RE: MPC8641 based custom board Kernel stuck at 1000Mhz core clock
curieux.khetan@gmail.com
curieux.khetan at gmail.com
Sat May 3 12:40:04 EDT 2014
hi thanks for your reply. the problem is still there. At 800MHZ core its working fine but for 1Ghz its still happening.
Any suggestion or check point I can monitor.
From: sanjeev sharma
Sent: 02 May 2014 09:22
To: Ashish
CC: Valdis Kletnieks; scottwood at freescale.com; linuxppc-dev at lists.ozlabs.org; kernelnewbies
Subject: Re: MPC8641 based custom board Kernel stuck at 1000Mhz core clock
Hello Ashish,
is this issue resolved and is this always happening when you are changing core to 1Ghz because i am confused here with sometime Keyword.
Regards
Sanjeev Sharma
On Fri, Apr 4, 2014 at 1:12 PM, Ashish <curieux.khetan at gmail.com> wrote:
On Thursday 03 April 2014 08:55 AM, sanjeev sharma wrote:
Are you able to capture kernel logs ?
Regards
Sanjeev Sharma
On Thu, Mar 27, 2014 at 10:01 PM, <Valdis.Kletnieks at vt.edu> wrote:
On Thu, 27 Mar 2014 16:04:37 +0530, Ashish said:
> Hi,
>
> I am using MPC8641-HPCN based custom board and able to boot linux at
> MPX clock 400Mhz and core clock 800mhz. When I am increasing core
> frequency ie MPX clock at 400Mhz and core at 1Ghz, kernel stuck.
Step 0: Prove to us that your core actually runs reliable and stably at 1Ghz.
Step 1: Figure out *where* it gets stuck. If you have earlyprintk working on
your board, adding 'initcall_debug ignore_loglevel' to the kernel cmdline often
helps track down where a kernel hangs during boot.
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Hi,
Does kernel logs means debugging information that kernel prints while booting using printk or it is something else?
Here is kernel boot logs that kernel printed while booting...
U-Boot 2013.04 (Jan 27 2014 - 11:21:21)
Unicore software on multiprocessor system!!
To enable mutlticore build define CONFIG_MP
CPU: 8641, Version: 2.1, (0x80900021)
Core: E600 Core 0, Version: 2.2, (0x80040202)
Clock Configuration:
CPU:1000 MHz, MPX:400 MHz
DDR:200 MHz (400 MT/s data rate), LBC:25 MHz
L1: D-cache 32 KB enabled
I-cache 32 KB enabled
L2: 512 KB enabled
Board: MPC8641-HPCN
I2C: ready
DRAM: 512 MiB
SDRAM test phase 1:
SDRAM test phase 2:
SDRAM test passed.
Flash: 16 MiB
EEPROM: NXID v1
In: serial
Out: serial
Err: serial
Net: eTSEC1, eTSEC2, eTSEC3, eTSEC4 [PRIME]
Hit any key to stop autoboot:
Speed: 1000, full duplex
Using eTSEC4 device
TFTP from server 192.168.10.1; our IP address is 192.168.10.2
Filename 'uRamdisk'.
Load address: 0x600000
Loading: * #################################################################
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##################################################
13.1 MiB/s
done
Bytes transferred = 22680188 (15a127c hex)
Speed: 1000, full duplex
Using eTSEC4 device
TFTP from server 192.168.10.1; our IP address is 192.168.10.2
Filename 'uImage'.
Load address: 0x16000000
Loading: * #################################################################
#################################################################
#######################################
14 MiB/s
done
Bytes transferred = 2476304 (25c910 hex)
Speed: 1000, full duplex
Using eTSEC4 device
TFTP from server 192.168.10.1; our IP address is 192.168.10.2
Filename 'mpc8641_hpcn.dtb'.
Load address: 0x14000000
Loading: * #
2.6 MiB/s
done
Bytes transferred = 5540 (15a4 hex)
## Booting kernel from Legacy Image at 16000000 ...
Image Name: Linux-3.13.6
Image Type: PowerPC Linux Kernel Image (gzip compressed)
Data Size: 2476240 Bytes = 2.4 MiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
## Loading init Ramdisk from Legacy Image at 00600000 ...
Image Name: rootfs
Image Type: PowerPC Linux RAMDisk Image (gzip compressed)
Data Size: 22680124 Bytes = 21.6 MiB
Load Address: 00000000
Entry Point: 00000000
Verifying Checksum ... OK
## Flattened Device Tree blob at 14000000
Booting using the fdt blob at 0x14000000
Uncompressing Kernel Image ... OK
Loading Ramdisk to 1e923000, end 1fec423c ... OK
Loading Device Tree to 007fb000, end 007ff5a3 ... OK (some times it stucking here)
Using MPC86xx HPCN machine description
Total memory = 512MB; using 1024kB for hash table (at cff00000)
Linux version 3.13.6 (ashish at ashish-VirtualBox) (gcc version 4.7.2 (GCC) ) #8 Sat Mar 29 10:31:58 IST 2014
Found initrd at 0xde923000:0xdfec423c
bootconsole [udbg0] enabled
setup_arch: bootmem
mpc86xx_hpcn_setup_arch()
MPC86xx HPCN board from Freescale Semiconductor
arch: exit
Zone ranges:
DMA [mem 0x00000000-0x1fffffff]
Normal empty
HighMem empty
Movable zone start for each node
Early memory node ranges
node 0: [mem 0x00000000-0x1fffffff] (some times here)
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