCM5221_TEST_ENABLE_SHADOWS);
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data = phy_read(phy, MII_BCM5221_SHDOW_AUX_STAT2);
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phy_write(phy, MII_BCM5221_SHDOW_AUX_STAT2,
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data | MII_BCM5221_SHDOW_AUX_STAT2_APD);
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data = phy_read(phy, MII_BCM5221_SHDOW_AUX_MODE4);
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phy_write(phy, MII_BCM5221_SHDOW_AUX_MODE4,
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data & ~MII_BCM5241_SHDOW_AUX_MODE4_STANDBYPWR);
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data = phy_read(phy, MII_BCM5221_TEST);
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phy_write(phy, MII_BCM5221_TEST,
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data & ~MII_BCM5221_TEST_ENABLE_SHADOWS);
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return 0;
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}
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static int bcm5241_suspend(struct mii_phy* phy)
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{
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u16 data;
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data = phy_read(phy, MII_BCM5221_TEST);
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phy_write(phy, MII_BCM5221_TEST,
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data | MII_BCM5221_TEST_ENABLE_SHADOWS);
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data = phy_read(phy, MII_BCM5221_SHDOW_AUX_MODE4);
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phy_write(phy, MII_BCM5221_SHDOW_AUX_MODE4,
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data | MII_BCM5241_SHDOW_AUX_MODE4_STANDBYPWR);
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return 0;
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}
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static int bcm5400_init(struct mii_phy* phy)
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{
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u16 data;
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/* Configure for gigabit full duplex */
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data = phy_read(phy, MII_BCM5400_AUXCONTROL);
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data |= MII_BCM5400_AUXCONTROL_PWR10BASET;
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phy_write(phy, MII_BCM5400_AUXCONTROL, data);
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data = phy_read(phy, MII_BCM5400_GB_CONTROL);
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data |= MII_BCM5400_GB_CONTROL_FULLDUPLEXCAP;
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phy_write(phy, MII_BCM5400_GB_CONTROL, data);
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udelay(100);
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/* Reset and configure cascaded 10/100 PHY */
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(void)reset_one_mii_phy(phy, 0x1f);
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data = __phy_read(phy, 0x1f, MII_BCM5201_MULTIPHY);
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data |= MII_BCM5201_MULTIPHY_SERIALMODE;
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__phy_write(phy, 0x1f, MII_BCM5201_MULTIPHY, data);
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data = phy_read(phy, MII_BCM5400_AUXCONTROL);
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data &= ~MII_BCM5400_AUXCONTROL_PWR10BASET;
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phy_write(phy, MII_BCM5400_AUXCONTROL, data);
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return 0;
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}
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static int bcm5400_suspend(struct mii_phy* phy)
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{
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#if 0 /* Commented out in Darwin... someone has those dawn docs ? */
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phy_write(phy, MII_BMCR, BMCR_PDOWN);
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#endif
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return 0;
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}
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static int bcm5401_init(struct mii_phy* phy)
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{
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u16 data;
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int rev;
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rev = phy_read(phy, MII_PHYSID2) & 0x000f;
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if (rev == 0 || rev == 3) {
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/* Some revisions of 5401 appear to need this
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* initialisation sequence to disable, according
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* to OF, "tap power management"
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*
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* WARNING ! OF and Darwin don't agree on the
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* register addresses. OF seem to interpret the
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* register numbers below as decimal
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*
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* Note: This should (and does) match tg3_init_5401phy_dsp
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* in the tg3.c driver. -DaveM
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*/
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phy_write(phy, 0x18, 0x0c20);
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phy_write(phy, 0x17, 0x0012);
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phy_write(phy, 0x15, 0x1804);
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phy_write(phy, 0x17, 0x0013);
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phy_write(phy, 0x15, 0x1204);
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phy_write(phy, 0x17, 0x8006);
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phy_write(phy, 0x15, 0x0132);
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phy_write(phy, 0x17, 0x8006);
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phy_write(phy, 0x15, 0x0232);
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phy_write(phy, 0x17, 0x201f);
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phy_write(phy, 0x15, 0x0a20);
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}
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/* Configure for gigabit full duplex */
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data = phy_read(phy, MII_BCM5400_GB_CONTROL);
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data |= MII_BCM5400_GB_CONTROL_FULLDUPLEXCAP;
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phy_write(phy, MII_BCM5400_GB_CONTROL, data);
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udelay(10);
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/* Reset and configure cascaded 10/100 PHY */
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(void)reset_one_mii_phy(phy, 0x1f);
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data = __phy_read(phy, 0x1f, MII_BCM5201_MULTIPHY);
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data |= MII_BCM5201_MULTIPHY_SERIALMODE;
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__phy_write(phy, 0x1f, MII_BCM5201_MULTIPHY, data);
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return 0;
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}
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static int bcm5401_suspend(struct mii_phy* phy)
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{
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#if 0 /* Commented out in Darwin... someone has those dawn docs ? */
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phy_write(phy, MII_BMCR, BMCR_PDOWN);
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#endif
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return 0;
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}
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static int bcm5411_init(struct mii_phy* phy)
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{
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u16 data;
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/* Here's some more Apple black magic to setup
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* some voltage stuffs.
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*/
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phy_write(phy, 0x1c, 0x8c23);
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phy_write(phy, 0x1c, 0x8ca3);
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phy_write(phy, 0x1c, 0x8c23);
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/* Here, Apple seems to want to reset it, do
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* it as well
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*/
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phy_write(phy, MII_BMCR, BMCR_RESET);
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phy_write(phy, MII_BMCR, 0x1340);
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data = phy_read(phy, MII_BCM5400_GB_CONTROL);
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data |= MII_BCM5400_GB_CONTROL_FULLDUPLEXCAP;
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phy_write(phy, MII_BCM5400_GB_CONTROL, data);
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udelay(10);
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/* Reset and configure cascaded 10/100 PHY */
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(void)reset_one_mii_phy(phy, 0x1f);
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return 0;
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}
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static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise)
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{
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u16 ctl, adv;
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phy->autoneg = 1;
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phy->speed = SPEED_10;
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phy->duplex = DUPLEX_HALF;
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phy->pause = 0;
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phy->advertising = advertise;
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/* Setup standard advertise */
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adv = phy_read(phy, MII_ADVERTISE);
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adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
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if (advertise & ADVERTISED_10baseT_Half)
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adv |= ADVERTISE_10HALF;
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if (advertise & ADVERTISED_10baseT_Full)
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adv |= ADVERTISE_10FULL;
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if (advertise & ADVERTISED_100baseT_Half)
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adv |= ADVERTISE_100HALF;
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if (advertise & ADVERTISED_100baseT_Full)
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adv |= ADVERTISE_100FULL;
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phy_write(phy, MII_ADVERTISE, adv);
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/* Start/Restart aneg */
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ctl = phy_read(phy, MII_BMCR);
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ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
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phy_write(phy, MII_BMCR, ctl);
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return 0;
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}
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static int genmii_setup_forced(struct mii_phy *phy, int speed, int fd)
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{
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u16 ctl;
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phy->autoneg = 0;
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phy->speed = speed;
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phy->duplex = fd;
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phy->pause = 0;
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ctl = phy_read(phy, MII_BMCR);
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ctl &= ~(BMCR_FULLDPLX|BMCR_SPEED100|BMCR_ANENABLE);
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/* First reset the PHY */
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phy_write(phy, MII_BMCR, ctl | BMCR_RESET);
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/* Select speed & duplex */
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switch(speed) {
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case SPEED_10:
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break;
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case SPEED_100:
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ctl |= BMCR_SPEED100;
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break;
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case SPEED_1000:
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default:
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return -EINVAL;
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}
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if (fd == DUPLEX_FULL)
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ctl |= BMCR_FULLDPLX;
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phy_write(phy, MII_BMCR, ctl);
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return 0;
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}
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static int genmii_poll_link(struct mii_phy *phy)
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{
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u16 status;
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(void)phy_read(phy, MII_BMSR);
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status = phy_read(phy, MII_BMSR);
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if ((status & BMSR_LSTATUS) == 0)
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return 0;
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if (phy->autoneg && !(status & BMSR_ANEGCOMPLETE))
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return 0;
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return 1;
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}
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static int genmii_read_link(struct mii_phy *phy)
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{
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u16 lpa;
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if (phy->autoneg) {
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lpa = phy_read(phy, MII_LPA);
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if (lpa & (LPA_10FULL | LPA_100FULL))
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phy->duplex = DUPLEX_FULL;
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else
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phy->duplex = DUPLEX_HALF;
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if (lpa & (LPA_100FULL | LPA_100HALF))
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phy->speed = SPEED_100;
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else
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phy->speed = SPEED_10;
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phy->pause = 0;
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}
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/* On non-aneg, we assume what we put in BMCR is the speed,
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* though magic-aneg shouldn't prevent this case from occurring
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*/
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return 0;
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}
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static int generic_suspend(struct mii_phy* phy)
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{
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phy_write(phy, MII_BMCR, BMCR_PDOWN);
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return 0;
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}
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static int bcm5421_init(struct mii_phy* phy)
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{
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u16 data;
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unsigned int id;
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id = (phy_read(phy, MII_PHYSID1) << 16 | phy_read(phy, MII_PHYSID2));
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/* Revision 0 of 5421 needs some fixups */
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if (id == 0x002060e0) {
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/* This is borrowed from MacOS
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*/
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phy_write(phy, 0x18, 0x1007);
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data = phy_read(phy, 0x18);
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phy_write(phy, 0x18, data | 0x0400);
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phy_write(phy, 0x18, 0x0007);
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data = phy_read(phy, 0x18);
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phy_write(phy, 0x18, data | 0x0800);
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phy_write(phy, 0x17, 0x000a);
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data = phy_read(phy, 0x15);
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phy_write(phy, 0x15, data | 0x0200);
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}
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/* Pick up some init code from OF for K2 version */
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if ((id & 0xfffffff0) == 0x002062e0) {
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phy_write(phy, 4, 0x01e1);
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phy_write(phy, 9, 0x0300);
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}
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/* Check if we can enable automatic low power */
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#ifdef CONFIG_PPC_PMAC
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if (phy->platform_data) {
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struct device_node *np = of_get_parent(phy->platform_data);
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int can_low_power = 1;
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if (np == NULL || of_get_property(np, "no-autolowpower", NULL))
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can_low_power = 0;
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if (can_low_power) {
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/* Enable automatic low-power */
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phy_write(phy, 0x1c, 0x9002);
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phy_write(phy, 0x1c, 0xa821);
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phy_write(phy, 0x1c, 0x941d);
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}
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}
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#endif /* CONFIG_PPC_PMAC */
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return 0;
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}
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static int bcm54xx_setup_aneg(struct mii_phy *phy, u32 advertise)
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{
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u16 ctl, adv;
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phy->autoneg = 1;
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phy->speed = SPEED_10;
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phy->duplex = DUPLEX_HALF;
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phy->pause = 0;
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phy->advertising = advertise;
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/* Setup standard advertise */
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adv = phy_read(phy, MII_ADVERTISE);
|
|
adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
|
|
if (advertise & ADVERTISED_10baseT_Half)
|
|
adv |= ADVERTISE_10HALF;
|
|
if (advertise & ADVERTISED_10baseT_Full)
|
|
adv |= ADVERTISE_10FULL;
|
|
if (advertise & ADVERTISED_100baseT_Half)
|
|
adv |= ADVERTISE_100HALF;
|
|
if (advertise & ADVERTISED_100baseT_Full)
|
|
adv |= ADVERTISE_100FULL;
|
|
if (advertise & ADVERTISED_Pause)
|
|
adv |= ADVERTISE_PAUSE_CAP;
|
|
if (advertise & ADVERTISED_Asym_Pause)
|
|
adv |= ADVERTISE_PAUSE_ASYM;
|
|
phy_write(phy, MII_ADVERTISE, adv);
|
|
|
|
/* Setup 1000BT advertise */
|
|
adv = phy_read(phy, MII_1000BASETCONTROL);
|
|
adv &= ~(MII_1000BASETCONTROL_FULLDUPLEXCAP|MII_1000BASETCONTROL_HALFDUPLEXCAP);
|
|
if (advertise & SUPPORTED_1000baseT_Half)
|
|
adv |= MII_1000BASETCONTROL_HALFDUPLEXCAP;
|
|
if (advertise & SUPPORTED_1000baseT_Full)
|
|
adv |= MII_1000BASETCONTROL_FULLDUPLEXCAP;
|
|
phy_write(phy, MII_1000BASETCONTROL, adv);
|
|
|
|
/* Start/Restart aneg */
|
|
ctl = phy_read(phy, MII_BMCR);
|
|
ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
|
|
phy_write(phy, MII_BMCR, ctl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bcm54xx_setup_forced(struct mii_phy *phy, int speed, int fd)
|
|
{
|
|
u16 ctl;
|
|
|
|
phy->autoneg = 0;
|
|
phy->speed = speed;
|
|
phy->duplex = fd;
|
|
phy->pause = 0;
|
|
|
|
ctl = phy_read(phy, MII_BMCR);
|
|
ctl &= ~(BMCR_FULLDPLX|BMCR_SPEED100|BMCR_SPD2|BMCR_ANENABLE);
|
|
|
|
/* First reset the PHY */
|
|
phy_write(phy, MII_BMCR, ctl | BMCR_RESET);
|
|
|
|
/* Select speed & duplex */
|
|
switch(speed) {
|
|
case SPEED_10:
|
|
break;
|
|
case SPEED_100:
|
|
ctl |= BMCR_SPEED100;
|
|
break;
|
|
case SPEED_1000:
|
|
ctl |= BMCR_SPD2;
|
|
}
|
|
if (fd == DUPLEX_FULL)
|
|
ctl |= BMCR_FULLDPLX;
|
|
|
|
// XXX Should we set the sungem to GII now on 1000BT ?
|
|
|
|
phy_write(phy, MII_BMCR, ctl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bcm54xx_read_link(struct mii_phy *phy)
|
|
{
|
|
int link_mode;
|
|
u16 val;
|
|
|
|
if (phy->autoneg) {
|
|
val = phy_read(phy, MII_BCM5400_AUXSTATUS);
|
|
link_mode = ((val & MII_BCM5400_AUXSTATUS_LINKMODE_MASK) >>
|
|
MII_BCM5400_AUXSTATUS_LINKMODE_SHIFT);
|
|
phy->duplex = phy_BCM5400_link_table[link_mode][0] ?
|
|
DUPLEX_FULL : DUPLEX_HALF;
|
|
phy->speed = phy_BCM5400_link_table[link_mode][2] ?
|
|
SPEED_1000 :
|
|
(phy_BCM5400_link_table[link_mode][1] ?
|
|
SPEED_100 : SPEED_10);
|
|
val = phy_read(phy, MII_LPA);
|
|
phy->pause = (phy->duplex == DUPLEX_FULL) &&
|
|
((val & LPA_PAUSE) != 0);
|
|
}
|
|
/* On non-aneg, we assume what we put in BMCR is the speed,
|
|
* though magic-aneg shouldn't prevent this case from occurring
|
|
*/
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int marvell88e1111_init(struct mii_phy* phy)
|
|
{
|
|
u16 rev;
|
|
|
|
/* magic init sequence for rev 0 */
|
|
rev = phy_read(phy, MII_PHYSID2) & 0x000f;
|
|
if (rev == 0) {
|
|
phy_write(phy, 0x1d, 0x000a);
|
|
phy_write(phy, 0x1e, 0x0821);
|
|
|
|
phy_write(phy, 0x1d, 0x0006);
|
|
phy_write(phy, 0x1e, 0x8600);
|
|
|
|
phy_write(phy, 0x1d, 0x000b);
|
|
phy_write(phy, 0x1e, 0x0100);
|
|
|
|
phy_write(phy, 0x1d, 0x0004);
|
|
phy_write(phy, 0x1e, 0x4850);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
#define BCM5421_MODE_MASK (1 << 5)
|
|
|
|
static int bcm5421_poll_link(struct mii_phy* phy)
|
|
{
|
|
u32 phy_reg;
|
|
int mode;
|
|
|
|
/* find out in what mode we are */
|
|
phy_write(phy, MII_NCONFIG, 0x1000);
|
|
phy_reg = phy_read(phy, MII_NCONFIG);
|
|
|
|
mode = (phy_reg & BCM5421_MODE_MASK) >> 5;
|
|
|
|
if ( mode == BCM54XX_COPPER)
|
|
return genmii_poll_link(phy);
|
|
|
|
/* try to find out wether we have a link */
|
|
phy_write(phy, MII_NCONFIG, 0x2000);
|
|
phy_reg = phy_read(phy, MII_NCONFIG);
|
|
|
|
if (phy_reg & 0x0020)
|
|
return 0;
|
|
else
|
|
return 1;
|
|
}
|
|
|
|
static int bcm5421_read_link(struct mii_phy* phy)
|
|
{
|
|
u32 phy_reg;
|
|
int mode;
|
|
|
|
/* find out in what mode we are */
|
|
phy_write(phy, MII_NCONFIG, 0x1000);
|
|
phy_reg = phy_read(phy, MII_NCONFIG);
|
|
|
|
mode = (phy_reg & BCM5421_MODE_MASK ) >> 5;
|
|
|
|
if ( mode == BCM54XX_COPPER)
|
|
return bcm54xx_read_link(phy);
|
|
|
|
phy->speed = SPEED_1000;
|
|
|
|
/* find out wether we are running half- or full duplex */
|
|
phy_write(phy, MII_NCONFIG, 0x2000);
|
|
phy_reg = phy_read(phy, MII_NCONFIG);
|
|
|
|
if ( (phy_reg & 0x0080) >> 7)
|
|
phy->duplex |= DUPLEX_HALF;
|
|
else
|
|
phy->duplex |= DUPLEX_FULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bcm5421_enable_fiber(struct mii_phy* phy, int autoneg)
|
|
{
|
|
/* enable fiber mode */
|
|
phy_write(phy, MII_NCONFIG, 0x9020);
|
|
/* LEDs active in both modes, autosense prio = fiber */
|
|
phy_write(phy, MII_NCONFIG, 0x945f);
|
|
|
|
if (!autoneg) {
|
|
/* switch off fibre autoneg */
|
|
phy_write(phy, MII_NCONFIG, 0xfc01);
|
|
phy_write(phy, 0x0b, 0x0004);
|
|
}
|
|
|
|
phy->autoneg = autoneg;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define BCM5461_FIBER_LINK (1 << 2)
|
|
#define BCM5461_MODE_MASK (3 << 1)
|
|
|
|
static int bcm5461_poll_link(struct mii_phy* phy)
|
|
{
|
|
u32 phy_reg;
|
|
int mode;
|
|
|
|
/* find out in what mode we are */
|
|
phy_write(phy, MII_NCONFIG, 0x7c00);
|
|
phy_reg = phy_read(phy, MII_NCONFIG);
|
|
|
|
mode = (phy_reg & BCM5461_MODE_MASK ) >> 1;
|
|
|
|
if ( mode == BCM54XX_COPPER)
|
|
return genmii_poll_link(phy);
|
|
|
|
/* find out wether we have a link */
|
|
phy_write(phy, MII_NCONFIG, 0x7000);
|
|
phy_reg = phy_read(phy, MII_NCONFIG);
|
|
|
|
if (phy_reg & BCM5461_FIBER_LINK)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
#define BCM5461_FIBER_DUPLEX (1 << 3)
|
|
|
|
static int bcm5461_read_link(struct mii_phy* phy)
|
|
{
|
|
u32 phy_reg;
|
|
int mode;
|
|
|
|
/* find out in what mode we are */
|
|
phy_write(phy, MII_NCONFIG, 0x7c00);
|
|
phy_reg = phy_read(phy, MII_NCONFIG);
|
|
|
|
mode = (phy_reg & BCM5461_MODE_MASK ) >> 1;
|
|
|
|
if ( mode == BCM54XX_COPPER) {
|
|
return bcm54xx_read_link(phy);
|
|
}
|
|
|
|
phy->speed = SPEED_1000;
|
|
|
|
/* find out wether we are running half- or full duplex */
|
|
phy_write(phy, MII_NCONFIG, 0x7000);
|
|
phy_reg = phy_read(phy, MII_NCONFIG);
|
|
|
|
if (phy_reg & BCM5461_FIBER_DUPLEX)
|
|
phy->duplex |= DUPLEX_FULL;
|
|
else
|
|
phy->duplex |= DUPLEX_HALF;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int bcm5461_enable_fiber(struct mii_phy* phy, int autoneg)
|
|
{
|
|
/* select fiber mode, enable 1000 base-X registers */
|
|
phy_write(phy, MII_NCONFIG, 0xfc0b);
|
|
|
|
if (autoneg) {
|
|
/* enable fiber with no autonegotiation */
|
|
phy_write(phy, MII_ADVERTISE, 0x01e0);
|
|
phy_write(phy, MII_BMCR, 0x1140);
|
|
} else {
|
|
/* enable fiber with autonegotiation */
|
|
phy_write(phy, MII_BMCR, 0x0140);
|
|
}
|
|
|
|
phy->autoneg = autoneg;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int marvell_setup_aneg(struct mii_phy *phy, u32 advertise)
|
|
{
|
|
u16 ctl, adv;
|
|
|
|
phy->autoneg = 1;
|
|
phy->speed = SPEED_10;
|
|
phy->duplex = DUPLEX_HALF;
|
|
phy->pause = 0;
|
|
phy->advertising = advertise;
|
|
|
|
/* Setup standard advertise */
|
|
adv = phy_read(phy, MII_ADVERTISE);
|
|
adv &= ~(ADVERTISE_ALL | ADVERTISE_100BASE4);
|
|
if (advertise & ADVERTISED_10baseT_Half)
|
|
adv |= ADVERTISE_10HALF;
|
|
if (advertise & ADVERTISED_10baseT_Full)
|
|
adv |= ADVERTISE_10FULL;
|
|
if (advertise & ADVERTISED_100baseT_Half)
|
|
adv |= ADVERTISE_100HALF;
|
|
if (advertise & ADVERTISED_100baseT_Full)
|
|
adv |= ADVERTISE_100FULL;
|
|
if (advertise & ADVERTISED_Pause)
|
|
adv |= ADVERTISE_PAUSE_CAP;
|
|
if (advertise & ADVERTISED_Asym_Pause)
|
|
adv |= ADVERTISE_PAUSE_ASYM;
|
|
phy_write(phy, MII_ADVERTISE, adv);
|
|
|
|
/* Setup 1000BT advertise & enable crossover detect
|
|
* XXX How do we advertise 1000BT ? Darwin source is
|
|
* confusing here, they read from specific control and
|
|
* write to control... Someone has specs for those
|
|
* beasts ?
|
|
*/
|
|
adv = phy_read(phy, MII_M1011_PHY_SPEC_CONTROL);
|
|
adv |= MII_M1011_PHY_SPEC_CONTROL_AUTO_MDIX;
|
|
adv &= ~(MII_1000BASETCONTROL_FULLDUPLEXCAP |
|
|
MII_1000BASETCONTROL_HALFDUPLEXCAP);
|
|
if (advertise & SUPPORTED_1000baseT_Half)
|
|
adv |= MII_1000BASETCONTROL_HALFDUPLEXCAP;
|
|
if (advertise & SUPPORTED_1000baseT_Full)
|
|
adv |= MII_1000BASETCONTROL_FULLDUPLEXCAP;
|
|
phy_write(phy, MII_1000BASETCONTROL, adv);
|
|
|
|
/* Start/Restart aneg */
|
|
ctl = phy_read(phy, MII_BMCR);
|
|
ctl |= (BMCR_ANENABLE | BMCR_ANRESTART);
|
|
phy_write(phy, MII_BMCR, ctl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int marvell_setup_forced(struct mii_phy *phy, int speed, int fd)
|
|
{
|
|
u16 ctl, ctl2;
|
|
|
|
phy->autoneg = 0;
|
|
phy->speed = speed;
|
|
phy->duplex = fd;
|
|
phy->pause = 0;
|
|
|
|
ctl = phy_read(phy, MII_BMCR);
|
|
ctl &= ~(BMCR_FULLDPLX|BMCR_SPEED100|BMCR_SPD2|BMCR_ANENABLE);
|
|
ctl |= BMCR_RESET;
|
|
|
|
/* Select speed & duplex */
|
|
switch(speed) {
|
|
case SPEED_10:
|
|
break;
|
|
case SPEED_100:
|
|
ctl |= BMCR_SPEED100;
|
|
break;
|
|
/* I'm not sure about the one below, again, Darwin source is
|
|
* quite confusing and I lack chip specs
|
|
*/
|
|
case SPEED_1000:
|
|
ctl |= BMCR_SPD2;
|
|
}
|
|
if (fd == DUPLEX_FULL)
|
|
ctl |= BMCR_FULLDPLX;
|
|
|
|
/* Disable crossover. Again, the way Apple does it is strange,
|
|
* though I don't assume they are wrong ;)
|
|
*/
|
|
ctl2 = phy_read(phy, MII_M1011_PHY_SPEC_CONTROL);
|
|
ctl2 &= ~(MII_M1011_PHY_SPEC_CONTROL_MANUAL_MDIX |
|
|
MII_M1011_PHY_SPEC_CONTROL_AUTO_MDIX |
|
|
MII_1000BASETCONTROL_FULLDUPLEXCAP |
|
|
MII_1000BASETCONTROL_HALFDUPLEXCAP);
|
|
if (speed == SPEED_1000)
|
|
ctl2 |= (fd == DUPLEX_FULL) ?
|
|
MII_1000BASETCONTROL_FULLDUPLEXCAP :
|
|
MII_1000BASETCONTROL_HALFDUPLEXCAP;
|
|
phy_write(phy, MII_1000BASETCONTROL, ctl2);
|
|
|
|
// XXX Should we set the sungem to GII now on 1000BT ?
|
|
|
|
phy_write(phy, MII_BMCR, ctl);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int marvell_read_link(struct mii_phy *phy)
|
|
{
|
|
u16 status, pmask;
|
|
|
|
if (phy->autoneg) {
|
|
status = phy_read(phy, MII_M1011_PHY_SPEC_STATUS);
|
|
if ((status & MII_M1011_PHY_SPEC_STATUS_RESOLVED) == 0)
|
|
return -EAGAIN;
|
|
if (status & MII_M1011_PHY_SPEC_STATUS_1000)
|
|
phy->speed = SPEED_1000;
|
|
else if (status & MII_M1011_PHY_SPEC_STATUS_100)
|
|
phy->speed = SPEED_100;
|
|
else
|
|
phy->speed = SPEED_10;
|
|
if (status & MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX)
|
|
phy->duplex = DUPLEX_FULL;
|
|
else
|
|
phy->duplex = DUPLEX_HALF;
|
|
pmask = MII_M1011_PHY_SPEC_STATUS_TX_PAUSE |
|
|
MII_M1011_PHY_SPEC_STATUS_RX_PAUSE;
|
|
phy->pause = (status & pmask) == pmask;
|
|
}
|
|
/* On non-aneg, we assume what we put in BMCR is the speed,
|
|
* though magic-aneg shouldn't prevent this case from occurring
|
|
*/
|
|
|
|
return 0;
|
|
}
|
|
|
|
#define MII_BASIC_FEATURES \
|
|
(SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \
|
|
SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \
|
|
SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII | \
|
|
SUPPORTED_Pause)
|
|
|
|
/* On gigabit capable PHYs, we advertise Pause support but not asym pause
|
|
* support for now as I'm not sure it's supported and Darwin doesn't do
|
|
* it neither. --BenH.
|
|
*/
|
|
#define MII_GBIT_FEATURES \
|
|
(MII_BASIC_FEATURES | \
|
|
SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full)
|
|
|
|
/* Broadcom BCM 5201 */
|
|
static struct mii_phy_ops bcm5201_phy_ops = {
|
|
.init = bcm5201_init,
|
|
.suspend = bcm5201_suspend,
|
|
.setup_aneg = genmii_setup_aneg,
|
|
.setup_forced = genmii_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = genmii_read_link,
|
|
};
|
|
|
|
static struct mii_phy_def bcm5201_phy_def = {
|
|
.phy_id = 0x00406210,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "BCM5201",
|
|
.features = MII_BASIC_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &bcm5201_phy_ops
|
|
};
|
|
|
|
/* Broadcom BCM 5221 */
|
|
static struct mii_phy_ops bcm5221_phy_ops = {
|
|
.suspend = bcm5221_suspend,
|
|
.init = bcm5221_init,
|
|
.setup_aneg = genmii_setup_aneg,
|
|
.setup_forced = genmii_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = genmii_read_link,
|
|
};
|
|
|
|
static struct mii_phy_def bcm5221_phy_def = {
|
|
.phy_id = 0x004061e0,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "BCM5221",
|
|
.features = MII_BASIC_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &bcm5221_phy_ops
|
|
};
|
|
|
|
/* Broadcom BCM 5241 */
|
|
static struct mii_phy_ops bcm5241_phy_ops = {
|
|
.suspend = bcm5241_suspend,
|
|
.init = bcm5241_init,
|
|
.setup_aneg = genmii_setup_aneg,
|
|
.setup_forced = genmii_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = genmii_read_link,
|
|
};
|
|
static struct mii_phy_def bcm5241_phy_def = {
|
|
.phy_id = 0x0143bc30,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "BCM5241",
|
|
.features = MII_BASIC_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &bcm5241_phy_ops
|
|
};
|
|
|
|
/* Broadcom BCM 5400 */
|
|
static struct mii_phy_ops bcm5400_phy_ops = {
|
|
.init = bcm5400_init,
|
|
.suspend = bcm5400_suspend,
|
|
.setup_aneg = bcm54xx_setup_aneg,
|
|
.setup_forced = bcm54xx_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = bcm54xx_read_link,
|
|
};
|
|
|
|
static struct mii_phy_def bcm5400_phy_def = {
|
|
.phy_id = 0x00206040,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "BCM5400",
|
|
.features = MII_GBIT_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &bcm5400_phy_ops
|
|
};
|
|
|
|
/* Broadcom BCM 5401 */
|
|
static struct mii_phy_ops bcm5401_phy_ops = {
|
|
.init = bcm5401_init,
|
|
.suspend = bcm5401_suspend,
|
|
.setup_aneg = bcm54xx_setup_aneg,
|
|
.setup_forced = bcm54xx_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = bcm54xx_read_link,
|
|
};
|
|
|
|
static struct mii_phy_def bcm5401_phy_def = {
|
|
.phy_id = 0x00206050,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "BCM5401",
|
|
.features = MII_GBIT_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &bcm5401_phy_ops
|
|
};
|
|
|
|
/* Broadcom BCM 5411 */
|
|
static struct mii_phy_ops bcm5411_phy_ops = {
|
|
.init = bcm5411_init,
|
|
.suspend = generic_suspend,
|
|
.setup_aneg = bcm54xx_setup_aneg,
|
|
.setup_forced = bcm54xx_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = bcm54xx_read_link,
|
|
};
|
|
|
|
static struct mii_phy_def bcm5411_phy_def = {
|
|
.phy_id = 0x00206070,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "BCM5411",
|
|
.features = MII_GBIT_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &bcm5411_phy_ops
|
|
};
|
|
|
|
/* Broadcom BCM 5421 */
|
|
static struct mii_phy_ops bcm5421_phy_ops = {
|
|
.init = bcm5421_init,
|
|
.suspend = generic_suspend,
|
|
.setup_aneg = bcm54xx_setup_aneg,
|
|
.setup_forced = bcm54xx_setup_forced,
|
|
.poll_link = bcm5421_poll_link,
|
|
.read_link = bcm5421_read_link,
|
|
.enable_fiber = bcm5421_enable_fiber,
|
|
};
|
|
|
|
static struct mii_phy_def bcm5421_phy_def = {
|
|
.phy_id = 0x002060e0,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "BCM5421",
|
|
.features = MII_GBIT_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &bcm5421_phy_ops
|
|
};
|
|
|
|
/* Broadcom BCM 5421 built-in K2 */
|
|
static struct mii_phy_ops bcm5421k2_phy_ops = {
|
|
.init = bcm5421_init,
|
|
.suspend = generic_suspend,
|
|
.setup_aneg = bcm54xx_setup_aneg,
|
|
.setup_forced = bcm54xx_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = bcm54xx_read_link,
|
|
};
|
|
|
|
static struct mii_phy_def bcm5421k2_phy_def = {
|
|
.phy_id = 0x002062e0,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "BCM5421-K2",
|
|
.features = MII_GBIT_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &bcm5421k2_phy_ops
|
|
};
|
|
|
|
static struct mii_phy_ops bcm5461_phy_ops = {
|
|
.init = bcm5421_init,
|
|
.suspend = generic_suspend,
|
|
.setup_aneg = bcm54xx_setup_aneg,
|
|
.setup_forced = bcm54xx_setup_forced,
|
|
.poll_link = bcm5461_poll_link,
|
|
.read_link = bcm5461_read_link,
|
|
.enable_fiber = bcm5461_enable_fiber,
|
|
};
|
|
|
|
static struct mii_phy_def bcm5461_phy_def = {
|
|
.phy_id = 0x002060c0,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "BCM5461",
|
|
.features = MII_GBIT_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &bcm5461_phy_ops
|
|
};
|
|
|
|
/* Broadcom BCM 5462 built-in Vesta */
|
|
static struct mii_phy_ops bcm5462V_phy_ops = {
|
|
.init = bcm5421_init,
|
|
.suspend = generic_suspend,
|
|
.setup_aneg = bcm54xx_setup_aneg,
|
|
.setup_forced = bcm54xx_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = bcm54xx_read_link,
|
|
};
|
|
|
|
static struct mii_phy_def bcm5462V_phy_def = {
|
|
.phy_id = 0x002060d0,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "BCM5462-Vesta",
|
|
.features = MII_GBIT_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &bcm5462V_phy_ops
|
|
};
|
|
|
|
/* Marvell 88E1101 amd 88E1111 */
|
|
static struct mii_phy_ops marvell88e1101_phy_ops = {
|
|
.suspend = generic_suspend,
|
|
.setup_aneg = marvell_setup_aneg,
|
|
.setup_forced = marvell_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = marvell_read_link
|
|
};
|
|
|
|
static struct mii_phy_ops marvell88e1111_phy_ops = {
|
|
.init = marvell88e1111_init,
|
|
.suspend = generic_suspend,
|
|
.setup_aneg = marvell_setup_aneg,
|
|
.setup_forced = marvell_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = marvell_read_link
|
|
};
|
|
|
|
/* two revs in darwin for the 88e1101 ... I could use a datasheet
|
|
* to get the proper names...
|
|
*/
|
|
static struct mii_phy_def marvell88e1101v1_phy_def = {
|
|
.phy_id = 0x01410c20,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Marvell 88E1101v1",
|
|
.features = MII_GBIT_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &marvell88e1101_phy_ops
|
|
};
|
|
static struct mii_phy_def marvell88e1101v2_phy_def = {
|
|
.phy_id = 0x01410c60,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Marvell 88E1101v2",
|
|
.features = MII_GBIT_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &marvell88e1101_phy_ops
|
|
};
|
|
static struct mii_phy_def marvell88e1111_phy_def = {
|
|
.phy_id = 0x01410cc0,
|
|
.phy_id_mask = 0xfffffff0,
|
|
.name = "Marvell 88E1111",
|
|
.features = MII_GBIT_FEATURES,
|
|
.magic_aneg = 1,
|
|
.ops = &marvell88e1111_phy_ops
|
|
};
|
|
|
|
/* Generic implementation for most 10/100 PHYs */
|
|
static struct mii_phy_ops generic_phy_ops = {
|
|
.setup_aneg = genmii_setup_aneg,
|
|
.setup_forced = genmii_setup_forced,
|
|
.poll_link = genmii_poll_link,
|
|
.read_link = genmii_read_link
|
|
};
|
|
|
|
static struct mii_phy_def genmii_phy_def = {
|
|
.phy_id = 0x00000000,
|
|
.phy_id_mask = 0x00000000,
|
|
.name = "Generic MII",
|
|
.features = MII_BASIC_FEATURES,
|
|
.magic_aneg = 0,
|
|
.ops = &generic_phy_ops
|
|
};
|
|
|
|
static struct mii_phy_def* mii_phy_table[] = {
|
|
&bcm5201_phy_def,
|
|
&bcm5221_phy_def,
|
|
&bcm5241_phy_def,
|
|
&bcm5400_phy_def,
|
|
&bcm5401_phy_def,
|
|
&bcm5411_phy_def,
|
|
&bcm5421_phy_def,
|
|
&bcm5421k2_phy_def,
|
|
&bcm5461_phy_def,
|
|
&bcm5462V_phy_def,
|
|
&marvell88e1101v1_phy_def,
|
|
&marvell88e1101v2_phy_def,
|
|
&marvell88e1111_phy_def,
|
|
&genmii_phy_def,
|
|
NULL
|
|
};
|
|
|
|
int mii_phy_probe(struct mii_phy *phy, int mii_id)
|
|
{
|
|
int rc;
|
|
u32 id;
|
|
struct mii_phy_def* def;
|
|
int i;
|
|
|
|
/* We do not reset the mii_phy structure as the driver
|
|
* may re-probe the PHY regulary
|
|
*/
|
|
phy->mii_id = mii_id;
|
|
|
|
/* Take PHY out of isloate mode and reset it. */
|
|
rc = reset_one_mii_phy(phy, mii_id);
|
|
if (rc)
|
|
goto fail;
|
|
|
|
/* Read ID and find matching entry */
|
|
id = (phy_read(phy, MII_PHYSID1) << 16 | phy_read(phy, MII_PHYSID2));
|
|
printk(KERN_DEBUG "PHY ID: %x, addr: %x\n", id, mii_id);
|
|
for (i=0; (def = mii_phy_table[i]) != NULL; i++)
|
|
if ((id & def->phy_id_mask) == def->phy_id)
|
|
break;
|
|
/* Should never be NULL (we have a generic entry), but... */
|
|
if (def == NULL)
|
|
goto fail;
|
|
|
|
phy->def = def;
|
|
|
|
return 0;
|
|
fail:
|
|
phy->speed = 0;
|
|
phy->duplex = 0;
|
|
phy->pause = 0;
|
|
phy->advertising = 0;
|
|
return -ENODEV;
|
|
}
|
|
|
|
EXPORT_SYMBOL(mii_phy_probe);
|
|
MODULE_LICENSE("GPL");
|
|
|