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* Blackfin: allow CONFIG_TICKSOURCE_GPTMR0 with interrupt pipelinePhilippe Gerum2009-06-231-25/+22Star
| | | | | Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: use common test_bit() rather than __test_bit()Mike Frysinger2009-06-191-2/+2
| | | | | | | Convert to test_bit() as that is what pretty much everyone uses and allows us to migrate asm/bitops.h to the asm-generic version. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: check SIC defines rather than variant namesMike Frysinger2009-06-121-9/+8Star
| | | | | | | | Rather than having to maintain a hard coded list of Blackfin variants, use the SIC defines themselves. This fixes build problems on BF51x/BF538 under some configurations as they were missing from one of the lists. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: add support for gptimer0 as a tick sourceGraf Yang2009-06-121-17/+6Star
| | | | | | | | For systems where the core cycles are not a usable tick source (like SMP or cycles gets updated), enable gptimer0 as an alternative. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: merge Philippe's recent ipipe patchPhilippe Gerum2009-06-121-7/+0Star
| | | | | | | | | ipipe-2.6.28.9-blackfin-git95aafe6.patch Singed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Blackfin: add comment for anomaly 05000171 to init codeMichael Hennerich2009-06-121-0/+3
| | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Update adeos blackfin arch patch to 1.9-00Philippe Gerum2009-03-041-76/+50Star
| | | | | | Signed-off-by: Philippe Gerum <rpm@xenomai.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: base SIC_IWR# programming on whether the MMR existsMike Frysinger2009-02-041-7/+4Star
| | | | | | | | | base SIC_IWR# programming on whether the MMR exists rather than having to maintain another list of processors Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: merge adeos blackfin part to arch/blackfin/Yi Li2009-01-071-23/+212
| | | | | | | | | | | | | | | | | | [Mike Frysinger <vapier.adi@gmail.com>: - handle bf531/bf532/bf534/bf536 variants in ipipe.h - cleanup IPIPE logic for bfin_set_irq_handler() - cleanup ipipe asm code a bit and add missing ENDPROC() - simplify IPIPE code in trap_c - unify some of the IPIPE code and fix style - simplify DO_IRQ_L1 handling with ipipe code - revert IRQ_SW_INT# addition from ipipe merge - remove duplicate get_{c,s}clk() prototypes ] Signed-off-by: Yi Li <yi.li@analog.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Allow a gpio pin be requested both as gpio and irq.Graf Yang2009-01-071-12/+13
| | | | | | | | | | | | [Mike Frysinger <vapier.adi@gmail.com>: - use KERN_NOTICE when using gpios as both irq and non rather than KERN_ERR - embedded newlines in printk() does not fly] Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Request the gpio resource when making it as an irq pin, ↵Graf Yang2008-11-181-1/+14
| | | | | | | | avoiding override it. Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Add code to free gpio when shutdown irqGraf Yang2008-11-181-1/+5
| | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: fix bug - reboot fails on BF527Mike Frysinger2008-11-181-1/+4
| | | | | | | | add ANOMALY_05000435 to handle SIC_IWR1 workaround for rebooting Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: rename irq_flags to bfin_irq_flagsMike Frysinger2008-11-181-8/+8
| | | | | | | | | rename irq_flags to bfin_irq_flags to avoid namespace collision with common code Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: move SIC_SYSIRQ() to the one file that actually uses itMike Frysinger2008-11-181-0/+2
| | | | | | Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: SMP supporting patchset: Blackfin header files and machine ↵Graf Yang2009-01-071-4/+37
| | | | | | | | | | | | | | common code Blackfin dual core BF561 processor can support SMP like features. https://docs.blackfin.uclinux.org/doku.php?id=linux-kernel:smp-like In this patch, we provide SMP extend to Blackfin header files and machine common code Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Cleanup and unify Blackfin IRQ and GPIO IRQ handlingMichael Hennerich2008-11-181-125/+66Star
| | | | | | | | | | | | | | | - Remove SSYNC() - Use irq_to_gpio where applicable - Remove gpio_edge_triggered bitfield, check irq_desc fields instead. - Remove gpio_both_edge_triggeredb bitfield, check irq_desc fields instead. - Use BITMAP and bitops on gpio_enabled - Preferably use 32-bit - Looking at the disassembly this indeed saves quite a few instructions. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: remove useless SSYNC() in irq priority codeMike Frysinger2008-11-181-4/+0Star
| | | | | | | | | | | - remove SSYNC() left over from irq init split - do not force SSYNC() when masking/unmasking IRQs in the SIC as any order enforced by the hardware should already be enforced by software Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: fix bug - gpio_bank() macros messed up bank number caculating ↵Bryan Wu2008-11-181-3/+3
| | | | | | | | | | | | | | | | | | | | with positioning a gpio The whole story: Before BF51x merged, all the MAX_BLACKFIN_GPIOS are integral multiple of GPIO_BANKSIZE (= 16). But BF51x provides MAX_BLACKFIN_GPIOS = 40 which includes 3 banks and the 3rd bank has only 8 GPIO pins. Therefore, gpio_bank() macros is correct when you try to find a GPIO in which bank (GPIO_35 is in bank 2). But on BF51x gpio_bank(MAX_BLACKFIN_GPIOS) only gives out 2 banks instead of 3 banks for some static array initialization. This patch add a new macros gpio_bank_n() and GPIO_BANK_NUM to do bank number caculating and remain the gpio_bank() macros for positioning a gpio in which bank. Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: add support for Blackfin latest processor family BF51xBryan Wu2008-11-181-8/+12
| | | | | Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: move EXPORT_SYMBOL to the place where it is actually definedMike Frysinger2008-10-281-0/+1
| | | | | | | | | | - kernel_thread - irq_flags - checksum Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: BF538/9 Linux kernel SupportMichael Hennerich2008-11-181-6/+14
| | | | | | | | Add supporing for Blackfin BF538 and BF539 processors. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Not call generic set_irq_handler() in bfin_gpio_irq_type() ↵Graf Yang2008-10-081-4/+12
| | | | | | | | due to spinlock recursion Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: add a meaningful name for each irqchipGraf Yang2008-10-081-0/+5
| | | | | | Signed-off-by: Graf Yang <graf.yang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: add supporting for kgdbSonic Zhang2008-10-131-4/+0Star
| | | | | | Signed-off-by: Sonic Zhang <sonic.zhang@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Fix PM building on BF52x: No ROTWE on BF52x, add USBWEMichael Hennerich2008-08-281-1/+1
| | | | | | Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: dont actually need to muck with EMAC_SYSTAT for BF52x for ↵Mike Frysinger2008-08-251-1/+1
| | | | | | | | demuxing Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: clear EMAC_SYSTAT during IRQ init rather than early head.S as ↵Mike Frysinger2008-08-141-0/+5
| | | | | | | | we dont need it setup that early Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: workaround SIC_IWR1 reset bug, by keeping MDMA0/1 always ↵Michael Hennerich2008-08-131-0/+9
| | | | | | | | | | enabled in SIC_IWR1. This way we ensure that reboot succeeds. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Fix Bug - System with EMAC driver enabled - Core not idlingMichael Hennerich2008-08-061-4/+4
| | | | | | | | | | | | - Disable all bits in SIC_IWR unless we are going into a real (DPMC) power saving mode. Any Interrupt can wake the core form it's idle state. - Remove deep sleep mode as it is not going to be used anywhere: We support sleep, sleep deeper and hibernate. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Functional power management supportMichael Hennerich2008-08-051-3/+43
| | | | | | | | | Merge VR Regulator Hibernate wakeups into set_irq_wake for internal interrupts. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* Blackfin arch: Fix Bug - GPIO interrupts not disabled; edge sensitive ↵Michael Hennerich2008-07-141-0/+4
| | | | | | | | | | interrupt hang system. - Implement irq_chip.enable and irq_chip.disable Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: Remove the circular buffering mechanism for exceptionsBernd Schmidt2008-04-241-2/+0Star
| | | | | | | | | | | | | | | | Remove the circular buffering mechanism for exceptions. Instead, point RETX at a safe location from which to fetch three NOPs. This safe location is now in the fixed code area, and also used for certain anomaly workarounds, to ensure that user space can find a valid ICPLB when things are built with CONFIG_MPU. Also, save I/DCPLB_FAULT_ADDRESS when lowering to level 5, since the hardware reg is valid only at exception level. Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: Allow concurrent use of GPIO and GPIO IRQMichael Hennerich2008-04-241-39/+13Star
| | | | | | | | | | | The irq setup code no longer calls gpio request and free. This patch also changes the default gpio_free behavior on Blackfin. A freed GPIO keeps it's last state, and is not defaulted back to an input. This is also what all other architectures do. Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: __FUNCTION__ is gcc-specific, use __func__Harvey Harrison2008-04-231-1/+1
| | | | | | | | | | Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Cc: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch: Cleanup abd Simplify:Michael Hennerich2008-02-251-106/+51Star
| | | | | | | | | | | - 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 Hennerich2008-02-251-0/+3
| | | | | | | | | | | | | 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: fix bug - Move IWR Enable All to the end of init_arch_irq ↵Michael Hennerich2008-02-251-4/+10
| | | | | | | | otherwise it fails Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
* [Blackfin] arch:Fix BUG [#3876] pfbutton test for BTN3 on bf533 don't show ↵Michael Hennerich2008-02-021-9/+13
| | | | | | | | | | | complete info - Buttons on the BF533-STAMP board are not inverted - Fix spurious GPIO Interrupt caused during set irq_type for edge triggered interrupts Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* [Blackfin] arch: hook up set_irq_wake in Blackfin's irq codeMichael Hennerich2008-02-081-5/+121
| | | | | | | | | | | - Add support for irq_wake on system and gpio interrupts - Remove outdated kernel options - Add option to select default PM mode - Fix various places where SIC_IWRx was only handled partially Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
* [Blackfin] arch: Merge BF561 support into ints-priorityMichael Hennerich2008-02-081-0/+1039
Merge single core ints-priority-sc.c and dual core ints-priority-dc.c into one common code ints-priority.c Signed-off-by: Michael Hennerich <michael.hennerich@analog.com> Signed-off-by: Bryan Wu <bryan.wu@analog.com>
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