Commit Graph

8 Commits

Author SHA1 Message Date
Steffen Trumtrar e57e4ab5fc ARM: i.MX: allow disabling supervisor protect via DT
The i.MX SoCs allow to setup fine grained access rights to peripherals on the
AIPS bus.
This is done via the Peripheral Access Register (PAR) in e.g. the i.MX21
or in later SoC versions the Off-Platform Peripheral Access Control Register
(OPACR), e.g. i.MX53.
Under certain circumstances this leads to problems in which bus masters are
not granted their access rights to peripherals.
To be able to disable these restrictions on DT platforms, add a helper function
that looks for AIPS nodes in the DT and disables them for every compatible node
it finds.
The compatible has to be declared in the mach-specific entry file, where this
helper function should then be called.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-07-18 16:11:39 +08:00
Shawn Guo d9654dceb3 ARM: imx: add basic imx6sx SoC support
Add basic suppport for i.MX6 SoloX SoC.

Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
2014-05-16 15:35:25 +08:00
Thierry Reding 1ddd35be8b ARM: imx: Include linux/err.h
The IS_ERR() macro is defined in the linux/err.h header file, so include
it explicitly.

Signed-off-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:15:12 +08:00
Shawn Guo a28875462b ARM: imx6: report soc info via soc device
The patch enables soc bus infrastructure and adds a function
imx_soc_device_init() to report soc info via soc device interface for
imx6qdl and imx6sl.  With the support, user space can get soc related
info by looking at sysfs like below.

  $ cat /sys/devices/soc0/machine
  Freescale i.MX6 Quad SABRE Smart Device Board
  $ cat /sys/devices/soc0/family
  Freescale i.MX
  $ cat /sys/devices/soc0/soc_id
  i.MX6Q
  $ cat /sys/devices/soc0/revision
  1.2

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:14:54 +08:00
Shawn Guo bfefdff8f9 ARM: imx: add soc revision helper functions
Similar to what we do for cpu type, the patch adds helper functions
imx_set_soc_revision() and imx_get_soc_revision() to maintain
imx_soc_revision in cpu.c.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-10-21 09:11:08 +08:00
Fabio Estevam e7feaaa75d ARM: mach-imx: cpu: Include "common.h"
Fix the following sparse warnings:

arch/arm/mach-imx/cpu.c:10:6: warning: symbol 'mxc_set_cpu_type' was not declared. Should it be static?
arch/arm/mach-imx/cpu.c:15:6: warning: symbol 'imx_print_silicon_rev' was not declared. Should it be static?
arch/arm/mach-imx/cpu.c:24:13: warning: symbol 'imx_set_aips' was not declared. Should it be static?

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-04-01 16:17:48 +08:00
Shawn Guo 50f2de6126 ARM: imx: include hardware.h rather than mach/hardware.h
It moves a bunch of header files included in hardware.h and itself
from mach-imx/include/mach to mach-imx, and updates users to include
hardware.h rather than mach/hardware.h.  The files in mach-imx/devices
will need to include "../hardware.h".

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-10-15 10:05:43 +08:00
Shawn Guo 3995eb8205 ARM: imx: merge plat-mxc into mach-imx
It's really unnecessary to have plat-mxc, and let's merge it into
mach-imx.  It's pretty much just a bunch of file renaming and
Kconfig/Makefile merge.

To make the change less invasive, we keep using Kconfig symbol
CONFIG_ARCH_MXC for mach-imx sub-architecture.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Arnd Bergmann <arnd@arndb.de>
2012-10-15 10:02:19 +08:00