n950: mmc fails to work, omap_hsmmc 480b4000.mmc: RX DMA channel request failed ? was Re: 4.13 (and probably all recent) kernels refuse to boot on one Nokia N950, work or another
From: Pavel Machek <hidden>
Date: 2017-10-30 20:03:03
Also in:
linux-omap, lkml
Hi!
Then I was (finally!) able to run dmesg, and that tells me: [ 0.816040] mousedev: PS/2 mouse device common for all mice [ 0.817657] input: TWL4030 Keypad as /devices/platform/68000000.ocp/48070000.i2c/i2c-0/0-0048/48070000.i2c:twl at 48:keypad/input/input0 [ 0.820800] i2c /dev entries driver [ 0.830261] omap_wdt: OMAP Watchdog Timer Rev 0x31: initial timeout 60 sec [ 0.836212] omap_hsmmc 480b4000.mmc: RX DMA channel request failed [ 0.840026] ledtrig-cpu: registered to indicate activity on CPUs [ 0.840789] omap-aes 480c5000.aes: OMAP AES hw accel rev: 2.6 [ 0.840942] omap-aes 480c5000.aes: Unable to request in DMA channel [ 0.841644] omap-aes 480c5000.aes: will run requests pump with realtime priority Kernel 4.13-rc2.
Aha. DMADEVICES=y, then DMA_OMAP can be selected. Then mmc works. Debugging is much easier with dmesg :-). Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 181 bytes Desc: Digital signature URL: <http://lists.infradead.org/pipermail/linux-arm-kernel/attachments/20171030/aa6636c3/attachment.sig>