Hi, On Mon, Jan 14, 2013 at 10:46:54PM +0200, Aaro Koskinen wrote: > On Mon, Jan 14, 2013 at 09:14:59PM +0200, Felipe Balbi wrote: > > On Mon, Jan 14, 2013 at 08:40:18PM +0200, Aaro Koskinen wrote: > > > On Mon, Jan 14, 2013 at 05:59:12PM +0000, Paul Walmsley wrote: > > > > Here are some basic OMAP test results for Linux v3.8-rc3. > > > > Logs and other details at: > > > > > > > > http://www.pwsan.com/omap/testlogs/test_v3.8-rc3/20130109222058/ > > > > > > > > > > > > Test summary > > > > ------------ > > > > > > > > Boot to userspace: > > > > Pass ( 9/11): 2420n800, 2430sdp, 3517evm, 3530es3beagle, > > > > 3730beaglexm, 37xxevm, 4430es2panda, 5912osk, > > > > 4460pandaes > > > > FAIL ( 2/11): am335xbone, cmt3517 > > > > > > N900 boot is unstable again, I2C issues are back. > > > > damn! > > > > > Boot succeeds and fails randomly. Let's see if this can be bisected. > > > The same kernel works on N950. > > > > fair enough, it might be something related to some errata fix which > > might have been missed. Can you apply this small patch just so I know if > > there is something pending in CNT reg ? > > [ 0.207946] twl 1-0048: PIH (irq 23) chaining IRQs 338..346 > [ 0.208129] twl 1-0048: power (irq 343) chaining IRQs 346..353 > [ 0.209350] twl4030_gpio twl4030_gpio: gpio (irq 338) chaining IRQs 354..371 > [ 1.218749] omap_i2c omap_i2c.1: timeout waiting for bus ready > [ 1.218811] omap_i2c omap_i2c.1: SA 0049 CON 9602 CNT 0004 here's the issue, there is unloaded data in the FIFO. Can you enable full I2C debugging logs ? > > you might also want to try merging my latest i2c patches, which missed > > the merge window, as they might help with this issue too. > > > > The following changes since commit 9931faca02c604c22335f5a935a501bb2ace6e20: > > > > Linux 3.8-rc3 (2013-01-09 18:59:55 -0800) > > > > are available in the git repository at: > > > > git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git i2c-deferred-STP > > I could not reproduce the issue with these. Tested around 20 boots. > There's a noticeable delay (over 4 secs!) around where I2C is initialized > and used for the first time, but no errors and the boot completes: > > [ 0.187530] SCSI subsystem initialized > [ 0.188110] usbcore: registered new interface driver usbfs > [ 0.188415] usbcore: registered new interface driver hub > [ 0.188781] usbcore: registered new device driver usb > [ 0.189453] musb-omap2430 musb-omap2430: invalid resource > [ 4.296905] twl 1-0048: PIH (irq 23) chaining IRQs 338..346 > [ 4.297088] twl 1-0048: power (irq 343) chaining IRQs 346..353 > [ 4.329010] twl4030_gpio twl4030_gpio: gpio (irq 338) chaining IRQs 354..371 > [ 4.470123] VUSB1V5: 1500 mV normal standby > [ 4.470916] VUSB1V8: 1800 mV normal standby cool, at least it works, but looks like there is something still weird going on. Can you enable full logs so I see what's happening ? cheers -- balbi
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