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* Blackfin arch: Workaround reboot bug, issue SSYNC at the start of bfin_resetMichael Hennerich2007-10-10
| | | | | | | | | 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>
* Blackfin arch: a few things still use bfin_read_PORT_FER()Michael Hennerich2007-10-10
| | | | | | | | | | - 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>
* Blackfin arch: Remove cruft - CONFIG_DEBUG_SERIAL_EARLY_INIT didn't work ↵Robin Getz2007-08-27
| | | | | | | | that well with DEBUG_KERNEL_START Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: Merge GPIO/Peripheral Resource Allocation back into a single fileMichael Hennerich2007-08-28
| | | | | | Signed-off-by: Michael Hennerich <michale.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: extract gpio number from PIN functionMichael Hennerich2007-08-27
| | | | | | Singed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: rewrite our reboot code in CMike Frysinger2007-10-10
| | | | | | | | | | 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>
* Blackfin arch: vmlinux.lds.S, break up our .init into separate sectionsMike Frysinger2007-08-27
| | | | | | | | | | | 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>
* Blackfin arch: parse input sections properly when using ↵Mike Frysinger2007-08-27
| | | | | | | | -ffunction-sections/-fdata-sections Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: add an exception request/free apiMike Frysinger2007-08-05
| | | | | | | | | | 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>
* Blackfin arch: allow people to select the feature that is unavailable to the ↵Mike Frysinger2007-08-05
| | | | | | | | | | | | | 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>
* Blackfin arch: Allow ptrace access the fixed code.Jie Zhang2007-08-05
| | | | | | Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: Add DMA API to set curr descriptor addressSonic Zhang2007-08-05
| | | | | | | | 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>
* Blackfin arch: remove spurious KERN_EMERG log level in outputMike Frysinger2007-08-05
| | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: to do some consolidation of common code and common name spacesRobin Getz2007-10-10
| | | | | | | | 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>
* Blackfin arch: Add option to priorize DMA over CoreMichael Hennerich2007-08-03
| | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: add set_dma_curr_addr DMA API to support sound driver ↵Roy Huang2007-10-10
| | | | | | | | recording function Signed-off-by: Roy Huang <roy.huang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: Add ability to expend the hardware trace bufferRobin Getz2007-07-24
| | | | | | | | | | | | 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>
* Blackfin arch: Some cosmetics based on LKML feedback from Joe PerchesMichael Hennerich2007-08-03
| | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Cc: Joe Perches <joe@perches.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: add missing gpio error handling to make sure we roll back ↵Michael Hennerich2007-07-24
| | | | | | | | requests in case one fails Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: revise anomaly handling by basing things on the compiler not ↵Mike Frysinger2007-07-24
| | | | | | | | | | | | | 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>
* Blackfin arch: fix PORT_J BUG for BF537/6 EMAC driver reported by Kalle ↵Michael Hennerich2007-10-03
| | | | | | | | | 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>
* Blackfin arch: gpio pinmux and resource allocation API required by BF537 on ↵Michael Hennerich2007-10-03
| | | | | | | | chip ethernet mac driver Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: after removing fs.h from mm.h, fix the broken on Blackfin archBryan Wu2007-08-11
| | | | | | | 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>
* Blackfin arch: Initialize the exception vectors early in the boot processBernd Schmidt2007-07-25
| | | | | | | | | 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>
* Blackfin arch: fix a compiling warning about dma-mappingBryan Wu2007-07-24
| | | | | Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: fix bug which unaligns the init thread's stack and causes the ↵Bernd Schmidt2007-07-24
| | | | | | | | | | | | 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>
* Blackfin arch: fix KGDB bug, dont forget last parameter.Sonic Zhang2007-07-24
| | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: use bfin_read_SWRST() now that BF561 provides itMike Frysinger2007-07-24
| | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: use PAGE_SIZE when doing aligns rather than hardcoded valuesMike Frysinger2007-07-12
| | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: fix bug set dma_address properly in dma_map_sgSonic Zhang2007-07-12
| | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: scrub dead codeMike Frysinger2007-07-11
| | | | | | | | | 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>
* Blackfin arch: Enable BF54x PIN/GPIO interruptsMichael Hennerich2007-07-12
| | | | | | Signed-off-bu: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: cleanup warnings from checkpatch -- no functional changesMike Frysinger2007-07-12
| | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: Clean up trace buffer handling, No major functional changes.Robin Getz2007-06-21
| | | | | | | | | | Turns on trace earlier, so crashes at kernel start should print out a trace, making things easier to debug. Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: Start untangling the CPLB handling code.Bernd Schmidt2007-07-12
| | | | | | | | | | | | | - Move cache initialization to C from assembly. - Move anomaly workaround for writing [ID]MEM_CONTROL to assembly, so that we don't have to mess around with .align directives in C source. - Fix a bug where bfin_write_DMEM_CONTROL would write to IMEM_CONTROL - Break out CPLB related code from kernel/setup.c into their own file. - Don't define variables in header files, only declare them. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: kgdb specific codeSonic Zhang2007-06-29
| | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: defines and provides entry points for certain user space ↵Bernd Schmidt2007-06-20
| | | | | | | | | | | | | | | | | | functions at fixed addresses This patch defines (and provides) entry points for certain user space functions at fixed addresses. The Blackfin has no usable atomic instructions, but we can ensure that these code sequences appear atomic from a user space point of view by detecting when we're in the process of executing them during the interrupt handler return path. This allows much more efficient pthread lock implementations than the bfin_spinlock syscall we're currently using. Also provided is a small sys_rt_sigreturn stub which can be used by the signal handler setup code. The signal.c part will be committed separately. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: initial supporting for BF548-EZKITRoy Huang2007-07-12
| | | | | | | | | | | | | | | | | The ADSP-BF54x was specifically designed to meet the needs of convergent multimedia applications where system performance and cost are essential ingredients. The integration of multimedia, human interface, and connectivity peripherals combined with increased system bandwidth and on-chip memory provides customers a platform to design the most demanding applications. Since now, ADSP-BF54x will be supported in the Linux kernel and bunch of related drivers such as USB OTG, ATAPI, NAND flash controller, LCD framebuffer, sound, touch screen will be submitted later. Please enjoy the show. Signed-off-by: Roy Huang <roy.huang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: Fix up remaining printks with proper log levelsRobin Getz2007-06-25
| | | | | | Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: Add proper -mcpu option according to the cpu and silicon ↵Jie Zhang2007-06-25
| | | | | | | | | | | | | | revision configuration Add silicon revision "any" and "none". Add proper -mcpu option according to the cpu and silicon revision configuration. Need update to use latest Blackfin cross compile toolchain. Signed-off-by: Jie Zhang <jie.zhang@analog.com> Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: match kernel startup messaage with new linker scriptRobin Getz2007-06-20
| | | | | | Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: update printk to use KERN_EMERG and reformat crash outputRobin Getz2007-06-20
| | | | | | | | | | | | | | | | to look like: return address: [0x0357fcc4]; contents of: 0x0357fca0: fcbc 0357 fe20 0357 0009 0000 6a8c 0345 0x0357fcb0: 000e 0000 fcc4 0357 fd44 0357 e128 00ad 0x0357fcc0: 00a0 0000 [000e] 0000 0000 0000 0080 0000 0x0357fcd0: 0000 0000 0000 0000 00a0 0000 000e 0000 instruction in [] is the offending instruction Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: redo our linker script a bitMike Frysinger2007-06-11
| | | | | | | | | - we can start taking advantages of defines in asm-generic/vmlinux.lds.h - move our L1 relocated sections into init so it gets freed after relocation Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: fix bug can not wakeup from sleep via push buttonsMichael Hennerich2007-06-14
| | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: add support for Alon Bar-Lev's dynamic kernel command-lineMike Frysinger2007-06-11
| | | | | | Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: As Mike pointed out range goes form m..MAX_BLACKFIN_GPIO -1Michael Hennerich2007-06-11
| | | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: try to split up functions like this into smaller units ↵Aubrey Li2007-06-14
| | | | | | | | according to LKML review Signed-off-by: Aubrey Li <aubrey.li@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: add proper ENDPROC()Mike Frysinger2007-06-11
| | | | | | | | | add proper ENDPROC() to close out assembly functions so size/type is set properly in the final ELF image Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: move more of our startup code to .init so it can be freed ↵Mike Frysinger2007-06-11
| | | | | | | | once we are up and running Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* Blackfin arch: all symbols were offset by 4k, since we didn't have the ↵Robin Getz2007-06-11
| | | | | | | | | | __text label. Bug tracker: http://blackfin.uclinux.org/gf/project/uclinux-dist/tracker/?action=TrackerItemEdit&tracker_item_id=3231 Singed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
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