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sky2: fix LED management

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Fix problems in LED management, so ethtool -p works correctly on Yukon-EC
and other chips. The driver was incorrectly setting the PHY LED overide bits.
Moral: read the spec sheet, not the vendor driver.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Stephen Hemminger 2008-02-22 16:00:33 -08:00 committed by Jeff Garzik
parent f11cf25ef3
commit a84d0a3d69
2 changed files with 75 additions and 73 deletions
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123
drivers/net/sky2.c
View file

@ -572,8 +572,9 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
default: default:
/* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */ /* set Tx LED (LED_TX) to blink mode on Rx OR Tx activity */
ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL; ledctrl |= PHY_M_LED_BLINK_RT(BLINK_84MS) | PHY_M_LEDC_TX_CTRL;
/* turn off the Rx LED (LED_RX) */ /* turn off the Rx LED (LED_RX) */
ledover &= ~PHY_M_LED_MO_RX; ledover |= PHY_M_LED_MO_RX(MO_LED_OFF);
} }
if (hw->chip_id == CHIP_ID_YUKON_EC_U && if (hw->chip_id == CHIP_ID_YUKON_EC_U &&
@ -602,7 +603,7 @@ static void sky2_phy_init(struct sky2_hw *hw, unsigned port)
if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) { if (sky2->autoneg == AUTONEG_DISABLE || sky2->speed == SPEED_100) {
/* turn on 100 Mbps LED (LED_LINK100) */ /* turn on 100 Mbps LED (LED_LINK100) */
ledover |= PHY_M_LED_MO_100; ledover |= PHY_M_LED_MO_100(MO_LED_ON);
} }
if (ledover) if (ledover)
@ -3322,82 +3323,80 @@ static void sky2_set_multicast(struct net_device *dev)
/* Can have one global because blinking is controlled by /* Can have one global because blinking is controlled by
* ethtool and that is always under RTNL mutex * ethtool and that is always under RTNL mutex
*/ */
static void sky2_led(struct sky2_hw *hw, unsigned port, int on) static void sky2_led(struct sky2_port *sky2, enum led_mode mode)
{ {
u16 pg; struct sky2_hw *hw = sky2->hw;
unsigned port = sky2->port;
switch (hw->chip_id) { spin_lock_bh(&sky2->phy_lock);
case CHIP_ID_YUKON_XL: if (hw->chip_id == CHIP_ID_YUKON_EC_U ||
hw->chip_id == CHIP_ID_YUKON_EX ||
hw->chip_id == CHIP_ID_YUKON_SUPR) {
u16 pg;
pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
on ? (PHY_M_LEDC_LOS_CTRL(1) | switch (mode) {
PHY_M_LEDC_INIT_CTRL(7) | case MO_LED_OFF:
PHY_M_LEDC_STA1_CTRL(7) | gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
PHY_M_LEDC_STA0_CTRL(7)) PHY_M_LEDC_LOS_CTRL(8) |
: 0); PHY_M_LEDC_INIT_CTRL(8) |
PHY_M_LEDC_STA1_CTRL(8) |
PHY_M_LEDC_STA0_CTRL(8));
break;
case MO_LED_ON:
gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
PHY_M_LEDC_LOS_CTRL(9) |
PHY_M_LEDC_INIT_CTRL(9) |
PHY_M_LEDC_STA1_CTRL(9) |
PHY_M_LEDC_STA0_CTRL(9));
break;
case MO_LED_BLINK:
gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
PHY_M_LEDC_LOS_CTRL(0xa) |
PHY_M_LEDC_INIT_CTRL(0xa) |
PHY_M_LEDC_STA1_CTRL(0xa) |
PHY_M_LEDC_STA0_CTRL(0xa));
break;
case MO_LED_NORM:
gm_phy_write(hw, port, PHY_MARV_PHY_CTRL,
PHY_M_LEDC_LOS_CTRL(1) |
PHY_M_LEDC_INIT_CTRL(8) |
PHY_M_LEDC_STA1_CTRL(7) |
PHY_M_LEDC_STA0_CTRL(7));
}
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
break; } else
default:
gm_phy_write(hw, port, PHY_MARV_LED_CTRL, 0);
gm_phy_write(hw, port, PHY_MARV_LED_OVER, gm_phy_write(hw, port, PHY_MARV_LED_OVER,
on ? PHY_M_LED_ALL : 0); PHY_M_LED_MO_DUP(mode) |
} PHY_M_LED_MO_10(mode) |
PHY_M_LED_MO_100(mode) |
PHY_M_LED_MO_1000(mode) |
PHY_M_LED_MO_RX(mode) |
PHY_M_LED_MO_TX(mode));
spin_unlock_bh(&sky2->phy_lock);
} }
/* blink LED's for finding board */ /* blink LED's for finding board */
static int sky2_phys_id(struct net_device *dev, u32 data) static int sky2_phys_id(struct net_device *dev, u32 data)
{ {
struct sky2_port *sky2 = netdev_priv(dev); struct sky2_port *sky2 = netdev_priv(dev);
struct sky2_hw *hw = sky2->hw; unsigned int i;
unsigned port = sky2->port;
u16 ledctrl, ledover = 0;
long ms;
int interrupted;
int onoff = 1;
if (!data || data > (u32) (MAX_SCHEDULE_TIMEOUT / HZ)) if (data == 0)
ms = jiffies_to_msecs(MAX_SCHEDULE_TIMEOUT); data = UINT_MAX;
else
ms = data * 1000;
/* save initial values */ for (i = 0; i < data; i++) {
spin_lock_bh(&sky2->phy_lock); sky2_led(sky2, MO_LED_ON);
if (hw->chip_id == CHIP_ID_YUKON_XL) { if (msleep_interruptible(500))
u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR); break;
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3); sky2_led(sky2, MO_LED_OFF);
ledctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); if (msleep_interruptible(500))
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg); break;
} else {
ledctrl = gm_phy_read(hw, port, PHY_MARV_LED_CTRL);
ledover = gm_phy_read(hw, port, PHY_MARV_LED_OVER);
} }
sky2_led(sky2, MO_LED_NORM);
interrupted = 0;
while (!interrupted && ms > 0) {
sky2_led(hw, port, onoff);
onoff = !onoff;
spin_unlock_bh(&sky2->phy_lock);
interrupted = msleep_interruptible(250);
spin_lock_bh(&sky2->phy_lock);
ms -= 250;
}
/* resume regularly scheduled programming */
if (hw->chip_id == CHIP_ID_YUKON_XL) {
u16 pg = gm_phy_read(hw, port, PHY_MARV_EXT_ADR);
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 3);
gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ledctrl);
gm_phy_write(hw, port, PHY_MARV_EXT_ADR, pg);
} else {
gm_phy_write(hw, port, PHY_MARV_LED_CTRL, ledctrl);
gm_phy_write(hw, port, PHY_MARV_LED_OVER, ledover);
}
spin_unlock_bh(&sky2->phy_lock);
return 0; return 0;
} }

25
drivers/net/sky2.h
View file

@ -1318,18 +1318,21 @@ enum {
BLINK_670MS = 4,/* 670 ms */ BLINK_670MS = 4,/* 670 ms */
}; };
/**** PHY_MARV_LED_OVER 16 bit r/w LED control */ /***** PHY_MARV_LED_OVER 16 bit r/w Manual LED Override Reg *****/
enum { #define PHY_M_LED_MO_SGMII(x) ((x)<<14) /* Bit 15..14: SGMII AN Timer */
PHY_M_LED_MO_DUP = 3<<10,/* Bit 11..10: Duplex */
PHY_M_LED_MO_10 = 3<<8, /* Bit 9.. 8: Link 10 */
PHY_M_LED_MO_100 = 3<<6, /* Bit 7.. 6: Link 100 */
PHY_M_LED_MO_1000 = 3<<4, /* Bit 5.. 4: Link 1000 */
PHY_M_LED_MO_RX = 3<<2, /* Bit 3.. 2: Rx */
PHY_M_LED_MO_TX = 3<<0, /* Bit 1.. 0: Tx */
PHY_M_LED_ALL = PHY_M_LED_MO_DUP | PHY_M_LED_MO_10 #define PHY_M_LED_MO_DUP(x) ((x)<<10) /* Bit 11..10: Duplex */
| PHY_M_LED_MO_100 | PHY_M_LED_MO_1000 #define PHY_M_LED_MO_10(x) ((x)<<8) /* Bit 9.. 8: Link 10 */
| PHY_M_LED_MO_RX, #define PHY_M_LED_MO_100(x) ((x)<<6) /* Bit 7.. 6: Link 100 */
#define PHY_M_LED_MO_1000(x) ((x)<<4) /* Bit 5.. 4: Link 1000 */
#define PHY_M_LED_MO_RX(x) ((x)<<2) /* Bit 3.. 2: Rx */
#define PHY_M_LED_MO_TX(x) ((x)<<0) /* Bit 1.. 0: Tx */
enum led_mode {
MO_LED_NORM = 0,
MO_LED_BLINK = 1,
MO_LED_OFF = 2,
MO_LED_ON = 3,
}; };
/***** PHY_MARV_EXT_CTRL_2 16 bit r/w Ext. PHY Specific Ctrl 2 *****/ /***** PHY_MARV_EXT_CTRL_2 16 bit r/w Ext. PHY Specific Ctrl 2 *****/