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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>
2009-04-02xtensa: make startup code discardableDaniel Glöckner1-1/+1
Move it from .text to .init.text to get rid of it after boot and prevent illegal section references. Signed-off-by: Daniel Glöckner <dg@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: ccount clocksourceJohannes Weiner2-73/+33
Switch to GENERIC_TIME by using the ccount register as a clock source. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: remove platform rtc hooksJohannes Weiner3-41/+1
platform_get/set_rtc_time() is not implemented by any of the supported xtensa platforms. Remove the facility completely. The initial seconds for xtime come from read_persistent_clock() which returns just 0 in the generic implementation. Platforms that sport a persistent clock can implement this function. This is needed to implement the ccount as a clock source. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: use generic sched_clock()Johannes Weiner1-9/+0
Current xtensa implementation of sched_clock() is the same as the generic one. Just remove it, the weak symbol in kernel/sched_clock.c will be used instead. Signed-off-by: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: platform: s6105Johannes Weiner9-0/+712
Support for the S6105 IP Camera Reference Design Kit. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Oskar Schirmer <os@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: let platform override KERNELOFFSETJohannes Weiner1-0/+3
The linker script should not assume a fix offset in memory for the kernel, this is platform-specific, so let the platform set it. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: s6000 variantJohannes Weiner8-0/+481
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>
2009-04-02xtensa: 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>
2009-04-02xtensa: variant irq set callbacksJohannes Weiner3-0/+24
Allow the core variant code to provide irq enable/disable callbacks. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>
2009-04-02xtensa: variant-specific codeJohannes Weiner3-0/+5
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>
2009-04-02xtensa: nommu supportJohannes Weiner19-75/+169
Add support for !CONFIG_MMU setups. Signed-off-by: Johannes Weiner <jw@emlix.com> Signed-off-by: Chris Zankel <chris@zankel.net>