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* [Blackfin] arch: relocate MAX_SWITCH_{D,I}_CPLBS from the header to the file ↵Mike Frysinger2008-04-22
| | | | | | | | | | | | | | | | | | | where it actually gets used. relocate MAX_SWITCH_{D,I}_CPLBS from the header to the file where it actually gets used. this way when we change CONFIG_MEM_SIZE in our kconfig, we only rebuild one or two files rather than a whole bunch that implicitly include cplb.h. this will also remove the ability to clear the swapcount on the fly, but i really dont think that functionality is important. ultimate goal is for CONFIG_MEM_SIZE to go away and calculate this value on the fly based on what u-boot programmed for us. Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: MEM_ADD_WIDTH only gets used when reprogramming clocks, so ↵Mike Frysinger2008-04-22
| | | | | | | | dont bother exposing it in the menu normally Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: update reboot code to match latest info (really just copy ↵Mike Frysinger2008-04-22
| | | | | | | | from u-boot) Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix bug - Make the MPU code aware of the async banks and ↵Bernd Schmidt2008-04-22
| | | | | | | | | | | the uncached DMA area. Bug: CONFIG_MPU doesn't seem to handle access to ASYNC/IO Memory well http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3912 Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix bug - when using trace buffer with CONFIG_MPU enabled.Bernd Schmidt2008-04-22
| | | | | | | | | | | | | | | | | There were a couple of problems with the way the trace buffer state is saved/restored in assembly. The DEBUG_HWTRACE_SAVE/RESTORE macros save a value to the stack, which is not immediately obvious; the CPLB exception code needed changes to load the correct value of the stack pointer. The other problem is that the SAVE/RESTORE macros weren't pushing and popping the value downwards on the stack, but rather moving it _upwards_, which is of course completely broken. We also need to make sure there's a matching DEBUG_HWTRACE_RESTORE in the error case of the CPLB handler. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix up - CONFIG_BLKFIN_WT was renamed CONFIG_BFIN_WT while ↵Bernd Schmidt2008-04-22
| | | | | | | | the MPU code was out-of-tree. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix bug - grab locks when not atomicRobin Getz2008-03-25
| | | | | | | | | grab locks when not atomic - this fixes the issues sometimes seen when using magic sysrq. Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix bug - when we crash, current is not validRobin Getz2008-03-25
| | | | | | | | | | Sometimes when we crash, current is not valid, (has been written over), so the existing code causes a invalid read during exception context - which is a unrecoverable double fault. This fixes this. Signed-off-by: Robin Getz <rgetz@blackfin.uclinux.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: add i2c board info struct and move to new-style i2c interfaceBryan Wu2008-03-25
| | | | | Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix up gpio code style -- no functional changesMike Frysinger2008-03-25
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: dump the stack before printing out an error otherwise the ↵Mike Frysinger2008-03-25
| | | | | | | | stack dump is useless as it shows us tracing through printk Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: conditionally enable flash resources since it requests the ↵Mike Frysinger2008-03-25
| | | | | | | | async memory bank Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: add code to initialize globals declared in linux/bootmem.h: ↵Yi Li2008-03-25
| | | | | | | | max_pfn, max_low_pfn, min_low_pfn. Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: remove NOTES from linker scriptBernd Schmidt2008-03-25
| | | | | | | | | | | | | | | | | | | | | | | | Since r3658 | vapier | 2007-09-12 16:26:11 +0200 (Wed, 12 Sep 2007) | 1 line add more common defines for output sections we've had a new line, NOTES, in our linker script, which causes upstream binutils to complain about "missing phdr". Currently the only other arch that uses NOTES is i386, and the patch which added it also added PHDRS { text PT_LOAD FLAGS(5); /* R_E */ data PT_LOAD FLAGS(7); /* RWE */ note PT_NOTE FLAGS(0); /* ___ */ } and a few other modifications to use ":text" and ":data" to the linker script. It seems that we don't need NOTES at all, so just remove it. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: add twi resources to CM_BF537 board as reported by Servaes ↵Mike Frysinger2008-03-25
| | | | | | | Joordens Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: declare CHECKFLAGS to make sparse output more readableMike Frysinger2008-03-06
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: add missing __user marking to ss_sp member of signalstack ↵Mike Frysinger2008-03-06
| | | | | | | | and a few userspace system functions Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: turn generic time on by defaultMike Frysinger2008-02-28
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: add board bluetechnix kernel defconfigs to kernelMike Frysinger2008-02-28
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: initial generic time and clock sourcesVitja Makarov2008-02-28
| | | | | | | | | This patch enables Hight-Res Timers and tickless kernel Signed-off-by: Vitja Makarov <vitja.makarov@gmail.com> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [BLACKFIN] minor irq handler cleanupsJeff Garzik2008-04-20
| | | | | | - use standard irq_handler_t to define irq handler function arguments Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
* Generic semaphore implementationMatthew Wilcox2008-04-17
| | | | | | | | | | | Semaphores are no longer performance-critical, so a generic C implementation is better for maintainability, debuggability and extensibility. Thanks to Peter Zijlstra for fixing the lockdep warning. Thanks to Harvey Harrison for pointing out that the unlikely() was unnecessary. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Ingo Molnar <mingo@elte.hu>
* [Blackfin] arch: fix atomic and32/xor32 comments and ENDPROC markingsMike Frysinger2008-03-03
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix bug - allow SDH driver to be used as moduleMichael Hennerich2008-03-03
| | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: to kill syscalls missing warning by adding new timerfd syscallsBryan Wu2008-03-06
| | | | | Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: kill section mismatch warningsBryan Wu2008-02-28
| | | | | Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: handle the most common L1 shrinkage case (L1 does not exist ↵Mike Frysinger2008-02-28
| | | | | | | | for a part) so that any parts labeled for L1 instead get placed into external memory sections Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: make sure we have proper description/copyright/license linesMike Frysinger2008-02-25
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: Fix CONFIG_PM support for BF561Michael Hennerich2008-02-25
| | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: Remove DPMC char driver optionMichael Hennerich2008-02-25
| | | | | | | | Remove redundant/obsolete/dead code from DPMC driver Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: Cleanup abd Simplify:Michael Hennerich2008-02-25
| | | | | | | | | | | - Simplify init_arch_irq - Make code more readable - Remove useless SSYNCs - Fix comments Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix bug - linux-2.6.24 (delayed) disable IRQ feature not ↵Michael Hennerich2008-02-25
| | | | | | | | | | | | | functional for handle_simple_irq Bypass delayed disable feature by implementing chip->disable and chip->enable. http://lkml.org/lkml/2008/2/19/115 Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: make sure we export the _bfin_swrst symbol as modules (like ↵Mike Frysinger2008-02-24
| | | | | | | | the watchdog) need it Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: punt the simple ad5304 spi driver now that the generic ↵Mike Frysinger2008-02-24
| | | | | | | | spidev driver lets you do it from userspace Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix bug - Move IWR Enable All to the end of init_arch_irq ↵Michael Hennerich2008-02-24
| | | | | | | | otherwise it fails Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: grab mac address from OTP on BF527-EZKITMike Frysinger2008-02-24
| | | | | | | | | The bf527-ezkit stores the mac address in OTP, so grab it from there rather than flash Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: Fix bug - Setting peripheral_map only when dma channel is ↵Sonic Zhang2008-02-24
| | | | | | | | UART2/3. Singed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: add board resources for new simple-gpio char driverMike Frysinger2008-02-22
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix bug - set right partition size in the board filesMike Frysinger2008-02-24
| | | | | | | | | | | | - set default u-boot partition size to 256k - modify the offset with the size change - use mtd defines (append for offset and full for size) where applicable rather than churning constants when we dont have to Signed-off-by: Grace Pan <grace.pan@analog.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: Update default configSonic Zhang2008-02-22
| | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: add fixed code to the memory map outputMike Frysinger2008-02-22
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: add handling for the mach symlink in the `make V=1` caseMike Frysinger2008-02-22
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: respect `make -s` when creating the asm/mach symlinkMike Frysinger2008-02-22
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: fix bug add missing header fileMike Frysinger2008-02-22
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* d_path: Make d_path() use a struct pathJan Blunck2008-02-15
| | | | | | | | | | | | | | | | d_path() is used on a <dentry,vfsmount> pair. Lets use a struct path to reflect this. [akpm@linux-foundation.org: fix build in mm/memory.c] Signed-off-by: Jan Blunck <jblunck@suse.de> Acked-by: Bryan Wu <bryan.wu@analog.com> Acked-by: Christoph Hellwig <hch@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Neil Brown <neilb@suse.de> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* xtime_lock vs update_process_timesPeter Zijlstra2008-02-13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit d3d74453c34f8fd87674a8cf5b8a327c68f22e99 ("hrtimer: fixup the HRTIMER_CB_IRQSAFE_NO_SOFTIRQ fallback") broke several archs, and since only Russell bothered to merge the fix, and Greg to ACK his arch, I'm sending this for merger. I have confirmation that the Alpha bit results in a booting kernel. That leaves: blackfin, frv, sh and sparc untested. The deadlock in question was found by Russell: IRQ handle -> timer_tick() - xtime seqlock held for write -> update_process_times() -> run_local_timers() -> hrtimer_run_queues() -> hrtimer_get_softirq_time() - tries to get a read lock Now, Thomas assures me the fix is trivial, only do_timer() needs to be done under the xtime_lock, and update_process_times() can savely be removed from under it. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Greg Ungerer <gerg@uclinux.org> CC: Richard Henderson <rth@twiddle.net> CC: Bryan Wu <bryan.wu@analog.com> CC: David Howells <dhowells@redhat.com> CC: Paul Mundt <lethal@linux-sh.org> CC: William Irwin <wli@holomorphy.com> Acked-by: Ingo Molnar <mingo@elte.hu> Acked-by: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ide: introduce HAVE_IDESam Ravnborg2008-02-09
| | | | | | | | | | | | To allow flexible configuration of IDE introduce HAVE_IDE. All archs except arm, um and s390 unconditionally select it. For arm the actual configuration determine if IDE is supported. This is a step towards introducing drivers/Kconfig for arm. Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Acked-by: Russell King - ARM Linux <linux@arm.linux.org.uk> Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
* [Blackfin] arch: fix build fails only include header files when enabledMike Frysinger2008-02-08
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* [Blackfin] arch: declare default INSTALL_PATH for Blackfin portsMike Frysinger2008-02-07
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* [Blackfin] arch: Encourage users to use the spidev character driver: Provide ↵Michael Hennerich2008-02-08
| | | | | | | | | | | platform support - Enable kernel generic spidev driver for blackfin SPI ADC - spi_adc driver, document and test sample not synced Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
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