Perl
In message 406A31B117F2734987636D6CCC93EE3C0438F0 at ehost011-3.exch011.intermedia.net you wrote: I've done this successfully with ELDK 4.0 and 3.1.1 on PPC440EP Yosemite board. Resulting perl binary is working with ELDK ppc_4xx filesystem (linux 2.6.13 has been used). However it doesn't run on original Yosemite filesystem (I've copied all perl files there) - it doesn't find certain glibc symbols. With ELDK 4.0 What is your original filesystem? Any standard distro, or what? tmp # /opt/bin/perl warnings.pl /opt/bin/perl: relocation error: /opt/bin/perl: symbol __floatsidf, version GLIBC_2.3.2 not defined in file libc.so.6 wie Looks as if you used the ppc_4xx packages for this, which are for FPU-less 4xx processors. On the yosemite, you should use the ppc_4xxFP tools instead. Did I something wrong? Yes. You mixed soft-fload and hard-float binaries and libraries. Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de A princess should not be afraid -- not with a brave knight to protect her. -- McCoy, Shore Leave, stardate 3025.3
[PATCH] serial: Use real irq on UART0 (IRQ = 0) on PPC4xx systems
This patch fixes a problem seen on multiple 4xx platforms, where the UART0 interrupt number is 0. The macro is_real_interrupt lead on those systems to not use an real interrupt but the timer based implementation. This problem was detected and fixed by Charles Gales cgales at amcc.com and John Baxter jbaxter at amcc.com from AMCC. Signed-off-by: Stefan Roese sr at denx.de --- commit f83094acd3258575c9a5cdb1d65e241c16eff03a tree 72582c5eeb2a9c8ea57287616d51e42fff8ed641 parent f56f68c4e1977f0e884a304af4c617bed4909417 author Stefan Roese sr at denx.de Sat, 18 Nov 2006 10:28:50 +0100 committer Stefan Roese sr at denx.de Sat, 18 Nov 2006 10:28:50 +0100 drivers/serial/8250.c | 22 ++ 1 files changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index e34bd03..a51679e 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -76,8 +76,14 @@ static unsigned int nr_uarts = CONFIG_SE * We default to IRQ0 for the no irq hack. Some * machine types want others as well - they're free * to redefine this in their header file. + * NOTE: Some PPC4xx use IRQ0 for a UART Interrupt, so + * we will assume that the IRQ is always real */ +#ifdef CONFIG_4xx +#define is_real_interrupt(irq) (1) +#else #define is_real_interrupt(irq) ((irq) != 0) +#endif #ifdef CONFIG_SERIAL_8250_DETECT_IRQ #define CONFIG_SERIAL_DETECT_IRQ 1
[PATCH] serial: Use real irq on UART0 (IRQ = 0) on PPC4xx systems
Stefan == Stefan Roese ml at stefan-roese.de writes: Hi, Stefan This patch fixes a problem seen on multiple 4xx platforms, Stefan where the UART0 interrupt number is 0. The macro Stefan is_real_interrupt lead on those systems to not use an real Stefan interrupt but the timer based implementation. That's not the proper way to fix this. Instead remap the interrupt number to make 0 invalid. I sent a similar patch some months ago and that was the reply I got: http://marc.theaimsgroup.com/?t=11436352153r=1w=2 -- Bye, Peter Korsgaard
[PATCH] serial: Use real irq on UART0 (IRQ = 0) on PPC4xx systems
On Mon, 20 Nov 2006 12:00:36 +0100 Stefan Roese ml at stefan-roese.de wrote: This patch fixes a problem seen on multiple 4xx platforms, where the UART0 interrupt number is 0. The macro is_real_interrupt lead on those systems to not use an real interrupt but the timer based implementation. NAK. Zero means no interrupt in the Linux space. If you have a physical IRQ 0 remap it to a convenient number (eg map IRQ's + 1, or stick it on the end). The logical and physical IRQ numbering in Linux don't have to match up - and given some platforms have IRQ numbering per bus and the like clearly doesn't in many cases.
[PATCH] serial: Use real irq on UART0 (IRQ = 0) on PPC4xx systems
On Mon, Nov 20, 2006 at 12:10:15PM +, Alan wrote: On Mon, 20 Nov 2006 12:54:32 +0100 (MET) Stefan Roese ml at stefan-roese.de wrote: Let's see, if I got this right. You mean that on such a platform, where 0 is a valid physical IRQ, we should assign another value as virtual IRQ number (not 0 and not -1 of course). And then the platform pic implementation should take care of the remapping of these virtual IRQ numbers to the physical numbers. Correct? Absolutely correct in all the detail. Since IRQ0 is not valid, can we arrange for the generic interrupt infrastructure to always fail it's allocation, and then remove the utterly unused bloatful irq_desc[0] ? Didn't think so since x86 folk would scream. Wait a moment, x86 can map IRQ0 to some other number for the timer interrupt, just like other architectures are being forced to map their UART interrupts. -- Russell King Linux kernel2.6 ARM Linux - http://www.arm.linux.org.uk/ maintainer of: 2.6 Serial core
[PATCH] serial: Use real irq on UART0 (IRQ = 0) on PPC4xx systems
Hello. Stefan Roese wrote: This patch fixes a problem seen on multiple 4xx platforms, where the UART0 interrupt number is 0. The macro is_real_interrupt lead on those systems to not use an real interrupt but the timer based implementation. This problem was detected and fixed by Charles Gales cgales at amcc.com and John Baxter jbaxter at amcc.com from AMCC. Signed-off-by: Stefan Roese sr at denx.de --- commit f83094acd3258575c9a5cdb1d65e241c16eff03a tree 72582c5eeb2a9c8ea57287616d51e42fff8ed641 parent f56f68c4e1977f0e884a304af4c617bed4909417 author Stefan Roese sr at denx.de Sat, 18 Nov 2006 10:28:50 +0100 committer Stefan Roese sr at denx.de Sat, 18 Nov 2006 10:28:50 +0100 drivers/serial/8250.c | 22 ++ 1 files changed, 14 insertions(+), 8 deletions(-) diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c index e34bd03..a51679e 100644 --- a/drivers/serial/8250.c +++ b/drivers/serial/8250.c @@ -76,8 +76,14 @@ static unsigned int nr_uarts = CONFIG_SE * We default to IRQ0 for the no irq hack. Some * machine types want others as well - they're free * to redefine this in their header file. + * NOTE: Some PPC4xx use IRQ0 for a UART Interrupt, so + * we will assume that the IRQ is always real */ +#ifdef CONFIG_4xx +#define is_real_interrupt(irq) (1) +#else #define is_real_interrupt(irq) ((irq) != 0) +#endif This should have been done in asm/serial.h instead, like this: #undef is_real_interrupt(irq) #define is_real_interrupt(irq) 1 Not too smart as well,but at least this wasy you won't be pulluting the generic code... WBR, Sergei
NFS Server Settings
All, Are there differnet settings for NFS Server if used with Kernel 2.4 and Kernel 2.6 ? If so could someone point out the configuraiton to be used with 2.6 ? Mudit Goel Lucent Technologies
Perl
On Monday, November 20, 2006 12:35 AM Wolfgang Denk wrote: In message 406A31B117F2734987636D6CCC93EE3C0438F0 at ehost011- 3.exch011.intermedia.net you wrote: I've done this successfully with ELDK 4.0 and 3.1.1 on PPC440EP Yosemite board. Resulting perl binary is working with ELDK ppc_4xx filesystem (linux 2.6.13 has been used). However it doesn't run on original Yosemite filesystem (I've copied all perl files there) - it doesn't find certain glibc symbols. With ELDK 4.0 What is your original filesystem? Any standard distro, or what? [Leonid] The one, supplied by AMCC with Yosemite board - came from DENX originally I believe though I'm not sure. tmp # /opt/bin/perl warnings.pl /opt/bin/perl: relocation error: /opt/bin/perl: symbol __floatsidf, version GLIBC_2.3.2 not defined in file libc.so.6 wie Looks as if you used the ppc_4xx packages for this, which are for FPU-less 4xx processors. On the yosemite, you should use the ppc_4xxFP tools instead. [Leonid] That must be it! I'll recompile, using ppc_4xxFP target. Thanks a lot, Leonid.
Perl
On Monday, November 20, 2006 12:35 AM Wolfgang Denk wrote: In message 406A31B117F2734987636D6CCC93EE3C0438F0 at ehost011- 3.exch011.intermedia.net you wrote: I've done this successfully with ELDK 4.0 and 3.1.1 on PPC440EP Yosemite board. Resulting perl binary is working with ELDK ppc_4xx filesystem (linux 2.6.13 has been used). However it doesn't run on original Yosemite filesystem (I've copied all perl files there) - it doesn't find certain glibc symbols. With ELDK 4.0 tmp # /opt/bin/perl warnings.pl /opt/bin/perl: relocation error: /opt/bin/perl: symbol __floatsidf, version GLIBC_2.3.2 not defined in file libc.so.6 wie Looks as if you used the ppc_4xx packages for this, which are for FPU-less 4xx processors. On the yosemite, you should use the ppc_4xxFP tools instead. [Leonid] Wee, this really was it, now it works! Thanks a lot again, Leonid.
[PATCH] powerpc: Add of_platform support for ROM devices
On Mon, 2006-11-20 at 16:32 +0300, Vitaly Wool wrote: + +Required properties: + + - device_type : has to be rom + - compatible : Should specify what this ROM device is compatible with + (i.e. onenand). Currently, this is most likely to be direct-mapped + (which corresponds to the MTD physmap mapping driver). + - regs : Offset and length of the register set (or memory mapping) for + the device. + +Recommended properties : + + - bank-width : Width of the flash data bus in bytes. Required + for the NOR flashes (compatible == direct-mapped and others) ONLY. Maybe you should put this in the Required section then, with a note that it's only Recommended for non-NOR flashes. I can easily imagine somebody ignoring every Recommendation section and missing this requirement. + - partitions : Several pairs of 32-bit values where the first value is + partition's offset from the start of the device and the second one is + partition size in bytes with LSB used to signify a read only + partititon (so, the parition size should always be an even number). ^^^ partition misspelled, twice. :) -Hollis
[PATCH] serial: Use real irq on UART0 (IRQ = 0) on PPC4xx systems
On Mon, 20 Nov 2006, Russell King wrote: On Mon, 20 Nov 2006 12:54:32 +0100 (MET) Stefan Roese ml at stefan-roese.de wrote: Let's see, if I got this right. You mean that on such a platform, where 0 is a valid physical IRQ, we should assign another value as virtual IRQ number (not 0 and not -1 of course). And then the platform pic implementation should take care of the remapping of these virtual IRQ numbers to the physical numbers. Since IRQ0 is not valid, can we arrange for the generic interrupt infrastructure to always fail it's allocation, and then remove the utterly unused bloatful irq_desc[0] ? Didn't think so since x86 folk would scream. Wait a moment, x86 can map IRQ0 to some other number for the timer interrupt, just like other architectures are being forced to map their UART interrupts. I think, what Russell means, is this: #define is_real_interrupt(irq) ((irq) != NO_IRQ) where the NO_IRQ macro has been introduced a LONG time ago specifically for this purpose, and is conveniently defined on some platforms to (unsigned int)-1 or similar, including asm-powerpc/irq.h. And yes, this has been discussed MANY times. Thanks Guennadi --- Guennadi Liakhovetski
passwd : error
In message 730037.99224.qm at web33015.mail.mud.yahoo.com you wrote: I use TQM8xxl board with kernel 2.6.11.7 and Ramdisk of ELDK4.0 You are aware that we don't support TQM8xxL systems in the context of the 2.6 kernel tree yet, aren't you? and in /home/ I see drwxr-sr-x2 -2 -2 1024 Nov 20 2006 van in /etc/ i see three file passwd -rwxrwxrwx 1 root root291 Nov 20 20:20 passwd -rw--- 1 -2 -2 291 Nov 20 20:20 passwd- -rwxrwxrwx 1 -2 -20 Nov 20 20:20 passwd+ in nfs dir correlative with /home/ i see drwxr-sr-x 2 4294967294 4294967294 1024 Nov 20 20:20 van and /etc/ -rwxrwxrwx 1 root root291 Nov 20 20:20 passwd -rw--- 1 4294967294 4294967294 291 Nov 20 20:20 passwd- -rwxrwxrwx 1 4294967294 42949672940 Nov 20 20:20 passwd+ Looks as if you missed to add the no_root_squash option to your NFS server's /etc/exports file... Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de Knowledge, sir, should be free to all! -- Harry Mudd, I, Mudd, stardate 4513.3
FYI: SM5xx toolchain project berliOS registration
In message 4561F9F2.8020706 at 126.com you wrote: is Here a successful story about using SM501 on PPC platform with this driver? and would you please give me some advices to drive this devices? Not in the context of the 2.6 kernel. But we have a working configuration of MPC5200 + SM501 in our 2.4 kernel tree; see the TQM5200 board config at http://www.denx.de/cgi-bin/gitweb.cgi?p=linuxppc_2_4_devel.git Best regards, Wolfgang Denk -- Software Engineering: Embedded and Realtime Systems, Embedded Linux Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de If a group of N persons implements a COBOL compiler, there will be N-1 passes. Someone in the group has to be the manager. - T. Cheatham
Wolfgang Denk
This a general notice to all users. *** WARNING *** Wolfgang Denk has done a lot of hard work to make porting Linux to as many hardware platforms as you can imagine. If some of his stuff does not work in precisely the way that you ordered, and paid *nothing* for, please dont slag Wolfgang off, or even imply that he's done something really badly. He might stop offering us these tools, for FREE. Then what would we do ? START FROM SCRATCH (again). So :- 1) if you can't read, do not post a question. 2) if you can't be bothered reading, go away completely. 3) if you have a problem (after reading) then ask. 4) if it still does not work, try reading again. You might have missed something. 5) This stuff is hard.There aren't many that can cross-port linux to a new platform, and fewer still that understand what to do if the ELDK was not there. Please stop implying that Wolfgang has done something dreadfully wrong. It's more likely to be you. Read more. For me, it took about a month to get what I wanted, based on the EDLK downloaded from Wolfgang's site, but now i have what i want. Without the ELDK i would still be no-where near. Thanks to Wolfgang. Adrian Atkins. IT Live Ltd.
Memec v4fx12lc - problem booting linux on ppc
Hi, we have a v4fx12lc fpga board from memec which we are trying to get Linux to boot on the ppc processor. We have generated a linux kernel for nfs using the MontaVista support package. We generate a bitfile with the following hardware peripherals in it : RS232 Ethernet_MAC Led_4bit Push_buttons_3bits DIP_switches_8bit OPB_INTC_0 When we download the linux image with xmd we see nothing on the screen. When we type run nothing appears on the screen and Linux does not boot. Has anyone had a similar problem ? We are stuck! Any ideas would be appreciated. We can boot a linux ramdisk kernel provided by Memec on the same board using their bitfile. So the board seems to be working in general. Thansk for any pointers and excuse us if we are posting to the wrong list (this is the only list we could find which seemed useful) ! Olivier Goudard
Wolfgang Denk
I second this. He has saved me countless hours!!! On 11/20/06, Adrian adrian at it-live.co.uk wrote: This a general notice to all users. *** WARNING *** Wolfgang Denk has done a lot of hard work to make porting Linux to as many hardware platforms as you can imagine. If some of his stuff does not work in precisely the way that you ordered, and paid *nothing* for, please dont slag Wolfgang off, or even imply that he's done something really badly. He might stop offering us these tools, for FREE. Then what would we do ? START FROM SCRATCH (again). So :- 1) if you can't read, do not post a question. 2) if you can't be bothered reading, go away completely. 3) if you have a problem (after reading) then ask. 4) if it still does not work, try reading again. You might have missed something. 5) This stuff is hard.There aren't many that can cross-port linux to a new platform, and fewer still that understand what to do if the ELDK was not there. Please stop implying that Wolfgang has done something dreadfully wrong. It's more likely to be you. Read more. For me, it took about a month to get what I wanted, based on the EDLK downloaded from Wolfgang's site, but now i have what i want. Without the ELDK i would still be no-where near. Thanks to Wolfgang. Adrian Atkins. IT Live Ltd. ___ Linuxppc-embedded mailing list Linuxppc-embedded at ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded -- /* * Steve Iribarne * Software Engineer * (aka Grunt) */
