On Wed, Oct 31, 2012 at 04:17:27PM +0100, Benoit Cousson wrote: > > + compatible = "ti,cpsw"; > > + ti,hwmods = "cpgmac0"; > > + cpdma_channels = <8>; > > + host_port_no = <0>; > > + cpdma_reg_ofs = <0x800>; > > + cpdma_sram_ofs = <0xa00>; > > + ale_reg_ofs = <0xd00>; > > + ale_entries = <1024>; > > + host_port_reg_ofs = <0x108>; > > + hw_stats_reg_ofs = <0x900>; > > + bd_ram_ofs = <0x2000>; > > + bd_ram_size = <0x2000>; > > + no_bd_ram = <0>; > > + rx_descs = <64>; > > + mac_control = <0x20>; > > Do you have to store all these data in the DTS? Cannot it be in the driver? > > Do you expect to have several instance of the same IP with different > parameters here? As I understand it, there are only two different layouts for the CPSW, the one in the dm814x and the one in the am335x. So I think it would work to put only the version register offet in the DT, and the let the driver figure out the rest from there. But if TI is planning on reordering the registers with each new silicon revision, again and again, then it might make sense to keep the offsets in the DT. [ I really wonder why the hardware people think that reshuffling the register layout constitutes an improvement. ] Thanks, Richard -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
