Date: Wed, 19 Dec 2007 18:00:50 +0000 (UTC) From: Marcel Moolenaar <marcel@FreeBSD.org> To: src-committers@FreeBSD.org, cvs-src@FreeBSD.org, cvs-all@FreeBSD.org Subject: cvs commit: src/sys/conf files.powerpc src/sys/dev/powermac_nvram powermac_nvram.c src/sys/dev/uart uart_cpu_powerpc.c src/sys/powerpc/aim ofw_machdep.c src/sys/powerpc/conf NOTES src/sys/powerpc/include _bus.h bus.h src/sys/powerpc/powermac ... Message-ID: <200712191800.lBJI0oHd092190@repoman.freebsd.org>
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marcel 2007-12-19 18:00:50 UTC
FreeBSD src repository
Modified files:
sys/conf files.powerpc
sys/dev/powermac_nvram powermac_nvram.c
sys/dev/uart uart_cpu_powerpc.c
sys/powerpc/aim ofw_machdep.c
sys/powerpc/conf NOTES
sys/powerpc/include _bus.h bus.h
sys/powerpc/powermac grackle.c macio.c uninorth.c
sys/powerpc/psim iobus.c
Added files:
sys/powerpc/powerpc bus_machdep.c
Log:
Redefine bus_space_tag_t on PowerPC from a 32-bit integral to
a pointer to struct bus_space. The structure contains function
pointers that do the actual bus space access.
The reason for this change is that previously all bus space
accesses were little endian (i.e. had an explicit byte-swap
for multi-byte accesses), because all busses on Macs are little
endian.
The upcoming support for Book E, and in particular the E500
core, requires support for big-endian busses because all
embedded peripherals are in the native byte-order.
With this change, there's no distinction between I/O port
space and memory mapped I/O. PowerPC doesn't have I/O port
space. Busses assign tags based on the byte-order only.
For that purpose, two global structures exist (bs_be_tag and
bs_le_tag), of which the address can be taken to get a valid
tag.
Obtained from: Juniper, Semihalf
Revision Changes Path
1.71 +1 -0 src/sys/conf/files.powerpc
1.2 +1 -0 src/sys/dev/powermac_nvram/powermac_nvram.c
1.4 +2 -2 src/sys/dev/uart/uart_cpu_powerpc.c
1.19 +1 -4 src/sys/powerpc/aim/ofw_machdep.c
1.11 +2 -0 src/sys/powerpc/conf/NOTES
1.2 +1 -1 src/sys/powerpc/include/_bus.h
1.20 +380 -660 src/sys/powerpc/include/bus.h
1.10 +2 -5 src/sys/powerpc/powermac/grackle.c
1.21 +1 -5 src/sys/powerpc/powermac/macio.c
1.17 +3 -5 src/sys/powerpc/powermac/uninorth.c
1.1 +788 -0 src/sys/powerpc/powerpc/bus_machdep.c (new)
1.10 +3 -6 src/sys/powerpc/psim/iobus.c
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