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r8169: phy power ops
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Bits from :
- version 8.019.00 of Realtek's 8168 driver
- version 1.019.00 of Realtek's 8101 driver

Plain old 8169 (PCI) devices do not seem to need anything akin to it.

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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françois romieu authored and David S. Miller committed Jan 4, 2011
1 parent c0e45c1 commit 065c27c
Showing 1 changed file with 166 additions and 1 deletion.
167 changes: 166 additions & 1 deletion drivers/net/r8169.c
View file
Original file line number Diff line number Diff line change
Expand Up @@ -258,7 +258,7 @@ enum rtl8168_8101_registers {
#define CSIAR_BYTE_ENABLE 0x0f
#define CSIAR_BYTE_ENABLE_SHIFT 12
#define CSIAR_ADDR_MASK 0x0fff

PMCH = 0x6f,
EPHYAR = 0x80,
#define EPHYAR_FLAG 0x80000000
#define EPHYAR_WRITE_CMD 0x80000000
Expand Down Expand Up @@ -520,6 +520,11 @@ struct rtl8169_private {
int (*read)(void __iomem *, int);
} mdio_ops;

struct pll_power_ops {
void (*down)(struct rtl8169_private *);
void (*up)(struct rtl8169_private *);
} pll_power_ops;

int (*set_speed)(struct net_device *, u8 autoneg, u16 speed, u8 duplex);
int (*get_settings)(struct net_device *, struct ethtool_cmd *);
void (*phy_reset_enable)(struct rtl8169_private *tp);
Expand Down Expand Up @@ -2551,6 +2556,152 @@ static void __devinit rtl_init_mdio_ops(struct rtl8169_private *tp)
}
}

static void r810x_phy_power_down(struct rtl8169_private *tp)
{
rtl_writephy(tp, 0x1f, 0x0000);
rtl_writephy(tp, MII_BMCR, BMCR_PDOWN);
}

static void r810x_phy_power_up(struct rtl8169_private *tp)
{
rtl_writephy(tp, 0x1f, 0x0000);
rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE);
}

static void r810x_pll_power_down(struct rtl8169_private *tp)
{
if (__rtl8169_get_wol(tp) & WAKE_ANY) {
rtl_writephy(tp, 0x1f, 0x0000);
rtl_writephy(tp, MII_BMCR, 0x0000);
return;
}

r810x_phy_power_down(tp);
}

static void r810x_pll_power_up(struct rtl8169_private *tp)
{
r810x_phy_power_up(tp);
}

static void r8168_phy_power_up(struct rtl8169_private *tp)
{
rtl_writephy(tp, 0x1f, 0x0000);
rtl_writephy(tp, 0x0e, 0x0000);
rtl_writephy(tp, MII_BMCR, BMCR_ANENABLE);
}

static void r8168_phy_power_down(struct rtl8169_private *tp)
{
rtl_writephy(tp, 0x1f, 0x0000);
rtl_writephy(tp, 0x0e, 0x0200);
rtl_writephy(tp, MII_BMCR, BMCR_PDOWN);
}

static void r8168_pll_power_down(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;

if (tp->mac_version == RTL_GIGA_MAC_VER_27)
return;

if (((tp->mac_version == RTL_GIGA_MAC_VER_23) ||
(tp->mac_version == RTL_GIGA_MAC_VER_24)) &&
(RTL_R16(CPlusCmd) & ASF)) {
return;
}

if (__rtl8169_get_wol(tp) & WAKE_ANY) {
rtl_writephy(tp, 0x1f, 0x0000);
rtl_writephy(tp, MII_BMCR, 0x0000);

RTL_W32(RxConfig, RTL_R32(RxConfig) |
AcceptBroadcast | AcceptMulticast | AcceptMyPhys);
return;
}

r8168_phy_power_down(tp);

switch (tp->mac_version) {
case RTL_GIGA_MAC_VER_25:
case RTL_GIGA_MAC_VER_26:
RTL_W8(PMCH, RTL_R8(PMCH) & ~0x80);
break;
}
}

static void r8168_pll_power_up(struct rtl8169_private *tp)
{
void __iomem *ioaddr = tp->mmio_addr;

if (tp->mac_version == RTL_GIGA_MAC_VER_27)
return;

switch (tp->mac_version) {
case RTL_GIGA_MAC_VER_25:
case RTL_GIGA_MAC_VER_26:
RTL_W8(PMCH, RTL_R8(PMCH) | 0x80);
break;
}

r8168_phy_power_up(tp);
}

static void rtl_pll_power_op(struct rtl8169_private *tp,
void (*op)(struct rtl8169_private *))
{
if (op)
op(tp);
}

static void rtl_pll_power_down(struct rtl8169_private *tp)
{
rtl_pll_power_op(tp, tp->pll_power_ops.down);
}

static void rtl_pll_power_up(struct rtl8169_private *tp)
{
rtl_pll_power_op(tp, tp->pll_power_ops.up);
}

static void __devinit rtl_init_pll_power_ops(struct rtl8169_private *tp)
{
struct pll_power_ops *ops = &tp->pll_power_ops;

switch (tp->mac_version) {
case RTL_GIGA_MAC_VER_07:
case RTL_GIGA_MAC_VER_08:
case RTL_GIGA_MAC_VER_09:
case RTL_GIGA_MAC_VER_10:
case RTL_GIGA_MAC_VER_16:
ops->down = r810x_pll_power_down;
ops->up = r810x_pll_power_up;
break;

case RTL_GIGA_MAC_VER_11:
case RTL_GIGA_MAC_VER_12:
case RTL_GIGA_MAC_VER_17:
case RTL_GIGA_MAC_VER_18:
case RTL_GIGA_MAC_VER_19:
case RTL_GIGA_MAC_VER_20:
case RTL_GIGA_MAC_VER_21:
case RTL_GIGA_MAC_VER_22:
case RTL_GIGA_MAC_VER_23:
case RTL_GIGA_MAC_VER_24:
case RTL_GIGA_MAC_VER_25:
case RTL_GIGA_MAC_VER_26:
case RTL_GIGA_MAC_VER_27:
ops->down = r8168_pll_power_down;
ops->up = r8168_pll_power_up;
break;

default:
ops->down = NULL;
ops->up = NULL;
break;
}
}

static int __devinit
rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
{
Expand Down Expand Up @@ -2670,6 +2821,7 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
rtl8169_get_mac_version(tp, ioaddr);

rtl_init_mdio_ops(tp);
rtl_init_pll_power_ops(tp);

/* Use appropriate default if unknown */
if (tp->mac_version == RTL_GIGA_MAC_NONE) {
Expand Down Expand Up @@ -2849,6 +3001,8 @@ static int rtl8169_open(struct net_device *dev)

napi_enable(&tp->napi);

rtl_pll_power_up(tp);

rtl_hw_start(dev);

rtl8169_request_timer(dev);
Expand Down Expand Up @@ -4257,6 +4411,8 @@ static void rtl8169_down(struct net_device *dev)
rtl8169_tx_clear(tp);

rtl8169_rx_clear(tp);

rtl_pll_power_down(tp);
}

static int rtl8169_close(struct net_device *dev)
Expand Down Expand Up @@ -4361,9 +4517,13 @@ static struct net_device_stats *rtl8169_get_stats(struct net_device *dev)

static void rtl8169_net_suspend(struct net_device *dev)
{
struct rtl8169_private *tp = netdev_priv(dev);

if (!netif_running(dev))
return;

rtl_pll_power_down(tp);

netif_device_detach(dev);
netif_stop_queue(dev);
}
Expand All @@ -4382,7 +4542,12 @@ static int rtl8169_suspend(struct device *device)

static void __rtl8169_resume(struct net_device *dev)
{
struct rtl8169_private *tp = netdev_priv(dev);

netif_device_attach(dev);

rtl_pll_power_up(tp);

rtl8169_schedule_work(dev, rtl8169_reset_task);
}

Expand Down

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