AM2434: How ICSSG support mac to mac link

Hi Wang,

ICSSG can support mac to mac link. But we do not have demo for the same as of now in 8.4.17. Could you please let me in on little more detail here about your use case, how do you intend to use ICSSG here. Are you trying to use MAC feature or switch feature?

BR

Nilabh A.

In our design，we use ICSSG as MAC mode  and connect to another device.

Hi Wang, 

I will discuss with internal team if what you are asking is possible or not?

Will get back by EOW.

BR

Nilabh A.

Thank you. I will try it in future and feedback the result.

Sure Wang.

modify on icssg lwip example ,i can`t send udp packet on rgmii bus. the issue seem not resolved.

Hi Nilabh,

      how can I  do (such modify somewhere..etc) to make TX_CLK output 125Mhz clk?

Which PHY are you using?

As tiltle said, my application is using icssg mac to mac linked to another device. As Cpsw_openPortLinkNoPhy in cpsw_ioctl.c ,I add code seem like in icssg.c ,but it not work with icssg_lwip sample.

static int32_t Icssg_openEnetNoPhy ( Icssg_Handle hIcssg,
const EnetPer_PortLinkCfg* portLinkCfg )
{
EnetPer_Handle hPer = ( EnetPer_Handle ) hIcssg;

//IcssgMacPort_Cfg* macPortCfg = ( IcssgMacPort_Cfg* ) portLinkCfg->macCfg;
Enet_MacPort macPort = portLinkCfg->macPort;
//EnetMacPort_Interface mii = ( EnetMacPort_Interface ) portLinkCfg->mii;
EnetMacPort_LinkCfg linkCfg = ( EnetMacPort_LinkCfg ) portLinkCfg->linkCfg;
//Enet_IoctlPrms prms;
uint32_t portNum = ENET_MACPORT_NORM ( macPort );
uint32_t portId = ENET_MACPORT_ID ( macPort );
int32_t status = ENET_SOK;
/* Assert if port number is not correct */
Enet_assert ( portNum < EnetSoc_getMacPortMax ( hIcssg->enetPer.enetType, hIcssg->enetPer.instId ),
"Invalid Port Id: %u\r\n", portNum );
ENETTRACE_VAR ( hPer );
ENETTRACE_VAR ( portId );
//ENETTRACE_VAR ( macPort );
hIcssg->hPhy[portNum] = NULL;

/* Explicit speed and duplexity must be provided, can't be discovered */
if ( ( linkCfg.speed == ENET_SPEED_AUTO ) ||
( linkCfg.duplexity == ENET_DUPLEX_AUTO ) )
{
ENETTRACE_ERR ( "Port %u: Auto-speed/duplexity is not valid for PHY-less links\r\n", portId );
status = ENET_EINVALIDPARAMS;
}

ENETTRACE_INFO ( "%s: Port %u: open port link \r\n", ENET_PER_NAME ( hIcssg ), portId );
/*if ( hIcssg->disablePhyDriver != true )
{
hIcssg->disablePhyDriver = true;//no phy
}*/

/*IcssgMacPort_SetPortStateInArgs setPortStateInArgs;
setPortStateInArgs.macPort = macPort;
setPortStateInArgs.portState = ICSSG_PORT_STATE_FORWARD;

status = Icssg_ioctlSetPortState ( hIcssg, &setPortStateInArgs );
ENETTRACE_ERR_IF ( ( status != ENET_SINPROGRESS ),
"%s: port %u: failed to set port state: %d\r\n",
ENET_PER_NAME ( hIcssg ), ENET_MACPORT_ID ( macPort ), status );
*/
return status;
}

HI Wang,

I have started looking into this issue. Let me update you once I have an update.