Messages in this thread Patch in this message | | | Date | Sun, 9 Mar 2003 19:36:39 +0000 | From | Russell King <> | Subject | Fwd: [PATCH] cpufreq (5/7): add support for ICH4-M chipset in speedstep driver |
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----- Forwarded message from Dominik Brodowski <linux@brodo.de> -----
From: Dominik Brodowski <linux@brodo.de> To: torvalds@transmeta.com Cc: cpufreq@www.linux.org.uk Subject: [PATCH] cpufreq (5/7): add support for ICH4-M chipset in speedstep driver Date: Fri, 7 Mar 2003 11:09:16 +0100
Intel ICH4-M soutbridges use exactly the same register interface for SpeedStep as ICH2-M and ICH3-M southbridges -- which makes adding support for this bridge (almost) trivial.
Please apply,
Dominik
speedstep.c | 16 +++++++++++++++- 1 files changed, 15 insertions(+), 1 deletion(-)
diff -ruN linux-original/arch/i386/kernel/cpu/cpufreq/speedstep.c linux/arch/i386/kernel/cpu/cpufreq/speedstep.c --- linux-original/arch/i386/kernel/cpu/cpufreq/speedstep.c 2003-03-06 21:56:18.000000000 +0100 +++ linux/arch/i386/kernel/cpu/cpufreq/speedstep.c 2003-03-06 21:57:07.000000000 +0100 @@ -29,6 +29,9 @@ #include <asm/msr.h> +#ifndef PCI_DEVICE_ID_INTEL_82801DB_12 +#define PCI_DEVICE_ID_INTEL_82801DB_12 0x24cc +#endif /* speedstep_chipset: * It is necessary to know which chipset is used. As accesses to @@ -40,7 +43,7 @@ #define SPEEDSTEP_CHIPSET_ICH2M 0x00000002 #define SPEEDSTEP_CHIPSET_ICH3M 0x00000003 - +#define SPEEDSTEP_CHIPSET_ICH4M 0x00000004 /* speedstep_processor */ @@ -106,6 +109,7 @@ switch (speedstep_chipset) { case SPEEDSTEP_CHIPSET_ICH2M: case SPEEDSTEP_CHIPSET_ICH3M: + case SPEEDSTEP_CHIPSET_ICH4M: /* get PMBASE */ pci_read_config_dword(speedstep_chipset_dev, 0x40, &pmbase); if (!(pmbase & 0x01)) @@ -166,6 +170,7 @@ switch (speedstep_chipset) { case SPEEDSTEP_CHIPSET_ICH2M: case SPEEDSTEP_CHIPSET_ICH3M: + case SPEEDSTEP_CHIPSET_ICH4M: /* get PMBASE */ pci_read_config_dword(speedstep_chipset_dev, 0x40, &pmbase); if (!(pmbase & 0x01)) @@ -245,6 +250,7 @@ switch (speedstep_chipset) { case SPEEDSTEP_CHIPSET_ICH2M: case SPEEDSTEP_CHIPSET_ICH3M: + case SPEEDSTEP_CHIPSET_ICH4M: { u16 value = 0; @@ -277,6 +283,14 @@ static unsigned int speedstep_detect_chipset (void) { speedstep_chipset_dev = pci_find_subsys(PCI_VENDOR_ID_INTEL, + PCI_DEVICE_ID_INTEL_82801DB_12, + PCI_ANY_ID, + PCI_ANY_ID, + NULL); + if (speedstep_chipset_dev) + return SPEEDSTEP_CHIPSET_ICH4M; + + speedstep_chipset_dev = pci_find_subsys(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_82801CA_12, PCI_ANY_ID, PCI_ANY_ID, _______________________________________________ Cpufreq mailing list Cpufreq@www.linux.org.uk http://www.linux.org.uk/mailman/listinfo/cpufreq ----- End forwarded message ----- -- Russell King (rmk@arm.linux.org.uk) The developer of ARM Linux http://www.arm.linux.org.uk/personal/aboutme.html
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