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>
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>
Linus Walleij