Commit graph

21 commits

Author SHA1 Message Date
Dan Williams
2492c84518 iop3xx: surface the iop3xx DMA and AAU units to the iop-adma driver
Adds the platform device definitions and the architecture specific support
routines (i.e. register initialization and descriptor formats) for the
iop-adma driver.

Changelog:
* add support for > 1k zero sum buffer sizes
* added dma/aau platform devices to iq80321 and iq80332 setup
* fixed the calculation in iop_desc_is_aligned
* support xor buffer sizes larger than 16MB
* fix places where software descriptors are assumed to be contiguous, only
  hardware descriptors are contiguous for up to a PAGE_SIZE buffer size
* convert to async_tx
* add interrupt support
* add platform devices for 80219 boards
* do not call platform register macros in driver code
* remove switch() statements for compatible register offsets/layouts
* change over to bitmap based capabilities
* remove unnecessary ARM assembly statement
* checkpatch.pl fixes
* gpl v2 only correction
* phys move to dma_async_tx_descriptor

Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2007-07-13 08:06:19 -07:00
Russell King
f75fd965d5 [ARM] Fix iop32x/iop33x build
arch/arm/plat-iop/io.c:26: error: conflicting types for '__iop3xx_ioremap'

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-11 17:20:06 +01:00
Russell King
6f95416ebe Merge branches 'arm-mm', 'at91', 'clkevts', 'imx', 'iop', 'misc', 'netx', 'ns9xxx', 'omap', 'pxa', 'rpc', 's3c' and 'sa1100' into devel 2007-05-06 20:57:51 +01:00
Russell King
0058ca32c3 [ARM] mm 7: remove duplicated __ioremap() prototypes
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-05 11:57:39 +01:00
Dan Williams
e90ddd813d [ARM] 4348/4: iop3xx: Give Linux control over PCI initialization
Currently the iop3xx platform support code assumes that RedBoot is the
bootloader and has already initialized the ATU.  Linux should handle this
initialization for three reasons:

1/ The memory map that RedBoot sets up is not optimal (page_to_dma and
virt_to_phys return different addresses).  The effect of this is that using
the dma mapping API for the internal bus dma units generates pci bus
addresses that are incorrect for the internal bus.

2/ Not all iop platforms use RedBoot

3/ If the ATU is already initialized it indicates that the iop is an add-in
card in another host, it does not own the PCI bus, and should not be
re-initialized.

Changelog:
* rather than change nr_controllers to zero, simply do not call
  pci_common_init

Cc: Lennert Buytenhek <kernel@wantstofly.org>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-05-03 14:02:48 +01:00
Dan Williams
3668b45d46 [ARM] 4187/1: iop: unify time implementation across iop32x, iop33x, and iop13xx
* 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>
2007-02-17 15:05:40 +00:00
Dan Williams
f80dff9da0 [ARM] 4185/2: entry: introduce get_irqnr_preamble and arch_ret_to_user
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>
2007-02-17 15:04:29 +00:00
Dan Williams
6df26700c0 [ARM] 4182/1: iop3xx: fix the ioremap implementation to not remap static ranges
Implement a custom ioremap implementation for iop3xx. This saves
establishing new mappings. It also cleans up the PCI IO resource to be a
physical address rather than a virtual address as Russell pointed out on
the original iop13xx port.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2007-02-14 15:21:21 +00:00
Lennert Buytenhek
c852ac8044 [ARM] 3832/1: iop3xx: coding style cleanup
Since the iop32x code isn't iop321-specific, and the iop33x code isn't
iop331-specfic, do a s/iop321/iop32x/ and s/iop331/iop33x/, and tidy up
the code to conform to the coding style guidelines somewhat better.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:53 +01:00
Lennert Buytenhek
475549faa1 [ARM] 3831/1: iop3xx: factor out common register defines
Factor out the register defines for a number of other peripherals
common to the iop32x and iop33x.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:52 +01:00
Lennert Buytenhek
c680b77efe [ARM] 3830/1: iop3xx: board support file cleanup
Revamp the iop3xx board support: move the support code for each iop
board type into its own file, start using platform serial and platform
physmap flash devices, switch to a per-board time tick rate, and get
rid of the ARCH_EP80219 and STEPD config options by doing the relevant
checks at run time.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:50 +01:00
Lennert Buytenhek
7412b10f79 [ARM] 3829/1: iop3xx: optimise irq entry macros
Squeeze three instructions out of the iop32x irq demuxer, and nine
out of the iop33x irq demuxer by using the hardware vector generator.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:49 +01:00
Lennert Buytenhek
72edd84a6b [ARM] 3827/1: iop3xx: add common gpio module
Implement the gpio_line_{config,get,set} API for iop3xx.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:47 +01:00
Lennert Buytenhek
610300e8f4 [ARM] 3826/1: iop3xx: remove IOP3??_IRQ_OFS irq offset
Get rid of the unused IOP3??_IRQ_OFS irq offset define, start IRQ
numbering from zero.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:46 +01:00
Lennert Buytenhek
38ce73ebd7 [ARM] 3825/1: iop3xx: use cp6 enable/disable macros
Add CP6 enable/disable sequences to the timekeeping code and the IRQ
code.  As a result, we can't depend on CP6 access being enabled when
we enter get_irqnr_and_base anymore, so switch the latter over to
using memory-mapped accesses for now.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:45 +01:00
Lennert Buytenhek
863753a81e [ARM] 3823/1: iop3xx: switch iop32x/iop33x over to shared time code
Switch the iop32x and iop33x code over to the common time implementation,
and remove the (nearly identical) iop32x and iop33x time implementations.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:43 +01:00
Lennert Buytenhek
48388b2a56 [ARM] 3822/1: iop3xx: rewrite time handling
Merge and rewrite the iop32x/iop33x time code to do lost jiffy
tracking properly, and put the result in plat-iop/time.c.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:42 +01:00
Lennert Buytenhek
7e9740b115 [ARM] 3821/1: iop3xx: switch iop32x/iop33x over to shared pci code
Switch the iop32x and iop33x code over to the common PCI implementation,
and remove the (nearly identical) iop32x and iop33x PCI implementations.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:41 +01:00
Lennert Buytenhek
e25d64f124 [ARM] 3819/1: iop3xx: factor out shared i2c code
Move the i2c bits shared between iop32x and iop33x to plat-iop/i2c.c
and include/asm-arm/hardware/iop3xx.h.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:38 +01:00
Lennert Buytenhek
7ae1f7ec52 [ARM] 3818/1: iop3xx: introduce arch/arm/plat-iop for shared iop32x/iop33x code
Introduce the arch/arm/plat-iop directory, for code shared between the
iop32x and iop33x, and move the common memory map setup bits there.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:37 +01:00
Lennert Buytenhek
3f7e5815f4 [ARM] 3817/1: iop3xx: split the iop3xx mach into iop32x and iop33x
Split the iop3xx mach type into iop32x and iop33x -- split the config
symbols, and move the code in the mach-iop3xx directory to the mach-iop32x
and mach-iop33x directories.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2006-09-25 10:25:36 +01:00