Dear Mischa,

In message E6BF041E97966E4DB955F0DF883AD2D685F40060@de02wembxa.internal.synopsys.com you wrote:

...

...

+void icache_enable(void) +{

• write_aux_reg(ARC_REG_IC_CTRL, read_aux_reg(ARC_REG_IC_CTRL) &

•       ~IC_CTRL_CACHE_DISABLE);
  

+}

I missed this in patch # 1 - why do you need these read_aux_reg() / write_aux_reg() macros? Why cannot you use standard I/O accessors instead?

Auxiliary registers are not I/O registers. The ARC architecture has general purpose registers (like any processor core has), and another set of registers, the auxiliary registers. These require a specific assembly instruction to be accessed.

Thanks for the explanation. And sorry for my ignorance - I don't know ARC at all...

Best regards,

Wolfgang Denk