unsigned PhyStatus(void)
{
unsigned Status;
unsigned r = 0, count=0;
debug2_printf("Wait\n");
// Wait for auto negotiation to get completed
do
{
Status = MiiStationRead(RTL8201_STATUS_REG,RTL8201_ADDR);
CYGACC_CALL_IF_DELAY_US(10000);
count++;
}
while (!(Status&RTL8201_STATUS_AN_COMLETE) && count<500);
//If it takes longer then 5 sec stop waiting
debug2_printf("Wait finished\n");
debug1_printf("PhyStatus is ");
Status = MiiStationRead(RTL8201_STATUS_REG,RTL8201_ADDR);
if (Status & RTL8201_STATUS_LINKUP)
{
r |= PhyStatus_LinkUp;
debug1_printf("LINK ");
}
Status = MiiStationRead(RTL8201_CNTL_REG,RTL8201_ADDR);
if (Status & RTL8201_CNTL_FULL_DUP)
{
r |= PhyStatus_FullDuplex;
debug1_printf("FDX ");
}
Status = MiiStationRead(RTL8201_TEST_REG,RTL8201_ADDR);
if (Status & RTL8201_TEST_LINK_100)
{
r |= PhyStatus_100Mb;
debug1_printf("100MBit ");
}
else if (r & PhyStatus_LinkUp)
debug2_printf("10MBit ");
debug1_printf("(0x%x)\n",r);
return r;
}
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
}
unsigned PhyStatus(void)
{
unsigned lxt970Status = MiiStationRead(LX970_CHIPSTAT_REG,LX970_ADDR);
unsigned r = 0;
if (lxt970Status & LX970_CHIPSTAT_LINKUP)
r |= PhyStatus_LinkUp;
if (lxt970Status & LX970_CHIPSTAT_FULLDUP)
r |= PhyStatus_FullDuplex;
if (lxt970Status & LX970_CHIPSTAT_100M)
r |= PhyStatus_100Mb;
return r;
}
void PhyInterruptAck(void)
{
MiiStationRead(1,LX970_ADDR);
MiiStationRead(18,LX970_ADDR);
}
void PhyInterruptAck(void)
{
MiiStationRead(LX972_STATUS1_REG, LX972_ADDR);
MiiStationRead(LX972_INT_STAT_REG, LX972_ADDR);
}
