void PhyReset(void)
{
static int init_done=0;
unsigned Status;
if (init_done)
return;
init_done=1;
debug2_printf("Phy addr %d\n",RTL8201_ADDR);
// first software reset the RTL8201
MiiStationWrite(RTL8201_CNTL_REG, RTL8201_ADDR, RTL8201_CNTL_RESET);
MiiStationWrite(RTL8201_CNTL_REG, RTL8201_ADDR, 0);
// initialize auto-negotiation capabilities
MiiStationWrite(RTL8201_ANA_REG,RTL8201_ADDR,
RTL8201_ANA_100TX_FULL+
RTL8201_ANA_100TX+
RTL8201_ANA_10T_FULL+
RTL8201_ANA_10T+
RTL8201_ANA_SEL_802_3);
// Now start an auto negotiation
debug1_printf("Start auto negotiation\n");
MiiStationWrite(RTL8201_CNTL_REG, RTL8201_ADDR,
RTL8201_CNTL_AN+
RTL8201_CNTL_RSTRT_AN);
}
void PhyReset(void)
{
// first software reset the LX970
MiiStationWrite(LX970_CNTL_REG, LX970_ADDR, LX970_CNTL_RESET);
MiiStationWrite(LX970_CNTL_REG, LX970_ADDR, 0);
// set low level drive for MII lines, enable interrupt output
MiiStationWrite(17, LX970_ADDR, BIT3+BIT1);
// default values for 100M encryption are wrong, so fix them
// and configure LEDC to be activity indicator
MiiStationWrite(19, LX970_ADDR, BIT7);
// initialize auto-negotiation capabilities
MiiStationWrite(LX970_ANA_REG,LX970_ADDR,
LX970_ANA_PAUSE_ENA+
LX970_ANA_100T4+
LX970_ANA_100TX_FULL+
LX970_ANA_100TX+
LX970_ANA_10T_FULL+
LX970_ANA_10T+
LX970_ANA_SEL_802_3);
#if 1
// Now start an auto negotiation
MiiStationWrite(LX970_CNTL_REG, LX970_ADDR,
LX970_CNTL_AN+
LX970_CNTL_RSTRT_AN);
#else
// force to 10M full duplex
MiiStationWrite(LX970_CNTL_REG, LX970_ADDR,
LX970_CNTL_FULL_DUP);
#endif
}
void PhyReset(void)
{
unsigned CtrlRegData;
// First software reset the LX972
MiiStationWrite(LX972_CTRL_REG, LX972_ADDR, LX972_CTRL_RESET);
MiiStationWrite(LX972_CTRL_REG, LX972_ADDR, 0);
// Wait until the LX972 reset cycle has completed
// The Control register will read 0x7FFF until the reset cycle has completed
CtrlRegData = 0x7FFF;
while (CtrlRegData == 0x7FFF)
{
CtrlRegData = MiiStationRead(LX972_CTRL_REG, LX972_ADDR);
}
// Set up the LEDs' modes
MiiStationWrite(LX972_LED_CONFIG_REG, LX972_ADDR,
(CYGPKG_DEVS_ETH_ARM_KS32C5000_PHY_LXT972_LED1 << LX972_LED_CONFIG_LED1SHIFT)
| (CYGPKG_DEVS_ETH_ARM_KS32C5000_PHY_LXT972_LED2 << LX972_LED_CONFIG_LED2SHIFT)
| (CYGPKG_DEVS_ETH_ARM_KS32C5000_PHY_LXT972_LED3 << LX972_LED_CONFIG_LED3SHIFT)
| LX972_LED_CONFIG_STRETCH_100MS
| LX972_LED_CONFIG_ENAB_LED_STRETCH);
// Set MII drive strength
MiiStationWrite(LX972_DIG_CONFIG_REG, LX972_ADDR, 0);
// Enable interrupts
MiiStationWrite(LX972_INT_ENAB_REG, LX972_ADDR,
LX972_INT_ENAB_ANMSK
| LX972_INT_ENAB_SPEEDMSK
| LX972_INT_ENAB_DUPLEXMSK
| LX972_INT_ENAB_LINKMSK
| LX972_INT_ENAB_INTEN);
// Initialize auto-negotiation capabilities
// Next page not enabled
MiiStationWrite(LX972_AN_ADVRT_REG, LX972_ADDR,
LX972_AN_ADVRT_PAUSE_ENA
| LX972_AN_ADVRT_100T4
| LX972_AN_ADVRT_100TX_FULL
| LX972_AN_ADVRT_100TX
| LX972_AN_ADVRT_10T_FULL
| LX972_AN_ADVRT_10T
| LX972_AN_ADVRT_SEL_802_3);
#if 1
// Now start an auto negotiation
MiiStationWrite(LX972_CTRL_REG, LX972_ADDR,
LX972_CTRL_AN
| LX972_CTRL_RSTRT_AN);
#else
// force to 10M full duplex
MiiStationWrite(LX972_CTRL_REG, LX972_ADDR,
LX972_CTRL_FULL_DUP);
#endif
}
