linux.git/Documentation/devicetree/bindings/firmware, branch v4.16

Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2017-11-17T00:05:01+00:00

Pull ARM SoC driver updates from Arnd Bergmann:
 "This branch contains platform-related driver updates for ARM and
  ARM64, these are the areas that bring the changes:

  New drivers:

   - driver support for Renesas R-Car V3M (R8A77970)

   - power management support for Amlogic GX

   - a new driver for the Tegra BPMP thermal sensor

   - a new bus driver for Technologic Systems NBUS

  Changes for subsystems that prefer to merge through arm-soc:

   - the usual updates for reset controller drivers from Philipp Zabel,
     with five added drivers for SoCs in the arc, meson, socfpa,
     uniphier and mediatek families

   - updates to the ARM SCPI and PSCI frameworks, from Sudeep Holla,
     Heiner Kallweit and Lorenzo Pieralisi

  Changes specific to some ARM-based SoC

   - the Freescale/NXP DPAA QBMan drivers from PowerPC can now work on
     ARM as well

   - several changes for power management on Broadcom SoCs

   - various improvements on Qualcomm, Broadcom, Amlogic, Atmel,
     Mediatek

   - minor Cleanups for Samsung, TI OMAP SoCs"

[ NOTE! This doesn't work without the previous ARM SoC device-tree pull,
  because the R8A77970 driver is missing a header file that came from
  that pull.

  The fact that this got merged afterwards only fixes it at this point,
  and bisection of that driver will fail if/when you walk into the
  history of that driver.           - Linus ]

* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (96 commits)
  soc: amlogic: meson-gx-pwrc-vpu: fix power-off when powered by bootloader
  bus: add driver for the Technologic Systems NBUS
  memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg()
  soc: qcom: remove unused label
  soc: amlogic: gx pm domain: add PM and OF dependencies
  drivers/firmware: psci_checker: Add missing destroy_timer_on_stack()
  dt-bindings: power: add amlogic meson power domain bindings
  soc: amlogic: add Meson GX VPU Domains driver
  soc: qcom: Remote filesystem memory driver
  dt-binding: soc: qcom: Add binding for rmtfs memory
  of: reserved_mem: Accessor for acquiring reserved_mem
  of/platform: Generalize /reserved-memory handling
  soc: mediatek: pwrap: fix fatal compiler error
  soc: mediatek: pwrap: fix compiler errors
  arm64: mediatek: cleanup message for platform selection
  soc: Allow test-building of MediaTek drivers
  soc: mediatek: place Kconfig for all SoC drivers under menu
  soc: mediatek: pwrap: add support for MT7622 SoC
  soc: mediatek: pwrap: add common way for setup CS timing extenstion
  soc: mediatek: pwrap: add MediaTek MT6380 as one slave of pwrap
  ..

dt-bindings: Remove leading zeros from bindings notation

2017-11-09T23:05:05+00:00

Improve the binding example by removing all the leading zeros to fix the
following dtc warnings:

Warning (unit_address_format): Node /XXX unit name should not have leading 0s

Converted using the following command:

perl -p -i -e 's/\@0+([0-9a-f])/\@$1/g' `find ./Documentation/devicetree/bindings "*.txt"`

Some unnecessary changes were manually fixed.

Signed-off-by: Marco Franchi 
Signed-off-by: Rob Herring

firmware: qcom: scm: Expose download-mode control

2017-10-12T04:48:27+00:00

In order to aid post-mortem debugging the Qualcomm platforms provide a
"memory download mode", where the boot loader will provide an interface
for custom tools to "download" the content of RAM to a host machine.

The mode is triggered by writing a magic value somewhere in RAM, that is
read in the boot code path after a warm-restart. Two mechanism for
setting this magic value are supported in modern platforms; a direct SCM
call to enable the mode or through a secure io write of a magic value.

In order for a normal reboot not to trigger "download mode" the magic
must be cleared during a clean reboot.

Download mode has to be enabled by including qcom_scm.download_mode=1 on
the command line.

Reviewed-by: Stephen Boyd 
Signed-off-by: Bjorn Andersson 
Signed-off-by: Andy Gross

firmware: Add coreboot device tree binding documentation

2017-04-08T16:05:36+00:00

This patch adds documentation describing a device tree binding for the
coreboot firmware. It is meant to be dynamically added during boot and
contains address definitions for the coreboot table (a list of
variable-sized descriptors providing information about various compile-
and run-time generated firmware parameters) and the CBMEM area (the
structure containing most run-time resident memory regions set up by
coreboot).

These definitions allow kernel drivers to easily access data contained
in and pointed to by these regions (such as coreboot's in-memory log).
(An example implementation can be seen in the following patch)

Signed-off-by: Julius Werner 
Signed-off-by: Thierry Escande 
Acked-by: Rob Herring 
Signed-off-by: Greg Kroah-Hartman

Merge tag 'qcom-drivers-for-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux into next/drivers

2016-11-30T21:49:14+00:00

Pull "Qualcomm ARM Based Driver Updates for v4.10 - Part 2" from Andy Gross:

* Fixup QCOM SCM to support MSM8996

* tag 'qcom-drivers-for-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/agross/linux:
  firmware: qcom: scm: Return PTR_ERR when devm_clk_get fails
  firmware: qcom: scm: Remove core, iface and bus clocks dependency
  dt-bindings: firmware: scm: Add MSM8996 DT bindings

dt-bindings: firmware: scm: Add MSM8996 DT bindings

2016-11-23T17:02:26+00:00

Add SCM DT bindings for Qualcomm's MSM8996 platform.

Acked-by: Rob Herring 
Signed-off-by: Sarangdhar Joshi 
Reviewed-by: Stephen Boyd 
Acked-by: Bjorn Andersson 
Signed-off-by: Andy Gross

dt-bindings: firmware: Allow child nodes inside the Tegra BPMP

2016-11-18T13:33:44+00:00

The BPMP implements some services which must be represented by separate
nodes. For example, it can provide access to certain I2C controllers,
and the I2C bindings represent each I2C controller as a device tree
node. Update the binding to describe how the BPMP supports this.

Signed-off-by: Stephen Warren 
Acked-by: Rob Herring 
Acked-by: Jon Hunter 
[treding@nvidia.com: renamed bpmp-i2c to i2c as per Rob]
Signed-off-by: Thierry Reding

dt-bindings: Add power domains to Tegra BPMP firmware

2016-11-18T13:33:43+00:00

The Tegra186 BPMP is also a provider of power domains. Enhance the
device tree binding to describe this.

Signed-off-by: Stephen Warren 
Acked-by: Rob Herring 
Acked-by: Jon Hunter 
Signed-off-by: Thierry Reding

dt-bindings: firmware: Add bindings for Tegra BPMP

2016-11-18T13:33:41+00:00

The Boot and Power Management Processor (BPMP) is a co-processor found
in Tegra SoCs. It is designed to handle the early stages of the boot
process as well as to offload power management tasks (such as clocks,
resets, powergates, ...).

The binding document defines the resources that are used by the BPMP
firmware, which implements the interprocessor communication (IPC)
between the CPU and the BPMP.

Signed-off-by: Joseph Lo 
Acked-by: Stephen Warren 
Acked-by: Rob Herring 
Acked-by: Jon Hunter 
Signed-off-by: Thierry Reding

documentation: Add secure monitor bindings documentation

2016-09-01T22:27:06+00:00

Add the binding documentation for the Amlogic secure monitor driver.

Acked-by: Rob Herring 
Signed-off-by: Carlo Caione 
Signed-off-by: Kevin Hilman