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[SUNGEM]: PHY updates & pause fixes (#2) 

This patch adds support for a few more PHYs used by Apple and fixes
advertising and detecting of Pause (we were missing setting the bit in
MII_ADVERTISE and weren't testing in LPA for all PHYs).

Note that I currently only advertise pause, not asymetric pause. I
don't know for sure the details there, I suppose I should read a bit
more 802.3 references, and I don't now what sungem is capable of, but
I noticed the PCS code (originated from you) does the same.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Benjamin Herrenschmidt 2007-01-03 18:54:43 -08:00 committed by David S. Miller
parent 7f18ba6248
commit 63ea998a26
3 changed files with 163 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/sungem.c
View File

@ -90,7 +90,8 @@
#define ADVERTISE_MASK (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \
SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \
SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full)
SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full | \
SUPPORTED_Pause | SUPPORTED_Autoneg)
#define DRV_NAME "sungem"
#define DRV_VERSION "0.98"

179
drivers/net/sungem_phy.c
View File

@ -3,10 +3,9 @@
*
* This file could be shared with other drivers.
*
* (c) 2002, Benjamin Herrenscmidt (benh@kernel.crashing.org)
* (c) 2002-2007, Benjamin Herrenscmidt (benh@kernel.crashing.org)
*
* TODO:
* - Implement WOL
* - Add support for PHYs that provide an IRQ line
* - Eventually moved the entire polling state machine in
* there (out of the eth driver), so that it can easily be
@ -152,6 +151,44 @@ static int bcm5221_suspend(struct mii_phy* phy)
return 0;
}
static int bcm5241_init(struct mii_phy* phy)
{
u16 data;
data = phy_read(phy, MII_BCM5221_TEST);
phy_write(phy, MII_BCM5221_TEST,
data | MII_BCM5221_TEST_ENABLE_SHADOWS);
data = phy_read(phy, MII_BCM5221_SHDOW_AUX_STAT2);
phy_write(phy, MII_BCM5221_SHDOW_AUX_STAT2,
data | MII_BCM5221_SHDOW_AUX_STAT2_APD);
data = phy_read(phy, MII_BCM5221_SHDOW_AUX_MODE4);
phy_write(phy, MII_BCM5221_SHDOW_AUX_MODE4,
data & ~MII_BCM5241_SHDOW_AUX_MODE4_STANDBYPWR);
data = phy_read(phy, MII_BCM5221_TEST);
phy_write(phy, MII_BCM5221_TEST,
data & ~MII_BCM5221_TEST_ENABLE_SHADOWS);
return 0;
}
static int bcm5241_suspend(struct mii_phy* phy)
{
u16 data;
data = phy_read(phy, MII_BCM5221_TEST);
phy_write(phy, MII_BCM5221_TEST,
data | MII_BCM5221_TEST_ENABLE_SHADOWS);
data = phy_read(phy, MII_BCM5221_SHDOW_AUX_MODE4);
phy_write(phy, MII_BCM5221_SHDOW_AUX_MODE4,
data | MII_BCM5241_SHDOW_AUX_MODE4_STANDBYPWR);
return 0;
}
static int bcm5400_init(struct mii_phy* phy)
{
u16 data;
@ -373,6 +410,10 @@ static int bcm54xx_setup_aneg(struct mii_phy *phy, u32 advertise)
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 */
@ -436,12 +477,15 @@ static int bcm54xx_read_link(struct mii_phy *phy)
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->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);
(phy_BCM5400_link_table[link_mode][1] ?
SPEED_100 : SPEED_10);
val = phy_read(phy, MII_LPA);
phy->pause = ((val & LPA_PAUSE) != 0);
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
@ -450,6 +494,28 @@ static int bcm54xx_read_link(struct mii_phy *phy)
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;
}
static int marvell_setup_aneg(struct mii_phy *phy, u32 advertise)
{
u16 ctl, adv;
@ -471,6 +537,10 @@ static int marvell_setup_aneg(struct mii_phy *phy, u32 advertise)
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
@ -549,7 +619,7 @@ static int marvell_setup_forced(struct mii_phy *phy, int speed, int fd)
static int marvell_read_link(struct mii_phy *phy)
{
u16 status;
u16 status, pmask;
if (phy->autoneg) {
status = phy_read(phy, MII_M1011_PHY_SPEC_STATUS);
@ -565,7 +635,9 @@ static int marvell_read_link(struct mii_phy *phy)
phy->duplex = DUPLEX_FULL;
else
phy->duplex = DUPLEX_HALF;
phy->pause = 0; /* XXX Check against spec ! */
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
@ -595,6 +667,10 @@ static int genmii_setup_aneg(struct mii_phy *phy, u32 advertise)
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);
/* Start/Restart aneg */
@ -666,7 +742,8 @@ static int genmii_read_link(struct mii_phy *phy)
phy->speed = SPEED_100;
else
phy->speed = SPEED_10;
phy->pause = 0;
phy->pause = (phy->duplex == DUPLEX_FULL) &&
((lpa & 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
@ -676,11 +753,19 @@ static int genmii_read_link(struct mii_phy *phy)
}
#define MII_BASIC_FEATURES (SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | \
SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | \
SUPPORTED_Autoneg | SUPPORTED_TP | SUPPORTED_MII)
#define MII_GBIT_FEATURES (MII_BASIC_FEATURES | \
SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full)
#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 = {
@ -720,6 +805,24 @@ static struct mii_phy_def bcm5221_phy_def = {
.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,
@ -854,11 +957,8 @@ static struct mii_phy_def bcm5462V_phy_def = {
.ops = &bcm5462V_phy_ops
};
/* Marvell 88E1101 (Apple seem to deal with 2 different revs,
* I masked out the 8 last bits to get both, but some specs
* would be useful here) --BenH.
*/
static struct mii_phy_ops marvell_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,
@ -866,13 +966,41 @@ static struct mii_phy_ops marvell_phy_ops = {
.read_link = marvell_read_link
};
static struct mii_phy_def marvell_phy_def = {
.phy_id = 0x01410c00,
.phy_id_mask = 0xffffff00,
.name = "Marvell 88E1101",
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 = &marvell_phy_ops
.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 */
@ -895,6 +1023,7 @@ static struct mii_phy_def genmii_phy_def = {
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,
@ -902,7 +1031,9 @@ static struct mii_phy_def* mii_phy_table[] = {
&bcm5421k2_phy_def,
&bcm5461_phy_def,
&bcm5462V_phy_def,
&marvell_phy_def,
&marvell88e1101v1_phy_def,
&marvell88e1101v2_phy_def,
&marvell88e1111_phy_def,
&genmii_phy_def,
NULL
};

7
drivers/net/sungem_phy.h
View File

@ -30,7 +30,7 @@ struct mii_phy_def
struct mii_phy
{
struct mii_phy_def* def;
int advertising;
u32 advertising;
int mii_id;
/* 1: autoneg enabled, 0: disabled */
@ -85,6 +85,9 @@ extern int mii_phy_probe(struct mii_phy *phy, int mii_id);
#define MII_BCM5221_SHDOW_AUX_MODE4_IDDQMODE 0x0001
#define MII_BCM5221_SHDOW_AUX_MODE4_CLKLOPWR 0x0004
/* MII BCM5241 Additional registers */
#define MII_BCM5241_SHDOW_AUX_MODE4_STANDBYPWR 0x0008
/* MII BCM5400 1000-BASET Control register */
#define MII_BCM5400_GB_CONTROL 0x09
#define MII_BCM5400_GB_CONTROL_FULLDUPLEXCAP 0x0200
@ -115,5 +118,7 @@ extern int mii_phy_probe(struct mii_phy *phy, int mii_id);
#define MII_M1011_PHY_SPEC_STATUS_SPD_MASK 0xc000
#define MII_M1011_PHY_SPEC_STATUS_FULLDUPLEX 0x2000
#define MII_M1011_PHY_SPEC_STATUS_RESOLVED 0x0800
#define MII_M1011_PHY_SPEC_STATUS_TX_PAUSE 0x0008
#define MII_M1011_PHY_SPEC_STATUS_RX_PAUSE 0x0004
#endif /* __SUNGEM_PHY_H__ */