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Signed-off-by: Paul Mackerras <paulus@samba.org>
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A few things change for consistency between ppc32 and ppc64:
idle functions return void; *_get_boot_time functions return
unsigned long (i.e. time_t) rather than filling in a struct rtc_time
(since that's useful to the callers and easier for pmac to
generate); *_get_rtc_time and *_set_rtc_time functions take
a struct rtc_time; irq_canonicalize is gone; nvram_sync returns
void.
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This is a bunch of mostly small fixes that are needed to get
ARCH=powerpc to compile for 64-bit. This adds setup_64.c from
arch/ppc64/kernel/setup.c and locks.c from arch/ppc64/lib/locks.c.
Signed-off-by: Paul Mackerras <paulus@samba.org>
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Complete moving arch/ppc64/kernel/mpic.h,
include/asm-ppc/reg.h, include/asm-ppc64/kdebug.h
and include/asm-ppc64/kprobes.h
Add arch/powerpc/platforms/Makefile and use it from
arch/powerpc/Makefile
Introduce OLDARCH temporarily so we can point back to
the originating architecture
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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make udbg_init_uart set the ppc_md udbg methods.
Signed-off-by: Milton Miller <miltonm@bga.com>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This patch fixes up iSeries, pSeries, pmac and maple to set the correct idle
function for each platform.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Currently reset and powerdown are not implemented on the Maple board,
and attempting to do so will (incorrectly return). This implements
the proper communication with the service processor, allowing correct
reset and powerdown on the Maple board, by communicating with the
service processor. If somehow it's unable to communicate with the
service processor it will loop forever instead.
Note that powerdown on the Maple will power down the CPUs, but not the
fans or other board components due to hardware and firmware
limitations.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Frank Rowand <frowand@mvista.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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pSeries and maple have almost the same code for calibrate_decr,
and BPA would need yet another copy. Instead, I'm moving the
code to arch/ppc64/kernel/time.c.
Some of the related declarations were missing from header
files, so I'm moving those as well.
It makes sense to merge this with the pmac function of the
same name, so we end up having just one implemetation for
iSeries and one for Open Firmware based machines.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
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This patch fixes ppc64 __ioremap() so that it stops adding implicitely
_PAGE_GUARDED when the cache is not writeback, and instead, let the callers
provide the flag they want here. This allows things like framebuffers to
explicitely request a non-cacheable and non-guarded mapping which is more
efficient for that type of memory without side effects. The patch also
fixes all current callers to add _PAGE_GUARDED except btext, which is fine
without it.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Earlier cleanup efforts of the ppc64 IOMMU code have mostly been targeted
at simplifying the allocation schemes and modularising things for the
various platforms. The IOMMU init functions are still a mess. This is an
attempt to clean them up and make them somewhat easier to follow.
The new rules are:
1. iommu_init_early_<arch> is called before any PCI/VIO init is done
2. The pcibios fixup routines will call the iommu_{bus,dev}_setup functions
appropriately as devices are added.
TCE space allocation has changed somewhat:
* On LPARs, nothing is really different. ibm,dma-window properties are still
used to determine table sizes.
* On pSeries SMP-mode (non-LPAR), the full TCE space per PHB is split up
in 256MB chunks, each handed out to one child bus/slot as needed. This
makes current max 7 child buses per PHB, something we're currently below
on all machine models I'm aware of.
* Exception to the above: Pre-POWER4 machines with Python PHBs have a full
GB of DMA space allocated at the PHB level, since there are no EADS-level
tables on such systems.
* PowerMac and Maple still work like before: all buses/slots share one table.
* VIO works like before, ibm,my-dma-window is used like before.
* iSeries has not been touched much at all, besides the changed unit of
the it_size variable in struct iommu_table.
Other things changed:
* Powermac and maple PCI/IOMMU inits have been changed a bit to conform to
the new init structure
* pci_dma_direct.c has been renamed pci_direct_iommu.c to match
pci_iommu.c (see separate patch)
* Likewise, a couple of the pci direct init functions have been renamed.
Signed-off-by: Olof Johansson <olof@austin.ibm.com>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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The serialPortAddr field of the naca was only being used locally, remove
it.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This patch just moves the interrupt_controller field of the naca into a
global variable.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Now that pci_get_legacy_ide_irq() support has been merged, it's time to
enable use of it by the Maple platform code.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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This adds support for the Maple 970FX Eval Board. It adds the basic
arch support. For the Maple to be fully functional, it needs a couple
more patches to be applied for IDE and Ethernet that are currently
pending with the respective maintainers of those subsystems.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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