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2015-06-19ARC: [plat_arcfpga]->[plat_sim]Vineet Gupta1-40/+0
* Remove remanants of legacy ARC FPGA platforms (AA4, ML509...) * Only nsim simulation platform is left, rename platform accordingly * AA4 DT stuff is compatible with nsim for ARC700 so rename it too Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2015-06-19ARC: [arcfpga] RIP legacy ISS based SMP extensionVineet Gupta1-5/+0
With ISS long unsupported, no point in having extension based on it Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2014-10-13ARC: [arcfpga] Remove more dead codeVineet Gupta1-19/+1
specifically after switching to generic early arc uart, whole bunch of code is no longer needed Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2014-10-13ARC: [plat*] move code out of .init_machine into commonVineet Gupta1-12/+0
All the platforms do the same thing in init_machine callback so move it out of callback into caller of callback Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2014-10-13ARC: [arcfpga] consolidate machine description, DTVineet Gupta1-20/+7
* AA4/ML509 have same machine descriptions * Rename simulation machine description Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2014-09-27ARC: Allow SMP kernel to build/boot on UP-only infrastructureVineet Gupta1-1/+1
In light of recent SNAFU with SMP build, allow simple platform to build as SMP but run UP. * Remove the dependence on simulation SMP extension to enable quick build/test iterations of SMP kernel. * In absence of platform SMP registration, prevent the NULL smp feature name from borkign the system Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2014-08-09Merge tag 'arc-v3.17-rc1' of ↵Linus Torvalds1-3/+0
git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc Pull ARC changes from Vineet Gupta: "Mostly cleanup/refactoring in core intc, cache flush, IPI send..." * tag 'arc-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc: mm, arc: remove obsolete pagefault oom killer comment ARC: help gcc elide icache helper for !SMP ARC: move common ops for line/full cache into helpers ARC: cache boot reporting updates ARC: [intc] mask/unmask can be hidden again ARC: [plat-arcfpga] No need for init_irq hack ARC: [intc] don't mask all IRQ by default ARC: prune extra header includes from smp.c ARC: update some comments ARC: [SMP] unify cpu private IRQ requests (TIMER/IPI)
2014-07-23ARC: [plat-arcfpga] No need for init_irq hackVineet Gupta1-3/+0
With all IRQs unmasked by default on all cores, it is no longer needed to unmask them explicitly. Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2014-07-10ARC: [arcfpga] RIP early uart platform device stuffVineet Gupta1-95/+2
With ARC uart driver switching to generic earlycon, we no longer need this ugliness. You won't be missed. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2014-06-03ARC: [arcfpga] Early ARC UART to be only activated by cmdlineVineet Gupta1-9/+4
Earlier CONFIG_SERIAL_ARC_CONSOLE would unconditionally enable the legacy ARC UART based early console even if platform lacked that UART (e.g. nSIM OSCI platform). So a multi-platform image containing the 2 UART drivers won't work. Fix that by probing the driver only if "earlyprintk=ttyARC0" is present in cmdline. Reported-by: Chuck Jordan <cjordan@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2014-06-03ARC: [arcfpga] Get rid of legacy BVCI latency unit supportVineet Gupta1-55/+0
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2014-05-05ARC: [SMP] ISS SMP extension bitrotVineet Gupta1-2/+2
* Move extension specific code out of common SMP code * Don't enable it by default for SMP Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2014-03-26ARC: [arcfpga] Fix __initconst data const-correctnessMischa Jonker1-3/+3
Signed-off-by: Mischa Jonker <mjonker@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-06-22ARC: [plat-arcfpga] Fix build breakage when !CONFIG_ARC_SERIALMischa Jonker1-3/+9
This fixes the following: - CONFIG_ARC_SERIAL_BAUD is only defined when CONFIG_SERIAL_ARC is defined. Make sure that it isn't referenced otherwise. - There is no use for initializing arc_uart_info[] when CONFIG_SERIAL_ARC is not defined. [vgupta: tweaked changelog title, used IS_ENABLED() kconfig helper] Signed-off-by: Mischa Jonker <mjonker@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-05-07ARC: Add support for nSIM OSCI System C modelMischa Jonker1-0/+12
This adds support for an ARC Virtual Platform. This platform is based on the System C standard promoted by the OSCI (Open System C Initiative) and uses nSIM to simulate the ARC CPU core itself. Users can build a virtual SoC by combining System C models of peripherals and CPU cores. Signed-off-by: Mischa Jonker <mjonker@synopsys.com> Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-02-15ARC: [Review] Multi-platform image #8: platform registers SMP callbacksVineet Gupta1-0/+4
Platforms export their SMP callbacks by populating arc_smp_ops. The population itself needs to be done pretty early, from init_early callback. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de>
2013-02-15ARC: [Review] Multi-platform image #4: Isolate platform headersVineet Gupta1-1/+1
-Top level ARC makefile removes -I for platform headers -asm/irq.h no longer includes plat/irq.h -platform makefile adds -I for it's specfic platform headers -platform code to directly include it's plat/irq.h -Linker script needed plat/memmap.h for CCM info, already in .config Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2013-02-15ARC: [Review] Multi-platform image #3: switch to board callbackVineet Gupta1-8/+42
-platform API is retired and instead callbacks are used Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Arnd Bergmann <arnd@arndb.de>
2013-02-15ARC: [plat-arfpga] BVCI Latency Unit setupVineet Gupta1-0/+56
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-02-15ARC: [plat-arcfpga]: Enabling DeviceTree for Angel4 boardVineet Gupta1-51/+46
* arc-uart platform device now populated dynamically, using of_platform_populate() - applies to any other device whatsoever. * uart in turn requires incore arc-intc to be also present in DT * A irq-domain needs to be instantiated for IRQ requests by DT probed device (e.g. arc-uart) TODO: switch over to linear irq domain once all devs have been transitioned to DT Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Grant Likely <grant.likely@secretlab.ca> Cc: Arnd Bergmann <arnd@arndb.de>
2013-02-15ARC: [plat-arcfpga] Static platform device for CONFIG_SERIAL_ARCVineet Gupta1-0/+108
N.B. This is old style of hardcoding platform device specific info in code and it's instantiation thererof using platform_add_devices(). Subsequent patches replace this with DeviceTree based runtime probe. This patch has been retained just as an example of "don't-do-this" for newer kernel ports. Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Cc: Arnd Bergmann <arnd@arndb.de>
2013-02-15ARC: Boot #1: low-level, setup_arch(), /proc/cpuinfo, mem initVineet Gupta1-0/+29
Signed-off-by: Vineet Gupta <vgupta@synopsys.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
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