/** ============================================================================
* @n@b Init_MAC
*
* @b Description
* @n This API initializes the CPGMAC Sliver (MAC Port) port.
*
* @param[in]
* @n macPortNum MAC port number for which the initialization must be done.
*
* @param[in]
* @n macAddress MAC address to configure on this port.
*
* @param[in]
* @n mtu Maximum Frame length to configure on this port.
*
* @return
* @n None
* =============================================================================
*/
int Init_MAC (UInt32 macPortNum, UInt8 macAddress[6], UInt32 mtu)
{
/* Reset MAC Sliver 0 */
CSL_CPGMAC_SL_resetMac (macPortNum);
while (CSL_CPGMAC_SL_isMACResetDone (macPortNum) != TRUE);
/* Setup the MAC Control Register for this port:
* (1) Enable Full duplex
* (2) Enable GMII
* (3) Enable Gigabit
* (4) Enable External Configuration. This enables
* the "Full duplex" and "Gigabit" settings to be
* controlled externally from SGMII
* (5) Don't enable any control/error/short frames
*/
CSL_CPGMAC_SL_enableFullDuplex (macPortNum);
CSL_CPGMAC_SL_enableGMII (macPortNum);
CSL_CPGMAC_SL_enableGigabit (macPortNum);
CSL_CPGMAC_SL_enableExtControl (macPortNum);
/* Configure the MAC address for this port */
CSL_CPSW_3GF_setPortMACAddress (macPortNum, macAddress);
/* Configure VLAN ID/CFI/Priority.
*
* For now, we are not using VLANs so just configure them
* to all zeros.
*/
CSL_CPSW_3GF_setPortVlanReg (macPortNum, 0, 0, 0);
/* Configure the Receive Maximum length on this port,
* i.e., the maximum size the port can receive without
* any errors.
*
* Set the Rx Max length to the MTU configured for the
* interface.
*/
CSL_CPGMAC_SL_setRxMaxLen (macPortNum, mtu);
//platform_write("MAC intialization done for port %d and its mac address is %X:%X:%X:%X:%X:%X\n",macPortNum,macAddress[0],\
macAddress[1],macAddress[2],macAddress[3],macAddress[4],macAddress[5]);
/* Done setting up the MAC port */
return 0;
}
/** ============================================================================
* @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;
}
