Ira,
we have a pretty old PCI device driver here that needs some basic rework
running on 2.6.27 on several MPC83xx.
It's a simple char-device with "give me some data" implemented using
read() resulting in zero-copy DMA to user mem.
There's get_user_pages() working under the hood along with
S
The mpc52xx_gpio driver currently supports 8 wakeup GPIOs and 32
simple GPIOs. Extend it to also support GPIO function of 8 simple
interrupt GPIOs controlled in the standard GPIO register module.
Signed-off-by: Anatolij Gustschin
---
arch/powerpc/platforms/52xx/mpc52xx_gpio.c | 117
FSL PCIe controller can act as agent(EP) or host(RC).
Under Agent(EP) mode they are configured via Host. So it is not required to add
with the PCI(e) sub-system.
Add and configure PCIe controller only for RC mode.
Signed-off-by: Vivek Mahajan
Signed-off-by: Prabhakar Kushwaha
---
Based upon
g
On Mon, May 23, 2011 at 11:34:26AM +0500, Muhammad Waseem wrote:
>Hello,
> I am working on PPC440EPx (Sequoia) to access its UART # 1 port for data
>transfer, while UART # 0 is connected to remote terminal access on host.
>However there is no module/driver listed for UART # 1 using 'lsmod'. The
>
Commit 0837e3242c73566fc1c0196b4ec61779c25ffc93 fixes a situation on POWER7
where events can roll back if a specualtive event doesn't actually complete.
This can raise a performance monitor exception. We need to catch this to ensure
that we reset the PMC. In all cases the PMC will be less than 25
Currently Maple setup code creates cpc925_edac device only on
Motorola ATCA-6101 blade. Make setup code check bridge revision
and enable EDAC on all U3H bridges.
Verified on Momentum MapleD (ppc970fx kit) board.
Signed-off-by: Dmitry Eremin-Solenikov
Acked-by: Segher Boessenkool
One tiny th
If second CPU is not enabled, CPC925 EDAC driver will spill out
warnings
about errors on second Processor Interface. Support masking that out,
by detecting at runtime which CPUs are present in device tree.
Signed-off-by: Dmitry Eremin-Solenikov
Cc: Harry Ciao
Cc: Doug Thompson
Signed-off-by:
I'm withdrawing this patch for the moment, due to two areas that need further
research;
1) An adjacent FDT blob, as mentioned by Milton Miller, and
2) Potential interaction with the crash kernel, as used in
init/initramfs.c
If anyone sees other interactions, please feel free to let me
On Mon, May 23, 2011 at 11:12:41AM +0200, Andre Schwarz wrote:
> Ira,
>
> we have a pretty old PCI device driver here that needs some basic rework
> running on 2.6.27 on several MPC83xx.
> It's a simple char-device with "give me some data" implemented using
> read() resulting in zero-copy DMA to
On Mon, 23 May 2011 about 10:50:07 -0600, Dave Carroll wrote:
> I'm withdrawing this patch for the moment, due to two areas that need
> further research;
>
> 1) An adjacent FDT blob, as mentioned by Milton Miller, and
>
Ok ... by the way, see move_device_tree() in arch/powerpc/kernel/prom.c
>
Hello, list.
I am looking for the most-tested Linux distro for POWER7 architecture.
Sorry if it is not the correct list.
Regards,
--
Gabriel Menini
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On Mon, May 23, 2011 at 02:43:14PM -0300, Gabriel Menini wrote:
>Hello, list.
>
>I am looking for the most-tested Linux distro for POWER7 architecture.
One of the enterprise distributions are going to be the best bet for a
well tested and supported POWER7. They, of course, require purchasing a
su
On Sat, 21 May 2011 08:15:36 +1000
Benjamin Herrenschmidt wrote:
> On Fri, 2011-05-20 at 15:57 -0500, Scott Wood wrote:
>
> > I see a 2% cost going from virtual pmd to full 4-level walk in the
> > benchmark mentioned above (some type of sort), and just under 3% in
> > page-stride lat_mem_rd from
On Mon, 23 May 2011, Eric B Munson wrote:
> Commit 0837e3242c73566fc1c0196b4ec61779c25ffc93 fixes a situation on POWER7
> where events can roll back if a specualtive event doesn't actually complete.
> This can raise a performance monitor exception. We need to catch this to
> ensure
> that we res
I am using kernel version 2.6.23 which came with the Sequoia support CD. So
that means UART # 1 BSP would probably not there? But device file
/dev/ttyS1 is present in rootfs when listed using 'ls'. Do you think
updating the kernel might solve the problem?
BTW where can I see the board's DTS file?
Eric B Munson wrote:
> On Mon, 23 May 2011, Eric B Munson wrote:
>
>> Commit 0837e3242c73566fc1c0196b4ec61779c25ffc93 fixes a situation on POWER7
>> where events can roll back if a specualtive event doesn't actually complete.
>> This can raise a performance monitor exception. We need to catch thi
On Sat, 21 May 2011 08:32:58 +1000
Benjamin Herrenschmidt wrote:
> On Fri, 2011-05-20 at 14:00 -0500, Scott Wood wrote:
> > Signed-off-by: Scott Wood
> > ---
> > arch/powerpc/kernel/exceptions-64e.S | 22 +-
> > 1 files changed, 21 insertions(+), 1 deletions(-)
>
> You ca
On Tue, May 24, 2011 at 12:22:14AM +0500, Muhammad Waseem wrote:
Please don't top post.
>I am using kernel version 2.6.23 which came with the Sequoia support CD. So
>that means UART # 1 BSP would probably not there? But device file
>/dev/ttyS1 is present in rootfs when listed using 'ls'. Do you
On Mon, 2011-05-23 at 13:54 -0500, Scott Wood wrote:
> On Sat, 21 May 2011 08:15:36 +1000
> Benjamin Herrenschmidt wrote:
>
> > On Fri, 2011-05-20 at 15:57 -0500, Scott Wood wrote:
> >
> > > I see a 2% cost going from virtual pmd to full 4-level walk in the
> > > benchmark mentioned above (some
On Mon, 2011-05-23 at 15:26 -0500, Scott Wood wrote:
> On Sat, 21 May 2011 08:32:58 +1000
> Benjamin Herrenschmidt wrote:
>
> > On Fri, 2011-05-20 at 14:00 -0500, Scott Wood wrote:
> > > Signed-off-by: Scott Wood
> > > ---
> > > arch/powerpc/kernel/exceptions-64e.S | 22 +-
On Fri, May 20, 2011 at 3:29 PM, Kumar Gala wrote:
> Applied to 'test' branch. (grabbed 'v2' of tty patch). Fixed merged
> conflicts.
I don't think you pushed this branch to git.kernel.org
http://git.kernel.org/?p=linux/kernel/git/galak/powerpc.git;a=shortlog;h=refs/heads/test
--
Timur Tab
On May 23, 2011, at 4:09 PM, Tabi Timur-B04825 wrote:
> On Fri, May 20, 2011 at 3:29 PM, Kumar Gala wrote:
>
>> Applied to 'test' branch. (grabbed 'v2' of tty patch). Fixed merged
>> conflicts.
>
> I don't think you pushed this branch to git.kernel.org
>
> http://git.kernel.org/?p=linux/ke
On May 23, 2011, at 5:23 AM, Prabhakar Kushwaha wrote:
> FSL PCIe controller can act as agent(EP) or host(RC).
> Under Agent(EP) mode they are configured via Host. So it is not required to
> add
> with the PCI(e) sub-system.
>
> Add and configure PCIe controller only for RC mode.
>
> Signed-of
When using 64K pages with a separate cpio rootfs, U-Boot will align
the rootfs on a 4K page boundary. When the memory is reserved, and
subsequent early memblock_alloc is called, it will allocate memory
between the 64K page alignment and reserved memory. When the reserved
memory is subsequently free
On Tue, 24 May 2011 06:51:01 +1000
Benjamin Herrenschmidt wrote:
> Is your linear mapping bolted ? If it is you may be able to cut out most
> of the save/restore stuff (SRR0,1, ...) since with a normal walk you
> won't take nested misses.
It is bolted -- we ignore anything we can't map with 16 e
On Mon, 2011-05-23 at 18:31 -0500, Scott Wood wrote:
> On Tue, 24 May 2011 06:51:01 +1000
> Benjamin Herrenschmidt wrote:
>
> > Is your linear mapping bolted ? If it is you may be able to cut out most
> > of the save/restore stuff (SRR0,1, ...) since with a normal walk you
> > won't take nested m
On Thu, 2011-05-12 at 11:16 -0700, Tirumala Marri wrote:
> So what is the best way to handle this? It appears (based
> on the comments of others and my own experience) that there
> is no DCR that exists and behaves the way that previous SOCs
> behaved to give us the link status?
The register ab
Hi,
On Fri, May 20, 2011 at 4:49 AM, Bjorn Helgaas wrote:
> On Thu, May 19, 2011 at 5:12 PM, Benjamin Herrenschmidt
> wrote:
>> On Thu, 2011-05-19 at 11:58 -0600, Bjorn Helgaas wrote:
>>> The scan below PCIX0 (bus 0001:00) doesn't find anything. You really
>>> need a powerpc expert to help here
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