Linux starting stuck at clockevent: decrementer
Yao, Lixin
Lixin.Yao at HSTX.com
Tue Dec 9 06:40:36 EST 2008
Hi, All,
I am new to the mailing list. First time posting.
I am trying to run Linux-2.6.28-rc5 on a board with MPC8248 processor.
No PCI functions are used. The board is a known good board. It ran
vxWorks sucessfully before. I based my configuration on MPC8272ADS (the
Freescale board). I turned on early debugging. I use U-Boot to load
Linux image to 0x800000, and load DTB to 0xB00000. Total memory is 64MB.
A command line is passed to kernel for it to run NFS. Somehow, kernel
starting gets stuck after printing this line:
clockevent: decrementer mult[444] shift[16] cpu[0]
Does anybody have any hint?
Here is the starting printing:
Using FCC1 ETHERNET device
TFTP from server 10.15.34.196; our IP address is 172.20.16.150; sending
through
gateway 172.20.16.1
Filename 'eclipse/uImage'.
Load address: 0x800000
Loading:
#################################################################
#####################################
done
Bytes transferred = 1491457 (16c201 hex)
Using FCC1 ETHERNET device
TFTP from server 10.15.34.196; our IP address is 172.20.16.150; sending
through
gateway 172.20.16.1
Filename 'eclipse/tr5000v2.dtb'.
Load address: 0xb00000
Loading: #
done
Bytes transferred = 2965 (b95 hex)
## Booting kernel from Legacy Image at 00800000 ...
Image Name: Linux-2.6.28-rc5-01296-g7b9a403-
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 1491393 Bytes = 1.4 MB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
Uncompressing Kernel Image ... OK
## Flattened Device Tree blob at 00b00000
Booting using the fdt blob at 0xb00000
Loading Device Tree to 007fc000, end 007ffb94 ... OK
id mach(): done
MMU:enter
MMU:hw init
MMU:mapin
MMU:setio
MMU:exit
Using HSTX tr5000v2 machine description
Linux version 2.6.28-rc5-01296-g7b9a403-dirty (lyao01 at lyao01-desktop)
(gcc versi
on 4.2.2) #1 Mon Dec 8 12:02:39 EST 2008
console [udbg0] enabled
setup_arch: bootmem
tr5000v2_setup_arch()
tr5000v2_setup_arch(), finish
arch: exit
Top of RAM: 0x4000000, Total RAM: 0x4000000
Memory hole size: 0MB
Zone PFN ranges:
DMA 0x00000000 -> 0x00004000
Normal 0x00004000 -> 0x00004000
Movable zone start PFN for each node
early_node_map[1] active PFN ranges
0: 0x00000000 -> 0x00004000
On node 0 totalpages: 16384
free_area_init_node: node 0, pgdat c02fad10, node_mem_map c0323000
DMA zone: 128 pages used for memmap
DMA zone: 0 pages reserved
DMA zone: 16256 pages, LIFO batch:3
Normal zone: 0 pages used for memmap
Movable zone: 0 pages used for memmap
Built 1 zonelists in Zone order, mobility grouping on. Total pages:
16256
Kernel command line: root=/dev/nfs rw
nfsroot=10.15.34.196:/home/lyao01/work/tar
get_odu_100
ip=172.20.16.150:10.15.34.196:172.20.16.1:255.255.255.0:tr5000v2:eth
0:off
PID hash table entries: 256 (order: 8, 1024 bytes)
time_init: decrementer frequency = 16.666666 MHz
time_init: processor frequency = 266.666664 MHz
clocksource: timebase mult[f00000a] shift[22] registered
clockevent: decrementer mult[444] shift[16] cpu[0]
This is the dts file:
/dts-v1/;
/ {
model = "TR5000V2";
compatible = "fsl,tr5000v2";
#address-cells = <1>;
#size-cells = <1>;
cpus {
#address-cells = <1>;
#size-cells = <0>;
PowerPC,8248 at 0 {
device_type = "cpu";
reg = <0>;
d-cache-line-size = <32>;
i-cache-line-size = <32>;
d-cache-size = <16384>;
i-cache-size = <16384>;
timebase-frequency = <0>;
clock-frequency = <0>;
};
};
memory {
device_type = "memory";
reg = <0 0>;
};
soc at f0000000 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "fsl,mpc8248-immr", "fsl,pq2-soc";
ranges = <0x00000000 0xf0000000 0x00053000>;
// Temporary until code stops depending on it.
device_type = "soc";
// Temporary -- will go away once kernel uses ranges for
get_immrbase().
reg = <0xf0000000 0x00053000>;
cpm at 119c0 {
#address-cells = <1>;
#size-cells = <1>;
#interrupt-cells = <2>;
compatible = "fsl,mpc8248-cpm", "fsl,cpm2";
// This is from EP8248E, MPC8272ADS does not use, don't use
either
// "simple-bus";
reg = <0x119c0 0x30>;
ranges;
muram {
#address-cells = <1>;
#size-cells = <1>;
ranges = <0 0 0x10000>;
data at 0 {
compatible =
"fsl,cpm-muram-data";
reg = <0 0x2000 0x9800 0x800>;
};
};
brg at 119f0 {
compatible = "fsl,mpc8248-brg",
"fsl,cpm2-brg",
"fsl,cpm-brg";
reg = <0x119f0 0x10 0x115f0 0x10>;
};
/* Monitor port/SMC1 */
smc1: serial at 11a80 {
device_type = "serial";
compatible = "fsl,mpc8248-smc-uart",
"fsl,cpm2-smc-uart";
reg = <0x11a80 0x20 0x87fc 2>;
interrupts = <4 8>;
interrupt-parent = <&PIC>;
fsl,cpm-brg = <7>;
fsl,cpm-command = <0x1d000000>;
linux,tr5000v2-label = "SMC1";
};
eth0: ethernet at 11300 {
device_type = "network";
compatible = "fsl,mpc8248-fcc-enet",
"fsl,cpm2-fcc-enet";
reg = <0x11300 0x20 0x8400 0x100 0x11390
1>;
local-mac-address = [ 00 00 00 00 00 00
];
interrupts = <32 8>;
interrupt-parent = <&PIC>;
// Don't use this for now
// phy-handle = <&PHY0>;
linux,network-index = <0>;
fsl,cpm-command = <0x12000300>;
};
};
PIC: interrupt-controller at 10c00 {
#interrupt-cells = <2>;
interrupt-controller;
reg = <0x10c00 0x80>;
compatible = "fsl,mpc8248-pic", "fsl,cpm2-pic";
};
chosen {
linux,stdout-path = "/soc/cpm/serial at 11a80";
};
};
Attached is my .config.
<<config>>
Thank you.
Lixin Yao
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