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* restart: replace reset_cpu with registered restart handlersSascha Hauer2015-08-272-32/+0
| | | | | | | | | | | | | | | | | | | | | | This replaces the reset_cpu() function which every SoC or board must provide with registered handlers. This makes it possible to have multiple reset functions for boards which have multiple ways to reset the machine. Also boards which have no way at all to reset the machine no longer have to provide a dummy reset_cpu() function. The problem this solves is that some machines have external PMICs or similar to reset the system which have to be preferred over the internal SoC reset, because the PMIC can reset not only the SoC but also the external devices. To pick the right way to reset a machine each handler has a priority. The default priority is 100 and all currently existing restart handlers are registered with this priority. of_get_restart_priority() allows to retrieve the priority from the device tree which makes it possible for boards to give certain restart handlers a higher priority in order to use this one instead of the default one. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* treewide: Reuse init_clock() return value for clocksource driversAlexander Shiyan2014-11-101-2/+1
| | | | | Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Fix misspellings of "persistant" -> "persistent" in various placesRobert P. J. Day2014-06-301-4/+4
| | | | | | | | Fix misspellings of "persistent", including the renaming of a function to "register_persistant_environment". Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* x86: ns16550: Rework driver to allow for x86 I/O spaceMichel Stam2014-04-092-35/+0
| | | | | | | | | | | | The current implementation fakes a memory-mapped I/O device at 0x3f8 and 0x2f8, then uses platform read/write functions to do the actual reading and writing. These platform functions only exist for the x86 platform; better to move the I/O routines into the driver and have the driver request I/O ports using request_ioport_region. Signed-off-by: Michel Stam <michel@reverze.net> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Remove bad Kconfig reference to HAS_PCIAlexander Shiyan2012-12-081-1/+0
| | | | | | | Barebox not contain symbol HAS_PCI, so remove all references to it. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Cleanup Kconfig filesAlexander Shiyan2012-12-081-1/+1
| | | | | | | | | This patch provides a global cleanup barebox Kconfig files. This includes replacing spaces to tabs, formatting in accordance format, removing extraneous lines and spaces. No functional changes. Signed-off-by: Alexander Shiyan <shc_work@mail.ru> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Treewide: remove address of the Free Software FoundationSascha Hauer2012-09-174-16/+0
| | | | | | | The FSF address has changed in the past. Instead of updating it each time the address changes, just drop it completely treewide. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* introduce io.hSascha Hauer2011-09-222-2/+2
| | | | | | | To allow for some generic io accessors introduce io.h and use this instead of asm/io.h throughout the tree. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* x86: Use the generic linker script initializingJuergen Beisert2011-03-101-0/+99
| | | | Signed-off-by: Juergen Beisert <jbe@pengutronix.de>
* clocksource: switch mask to CLOCKSOURCE_MASKJean-Christophe PLAGNIOL-VILLARD2010-11-291-1/+1
| | | | | Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* make reset_cpu a __noreturn functionSascha Hauer2010-03-301-1/+1
| | | | Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Bring in the time reference for the x86 platformsJuergen Beisert2010-01-142-0/+74
| | | | | | | | This code uses the always (hopefully) existing PIT device to get the time reference for barebox. Signed-off-by: Juergen Beisert <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* Bring in the first x86 specific codeJuergen Beisert2010-01-144-0/+103
Add some generic required code to make barebox work on x86. Note: Resetting the CPU is unfinished yet. I need some ideas how to reset this kind of architecture gracefully. Signed-off-by: Juergen Beisert <jbe@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>