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ipxe/src/drivers/net/tg3/tg3_phy.c

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#include <mii.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <byteswap.h>
#include <ipxe/pci.h>
#include "tg3.h"
static void tg3_link_report(struct tg3 *tp);
void tg3_mdio_init(struct tg3 *tp)
{ DBGP("%s\n", __func__);
if (tg3_flag(tp, 5717_PLUS)) {
u32 is_serdes;
tp->phy_addr = PCI_FUNC(tp->pdev->busdevfn) + 1;
if (tp->pci_chip_rev_id != CHIPREV_ID_5717_A0)
is_serdes = tr32(SG_DIG_STATUS) & SG_DIG_IS_SERDES;
else
is_serdes = tr32(TG3_CPMU_PHY_STRAP) &
TG3_CPMU_PHY_STRAP_IS_SERDES;
if (is_serdes)
tp->phy_addr += 7;
} else
tp->phy_addr = TG3_PHY_MII_ADDR;
}
static int tg3_issue_otp_command(struct tg3 *tp, u32 cmd)
{ DBGP("%s\n", __func__);
int i;
u32 val;
tw32(OTP_CTRL, cmd | OTP_CTRL_OTP_CMD_START);
tw32(OTP_CTRL, cmd);
/* Wait for up to 1 ms for command to execute. */
for (i = 0; i < 100; i++) {
val = tr32(OTP_STATUS);
if (val & OTP_STATUS_CMD_DONE)
break;
udelay(10);
}
return (val & OTP_STATUS_CMD_DONE) ? 0 : -EBUSY;
}
/* Read the gphy configuration from the OTP region of the chip. The gphy
* configuration is a 32-bit value that straddles the alignment boundary.
* We do two 32-bit reads and then shift and merge the results.
*/
u32 tg3_read_otp_phycfg(struct tg3 *tp)
{ DBGP("%s\n", __func__);
u32 bhalf_otp, thalf_otp;
tw32(OTP_MODE, OTP_MODE_OTP_THRU_GRC);
if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_INIT))
return 0;
tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC1);
if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
return 0;
thalf_otp = tr32(OTP_READ_DATA);
tw32(OTP_ADDRESS, OTP_ADDRESS_MAGIC2);
if (tg3_issue_otp_command(tp, OTP_CTRL_OTP_CMD_READ))
return 0;
bhalf_otp = tr32(OTP_READ_DATA);
return ((thalf_otp & 0x0000ffff) << 16) | (bhalf_otp >> 16);
}
#define PHY_BUSY_LOOPS 5000
int tg3_readphy(struct tg3 *tp, int reg, u32 *val)
{ DBGP("%s\n", __func__);
u32 frame_val;
unsigned int loops;
int ret;
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE,
(tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
udelay(80);
}
*val = 0x0;
frame_val = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
MI_COM_PHY_ADDR_MASK);
frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
MI_COM_REG_ADDR_MASK);
frame_val |= (MI_COM_CMD_READ | MI_COM_START);
tw32_f(MAC_MI_COM, frame_val);
loops = PHY_BUSY_LOOPS;
while (loops != 0) {
udelay(10);
frame_val = tr32(MAC_MI_COM);
if ((frame_val & MI_COM_BUSY) == 0) {
udelay(5);
frame_val = tr32(MAC_MI_COM);
break;
}
loops -= 1;
}
ret = -EBUSY;
if (loops != 0) {
*val = frame_val & MI_COM_DATA_MASK;
ret = 0;
}
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE, tp->mi_mode);
udelay(80);
}
return ret;
}
struct subsys_tbl_ent {
u16 subsys_vendor, subsys_devid;
u32 phy_id;
};
static struct subsys_tbl_ent subsys_id_to_phy_id[] = {
/* Broadcom boards. */
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95700A6, TG3_PHY_ID_BCM5401 },
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95701A5, TG3_PHY_ID_BCM5701 },
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95700T6, TG3_PHY_ID_BCM8002 },
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95700A9, 0 },
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95701T1, TG3_PHY_ID_BCM5701 },
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95701T8, TG3_PHY_ID_BCM5701 },
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95701A7, 0 },
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95701A10, TG3_PHY_ID_BCM5701 },
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95701A12, TG3_PHY_ID_BCM5701 },
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX1, TG3_PHY_ID_BCM5703 },
{ TG3PCI_SUBVENDOR_ID_BROADCOM,
TG3PCI_SUBDEVICE_ID_BROADCOM_95703AX2, TG3_PHY_ID_BCM5703 },
/* 3com boards. */
{ TG3PCI_SUBVENDOR_ID_3COM,
TG3PCI_SUBDEVICE_ID_3COM_3C996T, TG3_PHY_ID_BCM5401 },
{ TG3PCI_SUBVENDOR_ID_3COM,
TG3PCI_SUBDEVICE_ID_3COM_3C996BT, TG3_PHY_ID_BCM5701 },
{ TG3PCI_SUBVENDOR_ID_3COM,
TG3PCI_SUBDEVICE_ID_3COM_3C996SX, 0 },
{ TG3PCI_SUBVENDOR_ID_3COM,
TG3PCI_SUBDEVICE_ID_3COM_3C1000T, TG3_PHY_ID_BCM5701 },
{ TG3PCI_SUBVENDOR_ID_3COM,
TG3PCI_SUBDEVICE_ID_3COM_3C940BR01, TG3_PHY_ID_BCM5701 },
/* DELL boards. */
{ TG3PCI_SUBVENDOR_ID_DELL,
TG3PCI_SUBDEVICE_ID_DELL_VIPER, TG3_PHY_ID_BCM5401 },
{ TG3PCI_SUBVENDOR_ID_DELL,
TG3PCI_SUBDEVICE_ID_DELL_JAGUAR, TG3_PHY_ID_BCM5401 },
{ TG3PCI_SUBVENDOR_ID_DELL,
TG3PCI_SUBDEVICE_ID_DELL_MERLOT, TG3_PHY_ID_BCM5411 },
{ TG3PCI_SUBVENDOR_ID_DELL,
TG3PCI_SUBDEVICE_ID_DELL_SLIM_MERLOT, TG3_PHY_ID_BCM5411 },
/* Compaq boards. */
{ TG3PCI_SUBVENDOR_ID_COMPAQ,
TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE, TG3_PHY_ID_BCM5701 },
{ TG3PCI_SUBVENDOR_ID_COMPAQ,
TG3PCI_SUBDEVICE_ID_COMPAQ_BANSHEE_2, TG3_PHY_ID_BCM5701 },
{ TG3PCI_SUBVENDOR_ID_COMPAQ,
TG3PCI_SUBDEVICE_ID_COMPAQ_CHANGELING, 0 },
{ TG3PCI_SUBVENDOR_ID_COMPAQ,
TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780, TG3_PHY_ID_BCM5701 },
{ TG3PCI_SUBVENDOR_ID_COMPAQ,
TG3PCI_SUBDEVICE_ID_COMPAQ_NC7780_2, TG3_PHY_ID_BCM5701 },
/* IBM boards. */
{ TG3PCI_SUBVENDOR_ID_IBM,
TG3PCI_SUBDEVICE_ID_IBM_5703SAX2, 0 }
};
static struct subsys_tbl_ent *tg3_lookup_by_subsys(struct tg3 *tp)
{ DBGP("%s\n", __func__);
int i;
DBGC(tp->dev, "Matching with: %x:%x\n", tp->subsystem_vendor, tp->subsystem_device);
for (i = 0; i < (int) ARRAY_SIZE(subsys_id_to_phy_id); i++) {
if ((subsys_id_to_phy_id[i].subsys_vendor ==
tp->subsystem_vendor) &&
(subsys_id_to_phy_id[i].subsys_devid ==
tp->subsystem_device))
return &subsys_id_to_phy_id[i];
}
return NULL;
}
int tg3_writephy(struct tg3 *tp, int reg, u32 val)
{ DBGP("%s\n", __func__);
u32 frame_val;
unsigned int loops;
int ret;
if ((tp->phy_flags & TG3_PHYFLG_IS_FET) &&
(reg == MII_TG3_CTRL || reg == MII_TG3_AUX_CTRL))
return 0;
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE,
(tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
udelay(80);
}
frame_val = ((tp->phy_addr << MI_COM_PHY_ADDR_SHIFT) &
MI_COM_PHY_ADDR_MASK);
frame_val |= ((reg << MI_COM_REG_ADDR_SHIFT) &
MI_COM_REG_ADDR_MASK);
frame_val |= (val & MI_COM_DATA_MASK);
frame_val |= (MI_COM_CMD_WRITE | MI_COM_START);
tw32_f(MAC_MI_COM, frame_val);
loops = PHY_BUSY_LOOPS;
while (loops != 0) {
udelay(10);
frame_val = tr32(MAC_MI_COM);
if ((frame_val & MI_COM_BUSY) == 0) {
udelay(5);
frame_val = tr32(MAC_MI_COM);
break;
}
loops -= 1;
}
ret = -EBUSY;
if (loops != 0)
ret = 0;
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE, tp->mi_mode);
udelay(80);
}
return ret;
}
static int tg3_bmcr_reset(struct tg3 *tp)
{ DBGP("%s\n", __func__);
u32 phy_control;
int limit, err;
/* OK, reset it, and poll the BMCR_RESET bit until it
* clears or we time out.
*/
phy_control = BMCR_RESET;
err = tg3_writephy(tp, MII_BMCR, phy_control);
if (err != 0)
return -EBUSY;
limit = 5000;
while (limit--) {
err = tg3_readphy(tp, MII_BMCR, &phy_control);
if (err != 0)
return -EBUSY;
if ((phy_control & BMCR_RESET) == 0) {
udelay(40);
break;
}
udelay(10);
}
if (limit < 0)
return -EBUSY;
return 0;
}
static int tg3_wait_macro_done(struct tg3 *tp)
{ DBGP("%s\n", __func__);
int limit = 100;
while (limit--) {
u32 tmp32;
if (!tg3_readphy(tp, MII_TG3_DSP_CONTROL, &tmp32)) {
if ((tmp32 & 0x1000) == 0)
break;
}
}
if (limit < 0)
return -EBUSY;
return 0;
}
static int tg3_phy_write_and_check_testpat(struct tg3 *tp, int *resetp)
{ DBGP("%s\n", __func__);
static const u32 test_pat[4][6] = {
{ 0x00005555, 0x00000005, 0x00002aaa, 0x0000000a, 0x00003456, 0x00000003 },
{ 0x00002aaa, 0x0000000a, 0x00003333, 0x00000003, 0x0000789a, 0x00000005 },
{ 0x00005a5a, 0x00000005, 0x00002a6a, 0x0000000a, 0x00001bcd, 0x00000003 },
{ 0x00002a5a, 0x0000000a, 0x000033c3, 0x00000003, 0x00002ef1, 0x00000005 }
};
int chan;
for (chan = 0; chan < 4; chan++) {
int i;
tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
(chan * 0x2000) | 0x0200);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0002);
for (i = 0; i < 6; i++)
tg3_writephy(tp, MII_TG3_DSP_RW_PORT,
test_pat[chan][i]);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0202);
if (tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
(chan * 0x2000) | 0x0200);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0082);
if (tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0802);
if (tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
for (i = 0; i < 6; i += 2) {
u32 low, high;
if (tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &low) ||
tg3_readphy(tp, MII_TG3_DSP_RW_PORT, &high) ||
tg3_wait_macro_done(tp)) {
*resetp = 1;
return -EBUSY;
}
low &= 0x7fff;
high &= 0x000f;
if (low != test_pat[chan][i] ||
high != test_pat[chan][i+1]) {
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000b);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4001);
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x4005);
return -EBUSY;
}
}
}
return 0;
}
static int tg3_phy_reset_chanpat(struct tg3 *tp)
{ DBGP("%s\n", __func__);
int chan;
for (chan = 0; chan < 4; chan++) {
int i;
tg3_writephy(tp, MII_TG3_DSP_ADDRESS,
(chan * 0x2000) | 0x0200);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0002);
for (i = 0; i < 6; i++)
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x000);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0202);
if (tg3_wait_macro_done(tp))
return -EBUSY;
}
return 0;
}
static int tg3_phydsp_write(struct tg3 *tp, u32 reg, u32 val)
{ DBGP("%s\n", __func__);
int err;
err = tg3_writephy(tp, MII_TG3_DSP_ADDRESS, reg);
if (!err)
err = tg3_writephy(tp, MII_TG3_DSP_RW_PORT, val);
return err;
}
static int tg3_phy_auxctl_write(struct tg3 *tp, int reg, u32 set)
{ DBGP("%s\n", __func__);
if (reg == MII_TG3_AUXCTL_SHDWSEL_MISC)
set |= MII_TG3_AUXCTL_MISC_WREN;
return tg3_writephy(tp, MII_TG3_AUX_CTRL, set | reg);
}
#define TG3_PHY_AUXCTL_SMDSP_ENABLE(tp) \
tg3_phy_auxctl_write((tp), MII_TG3_AUXCTL_SHDWSEL_AUXCTL, \
MII_TG3_AUXCTL_ACTL_SMDSP_ENA | \
MII_TG3_AUXCTL_ACTL_TX_6DB)
#define TG3_PHY_AUXCTL_SMDSP_DISABLE(tp) \
tg3_phy_auxctl_write((tp), MII_TG3_AUXCTL_SHDWSEL_AUXCTL, \
MII_TG3_AUXCTL_ACTL_TX_6DB);
static int tg3_phy_reset_5703_4_5(struct tg3 *tp)
{ DBGP("%s\n", __func__);
u32 reg32, phy9_orig;
int retries, do_phy_reset, err;
retries = 10;
do_phy_reset = 1;
do {
if (do_phy_reset) {
err = tg3_bmcr_reset(tp);
if (err)
return err;
do_phy_reset = 0;
}
/* Disable transmitter and interrupt. */
if (tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32))
continue;
reg32 |= 0x3000;
tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
/* Set full-duplex, 1000 mbps. */
tg3_writephy(tp, MII_BMCR,
BMCR_FULLDPLX | TG3_BMCR_SPEED1000);
/* Set to master mode. */
if (tg3_readphy(tp, MII_TG3_CTRL, &phy9_orig))
continue;
tg3_writephy(tp, MII_TG3_CTRL,
(MII_TG3_CTRL_AS_MASTER |
MII_TG3_CTRL_ENABLE_AS_MASTER));
err = TG3_PHY_AUXCTL_SMDSP_ENABLE(tp);
if (err)
return err;
/* Block the PHY control access. */
tg3_phydsp_write(tp, 0x8005, 0x0800);
err = tg3_phy_write_and_check_testpat(tp, &do_phy_reset);
if (!err)
break;
} while (--retries);
err = tg3_phy_reset_chanpat(tp);
if (err)
return err;
tg3_phydsp_write(tp, 0x8005, 0x0000);
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x8200);
tg3_writephy(tp, MII_TG3_DSP_CONTROL, 0x0000);
TG3_PHY_AUXCTL_SMDSP_DISABLE(tp);
tg3_writephy(tp, MII_TG3_CTRL, phy9_orig);
if (!tg3_readphy(tp, MII_TG3_EXT_CTRL, &reg32)) {
reg32 &= ~0x3000;
tg3_writephy(tp, MII_TG3_EXT_CTRL, reg32);
} else if (!err)
err = -EBUSY;
return err;
}
static void tg3_phy_apply_otp(struct tg3 *tp)
{ DBGP("%s\n", __func__);
u32 otp, phy;
if (!tp->phy_otp)
return;
otp = tp->phy_otp;
if (TG3_PHY_AUXCTL_SMDSP_ENABLE(tp))
return;
phy = ((otp & TG3_OTP_AGCTGT_MASK) >> TG3_OTP_AGCTGT_SHIFT);
phy |= MII_TG3_DSP_TAP1_AGCTGT_DFLT;
tg3_phydsp_write(tp, MII_TG3_DSP_TAP1, phy);
phy = ((otp & TG3_OTP_HPFFLTR_MASK) >> TG3_OTP_HPFFLTR_SHIFT) |
((otp & TG3_OTP_HPFOVER_MASK) >> TG3_OTP_HPFOVER_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH0, phy);
phy = ((otp & TG3_OTP_LPFDIS_MASK) >> TG3_OTP_LPFDIS_SHIFT);
phy |= MII_TG3_DSP_AADJ1CH3_ADCCKADJ;
tg3_phydsp_write(tp, MII_TG3_DSP_AADJ1CH3, phy);
phy = ((otp & TG3_OTP_VDAC_MASK) >> TG3_OTP_VDAC_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_EXP75, phy);
phy = ((otp & TG3_OTP_10BTAMP_MASK) >> TG3_OTP_10BTAMP_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_EXP96, phy);
phy = ((otp & TG3_OTP_ROFF_MASK) >> TG3_OTP_ROFF_SHIFT) |
((otp & TG3_OTP_RCOFF_MASK) >> TG3_OTP_RCOFF_SHIFT);
tg3_phydsp_write(tp, MII_TG3_DSP_EXP97, phy);
TG3_PHY_AUXCTL_SMDSP_DISABLE(tp);
}
static int tg3_phy_auxctl_read(struct tg3 *tp, int reg, u32 *val)
{ DBGP("%s\n", __func__);
int err;
err = tg3_writephy(tp, MII_TG3_AUX_CTRL,
(reg << MII_TG3_AUXCTL_MISC_RDSEL_SHIFT) |
MII_TG3_AUXCTL_SHDWSEL_MISC);
if (!err)
err = tg3_readphy(tp, MII_TG3_AUX_CTRL, val);
return err;
}
static void tg3_phy_toggle_automdix(struct tg3 *tp, int enable)
{ DBGP("%s\n", __func__);
u32 phy;
if (!tg3_flag(tp, 5705_PLUS) ||
(tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
return;
if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
u32 ephy;
if (!tg3_readphy(tp, MII_TG3_FET_TEST, &ephy)) {
u32 reg = MII_TG3_FET_SHDW_MISCCTRL;
tg3_writephy(tp, MII_TG3_FET_TEST,
ephy | MII_TG3_FET_SHADOW_EN);
if (!tg3_readphy(tp, reg, &phy)) {
if (enable)
phy |= MII_TG3_FET_SHDW_MISCCTRL_MDIX;
else
phy &= ~MII_TG3_FET_SHDW_MISCCTRL_MDIX;
tg3_writephy(tp, reg, phy);
}
tg3_writephy(tp, MII_TG3_FET_TEST, ephy);
}
} else {
int ret;
ret = tg3_phy_auxctl_read(tp,
MII_TG3_AUXCTL_SHDWSEL_MISC, &phy);
if (!ret) {
if (enable)
phy |= MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
else
phy &= ~MII_TG3_AUXCTL_MISC_FORCE_AMDIX;
tg3_phy_auxctl_write(tp,
MII_TG3_AUXCTL_SHDWSEL_MISC, phy);
}
}
}
static void tg3_phy_set_wirespeed(struct tg3 *tp)
{ DBGP("%s\n", __func__);
int ret;
u32 val;
if (tp->phy_flags & TG3_PHYFLG_NO_ETH_WIRE_SPEED)
return;
ret = tg3_phy_auxctl_read(tp, MII_TG3_AUXCTL_SHDWSEL_MISC, &val);
if (!ret)
tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_MISC,
val | MII_TG3_AUXCTL_MISC_WIRESPD_EN);
}
/* This will reset the tigon3 PHY if there is no valid
* link unless the FORCE argument is non-zero.
*/
int tg3_phy_reset(struct tg3 *tp)
{ DBGP("%s\n", __func__);
u32 val, cpmuctrl;
int err;
DBGCP(&tp->pdev->dev, "%s\n", __func__);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
val = tr32(GRC_MISC_CFG);
tw32_f(GRC_MISC_CFG, val & ~GRC_MISC_CFG_EPHY_IDDQ);
udelay(40);
}
err = tg3_readphy(tp, MII_BMSR, &val);
err |= tg3_readphy(tp, MII_BMSR, &val);
if (err != 0)
return -EBUSY;
netdev_link_down(tp->dev);
tg3_link_report(tp);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) {
err = tg3_phy_reset_5703_4_5(tp);
if (err)
return err;
goto out;
}
cpmuctrl = 0;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5784 &&
GET_CHIP_REV(tp->pci_chip_rev_id) != CHIPREV_5784_AX) {
cpmuctrl = tr32(TG3_CPMU_CTRL);
if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY)
tw32(TG3_CPMU_CTRL,
cpmuctrl & ~CPMU_CTRL_GPHY_10MB_RXONLY);
}
err = tg3_bmcr_reset(tp);
if (err)
return err;
if (cpmuctrl & CPMU_CTRL_GPHY_10MB_RXONLY) {
val = MII_TG3_DSP_EXP8_AEDW | MII_TG3_DSP_EXP8_REJ2MHz;
tg3_phydsp_write(tp, MII_TG3_DSP_EXP8, val);
tw32(TG3_CPMU_CTRL, cpmuctrl);
}
if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5761_AX) {
val = tr32(TG3_CPMU_LSPD_1000MB_CLK);
if ((val & CPMU_LSPD_1000MB_MACCLK_MASK) ==
CPMU_LSPD_1000MB_MACCLK_12_5) {
val &= ~CPMU_LSPD_1000MB_MACCLK_MASK;
udelay(40);
tw32_f(TG3_CPMU_LSPD_1000MB_CLK, val);
}
}
if (tg3_flag(tp, 5717_PLUS) &&
(tp->phy_flags & TG3_PHYFLG_MII_SERDES))
return 0;
tg3_phy_apply_otp(tp);
out:
if ((tp->phy_flags & TG3_PHYFLG_ADC_BUG) &&
!TG3_PHY_AUXCTL_SMDSP_ENABLE(tp)) {
tg3_phydsp_write(tp, 0x201f, 0x2aaa);
tg3_phydsp_write(tp, 0x000a, 0x0323);
TG3_PHY_AUXCTL_SMDSP_DISABLE(tp);
}
if (tp->phy_flags & TG3_PHYFLG_5704_A0_BUG) {
tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
}
if (tp->phy_flags & TG3_PHYFLG_BER_BUG) {
if (!TG3_PHY_AUXCTL_SMDSP_ENABLE(tp)) {
tg3_phydsp_write(tp, 0x000a, 0x310b);
tg3_phydsp_write(tp, 0x201f, 0x9506);
tg3_phydsp_write(tp, 0x401f, 0x14e2);
TG3_PHY_AUXCTL_SMDSP_DISABLE(tp);
}
} else if (tp->phy_flags & TG3_PHYFLG_JITTER_BUG) {
if (!TG3_PHY_AUXCTL_SMDSP_ENABLE(tp)) {
tg3_writephy(tp, MII_TG3_DSP_ADDRESS, 0x000a);
if (tp->phy_flags & TG3_PHYFLG_ADJUST_TRIM) {
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x110b);
tg3_writephy(tp, MII_TG3_TEST1,
MII_TG3_TEST1_TRIM_EN | 0x4);
} else
tg3_writephy(tp, MII_TG3_DSP_RW_PORT, 0x010b);
TG3_PHY_AUXCTL_SMDSP_DISABLE(tp);
}
}
if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
/* Cannot do read-modify-write on 5401 */
tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_AUXCTL, 0x4c20);
}
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5906) {
/* adjust output voltage */
tg3_writephy(tp, MII_TG3_FET_PTEST, 0x12);
}
tg3_phy_toggle_automdix(tp, 1);
tg3_phy_set_wirespeed(tp);
return 0;
}
static int tg3_copper_is_advertising_all(struct tg3 *tp, u32 mask)
{ DBGP("%s\n", __func__);
u32 adv_reg, all_mask = 0;
if (mask & ADVERTISED_10baseT_Half)
all_mask |= ADVERTISE_10HALF;
if (mask & ADVERTISED_10baseT_Full)
all_mask |= ADVERTISE_10FULL;
if (mask & ADVERTISED_100baseT_Half)
all_mask |= ADVERTISE_100HALF;
if (mask & ADVERTISED_100baseT_Full)
all_mask |= ADVERTISE_100FULL;
if (tg3_readphy(tp, MII_ADVERTISE, &adv_reg))
return 0;
if ((adv_reg & all_mask) != all_mask)
return 0;
if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY)) {
u32 tg3_ctrl;
all_mask = 0;
if (mask & ADVERTISED_1000baseT_Half)
all_mask |= ADVERTISE_1000HALF;
if (mask & ADVERTISED_1000baseT_Full)
all_mask |= ADVERTISE_1000FULL;
if (tg3_readphy(tp, MII_TG3_CTRL, &tg3_ctrl))
return 0;
if ((tg3_ctrl & all_mask) != all_mask)
return 0;
}
return 1;
}
static u16 tg3_advert_flowctrl_1000T(u8 flow_ctrl)
{ DBGP("%s\n", __func__);
u16 miireg;
if ((flow_ctrl & FLOW_CTRL_TX) && (flow_ctrl & FLOW_CTRL_RX))
miireg = ADVERTISE_PAUSE_CAP;
else if (flow_ctrl & FLOW_CTRL_TX)
miireg = ADVERTISE_PAUSE_ASYM;
else if (flow_ctrl & FLOW_CTRL_RX)
miireg = ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM;
else
miireg = 0;
return miireg;
}
static int tg3_phy_autoneg_cfg(struct tg3 *tp, u32 advertise, u32 flowctrl)
{ DBGP("%s\n", __func__);
int err = 0;
u32 val __unused, new_adv;
new_adv = ADVERTISE_CSMA;
if (advertise & ADVERTISED_10baseT_Half)
new_adv |= ADVERTISE_10HALF;
if (advertise & ADVERTISED_10baseT_Full)
new_adv |= ADVERTISE_10FULL;
if (advertise & ADVERTISED_100baseT_Half)
new_adv |= ADVERTISE_100HALF;
if (advertise & ADVERTISED_100baseT_Full)
new_adv |= ADVERTISE_100FULL;
new_adv |= tg3_advert_flowctrl_1000T(flowctrl);
err = tg3_writephy(tp, MII_ADVERTISE, new_adv);
if (err)
goto done;
if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
goto done;
new_adv = 0;
if (advertise & ADVERTISED_1000baseT_Half)
new_adv |= MII_TG3_CTRL_ADV_1000_HALF;
if (advertise & ADVERTISED_1000baseT_Full)
new_adv |= MII_TG3_CTRL_ADV_1000_FULL;
if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
tp->pci_chip_rev_id == CHIPREV_ID_5701_B0)
new_adv |= (MII_TG3_CTRL_AS_MASTER |
MII_TG3_CTRL_ENABLE_AS_MASTER);
err = tg3_writephy(tp, MII_TG3_CTRL, new_adv);
if (err)
goto done;
if (!(tp->phy_flags & TG3_PHYFLG_EEE_CAP))
goto done;
done:
return err;
}
static int tg3_init_5401phy_dsp(struct tg3 *tp)
{ DBGP("%s\n", __func__);
int err;
/* Turn off tap power management. */
/* Set Extended packet length bit */
err = tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_AUXCTL, 0x4c20);
err |= tg3_phydsp_write(tp, 0x0012, 0x1804);
err |= tg3_phydsp_write(tp, 0x0013, 0x1204);
err |= tg3_phydsp_write(tp, 0x8006, 0x0132);
err |= tg3_phydsp_write(tp, 0x8006, 0x0232);
err |= tg3_phydsp_write(tp, 0x201f, 0x0a20);
udelay(40);
return err;
}
#define ADVERTISED_Autoneg (1 << 6)
#define ADVERTISED_Pause (1 << 13)
#define ADVERTISED_TP (1 << 7)
#define ADVERTISED_FIBRE (1 << 10)
#define AUTONEG_ENABLE 0x01
static void tg3_phy_init_link_config(struct tg3 *tp)
{ DBGP("%s\n", __func__);
u32 adv = ADVERTISED_Autoneg |
ADVERTISED_Pause;
if (!(tp->phy_flags & TG3_PHYFLG_10_100_ONLY))
adv |= ADVERTISED_1000baseT_Half |
ADVERTISED_1000baseT_Full;
if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES))
adv |= ADVERTISED_100baseT_Half |
ADVERTISED_100baseT_Full |
ADVERTISED_10baseT_Half |
ADVERTISED_10baseT_Full |
ADVERTISED_TP;
else
adv |= ADVERTISED_FIBRE;
tp->link_config.advertising = adv;
tp->link_config.speed = SPEED_INVALID;
tp->link_config.duplex = DUPLEX_INVALID;
tp->link_config.autoneg = AUTONEG_ENABLE;
tp->link_config.active_speed = SPEED_INVALID;
tp->link_config.active_duplex = DUPLEX_INVALID;
tp->link_config.orig_speed = SPEED_INVALID;
tp->link_config.orig_duplex = DUPLEX_INVALID;
tp->link_config.orig_autoneg = AUTONEG_INVALID;
}
int tg3_phy_probe(struct tg3 *tp)
{ DBGP("%s\n", __func__);
u32 hw_phy_id_1, hw_phy_id_2;
u32 hw_phy_id, hw_phy_id_masked;
int err;
/* flow control autonegotiation is default behavior */
tg3_flag_set(tp, PAUSE_AUTONEG);
tp->link_config.flowctrl = FLOW_CTRL_TX | FLOW_CTRL_RX;
/* Reading the PHY ID register can conflict with ASF
* firmware access to the PHY hardware.
*/
err = 0;
if (tg3_flag(tp, ENABLE_ASF) || tg3_flag(tp, ENABLE_APE)) {
hw_phy_id = hw_phy_id_masked = TG3_PHY_ID_INVALID;
} else {
/* Now read the physical PHY_ID from the chip and verify
* that it is sane. If it doesn't look good, we fall back
* to either the hard-coded table based PHY_ID and failing
* that the value found in the eeprom area.
*/
err |= tg3_readphy(tp, MII_PHYSID1, &hw_phy_id_1);
err |= tg3_readphy(tp, MII_PHYSID2, &hw_phy_id_2);
hw_phy_id = (hw_phy_id_1 & 0xffff) << 10;
hw_phy_id |= (hw_phy_id_2 & 0xfc00) << 16;
hw_phy_id |= (hw_phy_id_2 & 0x03ff) << 0;
hw_phy_id_masked = hw_phy_id & TG3_PHY_ID_MASK;
}
if (!err && TG3_KNOWN_PHY_ID(hw_phy_id_masked)) {
tp->phy_id = hw_phy_id;
if (hw_phy_id_masked == TG3_PHY_ID_BCM8002)
tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
else
tp->phy_flags &= ~TG3_PHYFLG_PHY_SERDES;
} else {
if (tp->phy_id != TG3_PHY_ID_INVALID) {
/* Do nothing, phy ID already set up in
* tg3_get_eeprom_hw_cfg().
*/
} else {
struct subsys_tbl_ent *p;
/* No eeprom signature? Try the hardcoded
* subsys device table.
*/
p = tg3_lookup_by_subsys(tp);
if (!p) {
DBGC(&tp->pdev->dev, "lookup by subsys failed\n");
return -ENODEV;
}
tp->phy_id = p->phy_id;
if (!tp->phy_id ||
tp->phy_id == TG3_PHY_ID_BCM8002)
tp->phy_flags |= TG3_PHYFLG_PHY_SERDES;
}
}
if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES) &&
((tp->pdev->device == TG3PCI_DEVICE_TIGON3_5718 &&
tp->pci_chip_rev_id != CHIPREV_ID_5717_A0) ||
(GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_57765 &&
tp->pci_chip_rev_id != CHIPREV_ID_57765_A0)))
tp->phy_flags |= TG3_PHYFLG_EEE_CAP;
tg3_phy_init_link_config(tp);
if (!(tp->phy_flags & TG3_PHYFLG_ANY_SERDES) &&
!tg3_flag(tp, ENABLE_APE) &&
!tg3_flag(tp, ENABLE_ASF)) {
u32 bmsr;
u32 mask;
tg3_readphy(tp, MII_BMSR, &bmsr);
if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
(bmsr & BMSR_LSTATUS))
goto skip_phy_reset;
err = tg3_phy_reset(tp);
if (err)
return err;
tg3_phy_set_wirespeed(tp);
mask = (ADVERTISED_10baseT_Half | ADVERTISED_10baseT_Full |
ADVERTISED_100baseT_Half | ADVERTISED_100baseT_Full |
ADVERTISED_1000baseT_Half | ADVERTISED_1000baseT_Full);
if (!tg3_copper_is_advertising_all(tp, mask)) {
tg3_phy_autoneg_cfg(tp, tp->link_config.advertising,
tp->link_config.flowctrl);
tg3_writephy(tp, MII_BMCR,
BMCR_ANENABLE | BMCR_ANRESTART);
}
}
skip_phy_reset:
if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
err = tg3_init_5401phy_dsp(tp);
if (err)
return err;
err = tg3_init_5401phy_dsp(tp);
}
return err;
}
void tg3_poll_link(struct tg3 *tp)
{ DBGP("%s\n", __func__);
if (tp->hw_status->status & SD_STATUS_LINK_CHG) {
DBGC(tp->dev,"link_changed\n");
tp->hw_status->status &= ~SD_STATUS_LINK_CHG;
tg3_setup_phy(tp, 0);
}
}
static void tg3_aux_stat_to_speed_duplex(struct tg3 *tp, u32 val, u16 *speed, u8 *duplex)
{ DBGP("%s\n", __func__);
switch (val & MII_TG3_AUX_STAT_SPDMASK) {
case MII_TG3_AUX_STAT_10HALF:
*speed = SPEED_10;
*duplex = DUPLEX_HALF;
break;
case MII_TG3_AUX_STAT_10FULL:
*speed = SPEED_10;
*duplex = DUPLEX_FULL;
break;
case MII_TG3_AUX_STAT_100HALF:
*speed = SPEED_100;
*duplex = DUPLEX_HALF;
break;
case MII_TG3_AUX_STAT_100FULL:
*speed = SPEED_100;
*duplex = DUPLEX_FULL;
break;
case MII_TG3_AUX_STAT_1000HALF:
*speed = SPEED_1000;
*duplex = DUPLEX_HALF;
break;
case MII_TG3_AUX_STAT_1000FULL:
*speed = SPEED_1000;
*duplex = DUPLEX_FULL;
break;
default:
if (tp->phy_flags & TG3_PHYFLG_IS_FET) {
*speed = (val & MII_TG3_AUX_STAT_100) ? SPEED_100 :
SPEED_10;
*duplex = (val & MII_TG3_AUX_STAT_FULL) ? DUPLEX_FULL :
DUPLEX_HALF;
break;
}
*speed = SPEED_INVALID;
*duplex = DUPLEX_INVALID;
break;
}
}
static int tg3_adv_1000T_flowctrl_ok(struct tg3 *tp, u32 *lcladv, u32 *rmtadv)
{ DBGP("%s\n", __func__);
u32 curadv, reqadv;
if (tg3_readphy(tp, MII_ADVERTISE, lcladv))
return 1;
curadv = *lcladv & (ADVERTISE_PAUSE_CAP | ADVERTISE_PAUSE_ASYM);
reqadv = tg3_advert_flowctrl_1000T(tp->link_config.flowctrl);
if (tp->link_config.active_duplex == DUPLEX_FULL) {
if (curadv != reqadv)
return 0;
if (tg3_flag(tp, PAUSE_AUTONEG))
tg3_readphy(tp, MII_LPA, rmtadv);
} else {
/* Reprogram the advertisement register, even if it
* does not affect the current link. If the link
* gets renegotiated in the future, we can save an
* additional renegotiation cycle by advertising
* it correctly in the first place.
*/
if (curadv != reqadv) {
*lcladv &= ~(ADVERTISE_PAUSE_CAP |
ADVERTISE_PAUSE_ASYM);
tg3_writephy(tp, MII_ADVERTISE, *lcladv | reqadv);
}
}
return 1;
}
static u8 tg3_resolve_flowctrl_1000X(u16 lcladv, u16 rmtadv)
{ DBGP("%s\n", __func__);
u8 cap = 0;
if (lcladv & ADVERTISE_1000XPAUSE) {
if (lcladv & ADVERTISE_1000XPSE_ASYM) {
if (rmtadv & LPA_1000XPAUSE)
cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
else if (rmtadv & LPA_1000XPAUSE_ASYM)
cap = FLOW_CTRL_RX;
} else {
if (rmtadv & LPA_1000XPAUSE)
cap = FLOW_CTRL_TX | FLOW_CTRL_RX;
}
} else if (lcladv & ADVERTISE_1000XPSE_ASYM) {
if ((rmtadv & LPA_1000XPAUSE) && (rmtadv & LPA_1000XPAUSE_ASYM))
cap = FLOW_CTRL_TX;
}
return cap;
}
static void tg3_setup_flow_control(struct tg3 *tp, u32 lcladv, u32 rmtadv)
{ DBGP("%s\n", __func__);
u8 flowctrl = 0;
u32 old_rx_mode = tp->rx_mode;
u32 old_tx_mode = tp->tx_mode;
if (tg3_flag(tp, PAUSE_AUTONEG)) {
if (tp->phy_flags & TG3_PHYFLG_ANY_SERDES)
flowctrl = tg3_resolve_flowctrl_1000X(lcladv, rmtadv);
else
flowctrl = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
} else
flowctrl = tp->link_config.flowctrl;
tp->link_config.active_flowctrl = flowctrl;
if (flowctrl & FLOW_CTRL_RX)
tp->rx_mode |= RX_MODE_FLOW_CTRL_ENABLE;
else
tp->rx_mode &= ~RX_MODE_FLOW_CTRL_ENABLE;
if (old_rx_mode != tp->rx_mode)
tw32_f(MAC_RX_MODE, tp->rx_mode);
if (flowctrl & FLOW_CTRL_TX)
tp->tx_mode |= TX_MODE_FLOW_CTRL_ENABLE;
else
tp->tx_mode &= ~TX_MODE_FLOW_CTRL_ENABLE;
if (old_tx_mode != tp->tx_mode)
tw32_f(MAC_TX_MODE, tp->tx_mode);
}
static void tg3_phy_copper_begin(struct tg3 *tp)
{ DBGP("%s\n", __func__);
u32 new_adv;
if (tp->link_config.speed == SPEED_INVALID) {
if (tp->phy_flags & TG3_PHYFLG_10_100_ONLY)
tp->link_config.advertising &=
~(ADVERTISED_1000baseT_Half |
ADVERTISED_1000baseT_Full);
tg3_phy_autoneg_cfg(tp, tp->link_config.advertising,
tp->link_config.flowctrl);
} else {
/* Asking for a specific link mode. */
if (tp->link_config.speed == SPEED_1000) {
if (tp->link_config.duplex == DUPLEX_FULL)
new_adv = ADVERTISED_1000baseT_Full;
else
new_adv = ADVERTISED_1000baseT_Half;
} else if (tp->link_config.speed == SPEED_100) {
if (tp->link_config.duplex == DUPLEX_FULL)
new_adv = ADVERTISED_100baseT_Full;
else
new_adv = ADVERTISED_100baseT_Half;
} else {
if (tp->link_config.duplex == DUPLEX_FULL)
new_adv = ADVERTISED_10baseT_Full;
else
new_adv = ADVERTISED_10baseT_Half;
}
tg3_phy_autoneg_cfg(tp, new_adv,
tp->link_config.flowctrl);
}
tg3_writephy(tp, MII_BMCR, BMCR_ANENABLE | BMCR_ANRESTART);
}
static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
{ DBGP("%s\n", __func__);
if (tp->led_ctrl == LED_CTRL_MODE_PHY_2)
return 1;
else if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411) {
if (speed != SPEED_10)
return 1;
} else if (speed == SPEED_10)
return 1;
return 0;
}
#if 1
static void tg3_ump_link_report(struct tg3 *tp)
{ DBGP("%s\n", __func__);
u32 reg;
u32 val;
if (!tg3_flag(tp, 5780_CLASS) || !tg3_flag(tp, ENABLE_ASF))
return;
tg3_wait_for_event_ack(tp);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_MBOX, FWCMD_NICDRV_LINK_UPDATE);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_LEN_MBOX, 14);
val = 0;
if (!tg3_readphy(tp, MII_BMCR, &reg))
val = reg << 16;
if (!tg3_readphy(tp, MII_BMSR, &reg))
val |= (reg & 0xffff);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX, val);
val = 0;
if (!tg3_readphy(tp, MII_ADVERTISE, &reg))
val = reg << 16;
if (!tg3_readphy(tp, MII_LPA, &reg))
val |= (reg & 0xffff);
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 4, val);
val = 0;
if (!(tp->phy_flags & TG3_PHYFLG_MII_SERDES)) {
if (!tg3_readphy(tp, MII_CTRL1000, &reg))
val = reg << 16;
if (!tg3_readphy(tp, MII_STAT1000, &reg))
val |= (reg & 0xffff);
}
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 8, val);
if (!tg3_readphy(tp, MII_PHYADDR, &reg))
val = reg << 16;
else
val = 0;
tg3_write_mem(tp, NIC_SRAM_FW_CMD_DATA_MBOX + 12, val);
tg3_generate_fw_event(tp);
}
/* NOTE: Debugging only code */
static void tg3_link_report(struct tg3 *tp)
{ DBGP("%s\n", __func__);
if (!netdev_link_ok(tp->dev)) {
DBGC(tp->dev, "Link is down\n");
tg3_ump_link_report(tp);
} else {
DBGC(tp->dev, "Link is up at %d Mbps, %s duplex\n",
(tp->link_config.active_speed == SPEED_1000 ?
1000 :
(tp->link_config.active_speed == SPEED_100 ?
100 : 10)),
(tp->link_config.active_duplex == DUPLEX_FULL ?
"full" : "half"));
DBGC(tp->dev, "Flow control is %s for TX and %s for RX\n",
(tp->link_config.active_flowctrl & FLOW_CTRL_TX) ?
"on" : "off",
(tp->link_config.active_flowctrl & FLOW_CTRL_RX) ?
"on" : "off");
if (tp->phy_flags & TG3_PHYFLG_EEE_CAP)
DBGC(tp->dev, "EEE is %s\n",
tp->setlpicnt ? "enabled" : "disabled");
tg3_ump_link_report(tp);
}
}
#endif
static int tg3_setup_copper_phy(struct tg3 *tp, int force_reset)
{ DBGP("%s\n", __func__);
int current_link_up;
u32 bmsr, val;
u32 lcl_adv, rmt_adv;
u16 current_speed;
u8 current_duplex;
int i, err;
tw32(MAC_EVENT, 0);
tw32_f(MAC_STATUS,
(MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED |
MAC_STATUS_MI_COMPLETION |
MAC_STATUS_LNKSTATE_CHANGED));
udelay(40);
if ((tp->mi_mode & MAC_MI_MODE_AUTO_POLL) != 0) {
tw32_f(MAC_MI_MODE,
(tp->mi_mode & ~MAC_MI_MODE_AUTO_POLL));
udelay(80);
}
tg3_phy_auxctl_write(tp, MII_TG3_AUXCTL_SHDWSEL_PWRCTL, 0);
/* Some third-party PHYs need to be reset on link going
* down.
*/
if ((GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5703 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5705) &&
netdev_link_ok(tp->dev)) {
tg3_readphy(tp, MII_BMSR, &bmsr);
if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
!(bmsr & BMSR_LSTATUS))
force_reset = 1;
}
if (force_reset)
tg3_phy_reset(tp);
if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5401) {
tg3_readphy(tp, MII_BMSR, &bmsr);
if (tg3_readphy(tp, MII_BMSR, &bmsr) ||
!tg3_flag(tp, INIT_COMPLETE))
bmsr = 0;
if (!(bmsr & BMSR_LSTATUS)) {
err = tg3_init_5401phy_dsp(tp);
if (err)
return err;
tg3_readphy(tp, MII_BMSR, &bmsr);
for (i = 0; i < 1000; i++) {
udelay(10);
if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
(bmsr & BMSR_LSTATUS)) {
udelay(40);
break;
}
}
if ((tp->phy_id & TG3_PHY_ID_REV_MASK) ==
TG3_PHY_REV_BCM5401_B0 &&
!(bmsr & BMSR_LSTATUS) &&
tp->link_config.active_speed == SPEED_1000) {
err = tg3_phy_reset(tp);
if (!err)
err = tg3_init_5401phy_dsp(tp);
if (err)
return err;
}
}
} else if (tp->pci_chip_rev_id == CHIPREV_ID_5701_A0 ||
tp->pci_chip_rev_id == CHIPREV_ID_5701_B0) {
/* 5701 {A0,B0} CRC bug workaround */
tg3_writephy(tp, 0x15, 0x0a75);
tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8c68);
tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8d68);
tg3_writephy(tp, MII_TG3_MISC_SHDW, 0x8c68);
}
/* Clear pending interrupts... */
tg3_readphy(tp, MII_TG3_ISTAT, &val);
tg3_readphy(tp, MII_TG3_ISTAT, &val);
if (tp->phy_flags & TG3_PHYFLG_USE_MI_INTERRUPT)
tg3_writephy(tp, MII_TG3_IMASK, ~MII_TG3_INT_LINKCHG);
else if (!(tp->phy_flags & TG3_PHYFLG_IS_FET))
tg3_writephy(tp, MII_TG3_IMASK, ~0);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5701) {
if (tp->led_ctrl == LED_CTRL_MODE_PHY_1)
tg3_writephy(tp, MII_TG3_EXT_CTRL,
MII_TG3_EXT_CTRL_LNK3_LED_MODE);
else
tg3_writephy(tp, MII_TG3_EXT_CTRL, 0);
}
current_link_up = 0;
current_speed = SPEED_INVALID;
current_duplex = DUPLEX_INVALID;
if (tp->phy_flags & TG3_PHYFLG_CAPACITIVE_COUPLING) {
err = tg3_phy_auxctl_read(tp,
MII_TG3_AUXCTL_SHDWSEL_MISCTEST,
&val);
if (!err && !(val & (1 << 10))) {
tg3_phy_auxctl_write(tp,
MII_TG3_AUXCTL_SHDWSEL_MISCTEST,
val | (1 << 10));
goto relink;
}
}
bmsr = 0;
for (i = 0; i < 100; i++) {
tg3_readphy(tp, MII_BMSR, &bmsr);
if (!tg3_readphy(tp, MII_BMSR, &bmsr) &&
(bmsr & BMSR_LSTATUS))
break;
udelay(40);
}
if (bmsr & BMSR_LSTATUS) {
u32 aux_stat, bmcr;
tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat);
for (i = 0; i < 2000; i++) {
udelay(10);
if (!tg3_readphy(tp, MII_TG3_AUX_STAT, &aux_stat) &&
aux_stat)
break;
}
tg3_aux_stat_to_speed_duplex(tp, aux_stat,
&current_speed,
&current_duplex);
bmcr = 0;
for (i = 0; i < 200; i++) {
tg3_readphy(tp, MII_BMCR, &bmcr);
if (tg3_readphy(tp, MII_BMCR, &bmcr))
continue;
if (bmcr && bmcr != 0x7fff)
break;
udelay(10);
}
lcl_adv = 0;
rmt_adv = 0;
tp->link_config.active_speed = current_speed;
tp->link_config.active_duplex = current_duplex;
if ((bmcr & BMCR_ANENABLE) &&
tg3_copper_is_advertising_all(tp,
tp->link_config.advertising)) {
if (tg3_adv_1000T_flowctrl_ok(tp, &lcl_adv,
&rmt_adv)) {
current_link_up = 1;
}
}
if (current_link_up == 1 &&
tp->link_config.active_duplex == DUPLEX_FULL)
tg3_setup_flow_control(tp, lcl_adv, rmt_adv);
}
relink:
if (current_link_up == 0) {
tg3_phy_copper_begin(tp);
tg3_readphy(tp, MII_BMSR, &bmsr);
if ((!tg3_readphy(tp, MII_BMSR, &bmsr) && (bmsr & BMSR_LSTATUS)) ||
(tp->mac_mode & MAC_MODE_PORT_INT_LPBACK))
current_link_up = 1;
}
tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
if (current_link_up == 1) {
if (tp->link_config.active_speed == SPEED_100 ||
tp->link_config.active_speed == SPEED_10)
tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
else
tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
} else if (tp->phy_flags & TG3_PHYFLG_IS_FET)
tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
else
tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
tp->mac_mode &= ~MAC_MODE_HALF_DUPLEX;
if (tp->link_config.active_duplex == DUPLEX_HALF)
tp->mac_mode |= MAC_MODE_HALF_DUPLEX;
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700) {
if (current_link_up == 1 &&
tg3_5700_link_polarity(tp, tp->link_config.active_speed))
tp->mac_mode |= MAC_MODE_LINK_POLARITY;
else
tp->mac_mode &= ~MAC_MODE_LINK_POLARITY;
}
/* ??? Without this setting Netgear GA302T PHY does not
* ??? send/receive packets...
*/
if ((tp->phy_id & TG3_PHY_ID_MASK) == TG3_PHY_ID_BCM5411 &&
tp->pci_chip_rev_id == CHIPREV_ID_5700_ALTIMA) {
tp->mi_mode |= MAC_MI_MODE_AUTO_POLL;
tw32_f(MAC_MI_MODE, tp->mi_mode);
udelay(80);
}
tw32_f(MAC_MODE, tp->mac_mode);
udelay(40);
/* Enabled attention when the link has changed state. */
tw32_f(MAC_EVENT, MAC_EVENT_LNKSTATE_CHANGED);
udelay(40);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 &&
current_link_up == 1 &&
tp->link_config.active_speed == SPEED_1000 &&
(tg3_flag(tp, PCIX_MODE) || tg3_flag(tp, PCI_HIGH_SPEED))) {
udelay(120);
/* NOTE: this freezes for mdc? */
tw32_f(MAC_STATUS,
(MAC_STATUS_SYNC_CHANGED |
MAC_STATUS_CFG_CHANGED));
udelay(40);
tg3_write_mem(tp,
NIC_SRAM_FIRMWARE_MBOX,
NIC_SRAM_FIRMWARE_MBOX_MAGIC2);
}
/* Prevent send BD corruption. */
if (tg3_flag(tp, CLKREQ_BUG)) {
u16 oldlnkctl, newlnkctl;
pci_read_config_word(tp->pdev,
tp->pcie_cap + PCI_EXP_LNKCTL,
&oldlnkctl);
if (tp->link_config.active_speed == SPEED_100 ||
tp->link_config.active_speed == SPEED_10)
newlnkctl = oldlnkctl & ~PCI_EXP_LNKCTL_CLKREQ_EN;
else
newlnkctl = oldlnkctl | PCI_EXP_LNKCTL_CLKREQ_EN;
if (newlnkctl != oldlnkctl)
pci_write_config_word(tp->pdev,
tp->pcie_cap + PCI_EXP_LNKCTL,
newlnkctl);
}
if (current_link_up != netdev_link_ok(tp->dev)) {
if (current_link_up)
netdev_link_up(tp->dev);
else
netdev_link_down(tp->dev);
tg3_link_report(tp);
}
return 0;
}
int tg3_setup_phy(struct tg3 *tp, int force_reset)
{ DBGP("%s\n", __func__);
u32 val;
int err;
#if 0
if (tp->phy_flags & TG3_PHYFLG_PHY_SERDES)
err = tg3_setup_fiber_phy(tp, force_reset);
else if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
err = tg3_setup_fiber_mii_phy(tp, force_reset);
else
#endif
/* FIXME: add only copper phy variants for now */
err = tg3_setup_copper_phy(tp, force_reset);
val = (2 << TX_LENGTHS_IPG_CRS_SHIFT) |
(6 << TX_LENGTHS_IPG_SHIFT);
if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720)
val |= tr32(MAC_TX_LENGTHS) &
(TX_LENGTHS_JMB_FRM_LEN_MSK |
TX_LENGTHS_CNT_DWN_VAL_MSK);
if (tp->link_config.active_speed == SPEED_1000 &&
tp->link_config.active_duplex == DUPLEX_HALF)
tw32(MAC_TX_LENGTHS, val |
(0xff << TX_LENGTHS_SLOT_TIME_SHIFT));
else
tw32(MAC_TX_LENGTHS, val |
(32 << TX_LENGTHS_SLOT_TIME_SHIFT));
if (!tg3_flag(tp, 5705_PLUS)) {
if (netdev_link_ok(tp->dev)) {
tw32(HOSTCC_STAT_COAL_TICKS, DEFAULT_STAT_COAL_TICKS);
} else {
tw32(HOSTCC_STAT_COAL_TICKS, 0);
}
}
val = tr32(PCIE_PWR_MGMT_THRESH);
if (!netdev_link_ok(tp->dev))
val = (val & ~PCIE_PWR_MGMT_L1_THRESH_MSK);
else
val |= PCIE_PWR_MGMT_L1_THRESH_MSK;
tw32(PCIE_PWR_MGMT_THRESH, val);
return err;
}
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