Re: [PATCH V2] ARM: Xilinx: Adding Xilinx board support

[Grant Likely <grant.likely@secretlab.ca>]

On Tue, Jun 14, 2011 at 9:23 PM, Barry Song <21cnbao@gmail.com> wrote:
> 2011/5/18  <johnlinn@comcast.net>:
>> +static struct of_device_id zynq_of_bus_ids[] __initdata = {
>> +       { .compatible = "simple-bus", },
>> +       {}
>> +};
>> +
>> +/**
>> + * xilinx_init_machine() - System specific initialization, intended to be
>> + *                        called from board specific initialization.
>> + */
>> +void __init xilinx_init_machine(void)
>> +{
>> +#ifdef CONFIG_CACHE_L2X0
>> +       /*
>> +        * 64KB way size, 8-way associativity, parity disabled
>> +        */
>> +       l2x0_init(PL310_L2CC_BASE, 0x02060000, 0xF0F0FFFF);
>> +#endif
>> +
>> +       of_platform_bus_probe(NULL, zynq_of_bus_ids, NULL);
>> +}
>
> it looks to me a common machine init function is calling a
> chip/board-special device probing. xilinx_init_machine  is calling
> zynq_of_bus_ids. what will happen if we add a new different with zynq?

The bus_ids are actually pretty generic.  I've got a patch in my tree
which I'll be posting soon that creates a generic bus id table that
most platforms can use.

g.