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2022-07-20ARM: at91: setup outer cache .write_sec() callback if neededClément Léger1-1/+15
When running under OP-TEE, the L2 cache is configured by OP-TEE and the sam platform code does not allow any modification yet. Setup a dummy .write_sec() callback to avoid triggering exceptions when Linux tries to modify the L2 cache configuration. Signed-off-by: Clément Léger <clement.leger@bootlin.com> [claudiu.beznea: keep .init_early populated only for SAMA5D2, remove sam_secure_init() from sama5d2_init() as it is also called in sama5_secure_cache_init()] Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Link: https://lore.kernel.org/r/20220606145701.185552-3-clement.leger@bootlin.com
2022-05-12ARM: at91: add code to handle secure callsClément Léger1-0/+2
Since OP-TEE now has a more complete support for sama5d2, add necessary code to perform SMC calls. The detection of OP-TEE is based on a specific device-tree node path (/firmware/optee) such has done by some other SoC. A check is added to avoid doing SMC calls without having OP-TEE. Signed-off-by: Clément Léger <clement.leger@bootlin.com> Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
2019-05-21treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 4Thomas Gleixner1-2/+1
Based on 1 normalized pattern(s): licensed under gplv2 or later extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 118 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Jilayne Lovejoy <opensource@jilayne.com> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190519154040.961286471@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-05-15ARM: at91: pm: Add sama5d2 backup modeAlexandre Belloni1-1/+18
The sama5d2 has a mode were it is possible to cut power to the SoC while keeping the RAM in self refresh. Resuming from that mode needs support in the firmware/bootloader. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Wenyou Yang <wenyou.yang@atmel.com>
2017-03-31ARM: at91: move SoC detection to its own driverAlexandre Belloni1-51/+1
To simplify machine init and as the soc_device struct is not used as the parent for on-chip devices anymore, move SoC detection to its own driver. Change in dmesg: - before: DMA: preallocated 256 KiB pool for atomic coherent allocations AT91: Detected SoC family: sama5d2 AT91: Detected SoC: sama5d27, revision 0 No ATAGs? clocksource: tcb_clksrc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 184217874325 ns at_xdmac f0010000.dma-controller: 16 channels, mapped at 0xe085b000 SCSI subsystem initialized - after: DMA: preallocated 256 KiB pool for atomic coherent allocations No ATAGs? clocksource: tcb_clksrc: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 184217874325 ns at_xdmac f0010000.dma-controller: 16 channels, mapped at 0xe0859000 AT91: Detected SoC family: sama5d2 AT91: Detected SoC: sama5d27, revision 0 SCSI subsystem initialized Suggested-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2016-06-23arm: use of_platform_default_populate() to populateKefeng Wang1-1/+1
Use helper of_platform_default_populate() in linux/of_platform when possible, instead of calling of_platform_populate() with the default match table. Acked-by: Viresh Kumar <viresh.kumar@linaro.org> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Krzysztof Halasa <khalasa@piap.pl> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Shawn Guo <shawnguo@kernel.org> Cc: Russell King <linux@arm.linux.org.uk> Cc: Roland Stigge <stigge@antcom.de> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Ray Jui <rjui@broadcom.com> Cc: Viresh Kumar <vireshk@kernel.org> Cc: Stephen Warren <swarren@wwwdotorg.org> Cc: Rob Herring <robh@kernel.org> Cc: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Kefeng Wang <wangkefeng.wang@huawei.com> Signed-off-by: Rob Herring <robh@kernel.org>
2016-03-29ARM: at91/soc: reference the whole sama5d2 familyLudovic Desroches1-1/+19
Add EXID of all SoCs of the SAMA5D2 family. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2016-02-17ARM: at91: pm: move idle functions to pm.cAlexandre Belloni1-1/+1
Avoid using code from clk/at91 for PM. This also has the bonus effect of setting arm_pm_idle for sama5 platforms. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
2015-09-01Merge tag 'armsoc-soc' of ↵Linus Torvalds1-0/+3
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC platform updates from Olof Johansson: "New or improved SoC support: - add support for Atmel's SAMA5D2 SoC - add support for Freescale i.MX6UL - improved support for TI's DM814x platform - misc fixes and improvements for RockChip platforms - Marvell MVEBU suspend/resume support A few driver changes that ideally would belong in the drivers branch are also here (acked by appropriate maintainers): - power key input driver for Freescale platforms (svns) - RTC driver updates for Freescale platforms (svns/mxc) - clk fixes for TI DM814/816X + a bunch of other changes for various platforms" * tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (83 commits) ARM: rockchip: pm: Fix PTR_ERR() argument ARM: imx: mach-imx6ul: Fix allmodconfig build clk: ti: fix for definition movement ARM: uniphier: drop v7_invalidate_l1 call at secondary entry memory: kill off set_irq_flags usage rtc: snvs: select option REGMAP_MMIO ARM: brcmstb: select ARCH_DMA_ADDR_T_64BIT for LPAE ARM: BCM: Enable ARM erratum 798181 for BRCMSTB ARM: OMAP2+: Fix power domain operations regression caused by 81xx ARM: rockchip: enable PMU_GPIOINT_WAKEUP_EN when entering shallow suspend ARM: rockchip: set correct stabilization thresholds in suspend ARM: rockchip: rename osc_switch_to_32k variable ARM: imx6ul: add fec MAC refrence clock and phy fixup init ARM: imx6ul: add fec bits to GPR syscon definition rtc: mxc: add support of device tree dt-binding: document the binding for mxc rtc rtc: mxc: use a second rtc clock ARM: davinci: cp_intc: use IRQCHIP_SKIP_SET_WAKE instead of irq_set_wake callback soc: mediatek: Fix SCPSYS compilation ARM: at91/soc: add basic support for new sama5d2 SoC ...
2015-08-05ARM: at91/soc: add basic support for new sama5d2 SoCNicolas Ferre1-0/+3
Add Kconfig entries, header file changes and addition to the documentation. The early debug infrastructure is also added for easy development. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-07-28ARM: appropriate __init annotation for const dataNicolas Pitre1-2/+2
Init data marked const should be annotated with __initconst for correctness and not __initdata. In some cases the array gathering references to that data has to be marked const as well. This fixes LTO builds that otherwise fail with section mismatch errors. Signed-off-by: Nicolas Pitre <nico@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
2015-03-19ARM: at91: remove hardware.hAlexandre Belloni1-2/+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>
2015-03-13ARM: at91: sama5d4: remove useless map_ioAlexandre Belloni1-33/+0
All the peripheral remapped at io_map are taken care of by their respective drivers. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13ARM: at91: sama5 use SoC detection infrastructureAlexandre Belloni1-14/+34
Use the soc detection infrastructure for sama5 initialization. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-12ARM: at91: remove ksz8081 phy fixup registration for sama5d4ek boardBoris Brezillon1-20/+0
Commit 2b0ba96cea60 ("net: phy: micrel: disable NAND-tree for KSZ8021, KSZ8031, KSZ8051, KSZ8081") automated the NAND-tree mode deactivation process, thus making this phy fixup useless. Remove it along with the associated headers inclusion. Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> [nicolas.ferre@atmel.com: remove selection of PHYLIB in at91 Kconfig] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-02-02ARM: at91/trivial: unify functions and machine namesNicolas Ferre1-3/+3
Remove the string "(Device Tree)" after the machine name because all AT91 machines use the DT nowadays. Also change some function names to unify following the convention: - at91sam9xxx aren't named sam9, 9xxx but with the full name - sama5 are the ones that don't have the at91 prefix anymore. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-02-02ARM: at91: remove at91_dt_initialize and machine init_early()Alexandre Belloni1-2/+0
Move the ramc initialization to pm.c as it is the only user left. This allows us to get rid of at91_dt_initialize() that was the only one called by the init_early() function pointer of struct machine_desc. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> [nicolas.ferre@atmel.com: adapt patch to newer series] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-02-02ARM: at91: change board files into SoC filesNicolas Ferre1-0/+113
As board files are now DT only and can address all aspects of the SoC family, we can rename them so that the mach-at91 directory looks cleaner. Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
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