Commit Graph

476 Commits

Author SHA1 Message Date
Paul Mackerras
7e392f8c29 Merge branch 'linux-2.6' 2008-09-10 11:36:13 +10:00
Linus Torvalds
811da237ba Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  powerpc: Update defconfigs for most non-embedded platforms
  powerpc: Export CMO_PageSize
  powerpc/ps3: Fix ioremap of spu shadow regs
  powerpc/ps3: Rework htab code to remove ioremap
  powerpc/ps3: Update ps3_defconfig
  powerpc/cell/oprofile: Avoid double vfree of profile buffer
  powerpc: Update defconfigs for FSL PPC boards
  powerpc: Add cuImage.mpc866ads to the bootwrapper as a cuboot-8xx target
  cpm2: Fix race condition in CPM2 GPIO library.
  powerpc: fix memory leaks in QE library
  powerpc/85xx: TQM8548: DTS file fixes and cleanup
  powerpc: Fix whitespace merge in mpc8641 hpcn device tree
2008-08-26 10:07:27 -07:00
Adrian Bunk
7a8fc9b248 removed unused #include <linux/version.h>'s
This patch lets the files using linux/version.h match the files that
#include it.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-08-23 12:14:12 -07:00
Laurent Pinchart
639d64456e cpm2: Fix race condition in CPM2 GPIO library.
The CPM2 GPIO library code uses the non thread-safe clrbits32/setbits32
macros. This patch protects them with a spinlock.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-08-21 00:15:54 -05:00
Timur Tabi
61a4e9e91d powerpc: fix memory leaks in QE library
Fix two memory leaks in the Freescale QE library: add a missing kfree() in
ucc_fast_init() and ucc_slow_init() if the ioremap() fails, and update
ucc_fast_free() and ucc_slow_free() to call iounmap() if necessary.

Based on a patch from Tony Breeds <tony@bakeyournoodle.com>.

Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-08-20 23:58:12 -05:00
Michael Ellerman
25235f712b powerpc: Convert the MPIC MSI code to use msi_bitmap
This affects the U3 MSI code as well as the PASEMI MSI code.  We keep
some of the MPIC routines as helpers, and also the U3 best-guess
reservation logic.  The rest is replaced by the generic code.

And a few printk format changes due to hwirq type change.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-20 16:34:58 +10:00
Michael Ellerman
7e7ab36775 powerpc: Convert the FSL MSI code to use msi_bitmap
This is 90% straight forward, although we have to change a few
printk format strings as well because of the change in type of hwirq.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-20 16:34:58 +10:00
Michael Ellerman
7e302869e0 powerpc: Split-out common MSI bitmap logic into msi_bitmap.c
There are now two almost identical implementations of an MSI bitmap
allocator, one in mpic_msi.c and the other in fsl_msi.c.

Merge them together and put the result in msi_bitmap.c.  Some of the
MPIC bits will remain to provide a nicer interface for the MPIC users.

In the process we fix two buglets.  The first is that the allocation
routines, now msi_bitmap_alloc_hwirqs(), returned an unsigned result,
even though they use -1 to indicate allocation failure.  Although all
the callers were checking correctly, it is much better for the routine
to just return an int.  At least until someone wants > ~2 billion MSIs.

The second buglet is that the device tree reservation logic only
allowed power-of-two reservations.  AFAICT that didn't effect any
existing code but it's nicer if we can reserve arbitrary irqs from MSI
use.

We also add some selftests, which exposed the two buglets and now test
for them, as well as some basic sanity tests.  The tests are only built
when CONFIG_DEBUG_KERNEL=y.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-20 16:34:57 +10:00
Michael Ellerman
611cd90c91 powerpc: fsl_msi doesn't need it's own of_node
The FSL MSI code keeps a pointer to the of_node from the device
it represents.  However it also has an irq_host, which contains
a pointer to the of_node, so use that one instead.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-20 16:34:57 +10:00
Kumar Gala
9c4cb82515 powerpc: Remove use of CONFIG_PPC_MERGE
Now that arch/ppc is gone and CONFIG_PPC_MERGE is always set, remove
the dead code associated with !CONFIG_PPC_MERGE from arch/powerpc
and include/asm-powerpc.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-08-04 13:18:17 +10:00
Laurent Pinchart
dddb8d3111 cpm2: Rework baud rate generators configuration to support external clocks.
The CPM2 BRG setup functions cpm_setbrg and cpm2_fastbrg don't support
external clocks. This patch adds a new exported __cpm2_setbrg function
that takes the clock rate and clock source as extra parameters, and moves
cpm_setbrg and cpm2_fastbrg to include/asm-powerpc/cpm2.h where they
become inline wrappers around __cpm2_setbrg.

Signed-off-by: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-28 08:47:45 -05:00
Anton Vorontsov
e517881e42 powerpc: rtc_cmos_setup: assign interrupts only if there is i8259 PIC
i8259 PIC is disabled on MPC8610HPCD boards, thus currently rtc-cmos
driver fails to probe.

To fix the issue, we lookup the device tree for "chrp,iic" and
"pnpPNP,000" compatible devices, and if not found we do not assign RTC
IRQ and assuming that i8259 was disabled.

Though this patch fixes RTC on some boards (and surely should not break
any other), the whole approach is still broken. We can't easily fix this
though, because old device trees do not specify i8259 interrupts for the
cmos rtc node.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-28 08:47:38 -05:00
Jochen Friedrich
dc2380ec85 powerpc: implement GPIO LIB API on CPM1 Freescale SoC.
This patch implement GPIO LIB support for the CPM1 GPIOs.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-28 07:42:09 -05:00
Laurent Pinchart
e193325e3e cpm2: Implement GPIO LIB API on CPM2 Freescale SoC.
This patch implement GPIO LIB support for the CPM2 GPIOs. The code can
also be used for CPM1 GPIO port E, as both cores are compatible at the
register level.

Based on earlier work by Laurent Pinchart.

Signed-off-by: Jochen Friedrich <jochen@scram.de>
Cc: Laurent Pinchart <laurentp@cse-semaphore.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-28 07:40:48 -05:00
Linus Torvalds
5047887caf Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (34 commits)
  powerpc: Wireup new syscalls
  Move update_mmu_cache() declaration from tlbflush.h to pgtable.h
  powerpc/pseries: Remove kmalloc call in handling writes to lparcfg
  powerpc/pseries: Update arch vector to indicate support for CMO
  ibmvfc: Add support for collaborative memory overcommit
  ibmvscsi: driver enablement for CMO
  ibmveth: enable driver for CMO
  ibmveth: Automatically enable larger rx buffer pools for larger mtu
  powerpc/pseries: Verify CMO memory entitlement updates with virtual I/O
  powerpc/pseries: vio bus support for CMO
  powerpc/pseries: iommu enablement for CMO
  powerpc/pseries: Add CMO paging statistics
  powerpc/pseries: Add collaborative memory manager
  powerpc/pseries: Utilities to set firmware page state
  powerpc/pseries: Enable CMO feature during platform setup
  powerpc/pseries: Split retrieval of processor entitlement data into a helper routine
  powerpc/pseries: Add memory entitlement capabilities to /proc/ppc64/lparcfg
  powerpc/pseries: Split processor entitlement retrieval and gathering to helper routines
  powerpc/pseries: Remove extraneous error reporting for hcall failures in lparcfg
  powerpc: Fix compile error with binutils 2.15
  ...

Fixed up conflict in arch/powerpc/platforms/52xx/Kconfig manually.
2008-07-25 11:08:17 -07:00
Michael Buesch
7444a72eff gpiolib: allow user-selection
This patch adds functionality to the gpio-lib subsystem to make it
possible to enable the gpio-lib code even if the architecture code didn't
request to get it built in.

The archtitecture code does still need to implement the gpiolib accessor
functions in its asm/gpio.h file.  This patch adds the implementations for
x86 and PPC.

With these changes it is possible to run generic GPIO expansion cards on
every architecture that implements the trivial wrapper functions.  Support
for more architectures can easily be added.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: David Brownell <david-b@pacbell.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Samuel Ortiz <sameo@openedhand.com>
Cc: Kumar Gala <galak@gate.crashing.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-07-25 10:53:30 -07:00
Robert Jennings
6490c4903d powerpc/pseries: iommu enablement for CMO
To support Cooperative Memory Overcommitment (CMO), we need to check
for failure from some of the tce hcalls.

These changes for the pseries platform affect the powerpc architecture;
patches for the other affected platforms are included in this patch.

pSeries platform IOMMU code changes:
 * platform TCE functions must handle H_NOT_ENOUGH_RESOURCES errors and
   return an error.

Architecture IOMMU code changes:
 * Calls to ppc_md.tce_build need to check return values and return
   DMA_MAPPING_ERROR for transient errors.

Architecture changes:
 * struct machdep_calls for tce_build*_pSeriesLP functions need to change
   to indicate failure.
 * all other platforms will need updates to iommu functions to match the new
   calling semantics; they will return 0 on success.  The other platforms
   default configs have been built, but no further testing was performed.

Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com>
Acked-by: Olof Johansson <olof@lixom.net>
Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-25 15:44:43 +10:00
Mark Nelson
4f3dd8a062 powerpc/dma: Use the struct dma_attrs in iommu code
Update iommu_alloc() to take the struct dma_attrs and pass them on to
tce_build(). This change propagates down to the tce_build functions of
all the platforms.

Signed-off-by: Mark Nelson <markn@au1.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-22 10:39:32 +10:00
Maxim Shchetynin
8204cba7fa powerpc/axonram: Enable partitioning of the Axons DDR2 DIMMs
DDR2 memory DIMMs on the Axon could be accessed only as one partition
when using file system drivers which are using the direct_access() method.
This patch enables for such file system drivers to access Axon's DDR2 memory
even if it is splitted in several partitions.

Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-22 10:39:31 +10:00
Maxim Shchetynin
9a23409b69 powerpc/axonram: Use only one block device major number
Axonram module registers one block device for each DDR2 DIMM found
on a system. This means that each DDR2 DIMM becomes its own block device
major number. This patch lets axonram module to register the only one
block device for all DDR2 DIMMs which also spares kernel resources.

Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2008-07-22 10:39:31 +10:00
Scott Wood
d87eb12785 gianfar: Add magic packet and suspend/resume support.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-16 17:57:47 -05:00
Andy Fleming
7e1cc9c55a powerpc: Fix a bunch of sparse warnings in the qe_lib
Mostly having to do with not marking things __iomem.  And some failure
to use appropriate accessors to read MMIO regs.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-16 17:57:45 -05:00
Andy Fleming
4cd7e1cbd4 powerpc: Add support for multiple gfar mdio interfaces
The old code assumed there was only one, but the 8572 actually has 3.

Also, our usual id, 0xe0024520, gets resolved to -1 somewhere, and this was
preventing the multiple buses from having different ids.  So we only keep
the low 20 bits, which have the interesting info, anyway.

Signed-off-by: Andy Fleming <afleming@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-16 17:57:44 -05:00
Anton Vorontsov
69ad7e73de powerpc/fsl_soc: gianfar: don't probe disabled devices
Freescale ships MPC8315E-RDB boards in two variants:

1. With TSEC1 ethernet support and USB UTMI PHY;
2. Without TSEC1 support, but with USB ULPI PHY in addition.

For the second case U-Boot will add status = "disabled"; property
into the TSEC1 node, so Linux should not try to probe it.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-16 17:57:38 -05:00
John Rigby
76fe1ffce9 powerpc: Move mpc83xx_add_bridge to fsl_pci.c
This allows other platforms with the same pci block like MPC5121 to use it.

Signed-off-by: John Rigby <jrigby@freescale.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-16 17:57:35 -05:00
Scott Wood
d49747bdfb powerpc/mpc83xx: Power Management support
Basic PM support for 83xx.  Standby is implemented as sleep.
Suspend-to-RAM is implemented as "deep sleep" (with the processor
turned off) on 831x.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-16 17:57:30 -05:00
Benjamin Herrenschmidt
84c3d4aaec Merge commit 'origin/master'
Manual merge of:

	arch/powerpc/Kconfig
	arch/powerpc/kernel/stacktrace.c
	arch/powerpc/mm/slice.c
	arch/ppc/kernel/smp.c
2008-07-16 11:07:59 +10:00
Benjamin Herrenschmidt
5b0504c0d7 Merge commit 'gcl/gcl-next' 2008-07-15 11:55:27 +10:00
Kumar Gala
2f3804edf9 powerpc/85xx: Add support for MPC8536DS
Add support for the MPC8536 process and MPC8536DS reference board.  The
MPC8536 is an e500v2 based SoC which eTSEC, USB, SATA, PCI, and PCIe.

The USB and SATA IP blocks are similiar to those on the PQ2 Pro SoCs and
thus use the same drivers.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-14 07:55:37 -05:00
Nye Liu
5e82eb3339 powerpc/CPM: Minor cosmetic changes to udbg_putc
udbg_putc is a *function pointer* that is initialized during
udbg_init_cpm. It might not be initialized properly when called from
udbg_putc_cpm(), so (recursively) call udbg_putc_cpm() directly.

Signed-off-by: Nye Liu <nyet@mrv.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-14 07:55:35 -05:00
Grant Likely
08b6c06de5 powerpc/mpc5200: fix compile warnings in bestcomm driver
Fix for the following compiler warnings:

  CC      arch/powerpc/sysdev/bestcomm/bestcomm.o
  arch/powerpc/sysdev/bestcomm/bestcomm.c: In function 'mpc52xx_bcom_probe':
  arch/powerpc/sysdev/bestcomm/bestcomm.c:446:
      warning: format '%08lx' expects type 'long unsigned int',
      but argument 2 has type 'phys_addr_t'
  CC      arch/powerpc/sysdev/bestcomm/sram.o
  arch/powerpc/sysdev/bestcomm/sram.c: In function 'bcom_sram_init':
  arch/powerpc/sysdev/bestcomm/sram.c:89:
      warning: format '%08lx' expects type 'long unsigned int',
      but argument 3 has type 'phys_addr_t'

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-07-12 12:10:53 -06:00
Grant Likely
7ba6d6dc8d powerpc/mpc5200: Add PSC helpers for bestcomm engine
Simplify the interface for setting up bestcomm DMA to PSCs by adding
some helper functions.  The helper function sets the correct values
for the initator and ipr values in PSC DMA tasks based on the PSC
number.

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-07-12 12:10:53 -06:00
Jon Smirl
0d1cde2358 powerpc/i2c: Convert i2c-mpc into an of_platform driver
Convert i2c-mpc to an of_platform driver. Utilize the code in
drivers/of-i2c.c to make i2c modules dynamically loadable by the
device tree.

Signed-off-by: Jon Smirl <jonsmirl@gmail.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2008-07-12 12:10:23 -06:00
Paul Mackerras
441dbb500b Merge branch 'next' of master.kernel.org:/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx 2008-06-30 09:57:05 +10:00
Jens Axboe
b7d7a2404f powerpc: convert to generic helpers for IPI function calls
This converts ppc to use the new helpers for smp_call_function() and
friends, and adds support for smp_call_function_single().

ppc loses the timeout functionality of smp_call_function_mask() with
this change, as the generic code does not provide that.

Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2008-06-26 11:22:13 +02:00
Anton Vorontsov
d14b3dd619 powerpc/QE: use arch_initcall to probe QUICC Engine GPIOs
It was discussed that global arch_initcall() is preferred way to probe
QE GPIOs, so let's use it.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-26 01:49:09 -05:00
Josh Boyer
5ce4b59653 powerpc/4xx: Workaround for PPC440EPx/GRx PCI_28 Errata
The 440EPx/GRx chips don't support PCI MRM commands.  Drivers determine this
by looking for a zero value in the PCI cache line size register.  However,
some drivers write to this register upon initialization.  This can cause
MRMs to be used on these chips, which may cause deadlocks on PLB4.

The workaround implemented here introduces a new indirect_type flag, called
PPC_INDIRECT_TYPE_BROKEN_MRM.  This is set in the pci_controller structure in
the pci fixup function for 4xx PCI bridges by determining if the bridge is
compatible with 440EPx/GRx.  The flag is checked in the indirect_write_config
function, and forces any writes to the PCI_CACHE_LINE_SIZE register to be
zero, which will disable MRMs for these chips.

A similar workaround has been tested by AMCC on various PCI cards, such as
the Silicon Image ATA card and Intel E1000 GIGE card.  Hangs were seen with
the Silicon Image card, and MRMs were seen on the bus with a PCI analyzer.
With the workaround in place, the card functioned properly and only Memory
Reads were seen on the bus with the analyzer.

Acked-by: Stefan Roese <sr@denx.de>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-06-17 19:01:38 -04:00
Anton Vorontsov
5848f16947 powerpc/QE: qe_reset should be __init
This patch fixes following section mismatch:

WARNING: arch/powerpc/sysdev/built-in.o(.text+0x11d8): Section mismatch in
reference from the function qe_reset() to the function
.init.text:cpm_muram_init()

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-11 13:46:24 -05:00
Stefan Roese
995ada8d5e powerpc/4xx: PCIe driver now detects if a port is disabled via the dev-tree
This patch add a check to the PPC4xx PCIe driver to detect if the port
is disabled via the device-tree. This is needed for the AMCC Canyonlands
board which has an option to either select 2 PCIe ports or 1 PCIe port
and one SATA port. The SATA port and the 1st PCIe port pins are multiplexed
so we can't start both drivers.

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
2008-06-11 08:06:51 -04:00
Anton Vorontsov
5093bb965a powerpc/QE: switch to the cpm_muram implementation
This is very trivial patch. We're transitioning to the cpm_muram_*
calls. That's it.

Less trivial changes:
- BD_SC_* defines were defined in the cpm.h and qe.h, so to avoid redefines
  we remove BD_SC from the qe.h and use cpm.h along with cpm_muram_*
  prototypes;
- qe_muram_dump was unused and thus removed;
- added some code to the cpm_common.c to support legacy QE bindings
  (data-only node name).
- For convenience, define qe_* calls to cpm_*. So drivers need not to be
  changed.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-10 11:11:21 -05:00
Anton Vorontsov
32def337aa powerpc/QE: implement support for the GPIO LIB API
This is needed to access QE GPIOs via Linux GPIO API.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-10 11:11:10 -05:00
Anton Vorontsov
9572653ee0 powerpc/QE: prepare QE PIO code for GPIO LIB support
- split and export __par_io_config_pin() out of par_io_config_pin(), so we
  could use the prefixed version with GPIO LIB API;
- rename struct port_regs to qe_pio_regs, and place it into qe.h;
- rename #define NUM_OF_PINS to QE_PIO_PINS, and place it into qe.h.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-10 10:39:18 -05:00
Anton Vorontsov
5e41486c40 powerpc/QE: add support for QE USB clocks routing
This patch adds a function to the qe_lib to setup QE USB clocks routing.
To setup clocks safely, cmxgcr register needs locking, so I just reused
ucc_lock since it was used only to protect cmxgcr.

The idea behind placing clocks routing functions into the qe_lib is that
later we'll hopefully switch to the generic Linux Clock API, thus, for
example, FHCI driver may be used for QE and CPM chips without nasty #ifdefs.

This patch also fixes QE_USB_RESTART_TX command definition in the qe.h.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-By: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-10 10:39:13 -05:00
Anton Vorontsov
83ff9dcf37 powerpc/sysdev: implement FSL GTM support
GTM stands for General-purpose Timers Module and able to generate
timer{1,2,3,4} interrupts. These timers are used by the drivers that
need time precise interrupts (like for USB transactions scheduling for
the Freescale USB Host controller as found in some QE and CPM chips),
or these timers could be used as wakeup events from the CPU deep-sleep
mode.

Things unimplemented:
1. Cascaded (32 bit) timers (1-2, 3-4).
   This is straightforward to implement when needed, two timers should
   be marked as "requested" and configured as appropriate.
2. Super-cascaded (64 bit) timers (1-2-3-4).
   This is also straightforward to implement when needed, all timers
   should be marked as "requested" and configured as appropriate.

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-06-10 10:38:50 -05:00
Michael Ellerman
19fc65b525 powerpc: Fix irq_alloc_host() reference counting and callers
When I changed irq_alloc_host() to take an of_node
(52964f87c6: "Add an optional
device_node pointer to the irq_host"), I botched the reference
counting semantics.

Stephen pointed out that it's irq_alloc_host()'s business if
it needs to take an additional reference to the device_node,
the caller shouldn't need to care.

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-09 13:51:16 +10:00
Michael Ellerman
2272a55f16 powerpc: Rework qe_ic_init() so we can avoid freeing the irq_host
If we do the call to of_address_to_resource() first, then we don't
need to worry about freeing the irq_host (which the code doesn't do
currently anyway).

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-09 13:51:15 +10:00
Michael Ellerman
84f1c1e089 powerpc: Rework ipic_init() so we can avoid freeing the irq_host
If we do the call to of_address_to_resource() first, then we don't
need to worry about freeing the irq_host (which the code doesn't do
currently anyway).

Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-09 13:51:14 +10:00
Anton Vorontsov
5073e7ee86 powerpc/mpic: Fix ambiguous else statement
This fixes the following warning, introduced by commit
475ca391b4 (mpic: Deal with bogus NIRQ
in Feature Reporting Register):

  CC      arch/powerpc/sysdev/mpic.o
arch/powerpc/sysdev/mpic.c: In function 'mpic_alloc':
arch/powerpc/sysdev/mpic.c:1146: warning: suggest explicit braces to avoid ambiguous 'else'

Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-09 13:41:16 +10:00
Paul Mackerras
8a3e1c670e Merge branch 'merge'
Conflicts:

	arch/powerpc/sysdev/fsl_soc.c
2008-06-09 12:19:41 +10:00
Jean Delvare
f2eb432715 rtc-ds1374: rename device to just "ds1374"
Change the name of the device from "rtc-ds1374" to just "ds1374", to match
what all other RTC drivers do.  I seem to remember that this name was
chosen to avoid possible confusion with an older ds1374 driver, but that
driver was removed 3 months ago.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Alessandro Zummo <a.zummo@towertech.it>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-06-06 11:29:10 -07:00