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2007-06-21Blackfin arch: Clean up trace buffer handling, No major functional changes.Robin Getz
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 Schmidt
- 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 Zhang
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-21Blackfin arch: add missing implementations SIC_IWR crosses several registersMichael Hennerich
SIC_IWR crosses several registers - add missing implementations - make sure SIC_IWR is SET after boot Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-21Blackfin arch: need to rename function after moving to match new internal ↵Mike Frysinger
dma API Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-21Blackfin arch: defines and provides entry points for certain user space ↵Bernd Schmidt
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>
2007-07-02Blackfin arch: new kernel config for BF548-EZKITMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-07-12Blackfin arch: initial supporting for BF548-EZKITRoy Huang
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>
2007-07-02Blackfin arch: update board defconfig filesMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-25Blackfin arch: Fix up remaining printks with proper log levelsRobin Getz
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 ↵Jie Zhang
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>
2007-06-21Blackfin arch: match kernel startup messaage with new linker scriptRobin Getz
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 Getz
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>
2007-06-21Blackfin arch: update ANOMALY handlingRobin Getz
update lists for 533, 537, and add SSYNC workaround into assembly files. 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 Frysinger
- 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: make sure we initialize our L1 Data B section properly based ↵Mike Frysinger
on the linked kernel 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 Hennerich
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 Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin arch: add missing gpio.h header to fix compiling in some pm ↵Michael Hennerich
configurations Signed-off-by: Michael Hennerich <michael.hennerich@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 Hennerich
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>
2007-06-11Blackfin arch: fix spelling typo in outputMike Frysinger
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 ↵Aubrey Li
according to LKML review 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 Frysinger
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 ↵Mike Frysinger
once we are up and running Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin arch: unify differences between our diff head.S files -- no ↵Mike Frysinger
functional changes Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin arch: update defconfigsMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin arch: scrub old console definesMike Frysinger
since they arent respected anymore (use console=) and just confuse people Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-14Blackfin arch: implement a basic /proc/sram file for L1 allocation visibilityMike Frysinger
implement a basic /proc/sram file for L1 allocation visibility until we can rewrite the entire L1 allocator (which would include a proper mechanism) Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin arch: mark our memory init functions with __init so they get freed ↵Mike Frysinger
after init 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 ↵Robin Getz
__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>
2007-06-11Blackfin arch: spelling fixesSimon Arlott
Signed-off-by: Simon Arlott <simon@fire.lp0.eu> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-06-11Blackfin arch: DMA code minor naming convention fixAubrey Li
Signed-off-by: Aubrey Li <aubrey.li@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi>
2007-06-11Blackfin arch: remove defconfig fileMike Frysinger
Since we have board-specific defconfigs and the default is set to BF537-STAMP, we no longer need this one Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
2007-05-21Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fix: mm/slab: fix section mismatch warning mm: fix section mismatch warnings init/main: use __init_refok to fix section mismatch kbuild: introduce __init_refok/__initdata_refok to supress section mismatch warnings all-archs: consolidate .data section definition in asm-generic all-archs: consolidate .text section definition in asm-generic kbuild: add "Section mismatch" warning whitelist for powerpc kbuild: make better section mismatch reports on i386, arm and mips kbuild: make modpost section warnings clearer kconfig: search harder for curses library in check-lxdialog.sh kbuild: include limits.h in sumversion.c for PATH_MAX powerpc: Fix the MODALIAS generation in modpost for of devices
2007-05-21Blackfin arch: update pm.c according to power management API change.Bryan Wu
Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: update defconfig filesBryan Wu
Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: add board default configs to blackfin archMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: fix signal handling bugBernd Schmidt
There's a forum thread at https://blackfin.uclinux.org/gf/project/uclinux-dist/forum/?action=ForumBrowse&_forum_action=MessageReply&message_id=24741 which has a testcase involving signal handling that crashes quite readily. Inspecting the code I believe what happens is that signal handling can become confused when it is invoked on return from an interrupt, if the contents of P0 and R0 at the time of the interrupt happen to be such that P0 is larger than zero (indicating to the signal code that we're in a syscall), and R0 happens to have a value of something like -EINTR or -ERESTARTSYS. Fixed by setting orig_p0 to -1 if we're returning from an interrupt. The testcase now seems to run without problems. Signed-off-by: Bernd Schmidt <bernd.schmidt@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: cache SWRST value at bootup so other things like watchdog can ↵Mike Frysinger
non-destructively query it Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: make sure we use local labelsMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: dont clear the bit that tells coreb to start bootingMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: dma_memcpy borken for > 64KAubrey Li
Signed-off-by: Aubrey Li <aubrey.li@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: document why we have to touch the UART peripheral in our boot ↵Mike Frysinger
up code Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: issue reset via SWRST so we dont clobber the watchdog stateMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: move board specific setup out of common init code and into ↵Mike Frysinger
the board specific init code Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: dont clear status register bits in SWRST so we can actually ↵Mike Frysinger
use it Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: initial tepla-bf561 board supportMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: Fix bug using usb keyboard crashes kernelMichael Hennerich
Without conswitchp preset, we have the following situation: - During initcalls: con_init is called, and returns because of !display_desc. - At this point there is no memory allocated for vc_cons[].d A bit later vty_init calls kbd_init. - From now on events are passed to kbd_event which will then call kbd_keycode. - kbd_keycode will oops on a NULL pointer dereference on vc->vc_tty Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Bryan Wu <bryan.wu@analog.com> [ Added commit description based on email thread. - Linus ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: fix trace output for FLAT binariesMike Frysinger
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-21Blackfin arch: DMA operation cleanupMichael Hennerich
1) Disable Interrupts during DMA memcpy to avoid raise conditions. 2) Mark MDMA channel 0 as reserved, since were using it internally. 3) Add DMA based equivalents for insX and outsX. 4) Our insX and outsX only handles len <= 2^16. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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