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 [ 2.234374] omap_i2c omap_i2c.1: timeout waiting for bus ready [ 2.234436] omap_i2c omap_i2c.1: SA 0049 CON 9602 CNT 0004 [ 2.234466] twl: Write failed (mod 2, reg 0x12 count 1) [ 3.249999] omap_i2c omap_i2c.1: timeout waiting for bus ready [ 3.250030] omap_i2c omap_i2c.1: SA 0049 CON 9602 CNT 0004 [ 3.250061] twl: Write failed (mod 2, reg 0x12 count 1) > 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 A. -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
