From mboxrd@z Thu Jan 1 00:00:00 1970 From: pavel@ucw.cz (Pavel Machek) Date: Mon, 30 Oct 2017 21:02:59 +0100 Subject: 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 In-Reply-To: <20171030194340.GA9133@amd> References: <20171025203459.GA22035@amd> <20171025212806.GA21504@atomide.com> <20171026091325.GA26929@amd> <20171026093115.4bc6ctxjx72ng7ld@earth> <20171026095734.GA10141@amd> <20171026120130.dicanunwcdmjntnb@earth> <20171027101905.GA4287@amd> <65ad0b63-cfae-f7ac-f916-32fd0c7c540a@gmail.com> <20171030194340.GA9133@amd> Message-ID: <20171030200259.GA13560@amd> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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: