Thread (1 message) 1 message, 1 author, 2010-12-20
STALE5706d

[PATCH v4 2/7] OMAP3: PM: Erratum i581 support: dll kick strategy

From: nm@ti.com (Nishanth Menon)
Date: 2010-12-20 14:21:19
Also in: linux-omap

Peter 'p2' De Schrijver had written, on 12/20/2010 05:33 AM, the following:
[..]
quoted
quoted
+       /* these 2 words need to be at the end !!! */
+kick_counter:
+       .word   0
+wait_dll_lock_counter:
+       .word   0
Why do they need to be at the end? Also, at the end of what do they need to be?
At the end of omap34xx_cpu_suspend. As we don't know where in SRAM the
counters will be, the code accessing those counters addresses them
relative from (_omap_sram_idle + omap34xx_cpu_suspend_sz). Not sure if
this part of the code made it to linux-omap though.
I have not posted the change needed to expose these counters to 
userspace waiting for the churn in sleep34xx.S to settle down.

-- 
Regards,
Nishanth Menon
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