Date: Fri, 03 Sep 2004 14:24:07 -0500 From: "Jeremy Messenger" <mezz7@cox.net> To: freebsd-hackers@freebsd.org Subject: Re: Right way to test SMBus? Trying to add nForce2... Message-ID: <opsdrmuhjs9aq2h7@mezz.mezzweb.com> In-Reply-To: <opsdpyol2i9aq2h7@mezz.mezzweb.com> References: <opsdpyol2i9aq2h7@mezz.mezzweb.com>
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------------991Vyh2o6KZS979jmDboDe Content-Type: text/plain; format=flowed; delsp=yes; charset=us-ascii Content-Transfer-Encoding: 8bit On Thu, 02 Sep 2004 16:44:35 -0500, Jeremy Messenger <mezz7@cox.net> wrote: > Hello, <snip> > But in dmesg shows: > ===================================== > amdpm0: <nForce SMBus Controller> port 0-0x1f,0xec00-0xec1f irq 23 at > device 1.1 on pci0 > amdpm0: could not map i/o space > device_attach: amdpm0 attach returned 6 > ===================================== > > I think, I might have to change the PCI registers from 0x14 to 0x50 > and/or (not sure) 0x54, which I haven't done on this part yet. I hope, I > have the right PCI registers number (found in google). I am going to try > add two PCI registers (not sure how to do it yet) and I want to know how > should I test with SMBus to make sure it works? Thanks! <snip> Changed from 0x14 to 0x50 looks like it works without throw any error. Update dmesg shows: ===================================== amdpm0: <nForce SMBus Controller> port 0x5000-0x501f,0xec00-0xec1f irq 23 at device 1.1 on pci0 smbus0: <System Management Bus> on amdpm0 ===================================== I found a source for nForce2 SMBus[1] and it said that it has two SMBus interfaces (0x50 and 0x54) in a nForce2. So.. I think, I will not hack it more (due to lack of C knowledge) and keep patch (attaching) it by myself for personal. To have one 0x50 seems work for me. BTW: I am willing to test patch(es) if there has any. [1] http://www2.lm-sensors.nu/~lm78/cvs/browse.cgi/lm_sensors2/kernel/busses/i2c-nforce2.c Cheers, Mezz > Cheers, > Mezz -- mezz7 at cox.net - mezz at FreeBSD.org FreeBSD GNOME Team http://www.FreeBSD.org/gnome/ - gnome at FreeBSD.org ------------991Vyh2o6KZS979jmDboDe Content-Disposition: attachment; filename=nforce2-smbus.diff Content-Type: text/plain; name=nforce2-smbus.diff Content-Transfer-Encoding: 8bit --- sys/pci/amdpm.c.orig Thu Sep 2 11:24:09 2004 +++ sys/pci/amdpm.c Fri Sep 3 01:11:02 2004 @@ -73,10 +73,11 @@ /* nVidia nForce chipset */ #define AMDPM_VENDORID_NVIDIA 0x10de #define AMDPM_DEVICEID_NF_SMB 0x01b4 +#define AMDPM_DEVICEID_NF2_SMB 0x0084 /* PCI Configuration space registers */ #define AMDPCI_PMBASE 0x58 -#define NFPCI_PMBASE 0x14 +#define NFPCI_PMBASE 0x50 #define AMDPCI_GEN_CONFIG_PM 0x41 #define AMDPCI_PMIOEN (1<<7) @@ -167,7 +168,8 @@ } if ((vid == AMDPM_VENDORID_NVIDIA) && - (did == AMDPM_DEVICEID_NF_SMB)) { + ((did == AMDPM_DEVICEID_NF_SMB) || + (did == AMDPM_DEVICEID_NF2_SMB))) { device_set_desc(dev, "nForce SMBus Controller"); /* ------------991Vyh2o6KZS979jmDboDe--
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