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Software for White Rabbit PTP Core
Commit 99a27709 authored by Tomasz Wlostowski's avatar Tomasz Wlostowski
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dev/endpoint: make PHY reset function public

parent a88ce3d3
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Showing with 23 additions and 15 deletions
dev/endpoint.c
View file @ 99a27709
......@@ -111,6 +111,27 @@ void ep_init()
EP->DMCR = EP_DMCR_EN | EP_DMCR_N_AVG_W(DMTD_AVG_SAMPLES);
}
void ep_reset_phy(void)
{
uint32_t mcr;
/* Reset the GTP Transceiver - it's important to do the GTP phase alignment every time
we start up the software, otherwise the calibration RX/TX deltas may not be correct */
ep_pcs_write(MDIO_REG_MCR, MDIO_MCR_PDOWN); /* reset the PHY */
if (!IS_WR_NODE_SIM)
timer_delay_ms(200);
ep_pcs_write(MDIO_REG_MCR, MDIO_MCR_RESET); /* reset the PHY */
ep_pcs_write(MDIO_REG_MCR, 0); /* reset the PHY */
/* Don't advertise anything - we don't want flow control */
ep_pcs_write(MDIO_REG_ADVERTISE, 0);
mcr = MDIO_MCR_SPEED1000_MASK | MDIO_MCR_FULLDPLX_MASK;
if (autoneg_enabled)
mcr |= MDIO_MCR_ANENABLE | MDIO_MCR_ANRESTART;
ep_pcs_write(MDIO_REG_MCR, mcr);
}
/* Enables/disables transmission and reception. When autoneg is set to 1,
starts up 802.3 autonegotiation process */
int ep_enable(int enabled, int autoneg)
......@@ -136,22 +157,8 @@ int ep_enable(int enabled, int autoneg)
autoneg_enabled = autoneg;
/* Reset the GTP Transceiver - it's important to do the GTP phase alignment every time
we start up the software, otherwise the calibration RX/TX deltas may not be correct */
ep_pcs_write(MDIO_REG_MCR, MDIO_MCR_PDOWN); /* reset the PHY */
if (!IS_WR_NODE_SIM)
timer_delay_ms(200);
ep_pcs_write(MDIO_REG_MCR, MDIO_MCR_RESET); /* reset the PHY */
ep_pcs_write(MDIO_REG_MCR, 0); /* reset the PHY */
/* Don't advertise anything - we don't want flow control */
ep_pcs_write(MDIO_REG_ADVERTISE, 0);
mcr = MDIO_MCR_SPEED1000_MASK | MDIO_MCR_FULLDPLX_MASK;
if (autoneg)
mcr |= MDIO_MCR_ANENABLE | MDIO_MCR_ANRESTART;
ep_reset_phy();
ep_pcs_write(MDIO_REG_MCR, mcr);
return 0;
}
......
include/dev/endpoint.h
View file @ 99a27709
......@@ -35,6 +35,7 @@ int ep_sfp_enable(int ena);
uint16_t ep_pcs_read(int location);
void ep_pcs_write(int location, int value);
void ep_reset_phy(void);
void pfilter_init_default(void);
......
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