MPC8641 based custom board Kernel stuck at 1000Mhz core clock
sanjeev sharma
sanjeevsharmaengg at gmail.com
Thu May 1 23:52:12 EDT 2014
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: *
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> #################################################################
> ##################################################
> 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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