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* iop-adma: remove the workaround for missed interrupts on iop3xxDan Williams2008-04-17
| | | | | | This workaround was covering the dependency submission bug in async_tx. Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* async_tx: replace 'int_en' with operation preparation flagsDan Williams2008-02-06
| | | | | | | | | | | Pass a full set of flags to drivers' per-operation 'prep' routines. Currently the only flag passed is DMA_PREP_INTERRUPT. The expectation is that arch-specific async_tx_find_channel() implementations can exploit this capability to find the best channel for an operation. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Shannon Nelson <shannon.nelson@intel.com> Reviewed-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
* [ARM] 4495/1: iop: combined watchdog timer driver for iop3xx and iop13xxDan Williams2007-07-20
| | | | | | | | | | | | | | | | | | | In order for this driver to be shared across the iop architectures the iop3xx and iop13xx header files are modified to present a common interface for the iop_wdt driver. Details: * iop13xx supports disabling the timer while iop3xx does not. This requires a few 'compatibility' definitions in include/asm-arm/hardware/iop3xx.h to preclude adding #ifdef CONFIG_ARCH_IOP13XX blocks to the driver code. * The heartbeat interval is derived from the internal bus clock rate, so this this patch also exports the tick rate to the iop_wdt driver. Cc: Curt Bruns <curt.e.bruns@intel.com> Cc: Peter Milne <peter.milne@d-tacq.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Wim Van Sebroeck <wim@iguana.be> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4494/1: iop13xx: fix up elf_hwcap compile breakageDan Williams2007-07-20
| | | | | | | | | | | | | | | | | | | | | | arch/arm/boot/compressed/misc.o: In function `valid_user_regs': misc.c:(.text+0x74): undefined reference to `elf_hwcap' This triggers after the various elf_hwcap cleanups in: f884b1cf578e079f01682514ae1ae64c74586602 d1cbbd6b413510c6512f4f80ffd48db1a8dd554a include/asm-arm/arch-iop13xx/uncompress.h calls cpu_relax while spinning on a register value. cpu_relax requires processor.h->ptrace.h->hwcap.h 'elf_hwcap' is defined as an extern, but since the uncompressor does not link against arch/arm/kernel/setup.c 'elf_hwcap' remains undefined. Fix is to open code the cpu_relax() call as barrier(). Cc: Lennert Buytenhek <kernel@wantstofly.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* iop13xx: surface the iop13xx adma units to the iop-adma driverDan Williams2007-07-13
| | | | | | | | | | | | | | | | | | | | Adds the platform device definitions and the architecture specific support routines (i.e. register initialization and descriptor formats) for the iop-adma driver. Changelog: * added 'descriptor pool size' to the platform data * add base support for buffer sizes larger than 16MB (hw max) * build error fix from Kirill A. Shutemov * rebase for async_tx changes * add interrupt support * do not call platform register macros in driver code * remove unnecessary ARM assembly statement * checkpatch.pl fixes * gpl v2 only correction Cc: Russell King <rmk@arm.linux.org.uk> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
* Merge branch 'fixes' into develRussell King2007-05-12
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| * [ARM] Fix iop32x/iop33x buildRussell King2007-05-11
| | | | | | | | | | | | arch/arm/plat-iop/io.c:26: error: conflicting types for '__iop3xx_ioremap' Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* | [ARM] iop13xx: msi supportDaniel Wolstenholme2007-05-11
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable devices to signal interrupts via PCI memory cycles. rev6: * fix enable/disable typo, Michael Ellerman rev5: * fix up ack, enable, and disable for iop13xx_msi_chip rev4: * move smp compile fix to separate patch * use dynamic_irq_init in create_irq() * hookup mask/unmask routines in iop13xx_msi_chip rev3: * change msi.c to use linux/smp.h instead of asm/smp.h * call dynamic_irq_cleanup at destroy_irq time rev2: * destroy_irq did not take the full 128 bits of msi_irq_in_use into account * added missing '&' for calls to test_and_set_bit and clear_bit [ebiederm@xmission.com: review comments/suggestions] [dan.j.williams@intel.com: cleanups/forward port to 2.6-git] Signed-off-by: Daniel Wolstenholme <daniel.e.wolstenholme@intel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Acked-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
*-. Merge branches 'arm-mm', 'at91', 'clkevts', 'imx', 'iop', 'misc', 'netx', ↵Russell King2007-05-06
|\ \ | | | | | | | | | 'ns9xxx', 'omap', 'pxa', 'rpc', 's3c' and 'sa1100' into devel
| | * [ARM] 4342/2: iop13xx: add resource definitions for the tpmi unitsDan Williams2007-05-03
| | | | | | | | | | | | | | | | | | | | | The tpmi units interface with the SAS controller on iop348. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] 4343/1: iop13xx: automatically detect the internal bus frequencyDan Williams2007-04-30
| | | | | | | | | | | | | | | Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| | * [ARM] 4341/1: iop13xx: fix i/o address translationDan Williams2007-04-30
| |/ | | | | | | | | | | | | | | | | | | | | | | | | PCI devices were being programmed with an incorrect base address value. This patch moves I/O space into a 16-bit addressable region and corrects the i/o offset. Much thanks to Martin Michlmayr for tracking this issue and testing debug patches. Cc: Martin Michlmayr <tbm@cyrius.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* / [ARM] mm 7: remove duplicated __ioremap() prototypesRussell King2007-05-05
|/ | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xxDan Williams2007-02-17
| | | | | | | | | | * architecture specific details are handled in asm/arch/time.h * ARCH_IOP13XX now selects PLAT_IOP * as suggested by Lennert use ifdef CONFIG_XSCALE to skip the cp_wait on XSC3 Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4186/1: iop: remove cp6_enable/disable routinesDan Williams2007-02-17
| | | | | | | This functionality is replaced by cp6_trap Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_userDan Williams2007-02-17
| | | | | | | | | | | | | | | get_irqnr_preamble allows machines to take some action before entering the get_irqnr_and_base loop. On iop we enable cp6 access. arch_ret_to_user is added to the userspace return path to allow individual architectures to take actions, like disabling coprocessor access, before the final return to userspace. Per Nicolas Pitre's note, there is no need to cp_wait on the return to user as the latency to return is sufficient. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4077/1: iop13xx: fix __io() macroDan Williams2006-12-30
| | | | | | | | | | Since iop13xx defines the PCI I/O spaces with physical resource addresses the __io macro needs to perform the physical to virtual conversion. I incorrectly assumed that this would be handled by ioremap, but drivers (like e1000) directly dereference the address returned from __io. Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 4055/1: iop13xx: fix phys_io/io_pg_offst for iq81340mc/scLennert Buytenhek2006-12-17
| | | | | | | | The phys_io/io_pg_offst machine record variables were being set to bogus values, causing problems when enabling DEBUG_LL. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
* [ARM] 3995/1: iop13xx: add iop13xx supportDan Williams2006-12-07
The iop348 processor integrates an Xscale (XSC3 512KB L2 Cache) core with a Serial Attached SCSI (SAS) controller, multi-ported DDR2 memory controller, 3 Application Direct Memory Access (DMA) controllers, a 133Mhz PCI-X interface, a x8 PCI-Express interface, and other peripherals to form a system-on-a-chip RAID subsystem engine. The iop342 processor replaces the SAS controller with a second Xscale core for dual core embedded applications. The iop341 processor is the single core version of iop342. This patch supports the two Intel customer reference platforms iq81340mc for external storage and iq81340sc for direct attach (HBA) development. The developer's manual is available here: ftp://download.intel.com/design/iio/docs/31503701.pdf Changelog: * removed virtual addresses from resource definitions * cleaned up some unnecessary #include's Signed-off-by: Dan Williams <dan.j.williams@intel.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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