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* cpu.c, rtems/score/cpu.h, rtems/score/sh.h: Modified to
support SH4. Reviewed by Ralf Corsepius <corsepiu@faw.uni-ulm.de>
who did the original SH port.
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<corsepiu@faw.uni-ulm.de> that migrates the SH port to
multilib'ing. This patch involved moving a number of
files in the CVS repository, adding new files, and
deleting files from their previous location. Ralf
gave good instructions (not repeated here) and here
are his notes:
Note 1: In this version, I did not change the installation points of
the headers which are moved inside of the source-tree. This is a
temporary hack for not breaking compatibility with 4.5 based BSPs,
but will probably not last once having real multilibs (We would have
include file conflicts when several BSPs/CPU_MODELS share a common
installation prefix).
Note 2: I hope not to have broken too much, but I would not be
astonished if something goes wrong.
Note 3: There are more patches to come :)
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<corsepiu@faw.uni-ulm.de> to correct the constraints on the
inline assembly language macro for sh_disable_interrupt.
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Ralf Corsepius <corsepiu@faw.uni-ulm.de> that adds initial Hitachi SH-2
support to RTEMS. Ralf's comments are:
Changes:
------
1. SH-Port:
* Many files renamed.
* CONSOLE_DEVNAME and MHZ defines removed from libcpu.
* console.c moved to libbsp/sh/shared, build in libbsp/sh/<BSP>/console
applying VPATH.
* CONSOLE_DEVNAME made BSP-specific, replacement is defined in bsp.h
* MHZ define replaced with HZ (extendent resolution) in custom/*.cfg
* -DHZ=HZ used in bspstart.c, only
* Makefile variable HZ used in bsp-dependent directories only.
2. SH1-Port
* clock-driver rewritten to provide better resolution for odd CPU
frequencies. This driver is only partially tested on hardware, ie.
sightly experimental, but I don't expect severe problems with it.
* Polling SCI-driver added. This driver is experimental and completly
untested yet. Therefore it is not yet used for the console (/dev/console
is still pointing to /dev/null, cf. gensh1/bsp.h).
* minor changes to the timer driver
* SH1 specific delay()/CPU_delay() now is implemented as a function
3. SH2-Port
* Merged
* IMO, the code is still in its infancy. Therefore I have interspersed
comments (FIXME) it for items which I think John should look after.
* sci and console drivers partially rewritten and extended (John, I hope
you don't mind).
* Copyright notices are not yet adapted
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> 4) rtems-rc-19990202-0.diff /reorg-score-cpu.sh
>
> reorg-score-cpu.sh reorganizes the cpu/<cpu>/* subdirectories in a
> similar manner than previous reorg scripts did. rtems-rc-19990202-0.diff
> contains the diffs after reorg-score-cpu.sh has been run on a
> rtems-19981215 snapshot + my patches up to rtems-rc-19990131-2.diff.
>
> This patch is rather nasty and may break something. However, I've tested
> it for about 10 different target/bsp pairs and believe to have shaken
> out most bugs.
I wonder about the following .h files that were not moved:
a29k/asm.h
a29k/cpu_asm.h
i386/asm.h
i960/asm.h
m68k/asm.h
m68k/m68302.h
m68k/m68360.h
m68k/qsm.h
m68k/sim.h
mips64orion/asm.h
mips64orion/cpu_asm.h
mips64orion/mips64orion.h
no_cpu/asm.h
no_cpu/cpu_asm.h
powerpc/asm.h
powerpc/mpc860.h
sh/asm.h
sparc/asm.h
sparc/erc32.h
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