Kevin Hilman had written, on 12/16/2010 10:36 AM, the following:
Nishanth Menon <nm@xxxxxx> writes:
Hi Kevin,
Just fyi, I tested pm-core(no patches of mine) against SDP3430(ES3.1)
and Beagle Rev C1(ES3.0) (that is the only board I could dig up): both
fail - I think basically <3630 is broken atm!.
Beagleboard:
with omap2plus_defconfig + MLO, u-boot.bin from
http://www.angstrom-distribution.org/demo/beagleboard/
filesystem is a minimal busybox that I had built and init=/bin/sh to
prevent any other apps running in the background - I use the same on
SDP3630 and 3430 platforms.
branch: pm-core (from your tree).
defconfig: omap2plus_defconfig - no changes other than disable RM680
board - currently causes a build failure.
At least for Beagle (and I assume it's same for SDP, but don't have one
to test with) the problem is that u-boot leaves the USB OTG block in a
state that does not idle, and thus prevents CORE from hitting RET.
The solution: ensure the USB OTG block is reset.
Also in my tree, threre is an usb-otg-reset branch which you can merge
with pm-core to test if this helps.
Until we have the USB OTG hwmod conversion merged, this temporary hack
is needed. After conversion to hwmod, all hwmod will be reset during
boot so we are not affected by bootloader (mis)behavior.
Arrgh.. we have some sort of regression for .37 formal release (off will
probably broken as a result without these patches no for mainline
bootloaders/custom bootloaders that dont understand the dependency
clearly?).
Anyways, with the 5 patches in usb-otg-reset - test results:
SDP3630 (ES1.0):
SUSPEND:OFF test | PASS | OFF: 0->1| RET:0 ->0 (8 sec)
SUSPEND:RET test | PASS | OFF: 1->1| RET:0 ->1 (6 sec)
IDLE:OFF test | PASS | OFF: 1->22| RET:1 ->1 (21 sec)
IDLE:RET test | PASS | OFF: 22->22| RET:1 ->24 (21 sec)
SDP3430 (ES3.1):
SUSPEND:OFF test | PASS | OFF: 0->1| RET:0 ->0 (7 sec)
SUSPEND:RET test | PASS | OFF: 1->1| RET:0 ->1 (6 sec)
IDLE:OFF test | PASS | OFF: 1->21| RET:1 ->1 (22 sec)
IDLE:RET test | PASS | OFF: 21->21| RET:1 ->23 (21 sec)
Beagle C1 (ES3.0):
SUSPEND:OFF test | FAIL | OFF: 0->0| RET:0 ->0 (6 sec)
SUSPEND:RET test | FAIL | OFF: 0->0| RET:0 ->0 (6 sec)
IDLE:OFF test | FAIL | OFF: 0->0| RET:0 ->0 (21 sec)
IDLE:RET test | FAIL | OFF: 0->0| RET:0 ->0 (21 sec)
--
Regards,
Nishanth Menon
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