Patch from Ben Dooks
The current Simtec BAST nand area timings are a little
too slow to be obtained by a 2410 running at 266MHz,
so reduce the timings slightly to bring them into the
acceptable range.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Matt Reimer
Adds an I2S platform_device for PXA. I2S is used to interface
with sound chips on systems like iPAQ h1910/h2200/hx4700 and
Asus 716.
Signed-off-by: mreimer@vpop.net
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
changes to swiotlb.c made in commit 281dd25cdc
since this file has been moved from arch/ia64/lib/swiotlb.c to
lib/swiotlb.c
Signed-off-by: Tony Luck <tony.luck@intel.com>
I had the sense of the test for when to use the old 601-style RTC
registers inverted. pmac_calibrate_decr and via_calibrate_decr
weren't setting ppc_tb_freq, on which all the further calculations
depended. Lastly, update_gtod was losing the top 32 bits of
the new tb_to_xs value.
Signed-off-by: Paul Mackerras <paulus@samba.org>
This declares powersave_nap in system.h and makes it an int everywhere,
fixes typos for the maple platform, fixes a couple of places where
I missed removing the last two arguments from a message_pass function,
and makes ppc64 consistent with ppc32 in the type of the
pci_bridge.cfg_data field.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Previously the individual xxx_calibrate_decr functions would each
print the timebase and cpu frequency and calculate several values
such as tb_to_us and tb_to_xs. This moves those printks and
calculations into time_init just after the call to the platform's
calibrate_decr function.
Signed-off-by: Paul Mackerras <paulus@samba.org>
This way they get done in one place for all platforms, and it is
more consistent with what ppc32 does.
Signed-off-by: Paul Mackerras <paulus@samba.org>
I missed a few places where ppc code was still assuming that the
ppc_md.show_[per]cpuinfo functions returned int.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Having it here rather than in arch/ppc64/kernel/smp.c means that
we can use it on 32-bit SMP systems easily with ARCH=powerpc.
Signed-off-by: Paul Mackerras <paulus@samba.org>
This patches the ppc32 and ppc64 versions of the headers and .c files
with helper functions for manipulating the performance counting
hardware. As a side effect, it removes use of the term "perfmon" from
ppc32, thus avoiding confusion with the unrelated performance counter
interface from HP Labs also called "perfmon".
Built, but not booted, for g5, pSeries, iSeries, and 32-bit Powermac
with both ARCH=powerpc and ARCH=ppc{,64} as appropriate.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Missing half of the [PATCH] uml: Fix sysrq-r support for skas mode
We need to remove these (UPT_[DEFG]S) from the read side as well as the
write one - otherwise it simply won't build.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Acked-by: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This introduces a limit parameter to the core bootmem allocator; The new
parameter indicates that physical memory allocated by the bootmem
allocator should be within the requested limit.
We also introduce alloc_bootmem_low_pages_limit, alloc_bootmem_node_limit,
alloc_bootmem_low_pages_node_limit apis, but alloc_bootmem_low_pages_limit
is the only api used for swiotlb.
The existing alloc_bootmem_low_pages() api could instead have been
changed and made to pass right limit to the core allocator. But that
would make the patch more intrusive for 2.6.14, as other arches use
alloc_bootmem_low_pages(). We may be done that post 2.6.14 as a
cleanup.
With this, swiotlb gets memory within 4G for both x86_64 and ia64
arches.
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
Cc: Ravikiran G Thirumalai <kiran@scalex86.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The implementation of __kernel_gettimeofday() in the 32 bits vDSO has a
small bug (a typo actually) that will cause it to lose 1 bit of precision.
Not terribly bad but worth fixing.
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>
The _GLOBAL() macro is for text symbols only. Changed to using
.globl for .data symbols. This is also needed in ppc32 land
to allow FSL Book-E, 40x, and 44x to work.
Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Some minor fixes that are needed if we are building for a book-e
processor.
Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The code was incorrectly doing a division by 0 in the case where
the denominator was 0x100000000 and the divisor was 0xffffffff.
Thanks to Fred Liu of Motorola for pointing this out.
Signed-off-by: Paul Mackerras <paulus@samba.org>
We now use the merged time.c for both 32-bit and 64-bit compilation
with ARCH=powerpc, and for ARCH=ppc64, but not for ARCH=ppc32.
This removes setup_default_decr (folds its function into time_init)
and moves wakeup_decrementer into time.c. This also makes an
asm-powerpc/rtc.h.
Signed-off-by: Paul Mackerras <paulus@samba.org>
This defines CONFIG_PPC_STD_MMU for ppc64, changes an instance of
sys32_ to compat_sys_ in the ppc64 syscall table, and removes a
reference to a non-existent arch/powerpc/xmon/Makefile.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Patch from Tony Lindgren
Machine restart calls cpu_proc_fin() to clean and disable
cache, and turn off interrupts. This patch adds proper
cpu_v6_proc_fin.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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>
This makes platform code use the smp_ops variable directly instead
of ppc_md.smp_ops, removes the two unused `data' and `wait' arguments
from the *_message_pass() functions, and removes the call to the
never-implemented smp_ops->space_timers() function.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Patch from Ben Dooks
Check that the device we are looking at is really
a platform device before trying to cast it to one
to find out the platform bus number.
Thanks to RMK for pointing this out.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This allows us to get rid of one type of entry in systbl.S.
In passing we remove the duplicate compat_sys_getdents and
compat_sys_utimes for which there are generic versions.
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
This makes ppc use the syscalls.c from arch/powerpc/kernel, exports
copy_and_flush from head_32.S for use by prom_init.c (ARCH=powerpc),
and consolidates the sys_fadvise64_64 implementations for 32-bit.
Signed-off-by: Paul Mackerras <paulus@samba.org>
With ARCH=powerpc, a spurious ifdef in prom_init prevented the
seconday hold loop being correctly copied down on Maple. With this
patch, Maple boots with ARCH=powerpc
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The merge-tree version of LOADBASE actually loads the whole given
address from the toc for ppc64. The matching OFF macro adjust for
this, using an offset of 0 for ppc64, but we weren't using that in
power4_idle.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
The _GLOBAL() macro is for text symbols only. Changed to using
.globl for .data symbols.
Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
We were initializing the btext stuff from prom_init(), thus breaking
the rule that all communication between prom_init() and the rest of
the kernel has to be via the flattened device tree. This removes
the btext initialization calls from prom_init() and initializes it
instead after the device tree is unflattened. It would be nice to
do it earlier, but that needs some more infrastructure to find the
properties we need in the flattened device tree.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Andreas Schwab spotted that recent kernels broke reporting of the PowerMac
machine model in /proc/cpuinfo. This fixes 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>
This patch fixes the following BUG message of arch/m32r/smp.c for
CONFIG_DEBUG_PREEMPT:
BUG: using smp_processor_id() in preemptible
This message is displayed by an smp_processor_id() execution during
kernel's preemptible-state.
Signed-off-by: Hitoshi Yamamoto <hitoshiy@isl.melco.co.jp>
Signed-off-by: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
