Leon4+ethernet?

[Diego Benavides]

I'm new to rtems and the leon in general. I've managed to build the samples
provided by Gaisler and load (some) on my dev board:
https://www.gaisler.com/anonftp/rcc/rcc-1.2/1.2.25/

The board is the GR-CPCI-GR740. However I'm trying to understand the
network interface and can't seem to get it going. When I run the samples
rtems-ttcp and rtems-ttcpw (for read/write respectively) the board
configuration seems to fail.

Checking the uart debug output shows the following:
Activating Leon3 io port for smsc_lan91cxx (pio:FF902000 mctrl:FF903000)
Failed to initialize grpci2 driver -2
Initializing network
Can't bring smc1 up: No such device or address
greth1: mii read[1] failed to 2.0 (0x9e004000,0x00001004)
greth1: mii read[2] failed to 2.0 (0x9e004000,0x00001004)
greth1: mii read[3] failed to 2.0 (0x9e004000,0x00001004)


In rtems-ttcp.c I have tried swapping the #define statements:
#define ENABLE_NETWORK
#define ENABLE_NETWORK_SMC_LEON2
/* Define this is a SMC91C111 CHIP is available on the I/O bus */
/*#define ENABLE_NETWORK_SMC_LEON3*/

However I'm not entirely clear on the configuration. Would anyone have
insight into this?

Cheers,
Diego
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