Re: 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

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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@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

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