Tor Krill schrieb: 

On 4/3/2008, "Andre Schwarz" <andre.schwarz@matrix-vision.de> wrote:

  
All,
    

Hi Andre and others,

  
currently I'm trying to bring up a mpc8343 based system.
Latest u-boot v1.3.2 is running fine.

The MPC8343 has a single 32-Bit PCI Bus running at 66MHz.
Connected are a FPGA (IDSEL 11 + IRQ0) and a miniPCI Slot (IDSEL12 + 
IRQ1).                                    

Unfortunately the kernel panics during/after PCI setup.
    

Not sure if this is related. But i got strange problems with PCI after
the patch "Add CONFIG_PCI_SKIP_HOST_BRIDGE config option"
(55774b512fdf63c..) was added.

My symptoms where missed interrupts on sata dma in Linux. U-boot where
however fine. Adding the above config solved my problems. Not really
sure why i experienced this. We have no PCI bridge on our board.

/Tor
Tor,

thanks for your reply.

I'm also not sure if it's a PCI issue anymore ...

Kernel config has been reduced to a minimum : no PCI, no netwoking, i2c, spi ...
dts has been reduced to the CPU, soc and ipic.

U-Boot fills out dtb correctly - as far as I can see.

Kernel crashes on various "of_" functions.

There's also strange messages :
WARNING: Estimating decrementer frequency (not found)
WARNING: Estimating processor frequency (not found)

They're coming from "generic_calibrate_decr()" in kernel/time.c.

Looks like there something basically wrong with my dtb location/processing, since the "timebase-frequency" is present and valid :

        cpus {
                #address-cells = <0x00000001>;
                #size-cells = <0x00000000>;
                PowerPC,8343@0 {
                        device_type = "cpu";
                        reg = <0x00000000>;
                        d-cache-line-size = <0x00000020>;
                        i-cache-line-size = <0x00000020>;
                        d-cache-size = <0x00008000>;
                        i-cache-size = <0x00008000>;
                        timebase-frequency = <0x03f940aa>;
                        bus-frequency = <0x0fe502a8>;
                        clock-frequency = <0x17d783fc>;
                };
        };


Any hints ?


regards,
Andre

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