On Fri, Mar 26, 2010 at 07:43:20AM -1000, Mitch Bradley wrote:
What is the reason for turning off the data caches? Leaving all caches
turned on and coherent with one another has always worked well for me at
the interface from firmware to a booted program.
With the data caches on, you need
On Sun, Jun 13, 2010 at 11:23:45PM -0600, Grant Likely wrote:
Or perhaps the MMU and caches can be turned off for the duration of the
callback.
I don't have the details of ARM MMUs and caches reloaded into my head
yet. Maybe next week...
We've had these kinds of questions in the past.
On Sun, Jun 13, 2010 at 09:45:50PM -1000, Mitch Bradley wrote:
None of this is a deal-breaker for the kind of debugging tasks that are
the primary use case for the callback.
Would you mind explaining what kind of tasks these callbacks will
be used for?
On Mon, Jun 14, 2010 at 07:36:10PM +1000, Benjamin Herrenschmidt wrote:
However, there's a lot of room for abuse here and I'm worried that if it
becomes widespread, we'll start seeing vendors use that as a way to do
some kind of HAL and hide various platform methods in there (clock
control,
On Fri, Jun 18, 2010 at 01:47:28PM +0100, Lorenzo Pieralisi wrote:
I think chip-select addressing should be used if that is the way HW handles
it. If the device is described through a memory-mapping,
ex. snippet follows:
ser...@101f2000 {
compatible = arm,pl011;
reg =
On Thu, Jan 27, 2011 at 09:50:43AM -0600, Rob Herring wrote:
+ /*
+ * Otherwise map the 1MB region r2 points to (atags or dtb)
+ */
+1: mov r0, r2, lsr #20
+ mov r0, r0, lsl #20
+ sub r3, r0, #(PHYS_OFFSET 0xff00)
+ .if (PHYS_OFFSET
On Thu, Jan 27, 2011 at 11:41:30AM -0600, Rob Herring wrote:
Russell,
On 01/27/2011 10:31 AM, Russell King - ARM Linux wrote:
On Thu, Jan 27, 2011 at 09:50:43AM -0600, Rob Herring wrote:
+ /*
+* Otherwise map the 1MB region r2 points to (atags or dtb)
+*/
+1: mov r0, r2, lsr
On Fri, Jan 28, 2011 at 08:00:46AM -0600, Rob Herring wrote:
@@ -206,11 +206,17 @@ __create_page_tables:
#endif
/*
- * Then map first 1MB of ram in case it contains our boot params.
+ * Then map boot params address in r2 or
+ * the first 1MB of ram if boot params
On Fri, Apr 29, 2011 at 09:16:39AM -0400, Nicolas Pitre wrote:
On Fri, 29 Apr 2011, Tony Lindgren wrote:
If the compressed image is smaller than BSS, then we end up
having DT data in the BSS area. In this case the compressed
image is about 2.3 MB for LZMA.
The uncompress code does
On Mon, May 02, 2011 at 09:50:11PM +, johnl...@comcast.net wrote:
Seems easy enough assuming we don't need the SCU early for the core count
and can get that from the device tree.
Beware. Things may not be that trivial when you start considering some
of the weirdnesses that some vendors
On Tue, May 03, 2011 at 09:58:14AM +0200, Arnd Bergmann wrote:
On Tuesday 03 May 2011 01:01:18 Russell King - ARM Linux wrote:
It is preferable to use the same mapping, as it ensures that you're not
going to create incompatible aliases.
Is aliasing a problem for MMIO mappings? I would
On Tue, May 17, 2011 at 05:05:12PM -0700, Stephen Neuendorffer wrote:
In drivers/amba/bus.c:
static int amba_get_enable_pclk(struct amba_device *pcdev)
{
struct clk *pclk = clk_get(pcdev-dev, apb_pclk);
static int amba_get_enable_vcore(struct amba_device *pcdev)
{
struct
On Sat, May 21, 2011 at 11:42:34AM -0600, Grant Likely wrote:
Russell, it seems to me that the primary behaviour that amba_bus has
over platform_bus is the clock management, and secondarily
verification of the type of device by the device id. Am I correct, or
am I missing something?
It
On Mon, May 23, 2011 at 08:00:15AM -0700, Stephen Neuendorffer wrote:
To be specific (whether this is 'to shreds' or not, you can decide).
1. amba_bus expects the old ARM primcell ID. The one in the new A9 IP
appears to be different. (b105900d instead of b105f00d)
Ok, so we can update to
On Thu, Jun 02, 2011 at 10:04:45AM -0600, Grant Likely wrote:
Right now we can't do dynamic registration for on-chip devices in a
lot of cases because we don't have the infrastructure to hook up the
associated struct clks.
I've been wondering about this, and I don't see it as a blocking
On Fri, Jun 03, 2011 at 12:21:50AM +0800, Barry Song wrote:
Arnd has required me to use device tree in our new SoC for the coming
upstream. so i am trying to define a property like clock = uart in
dts. then in drivers,
i get this string by:
clk = of_get_property(np, clock, NULL);
then
On Fri, Jun 03, 2011 at 10:32:52AM +0800, Barry Song wrote:
but there is really no an unified rule by now, for exmaple, samsung
just required platform device names matched with the string parameter
to get a clock.
it looks like clk_get in plat-samsung depends on the string more than
device
On Sun, Jun 12, 2011 at 02:06:37AM -0400, Nicolas Pitre wrote:
This is a resend of those patches with fixups after the latest changes
in mainline.
[PATCH 1/3] ARM: zImage: ensure it is always a multiple of 64 bits in size
This one is new and trivial.
[PATCH 2/3] ARM: zImage: Allow the
On Sun, Jun 12, 2011 at 04:34:15PM +0800, Shawn Guo wrote:
On Sun, Jun 12, 2011 at 09:15:41AM +0100, Russell King - ARM Linux wrote:
On Sun, Jun 12, 2011 at 02:06:37AM -0400, Nicolas Pitre wrote:
This is a resend of those patches with fixups after the latest changes
in mainline
On Sun, Jun 12, 2011 at 06:42:16PM +0800, Shawn Guo wrote:
On Sun, Jun 12, 2011 at 10:52:17AM +0100, Russell King - ARM Linux wrote:
On Sun, Jun 12, 2011 at 05:38:23PM +0800, Shawn Guo wrote:
On Sun, Jun 12, 2011 at 10:21:31AM +0100, Russell King - ARM Linux wrote:
What if your platform
On Sun, Jun 12, 2011 at 01:22:19PM +0200, Petr Štetiar wrote:
Shawn Guo shawn@freescale.com [2011-06-12 16:34:15]:
On Sun, Jun 12, 2011 at 09:15:41AM +0100, Russell King - ARM Linux wrote:
One thing which has been bugging me for some time is that the DT stuff
completely
On Sun, Jun 12, 2011 at 04:15:23PM +0200, Arnd Bergmann wrote:
On Sunday 12 June 2011 13:58:20 Russell King - ARM Linux wrote:
Exactly my point - I have quite a number of platforms here which will
never be able to have a boot loader capable of modifying a DT blob for
the kernel.
One
On Sun, Jun 12, 2011 at 08:57:51AM -0600, Grant Likely wrote:
On Sun, Jun 12, 2011 at 04:15:23PM +0200, Arnd Bergmann wrote:
But when you have both atag and DT and the atag overrides the DT, that
means we have incorrect information in the DT, and code might later
rely on that information.
On Sun, Jun 12, 2011 at 05:01:22PM +0200, Arnd Bergmann wrote:
Of course it should override the device tree, I'm not arguing that.
All I'm saying is that we don't need to special-case this or support
both formats once the kernel is there as long as we move the information
into appropriate
On Sun, Jun 12, 2011 at 11:47:59AM -0400, Nicolas Pitre wrote:
On Sun, 12 Jun 2011, Russell King - ARM Linux wrote:
And we've ended up with a fucked up situation which is extremely
fragile, and actually makes me _NOT_ want to convert any existing
platforms to use DT in the least.
Agreed
On Sun, Jun 12, 2011 at 02:06:38AM -0400, Nicolas Pitre wrote:
diff --git a/arch/arm/boot/compressed/vmlinux.lds.in
b/arch/arm/boot/compressed/vmlinux.lds.in
index ea80abe..6c02db1 100644
--- a/arch/arm/boot/compressed/vmlinux.lds.in
+++ b/arch/arm/boot/compressed/vmlinux.lds.in
@@ -47,6
On Mon, Jun 13, 2011 at 03:46:49AM -0700, Tony Lindgren wrote:
* Nicolas Pitre nicolas.pi...@linaro.org [110611 23:03]:
From: John Bonesio bo...@secretlab.ca
This patch provides the ability to boot using a device tree that is appended
to the raw binary zImage (e.g. cat zImage
On Mon, Jun 13, 2011 at 10:14:07AM -0400, Nicolas Pitre wrote:
On Mon, 13 Jun 2011, Tony Lindgren wrote:
* Nicolas Pitre nicolas.pi...@linaro.org [110612 11:55]:
On Sun, 12 Jun 2011, Russell King - ARM Linux wrote:
I don't see this as a sustainable way forward. If we're going
On Mon, Jun 13, 2011 at 10:53:16AM -0600, Grant Likely wrote:
On Tue, Jun 07, 2011 at 09:22:20AM -0500, Rob Herring wrote:
+- interrupt-controller : Identifies the node as an interrupt controller
+- #interrupt-cells : Specifies the number of cells needed to encode an
+ interrupt source.
On Fri, Jul 01, 2011 at 06:19:43PM +0200, Arnd Bergmann wrote:
On Friday 01 July 2011, Barry Song wrote:
It looks like we can new a common function named as of_io_earlymap()
or something in drivers/of/address.c. of_iomap() does ioremap,
of_io_earlymap() does early static mapping?
Then all
On Tue, Jul 19, 2011 at 09:17:26AM +0800, Shawn Guo wrote:
On Mon, Jul 18, 2011 at 10:02:44AM -0700, Dmitry Torokhov wrote:
On Monday, July 18, 2011 09:45:07 AM Shawn Guo wrote:
The patch makes a copy of platform data into driver data, so that any
reference to platform_data after .probe
On Tue, Jul 19, 2011 at 01:53:53PM -0600, Grant Likely wrote:
On Tue, Jul 19, 2011 at 1:48 PM, Arnd Bergmann a...@arndb.de wrote:
On Tuesday 19 July 2011 13:40:10 Grant Likely wrote:
On Tue, Jul 19, 2011 at 10:24:47AM +0800, Haojian Zhuang wrote:
Support both normal platform driver and
On Thu, Jul 28, 2011 at 12:53:47AM -0500, Nishanth Menon wrote:
+struct device *omap_hwmod_to_device(const char *oh_name)
+{
+ struct omap_hwmod *oh;
+
+ if (!oh_name) {
+ WARN(1, %s: no hwmod name!\n, __func__);
+ return ERR_PTR(-EINVAL);
+ }
+
+
On Fri, Jul 29, 2011 at 10:45:39AM -0600, Grant Likely wrote:
On Thu, Jul 28, 2011 at 02:41:30PM +0800, Haojian Zhuang wrote:
+#ifdef CONFIG_OF
+ for (i = 0; i PXA_SERIAL_NR; i++) {
+ if (serial_pxa_ports[i] == NULL)
+ break;
+ }
+ if (i =
On Fri, Jul 29, 2011 at 10:52:22AM -0600, Grant Likely wrote:
On Thu, Jul 28, 2011 at 02:41:32PM +0800, Haojian Zhuang wrote:
- /*
-* If dev-id is negative we consider it as zero.
-* The reason to do so is to avoid sysfs names that only make
-* sense when there are multiple
On Thu, Jul 21, 2011 at 04:52:18PM -0700, Kevin Hilman wrote:
Rather than embedding a struct platform_device inside a struct
omap_device, decouple them, leaving only a pointer to the
platform_device inside the omap_device.
This patch uses devres to allocate and attach the omap_device to the
On Sat, Jul 30, 2011 at 04:29:50AM -1000, Mitch Bradley wrote:
On 7/29/2011 6:55 AM, Russell King - ARM Linux wrote:
On Fri, Jul 29, 2011 at 10:52:22AM -0600, Grant Likely wrote:
On Thu, Jul 28, 2011 at 02:41:32PM +0800, Haojian Zhuang wrote:
- /*
- * If dev-id is negative we consider
On Sat, Jul 30, 2011 at 08:58:07PM -0600, Grant Likely wrote:
On Sat, Jul 30, 2011 at 01:03:32PM +0100, Russell King - ARM Linux wrote:
On Thu, Jul 21, 2011 at 04:52:18PM -0700, Kevin Hilman wrote:
Rather than embedding a struct platform_device inside a struct
omap_device, decouple them
On Thu, Jul 28, 2011 at 02:41:27PM +0800, Haojian Zhuang wrote:
+ unsigned int status, mask, irq_base, nr, data;
+ int cascade;
+
...
+ mux_info = kzalloc(sizeof(*mux_info), GFP_KERNEL);
+ if (mux_info == NULL)
+ goto out;
+
On Mon, Aug 01, 2011 at 10:50:47AM +0800, Haojian Zhuang wrote:
On Sat, Jul 30, 2011 at 12:49 AM, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
Oh ffs, why is this DT stuff causing all the clk stuff to have to change.
And specifically why is stuff converting to use clk_get_sys
On Tue, Aug 02, 2011 at 01:55:55AM +0300, Felipe Balbi wrote:
Hi,
On Mon, Aug 01, 2011 at 03:11:57PM -0700, Kevin Hilman wrote:
Russell King - ARM Linux li...@arm.linux.org.uk writes:
Help the typechecker do its job. As we have only one (at the moment...)
And make it:
+struct
On Fri, Aug 05, 2011 at 01:36:56PM -0500, Matt Sealey wrote:
On Fri, Aug 5, 2011 at 2:07 AM, David Brown dav...@codeaurora.org wrote:
On Thu, Aug 04, 2011 at 06:07:15PM -0500, Matt Sealey wrote:
Hi Grant, Shawn,
On Mon, Jul 25, 2011 at 3:46 PM, Grant Likely grant.lik...@secretlab.ca
On Tue, Aug 09, 2011 at 11:23:20AM +0200, Cousson, Benoit wrote:
Hi Grant,
Trying to bind hwmod informations with DT, I'm facing a little limitation.
A bunch of drivers are using the platform_get_resource_byname, so the
name for the resource is needed.
The name is used so far for
On Thu, Aug 11, 2011 at 11:06:23AM -0500, Rob Herring wrote:
No, either you have 1 interrupt and it is the combined one. or you have
the 9? separate interrupts. Having both combined and separate hooked up
is a bit dumb, so I would not worry about that case. I would just define
the event
On Thu, Aug 25, 2011 at 02:16:14AM +0300, Felipe Balbi wrote:
on top of all that, for IPs which are used on many SoCs (such as MUSB)
it's quite silly to force all users to provide resources in a certain
order. It sounds to me that this will be prone to error in many ways
until everything is
On Fri, Aug 26, 2011 at 08:16:11AM -0500, Rob Herring wrote:
Thomas,
On 08/26/2011 03:40 AM, Thomas Abraham wrote:
+ - arm,pl330-peri-reqs: number of actual peripheral requests connected to
the
+dma controller. Maximum value is 32.
Perhaps could be a bitmask for sparsely
On Sun, Aug 28, 2011 at 05:06:43PM -0600, Paul Walmsley wrote:
DMA resource data are usually DMA request line ID numbers.
Not always. On ARMs development platforms, we ended up using strings -
because we've ended up with a DMA controller with N request signals,
where the first three request
On Fri, Sep 02, 2011 at 10:46:56AM +0200, Cousson, Benoit wrote:
Now, that kernel.org is back, I'll pull you branches :-).
Umm. Are you sure? What are you checking - that some kernel.org
servers are reachable or that master.kernel.org is reachable (it
isn't.)
On Thu, Sep 15, 2011 at 12:07:25PM +0200, Cousson, Benoit wrote:
On OMAP4 the SoC interrupts external to the MPU (SPI) have an offset of
32. Only the internal PPI are between 0 and 31.
SGIs are 0 to 15, PPIs are 16 to 31, and SPIs are 32+ - that's the
numbering given to us by the GIC.
The
On Thu, Sep 15, 2011 at 02:28:06PM +0200, Cousson, Benoit wrote:
The HW specs is obviously counting the IRQ number at the GIC interface.
That offset is not known outside the MPUSS. Please have a look at the
OMAP4430 TRM p4761 (NDA vM version).
As far as I know, I have no access to that.
On Fri, Sep 16, 2011 at 03:38:10PM +0100, Dave Martin wrote:
This patch enables device-tree-based probing of the pata-generic
platform driver across all architectures:
* make the pata_of_generic module depend on OF instead of PPC_OF;
* supply some missing inclues;
* replace
On Fri, Sep 09, 2011 at 01:02:19AM -0700, Allen Martin wrote:
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+# ifdef SOC_NAME
+# undef MULTI_SOC
+# define MULTI_SOC
+# else
+# define SOC_NAME tegra2
+# endif
+#endif
+#ifdef CONFIG_ARCH_TEGRA_3x_SOC
+# ifdef SOC_NAME
+# undef MULTI_SOC
+#
On Sat, Sep 17, 2011 at 12:34:57PM +0200, Jean-Christophe PLAGNIOL-VILLARD
wrote:
On 11:28 Sat 17 Sep , Russell King - ARM Linux wrote:
One last point to raise here is - and it's quite a fundamental one - do we
really want this? If we're making decisions based on the SoC type
On Wed, Sep 14, 2011 at 11:31:39AM -0500, Rob Herring wrote:
From: Rob Herring rob.herr...@calxeda.com
There's really no need to set irq_start per platform for the primary gic.
The SGIs and PPIs are not handled as normal irqs, so how irqs 0-31 are
setup doesn't really matter. So allow
On Mon, Sep 19, 2011 at 11:47:18AM +0200, Cousson, Benoit wrote:
Since the cpumask is not relevant for the SPI, maybe having two
interrupt controllers will be more relevant. Or maybe 3, since there is
some SGIs as well.
I don't think anyone uses SGIs outside of the common SMP code.
On Mon, Sep 19, 2011 at 02:09:46PM +0200, Cousson, Benoit wrote:
Every CortexA9 based SoC have to add the 32 offset to the SoC level
interrupt number line. The ID numbering scheme is relevant only inside
the GIC, but at SoC level only the IRQ lines that entered the MP core
are relevant. That
On Mon, Oct 03, 2011 at 12:00:56PM +0200, Nicolas Ferre wrote:
diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c
new file mode 100644
index 000..7bcb9a9
--- /dev/null
+++ b/arch/arm/mach-at91/board-dt.c
@@ -0,0 +1,122 @@
+/*
+ * Setup code for AT91SAM
On Tue, Sep 27, 2011 at 01:10:04PM +0100, Mark Brown wrote:
On Tue, Sep 27, 2011 at 03:42:45PM +0530, Rajendra Nayak wrote:
+ init_data = devm_kzalloc(dev, sizeof(struct regulator_init_data),
+GFP_KERNEL);
+ if (!init_data)
+
On Fri, Oct 07, 2011 at 02:41:42AM +0530, Thomas Abraham wrote:
All of Samsung's s5p platforms have timer irqs statically mapped from linux
irq numbers 11 to 15. These timer irqs are moved to end of the statically
mapped linux irq space and the hardware irqs, which were statically mapped
On Thu, Nov 03, 2011 at 01:29:08PM +0100, Linus Walleij wrote:
No, if we receive another IRQ *after* the read of the register was the
question, right?
Just replace
stat = ~(1 irq);
with a second
stat = readl_relaxed(vic-base + VIC_IRQ_STATUS);
It'll work just fine, the IRQ line
On Thu, Nov 03, 2011 at 02:00:15PM +0100, Linus Walleij wrote:
On Thu, Nov 3, 2011 at 1:51 PM, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
stat = readl_relaxed(vic-base + VIC_IRQ_STATUS);
while (stat) {
while (stat) {
irq
On Thu, Nov 03, 2011 at 03:03:37PM +, Jamie Iles wrote:
On Thu, Nov 03, 2011 at 01:31:02PM +, Russell King - ARM Linux wrote:
On Thu, Nov 03, 2011 at 02:00:15PM +0100, Linus Walleij wrote:
On Thu, Nov 3, 2011 at 1:51 PM, Russell King - ARM Linux
li...@arm.linux.org.uk wrote
On Fri, Nov 11, 2011 at 06:27:03PM +, Pawel Moll wrote:
This patch removes platform SMP callbacks from ct_desc struct
and replaces them with global symbols in preparation for
DT-based support code.
Will and myself discussed how to do this, and we came up with the
ct_desc solution. Now
On Fri, Nov 11, 2011 at 06:27:02PM +, Pawel Moll wrote:
@@ -17,3 +14,12 @@ struct amba_device name##_device = { \
.irq= IRQ_##base, \
/* .dma = DMA_##base,*/ \
}
+
+/* 2MB large area for motherboard's peripherals static
On Wed, Nov 16, 2011 at 05:07:51PM +, Pawel Moll wrote:
On Wed, 2011-11-16 at 16:59 +, Rob Herring wrote:
It has nothing to do with taste and obviously documentation changes over
time. I'm going to start naming everything with legacy because someday
it all will be...
It's about
On Fri, Nov 11, 2011 at 06:27:04PM +, Pawel Moll wrote:
+#if defined(CONFIG_ARCH_VEXPRESS_DT)
+ int err;
+ const char *path;
+ struct device_node *node;
+
+ node = of_find_compatible_node(NULL, NULL, arm,sp810);
+
On Thu, Nov 17, 2011 at 06:19:18PM +0200, Peter De Schrijver wrote:
This patch splits the early init code in a common and a tegra20 specific part.
L2 cache initialization is generalized and discovers the cache associativity
at runtime. Also use arm_pm_restart instead of arm_arch_reset and reset
On Fri, Nov 18, 2011 at 12:20:48PM +, Pawel Moll wrote:
On Thu, 2011-11-17 at 15:43 +, Russell King - ARM Linux wrote:
+/* Tile's peripherals static mappings should start here */
+#define V2T_PERIPH 0xf820
+#define V2T_PERIPH_P2V(offset) ((void __iomem *)(V2T_PERIPH | (offset
On Fri, Nov 18, 2011 at 12:20:49PM +, Pawel Moll wrote:
On Thu, 2011-11-17 at 15:53 +, Russell King - ARM Linux wrote:
Again, this is _not_ how DT is supposed to work. DT is about describing
the hardware, not describing the state of something.
And that's exactly what I
On Thu, Nov 17, 2011 at 06:37:26PM +, Dave Martin wrote:
On Thu, Nov 17, 2011 at 04:05:37PM +, Russell King - ARM Linux wrote:
You do understand that system_rev is for the system _revision_ not for
some kind of system ID. For example, it's to identify whether we're on
a revision 4
On Fri, Nov 18, 2011 at 12:20:50PM +, Pawel Moll wrote:
On Thu, 2011-11-17 at 15:36 +, Russell King - ARM Linux wrote:
You do know that this
will probably cause uboot to load the uImage at 0x80008000 instead of
0x60008000, and therefore we'll lose half the RAM on this board?
I
On Fri, Nov 25, 2011 at 04:15:00PM +, Dave Martin wrote:
diff --git a/arch/arm/plat-versatile/headsmp.S
b/arch/arm/plat-versatile/headsmp.S
index d397a1f..0be2efc 100644
--- a/arch/arm/plat-versatile/headsmp.S
+++ b/arch/arm/plat-versatile/headsmp.S
@@ -28,6 +28,7 @@
On Wed, Nov 30, 2011 at 04:38:26PM -0500, Nicolas Pitre wrote:
On Wed, 30 Nov 2011, Mark Brown wrote:
On Wed, Nov 30, 2011 at 03:43:50PM -0500, Nicolas Pitre wrote:
annoying. If nothing moves I might just go ahead with those changes and
simply rip the uImage make target out of the
On Thu, Dec 01, 2011 at 11:10:50AM +, Mark Brown wrote:
On Wed, Nov 30, 2011 at 04:38:26PM -0500, Nicolas Pitre wrote:
On Wed, 30 Nov 2011, Mark Brown wrote:
Oh, dear. Any pointers to the discussions on the u-boot side?
Certainly. Many different threads actually. Here's a few:
On Tue, Dec 06, 2011 at 09:37:09AM +, Dave Martin wrote:
To clarify, you're suggesting that the meanings of all other IRQ values
would not change initially? (i.e., we remap HW irq 0, if there is one,
to some other random number but have a 1:1 mapping for everything else).
Even better.
On Tue, Dec 06, 2011 at 09:30:00AM +, Dave Martin wrote:
Do we expect there to be any platform drivers which are shared between
legacy platforms and newer DT-ised platforms?
Those drivers would be pain points since they would need to understand
both conventions.
So far as I can see,
On Tue, Dec 06, 2011 at 12:00:12PM +0100, Geert Uytterhoeven wrote:
On Tue, Dec 6, 2011 at 11:46, Russell King - ARM Linux
li...@arm.linux.org.uk wrote:
But.. let's make one thing clear: Alan Cox and Linus have been going on
about how IRQ0 should not be used. Let's be crystal clear: even
On Tue, Dec 06, 2011 at 11:05:54AM +, Alan Cox wrote:
Even better. Avoid the first 16 IRQ numbers altogether - so that ISA
drivers which have these numbers hard-encoded in them will see failures
if they're expecting standard ISA IRQ numbering.
The ISA bus space is non-discoverable so
On Tue, Dec 06, 2011 at 11:37:35AM +, Dave Martin wrote:
1) All OF code and drivers should be migrating to use 0 instead of NO_IRQ
for the no-interrupt case. Code which receives irq numbers directly
from the OF framework and refers to NO_IRQ, or expects 0 to be a valid
needs to
On Tue, Dec 06, 2011 at 11:20:49AM -0800, Linus Torvalds wrote:
Not for any device driver, though.
It's used entirely internally, and it doesn't even use
request_irq(). It uses the magic internal setup_irq() and never
*ever* exposes irq0 as anything that a driver can see.
That's what
On Fri, Dec 09, 2011 at 07:03:48PM +, Pawel Moll wrote:
If twd_base is not set, try to map the TWD registers from
arm,smp-twd Device Tree node (compatible value as used in
Highbank's DT).
Please do it the other way around - allow DT to override twd_base if
the DT node is present.
The
On Mon, Dec 26, 2011 at 09:44:52PM +0800, Richard Zhao wrote:
On Mon, Dec 26, 2011 at 11:10:30AM +, Mark Brown wrote:
The *call* is there in the regulator subsystem, it's just that none of
the drivers back it up with an actual implementation yet. Which turns
out to be a good thing as
On Tue, Jan 03, 2012 at 08:22:21AM -0800, Simon Glass wrote:
Can the Linux key codes fit in 8 bits?
That depends on your point of view.
If you hack on X, then the answer is yes and you ignore the squeels of
your users when certain key presses get misinterpreted. (The Psion LX
platform,
On Tue, Jan 03, 2012 at 08:44:32AM -0800, Dmitry Torokhov wrote:
On Tue, Jan 03, 2012 at 04:29:30PM +, Russell King - ARM Linux wrote:
On Tue, Jan 03, 2012 at 08:22:21AM -0800, Simon Glass wrote:
Can the Linux key codes fit in 8 bits?
That depends on your point of view.
If you
On Tue, Jan 03, 2012 at 07:34:48PM +0100, Nicolas Ferre wrote:
+ at91_gpio-clock = clk_get_sys(NULL, at91_gpio-chip.label);
+ if (!at91_gpio-clock) {
+ pr_err(at91_gpio.%d, failed to get clock, ignoring.\n,
+
On Sun, Jan 08, 2012 at 03:32:21PM +0200, Gilad Ben-Yossef wrote:
on_each_cpu always returns a hard coded return code of zero.
Removing all tests based on this return value saves run time
cycles for compares and code bloat for branches.
Signed-off-by: Gilad Ben-Yossef gi...@benyossef.com
On Sun, Jan 08, 2012 at 03:32:28PM +0200, Gilad Ben-Yossef wrote:
on_each_cpu returns the retunr value of smp_call_function
which is hard coded to 0.
Refactor on_each_cpu to a void function and the few callers
that check the return value to save compares and branches.
Signed-off-by: Gilad
On Fri, Jan 13, 2012 at 12:44:00AM +, Jamie Iles wrote:
+#ifdef CONFIG_OF
+int __init sic_of_init(struct device_node *np, struct device_node *parent)
+{
+ struct fpga_irq_data *sic_data = kzalloc(sizeof(*sic_data), GFP_KERNEL);
+ int err = -ENOMEM, irq;
+
+ if
On Fri, Jan 13, 2012 at 11:41:51AM -0700, Grant Likely wrote:
On Fri, Jan 13, 2012 at 10:58:34AM +, Jamie Iles wrote:
On Fri, Jan 13, 2012 at 10:48:42AM +, Russell King - ARM Linux wrote:
On Fri, Jan 13, 2012 at 12:44:00AM +, Jamie Iles wrote:
+#ifdef CONFIG_OF
+int
On Fri, Jan 13, 2012 at 02:00:41PM -0700, Grant Likely wrote:
Let me look at it a bit. You can leave the initialization loop in
fpga_irq_init() for now. I'm looking at adding a mask field to
irq_domain_add_legacy in addition to the host_data pointer. I also
want to investigate replacing
On Wed, Jan 18, 2012 at 02:36:43PM +, Lorenzo Pieralisi wrote:
Current code in the kernel, in particular the boot sequence, hinges upon a
sequential mapping of MPIDR values for cpus and related interrupt
controller CPU interfaces to logical cpu indexing.
I don't believe it does. What it
On Thu, Jan 19, 2012 at 12:18:32PM +, Catalin Marinas wrote:
On Wed, Jan 18, 2012 at 06:04:53PM +, Russell King - ARM Linux wrote:
On Wed, Jan 18, 2012 at 05:50:28PM +, Lorenzo Pieralisi wrote:
This sounds like you're saying that the contents of MPIDR might be buggy
sometime
On Thu, Jan 19, 2012 at 05:00:56PM +, David Vrabel wrote:
I don't expect any real production vexpress system to use this config
options
I do - _if_ I decide to try DT on my Versatile Express. That'll be
with the existing boot setup, which will be ATAG based.
On Thu, Jan 19, 2012 at 05:27:15PM +, Pawel Moll wrote:
On Thu, 2012-01-19 at 17:00 +, David Vrabel wrote:
The problem wasn't with including skeleton.dtsi.
Including as it is creates two device_type=memory nodes, one with
regs=0 0, which is definitely wrong.
With
This patch set cleans up the AMBA/Primecell bus support. Contained
within this set are:
1. Patches 1-5 - Allocation APIs
It seems several places in the kernel want to allocate and register
amba_device structures. Let's make this official, and common code.
So we introduce
Signed-off-by: Russell King rmk+ker...@arm.linux.org.uk
---
arch/arm/mach-u300/core.c |6 +++---
1 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index b4c6926..ed92967 100644
--- a/arch/arm/mach-u300/core.c
+++
Make the core warn about the use of -1 (NO_IRQ)
Signed-off-by: Russell King rmk+ker...@arm.linux.org.uk
---
drivers/amba/bus.c |3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/drivers/amba/bus.c b/drivers/amba/bus.c
index d15acbb..01c2cf4 100644
--- a/drivers/amba/bus.c
Signed-off-by: Russell King rmk+ker...@arm.linux.org.uk
---
include/linux/amba/bus.h | 33 +
1 files changed, 33 insertions(+), 0 deletions(-)
diff --git a/include/linux/amba/bus.h b/include/linux/amba/bus.h
index e192962..a9fab83 100644
---
Signed-off-by: Russell King rmk+ker...@arm.linux.org.uk
---
arch/arm/mach-vexpress/core.h | 17 -
arch/arm/mach-vexpress/ct-ca9x4.c |8
arch/arm/mach-vexpress/v2m.c | 20 ++--
3 files changed, 14 insertions(+), 31 deletions(-)
diff --git
Signed-off-by: Russell King rmk+ker...@arm.linux.org.uk
---
arch/arm/mach-realview/core.h| 20 ---
arch/arm/mach-realview/realview_eb.c | 38 +++---
arch/arm/mach-realview/realview_pb1176.c | 38 +++---
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