Re: [PATCH v4 0/3] ARM: l2c: add l2c support for RZ/A1

[Russell King - ARM Linux <linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org>]

On Thu, Feb 16, 2017 at 11:17:39AM -0500, Chris Brandt wrote:
> The PL310 in the Renesas RZ/A1 SoC (R7S72100) does not have the sideband
> signals connected between the CPU and L2C. According the PL310 TRM,
> sideband signals are optional.
> 
> If a PL310 is added to a system, but the sideband signals are not
> connected, some Cortex A9 optimizations cannot be used. In particular,
> enabling Full Line Zeros in the CA9 without sidebands connected will
> crash the system since the CA9 will expect the L2C to perform operations,
> yet the L2C never gets the commands.
> 
> This series adds the option to not enable anything in the PL310 that
> uses sidebands, and then adds L2C support to the RZ/A1 DT.
> 
> v4:
> * changed l2x0_bresp_dis to l2x0_bresp_disable
> * changed l2x0_flz_dis to l2x0_flz_disable

Looks good, thanks.

I'll want to merge patch 1, but I suspect the other two patches need
to go through arm-soc, which will cause a problem due to being merged
independently...  Arnd?

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