Re: [Soekris] net6501: Timer problems with Debian, no HPET support detected
Darryl Miles [darryl-mailingli...@netbauds.net] wrote: Peter Neubauer wrote: Linux depends on an ACPI BIOS to provide configuration for the HPET. The net6501 does not support ACPI, so Linux does not use the HPET. Great news on the patch. What is the reason for not having ACPI ? There is no use for it on the net6501. The BIOS implementation is a lot of work. ___ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech
Re: [Soekris] net6501: Timer problems with Debian, no HPET support detected
Peter Neubauer wrote: Linux depends on an ACPI BIOS to provide configuration for the HPET. The net6501 does not support ACPI, so Linux does not use the HPET. Great news on the patch. What is the reason for not having ACPI ? Darryl ___ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech
Re: [Soekris] net6501: Timer problems with Debian, no HPET support detected
Linux depends on an ACPI BIOS to provide configuration for the HPET.
The net6501 does not support ACPI, so Linux does not use the HPET.
However, I've created a patch (attached) for Linux 3.2 that enables HPET
on the net6501. I've been running with this patch for several months
and have no problems.
-Peter
On 3/10/2012 3:30 AM, George wrote:
I tried Debian/Ubuntu with different kernels 2.6.32 and 2.6.38 on
net6501-70 BIOS 1.41a. All do not detect the HPET.
Kernel timer interrupt frequency is approx. 1000 Hz instead of 4000 Hz
or higher with LowLatency kernel. Same kernels on other motherboards
work fine.
cat /proc/timer_list does not list hpet and shows
.resolution: 999848 nsecs instead of 1 nsecs
--- linux-3.2-rc4/arch/x86/kernel/quirks.c 2011-12-01 14:56:01.0
-0800
+++ patched_quirks.c2011-12-30 10:00:43.0 -0800
@@ -508,6 +508,20 @@
DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI, PCI_DEVICE_ID_ATI_SBX00_SMBUS,
force_disable_hpet_msi);
+
+static void e6xx_force_enable_hpet(struct pci_dev *dev)
+{
+ if (hpet_address || force_hpet_address)
+ return;
+
+ force_hpet_address = 0xfed0;
+ force_hpet_resume_type = NONE_FORCE_HPET_RESUME;
+ dev_printk(KERN_DEBUG, dev-dev, Force enabled HPET at
+ 0x%lx\n, force_hpet_address);
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_INTEL, 0x8183, e6xx_force_enable_hpet);
+
#endif
#if defined(CONFIG_PCI) defined(CONFIG_NUMA)
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Re: [Soekris] net6501: Timer problems with Debian, no HPET support detected
On 2012-03-10, Frank Schuhmann f.schuhm...@t-online.de wrote: Is the bios from the Soekris net6501 ACPI conform? No This came up on the list before, see Re: FreeBSD/amd64 on Net6501 working! from Dec 2011. ___ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech
[Soekris] net6501: Timer problems with Debian, no HPET support detected
Hi I tried Debian/Ubuntu with different kernels 2.6.32 and 2.6.38 on net6501-70 BIOS 1.41a. All do not detect the HPET. Kernel timer interrupt frequency is approx. 1000 Hz instead of 4000 Hz or higher with LowLatency kernel. Same kernels on other motherboards work fine. cat /proc/timer_list does not list hpet and shows .resolution: 999848 nsecs instead of 1 nsecs Any workaround? Regards George___ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech
Re: [Soekris] net6501: Timer problems with Debian, no HPET support detected
On 10 Mar 2012, at 11:30, George sentos...@yahoo.com wrote: Hi I tried Debian/Ubuntu with different kernels 2.6.32 and 2.6.38 on net6501-70 BIOS 1.41a. All do not detect the HPET. Kernel timer interrupt frequency is approx. 1000 Hz instead of 4000 Hz or higher with LowLatency kernel. Same kernels on other motherboards work fine. cat /proc/timer_list does not list hpet and shows .resolution: 999848 nsecs instead of 1 nsecs Any workaround? Disclaimer: I don't have a net6501. I think you really want a later kernel than the ones in Debian Squeeze. You can either get a 3.2 kernel from backports.debian.org, or you could upgrade to wheezy. There are many issues with earlier kernels that mean the very new hardware in the 6501 isn't fully supported. You should also grab the latest firmware for the 6501 from the Soekris web site. There may be beta firmware that will work better for you, as well. Chris -- Chris Boot bo...@bootc.net ___ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech
Re: [Soekris] net6501: Timer problems with Debian, no HPET support detected
Hi George, perhaps you will do a list search for the following: Author: Wim Vandeputte Subject: [Soekris] net6501 - Linux 2.6.32-5-686 (Debian 2.6.32-35squeeze2) = 2 messages Author: Karl Auerbach Subject: [Soekris] Linux on Net6501 = 2 messages Is the bios from the Soekris net6501 ACPI conform? (If not shame on me) Did you first install on another machine (Hardware) the OS and put this medium (HDD/SSD) in the Soekris box? http://www.vdr-wiki.de/wiki/index.php/ACPI_Wakeup is written in German but declares the HEPT problematic on some hardware at the example with Debian Linux very fine and shows some main boards with and without support. Or have a quick look at https://bugzilla.kernel.org/show_bug.cgi?id=12013 (English) Did this main board have special options for enable and disable the HPET in the bios and at the Soekris hardware this options should now be changed? Wim Vandeputte was using the Debian 6.0 kernel version - 2.6.32-5-686 for a test. Karl Auerbach: wrote I've now got Linux 3.0.8 up and running (in 32-bit mode) on the Net6501. I had to apply the patch below to fix the kernel panic problem. At some main boards HPET must be disabled by setting the kernel parameter hpet=disabled, it is not enough to discard this option during the kernel configuration, because the RTC driver does emulating a HPET device. I hope this was helping you out. -- Kind regards Frank -Original Message- From: soekris-tech-boun...@lists.soekris.com [mailto:soekris-tech- boun...@lists.soekris.com] On Behalf Of George Sent: Saturday, March 10, 2012 12:31 PM To: soekris-tech@lists.soekris.com Subject: [Soekris] net6501: Timer problems with Debian, no HPET support detected Hi I tried Debian/Ubuntu with different kernels 2.6.32 and 2.6.38 on net6501-70 BIOS 1.41a. All do not detect the HPET. Kernel timer interrupt frequency is approx. 1000 Hz instead of 4000 Hz or higher with LowLatency kernel. Same kernels on other motherboards work fine. cat /proc/timer_list does not list hpet and shows .resolution: 999848 nsecs instead of 1 nsecs Any workaround? Regards George __ Hinweis von ESET NOD32 Antivirus, Signaturdatenbank-Version 6955 (20120310) __ E-Mail wurde gepruft mit ESET NOD32 Antivirus. http://www.eset.com ___ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech
Re: [Soekris] net6501: Timer problems with Debian, no HPET support detected
Thank you Chris. I found no newer firmware than 1.41a on soekris downloads and I need a 2.6 kernel due to compatibility of own software (kernel driver). Kind Regards George On 10.03.2012, at 15:34, Chris Boot bo...@bootc.net wrote: On 10 Mar 2012, at 11:30, George sentos...@yahoo.com wrote: Hi I tried Debian/Ubuntu with different kernels 2.6.32 and 2.6.38 on net6501-70 BIOS 1.41a. All do not detect the HPET. Kernel timer interrupt frequency is approx. 1000 Hz instead of 4000 Hz or higher with LowLatency kernel. Same kernels on other motherboards work fine. cat /proc/timer_list does not list hpet and shows .resolution: 999848 nsecs instead of 1 nsecs Any workaround? Disclaimer: I don't have a net6501. I think you really want a later kernel than the ones in Debian Squeeze. You can either get a 3.2 kernel from backports.debian.org, or you could upgrade to wheezy. There are many issues with earlier kernels that mean the very new hardware in the 6501 isn't fully supported. You should also grab the latest firmware for the 6501 from the Soekris web site. There may be beta firmware that will work better for you, as well. Chris -- Chris Boot bo...@bootc.net ___ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech
[Soekris] net6501: Timer problems with Debian, no HPET support detected
Hi Frank Danke/Thanks. I found no option in Soekris BIOS to activate HPET. I installed always fresh OS (Ubuntu) with PXE netboot. I need 2.6.3x kernel because of own real-time kernel driver. I need high resolution timer with 4000 Hz. High resolution timer seams not work on Soekris net6501 because of missing HPET. On net6501 I only get pit and lapic but no hpet with cat /proc/timer_list. Reagrds George Hi George, perhaps you will do a list search for the following: Author: Wim Vandeputte Subject: [Soekris] net6501 - Linux 2.6.32-5-686 (Debian 2.6.32-35squeeze2) = 2 messages Author: Karl Auerbach Subject: [Soekris] Linux on Net6501 = 2 messages Is the bios from the Soekris net6501 ACPI conform? (If not shame on me) Did you first install on another machine (Hardware) the OS and put this medium (HDD/SSD) in the Soekris box? http://www.vdr-wiki.de/wiki/index.php/ACPI_Wakeup is written in German but declares the HEPT problematic on some hardware at the example with Debian Linux very fine and shows some main boards with and without support. Or have a quick look at https://bugzilla.kernel.org/show_bug.cgi?id=12013 (English) Did this main board have special options for enable and disable the HPET in the bios and at the Soekris hardware this options should now be changed? Wim Vandeputte was using the Debian 6.0 kernel version - 2.6.32-5-686 for a test. Karl Auerbach: wrote I've now got Linux 3.0.8 up and running (in 32-bit mode) on the Net6501. I had to apply the patch below to fix the kernel panic problem. At some main boards HPET must be disabled by setting the kernel parameter hpet=disabled, it is not enough to discard this option during the kernel configuration, because the RTC driver does emulating a HPET device. I hope this was helping you out. -- Kind regards Frank -Original Message- From: soekris-tech-bounces at lists.soekris.com [mailto:soekris-tech- bounces at lists.soekris.com] On Behalf Of George Sent: Saturday, March 10, 2012 12:31 PM To: soekris-tech at lists.soekris.com Subject: [Soekris] net6501: Timer problems with Debian, no HPET support detected Hi I tried Debian/Ubuntu with different kernels 2.6.32 and 2.6.38 on net6501-70 BIOS 1.41a. All do not detect the HPET. Kernel timer interrupt frequency is approx. 1000 Hz instead of 4000 Hz or higher with LowLatency kernel. Same kernels on other motherboards work fine. cat /proc/timer_list does not list hpet and shows .resolution: 999848 nsecs instead of 1 nsecs Any workaround? Regards George ___ Soekris-tech mailing list Soekris-tech@lists.soekris.com http://lists.soekris.com/mailman/listinfo/soekris-tech
