From db99b98885e717454feef1c6868b27d3f23c2e7c Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Wed, 14 May 2008 17:04:16 -0700 Subject: sky2: put PHY in sleep when down Put PHY int sleep mode (from vendor sk98lin 10.50 driver) when the network device is brought down. Signed-off-by: Stephen Hemminger Signed-off-by: Jeff Garzik --- drivers/net/sky2.c | 40 ++++++++++++++++++++++++++++++++++++++-- 1 file changed, 38 insertions(+), 2 deletions(-) (limited to 'drivers/net/sky2.c') diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c index ad35674ba83..59cb9cd00ad 100644 --- a/drivers/net/sky2.c +++ b/drivers/net/sky2.c @@ -641,11 +641,47 @@ static void sky2_phy_power_up(struct sky2_hw *hw, unsigned port) static void sky2_phy_power_down(struct sky2_hw *hw, unsigned port) { u32 reg1; + u16 ctrl; + + /* release GPHY Control reset */ + sky2_write8(hw, SK_REG(port, GPHY_CTRL), GPC_RST_CLR); + + /* release GMAC reset */ + sky2_write8(hw, SK_REG(port, GMAC_CTRL), GMC_RST_CLR); + + if (hw->flags & SKY2_HW_NEWER_PHY) { + /* select page 2 to access MAC control register */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 2); + + ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); + /* allow GMII Power Down */ + ctrl &= ~PHY_M_MAC_GMIF_PUP; + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); + + /* set page register back to 0 */ + gm_phy_write(hw, port, PHY_MARV_EXT_ADR, 0); + } + + /* setup General Purpose Control Register */ + gma_write16(hw, port, GM_GP_CTRL, + GM_GPCR_FL_PASS | GM_GPCR_SPEED_100 | GM_GPCR_AU_ALL_DIS); + + if (hw->chip_id != CHIP_ID_YUKON_EC) { + if (hw->chip_id == CHIP_ID_YUKON_EC_U) { + ctrl = gm_phy_read(hw, port, PHY_MARV_PHY_CTRL); + + /* enable Power Down */ + ctrl |= PHY_M_PC_POW_D_ENA; + gm_phy_write(hw, port, PHY_MARV_PHY_CTRL, ctrl); + } + + /* set IEEE compatible Power Down Mode (dev. #4.99) */ + gm_phy_write(hw, port, PHY_MARV_CTRL, PHY_CT_PDOWN); + } sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_ON); reg1 = sky2_pci_read32(hw, PCI_DEV_REG1); - reg1 |= phy_power[port]; - + reg1 |= phy_power[port]; /* set PHY to PowerDown/COMA Mode */ sky2_pci_write32(hw, PCI_DEV_REG1, reg1); sky2_write8(hw, B2_TST_CTRL1, TST_CFG_WRITE_OFF); } -- cgit v1.2.3