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20 Commits

Author SHA1 Message Date
Uwe Kleine-König 25ce695b54 bootstate: probe bootstate later
state must be loaded after the nand driver, otherwise it fails because the
backend is missing. For similar reasons bootstate must come after state.
Move them to the late stage until barebox can do deferred probing.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-06-10 13:42:33 +02:00
Marc Kleine-Budde 6a11cd1539 bootstate: add framework for redundant boot scenarios
There are several use cases where a redundant Linux system is needed. The
barebox,bootstate framework provides the building blocks to model different
use cases without the need to start from the scratch over and over again.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
2015-06-10 13:42:33 +02:00
Uwe Kleine-König 57bce3d6cb state: return -EPROBE_DEFER if the backend isn't available 2015-06-10 13:36:21 +02:00
Marc Kleine-Budde 827421e7d5 state: backend: support phandle and of_path references
This patch improves the backend property, it can be either a phandle or a
of_path. During probe() of the state driver the backend property is
dereferenced and the resulting of_path is saved in the state context. In a
later patch it will be used to generate a phandle reference to the backend
during DT fixup.

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2015-06-10 13:35:26 +02:00
Marc Kleine-Budde 885a1cf27e of_path: of_find_path(): add possibility to return .bb device
This patch adds a flags argument to the of_find_path() function. The only flag
defined for now is OF_FIND_PATH_FLAGS_BB. When used on NAND devices, the
function returns the bad block aware device (the ".bb" device).

Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2015-04-23 08:12:28 +02:00
Sascha Hauer 1487e6b9ad state: add framework for persistent state handling
This patch adds a framework to describe, access, store and restore a set of
variables. A state variable set can be fully described in a devicetree node.
This node could be part of the regular devicetree blob or it could be an extra
devicetree solely for the state. The state variable set contains variables of
different types and a place to store the variable set.

For more information see:
    Documentation/devicetree/bindings/barebox/barebox,state.rst

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2015-03-12 08:28:31 +01:00
Sascha Hauer ed6e965824 resource: Let dev_request_mem_region return an error pointer
For all users fix or add the error check.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-09-16 08:32:10 +02:00
Sascha Hauer 9d518ba397 resource: Let dev_get_resource return an error pointer
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-09-16 08:32:09 +02:00
Sascha Hauer f8327af20c Merge branch 'for-next/ioresource' 2014-05-05 11:05:51 +02:00
Lucas Stach 9c63e92baa treewide: fix signedness mixups in printf format specifiers
This most likely doesn't fix any real bugs, but it's the
right thing to do and reduces the noise level with static
checkers.

Signed-off-by: Lucas Stach <dev@lynxeye.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-04-23 09:05:51 +02:00
Michel Stam 4d94f56c6c common: Allow for I/O mapped I/O
Rework the current framework so that I/O mapped I/O resources are
also possible.

Signed-off-by: Michel Stam <michel@reverze.net>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-04-08 08:17:55 +02:00
Sascha Hauer ae39ba29c6 misc: Add devicetree SRAM driver
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-01-29 10:29:47 +01:00
Sascha Hauer 27da1665d3 misc Kconfig: always ask for misc devices
The "Misc devices" menu does not enable anything by itself, so make it a
regular menu rather than a menuconfig.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2014-01-29 10:29:43 +01:00
Sascha Hauer 73b0d228e5 driver: Attach info callback to device, not to driver
Since the info is device specific and not driver specific, attach
the callback to the device. This makes it possible to have a info
callback for a device which does not have a driver attached.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-05-30 12:18:27 +02:00
Alexander Shiyan 6a256321b8 Use new device_platform_driver() macro for drivers
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2013-02-13 09:23:28 +01:00
Alexander Shiyan 4c20f9af97 Cleanup Kconfig files
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>
2012-12-08 12:22:12 +01:00
Sascha Hauer 72703410fe misc JTAG: include fixes
common.h should come first, other include files implicitely depend
on it. Also, remove unused fs.h and remove commented line.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-10-26 09:08:51 +02:00
Sascha Hauer 7cbd1011a0 misc JTAG: Let Jtag driver depend on GENERIC_GPIO
It uses the gpio functions, so let it depend on GENERIC_GPIO.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-10-26 08:56:42 +02:00
Jean-Christophe PLAGNIOL-VILLARD 3c5327e660 switch all platform_bus device/driver registering to platform_driver/device_register
now register_driver and register_device are for bus only usage.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-10-04 15:19:12 +02:00
Wjatscheslaw Stoljarski 082ee53440 Add JTAG bitbang driver
Signed-off-by: Wjatscheslaw Stoljarski <wjatscheslaw.stoljarski@kiwigrid.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
2012-08-13 21:38:50 +02:00