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2016-09-09ARM: dts: split RealView EB 11MPCore variantsLinus Walleij
There used to be two versions of the RealView EB 11MPCore: - arm-realview-eb-11mp.dts: the most common variant supported by QEMU with the revision C core tile - arm-realview-eb-revb.dts: for the variant with the elder revision B core tile. As it turns out that there are also a few variants of the baseboard, unrelated to the coretile, and that these can of course be mounted on top of each other in all permutations, we create: - arm-realview-eb-11mp.dts: the most common variant supported by QEMU with the pre-revision D baseboard and the revision C core tile. - arm-realview-eb-11mp-bbrevd.dts: the revision D baseboard with the common revision C core tile. - arm-realview-eb-11mp-ctrevb.dts: the pre-revision D baseboard with the revision B core tile. - arm-realview-eb-11mp-bbrevd-ctrevb.dts: the revision D baseboard with the revision B core time. Or as a table: | Core tile: C | Core tile: B -----------+----------------------------+----------------------------------- Baseboard: | | pre-D |arm-realvie-eb-11mp | arm-realview-eb-11mp-ctrevb -----------+----------------------------+----------------------------------- Baseboard: | | D |arm-realview-eb-11mp-bbrevd | arm-realview-eb-11mp-bbrevd-ctrevb -----------+----------------------------+----------------------------------- Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2016-04-04ARM: dts: realview: support all the RealView EB board variantsLinus Walleij
The ARM RealView Evaluation Baseboards are basically these: - The original ARMv5 EB board with an ARM926EJ-S, ARM1136 or ARM1176 core tile here described in arm-realview-eb.dts no matter which of these core tiles is being used. This can be emulated by QEMU "realview-eb" machine, which by default will have the ARM926EJ-S core tile. - The same board with one of three MPCore Core tiles: ARM11MPCore, not to be confused with the similar ARM PB11MPCore ARM11MPCore test system. This exist in two revisions: - Revision A modeled in arm-realview-eb-11mp.dts - Revision B modeled arm-realview-eb-11mp-revb.dts Revision B can be emulated by the QEMU "realview-eb-mpcore" machine, but to match the hardware also the argument -smp cpus=4 must be passed so that it has four CPU cores, like the hardware. There is also evidently from the code in the kernel a Cortex-A9 core tile for the EB, and this is modeled in arm-realview-eb-a9mp.dts based on the kernel boardfile. I have not found a user guide for this EB core tile on the ARM website and it seems uncommon. It is however included for completeness. Cc: Pawel Moll <pawel.moll@arm.com> Cc: Peter Maydell <peter.maydell@linaro.org> Cc: Marc Zyngier <marc.zyngier@arm.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>