* #PPC: timeout while waiting for freeze
From: Bheemappa @ 2007-11-22 6:00 UTC (permalink / raw)
To: linuxppc-embedded
Hello
I am using BDI2000 debugger to debug our custom board which has
MPC7457 processor and Marvell's discovery-ii(MV64360) as host bridge. I
have
connectd target board to BDI using JTAG.I am getting the BDI prompt and
also its reading PVR number correctly, but when I am trying to access
any memory location i.e 0xf1000000 using below command its giving below
error.
BDI> md 0xf1000000
#PPC: timeout while waiting for freeze
Why this error is coming ? , can you give us more detailed description
for this error message , so that we can trace the source of error mssage.
Regards
Bheema
RASS Tech Pvt Ltd
Bangalore
^ permalink raw reply
* Re: [PATCH 01/10] powerpc: Set up OF properties for ppc32 kexec
From: Stephen Rothwell @ 2007-11-22 22:17 UTC (permalink / raw)
To: Dale Farnsworth; +Cc: linuxppc-dev
In-Reply-To: <20071122154517.GA26340@xyzzy.farnsworth.org>
[-- Attachment #1: Type: text/plain, Size: 450 bytes --]
Hi Dale,
Just a nit ...
On Thu, 22 Nov 2007 08:45:17 -0700 Dale Farnsworth <dale@farnsworth.org> wrote:
>
> +static struct property crashk_base_prop = {
> + .name = "linux,crashkernel-base",
> + .length = sizeof(unsigned long),
> + .value = &crashk_res.start, };
^^
Should be on a new line.
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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^ permalink raw reply
* Re: [PATCH 03/10] powerpc: Add kexec support for PPC_85xx platforms
From: Stephen Rothwell @ 2007-11-22 22:20 UTC (permalink / raw)
To: Dale Farnsworth; +Cc: linuxppc-dev
In-Reply-To: <20071122154607.GA26447@xyzzy.farnsworth.org>
[-- Attachment #1: Type: text/plain, Size: 1670 bytes --]
More nits ...
On Thu, 22 Nov 2007 08:46:07 -0700 Dale Farnsworth <dale@farnsworth.org> wrote:
>
> @@ -259,6 +260,11 @@ define_machine(mpc85xx_ads) {
> .show_cpuinfo = mpc85xx_ads_show_cpuinfo,
> .get_irq = mpic_get_irq,
> .restart = fsl_rstcr_restart,
> +#ifdef CONFIG_KEXEC
> + .machine_kexec_prepare = default_machine_kexec_prepare,
> + .machine_kexec = default_machine_kexec,
> + .machine_crash_shutdown = default_machine_crash_shutdown,
> +#endif
Please line these up for consistency.
> @@ -352,6 +353,11 @@ define_machine(mpc85xx_cds) {
> #else
> .restart = fsl_rstcr_restart,
> #endif
> +#ifdef CONFIG_KEXEC
> + .machine_kexec_prepare = default_machine_kexec_prepare,
> + .machine_kexec = default_machine_kexec,
> + .machine_crash_shutdown = default_machine_crash_shutdown,
> +#endif
And here
> @@ -224,6 +225,11 @@ define_machine(mpc8572_ds) {
> #endif
> .get_irq = mpic_get_irq,
> .restart = fsl_rstcr_restart,
> +#ifdef CONFIG_KEXEC
> + .machine_kexec_prepare = default_machine_kexec_prepare,
> + .machine_kexec = default_machine_kexec,
> + .machine_crash_shutdown = default_machine_crash_shutdown,
> +#endif
And again ...
> @@ -202,6 +203,11 @@ define_machine(mpc85xx_mds) {
> .init_IRQ = mpc85xx_mds_pic_init,
> .get_irq = mpic_get_irq,
> .restart = fsl_rstcr_restart,
> +#ifdef CONFIG_KEXEC
> + .machine_kexec_prepare = default_machine_kexec_prepare,
> + .machine_kexec = default_machine_kexec,
> + .machine_crash_shutdown = default_machine_crash_shutdown,
> +#endif
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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^ permalink raw reply
* Re: [PATCH] PPC: CHRP - fix possible NULL pointer dereference
From: Stephen Rothwell @ 2007-11-22 23:16 UTC (permalink / raw)
To: Cyrill Gorcunov; +Cc: Olof Johansson, PPCML, Paul, Mackerras, LKML
In-Reply-To: <20071122195423.GA9877@cvg>
[-- Attachment #1: Type: text/plain, Size: 658 bytes --]
On Thu, 22 Nov 2007 22:54:23 +0300 Cyrill Gorcunov <gorcunov@gmail.com> wrote:
>
> This patch does fix possible NULL pointer dereference
> inside of strncmp() if of_get_property() failed.
Thanks for this.
> static void __init sio_init(void)
> {
> struct device_node *root;
> + const char *model = NULL;
You don't need this initialization as you always assign the variable
before you use it.
> + root = of_find_node_by_path("/");
> + if (root) {
if (!root)
return;
would save a level of indentation. Not important.
--
Cheers,
Stephen Rothwell sfr@canb.auug.org.au
http://www.canb.auug.org.au/~sfr/
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^ permalink raw reply
* Re: Hardware debuggers for PPC74xx G4 CPUs
From: Benjamin Herrenschmidt @ 2007-11-22 23:37 UTC (permalink / raw)
To: Wolfgang Denk; +Cc: Olof Johansson, linuxppc-dev
In-Reply-To: <20071118004729.67824247F1@gemini.denx.de>
On Sun, 2007-11-18 at 01:47 +0100, Wolfgang Denk wrote:
> In message <9e4733910711141834n2bfb1742v5637c56e27e26f5a@mail.gmail.com> you wrote:
> >
> > > * The documentation is only available under NDA, a problem for open
> > > source debuggers.
> >
> > This is what we need. I would like it specifically for the mpc5200.
> > But we want to use it in OpenOCD so NDA won't work.
>
> It doesn't work. Been there a logn time ago. It's and endless
> fingerpointing. Freescale (by then: Motorola) says they cannot
> release any information because of their contracts with IBM, and vice
> versa.
It seems like AMCC does provide the necessary infos for 4xx processors
though. Jon, do you think what they provide is enough to use an open
source debugger ?
Ben.
^ permalink raw reply
* Re: Hardware debuggers for PPC74xx G4 CPUs
From: Jon Smirl @ 2007-11-23 0:00 UTC (permalink / raw)
To: benh; +Cc: Olof Johansson, linuxppc-dev
In-Reply-To: <1195774625.6970.145.camel@pasglop>
On 11/22/07, Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote:
>
> On Sun, 2007-11-18 at 01:47 +0100, Wolfgang Denk wrote:
> > In message <9e4733910711141834n2bfb1742v5637c56e27e26f5a@mail.gmail.com> you wrote:
> > >
> > > > * The documentation is only available under NDA, a problem for open
> > > > source debuggers.
> > >
> > > This is what we need. I would like it specifically for the mpc5200.
> > > But we want to use it in OpenOCD so NDA won't work.
> >
> > It doesn't work. Been there a logn time ago. It's and endless
> > fingerpointing. Freescale (by then: Motorola) says they cannot
> > release any information because of their contracts with IBM, and vice
> > versa.
>
> It seems like AMCC does provide the necessary infos for 4xx processors
> though. Jon, do you think what they provide is enough to use an open
> source debugger ?
Do you have a link to the info?
>
> Ben.
>
>
>
--
Jon Smirl
jonsmirl@gmail.com
^ permalink raw reply
* Re: Hardware debuggers for PPC74xx G4 CPUs
From: Benjamin Herrenschmidt @ 2007-11-23 0:22 UTC (permalink / raw)
To: Jon Smirl; +Cc: Olof Johansson, linuxppc-dev
In-Reply-To: <9e4733910711221600t378a3afate51cc798df0d8b8d@mail.gmail.com>
On Thu, 2007-11-22 at 19:00 -0500, Jon Smirl wrote:
> > It seems like AMCC does provide the necessary infos for 4xx
> processors
> > though. Jon, do you think what they provide is enough to use an open
> > source debugger ?
>
> Do you have a link to the info?
Not at hand, but easy to find from AMCC main product page, you can then
go to the various eval board download pages, and some of the d/l are
infos for JTAG debugger manufacturers.
Ben.
^ permalink raw reply
* Re: Initramfs problem on virtex4fx
From: David H. Lynch Jr. @ 2007-11-23 1:20 UTC (permalink / raw)
To: schardt; +Cc: Linux PPC Linux PPC
In-Reply-To: <47453B63.6010100@fz-juelich.de>
schardt wrote:
> Hi all,
>
> i try to run linux from flash with the initramfs as root filesystem.
> i wrote a simple hello_world as init to test the initramfs.
>
> the kernel boots normaly, but instead of the complete "Hello World" i
> see only "He"
> and the system hangs.
>
> Does anyone have similar problems ? And solved it ? ;)
>
> Regards
> Georg
>
The Pico Linux BSP uses initramfs. The whole Pico Linux development
environment including busybox and an initramfs cross compilers, Linux
source - pretty much everything you need is at
http://www.picocomputing.com/downloads/software.php, everything is
incorporated into a Colinux install, though you can just pull out the
necescary peices - the cross compiler, busy box, intramfs and linux
source if you are working completely under linux.
>
> -------------------------------------------------------------------
> -------------------------------------------------------------------
> Forschungszentrum Jülich GmbH
> 52425 Jülich
>
> Sitz der Gesellschaft: Jülich
> Eingetragen im Handelsregister des Amtsgerichts Düren Nr. HR B 3498
> Vorsitzende des Aufsichtsrats: MinDirig'in Bärbel Brumme-Bothe
> Geschäftsführung: Prof. Dr. Achim Bachem (Vorsitzender),
> Dr. Ulrich Krafft (stellv. Vorsitzender), Dr. Sebastian M. Schmidt
> -------------------------------------------------------------------
> -------------------------------------------------------------------
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>
--
Dave Lynch DLA Systems
Software Development: Embedded Linux
717.627.3770 dhlii@dlasys.net http://www.dlasys.net
fax: 1.253.369.9244 Cell: 1.717.587.7774
Over 25 years' experience in platforms, languages, and technologies too numerous to list.
"Any intelligent fool can make things bigger and more complex... It takes a touch of genius - and a lot of courage to move in the opposite direction."
Albert Einstein
^ permalink raw reply
* Re: [PATCH] PPC: CHRP - fix possible NULL pointer dereference
From: Cyrill Gorcunov @ 2007-11-23 4:23 UTC (permalink / raw)
To: Stephen Rothwell; +Cc: Olof Johansson, PPCML, Paul Mackerras, LKML
In-Reply-To: <20071123101646.63550945.sfr@canb.auug.org.au>
On 11/23/07, Stephen Rothwell <sfr@canb.auug.org.au> wrote:
> On Thu, 22 Nov 2007 22:54:23 +0300 Cyrill Gorcunov <gorcunov@gmail.com>
> wrote:
> >
> > This patch does fix possible NULL pointer dereference
> > inside of strncmp() if of_get_property() failed.
>
> Thanks for this.
>
> > static void __init sio_init(void)
> > {
> > struct device_node *root;
> > + const char *model = NULL;
>
> You don't need this initialization as you always assign the variable
> before you use it.
>
> > + root = of_find_node_by_path("/");
> > + if (root) {
>
> if (!root)
> return;
>
> would save a level of indentation. Not important.
>
> --
> Cheers,
> Stephen Rothwell sfr@canb.auug.org.au
> http://www.canb.auug.org.au/~sfr/
>
Oh my :) Thanks. I'll fix it and resend.
^ permalink raw reply
* Re: [PATCH 01/10] powerpc: Set up OF properties for ppc32 kexec
From: Dale Farnsworth @ 2007-11-23 4:43 UTC (permalink / raw)
To: Stephen Rothwell; +Cc: linuxppc-dev
In-Reply-To: <20071123091727.6e6fcd7a.sfr@canb.auug.org.au>
On Fri, Nov 23, 2007 at 09:17:27AM +1100, Stephen Rothwell wrote:
> Hi Dale,
>
> Just a nit ...
>
> On Thu, 22 Nov 2007 08:45:17 -0700 Dale Farnsworth <dale@farnsworth.org> wrote:
> > +static struct property crashk_base_prop = {
> > + .name = "linux,crashkernel-base",
> > + .length = sizeof(unsigned long),
> > + .value = &crashk_res.start, };
Heh. How did that happen? :)
I'll fix it as well as the alignment issues you mentioned.
Thanks Stephen.
-Dale
^ permalink raw reply
* Re: [PATCH] PPC: CHRP - fix possible NULL pointer dereference
From: Cyrill Gorcunov @ 2007-11-23 5:43 UTC (permalink / raw)
To: Stephen Rothwell; +Cc: Olof Johansson, PPCML, Paul Mackerras, LKML
In-Reply-To: <20071123101646.63550945.sfr@canb.auug.org.au>
[-- Attachment #1: Type: text/plain, Size: 232 bytes --]
Here is updated version
---
From: Cyrill Gorcunov <gorcunov@gmail.com>
This patch does fix possible NULL pointer dereference
inside of strncmp() if of_get_property() failed.
Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com>
---
[-- Attachment #2: ppc-chrs-null-fix.diff --]
[-- Type: text/plain, Size: 1356 bytes --]
arch/powerpc/platforms/chrp/setup.c | 13 +++++++++----
1 files changed, 9 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index 5930626..da4e45e 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -115,7 +115,7 @@ void chrp_show_cpuinfo(struct seq_file *m)
seq_printf(m, "machine\t\t: CHRP %s\n", model);
/* longtrail (goldengate) stuff */
- if (!strncmp(model, "IBM,LongTrail", 13)) {
+ if (model && !strncmp(model, "IBM,LongTrail", 13)) {
/* VLSI VAS96011/12 `Golden Gate 2' */
/* Memory banks */
sdramen = (in_le32(gg2_pci_config_base + GG2_PCI_DRAM_CTRL)
@@ -203,15 +203,20 @@ static void __init sio_fixup_irq(const char *name, u8 device, u8 level,
static void __init sio_init(void)
{
struct device_node *root;
+ const char *model;
- if ((root = of_find_node_by_path("/")) &&
- !strncmp(of_get_property(root, "model", NULL),
- "IBM,LongTrail", 13)) {
+ root = of_find_node_by_path("/");
+ if (!root)
+ return;
+
+ model = of_get_property(root, "model", NULL);
+ if (model && !strncmp(model,"IBM,LongTrail", 13)) {
/* logical device 0 (KBC/Keyboard) */
sio_fixup_irq("keyboard", 0, 1, 2);
/* select logical device 1 (KBC/Mouse) */
sio_fixup_irq("mouse", 1, 12, 2);
}
+
of_node_put(root);
}
^ permalink raw reply related
* register writing fails
From: Deep Deep @ 2007-11-23 6:55 UTC (permalink / raw)
To: Linuxppc-dev
[-- Attachment #1: Type: text/plain, Size: 500 bytes --]
Hi everyone,
I am writing a serial port driver for ppc board. I am facing a very strange problem. I can read the values from registers of serial port but at the time of configuration or writing the values in the register, its not allowing me to change the reset values. I am not sure about the problem cause.
Thanks,
sachin
____________________________________________________________________________________
Never miss a thing. Make Yahoo your home page.
http://www.yahoo.com/r/hs
[-- Attachment #2: Type: text/html, Size: 725 bytes --]
^ permalink raw reply
* Re: Firmware Support for USB Hub
From: Misbah khan @ 2007-11-23 8:45 UTC (permalink / raw)
To: linuxppc-embedded
In-Reply-To: <13877282.post@talk.nabble.com>
This is the reply that i got from the Freescale :-
--------------------------------------------------------------------------
Reply from Freescale
In reply to your Service Request SR 1-403672820:
We recommend using the MPC8272 USB controller.
We know that customers use the MPC8272/MPC8248 USB controller.
You can find also USB drivers in Linux software for the MPC8272.
For example Linux BSP for Freescale MPC8272ADS contains USB slave
driver
(http://www.freescale.com/webapp/sps/site/overview.jsp?nodeId=0127260061033202A5).
Linux USB driver is available in the Arabella Linux
(http://www.arabellasw.com/products-pow2.php).
If the MPC8272 is USB host, the transaction-level interface can be used.
Note: The MPC8272 USB does not support high-speed mode. It can
operate on low-speed mode (1.5MHz) or full-speed mode (12MHz).
------------------------------------------------------------------------------------------
Can any body comment on this and help me how to start with and requirement
is this :-
I need a USB Hub to be connected to the PPC8248 board with Montavista Linux
2.6.10
on it what shall i do to achive it ....????The challenges you already know
Hoping for the the Help ...
Misbah khan wrote:
>
> Hi all,
>
> I am using a 8248 processor which has a USB controller and i need to
> connect a USB Hub to it, iam using Montavista Linux .I need to know that
> what are the support i need form Montavista or Open source to have an
> interface with Usb hub. ???
>
> Is there any driver that we need to make if so what type ???
>
> --misbah <><
>
--
View this message in context: http://www.nabble.com/Firmware-Support-for-USB-Hub-tf4850180.html#a13908701
Sent from the linuxppc-embedded mailing list archive at Nabble.com.
^ permalink raw reply
* Re: ML403 USB driver
From: Peter Korsgaard @ 2007-11-23 10:34 UTC (permalink / raw)
To: Lorenz Kolb; +Cc: linuxppc-embedded
In-Reply-To: <13858912.post@talk.nabble.com>
>>>>> "Lorenz" == Lorenz Kolb <linuxppcemb@lkmail.de> writes:
Lorenz> Hi,
Lorenz> we just tried the USB driver (from Peter Korsgaard) from
Lorenz> Grant's virtex tree.
Lorenz> Nevertheless we could not get the peripheral ports work as gadgets.
Lorenz> Has anyone tried (and probably fixed) that before?
My driver so far only has host support. I'm working on the peripheral
support (or rather, a colleage of mine is) but it's quite early days
..
Lorenz> Anyway, only one of the two peripheral ports seems to be active.
The Linux gadget stack only support a single peripheral port.
--
Bye, Peter Korsgaard
^ permalink raw reply
* cant' compile busybox-1.8.1 with eldk 4.1
From: fabien @ 2007-11-23 10:56 UTC (permalink / raw)
To: linuxppc-embedded
I try to compile busybox for my ppc custom board. I successfuly
compile kernel 2.6.19 with
eldk and boot it. Now i try to get busybox working but i get some
errors at compile time.
It's look strange if someone can spend one minute to look at the compile log
What step could i miss ?
Thank a lot
[fabien@localhost busybox-1.8.1] cat /opt/eldk/version
ELDK version 4.1
ppc_8xx: Build 2007-01-21-uclibc
[fabien@localhost busybox-1.8.1]$ make CROSS_COMPILE=ppc_8xx-
CC applets/applets.o
In file included from /opt/eldk/usr/../ppc_8xx/usr/include/netinet/in.h:212,
from /opt/eldk/usr/../ppc_8xx/usr/include/arpa/inet.h:23,
from include/platform.h:139,
from include/libbb.h:13,
from include/busybox.h:10,
from applets/applets.c:11:
/opt/eldk/usr/../ppc_8xx/usr/include/bits/socket.h:305:24: error:
asm/socket.h: No such file or directory
In file included from /opt/eldk/usr/../ppc_8xx/usr/include/sys/ioctl.h:27,
from /opt/eldk/usr/../ppc_8xx/usr/include/sys/mount.h:26,
from include/platform.h:305,
from include/libbb.h:13,
from include/busybox.h:10,
from applets/applets.c:11:
/opt/eldk/usr/../ppc_8xx/usr/include/bits/ioctls.h:24:24: error:
asm/ioctls.h: No such file or directory
In file included from /opt/eldk/usr/../ppc_8xx/usr/include/signal.h:309,
from include/libbb.h:23,
from include/busybox.h:10,
from applets/applets.c:11:
/opt/eldk/usr/../ppc_8xx/usr/include/bits/sigcontext.h:28:29: error:
asm/sigcontext.h: No such file or directory
In file included from /opt/eldk/usr/../ppc_8xx/usr/include/ucontext.h:25,
from /opt/eldk/usr/../ppc_8xx/usr/include/signal.h:326,
from include/libbb.h:23,
from include/busybox.h:10,
from applets/applets.c:11:
/opt/eldk/usr/../ppc_8xx/usr/include/sys/ucontext.h:37: error: field
'uc_mcontext' has incomplete type
In file included from /opt/eldk/usr/../ppc_8xx/usr/include/sys/param.h:24,
from include/libbb.h:67,
from include/busybox.h:10,
from applets/applets.c:11:
/opt/eldk/usr/../ppc_8xx/usr/include/linux/param.h:4:23: error:
asm/param.h: No such file or directory
make[1]: *** [applets/applets.o] Erreur 1
make: *** [applets] Erreur 2
^ permalink raw reply
* Re: cant' compile busybox-1.8.1 with eldk 4.1
From: Clemens Koller @ 2007-11-23 12:05 UTC (permalink / raw)
To: fabien; +Cc: linuxppc-embedded
In-Reply-To: <f8f856500711230256j5f3c7b9fneb7351a4fdfdfe09@mail.gmail.com>
fabien schrieb:
> I try to compile busybox for my ppc custom board.
What ARCH/cpu?
> I successfuly
> compile kernel 2.6.19 with
> eldk and boot it. Now i try to get busybox working but i get some
> errors at compile time.
> It's look strange if someone can spend one minute to look at the compile log
> What step could i miss ?
> [...]
> /opt/eldk/usr/../ppc_8xx/usr/include/linux/param.h:4:23: error:
> asm/param.h: No such file or directory
> make[1]: *** [applets/applets.o] Erreur 1
> make: *** [applets] Erreur 2
It looks like your kernel headers (ARCH-specific or generic)
are broken or missing.
See i.e. Linux From Scratch to get an idea about the dependencies.
Or, see latest kernel's 'make headers_install' target and how it is used.
Google is your friend, here...
The busybox mailing list would be more suited for this question.
Regards,
Clemens Koller
__________________________________
R&D Imaging Devices
Anagramm GmbH
Rupert-Mayer-Straße 45/1
Linhof Werksgelände
D-81379 München
Tel.089-741518-50
Fax 089-741518-19
http://www.anagramm-technology.com
^ permalink raw reply
* time accounting problem (powerpc only?)
From: Johannes Berg @ 2007-11-23 10:46 UTC (permalink / raw)
To: Linux Kernel list; +Cc: linuxppc-dev list
Hi,
On my powerbook, with NO_HZ and HIGH_RES_TIMERS, I observed recently
that powernowd would not ever switch between CPU speeds.
Doing some scripting to read /proc/stat every half second and print the
differences, I get output like this on a mostly idle system:
# for reference:
# [user, nice, system, idle, iowait, irq, softirq, steal, guest]
[4, 0, 3, 46, 0, 264, 0, 0, 0]
[5, 0, 4, 41, 0, 266, 0, 0, 0]
[4, 0, 7, 37, 0, 299, 0, 0, 0]
Now starting an empty while (1) loop, I see:
[53, 0, 1, 0, 0, 243, 0, 0, 0]
[53, 0, 2, 0, 0, 224, 0, 0, 0]
[45, 0, 7, 0, 0, 249, 0, 0, 0]
As you can see, the "irq" time is very high so that "user" (mostly my
CPU burning program) only accounts for maybe 15%. This leads to
powernowd thinking that all is fine and no switching is required. Also,
the whole stuff leads to top(1) displaying about 80-90% "hi" (hard irq?
calculated as irq - softirq?) time.
Does anybody have an idea why the irq time is so high? And no, I don't
think it can actually be true, I'm seeing maybe 500 interrupts/second
(most due to USB).
johannes
^ permalink raw reply
* Re: Firmware Support for USB Hub
From: Laurent Pinchart @ 2007-11-23 12:23 UTC (permalink / raw)
To: linuxppc-embedded; +Cc: Misbah khan
In-Reply-To: <13908701.post@talk.nabble.com>
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On Friday 23 November 2007 09:45, Misbah khan wrote:
> This is the reply that i got from the Freescale :-
>
> --------------------------------------------------------------------------
> Reply from Freescale
> In reply to your Service Request SR 1-403672820:
>
> We recommend using the MPC8272 USB controller.
> We know that customers use the MPC8272/MPC8248 USB controller.
> You can find also USB drivers in Linux software for the MPC8272.
> For example Linux BSP for Freescale MPC8272ADS contains USB slave
> driver
> (http://www.freescale.com/webapp/sps/site/overview.jsp?nodeId=0127260061033
>202A5).
>
> Linux USB driver is available in the Arabella Linux
> (http://www.arabellasw.com/products-pow2.php).
>
> If the MPC8272 is USB host, the transaction-level interface can be used.
>
> Note: The MPC8272 USB does not support high-speed mode. It can
> operate on low-speed mode (1.5MHz) or full-speed mode (12MHz).
>
> ---------------------------------------------------------------------------
>
> Can any body comment on this and help me how to start with and requirement
> is this :-
>
> I need a USB Hub to be connected to the PPC8248 board with Montavista Linux
> 2.6.10 on it what shall i do to achive it ....????The challenges you already
> know
You need a USB host driver for the CPM2 controller. There are several
solutions:
- Start with the driver available at http://cpm2usb.sourceforge.net/ and port
it for your kernel.
- Ask Montavista support for a CPM2 USB host driver (they will most likely
charge for that).
- Buy the Arabella kernel and port the driver to the Montavista kernel (ask
the Arabella support to make sure their USB host driver supports what you
need, and pay attention to possible license issues).
In the end, it boils down to writing code yourself or paying someone to do the
job.
Best regards,
Laurent Pinchart
--
Laurent Pinchart
CSE Semaphore Belgium
Chaussée de Bruxelles, 732A
B-1410 Waterloo
Belgium
T +32 (2) 387 42 59
F +32 (2) 387 42 75
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^ permalink raw reply
* Re: cant' compile busybox-1.8.1 with eldk 4.1
From: fabien @ 2007-11-23 12:39 UTC (permalink / raw)
To: Clemens Koller; +Cc: linuxppc-embedded
In-Reply-To: <4746C1F6.9050601@anagramm.de>
Thanks Clemens i've opened a thread in busybox mailing list :
http://www.busybox.net/lists/busybox/2007-November/029322.html
2007/11/23, Clemens Koller <clemens.koller@anagramm.de>:
> fabien schrieb:
> > I try to compile busybox for my ppc custom board.
>
> What ARCH/cpu?
>
> > I successfuly
> > compile kernel 2.6.19 with
> > eldk and boot it. Now i try to get busybox working but i get some
> > errors at compile time.
> > It's look strange if someone can spend one minute to look at the compi=
le log
> > What step could i miss ?
>
> > [...]
> > /opt/eldk/usr/../ppc_8xx/usr/include/linux/param.h:4:23: error:
> > asm/param.h: No such file or directory
> > make[1]: *** [applets/applets.o] Erreur 1
> > make: *** [applets] Erreur 2
>
> It looks like your kernel headers (ARCH-specific or generic)
> are broken or missing.
> See i.e. Linux From Scratch to get an idea about the dependencies.
> Or, see latest kernel's 'make headers_install' target and how it is used.
> Google is your friend, here...
>
> The busybox mailing list would be more suited for this question.
>
> Regards,
>
> Clemens Koller
> __________________________________
> R&D Imaging Devices
> Anagramm GmbH
> Rupert-Mayer-Stra=DFe 45/1
> Linhof Werksgel=E4nde
> D-81379 M=FCnchen
> Tel.089-741518-50
> Fax 089-741518-19
> http://www.anagramm-technology.com
>
>
^ permalink raw reply
* Re: cant' compile busybox-1.8.1 with eldk 4.1
From: Wolfgang Denk @ 2007-11-23 14:48 UTC (permalink / raw)
To: fabien; +Cc: linuxppc-embedded
In-Reply-To: <f8f856500711230439q39c352ffi4cf3a206de68733a@mail.gmail.com>
In message <f8f856500711230439q39c352ffi4cf3a206de68733a@mail.gmail.com> you wrote:
> Thanks Clemens i've opened a thread in busybox mailing list :
> http://www.busybox.net/lists/busybox/2007-November/029322.html
Actually you should have asked this on the LDK mailing list instead,
see http://lists.denx.de/mailman/listinfo/eldk
But before posting, you should have read the FAQ, especially
http://www.denx.de/wiki/view/DULG/ELDKIncludeFilesMissing
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
If the hours are long enough and the pay is short enough, someone
will say it's women's work.
^ permalink raw reply
* Re: Hardware debuggers for PPC74xx G4 CPUs
From: Jon Smirl @ 2007-11-23 15:03 UTC (permalink / raw)
To: benh; +Cc: Olof Johansson, linuxppc-dev
In-Reply-To: <1195777323.6970.153.camel@pasglop>
On 11/22/07, Benjamin Herrenschmidt <benh@kernel.crashing.org> wrote:
>
> On Thu, 2007-11-22 at 19:00 -0500, Jon Smirl wrote:
> > > It seems like AMCC does provide the necessary infos for 4xx
> > processors
> > > though. Jon, do you think what they provide is enough to use an open
> > > source debugger ?
> >
> > Do you have a link to the info?
>
> Not at hand, but easy to find from AMCC main product page, you can then
> go to the various eval board download pages, and some of the d/l are
> infos for JTAG debugger manufacturers.
Dominick Rath wrote OpenOCD (open source JTAG) as his senior thesis in
college, he graduated this spring and has a job now. I've sent mail to
him but he may be a lost cause.
Thesis: http://developer.berlios.de/docman/display_doc.php?docid=1367&group_id=4148
Low cost dev tools are an important part of the CPU selection process.
We went through four ARM CPUs before deciding on the MPC5200. We were
able to get ARM eval boards and JTAGs for under $500 for each of the
eval CPUs. We used the low cost evals to screen the CPUs, we didn't
want spend $5-10K until we are 90% sure we are going to use the CPU. I
returned one $5K eval board, it was a pain and it took over six months
to get a refund.
We have also learned the hard way about "port and forget" several of
the CPUs we picked had Linux ports, but the ports were five years old.
When we pushed the vendors for more recent kernels the typical answer
was, send us $50,000 and we'll see what we can do. We're not going to
send in $50K for a CPU we haven't decided to use, that answer simply
resulted in us changing CPUs. An example of this is the NXP LPC3180,
$9 with a FPU, but only a 2.6.5 kernel.
I've also only seen ARM CPUs being used in schools. You can get ARM
eval boards and a JTAG for under $100 on some ARM CPUs. AFAIK there is
no low cost PowerPC option suitable for classroom use.
--
Jon Smirl
jonsmirl@gmail.com
^ permalink raw reply
* Re: cant' compile busybox-1.8.1 with eldk 4.1
From: fabien @ 2007-11-23 15:08 UTC (permalink / raw)
To: Wolfgang Denk; +Cc: linuxppc-embedded
In-Reply-To: <20071123144834.77D1A246B5@gemini.denx.de>
2007/11/23, Wolfgang Denk <wd@denx.de>:
> In message <f8f856500711230439q39c352ffi4cf3a206de68733a@mail.gmail.com> you wrote:
> > Thanks Clemens i've opened a thread in busybox mailing list :
> > http://www.busybox.net/lists/busybox/2007-November/029322.html
>
> Actually you should have asked this on the LDK mailing list instead,
> see http://lists.denx.de/mailman/listinfo/eldk
>
> But before posting, you should have read the FAQ, especially
> http://www.denx.de/wiki/view/DULG/ELDKIncludeFilesMissing
>
> Best regards,
>
> Wolfgang Denk
>
> --
> DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
> If the hours are long enough and the pay is short enough, someone
> will say it's women's work.
>
Thanks Wolfgang
i've just seen this and it's seem work !
^ permalink raw reply
* Re: time accounting problem (powerpc only?)
From: Jörg Sommer @ 2007-11-23 14:08 UTC (permalink / raw)
To: linuxppc-dev
In-Reply-To: <1195814816.4149.94.camel@johannes.berg>
Hallo Johannes,
Johannes Berg <johannes@sipsolutions.net> wrote:
> Doing some scripting to read /proc/stat every half second and print the
> differences, I get output like this on a mostly idle system:
>
> # for reference:
> # [user, nice, system, idle, iowait, irq, softirq, steal, guest]
>
> [4, 0, 3, 46, 0, 264, 0, 0, 0]
>
> As you can see, the "irq" time is very high so that "user" (mostly my
> CPU burning program) only accounts for maybe 15%. This leads to
> powernowd thinking that all is fine and no switching is required. Also,
> the whole stuff leads to top(1) displaying about 80-90% "hi" (hard irq?
> calculated as irq - softirq?) time.
I've the same problem and I see these interrupts in /proc/interrups:
% diff /proc/interrupts <(sleep 2; cat /proc/interrupts)
--- /proc/interrupts 2007-11-23 15:04:06.004846901 +0100
+++ /proc/self/fd/11 2007-11-23 15:04:05.952841422 +0100
@@ -1,15 +1,15 @@
CPU0
21: 5 MPIC 1 Edge PMac Output
24: 68 MPIC 1 Level ide1
- 25: 18063968 MPIC 1 Level VIA-PMU
+ 25: 18064241 MPIC 1 Level VIA-PMU
26: 2426 MPIC 1 Level keywest i2c
29: 1 MPIC 1 Level ohci_hcd:usb2
30: 1 MPIC 1 Edge PMac Input
39: 843910 MPIC 1 Level ide0
41: 990592 MPIC 1 Level eth0
- 42: 1415066 MPIC 1 Level keywest i2c
- 47: 2075159 MPIC 1 Level GPIO1 ADB
- 48: 6686659 MPIC 1 Level radeon@pci:0000:00:10.0
+ 42: 1415084 MPIC 1 Level keywest i2c
+ 47: 2075193 MPIC 1 Level GPIO1 ADB
+ 48: 6686778 MPIC 1 Level radeon@pci:0000:00:10.0
61: 0 MPIC 1 Edge Sound Headphone Detection
63: 94238 MPIC 1 Level ehci_hcd:usb1, ohci_hcd:usb3, ohci_hcd:usb4
BAD: 19
I don't know where they come from, but that's the cause of the high IRQ
time.
Bye, Jörg.
--
Je planmäßiger ein Mensch vorgeht,
desto stärker mag ihn der Zufall treffen.
Erich Krunau ‚Die Physiker‘
^ permalink raw reply
* Re: ML403 USB driver
From: Grant Likely @ 2007-11-23 17:31 UTC (permalink / raw)
To: Peter Korsgaard; +Cc: Lorenz Kolb, linux-usb-devel, linuxppc-embedded
In-Reply-To: <87lk8pdzcw.fsf@macbook.be.48ers.dk>
Hi Peter,
I've done a bunch more work on the host side of the c67x00 driver.
I'd like to try and get it into 2.6.25. I'm planning to post a
cleaned up set of patches to the usb-list this afternoon for review.
However, the change set between what you posted and what I have now is
quite large so I've also pushed my incremental patch set to my git
tree so you can see how it has changed from your original patchset.
(BTW, ignore the last patch in the series; that was for
experimentation only and it won't be in the cleaned up patchset)
You can see the tree at:
http://git.secretlab.ca/git/gitweb.cgi?p=linux-2.6-virtex.git;a=shortlog;h=virtex-c67x00-dev
Or you can pull from:
git://git.secretlab.ca/git/linux-2.6-virtex.git virtex-c67x00-dev
Grant Likely (17):
[C67x00] Fix calculation of frame bandwidth
[c67x00] Remove unnecessary references to pt_regs
[C67x00] Added error handling paths to lowlevel interface code
[C67x00] Change 'struct c67x00_drv' to 'struct c67x00_device'
C67x00: Add registration banner
[C67x00] Merge c67x00-hub.c into c67x00-hcd.c
C67x00: fixes for 2.6.24
c67x00: consolidate header files
C67x00: Eliminate done list lock
c67x00: Fix incorrectly handled error path.
c67x00: Tighten up error paths
c67x00: Fix race condition in ll_start()
c67x00: eliminate unnecessary INIT_COMPLETION() in low level interface.
c67x00: Use an inline function instead of #define for dbg_td
c67x00: Fix manipulation of urb_iso_count
c67x00: fix unnecessary list_for_each_entry_safe()
c67x00: eliminate done tasklet
Peter Korsgaard (4):
[C67x00] Make usb_hcd_irq work for multi-role USB controllers w/
shared irq
[C67x00] Base support for the Cypress c67x00 multi-role USB controllers
[C67x00] HCD support for Cypress c67x00
[C67x00] Gadget support for Cypress c67x00
drivers/usb/Kconfig | 2 +
drivers/usb/Makefile | 2 +
drivers/usb/c67x00/Kconfig | 22 +
drivers/usb/c67x00/Makefile | 15 +
drivers/usb/c67x00/c67x00-drv.c | 301 +++++++++
drivers/usb/c67x00/c67x00-hcd.c | 390 ++++++++++++
drivers/usb/c67x00/c67x00-hcd.h | 162 +++++
drivers/usb/c67x00/c67x00-ll-hpi.c | 512 ++++++++++++++++
drivers/usb/c67x00/c67x00-sched.c | 1188 ++++++++++++++++++++++++++++++++++++
drivers/usb/c67x00/c67x00-udc.c | 166 +++++
drivers/usb/c67x00/c67x00-udc.h | 59 ++
drivers/usb/c67x00/c67x00.h | 236 +++++++
drivers/usb/core/hcd.c | 6 +-
drivers/usb/gadget/Kconfig | 7 +
include/linux/usb/c67x00.h | 45 ++
15 files changed, 3112 insertions(+), 1 deletions(-)
create mode 100644 drivers/usb/c67x00/Kconfig
create mode 100644 drivers/usb/c67x00/Makefile
create mode 100644 drivers/usb/c67x00/c67x00-drv.c
create mode 100644 drivers/usb/c67x00/c67x00-hcd.c
create mode 100644 drivers/usb/c67x00/c67x00-hcd.h
create mode 100644 drivers/usb/c67x00/c67x00-ll-hpi.c
create mode 100644 drivers/usb/c67x00/c67x00-sched.c
create mode 100644 drivers/usb/c67x00/c67x00-udc.c
create mode 100644 drivers/usb/c67x00/c67x00-udc.h
create mode 100644 drivers/usb/c67x00/c67x00.h
create mode 100644 include/linux/usb/c67x00.h
Cheers,
g.
On 11/23/07, Peter Korsgaard <jacmet@sunsite.dk> wrote:
> >>>>> "Lorenz" == Lorenz Kolb <linuxppcemb@lkmail.de> writes:
>
> Lorenz> Hi,
>
> Lorenz> we just tried the USB driver (from Peter Korsgaard) from
> Lorenz> Grant's virtex tree.
>
> Lorenz> Nevertheless we could not get the peripheral ports work as gadgets.
> Lorenz> Has anyone tried (and probably fixed) that before?
>
> My driver so far only has host support. I'm working on the peripheral
> support (or rather, a colleage of mine is) but it's quite early days
> ..
>
> Lorenz> Anyway, only one of the two peripheral ports seems to be active.
>
> The Linux gadget stack only support a single peripheral port.
>
> --
> Bye, Peter Korsgaard
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
>
--
Grant Likely, B.Sc., P.Eng.
Secret Lab Technologies Ltd.
grant.likely@secretlab.ca
(403) 399-0195
^ permalink raw reply
* sys_mpc83xx spi driver not probed
From: Joel Rouch @ 2007-11-23 17:02 UTC (permalink / raw)
To: linuxppc-dev
Hello
I have a custom 8349 ppc board. I have defined the spi master in the
configuration.
While booting my board, I driver is well added and linked to platform
bus, however I don't see that the probe entry point is reached.
I don't succeed to understand who is triggering the probe. Can someone
point me to the right link or explain me how to force it ?
Thanks
^ permalink raw reply
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