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2017-03-31ARM: at91: move SoC detection to its own driverAlexandre Belloni1-91/+0
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>
2016-03-29ARM: at91/soc: reference the whole sama5d2 familyLudovic Desroches1-1/+11
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>
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>
2015-03-13ARM: at91: sama5 use SoC detection infrastructureAlexandre Belloni1-0/+13
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>
2015-03-13ARM: at91: at91sam9: use SoC detection infrastructureAlexandre Belloni1-0/+28
Use the soc detection infrastructure for at91sam9 initialization. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13ARM: at91: at91rm9200 use SoC detection infrastructureAlexandre Belloni1-0/+2
Use the soc detection infrastructure for at91rm9200 initialization. Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-03-13ARM: at91: add soc detection infrastructureBoris BREZILLON1-0/+35
Add new structures and functions to handle AT91 SoC detection. [alexandre.belloni@free-electrons.com: reworked DBGU detection] Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2015-02-02ARM: at91: remove at91_boot_socAlexandre Belloni1-41/+0
at91_boot_soc and at91_init_soc structures are not used by any SoC, remove their use. Also remove all the now empty SoC files. 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>
2015-02-02ARM: at91: merge all SOC_AT91SAM9xxxAlexandre Belloni1-36/+0
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>
2014-12-02ARM: at91: cleanup initilisation code by removing dead codeArnd Bergmann1-6/+0
The AT91-specific SoC strucutre "struct at91_init_soc" was filled with specific !DT initilisation functions. Now that we got rid of the !DT board file description, remove unneeded functions. Signed-off-by: Arnd Bergmann <arnd@arndb.de> [nicolas.ferre@atmel.com: split patch] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2014-10-08Merge tag 'drivers-for-linus' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC driver updates from Arnd Bergmann: "These are changes for drivers that are intimately tied to some SoC and for some reason could not get merged through the respective subsystem maintainer tree. Most of the new code is for the Keystone Navigator driver, which is new base support that is going to be needed for their hardware accelerated network driver and other units. Most of the commits are for moving old code around from at91 and omap for things that are done in device drivers nowadays. - at91: move reset, poweroff, memory and clocksource code into drivers directories - socfpga: add edac driver (through arm-soc, as requested by Boris) - omap: move omap-intc code to drivers/irqchip - sunxi: added an RTC driver for sun6i - omap: mailbox driver related changes - keystone: support for the "Navigator" component - versatile: new reboot, led and soc drivers" * tag 'drivers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (92 commits) bus: arm-ccn: Fix spurious warning message leds: add device tree bindings for register bit LEDs soc: add driver for the ARM RealView power: reset: driver for the Versatile syscon reboot leds: add a driver for syscon-based LEDs drivers/soc: ti: fix build break with modules MAINTAINERS: Add Keystone Multicore Navigator drivers entry soc: ti: add Keystone Navigator DMA support Documentation: dt: soc: add Keystone Navigator DMA bindings soc: ti: add Keystone Navigator QMSS driver Documentation: dt: soc: add Keystone Navigator QMSS bindings rtc: sunxi: Depend on platforms sun4i/sun7i that actually have the rtc rtc: sun6i: Add sun6i RTC driver irqchip: omap-intc: remove unnecessary comments irqchip: omap-intc: correct maximum number or MIR registers irqchip: omap-intc: enable TURBO idle mode irqchip: omap-intc: enable IP protection irqchip: omap-intc: remove unnecesary of_address_to_resource() call irqchip: omap-intc: comment style cleanup irqchip: omap-intc: minor improvement to omap_irq_pending() ...
2014-09-22ARM: at91: introduce basic SAMA5D4 supportNicolas Ferre1-0/+5
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
2014-09-03ARM: at91: soc: Add init_time callbackMaxime Ripard1-0/+1
Introduce an init_time callback to the at91_init_soc structure to be able to tweak the init_time machine callback on a per-soc basis, instead of having to rely on a global one. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Boris BREZILLON <boris.brezillon@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Conflicts: arch/arm/mach-at91/setup.c
2014-08-25ARM: at91/soc: Introduce register_devices callbackMaxime Ripard1-0/+1
Some core devices should be registered by the SoC itself rather than by every board using this SoC. Introduce a register_devices callback that should be called during the init_machine in order to do that. Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-06-21ARM: at91: fix at91_extern_irq usage for non-dt boardsJean-Christophe PLAGNIOL-VILLARD1-0/+1
Since 4b68520dc0ec96153bc0d87bca5ffba508edfcf ARM: at91: add AIC5 support we allocate the at91_extern_irq. This patch makes it static and stores the non-dt extern irq in the soc structure. It is then possible to use a at91_get_extern_irq() function to get the value for outside of the irq driver. It is useful for passing its value to at91_aic_init(). Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com> [nicolas.ferre@atmel.com: rework commit message] Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-03-26ARM: at91: introduce SAMA5 supportLudovic Desroches1-0/+5
This patch introduces the SAMA5 support and a generic board file for SAMA5 devices. It also updates the PMC driver to manage clock division which is a requirement since some peripherals can't work at the bus frequency on SAMA5. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2013-03-26ARM: at91: change name template in AT91_SOC_START macroLudovic Desroches1-1/+1
New devices are no more prefixed with at91 so remove the at91 and _name concatenation. Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-10-13arm: at91: use macro to declare soc boot dataJean-Christophe PLAGNIOL-VILLARD1-1/+11
Instead of check the pointer of the init function, check the new builtin bool to known if the soc is enabled. This is needed as with the switch to the pinctrl the init will be NULL on pure DT SoC. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-04-28ARM: at91: Add machine header file for AT91SAM9N12 SoCHong Xu1-0/+5
Signed-off-by: Hong Xu <hong.xu@atmel.com> Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com> Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
2012-04-17ARN: at91: introduce SOC_AT91xxx define to allow to compile SoC core supportJean-Christophe PLAGNIOL-VILLARD1-7/+7
We can now compile all SoC core support together and DT boards. We still can not compile together the non DT board. So We keep the ARCH_AT91xxx for the non DT board and for backward defconfig compatibility. This will enable the plaform_device ressources. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2012-02-03ARM: at91: code removal of CAP9 SoCJean-Christophe PLAGNIOL-VILLARD1-5/+0
Following removal announce and addition to feature-removal-schedule.txt, here is the actual source code deletion for Atmel CAP9 family. Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2011-11-28ARM: at91: add ioremap_registers entry point to soc setupJean-Christophe PLAGNIOL-VILLARD1-0/+1
this will allow to ioremap the register of the PIT, PMC and others and make the code soc independent Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
2011-07-28at91: move register clocks to soc generic initJean-Christophe PLAGNIOL-VILLARD1-0/+1
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-07-28at91: move clock subsystem init to soc generic initJean-Christophe PLAGNIOL-VILLARD1-1/+1
Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-07-28at91: use structure to store the current socJean-Christophe PLAGNIOL-VILLARD1-10/+47
instead of reading the registers everytime the current implementation respect the following constrain: - allow 1 to n soc to be enabled - allow to have a virtual cpu type and subtype - always detect the cpu type and subtype and report it - detect if the soc support is enabled - prepare for sysfs export support - drop soc specific code via compiler when the soc not enabled (via cpu_is_xxx) Today if we read the exid we will have the same value for 9g35 and 9m11 and we will need to check the cidr too with the new implementation we just need to check the soc subtype this will also allow to have specific virtual subtype for rm9200 which the board will have to specify via at91rm9200_set_type(int) as we have no way to detect it. this implementation is inspired by the SH cpu detection support Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-07-28at91: factorize at91 interrupts init to socJean-Christophe PLAGNIOL-VILLARD1-0/+1
they are the same except the default priority Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
2011-07-28at91: introduce commom AT91_BASE_SYSJean-Christophe PLAGNIOL-VILLARD1-0/+20
On all at91 except rm9200 and x40 have the System Controller starts at address 0xffffc000 and has a size of 16KiB. On rm9200 it's start at 0xfffe4000 of 111KiB with non reserved data starting at 0xfffff000 This patch removes the individual definitions of AT91_BASE_SYS and replaces them with a common version at base 0xfffffc000 and size 16KiB and map the same memory space Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Cc: Nicolas Ferre <nicolas.ferre@atmel.com> Cc: Patrice Vilchez <patrice.vilchez@atmel.com>
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