[PATCH 08/15] ARM: OMAP2+: hwmod: Fix the omap_hwmod_addr_space for CPGMAC0

Bedia, Vaibhav vaibhav.bedia at ti.com
Tue Nov 6 05:09:14 EST 2012


On Tue, Nov 06, 2012 at 14:59:45, Hiremath, Vaibhav wrote:
[...]
> > 
> > Ok I checked this one. The change I made was indirectly fixing another
> > issue with the AM33xx hwmod data. am33xx_cpgmac0_addr_space[] has two
> > entries and the SYSC register is part of the second entry. The function
> > _find_mpu_rt_addr_space in omap_hwmod.c looks for the first entry with
> > the flag ADDR_TYPE_RT flag. The change I made indirectly made the second
> > entry in am33xx_cpgmac0_addr_space[] become the first memory space with
> > the ADDR_TYPE_RT flag. Due to this the hwmod code wrote to the correct
> > SYSC address of CPGMAC0 and the IP went to standby during bootup. 
> > After changing the order of the entries in am33xx_cpgmac0_addr_space[]
> > things work fine.
> > 
> 
> Good catch.
> 
> Just a side note on this, driver expects the addresses in this order
> only, first SS and then WR.
> 

Sorry I didn't understand your comment. For HWMOD code to work as expected,
we need to change the order. Are you saying that I should not be doing this
because the driver will get affected?

Regards,
Vaibhav



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