eb5b5b2ff9
This version moves the medium variable to the card specific structure and changes the GMII_* to BCM54XX_* #defines. This patch adds improved version of enable_fiber for both the 5421 and the 5461 phy. It is now possible to specify with these wether you want autonegotiation or not. This is needed for bladecenter switches where some expect autonegotiation and some dont seem to like this at all. Depending on this flag it sets phy->autoneg accordingly for the fiber mode. More importantly it implements proper read_link and poll_link functions for both phys which can handle both copper and fiber mode by determining the medium first and then branching to the required functions. For fiber they all work fine, for copper they are not tested but return the result of the genmii_* function anyway which is supposed to work. The patch moves the genmii_* functions around to avoid foreward declarations. Signed-off-by: Jens Osterkamp <jens@de.ibm.com> Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Jeff Garzik <jeff@garzik.org>
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 || 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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{
|
|
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 */
|
|
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");
|
|
|