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Merge basic support for the Mediatek Cortex-A7 SoCs from Matthias Brugger:
Support is quite basic, as the only component working up to now are the
timers.
* tag 'v3.17-next-mediatek-support' of https://github.com/mbgg/linux-mediatek:
arm: mediatek: add dts for Aquaris5 mobile phone
dt-bindings: add documentation for Mediatek SoC
arm: add basic support for Mediatek MT6589 boards
Signed-off-by: Matthias Brugger matthias.bgg@gmail.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This adds a DT binding documentation for the MT6589 SoC from Mediatek.
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Acked-by: Rob Herring <robh@kernel.org>
This adds a generic devicetree board file and a dtsi for boards
based on MT6589 SoCs from Mediatek.
Apart from the generic parts (gic, clocks) the only component
currently supported are the timers.
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
- add callbacks exynos_suspend() and exynos_powered_up()
for support cpuidle through mcpm
- skip exynos_cpuidle for exynos5420 because is uses
cpuidle-big-liggle generic cpuidle driver
- add generic functions to calculate cpu number is used
for pmu and this is required for exynos5420 multi-cluster
- add of_device_id structure for big.LITTLE cpuidle and
add "samsung,exynos5420" compatible string for exynos5420
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Merge tag 'exynos-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into next/soc
Merge "Samsung exynos cpuidle update for v3.17" from Kukjin Kim:
- add callbacks exynos_suspend() and exynos_powered_up()
for support cpuidle through mcpm
- skip exynos_cpuidle for exynos5420 because is uses
cpuidle-big-liggle generic cpuidle driver
- add generic functions to calculate cpu number is used
for pmu and this is required for exynos5420 multi-cluster
- add of_device_id structure for big.LITTLE cpuidle and
add "samsung,exynos5420" compatible string for exynos5420
* tag 'exynos-cpuidle' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: populate suspend and powered_up callbacks for mcpm
ARM: EXYNOS: do not allow cpuidle registration for exynos5420
cpuidle: big.LITTLE: init driver for exynos5420
cpuidle: big.LITTLE: Add ARCH_EXYNOS entry in config
ARM: EXYNOS: add generic function to calculate cpu number
cpuidle: big.LITTLE: add of_device_id structure
+ Linux 3.16-rc5
Signed-off-by: Olof Johansson <olof@lixom.net>
- kirkwood
- Remove mach-kirkwood/, It's fully supported in mach-mvebu/
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Merge tag 'mvebu-soc-3.17-2' of git://git.infradead.org/linux-mvebu into next/soc
Merge "ARM: mvebu SoC changes for v3.17 (round 2)" from Jason Cooper:
"Yeah, it's just one patch, but it's a beautiful one! Thanks to the
efforts of many people over the last couple years, and in particular,
Andrew Lunn, Kirkwood has been completely converted to DT."
- kirkwood
* Remove mach-kirkwood/, It's fully supported in mach-mvebu/
* tag 'mvebu-soc-3.17-2' of git://git.infradead.org/linux-mvebu:
ARM: Kirkwood: Remove mach-kirkwood
Signed-off-by: Olof Johansson <olof@lixom.net>
Nothing very fancy here, only the introduction from the new Allwinner A23 SoC.
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Merge tag 'sunxi-core-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into next/soc
Merge "Allwinner core additions for 3.17" from Maxime Ripard:
Nothing very fancy here, only the introduction from the new Allwinner A23 SoC.
* tag 'sunxi-core-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
ARM: sunxi: select MFD_SUN6I_PRCM when sun8i arch support is enabled
ARM: sunxi: Add earlyprintk support using R_UART (sun6i/sun8i)
ARM: sunxi: Introduce Allwinner A23 support
Signed-off-by: Olof Johansson <olof@lixom.net>
- Add devicetree support for i.MX1 and i.MX21 clock driver
- Use CLOCKSOURCE_OF_DECLARE() to initialize timer for DT targets
- Use of_clk_init() to initialize i.MX25 and i.MX27 clock driver in
device tree boot
- Remove i.MX1 camera support
- Remove i.MX27 IP Camera and Lite-Kit board support
- Add suspend and cpuidle support for i.mx6sx
- Clean up unused clk_register_clkdev() lookups
- Update imx-weim bus driver to support populating devices on a simple
bus
- Switch i.MX27 and i.MX6QDL clock driver to use macro for clock IDs
- Make i.MX51 a DT only platform and clean up the non-DT support code
- Support disabling supervisor protect via DT
- Random defconfig updates
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Merge tag 'imx-soc-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into next/soc
Merge "ARM: imx: SoC changes for 3.17" from Shawn Guo:
The i.MX SoC changes for 3.17:
- Add devicetree support for i.MX1 and i.MX21 clock driver
- Use CLOCKSOURCE_OF_DECLARE() to initialize timer for DT targets
- Use of_clk_init() to initialize i.MX25 and i.MX27 clock driver in
device tree boot
- Remove i.MX1 camera support
- Remove i.MX27 IP Camera and Lite-Kit board support
- Add suspend and cpuidle support for i.mx6sx
- Clean up unused clk_register_clkdev() lookups
- Update imx-weim bus driver to support populating devices on a simple
bus
- Switch i.MX27 and i.MX6QDL clock driver to use macro for clock IDs
- Make i.MX51 a DT only platform and clean up the non-DT support code
- Support disabling supervisor protect via DT
- Random defconfig updates
* tag 'imx-soc-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: (69 commits)
ARM: imx: clk-vf610: fix FlexCAN clock gating
ARM: i.MX: Use CLOCKSOURCE_OF_DECLARE() for DT targets
ARM: i.MX53: globally disable supervisor protect
ARM: i.MX: allow disabling supervisor protect via DT
ARM: i.MX27 clk: Add 26 MHz oscillator circuit clock gate
ARM: i.MX27 clk: Remove unused definitions
ARM: i.MX27 clk: Introduce DT include for clock provider
ARM: i.MX: Remove Freescale Logic Product Development i.MX27 Lite-Kit board support
ARM: i.MX: Remove excess symbols ARCH_MX1, ARCH_MX25 and MACH_MX27
ARM: i.MX: Remove i.MX1 camera support
ARM: imx: use PTR_ERR_OR_ZERO
bus: imx-weim: populate devices on a simple bus
ARM: imx: build cpu_is_imx6sl function conditionally
ARM: imx: imx6sx uses imx6q cpuidle code
ARM: imx: drop PL310 errata 588369 and 727915
ARM: imx_v6_v7_defconfig: add FSL_EDMA and PRINTK_TIME
ARM: imx: clk-imx6sx: register SSI/SSI_IPG as shared gate clocks
ARM: imx_v6_v7_defconfig: Enable flexcan driver for can support
ARM: imx_v6_v7_defconfig: Enable STMPE gpio support
ARM: imx: mark .dt_compat as const
...
Signed-off-by: Olof Johansson <olof@lixom.net>
* Add legacy clocks for SCI for SoCs that do not yet have CCF support.
This is to allow SCI (serial) devices to be enabled using DT and
will be removed after CCF support is added for each SoC.
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Merge tag 'renesas-clock2-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/soc
Merge "Second Round of Renesas ARM Based SoC Clock Updates for v3.17" from
Simon Horman:
- Add legacy clocks for SCI for SoCs that do not yet have CCF support.
This is to allow SCI (serial) devices to be enabled using DT and
will be removed after CCF support is added for each SoC.
* tag 'renesas-clock2-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: sh73a0: add SCI clock support for DT
ARM: shmobile: r8a7740: correct SCI clock support for DT
ARM: shmobile: r8a73a4: add SCI clock support for DT
ARM: shmobile: r8a7778: add SCI clock support for DT
Signed-off-by: Olof Johansson <olof@lixom.net>
In order to support cpuidle through mcpm, suspend and powered-up
callbacks are required in mcpm platform code.
Hence populate the same callbacks.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Signed-off-by: Chander Kashyap <k.chander@samsung.com>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Exynos5420 is big.Little Soc. It uses cpuidle-big-litle generic cpuidle driver.
Hence do not allow exynos cpuidle driver registration for Exynos5420.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Add support to select generic big-little cpuidle driver for Samsung Exynos
series SoC's. This is required for Exynos big-llittle SoC's eg, Exynos5420.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
The address of cpu power registers in pmu is based on cpu number
offsets. This function calculate the same. This is essentially
required in case of multi-cluster SoC's e.g Exynos5420.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This driver will be used by many big.Little Soc's. As of now it does
string matching of hardcoded compatible string to init the driver. This
comparison list will keep on growing with addition of new SoC's.
Hence add of_device_id structure to collect the compatible strings of
SoC's using this driver.
Signed-off-by: Chander Kashyap <chander.kashyap@linaro.org>
Reviewed-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Extend the clock control for FlexCAN with the second gate which
enable the clocks in the Clock Divider (CCM_CSCDR2) register too.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Most peripherals on the i.MX53 have an
Off-Platform Peripheral Access Control Register (OPACR)
in which the access rights (together with the MPROT registers) can be declared.
However, this does not seem to work for example for SSI1+SDMA, because the
supervisor bit is not set for the SDMA unit.
It does work for SSI2, the QSB for example uses SSI2 for its audio. But SSI2 only
works because it does NOT have an OPACR.
The right solution would be to fix the access rights for the SDMA, but the unit
responsible for this is the Central Security Unit (CSU), which of course is NOT
documented. So, until documentation for this is openly available, turn off the
supervisor protection because it cripples the hardware.
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
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>
This patch removes definitions which not used anywhere in the driver.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Use clock defines in order to make devicetrees more human readable.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
The board has no insufficient support to be fully functional and seems
has no users. This patch removes support for this board.
However, the support may be added in the future by using the devicetree.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
This patch removes excess symbols ARCH_MX1, ARCH_MX25 and MACH_MX27.
Instead we use SOC_IMX*.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
i.MX1 camera driver has been removed by the commit 90b055898e.
This patch removes remaining support files for this camera.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
There could be some memory map devices located in
a certain chip select region of the i.MX WEIM.
The devices could be attached to a simple bus(for
example, a AXI bus) whose root node is one child
device tree node of the i.MX WEIM device tree node.
There should be a bridge(very likely, software
transparent) bewteen the i.MX WEIM and the simple bus.
This patch makes the i.MX WEIM driver possible to
populate devices on a simple bus. In this way, people
may try various IPs(in a FPGA, maybe) outside of i.MX
chips with the i.MX WEIM embedded.
Signed-off-by: Liu Ying <Ying.Liu@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
imx6q_pm_enter calls imx6sl_set_wait_clk when run on an imx6sl
based machine. However if support for imx6sl is not enabled
at compile time, this prevents us from building the kernel and
we get this link error instead:
arch/arm/mach-imx/built-in.o: In function `imx6q_pm_enter':
:(.text+0x4b84): undefined reference to `imx6sl_set_wait_clk'
This makes the cpu_is_imx6sl function conditionally return false
if imx6sl is disabled at compile-time, which matches what the
older cpu_is_mx* macros did. We have similar inline functions for
the other imx6 variants, but so far I have not run into a case
where the extra #ifdef is necessary.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Building a kernel for imx6sx but without imx6q support results in
this link error because of the missing cpuidle driver:
arch/arm/mach-imx/built-in.o: In function `imx6sx_init_late'::(.init.text+0xc228):
undefined reference to `imx6q_cpuidle_init'
This patch adds a Makefile entry so we always build support for
the imx6q_cpuidle code when at least one of the 6sx or 6q variants
are enabled.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
The PL310 integrated on i.MX6 series and VF610 are revision r3p1 and
later. Per ARM PL310 errata document, 588369 is fixed in r2p0 and
727915 is fixed in r3p1. Neither is needed for i.MX6 or VF610. So
let's drop them.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Add EDMA for DMA support for Vybrid SoCs. Also add printk time.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
SSI and SSI_IPG are clocks controlled by the same clock gating field, so
register them with imx_clk_gate2_shared.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Enable STMPE gpio support as this is used on MX6 Data Modul edm-qmx6
board.
Signed-off-by: Silvio Fricke <silvio.fricke@gmail.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Otherwise GCC will mark the .init.rodata section R/W, which causes
a compile error once we add other real R/O data.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
It is only the mx6quad variant that can run up to 1.2GHz, so add the check
accordingly.
This avoids getting the following warning on a mx6solo:
failed to disable 1.2 GHz OPP
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Replace .init_time() hook with of_clk_init() for DT targets.
Based on:
d4347ee ARM: i.MX27 clk: Use of_clk_init() for DT case
Signed-off-by: Denis Carikli <denis@eukrea.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
The gpt0 timer clock has been wrong since:
6bbaec5 ARM i.MX25: implement clocks using common clock framework
Signed-off-by: Denis Carikli <denis@eukrea.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
This patch adds devicetree support CCM module for i.MX21 CPUs.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
This is a cleanup for i.MX21 clk driver. This change includes:
- Reduce license text.
- Remove unused definitions.
- Remove unused #include and sort the rest.
- Remove useless comment.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
This patch removes clk_register_clkdev() for the clocks that do not
have any users for boards and drivers.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
This patch perform rework i.MX21 clock initialization. This includes
adding missing clocks and sort clocks by register address.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
mx51 and mx53 are device tree only platforms, so we no longer need all these
calls to clk_register_clkdev().
Only keep cpu0 and gpc_dvfs clk_register_clkdev() calls.
Tested on imx51-babbage and imx53-qsb boards.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Add standby mode support for suspend, to enter standby mode:
echo standby > /sys/power/state;
Use UART or RTC alarm to wake up system, when system enters
standby mode, SOC will enter STOP mode with ARM core kept
power on and 24M XTAL on.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
According to hardware design, mem bit must be clear before
entering DSM mode, as ARM core will be power gated in DSM mode.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Instead of using enum for clock ID, let's switch imx6qdl clock driver to
use macro. In this case, device tree can reuse these macros to improve
readability.
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
Add suspend support for i.MX6SX.
To enter suspend, echo mem > /sys/power/state.
To exit suspend, using RTC alarm or enable debug UART wakeup.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
The board has no insufficient support to be fully functional and seems
has no users. This patch removes support for this board. However, the
support may be added in the future by using the devicetree.
Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Shawn Guo <shawn.guo@freescale.com>
