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The current interrupt handling code for the MSP4200 always masks an
interrupt before acknowledging it. This is not required, as that will be
handled by the level interrupt handler. This change simplifies the MSP4200
code to remove the masking in the ack routine, and makes sure that the
minimum required operation is performed for masking and acking, rather
than always both masking and acking the interrupt.
Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Trying to build MSP4200 VoIP defconfig also fails on msp_irq_slp.c with a
non-existing reference to mask_slp_irq, which is in turn mask_msp_slp_irq.
Passed that, we will also miss a comma when calling
set_irq_chip_and_handler. This patch fixes both issues.
Signed-off-by: Florian Fainelli <florian@openwrt.org>
Acked-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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They tend to get not updated when files are moved around or copied and
lack any obvious use. While at it zap some only too obvious comments and
as per Shinya's suggestion, add a copyright header to extable.c.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Acked-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Acked-by: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com>
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The RAMROOT function was a successful but non-portable attempt to append
the root filesystem to the end of the kernel image. The preferred and
portable solution is to use an initramfs instead.
Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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There have been a number of compile problems with the msp71xx configuration
ever since it was included in the linux-mips.org repository. This patch
resolves compilation problems with attempting to reset the board using
non-existent GPIO routines.
This patch has been compile-tested against the current HEAD.
Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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There have been a number of compile problems with the msp71xx configuration
ever since it was included in the linux-mips.org repository. This patch
resolves the "multiple definition of plat_timer_setup" problem, and creates
the required get_c0_compare_int function.
This patch has been compile-tested against the current HEAD.
Signed-off-by: Shane McDonald <mcdonald.shane@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32)
Signed-off-by: Yang Hongyang<yanghy@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This new gpio driver for PMC-Sierra's MSP71xx SoC allows
standard api calls for access to the general and extended
gpio's.
Signed-off-by: Patrick Glass <patrickglass@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
create mode 100755 arch/mips/pmc-sierra/msp71xx/gpio.c
create mode 100755 arch/mips/pmc-sierra/msp71xx/gpio_extended.c
create mode 100755 include/asm-mips/pmc-sierra/msp71xx/gpio.h
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This patch explicitly removes the kgdb implementation, for mips which
is intended to be followed by a patch that adds a kgdb implementation
for MIPS that makes use of the kgdb core in the kernel.
Signed-off-by: Jason Wessel <jason.wessel@windriver.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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- remove always-true test
- neaten request_irq() indentation
This change's main purpose is to prepare for the patchset in
jgarzik/misc-2.6.git#irq-remove, that explores removal of the
never-used 'irq' argument in each interrupt handler.
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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[MIPS] MSP71xx: Fix bitrot.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Also many plat_timer_setup() can be killed too.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Hard to follow who is pointing what to where and why so it's simply getting
in the way of the time code renovation.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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This has not been any serious user of this ill conceived thing since the
original invention in like '95.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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early_serial_setup was removed from serial.h, but forgot to put in
serial_8250.h
Signed-off-by: Yinghai Lu <yinghai.lu@sun.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Patch to add PCI support for the PMC-Sierra MSP71xx devices.
Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Patch to add core platform support for the PMC-Sierra MSP71xx devices.
Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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Serial driver patch for the PMC-Sierra MSP71xx devices.
There are three different fixes:
1 Fix for DesignWare APB THRE errata: In brief, this is a non-standard
16550 in that the THRE interrupt will not re-assert itself simply by
disabling and re-enabling the THRI bit in the IER, it is only re-enabled
if a character is actually sent out.
It appears that the "8250-uart-backup-timer.patch" in the "mm" tree
also fixes it so we have dropped our initial workaround. This patch now
needs to be applied on top of that "mm" patch.
2 Fix for Busy Detect on LCR write: The DesignWare APB UART has a feature
which causes a new Busy Detect interrupt to be generated if it's busy
when the LCR is written. This fix saves the value of the LCR and
rewrites it after clearing the interrupt.
3 Workaround for interrupt/data concurrency issue: The SoC needs to
ensure that writes that can cause interrupts to be cleared reach the UART
before returning from the ISR. This fix reads a non-destructive register
on the UART so the read transaction completion ensures the previously
queued write transaction has also completed.
Signed-off-by: Marc St-Jean <Marc_St-Jean@pmc-sierra.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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