Commit Graph

23 Commits

Author SHA1 Message Date
Thomas Gleixner
75a6faf617 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 422
Based on 1 normalized pattern(s):

  this program is free software you can redistribute it and or modify
  it under the terms and conditions of the gnu general public license
  version 2 as published by the free software foundation

extracted by the scancode license scanner the SPDX license identifier

  GPL-2.0-only

has been chosen to replace the boilerplate/reference in 101 file(s).

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Allison Randal <allison@lohutok.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190531190113.822954939@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-05 17:37:15 +02:00
Kefeng Wang
850bea2335 arm: Remove unnecessary of_platform_populate with default match table
After patch "of/platform: Add common method to populate default bus",
it is possible for arch code to remove unnecessary callers of
of_platform_populate with default match table.

Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Ray Jui <rjui@broadcom.com>
Cc: Lee Jones <lee@kernel.org>
Cc: Krzysztof Halasa <khalasa@piap.pl>
Cc: Kukjin Kim <kgene@kernel.org>
Cc: Rob Herring <robh@kernel.org>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Santosh Shilimkar <ssantosh@kernel.org>
Cc: Roland Stigge <stigge@antcom.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Haojian Zhuang <haojian.zhuang@gmail.com>
Cc: Heiko Stuebner <heiko@sntech.de>
Cc: Viresh Kumar <vireshk@kernel.org>
Cc: Shiraz Hashim <shiraz.linux.kernel@gmail.com>
Cc: Tony Prisk <linux@prisktech.co.nz>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <linux@arm.linux.org.uk>
Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com>
Signed-off-by: Rob Herring <robh@kernel.org>
2016-06-23 14:58:37 -05:00
Russell King
981b6714db ARM: provide improved virt_to_idmap() functionality
For kexec, we need more functionality from the IDMAP system.  We need to
be able to convert physical addresses to their identity mappped versions
as well as virtual addresses.

Convert the existing arch_virt_to_idmap() to deal with physical
addresses instead.

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-05-03 11:13:54 +01:00
Linus Torvalds
5a6b7e53d0 ARM: DT updates for v4.6
These are all the updates to device tree files for 32-bit platforms,
 plus a couple of related 64-bit updates:
 
 New SoC support:
  - Allwinner A83T
  - Axis Artpec-6 SoC
  - Mediatek MT7623 SoC
  - TI Keystone K2G SoC
  - ST Microelectronics stm32f469
 
 New board or machine support:
  - ARM Juno R2
  - Buffalo Linkstation LS-QVL and LS-GL
  - Cubietruck plus
  - D-Link DIR-885L
  - DT support for ARM RealView PB1176 and PB11MPCore
  - Google Nexus 7
  - Homlet v2
  - Itead Ibox
  - Lamobo R1
  - LG Optimus Black
  - Logicpd dm3730
  - Raspberry Pi Model A
 
 Other changes include
  - Lots of updates for Qualcomm APQ8064, MSM8974 and others
  - Improved support for Nokia N900 and other OMAP machines
  - Common clk support for lpc32xx
  - HDLCD display on ARM
  - Improved stm32f429 support
  - Improved Renesas device support, r8a779x and others
  - Lots of Rockchip updates
  - Samsung cleanups
  - ADC support for Atmel SAMA5D2
  - BCM2835 (Raspberry Pi) improvements
  - Broadcom Northstar Plus enhancements
  - OMAP GPMC rework
  - Several improvements for Atmel SAMA5D2 / Xplained
  - Global change to remove inofficial "arm,amba-bus" compatible string
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Merge tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM DT updates from Arnd Bergmann:
 "These are all the updates to device tree files for 32-bit platforms,
  plus a couple of related 64-bit updates:

  New SoC support:
   - Allwinner A83T
   - Axis Artpec-6 SoC
   - Mediatek MT7623 SoC
   - TI Keystone K2G SoC
   - ST Microelectronics stm32f469

  New board or machine support:
   - ARM Juno R2
   - Buffalo Linkstation LS-QVL and LS-GL
   - Cubietruck plus
   - D-Link DIR-885L
   - DT support for ARM RealView PB1176 and PB11MPCore
   - Google Nexus 7
   - Homlet v2
   - Itead Ibox
   - Lamobo R1
   - LG Optimus Black
   - Logicpd dm3730
   - Raspberry Pi Model A

  Other changes include
   - Lots of updates for Qualcomm APQ8064, MSM8974 and others
   - Improved support for Nokia N900 and other OMAP machines
   - Common clk support for lpc32xx
   - HDLCD display on ARM
   - Improved stm32f429 support
   - Improved Renesas device support, r8a779x and others
   - Lots of Rockchip updates
   - Samsung cleanups
   - ADC support for Atmel SAMA5D2
   - BCM2835 (Raspberry Pi) improvements
   - Broadcom Northstar Plus enhancements
   - OMAP GPMC rework
   - Several improvements for Atmel SAMA5D2 / Xplained
   - Global change to remove inofficial "arm,amba-bus" compatible
     string"

* tag 'armsoc-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (350 commits)
  ARM, ARM64: dts: drop "arm,amba-bus" in favor of "simple-bus"
  ARM: dts: artpec: dual-license on artpec6.dtsi
  ARM: dts: ux500: add synaptics RMI4 for Ux500 TVK DT
  arm64: dts: juno/vexpress: fix node name unit-address presence warnings
  arm64: dts: foundation-v8: add SBSA Generic Watchdog device node
  ARM: dts: at91: sama5d2 Xplained: add leds node
  ARM: dts: at91: sama5d2 Xplained: add user push button
  ARM: dts: at91: sama5d2 Xplained: set pin muxing for usb gadget and usb host
  ARM: dts: stm32f429: Enable Ethernet on Eval board
  ARM: dts: omap3-sniper: TWL4030 keypad support
  Revert "ARM: dts: DRA7: Add dt nodes for PWMSS"
  ARM: dts: dm814x: dra62x: Disable wait pin monitoring for NAND
  ARM: dts: dm814x: dra62x: Fix NAND device nodes
  ARM: dts: stm32f429: Add Ethernet support
  ARM: dts: stm32f429: Add system config bank node
  ARM: dts: at91: sama5d2: add nand0 and nfc0 nodes
  ARM: dts: at91: sama5d2: add dma properties to UART nodes
  ARM: dts: at91: sama5d2 Xplained: Correct the macb irq pinctrl node
  ARM: dts: exynos: Don't overheat the Odroid XU3-Lite on high load
  ARM: dts: exynos: Add cooling levels for Exynos5422/5800 CPUs
  ...
2016-03-20 15:15:48 -07:00
Nishanth Menon
3b2d3dc9fb ARM: keystone: Create new binding for K2G SoC
K2G SoC family is the newest version of the Keystone family of processors.

The technical reference manual for K2G can be found here:
http://www.ti.com/lit/ug/spruhy8/spruhy8.pdf

Add new bindings for K2G and the K2G evm. Also document these new bindings.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2016-02-25 09:23:34 -08:00
Russell King
2841029393 ARM: make virt_to_idmap() return unsigned long
Make virt_to_idmap() return an unsigned long rather than phys_addr_t.

Returning phys_addr_t here makes no sense, because the definition of
virt_to_idmap() is that it shall return a physical address which maps
identically with the virtual address.  Since virtual addresses are
limited to 32-bit, identity mapped physical addresses are as well.

Almost all users already had an implicit narrowing cast to unsigned long
so let's make this official and part of this interface.

Tested-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2016-02-08 15:47:28 +00:00
Nishanth Menon
01cf228b55 ARM: keystone: Update compatible to have SoC specific matches
With future SoCs of keystone2 family, the generic compatible match
may not be sufficient to handle SoC specific handling. So introduce
matches based on SoC compatiblity.

Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
2015-10-06 09:51:08 -07:00
Russell King
c0b759d87e ARM: keystone2: rename init_meminfo to pv_fixup
The init_meminfo() method is not about initialising meminfo - it's about
fixing up the physical to virtual translation so that we use a different
physical address space, possibly above the 4GB physical address space.
Therefore, the name "init_meminfo()" is confusing.

Rename it to pv_fixup() instead.

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-01 23:45:56 +01:00
Russell King
39b74fe82f ARM: keystone2: move address space switch printk into generic code
There is no point platform code doing this, let's move it into the
generic code so it doesn't get duplicated.

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-01 23:45:54 +01:00
Russell King
c8ca2b4b29 ARM: keystone2: move update of the phys-to-virt constants into generic code
Make the init_meminfo function return the offset to be applied to the
phys-to-virt translation constants.  This allows us to move the update
into generic code, along with the requirements for this update.

This avoids platforms having to know the details of the phys-to-virt
translation support.

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-01 23:45:50 +01:00
Russell King
30b5f4d612 ARM: keystone2: move platform notifier initialisation into platform init
We ideally want the init_meminfo function to do nothing but return the
delta to be applied to PHYS_OFFSET - it should do nothing else.  As we
can detect in platform init code whether we are running in the high
physical address space, move the platform notifier initialisation
entirely into the platform init code.

Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Tested-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-06-01 23:45:47 +01:00
Uwe Kleine-König
543c5040f5 ARM: make arrays containing machine compatible strings const
The definition

	static const char *axxia_dt_match[] __initconst = {
		...

defines a changable array of constant strings. That is you must not do:

	*axxia_dt_match[0] = 'k';

but

	axxia_dt_match[0] = "different string";

is fine. So the annotation __initconst is wrong and yields a compiler
error when other really const variables are added with __initconst.

As the struct machine_desc member dt_compat is declared as

	const char *const *dt_compat;

making the arrays const is the better alternative over changing all
annotations to __initdata.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2015-02-19 09:44:17 +01:00
Santosh Shilimkar
bbea06f3ef ARM: keystone: Drop use of meminfo since its not available anymore
Laura's series removed the meminfo structure and its no longer available.
Update keystone code to remove the usage of it.

Reported-by: Russell King - ARM Linux <linux@arm.linux.org.uk>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2014-06-05 22:20:54 +02:00
Ivan Khoronzhuk
b7ae8bf7bf ARM: keystone: remove redundant reset stuff
Remove reset stuff in flavour of using keystone reset driver:
driver/power/reset/keystone-reset.c

Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-27 09:48:52 -04:00
Santosh Shilimkar
14f3791439 ARM: keystone: Update the dma offset for non-dt platform devices
Tested-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-08 15:43:33 -04:00
Santosh Shilimkar
5eb3da7246 ARM: keystone: Switch over to coherent memory address space
With late code patching updates for LPAE machines has merged now and
memblock conversion from bootmem is on its way, Keystone can switch to
the coherent memory address space which starts beyond 4GB boundary.
The idmap alias needs are managed via virt_to_idmap() for boot purpose.

Tested-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-05-08 15:43:33 -04:00
Ivan Khoronzhuk
3babe30608 ARM: dts: keystone: use common "ti,keystone" compatible instead of -evm
As suggested by Olof Johansson at
http://www.spinics.net/lists/arm-kernel/msg314009.html.
It be better just keeping a "ti,keystone" top-level compatible and
just using that to probe. If so we don't have to touch the file
for new boards in the future.

So use common "ti,keystone" compatible in keystone.c for all boards.

Cc: Santosh Shilimkar <santosh.shilimkar@ti.com>
Cc: Olof Johansson <olof@lixom.net>

Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-03-20 17:00:27 -04:00
Murali Karicheri
f0a289e508 ARM: dts: keystone: update for supporting K2L/K2E EVMs
This patch add compatibility strings for k2hk, k2l and k2e EVMs

Cc: Olof Johansson <olof@lixom.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Kumar Gala <galak@codeaurora.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-02-25 16:24:19 -05:00
Santosh Shilimkar
8308a78db8 ARM: keystone: Make PM bus ready before populating platform devices
Keystone PM bus makes use of generic PM clock core backend. Since
generic PM clock core uses platform bus notifiers to track events like
ADD_DEVICE/DEL_DEVICE and to fill clock lists per each device, we need
to initialise Keystone PM domains before the platform devices have been
created.

Hence, fix it by moving keystone_pm_runtime_init() before platform
devices have been populated.

Reported-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-12-16 16:03:36 -05:00
Santosh Shilimkar
df595a9d70 ARM: keystone: enable DMA zone for LPAE
Keystone II peripheral devices support 32-bit DMA and hence can access only
first 2GB of the memory address space. So set the platform dma_zone_size
to handle that case.

Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-12-16 16:03:36 -05:00
Vincent Stehlé
ed882c3e72 ARM: keystone: fix compilation warning
Fix the following compilation warning:

  arch/arm/mach-keystone/keystone.c:74:2: warning: initialization from incompatible pointer type [enabled by default]
  arch/arm/mach-keystone/keystone.c:74:2: warning: (near initialization for ‘__mach_desc_KEYSTONE.restart’) [enabled by default]

Signed-off-by: Vincent Stehlé <vincent.stehle@freescale.com>
Cc: Robin Holt <holt@sgi.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: trivial@kernel.org
Signed-off-by: Olof Johansson <olof@lixom.net>
2013-07-23 11:03:54 -07:00
Santosh Shilimkar
f07cb6a089 ARM: keystone: Enable SMP support on Keystone machines
Add basic SMP support for Keystone machines. This does not
include support for CPU hotplug for now.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: arm@kernel.org

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-06-17 18:35:35 -04:00
Santosh Shilimkar
828989ad87 ARM: keystone: Add minimal TI Keystone platform support
Texas Instruments Keystone family of multi-core devices are
based on ARM Cortex A15. Patch adds basic definitions for a
new Keystone sub-architecture in ARM.

The TCI66xxK2H Communications Infrastructure Keystone SoCs
are member of the C66x family based on TI's new KeyStone 2
multi-core SoC Architecture designed specifically for high
performance wireless and networking infrastructure applications.
The SOCs contains many subsystems like Cortex A15 ARM CorePacs,
C66XX DSP CorePacs, MSMC memory controller, Tera Net bus,
IP Network, Navigator, Hyperlink, 1G/10G Ethernet, Radio layers
and queue based communication systems.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: arm@kernel.org

Acked-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2013-06-17 18:35:34 -04:00