Re: [RFC PATCH 12/17] ARM: kernel: add SCU reset hook

2011-07-08 Thread Lorenzo Pieralisi
On Fri, Jul 08, 2011 at 03:14:02AM +0100, Santosh Shilimkar wrote: > On 7/7/2011 8:50 AM, Lorenzo Pieralisi wrote: > > When a CLUSTER is powered down the SCU must be reinitialized on > > warm-boot. > > This patch adds a hook to reset the SCU, which implies invalidating > > TAG RAMs and renabling it

Re: [RFC PATCH 12/17] ARM: kernel: add SCU reset hook

2011-07-07 Thread Santosh Shilimkar
On 7/7/2011 8:50 AM, Lorenzo Pieralisi wrote: When a CLUSTER is powered down the SCU must be reinitialized on warm-boot. This patch adds a hook to reset the SCU, which implies invalidating TAG RAMs and renabling it. The scu virtual address is saved in a static variable when the SCU is first enab

[RFC PATCH 12/17] ARM: kernel: add SCU reset hook

2011-07-07 Thread Lorenzo Pieralisi
When a CLUSTER is powered down the SCU must be reinitialized on warm-boot. This patch adds a hook to reset the SCU, which implies invalidating TAG RAMs and renabling it. The scu virtual address is saved in a static variable when the SCU is first enabled at boot; this allows common idle code to be