Commit Graph

7 Commits

Author SHA1 Message Date
Linus Torvalds
ee1a8d402e ARM SoC device tree changes
These changes from 30 individual branches for the most part update device
 tree files, but there are also a few source code changes that have crept
 in this time, usually in order to atomically move over a driver from
 using hardcoded data to DT probing.
 
 A number of platforms change their DT files to use the C preprocessor,
 which is causing a bit of churn, but that is hopefully only this once.
 
 There are a few conflicts with the other branches unfortunately:
 
 * in exynos5440.dtsi and kirkwood-6281.dtsi, device nodes are added
   from multiple branches. Need to be careful to have the right
   set of closing braces as git gets this one wrong.
 
 * In kirkwood.dtsi, one 'ranges' line got split into two lines, while
   another line got added. Order of the lines does not matter.
 
 * in sama5d3.dtsi, some cleanup was merged the wrong way, causing
   a bogus conflict. We want the 'dmas' and 'dma-names' properties
   to get added here.
 
 * Two lines got removed independently in arch/arm/mach-mxs/mach-mxs.c
 
 * Contents get added independently in arch/arm/mach-omap2/cclock33xx_data.c
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1.4.12 (GNU/Linux)
 
 iQIVAwUAUdLnpGCrR//JCVInAQI50RAAsXbH1SGvjKJemXhRkFloPDYpCbgdDUFr
 ChUbjNV1xsY/jaNCfMa5/Qo7lgz/Ot7BpJef9fZn7ret+dc7nchqe/4iIkAokAUh
 E4ao9D1dP5aAA0ihdbSQHCZtR/0SUR81h6BoOVuo/1mvEiBaFbWAeYe8/6LJd9II
 OU1w9bDmjfZWYFUXs+j2VF76ueZQ+kz69XDKZUGtkqN76m1AL8lGDurj5jxvyllF
 VJns8d9q2nr2q9PferfajK6rkOIPaTpwKblxZHUgobCyOitZaiZM0NgF733TsNM6
 HXmhDhkcn7T81+SiHVfigJ/nxo9UgU4zNJCODF3WZIwGIj3FbxvCOpdCYi2NhCO8
 oLcgDk57tpoKpB3gvAmYVQHP9FIepFa/WAWyPIADA7PkpYrwgc4v+cLEHXpd8SRv
 viLLIa5QuNdMeaK+Md9OKmKZFd7uFD9jiMtmdm6IpEVDDjMgoteb2XSoEtNebmtY
 MfbW4okn118a2dFKKaPTKcXVW/a5FRp2JGfB0A58RQHaJWj3JsY1bFn/xWPEpTOA
 IWB/HHMln0LYTL2AXN9HcaL1jnGI1Wq5eWBurX+cXQ/ij1A6jfoRKYglx7AQqOHj
 iWcGYtKLLJCgiWFnLSwcljZhfoYr0/z7rhns6yo7/vhN0riy+M84OgN4HbAmUzc1
 Bgy9PnJTNo8=
 =8PtJ
 -----END PGP SIGNATURE-----

Merge tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC device tree changes from Arnd Bergmann:
 "These changes from 30 individual branches for the most part update
  device tree files, but there are also a few source code changes that
  have crept in this time, usually in order to atomically move over a
  driver from using hardcoded data to DT probing.

  A number of platforms change their DT files to use the C preprocessor,
  which is causing a bit of churn, but that is hopefully only this once"

* tag 'dt-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (372 commits)
  ARM: at91: dt: rm9200ek: add spi support
  ARM: at91: dt: rm9200: add spi support
  ARM: at91/DT: at91sam9n12: add SPI DMA client infos
  ARM: at91/DT: sama5d3: add SPI DMA client infos
  ARM: at91/DT: fix SPI compatibility string
  ARM: Kirkwood: Fix the internal register ranges translation
  ARM: dts: bcm281xx: change comment to C89 style
  ARM: mmc: bcm281xx SDHCI driver (dt mods)
  ARM: nomadik: add the new clocks to the device tree
  clk: nomadik: implement the Nomadik clocks properly
  ARM: dts: omap5-uevm: Provide USB Host PHY clock frequency
  ARM: dts: omap4-panda: Fix DVI EDID reads
  ARM: dts: omap4-panda: Add USB Host support
  arm: mvebu: enable mini-PCIe connectors on Armada 370 RD
  ARM: shmobile: irqpin: add a DT property to enable masking on parent
  ARM: dts: AM43x EPOS EVM support
  ARM: dts: OMAP5: Add bandgap DT entry
  ARM: dts: AM33XX: Add pinmux configuration for CPSW to am335x EVM
  ARM: dts: AM33XX: Add pinmux configuration for CPSW to EVMsk
  ARM: dts: AM33XX: Add pinmux configuration for CPSW to beaglebone
  ...
2013-07-02 14:23:01 -07:00
Huang Shijie
85bf6d4e4b drivers: bus: add a new driver for WEIM
The WEIM(Wireless External Interface Module) works like a bus.
You can attach many different devices on it, such as NOR, onenand.

In the case of i.MX6q-sabreauto, the NOR is connected to WEIM.

This patch also adds the devicetree binding document.
The driver only works when the devicetree is enabled.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
2013-06-17 16:04:28 +08:00
Lorenzo Pieralisi
ed69bdd8fd drivers: bus: add ARM CCI support
On ARM multi-cluster systems coherency between cores running on
different clusters is managed by the cache-coherent interconnect (CCI).
It allows broadcasting of TLB invalidates and memory barriers and it
guarantees cache coherency at system level through snooping of slave
interfaces connected to it.

This patch enables the basic infrastructure required in Linux to handle and
programme the CCI component.

Non-local variables used by the CCI management functions called by power
down function calls after disabling the cache must be flushed out to main
memory in advance, otherwise incoherency of those values may occur if they
are sitting in the cache of some other CPU when power down functions
execute. Driver code ensures that relevant data structures are flushed
from inner and outer caches after the driver probe is completed.

CCI slave port resources are linked to set of CPUs through bus masters
phandle properties that link the interface resources to masters node in
the device tree.

Documentation describing the CCI DT bindings is provided with the patch.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
2013-05-29 15:50:34 -04:00
Thomas Petazzoni
fddddb52a6 bus: introduce an Marvell EBU MBus driver
The Marvell EBU SoCs have a configurable physical address space
layout: the physical ranges of memory used to address PCI(e)
interfaces, NOR flashes, SRAM and various other types of memory are
configurable by software, through a mechanism of so-called 'address
decoding windows'.

This new driver mvebu-mbus consolidates the existing code to address
the configuration of these memory ranges, which is spread into
mach-mvebu, mach-orion5x, mach-mv78xx0, mach-dove and mach-kirkwood.

Following patches convert each Marvell EBU SoC family to use this
driver, therefore removing the old code that was configuring the
address decoding windows.

It is worth mentioning that the MVEBU_MBUS Kconfig option is
intentionally added as a blind option. The new driver implements and
exports the mv_mbus_dram_info() function, which is used by various
Marvell drivers throughout the tree to get access to window
configuration parameters that they require. This function is also
implemented in arch/arm/plat-orion/addr-map.c, which ultimately gets
removed at the end of this patch series. So, in order to preserve
bisectability, we want to ensure that *either* this new driver, *or*
the legacy code in plat-orion/addr-map.c gets compiled in.

By making MVEBU_MBUS a blind option, we are sure that only a platform
that does 'select MVEBU_MBUS' will get this new driver compiled
in. Therefore, throughout the next patches that convert the Marvell
sub-architectures one after the other to this new driver, we add the
'select MVEBU_MBUS' and also ensure to remove plat-orion/addr-map.c
from the build for this specific sub-architecture. This ensures that
bisectability is preserved.

Ealier versions of this driver had a DT binding, but since those were
not yet agreed upon, they were removed. The driver still uses
of_device_id to find the SoC specific details according to the string
passed to mvebu_mbus_init(). The plan is to re-introduce a proper DT
binding as a followup set of patches.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
2013-03-28 19:04:16 +00:00
Tony Lindgren
770b6cb4d2 ARM: OMAP: Fix drivers to depend on omap for internal devices
These devices are not available on other architectures, so
let's limit them to omap.

If the driver subsystem maintainers want to build test
system wide changes without building for each target,
it's easy to carry a test patch that just strips out the
depends entries from Kconfig files.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-12-16 15:23:37 -08:00
Santosh Shilimkar
0ee7261c92 drivers: bus: Move the OMAP interconnect driver to drivers/bus/
OMAP interconnect drivers are used for the interconnect error handling.
Since they are bus driver, lets move it to newly created drivers/bus.

Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-09-19 16:53:26 +02:00
Kishon Vijay Abraham I
26a84b3eae drivers: bus: add a new driver for omap-ocp2scp
Adds a new driver *omap-ocp2scp*. This driver takes the responsibility of
creating all the devices that is connected to OCP2SCP. In the case of OMAP4,
USB2PHY is connected to ocp2scp.

This also includes device tree support for ocp2scp driver and
the documentation with device tree binding information is updated.

Acked-by: Felipe Balbi <balbi@ti.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2012-08-22 14:31:49 +02:00