I don't think ipmi_si will work, that's the driver for the standard
system interfaces. I'm guessing it's a Katana. If so, your board
connects to the PM over the I2C bus, and it does not use the
IPMI-specified interface over I2C (because that didn't exist when the
board was designed).
If that's the case, a driver does exist for this board, but it doesn't
tie into the standard IPMI interface and I don't have a copy of it.
If it's not a Katana, it is possible that the PM had a standard SI
interface, if so you just need the interface type, address, address
spacing, interrupt, etc.
Your best bet is to try to get the info from the manufacturer.
It's not a huge deal that this is a PM vs a BMC, the only problem will
be that the driver will assume that the local MCs IPMB address is 0x20
unless you override that.
-corey
Stephen Horton wrote:
>
> Howdy OpenIPMI developers,
>
> I’m a newbie to doing this the hard way, so please forgive me. I have
> recently inherited an older CompactPCI board that has a Zircon PM
> (peripheral management controller that supports IPMI 1.0). Previous
> developers of this board did not do the work to get IPMI working, but
> I need to.
>
> The board has a Marvell System Controller (MV64462) and Freescale
> Powerpc MPC7448, and I have upgraded the board to run Powerpc Linux
> 2.6.24 using a device tree to control configuration (so
> CONFIG_PPC_OF=y). On this board, the Marv
>
> the sample script is simply blows up with "open failed" and no hint why
>
> ell I2c port is connected to port 1 (IPMB enabled port) of the
> ZirconPM device. There is a CPLD controlled switch that allows me to
> connect the Marvell I2c port to the SPD of the SDRAM Memory and read
> the DIMM specific information; thus, I know the Marvell I2c port is
> configured and working properly. Also, a member of my team was able to
> get FRU programmed into the device using a special I2c to USB adapter
> cable and writing the raw FRU to the device. And, I verified that both
> FRU and GetDeviceID can be read from my chassis management module over
> the CompactPCI midplane (so I know the device is at least somewhat
> working).
>
> Now, I am unable to get the ipmi_si driver to load. I am getting the
> following error (with some additional logs added by me):
>
> bus platform: add driver ipmi
>
> ipmi message handler version 39.1
>
> bus platform: add driver ipmi_si
>
> IPMI System Interface driver.
>
> __pci_register_driver: driver name is ipmi_si
>
> bus pci: add driver ipmi_si
>
> bus of_platform: add driver ipmi
>
> bus pci: remove driver ipmi_si
>
> bus of_platform: remove driver ipmi
>
> bus platform: remove driver ipmi_si
>
> ipmi_si: Unable to find any System Interface(s)
>
> bus platform: remove driver ipmi
>
> Closer inspection shows me that when the platform bus is probed, there
> is no match found for the device / driver. Below is the swag I took at
> adding a device tree node for this:
>
> ipmi {
>
> device_type = "ipmi";
>
> compatible = "ipmi-kcs";
>
> reg = <0xca8 8>;
>
> /* ports = <0xca2>; */
>
> reg-spacing = <4>;
>
> reg-size = <1>;
>
> reg-shift = <0>;
>
> };
>
> Does anyone have any experience and tips interfacing a Zircon with a
> Marvell controller? Do I need to have concerns about this device being
> a PM and not a BMC? Can anyone offer a device tree snippet to help me?
> I really don’t know what I’m doing here. I have a number of Zircon
> hardware centric reference documents, but very little software
> guidance on this. Corey, I have read your IPMI.txt file, and your
> Gentle Guide to IPMI, but forgive me for being slow.
>
> Regards,
>
> Stephen Horton
>
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>
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