Re: [PATCH v2 1/3] ARM: l2c: add pl310-no-sideband option

2017-02-15 Thread Rob Herring
On Tue, Feb 07, 2017 at 12:09:27PM -0500, Chris Brandt wrote: > 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

[PATCH v2 1/3] ARM: l2c: add pl310-no-sideband option

2017-02-07 Thread Chris Brandt
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