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2007-10-11Blackfin arch: Workaround reboot bug, issue SSYNC at the start of bfin_resetMichael Hennerich1-0/+78
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 Hennerich1-0/+15
- 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 that well with DEBUG_KERNEL_STARTRobin Getz1-5/+0
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 Hennerich2-14/+215
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 Hennerich1-2/+4
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 Frysinger3-26/+19
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 Frysinger1-15/+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>
2007-08-27Blackfin arch: parse input sections properly when using -ffunction-sections/-fdata-sectionsMike Frysinger1-1/+3
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 Frysinger1-2/+36
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 kernelMike Frysinger1-2/+1
- 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 Zhang1-6/+18
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 Zhang1-1/+14
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 Frysinger1-2/+1
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 Getz4-19/+22
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 Hennerich1-0/+5
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 recording functionRoy Huang1-0/+10
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 Getz2-7/+55
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 Hennerich1-36/+66
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 requests in case one failsMichael Hennerich1-2/+8
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 the kconfig definesMike Frysinger3-17/+17
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 Pokki <kalle.pokki@iki.fi>Michael Hennerich1-8/+11
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 chip ethernet mac driverMichael Hennerich1-31/+241
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 Wu4-0/+5
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 Schmidt1-0/+1
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 Wu1-1/+2
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 current macro to fail.Bernd Schmidt1-6/+10
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 Zhang1-1/+1
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 Frysinger1-4/+0
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 Frysinger1-5/+7
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 Zhang1-4/+7
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 Frysinger1-3/+2
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>
2007-07-12Blackfin arch: Enable BF54x PIN/GPIO interruptsMichael Hennerich1-2/+2
Signed-off-bu: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-12Blackfin arch: cleanup warnings from checkpatch -- no functional changesMike Frysinger17-154/+142
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-21Blackfin arch: Clean up trace buffer handling, No major functional changes.Robin Getz2-13/+12
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>
2007-07-12Blackfin arch: Start untangling the CPLB handling code.Bernd Schmidt4-288/+502
- 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>
2007-06-29Blackfin arch: kgdb specific codeSonic Zhang2-0/+422
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-21Blackfin arch: defines and provides entry points for certain user space functions at fixed addressesBernd Schmidt4-1/+221
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>
2007-07-12Blackfin arch: initial supporting for BF548-EZKITRoy Huang3-207/+6
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>
2007-06-25Blackfin arch: Fix up remaining printks with proper log levelsRobin Getz1-1/+2
Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-25Blackfin arch: Add proper -mcpu option according to the cpu and silicon revision configurationJie Zhang1-4/+14
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>
2007-06-21Blackfin arch: match kernel startup messaage with new linker scriptRobin Getz1-3/+5
Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-21Blackfin arch: update printk to use KERN_EMERG and reformat crash outputRobin Getz1-55/+86
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>
2007-06-11Blackfin arch: redo our linker script a bitMike Frysinger1-111/+56
- 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>
2007-06-14Blackfin arch: fix bug can not wakeup from sleep via push buttonsMichael Hennerich1-2/+10
Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin arch: add support for Alon Bar-Lev's dynamic kernel command-lineMike Frysinger1-4/+3
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin arch: As Mike pointed out range goes form m..MAX_BLACKFIN_GPIO -1Michael Hennerich1-1/+1
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>
2007-06-14Blackfin arch: try to split up functions like this into smaller units according to LKML reviewAubrey Li1-112/+121
Signed-off-by: Aubrey Li <aubrey.li@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin arch: add proper ENDPROC()Mike Frysinger1-0/+5
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>
2007-06-11Blackfin arch: move more of our startup code to .init so it can be freed once we are up and runningMike Frysinger1-5/+5
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin arch: all symbols were offset by 4k, since we didn't have the __text label.Robin Getz1-0/+1
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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