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2015-05-20ARM: at91: remove mach/at91_ramc.h and mach/at91rm9200_mc.hAlexandre Belloni2-144/+0
mach/at91_ramc.h and mach/at91rm9200_mc.h aren't necessary anymore, remove them. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-20ARM: at91/pm: use the atmel-mc syscon definesAlexandre Belloni1-1/+1
Use the defines from atmel-mc.h instead of at91rm9200_sdramc.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-05-20ARM: at91: drop sam9_smc.cAlexandre Belloni1-98/+0
sam9_smc.c has no users anymore, remove it along with both sam9_smc.h and mach/at91sam9_smc.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-04-14Merge tag 'at91-cleanup4_bis' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91 into next/multiplatformArnd Bergmann1-4/+0
Pull "Fourth batch of cleanup for 4.1" from Nicolas Ferre: - 1 issues revealed by the kbuild test robot fixed - move of some functions and macros into relevant files to be able to streamline the at91 specific header afterwards * tag 'at91-cleanup4_bis' of git://git.kernel.org/pub/scm/linux/kernel/git/nferre/linux-at91: ARM: at91/pm: move AT91_MEMCTRL_* to pm.h ARM: at91/pm: move the standby functions to pm.c ARM: at91: fix pm_suspend.S compilation when ARMv6 is selected
2015-04-05ARM: at91/pm: move AT91_MEMCTRL_* to pm.hAlexandre Belloni1-4/+0
the AT91_MEMCTRL_* defines are only used by the pm code, move them to pm.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19ARM: at91: remove hardware.hAlexandre Belloni1-123/+0
hardware.h is now mostyl unused, move the remaining declarations to pm.c and remove it. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19ARM: at91: remove SoC headersAlexandre Belloni11-962/+0
Remove the now useless SoC headers. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19ARM: at91: remove useless mach/cpu.hAlexandre Belloni2-218/+0
mach/cpu.h is not used anymore, remove it. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-19ARM: at91: remove unused headersAlexandre Belloni2-281/+0
Following the switch to multiplatform, uncompress.h is not used anymore. Remove it. at91_dbgu.h is also not used anymore Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-16ARM: at91: remove useless includeAlexandre Belloni1-61/+0
Both drivers using the system timer are now converted to an MFD. mach/at91_st.h is now useless. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13ARM: at91: remove unused _matrix.h headersAlexandre Belloni7-628/+0
The matrix headers are not used anymore, remove them. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13ARM: at91: remove unused at91_ioremap_matrix and headerAlexandre Belloni1-23/+0
at91_ioremap_matrix and the at91_matrix.h header are not used anymore, remove them. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13ARM: at91: remove NEED_MACH_IO_HArnd Bergmann1-27/+0
The mach/io.h header on at91 is used to support a nonstandard I/O space window for the cf card driver. This changes the driver to use pci_ioremap_io in order to have the standard location, and then removes the custom mach/io.h. [alexandre.belloni@free-electrons.com: Added PCI dependency] Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-02-02ARM: at91: merge all SOC_AT91SAM9xxxAlexandre Belloni1-38/+14
Only use SOC_AT91SAM9 for all the at91sam9 SoCs. It removes all the empty at91sam9xxx.c SoC files. It also removes the useless at91_init_soc affectation procedure and its "init" function pointer. Only the SoC detection and display are kept for the at91sam9: at91_soc_is_enabled() and at91_boot_soc.map_io() function calls are also removed. It enables HAVE_AT91_SMD and HAVE_AT91_UTMI for all the sam9 SoCs but this only represents 96 bytes of uncompressed kernel code. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> [nicolas.ferre@atmel.com: different organization of the patches] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-26ARM: at91: remove unused mach/system_rev.hAlexandre Belloni1-27/+0
mach/system_rev.h is not used, remove it. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-15ARM: at91: move debug-macro.S into the common spaceAlexandre Belloni1-46/+0
Move debug-macro.S from include/mach/ to include/debug where all other common debug macros are. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-15ARM: at91: remove useless at91_sysirq_mask_rtxAlexandre Belloni1-35/+0
The irq fixup from at91_sysirq_mask_rtc and at91_sysirq_mask_rtt is now handled by aic_common_rtc_irq_fixup and aic_common_rtt_irq_fixup. Remove those useless functions. Also remove the now unused mach/at91_rtt.h header. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-15ARM: at91: remove unused mach/memory.hAlexandre Belloni1-26/+0
CONFIG_NEED_MACH_MEMORY_H is not set by any at91 platform, remove mach/memory.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-01-15ARM: at91: remove unneeded header fileNicolas Ferre1-80/+0
These GPIO pin descriptions are now moved with the pinctrl driver. We can safely remove this useless header file. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-12-09Merge tag 'at91-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds9-356/+3
Pull ARM SoC cleanup on mach-at91 from Arnd Bergmann: "On Atmel AT91, the conversion to device tree is now considered complete, and all machines that were not already converted in 3.18 are assumed to be unused and dropped by the maintainer. All remaining board files that were written in C are dropped, and the ancient at91x40 sub-platform (based on an MMU-less ARM7) is removed altogether. Cleaning up the last pieces was great fun, so I took the time to do some of the coding myself and removed several hundred code lines that ended up unused after the board files were done. There are still a couple of AT91 specific device drivers that are not converted to DT (CF, USB-OTG) and currently not working, and the platform itself is not "multiplatform"-enabled, but both issues are going to be taken care of in the 3.20 cycle. This is split out from the other cleanups purely based on the size of the branch" * tag 'at91-cleanup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (33 commits) ARM: at91: remove unused board.h file ARM: at91: remove unneeded header files ARM: at91/clocksource: remove !DT PIT initializations ARM: at91: at91rm9200 ST initialization is now DT only ARM: at91: remove old AT91-specific drivers ARM: at91: cleanup initilisation code by removing dead code ARM: at91/Kconfig: select board files automatically ARM: at91: remove unused IRQ function declarations ARM: at91: remove legacy IRQ driver and related code ARM: at91: remove old at91-specific clock driver ARM: at91: remove clock data in at91sam9n12.c and at91sam9x5.c files ARM: at91: remove all !DT related configuration options ARM: at91/trivial: update Kconfig comment to mention SAMA5 ARM: at91: always USE_OF from now on ARM: at91/Kconfig: remove ARCH_AT91RM9200 option for drivers ARM: at91: switch configuration option to SOC_AT91RM9200 ARM: at91: remove at91rm9200 legacy board support ARM: at91: remove at91rm9200 legacy boards files ARM: at91/Kconfig: remove useless fbdev Kconfig options ARM: at91: remove at91sam9261/at91sam9g10 legacy board support ...
2014-12-02ARM: at91: remove old AT91-specific driversArnd Bergmann1-5/+0
GPIO and LED drivers were replaced by generic ones for DT boards. These drivers were remaining: delete them now. Modifications are also done on the corresponding header files. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [nicolas.ferre@atmel.com: split patch] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-11-13ARM: at91: move sdramc/ddrsdr header to include/soc/at91Alexandre Belloni4-275/+3
Move the (DDR) SDRAM controller headers to include/soc/at91 to remove the dependency on mach/ headers from the at91-reset driver. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-11-10ARM: at91: remove mach/atmel-mci.hAlexandre Belloni1-17/+0
Use the generic platform_data header file instead of mach/atmel-mci.h Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2014-11-03ARM: at91: remove no-MMU at91x40 supportNicolas Ferre5-76/+0
As there is currently no-one to take care of this old !MMU target and as its support in recent kernels is a bit rotten, remove this at91x40 support and the board file associated with it (at91eb01). There are modern ARM !MMU in Mainline now so this target is not interesting for building tests anymore. It would be better to start from these modern ARM !MMU platforms to reintroduce at91x40 support if needed. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Greg Ungerer <gerg@uclinux.org> Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2014-10-08Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds5-7/+97
Pull ARM SoC platform changes from Arnd Bergmann: "New and updated SoC support. Among the things new for this release are: - at91: Added support for the new SAMA5D4 SoC, following the earlier SAMA5D3 - bcm: Added support for BCM63XX family of DSL SoCs - hisi: Added support for HiP04 server-class SoC - meson: Initial support for the Amlogic Meson6 (aka 8726MX) platform - shmobile: added support for new r8a7794 (R-Car E2) automotive SoC Noteworthy changes to existing SoC support are: - imx: convert i.MX1 to device tree - omap: lots of power management work - omap: base support to enable moving to standard UART driver - shmobile: lots of progress for multiplatform support, still ongoing" * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (171 commits) ARM: hisi: depend on ARCH_MULTI_V7 CNS3xxx: Fix debug UART. ARM: at91: fix nommu build regression ARM: meson: add basic support for MesonX SoCs ARM: meson: debug: add debug UART for earlyprintk support irq: Export handle_fasteoi_irq ARM: mediatek: Add earlyprintk support for mt6589 ARM: hisi: Fix platmcpm compilation when ARMv6 is selected ARM: debug: fix alphanumerical order on debug uarts ARM: at91: document Atmel SMART compatibles ARM: at91: add sama5d4 support to sama5_defconfig ARM: at91: dt: add device tree file for SAMA5D4ek board ARM: at91: dt: add device tree file for SAMA5D4 SoC ARM: at91: SAMA5D4 SoC detection code and low level routines ARM: at91: introduce basic SAMA5D4 support clk: at91: add a driver for the h32mx clock ARM: pxa3xx: provide specific platform_devices for all ssp ports ARM: pxa: ssp: provide platform_device_id for PXA3xx ARM: OMAP4+: Remove static iotable mappings for SRAM ARM: OMAP4+: Move SRAM data to DT ...
2014-09-26ARM: at91: fix nommu build regressionArnd Bergmann1-1/+5
The newly introduced support for SAMA5D4 added access to the 'AT91_ALT_BASE_SYS' register area, but failed to define the symbols in the case when CONFIG_MMU is disabled. We really should not hardwire addresses like this any more, but as a small fixup, this patch just adds the missing definitions for the nommu case, which gets at91x40_defconfig and any configuration of sam9 and sama5 with MMU disabled back to work. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: 726d32bf79ef4 ("ARM: at91: SAMA5D4 SoC detection code and low ...")
2014-09-22ARM: at91: SAMA5D4 SoC detection code and low level routinesNicolas Ferre4-7/+51
SoC identification code, kernel uncompress and low level debugging routines update. On SAMA5D4, DBGU is at another address AT91_BASE_DBGU2 so another round of detection is needed. We also had to differentiate with SAMA5D3 SoC family and rename some variables. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2014-09-22ARM: at91: introduce basic SAMA5D4 supportNicolas Ferre2-0/+42
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2014-09-05pinctrl: at91: add drive strength configurationMarek Roszko1-0/+6
The SAMA5 and SAM9x5 series both have drive strength options for the PIOs. This patch adds the ability to set one of three hardware options for drive strengths of low, medium or high for the each pin. The actual current output of the chip based on the setting is defined in the datasheets and varies per pins separate from banks and with supply voltage. This patch adds three new dt-bindings that allow setting the strength when configuring pins. By default, no change will be made to the drive strength of a pin from its reset value. Due to the difference between the register addresses of the SAMA5 and SAM9x5 series, a new sama5d3-pinctrl id was added. Signed-off-by: Marek Roszko <mark.roszko@gmail.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2014-05-07iio: adc: at91: remove unused include from include/machAlexandre Belloni1-120/+0
That include file is now only used by the at91_adc driver, remove it from include/mach for better driver separation. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-05-07iio: adc: at91_adc: Add support for touchscreens without TSMRAlexandre Belloni1-0/+13
Old ADCs, as present on the sam9rl and the sam9g45 don't have a TSMR register and the touchscreen support should be handled differently. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Jonathan Cameron <jic23@kernel.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-05-07ARM: at91: localize GPIO headerLinus Walleij2-222/+15
This moves the <mach/gpio.h> header in the AT91 platform down into the machine directory and removes the reliance on MACH_NEED_GPIO_H from the AT91. This does not move the platform to GENERIC_GPIO but localize the remaining work to be done for this to the mach-at91 folder. Signed-off-by: Linus Walleij <linus.walleij@linaro.org> [nicolas.ferre@atmel.com: adapt to newer kernel, add rsi-ews board] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-02-18Merge tag 'dropmachtimexh-v2' of git://git.pengutronix.de/git/ukl/linux into next/cleanupOlof Johansson2-37/+2
This cleanup series gets rid of <mach/timex.h> for platforms not using ARCH_MULTIPLATFORM. (For multi-platform code it's already unused since 387798b (ARM: initial multiplatform support).) To make this work some code out of arch/arm needed to be adapted. The respective changes got acks by their maintainers to be taken via armsoc (with Andrew Morton substituting for Alessandro Zummo as rtc maintainer). Compared to the previous pull request there was another patch added that fixes a (non-critical) regression on ixp4xx. Olof Johansson asked to not squash this fix into the original commit to save him from the need to reverify the series. * tag 'dropmachtimexh-v2' of git://git.pengutronix.de/git/ukl/linux: ARM: ixp4xx: fix timer latch calculation ARM: drop <mach/timex.h> for !ARCH_MULTIPLATFORM, too ARM: rpc: stop using <mach/timex.h> ARM: ixp4xx: stop using <mach/timex.h> input: ixp4xx-beeper: don't use symbols from <mach/timex.h> ARM: at91: don't use <mach/timex.h> ARM: ep93xx: stop using mach/timex.h ARM: mmp: stop using mach/timex.h ARM: netx: stop using mach/timex.h ARM: sa1100: stop using mach/timex.h clocksource: sirf/marco+prima2: drop usage of CLOCK_TICK_RATE rtc: pxa: drop unused #define TIMER_FREQ rtc: at91sam9: include <mach/hardware.h> explicitly ARM/serial: at91: switch atmel serial to use gpiolib Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-23Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds1-1/+2
Pull ARM SoC platform changes from Olof Johansson: "New core SoC-specific changes. New platforms: * Introduction of a vendor, Hisilicon, and one of their SoCs with some random numerical product name. * Introduction of EFM32, embedded platform from Silicon Labs (ARMv7m, i.e. !MMU). * Marvell Berlin series of SoCs, which include the one in Chromecast. * MOXA platform support, ARM9-based platform used mostly in industrial products * Support for Freescale's i.MX50 SoC. Other work: * Renesas work for new platforms and drivers, and conversion over to more multiplatform-friendly device registration schemes. * SMP support for Allwinner sunxi platforms. * ... plus a bunch of other stuff across various platforms" * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (201 commits) ARM: tegra: fix tegra_powergate_sequence_power_up() inline ARM: msm_defconfig: Update for multi-platform ARM: msm: Move MSM's DT based hardware to multi-platform support ARM: msm: Only build timer.c if required ARM: msm: Only build clock.c on proc_comm based platforms ARM: ux500: Enable system suspend with WFI support ARM: ux500: turn on PRINTK_TIME in u8500_defconfig ARM: shmobile: r8a7790: Fix I2C controller names ARM: msm: Simplify ARCH_MSM_DT config ARM: msm: Add support for MSM8974 SoC ARM: sunxi: select ARM_PSCI MAINTAINERS: Update Allwinner sunXi maintainer files ARM: sunxi: Select RESET_CONTROLLER ARM: imx: improve the comment of CCM lpm SW workaround ARM: imx: improve status check of clock gate ARM: imx: add necessary interface for pfd ARM: imx_v6_v7_defconfig: Select CONFIG_REGULATOR_PFUZE100 ARM: imx_v6_v7_defconfig: Select MX35 and MX50 device tree support ARM: imx: Add cpu frequency scaling support ARM i.MX35: Add devicetree support. ...
2013-12-20ARM: drop <mach/timex.h> for !ARCH_MULTIPLATFORM, tooUwe Kleine-König1-37/+0
While <mach/timex.h> isn't used for multi-platform builds since long it still is for "normal" builds. As the previous patches fix all sites to not make use of this per-platform file, it can go now for good also for platforms that are not (yet) converted to multi-platform. While at it there are no users of CLOCK_TICK_RATE any more, so also drop the dummy #define. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2013-12-20ARM: at91: don't use <mach/timex.h>Uwe Kleine-König1-0/+2
The platform specific <mach/timex.h> will be removed in a later patch. So move its only still used symbol to a different header specific for the only machine still using it. Also add a few explicit includes of <mach/hardware.h> that are implicitly available through <mach/timex.h>. Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
2013-12-10ARM: at91: sama5d3: add support for sama5d36 chipJosh Wu1-1/+2
The SAMA5D36 chip is the superset product of SAMA5D3x family. For detail information please refer to: http://www.atmel.com/Microsite/sama5d3/default.aspx Signed-off-by: Josh Wu <josh.wu@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Kevin Hilman <khilman@linaro.org>
2013-12-02ARM: at91: move at91_pmc.h to include/linux/clk/at91_pmc.hBoris BREZILLON1-190/+0
This patch moves at91_pmc.h header from machine specific directory (arch/arm/mach-at91/include/mach/at91_pmc.h) to clk include directory (include/linux/clk/at91_pmc.h). We need this to avoid reference to machine specific headers in clk drivers. Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com> Acked-by: Felipe Balbi <balbi@ti.com> Acked-by: Mike Turquette <mturquette@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-11-15Merge tag 'at91-fixes-non-critical' of git://github.com/at91linux/linux-at91 into fixesOlof Johansson3-0/+15
From Nicolas Ferre, fixes for early boot hangs on at91: Fixes for RTT & RTC interrupts that can fire early during boot process and kill the system. * tag 'at91-fixes-non-critical' of git://github.com/at91linux/linux-at91: ARM: at91: fix hanged boot due to early rtt-interrupt ARM: at91: fix hanged boot due to early rtc-interrupt
2013-11-15ARM: at91: fix hanged boot due to early rtc-interruptJohan Hovold3-0/+15
Make sure the RTC-interrupts are masked at boot by adding a new helper function to be used at SOC-init. This fixes hanged boot on all AT91 SOCs with an RTC (but RM9200), for example, after a reset during an RTC-update or if an RTC-alarm goes off after shutdown (e.g. when using RTC wakeup). The RTC and RTT-peripherals are powered by backup power (VDDBU) (on all AT91 SOCs but RM9200) and are not reset on wake-up, user, watchdog or software reset. This means that their interrupts may be enabled during early boot if, for example, they where not disabled during a previous shutdown (e.g. due to a buggy driver or a non-clean shutdown such as a user reset). Furthermore, an RTC or RTT-alarm may also be active. The RTC and RTT-interrupts use the shared system-interrupt line, which is also used by the PIT, and if an interrupt occurs before a handler (e.g. RTC-driver) has been installed this leads to the system interrupt being disabled and prevents the system from booting. Note that when boot hangs due to an early RTC or RTT-interrupt, the only way to get the system to start again is to remove the backup power (e.g. battery) or to disable the interrupt manually from the bootloader. In particular, a user reset is not sufficient. Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: stable@vger.kernel.org # 3.11.x
2013-10-17iio: at91: introduce touch screen support in iio adc driverJosh Wu1-0/+34
AT91 ADC hardware integrate touch screen support. So this patch add touch screen support for at91 adc iio driver. To enable touch screen support in adc, you need to add the dt parameters: 1. which type of touch are used? (4 or 5 wires), sample period time. 2. correct pressure detect threshold value. In the meantime, since touch screen will use a interal period trigger of adc, so it is conflict to other hardware triggers. Driver will disable the hardware trigger support if touch screen is enabled. This driver has been tested in AT91SAM9X5-EK and SAMA5D3x-EK. Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> CC: devicetree@vger.kernel.org Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-09-09Merge tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-socLinus Torvalds3-0/+22
Pull ARM SoC late changes from Kevin Hilman: "These are changes that arrived a little late before the merge window, or had dependencies on previous branches. Highlights: - ux500: misc. cleanup, fixup I2C devices - exynos: DT updates for RTC; PM updates - at91: DT updates for NAND; new platforms added to generic defconfig - sunxi: DT updates: cubieboard2, pinctrl driver, gated clocks - highbank: LPAE fixes, select necessary ARM errata - omap: PM fixes and improvements; OMAP5 mailbox support - omap: basic support for new DRA7xx SoCs" * tag 'late-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (60 commits) ARM: dts: vexpress: Add CCI node to TC2 device-tree ARM: EXYNOS: Skip C1 cpuidle state for exynos5440 ARM: EXYNOS: always enable PM domains support for EXYNOS4X12 ARM: highbank: clean-up some unused includes ARM: sun7i: Enable the A20 clocks in the DTSI ARM: sun6i: Enable clock support in the DTSI ARM: sun5i: dt: Use the A10s gates in the DTSI ARM: at91: at91_dt_defconfig: enable rm9200 support ARM: dts: add ADC device tree node for exynos5420/5250 ARM: dts: Add RTC DT node to Exynos5420 SoC ARM: dts: Update the "status" property of RTC DT node for Exynos5250 SoC ARM: dts: Fix the RTC DT node name for Exynos5250 irqchip: mmp: avoid to include irqs head file ARM: mmp: avoid to include head file in mach-mmp irqchip: mmp: support irqchip irqchip: move mmp irq driver ARM: OMAP: AM33xx: clock: Add RNG clock data ARM: OMAP: TI81XX: add always-on powerdomain for TI81XX ARM: OMAP4: clock: Lock PLLs in the right sequence ARM: OMAP: AM33XX: hwmod: Add hwmod data for debugSS ...
2013-08-29iio: at91: Use different prescal, startup mask in MR for different IPJosh Wu1-2/+5
For at91 boards, there are different IPs for adc. Different IPs has different STARTUP & PRESCAL mask in ADC_MR. Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-29iio: at91: introduce the multiple compatible string for different IPs.Josh Wu1-0/+9
As use the multiple compatible string, we can remove hardware register in dt. CC: devicetree@vger.kernel.org Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Jonathan Cameron <jic23@kernel.org>
2013-08-22ARM: at91: sam9n12: enable kernel uncompress info outputBo Shen1-0/+1
The sam9n12 use the same array usart as sam9x5, add it which will enable output kernel uncompress info: ---8>--- Uncompressing Linux... done, booting the kernel. ---<8--- Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-08-22ARM: at91: sama5: enable kernel uncompress info outputBo Shen1-0/+12
Enable kernel uncompress info output, which will show as following: ---8>--- Uncompressing Linux... done, booting the kernel. ---<8--- Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-08-22ARM: at91: include sama5d3.h into hardware.hBo Shen1-0/+1
Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-08-22ARM: at91: sama5d3: add definition for usart base addressBo Shen1-0/+8
Signed-off-by: Bo Shen <voice.shen@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-06-26ARM: at91/PMC: fix at91sam9n12 USB FS initNicolas Ferre1-0/+3
at91sam9n12 has Full-speed only USB. So we should add it to the list in at91_pllb_usbfs_clock_init() function. Moreover, at91sam9n12 has an unusual PMC in the sense that it has a PLLB but also has a USB clock register. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Tested-by: Bo Shen <voice.shen@atmel.com>
2013-05-24ARM: at91/sama5: fix incorrect PMC pcr div definitionJosh Wu1-3/+3
Signed-off-by: Josh Wu <josh.wu@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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