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2007-10-21Blackfin arch: cleanup and promote the general purpose timers api to a core ↵Mike Frysinger
blackfin component Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-21Blackfin arch: add functions for converting between sclks and usecsMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-21Blackfin arch: use "char bfin_board_name[]" rather than "char ↵Mike Frysinger
*bfin_board_name" per discussion on lkml as the former uses less storage Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-21Blackfin arch: Fixing Bug: balance calls to get_task_mm with corresponding ↵Bernd Schmidt
mmput calls We must balance calls to get_task_mm with corresponding mmput calls, otherwise refcounting is screwed up and mms don't get freed when their task exits. Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-21Blackfin arch: Fix up /proc/cpuinfo so it is like everyone elseRobin Getz
Fix up /proc/cpuinfo so it is like everyone else, and gets parsed by various applications properly. Still needs some tweaking on parts without full L1 sram, like 532, 531, so it doesn't print out L1 bank info that doesn't exist. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-21Blackfin arch: add new processor ADSP-BF52x arch/mach supportMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-16Consolidate PTRACE_DETACHAlexey Dobriyan
Identical handlers of PTRACE_DETACH go into ptrace_request(). Not touching compat code. Not touching archs that don't call ptrace_request. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Acked-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-10Blackfin arch: fix bug libstdc++ calling writev with an iovec containing { ↵Bernd Schmidt
NULL, 0 } fails on Blackfin Fix a problem reported in the forums - libstdc++ can call writev with an iovec containing { NULL, 0 }, which works fine on i686-linux, but fails on Blackfin. Fixed by allowing size 0 transfers to/from userspace regardless of the address. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-10Blackfin arch: Export strcpy - occasionally get module link failures otherwiseBernd Schmidt
Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-10Blackfin arch: flush/inv the correct range when using write back cache and ↵Michael Hennerich
fix bugs find by dmacopy - flush/inv the correct range - dmacopy test failed when policy is write_back - invalidate before dma http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3367 It's the cache invalidate what is causing the issue. There is no invalidate only instruction it's always: FLUSHINV So when we "invalidate" after the DMA we might (do) overwrite freshly dma'ed data by dirty Cache WB content. Fixed by moving the "invalidate" at the beginning of dma_memcpy. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-10Blackfin arch: Comply with revised Anomaly Workarounds for BF533 05000311 ↵Michael Hennerich
and BF561 05000323 Comply with revised Anomaly Workarounds for BF533 05000311 and BF561 05000323 accoring to BF533 anomaly sheet Rev. A 09/04/07 Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-09Blackfin arch: Print out debug info, as early as possibleRobin Getz
Print out debug info, as early as possible - even before the kernel initializes the interrupt vectors. Now we can print out debug messages almost anytime during the boot process. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-09Blackfin arch: Enable earlyprintk earlier - so any error after our interrupt ↵Robin Getz
tables are set up will print out Also ensure that the traps_c code doesn't cause a double fault, by sending a signal to a faulting kernel before the memory subsystem is fully initialized, by printing out the error message before sending the signal. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-09Blackfin arch: fix endless loop bug when a double fault happensRobin Getz
Today when a double fault happens (exception during an exception handling event), we go into an endless loop, with nothing comming out the UART. With this patch, we actually see that we have commited a double fault event Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-09Blackfin arch: Initial patch to add earlyprintk supportRobin Getz
This allows debugging of problems which happen eary in the kernel boot process (after bootargs are parsed, but before serial subsystem is fully initialized) Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-09Blackfin arch: modify the insX/outsX and dma_insX/dma_outsX to be compatible ↵Bryan Wu
with other archs Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-11Blackfin arch: add more common defines for output sectionsMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-09-12Blackfin arch: cleanup IO and DMA_IO API function definitions according to ↵Bryan Wu
other arches Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-09-12Blackfin arch: fix typo pointed out by David Rowe (Mhz -> MHz)Mike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-11Blackfin arch: Workaround reboot bug, issue SSYNC at the start of bfin_resetMichael Hennerich
reboot failes on BF533 http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3500 Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-11Blackfin arch: a few things still use bfin_read_PORT_FER()Michael Hennerich
- Update gpio_request to allow multiple request with the same signature (label) - Use generic GPIO API where applicable - Update generic board support form stamp board Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-27Blackfin arch: Remove cruft - CONFIG_DEBUG_SERIAL_EARLY_INIT didn't work ↵Robin Getz
that well with DEBUG_KERNEL_START Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-28Blackfin arch: Merge GPIO/Peripheral Resource Allocation back into a single fileMichael Hennerich
Signed-off-by: Michael Hennerich <michale.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-27Blackfin arch: extract gpio number from PIN functionMichael Hennerich
Singed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-11Blackfin arch: rewrite our reboot code in CMike Frysinger
rewrite our reboot code in C rather than assembly to be like other architectures and to allow board maintainers to define custom behavior Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-27Blackfin arch: vmlinux.lds.S, break up our .init into separate sectionsMike Frysinger
Break up our .init into separate section like all other ports do and so that we dont mix text and data (causes disassembly headaches as pointed out by Robin) Cc: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-27Blackfin arch: parse input sections properly when using ↵Mike Frysinger
-ffunction-sections/-fdata-sections Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-05Blackfin arch: add an exception request/free apiMike Frysinger
add an exception request/free api similar to the interrupt request/fre api so people can utilize the free software based exceptions for their own purposes Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-05Blackfin arch: allow people to select the feature that is unavailable to the ↵Mike Frysinger
kernel - allow people to select the feature that is unavailable to the kernel: NMI, JTAG, or CYCLES. - change default NMI handler to simply dump hardware trace buffer. - remove default NMI handler completely as calling into kernel code is not safe move example handler to wiki so people dont haphazardly copy and paste this stuff thinking its safe Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-05Blackfin arch: Allow ptrace access the fixed code.Jie Zhang
Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-05Blackfin arch: Add DMA API to set curr descriptor addressSonic Zhang
This API is necessary for DMA descriptor array mode. Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-05Blackfin arch: remove spurious KERN_EMERG log level in outputMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-10Blackfin arch: to do some consolidation of common code and common name spacesRobin Getz
now all BLKFIN should be BFIN, should be no functional changes. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-03Blackfin arch: Add option to priorize DMA over CoreMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-10Blackfin arch: add set_dma_curr_addr DMA API to support sound driver ↵Roy Huang
recording function Signed-off-by: Roy Huang <roy.huang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-25Blackfin arch: Add ability to expend the hardware trace bufferRobin Getz
Add ability to expend the hardware trace buffer via a configurable software buffer - so you can have lots of history when a crash occurs. The interesting way we do printk in the traps.c confusese the checking script Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-03Blackfin arch: Some cosmetics based on LKML feedback from Joe PerchesMichael Hennerich
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-24Blackfin arch: add missing gpio error handling to make sure we roll back ↵Michael Hennerich
requests in case one fails Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-25Blackfin arch: revise anomaly handling by basing things on the compiler not ↵Mike Frysinger
the kconfig defines revise anomaly handling by basing things on the compiler not the kconfig defines, so the header is stable and usable outside of the kernel. This also allows us to move some code from preprocessing to compiling (gcc culls dead code) which should help with code quality (readability, catch minor bugs, etc...). Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-04Blackfin arch: fix PORT_J BUG for BF537/6 EMAC driver reported by Kalle ↵Michael Hennerich
Pokki <kalle.pokki@iki.fi> Cc: Kalle Pokki <kalle.pokki@iki.fi> Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-10-04Blackfin arch: gpio pinmux and resource allocation API required by BF537 on ↵Michael Hennerich
chip ethernet mac driver Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-08-11Blackfin arch: after removing fs.h from mm.h, fix the broken on Blackfin archBryan Wu
Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-25Blackfin arch: Initialize the exception vectors early in the boot processBernd Schmidt
Initialize the exception vectors early in the boot process, so that CPLB faults can be handled when memory protection is enabled. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-24Blackfin arch: fix a compiling warning about dma-mappingBryan Wu
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-25Blackfin arch: fix bug which unaligns the init thread's stack and causes the ↵Bernd Schmidt
current macro to fail. switch to using proper defines this time (THREAD_SIZE and PAGE_SIZE) instead of just PAGE_SIZE everywhere Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-25Blackfin arch: fix KGDB bug, dont forget last parameter.Sonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-24Blackfin arch: use bfin_read_SWRST() now that BF561 provides itMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-12Blackfin arch: use PAGE_SIZE when doing aligns rather than hardcoded valuesMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-12Blackfin arch: fix bug set dma_address properly in dma_map_sgSonic Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-12Blackfin arch: scrub dead codeMike Frysinger
we converted to using a system call for userspace spinlocks rather than a dedicated exception long ago Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
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