Commit Graph

6 Commits

Author SHA1 Message Date
Guennadi Liakhovetski
a463f73176 ARM: shmobile: kzm9g-reference: fix device-tree bindings and device names
Fix several device-tree bindings, that haven't been updated for newest
versions of respective drivers, and device names and pin numbers, left over
from non-DT and old pinctrl versions.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-21 22:03:50 +09:00
Simon Horman
5377762e2e ARM: shmobile: kzm9g: Trim reference DT_MACHINE_START
Remove .init_late and .restart from DT_MACHINE_START
for kzm9g reference as these are not necessary to
bring the board up which is the main aim of kzm9g reference.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-18 21:27:02 +09:00
Simon Horman
e30755f41d ARM: shmobile: kzm9g: Remove warning about SMP
Remove warning about SMP not working with the
clock initialisation used for kzm9g reference.

This is resolved by not selecting CONFIG_PREEMPT.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-18 21:27:02 +09:00
Guennadi Liakhovetski
f017d0119f ARM: shmobile: SDHI and MMCIF interfaces to kzm9g-reference
Add SDHI0 and SDHI2 interfaces to kzm9g-reference. With no pinctrl DT
support we cannot use GPIO card-detection and regulator switching.
Also update the MMCIF DT node to use all 8 data lines and avoid
redundant information in DT.

Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
[ horms+renesas@verge.net.au: Updated for pinmux changes by Laurent Pinchart ]
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-18 21:27:02 +09:00
Guennadi Liakhovetski
275cc1d4fc ARM: shmobile: parse DT and configure pinmux early on kzm9g-reference
GPIOs can be provided by the pinctrl subsystem, which can be initialised
by DT. Therefore DT has to be parsed before requesting GPIOs. Also non-DT
pinmux has to be configured early.

Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-18 21:27:02 +09:00
Simon Horman
b8b82b2983 ARM: shmobile: kzm9g: Reference DT implementation
Provide alternate board code for the kzm9g to demonstrate
how DT may be used given the current state of driver
device tree support. This is intended to act as a reference
for mach-shmobile developers.

Some notes:

* Brings up the GIC interrupt handler using device tree
* Brings up the following device using device tree:
  - MMCIF (MMC)
* Does not bring up the INTC interrupt controller at all,
  thus external devices may not be used. In particular,
  the SMSC ethernet device may not be used and thus
  NFS root may not be used.
* Uses existing C code and not device tree to initialise the following,
  which are needed for a working board:
  - SCIF (Serial)
  - CMT (Clock)
  - PFC (GPIO)

To use this alternate board code instead of the normal board code,
CONFIG_MACH_KZM9G_REFERENCE should be selected in the kernel config.
And the sh73a0-kzm9g-reference.dtb flattened device tree blob should be used.

Includes fix by Thierry Reding to no longer use gic_handle_irq()

Includes fixes by Guennadi Liakhovetski for recent pinmux changes.

Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-03-18 21:27:02 +09:00