Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1278656
| From | Michael Trimarchi <michael@amarulasolutions.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry |
| Date | 2015-11-27 10:00 +0100 |
| Message-ID | <qzn2P-yf-35@gated-at.bofh.it> (permalink) |
| References | (5 earlier) <qyWlY-7X9-5@gated-at.bofh.it> <qz0IV-35e-1@gated-at.bofh.it> <qzbEn-1Ge-47@gated-at.bofh.it> <qzmJt-pZ-33@gated-at.bofh.it> <qzmTa-uQ-45@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
Hi On Fri, Nov 27, 2015 at 9:44 AM, Michael Trimarchi <michael@amarulasolutions.com> wrote: > Hi > > On Fri, Nov 27, 2015 at 9:38 AM, Pali Rohár <pali.rohar@gmail.com> wrote: >> On Thursday 26 November 2015 12:39:30 Tony Lindgren wrote: >>> Just to explore options.. How about make a minimal device driver that >>> just loads the atags blob from /lib/firmware and then shows it in >>> /proc/atags? Of course some checking on the atags should be done by >>> the driver.. >> >> And who can dynamically create that blob file in /lib/firmware? If >> kernel does not export those atags (somehow) from bootloader, then >> userspace is not able to create that blob... cyclic problem. >> > > Are those atags from bootloader fix or they change device by device. If they > are fixed they can be included in some firmware and get from the disk. > Sorry, miss the second part of email ;) Michael > Michael > >> So no, problem is that bootloader provides via custom atags dynamic >> information like: boot reason (how was device started, by rtc alarm? by >> reboot? by usb charger? by power button?), boot mode (should be enter >> into firmware update mode?, is this normal boot mode?), ... and those >> information are needed for some proprietary software (e.g. firmware >> upgrade/flash) but also by any other open source applications (based on >> usb charger we enter different runlevel -- for just only charging >> device). >> >> -- >> Pali Rohár >> pali.rohar@gmail.com >> -- >> To unsubscribe from this list: send the line "unsubscribe linux-omap" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html -- | Michael Nazzareno Trimarchi Amarula Solutions BV | | COO - Founder Cruquiuskade 47 | | +31(0)851119172 Amsterdam 1018 AM NL | | [`as] http://www.amarulasolutions.com | -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Back to linux.kernel | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Pavel Machek <pavel@ucw.cz> - 2015-11-22 08:00 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Pali Rohár <pali.rohar@gmail.com> - 2015-11-23 15:50 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Tony Lindgren <tony@atomide.com> - 2015-11-25 19:20 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Arnd Bergmann <arnd@arndb.de> - 2015-11-25 20:50 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Tony Lindgren <tony@atomide.com> - 2015-11-25 22:10 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Arnd Bergmann <arnd@arndb.de> - 2015-11-25 22:40 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Pali Rohár <pali.rohar@gmail.com> - 2015-11-25 22:50 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Arnd Bergmann <arnd@arndb.de> - 2015-11-25 23:00 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Pali Rohár <pali.rohar@gmail.com> - 2015-11-25 23:10 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Frank Rowand <frowand.list@gmail.com> - 2015-11-26 05:30 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Pali Rohár <pali.rohar@gmail.com> - 2015-11-26 10:10 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Tony Lindgren <tony@atomide.com> - 2015-11-26 21:50 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Ivaylo Dimitrov <ivo.g.dimitrov.75@gmail.com> - 2015-11-26 22:20 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Pali Rohár <pali.rohar@gmail.com> - 2015-11-27 09:40 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Michael Trimarchi <michael@amarulasolutions.com> - 2015-11-27 09:50 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Michael Trimarchi <michael@amarulasolutions.com> - 2015-11-27 10:00 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Tony Lindgren <tony@atomide.com> - 2015-11-27 16:00 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-11-27 14:30 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-11-27 21:00 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Arnd Bergmann <arnd@arndb.de> - 2015-11-27 22:10 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Nicolas Pitre <nicolas.pitre@linaro.org> - 2015-11-28 00:30 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Arnd Bergmann <arnd@arndb.de> - 2015-11-28 13:30 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-11-28 14:00 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-11-28 13:40 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Nicolas Pitre <nicolas.pitre@linaro.org> - 2015-11-28 18:40 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Frank Rowand <frowand.list@gmail.com> - 2015-11-28 22:10 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-11-29 19:20 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Pali Rohár <pali.rohar@gmail.com> - 2015-11-29 19:20 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-11-30 00:20 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Pali Rohár <pali.rohar@gmail.com> - 2015-11-30 01:20 +0100
Re: [PATCH 5/5] arm: boot: store ATAGs structure into DT "/chosen/linux,atags" entry Nicolas Pitre <nicolas.pitre@linaro.org> - 2015-11-30 01:20 +0100
csiph-web