[PATCHv2 14/19] ARM: OMAP4: wakeupgen: enable clocks for save_secure_all

Shilimkar, Santosh santosh.shilimkar at ti.com
Mon May 21 05:39:38 EDT 2012

On Mon, May 21, 2012 at 3:05 PM, Tero Kristo <t-kristo at ti.com> wrote:
> On Wed, 2012-05-16 at 18:17 -0600, Paul Walmsley wrote:
>> Hi Tero
>> On Mon, 14 May 2012, Tero Kristo wrote:
>> > save_secure_all needs l3_main_3_ick and l4_secure_clkdm enabled,
>> > otherwise the secure ROM code will crash.
>> Do we know why the l3_main_3 interconnect has to be enabled?  Is this
>> needed to access some L3 or instrumentation registers?
> Not sure, ROM code is doing something here which requires it, and the
> ROM code definitely crashes without this. Your guess sounds plausible.
ROM code accesses L3 firewall registers mostly apart from L2 INSTR firewall
registers here and without that clock, those accesses will abort.


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