[Qemu-ppc] Ethernet Controller Register Initialize of PPC405GP missing

[Sijia Li]

Hi:

Recently I'm developing software for PPC405 and trying to use the 
Ethernet controller which is built in PPC405gp. But with the help of 
QEMU monitor command, I found the built-in Ethernet controller hasn't 
been initialized. I checked the source code which emulates ppc405gp.

From line 2542 to line 2544 in "ppc405_uc.c", the source code is as 
following:

    ppc405_mal_init(env, mal_irqs);
    /* Ethernet */
    /* Uses pic[9], pic[15], pic[17] */
    /* CPU control */
    ppc405ep_cpc_init(env, clk_setup, sysclk);

And there is also no eth_init function that had been implemented. I'm 
pretty sure there should be a Ethernet Controller Registers in PPC405GP 
and the system memory address map of it should start from 0xef600800 to 
0xef6008ff  which has been specified in IBM PowerPC 405GP data sheet.

Has anyone implemented this initialization in some customized qemu version?

Regards
Sijia Li