/** ============================================================================
* @n@b Init_Switch
*
* @b Description
* @n This API sets up the ethernet switch subsystem and its Address Lookup
* Engine (ALE) in "Switch" mode.
*
* @param[in]
* @n mtu Maximum Frame length to configure on the switch.
*
* @return
* @n None
* =============================================================================
*/
Void Init_Switch (UInt32 mtu)
{
CSL_CPSW_3GF_PORTSTAT portStatCfg;
/* Enable the CPPI port, i.e., port 0 that does all
* the data streaming in/out of EMAC.
*/
CSL_CPSW_3GF_enablePort0 ();
CSL_CPSW_3GF_disableVlanAware ();
CSL_CPSW_3GF_setPort0VlanReg (0, 0, 0);
CSL_CPSW_3GF_setPort0RxMaxLen (mtu);
/* Enable statistics on both the port groups:
*
* MAC Sliver ports - Port 1, Port 2
* CPPI Port - Port 0
*/
portStatCfg.p0AStatEnable = 1;
portStatCfg.p0BStatEnable = 1;
portStatCfg.p1StatEnable = 1;
portStatCfg.p2StatEnable = 1;
CSL_CPSW_3GF_setPortStatsEnableReg (&portStatCfg);
/* Setup the Address Lookup Engine (ALE) Configuration:
* (1) Enable ALE.
* (2) Clear stale ALE entries.
* (3) Disable VLAN Aware lookups in ALE since
* we are not using VLANs by default.
* (4) No Flow control
* (5) Configure the Unknown VLAN processing
* properties for the switch, i.e., which
* ports to send the packets to.
*/
CSL_CPSW_3GF_enableAle ();
CSL_CPSW_3GF_clearAleTable ();
CSL_CPSW_3GF_disableAleVlanAware ();
CSL_CPSW_3GF_disableAleTxRateLimit ();
CSL_CPSW_3GF_setAlePrescaleReg (125000000u/1000u);
CSL_CPSW_3GF_setAleUnkownVlanReg (7, 3, 3, 7);
if(cpswLpbkMode != CPSW_LOOPBACK_NONE)
CSL_CPSW_3GF_enableAleBypass();
/* Done with switch configuration */
return;
}
/** ============================================================================
* @n@b Init_Switch
*
* @b Description
* @n This API sets up the ethernet switch subsystem and its Address Lookup
* Engine (ALE) in "Switch" mode.
*
* @param[in]
* @n mtu Maximum Frame length to configure on the switch.
*
* @return
* @n None
* =============================================================================
*/
void Init_Switch (uint32_t mtu)
{
CSL_CPSW_3GF_PORTSTAT portStatCfg;
uint32_t rx_max_len = mtu + 14 + 4; /* 4 bytes of FCS */
CSL_CPSW_3GF_ALE_PORTCONTROL alePortControlCfg;
/* Enable the CPPI port, i.e., port 0 that does all
* the data streaming in/out of EMAC.
*/
CSL_CPSW_3GF_enablePort0 ();
CSL_CPSW_3GF_disableVlanAware ();
CSL_CPSW_3GF_setPort0VlanReg (0, 0, 0);
CSL_CPSW_3GF_setPort0RxMaxLen (rx_max_len);
/* Enable statistics on both the port groups:
*
* MAC Sliver ports - Port 1, Port 2
* CPPI Port - Port 0
*/
portStatCfg.p0AStatEnable = 1;
portStatCfg.p0BStatEnable = 1;
portStatCfg.p1StatEnable = 1;
portStatCfg.p2StatEnable = 1;
CSL_CPSW_3GF_setPortStatsEnableReg (&portStatCfg);
/* Setup the Address Lookup Engine (ALE) Configuration:
* (1) Enable ALE.
* (2) Clear stale ALE entries.
* (3) Disable VLAN Aware lookups in ALE since
* we are not using VLANs by default.
* (4) No Flow control
* (5) Configure the Unknown VLAN processing
* properties for the switch, i.e., which
* ports to send the packets to.
*/
CSL_CPSW_3GF_enableAle ();
CSL_CPSW_3GF_clearAleTable ();
CSL_CPSW_3GF_disableAleVlanAware ();
CSL_CPSW_3GF_disableAleTxRateLimit ();
/* Setting the Switch MTU Size to more than needed */
CSL_CPGMAC_SL_setRxMaxLen(0, rx_max_len);
CSL_CPGMAC_SL_setRxMaxLen(1, rx_max_len);
/* Configure the address in "Learning"/"Forward" state */
alePortControlCfg.portState = ALE_PORTSTATE_FORWARD;
alePortControlCfg.dropUntaggedEnable = 0;
alePortControlCfg.vidIngressCheckEnable = 0;
alePortControlCfg.noLearnModeEnable = 0;
alePortControlCfg.mcastLimit = 0;
alePortControlCfg.bcastLimit = 0;
CSL_CPSW_3GF_setAlePortControlReg (0, &alePortControlCfg);
CSL_CPSW_3GF_setAlePortControlReg (1, &alePortControlCfg);
CSL_CPSW_3GF_setAlePortControlReg (2, &alePortControlCfg);
#ifdef SIMULATOR_SUPPORT
CSL_CPSW_3GF_enableAleBypass();
#endif
/* Done with switch configuration */
return;
}
