From: Andre Schwarz <andre.schwarz@matrix-vision.de>
To: Scott Wood <scottwood@freescale.com>
Cc: linuxppc-dev@ozlabs.org
Subject: Re: MPC8343 - "unable to handle paging request @ 0"
Date: Tue, 08 Apr 2008 15:50:26 +0200 [thread overview]
Message-ID: <47FB7822.6090401@matrix-vision.de> (raw)
In-Reply-To: <20080407161036.GA2688@loki.buserror.net>
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Scott Wood schrieb:
> On Sat, Apr 05, 2008 at 10:19:49AM +0200, André Schwarz wrote:
>
>> Kernel starts and crashes with "unable to handle kernel paging request @
>> 00000000".
>>
>> After turning debug on in some files I can see that the initrd memory
>> gets reserved and the dtb is parsed correctly.
>> PCI memory/io spaces are set up fine.
>>
>> At first I thought this is a problem with the device tree since the call
>> trace always points to "of_"-functions and "strcmp".
>>
>
> Could you provide this call trace?
>
> -Scott
> _______________________________________________
> Linuxppc-dev mailing list
> Linuxppc-dev@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-dev
>
Scott,
after building a debug kernel and attaching the bdi2000 it looks like
the crash occurs during "console_init()" ...
Since we're using a dtb I omit the "console=..." argument for the
kernel. Is this correct ?
If "console=/dev/ttyS0,115200N8" argument is given the serial console
stops working after console_init....
On other PowerPC system I could see something like this during boot :
-> find_legacy_serial_port()
stdout is /soc8568@e0000000/serial@4600
legacy_serial_console = 1
default console speed = 115340
<- find_legacy_serial_port()
Should I see this message also ?
Have I misconfigured anything ?
u-boot prints the following dtb :
...
aliases {
name = "aliases";
ethernet0 = "/soc8343@e0000000/ethernet@24000";
ethernet1 = "/soc8343@e0000000/ethernet@25000";
serial0 = "/soc8343@e0000000/serial@4500";
serial1 = "/soc8343@e0000000/serial@4600";
pci0 = "/pci@e0008500";
};
cpus {
name = "cpus";
#address-cells = <0x00000001>;
#size-cells = <0x00000000>;
PowerPC,8343@0 {
name = "PowerPC,8343";
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>;
};
};
memory {
name = "memory";
device_type = "memory";
reg = <0x00000000 0x20000000>;
};
soc8343@e0000000 {
name = "soc8343";
#address-cells = <0x00000001>;
#size-cells = <0x00000001>;
device_type = "soc";
compatible = "soc";
ranges = [00 00 00 00 e0 00 00 00 00 10 00 00];
reg = <0xe0000000 0x00000200>;
bus-frequency = <0x0fe502a8>;
wdt@200 {
device_type = "watchdog";
compatible = "mpc83xx_wdt";
reg = <0x00000200 0x00000100>;
};
i2c@3000 {
name = "i2c";
#address-cells = <0x00000001>;
#size-cells = <0x00000000>;
cell-index = <0x00000000>;
compatible = "fsl-i2c";
reg = <0x00003000 0x00000100>;
interrupts = <0x0000000e 0x00000008>;
interrupt-parent = <0x00000001>;
dfsrr;
};
i2c@3100 {
name = "i2c";
#address-cells = <0x00000001>;
#size-cells = <0x00000000>;
cell-index = <0x00000001>;
compatible = "fsl-i2c";
reg = <0x00003100 0x00000100>;
interrupts = <0x0000000f 0x00000008>;
interrupt-parent = <0x00000001>;
dfsrr;
};
spi@7000 {
name = "spi";
cell-index = <0x00000000>;
compatible = "fsl,spi";
reg = <0x00007000 0x00001000>;
interrupts = <0x00000010 0x00000008>;
interrupt-parent = <0x00000001>;
mode = "cpu";
};
usb@22000 {
name = "usb";
compatible = "fsl-usb2-mph";
reg = <0x00022000 0x00001000>;
#address-cells = <0x00000001>;
#size-cells = <0x00000000>;
interrupt-parent = <0x00000001>;
interrupts = <0x00000027 0x00000008>;
phy_type = "ulpi";
port0;
};
mdio@24520 {
name = "mdio";
#address-cells = <0x00000001>;
#size-cells = <0x00000000>;
compatible = "fsl,gianfar-mdio";
reg = <0x00024520 0x00000020>;
ethernet-phy@0 {
cell-index = <0x00000000>;
interrupt-parent = <0x00000001>;
interrupts = <0x00000016 0x00000008>;
reg = <0x00000000>;
device_type = "ethernet-phy";
linux,phandle = <0x00000002>;
};
ethernet-phy@1 {
cell-index = <0x00000001>;
interrupt-parent = <0x00000001>;
interrupts = <0x00000017 0x00000008>;
reg = <0x00000001>;
device_type = "ethernet-phy";
linux,phandle = <0x00000003>;
};
};
ethernet@24000 {
cell-index = <0x00000000>;
device_type = "network";
model = "TSEC";
compatible = "gianfar";
reg = <0x00024000 0x00001000>;
local-mac-address = [b6 b4 45 eb fb c0];
interrupts = [00 00 00 20 00 00 00 08 00 00 00
21 00 00 00 08 00 00 00 22 00 00 00 08];
interrupt-parent = <0x00000001>;
phy-handle = <0x00000002>;
linux,network-index = <0x00000000>;
};
ethernet@25000 {
cell-index = <0x00000001>;
device_type = "network";
model = "TSEC";
compatible = "gianfar";
reg = <0x00025000 0x00001000>;
local-mac-address = [b6 b4 45 eb fb c2];
interrupts = [00 00 00 23 00 00 00 08 00 00 00
24 00 00 00 08 00 00 00 25 00 00 00 08];
interrupt-parent = <0x00000001>;
phy-handle = <0x00000003>;
linux,network-index = <0x00000001>;
};
serial@4500 {
cell-index = <0x00000000>;
device_type = "serial";
compatible = "ns16550";
reg = <0x00004500 0x00000100>;
clock-frequency = <0x0fe502a8>;
interrupts = <0x00000009 0x00000008>;
interrupt-parent = <0x00000001>;
};
serial@4600 {
cell-index = <0x00000001>;
device_type = "serial";
compatible = "ns16550";
reg = <0x00004600 0x00000100>;
clock-frequency = <0x0fe502a8>;
interrupts = <0x0000000a 0x00000008>;
interrupt-parent = <0x00000001>;
};
pic@700 {
interrupt-controller;
#address-cells = <0x00000000>;
#interrupt-cells = <0x00000002>;
reg = <0x00000700 0x00000100>;
device_type = "ipic";
linux,phandle = <0x00000001>;
};
};
....
regards,
Andre
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next prev parent reply other threads:[~2008-04-08 13:50 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-05 8:19 MPC8343 - "unable to handle paging request @ 0" André Schwarz
2008-04-07 16:10 ` Scott Wood
2008-04-08 8:51 ` Andre Schwarz
2008-04-08 16:43 ` Scott Wood
2008-04-08 13:50 ` Andre Schwarz [this message]
2008-04-08 16:48 ` Scott Wood
2008-04-08 19:59 ` André Schwarz
2008-04-09 12:54 ` Andre Schwarz
2008-04-09 18:57 ` Scott Wood
2008-04-09 19:09 ` Andre Schwarz
2008-04-09 19:15 ` Scott Wood
2008-04-10 9:00 ` Andre Schwarz
2009-12-04 22:55 ` MPC8343EA Linux DTS file agnel
2009-12-04 22:56 ` agnel
2009-12-04 23:39 ` Kim Phillips
[not found] ` <72d214170912041543g207837a5v67c9bb157e0a2c8b@mail.gmail.com>
2009-12-05 1:47 ` Kim Phillips
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