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2016-09-10xtensa: Added Cadence CSP kernel configuration for XtensaScott Telford3-0/+930
Added defconfig, device tree and Xtensa variant header files for the Cadence Configurable System Platform "xt_lnx" processor configuration. Signed-off-by: Scott Telford <stelford@cadence.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2016-03-18xtensa: add test_kc705_hifi variantMax Filippov3-0/+1048
This variant has HiFi3 coprocessor and is used in sample audio-enabled configuration. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2016-03-18xtensa: add Three Core HiFi-2 MX Variant.Piet Delaney3-0/+705
This variant has coherent cache, is equipped with interrupt distributor and is capable of running SMP linux. Signed-off-by: Piet Delaney <piet.delaney@gmail.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2015-11-02xtensa: add de212 core variantMax Filippov3-0/+900
Diamond core 212 is a generic purpose core without full MMU used for sample noMMU configuration. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-10-21xtensa: remove s6000 variant and s6105 platformDaniel Glöckner12-2092/+0
The Stretch s6000 family support has been merged into mainline 5 years ago. There appear to be no users of this code since nobody complained that there is a merge error preventing compilation. Apart from the s6105 IP camera reference design there are no s6000 devices known to ever have run Linux and as the chips are out of production there probably never will be. The successor s7000 no longer uses an Xtensa core for the OS. Let's remove the code until someone is found who actually needs it. Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
2014-02-21xtensa: fsf: drop nonexistent GPIO32 supportMax Filippov1-7/+2
The toolchain for xtensa FSF core never supported GPIO32, drop it on the linux side too. Reported-by: Fengguang Wu <fengguang.wu@intel.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: Baruch Siach <baruch@tkos.co.il>
2014-01-14xtensa: remove NO_IRQ definitionsMax Filippov1-1/+0
These definitions (-1) were correct when used as a hardware IRQ number, but are incorrect as a mapped IRQ number. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-07-08xtensa: consolidate ccount access routinesBaruch Siach1-2/+1
Use get_ccount everywhere; remove xtensa_get_ccount. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-07-08xtensa: cleanup ccount frequency trackingBaruch Siach1-2/+1
Remove unused nsec_per_ccount, and rename ccount_per_jiffy to ccount_preq. Signed-off-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Chris Zankel <chris@zankel.net>
2013-02-24xtensa: Add config files for Diamond 233L - Rev C processor variantPete Delaney3-0/+818
The Diamond 233L processor is a pre-configured Xtensa processor tailored for Linux application. Signed-off-by: Pete Delaney <piet@tensilica.com> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-12-19xtensa: unbalanced parenthesesNicolas Kaiser1-2/+2
Signed-off-by: Nicolas Kaiser <nikai@nikai.net> Signed-off-by: Chris Zankel <chris@zankel.net>
2012-05-18xtensa: Change mail addresses of Hannes Weiner and Oskar SchirmerOskar Schirmer4-6/+6
These old mail addresses dont exist any more. This changes all occurences to the authors' current addresses. Signed-off-by: Oskar Schirmer <oskar@scara.com> Cc: Chris Zankel <chris@zankel.net> Acked-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-07-11XTENSA: static should be at beginning of declarationJesper Juhl1-1/+1
Make sure that the 'static' keywork is at the beginning of declaration for arch/xtensa/variants/s6000/include/variant/dmac.h This gets rid of warnings like warning: ‘static’ is not at beginning of declaration when building with -Wold-style-declaration (and/or -Wextra which also enables it). Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2011-03-24xtensa: Convert genirq namespaceThomas Gleixner1-7/+7
Scripted with coccinelle. Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-24xtensa: Convert s6000 gpio irq_chip to new functionsThomas Gleixner1-18/+17
Also use proper wrappers for irq_desc access. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Chris Zankel <chris@zankel.net> LKML-Reference: <20110206211137.750284615@linutronix.de>
2009-06-22xtensa: support s6000 gpio irqs and alternate function selectionDaniel Glöckner3-5/+166
Implement an irq chip to handle interrupts via gpio. The GPIO chip initialization function now takes a bitmask denoting pins that should be configured for their alternate function. changes compared to v1: - fixed bug on edge interrupt configuration - accommodated to function name change - moved definition of VARIANT_NR_IRQS to this patch - renamed __XTENSA_S6000_IRQ_H to _XTENSA_S6000_IRQ_H as requested Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-06-22xtensa: s6000 dma engine supportOskar Schirmer3-1/+561
There are four slightly different dma engines on the s6000 family. One for memory-memory transfers, the other three for memory-device. This patch implements a platform-specific kernel-API to control these engines. It is needed for the network, video, audio peripherals on s6000. Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Daniel Glockner <dg@emlix.com> Signed-off-by: Fabian Godehardt <fg@emlix.com> Cc: Daniel Glockner <dg@emlix.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-05-12xtensa: implement ccount calibration for s6000Oskar Schirmer2-0/+28
Calculate core frequency from timers at boot time instead of assuming a fixed frequency. This is useful as the true frequency is set up by the boot loader, thus variable. Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-05-12xtensa: register gpio chip before useJohannes Weiner2-2/+7
Platform initialization sets up the LED heartbeat that is controlled via GPIO. Requesting the GPIO pins fails, however, as the chip is only initialized later by a device_initcall(). Fix this up by exporting the initialization function. Let the platform set up the chip before it starts using it. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-03xtensa: only build platform or variant if they contain a MakefileChris Zankel2-2/+0
We only add the platform or variant directory to core-y if it contains a Makefile. Consequently, we can remove the Makefiles for the dc232b and fsf processor variants. Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-03xtensa: s6000 variantJohannes Weiner5-0/+416
Support for the Stretch S6000 Xtensa core variant. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-03xtensa: s6000 variant core definitionsJohannes Weiner3-0/+926
S6000 core configuration files from Tensilica. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-03xtensa: variant-specific codeJohannes Weiner2-0/+2
Allow the variant to provide real code. Add empty dummy Makefiles for the existing variants. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2008-11-06xtensa: move headers files to arch/xtensa/includeChris Zankel6-0/+1183
Move all header files for xtensa to arch/xtensa/include and platform and variant header files to the appropriate arch/xtensa/platforms/ and arch/xtensa/variants/ directories. Moving the files gets also rid of all uses of symlinks in the Makefile. This has been completed already for the majority of the architectures and xtensa is one out of six missing. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Chris Zankel <chris@zankel.net>
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