unsigned configure_IEEE_phy_speed(XEmacPs *xemacpsp, unsigned speed)
{
u16 control;
u32 phy_addr = detect_phy(xemacpsp);
XEmacPs_PhyRead(xemacpsp, phy_addr,
IEEE_CONTROL_REG_OFFSET,
&control);
control &= ~IEEE_CTRL_LINKSPEED_1000M;
control &= ~IEEE_CTRL_LINKSPEED_100M;
control &= ~IEEE_CTRL_LINKSPEED_10M;
if (speed == 1000) {
control |= IEEE_CTRL_LINKSPEED_1000M;
}
else if (speed == 100) {
control |= IEEE_CTRL_LINKSPEED_100M;
/* Dont advertise PHY speed of 1000 Mbps */
XEmacPs_PhyWrite(xemacpsp, phy_addr,
IEEE_1000_ADVERTISE_REG_OFFSET,
0);
/* Dont advertise PHY speed of 10 Mbps */
XEmacPs_PhyWrite(xemacpsp, phy_addr,
IEEE_AUTONEGO_ADVERTISE_REG,
ADVERTISE_100);
}
else if (speed == 10) {
control |= IEEE_CTRL_LINKSPEED_10M;
/* Dont advertise PHY speed of 1000 Mbps */
XEmacPs_PhyWrite(xemacpsp, phy_addr,
IEEE_1000_ADVERTISE_REG_OFFSET,
0);
/* Dont advertise PHY speed of 100 Mbps */
XEmacPs_PhyWrite(xemacpsp, phy_addr,
IEEE_AUTONEGO_ADVERTISE_REG,
ADVERTISE_10);
}
XEmacPs_PhyWrite(xemacpsp, phy_addr,
IEEE_CONTROL_REG_OFFSET,
control | IEEE_CTRL_RESET_MASK);
{
volatile int wait;
for (wait=0; wait < 100000; wait++);
/*for (wait=0; wait < 100000; wait++);*/
}
return 0;
}
void init_emacps(xemacpsif_s *xemacps, struct netif *netif)
{
UINTPTR mac_address = (UINTPTR)(netif->state);
XEmacPs *xemacpsp;
XEmacPs_Config *mac_config;
s32_t status = XST_SUCCESS;
u32_t i;
u32_t phyfoundforemac0 = FALSE;
u32_t phyfoundforemac1 = FALSE;
/* obtain config of this emac */
mac_config = (XEmacPs_Config *)xemacps_lookup_config(mac_address);
xemacpsp = &xemacps->emacps;
/* set mac address */
status = XEmacPs_SetMacAddress(xemacpsp, (void*)(netif->hwaddr), 1);
if (status != XST_SUCCESS) {
xil_printf("In %s:Emac Mac Address set failed...\r\n",__func__);
}
XEmacPs_SetMdioDivisor(xemacpsp, MDC_DIV_224);
/* Please refer to file header comments for the file xemacpsif_physpeed.c
* to know more about the PHY programming sequence.
* For PCS PMA core, phy_setup is called with the predefined PHY address
* exposed through xaparemeters.h
* For RGMII case, assuming multiple PHYs can be present on the MDIO bus,
* detect_phy is called to get the addresses of the PHY present on
* a particular MDIO bus (emac0 or emac1). This address map is populated
* in phymapemac0 or phymapemac1.
* phy_setup is then called for each PHY present on the MDIO bus.
*/
#ifdef PCM_PMA_CORE_PRESENT
#ifdef XPAR_GIGE_PCS_PMA_1000BASEX_CORE_PRESENT
link_speed = phy_setup(xemacpsp, XPAR_PCSPMA_1000BASEX_PHYADDR);
#elif XPAR_GIGE_PCS_PMA_SGMII_CORE_PRESENT
link_speed = phy_setup(xemacpsp, XPAR_PCSPMA_SGMII_PHYADDR);
#endif
#else
detect_phy(xemacpsp);
for (i = 31; i > 0; i--) {
if (xemacpsp->Config.BaseAddress == XPAR_XEMACPS_0_BASEADDR) {
if (phymapemac0[i] == TRUE) {
link_speed = phy_setup(xemacpsp, i);
phyfoundforemac0 = TRUE;
}
} else {
if (phymapemac1[i] == TRUE) {
link_speed = phy_setup(xemacpsp, i);
phyfoundforemac1 = TRUE;
}
}
}
/* If no PHY was detected, use broadcast PHY address of 0 */
if (xemacpsp->Config.BaseAddress == XPAR_XEMACPS_0_BASEADDR) {
if (phyfoundforemac0 == FALSE)
link_speed = phy_setup(xemacpsp, 0);
} else {
if (phyfoundforemac1 == FALSE)
link_speed = phy_setup(xemacpsp, 0);
}
#endif
XEmacPs_SetOperatingSpeed(xemacpsp, link_speed);
/* Setting the operating speed of the MAC needs a delay. */
{
volatile s32_t wait;
for (wait=0; wait < 20000; wait++);
}
}
unsigned
get_IEEE_phy_speed(XEmacPs *xemacpsp)
{
u16 control;
u16 status;
u16 partner_capabilities;
u16 partner_capabilities_1000;
u16 phylinkspeed;
u32 phy_addr = detect_phy(xemacpsp);
XEmacPs_PhyWrite(xemacpsp, phy_addr,
IEEE_1000_ADVERTISE_REG_OFFSET,
ADVERTISE_1000);
/* Advertise PHY speed of 100 and 10 Mbps */
XEmacPs_PhyWrite(xemacpsp, phy_addr,
IEEE_AUTONEGO_ADVERTISE_REG,
ADVERTISE_100_AND_10);
XEmacPs_PhyRead(xemacpsp, phy_addr,
IEEE_CONTROL_REG_OFFSET,
&control);
control |= (IEEE_CTRL_AUTONEGOTIATE_ENABLE |
IEEE_STAT_AUTONEGOTIATE_RESTART);
XEmacPs_PhyWrite(xemacpsp, phy_addr,
IEEE_CONTROL_REG_OFFSET,
control);
/* Read PHY control and status registers is successful. */
XEmacPs_PhyRead(xemacpsp, phy_addr,
IEEE_CONTROL_REG_OFFSET,
&control);
XEmacPs_PhyRead(xemacpsp, phy_addr,
IEEE_STATUS_REG_OFFSET,
&status);
if ((control & IEEE_CTRL_AUTONEGOTIATE_ENABLE) && (status &
IEEE_STAT_AUTONEGOTIATE_CAPABLE)) {
while ( !(status & IEEE_STAT_AUTONEGOTIATE_COMPLETE) ) {
XEmacPs_PhyRead(xemacpsp, phy_addr,
IEEE_STATUS_REG_OFFSET,
&status);
}
XEmacPs_PhyRead(xemacpsp, phy_addr,
IEEE_PARTNER_ABILITIES_1_REG_OFFSET,
&partner_capabilities);
if (status & IEEE_STAT_1GBPS_EXTENSIONS) {
XEmacPs_PhyRead(xemacpsp, phy_addr,
IEEE_PARTNER_ABILITIES_3_REG_OFFSET,
&partner_capabilities_1000);
if (partner_capabilities_1000 &
IEEE_AN3_ABILITY_MASK_1GBPS)
return 1000;
}
if (partner_capabilities & IEEE_AN1_ABILITY_MASK_100MBPS)
return 100;
if (partner_capabilities & IEEE_AN1_ABILITY_MASK_10MBPS)
return 10;
xil_printf("%s: unknown PHY link speed, setting TEMAC speed to be 10 Mbps\r\n",
__FUNCTION__);
return 10;
} else {
/* Update TEMAC speed accordingly */
if (status & IEEE_STAT_1GBPS_EXTENSIONS) {
/* Get commanded link speed */
phylinkspeed = control &
IEEE_CTRL_1GBPS_LINKSPEED_MASK;
switch (phylinkspeed) {
case (IEEE_CTRL_LINKSPEED_1000M):
return 1000;
case (IEEE_CTRL_LINKSPEED_100M):
return 100;
case (IEEE_CTRL_LINKSPEED_10M):
return 10;
default:
xil_printf("%s: unknown PHY link speed (%d), setting TEMAC speed to be 10 Mbps\r\n",
__FUNCTION__, phylinkspeed);
return 10;
}
} else {
return (control & IEEE_CTRL_LINKSPEED_MASK) ? 100 : 10;
}
}
}