Hello Sergei,
On Aug 29, 2016, Sergei Shtylyov wrote:
> SH7757 is not the only platform with TSU, there's e.g. R8A7740 ARM
> SoC which only has 1 GETHER channel...
I don't have the R8A7740 manual (R-Mobile A1) so I can't see. But even if it
does not have the POST registers, it might not hurt anything.
I just looked at the RZ/A1 register space and there seems to be dummy registers
in the POST1-4 area. I can write to them and read back what I wrote...which is
all that the sh_eth driver cares about. I bet when the designers bring in the
EtherC IP block, the entire register address is always populated with a simple
latch registers. And then, if a feature is not included (like relay/POST), then
nothing is hooked up on the back side of it.
So, the 'easiest' solution is to just put the registers into the
sh_eth_offset_fast_rz array and not try to make things more complicated.
[TSU_TEN] = 0x0064,
+ [TSU_POST1] = 0x0070,
+ [TSU_POST2] = 0x0074,
+ [TSU_POST3] = 0x0078,
+ [TSU_POST4] = 0x007c,
Chris
