2010-07-04 22:30:50     cpufreq on bf533

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2010-07-04 22:30:50     cpufreq on bf533

nike tian (CHINA)

Message: 90882   


I was using CPU Frequence Scaling  function on kernel 2008R1.1,but when I download the uImage to my BF533 stamp board,


some unknown messgae display in the UART


note:For some reason,I must use version 2008R1.1 kernel.

## Booting image at 01000000 ...

   Image Name:   uClinux Kernel and ext2

   Image Type:   Blackfin Linux Kernel Image (gzip compressed)

   Data Size:    2497474 Bytes =  2.4 MB

   Load Address: 00001000

   Entry Point:  001a4000

   Verifying Checksum ... OK

   Uncompressing Kernel Image ... OK

Starting Kernel at = 1a4000

Linux version (root@localhost.localdomain) (gcc version 4.1.2 (ADI svn)) #2 Thu Jul 1 17:40:19 CST 2010

Hardware Trace Active and Enabled

Blackfin support (C) 2004-2007 Analog Devices, Inc.

Compiled for ADSP-BF533 Rev 0.5

Warning: Compiled for Rev 5, but running on Rev 6

Blackfin Linux support by   blackfin.uclinux.org/

Processor Speed: 400 MHz core clock and 133 MHz System Clock

Board Memory: 64MB

Kernel Managed Memory: 64MB

Memory map:

  text      = 0x00001000-0x00139b50

  rodata    = 0x0013a000-0x0018ff8c

  data      = 0x00190000-0x001a4000

    stack   = 0x00190000-0x00192000

  init      = 0x001a4000-0x001b9000

  bss       = 0x001b9000-0x001c8a7c

  available = 0x001c8a7c-0x03b00000

  rootfs    = 0x03b00000-0x03f00000

  DMA Zone  = 0x03f00000-0x04000000

Instruction Cache Enabled

Data Cache Enabled (write-back)

Built 1 zonelists.  Total pages: 14986

Kernel command line: ethaddr=00:11:22:33:11:22 root=/dev/mtdblock2 rw

Configuring Blackfin Priority Driven Interrupts

PID hash table entries: 256 (order: 8, 1024 bytes)

Dentry cache hash table entries: 8192 (order: 3, 32768 bytes)

Inode-cache hash table entries: 4096 (order: 2, 16384 bytes)

Memory available: 58012k/65536k RAM, (84k init code, 1250k kernel code, 488k data, 1024k dma, 584k reserved)

Blackfin Scratchpad data SRAM: 4 KB

Blackfin Data A SRAM: 16 KB (16 KB free)

Blackfin Data B SRAM: 16 KB (16 KB free)

Blackfin Instruction SRAM: 64 KB (55 KB free)

Security Framework v1.0.0 initialized

Mount-cache hash table entries: 512

NET: Registered protocol family 16

Blackfin GPIO Controller

Blackfin DMA Controller

stamp_init(): registering device resources

SCSI subsystem initialized

usbcore: registered new interface driver usbfs

usbcore: registered new interface driver hub

usbcore: registered new device driver usb

NET: Registered protocol family 2

IP route cache hash table entries: 1024 (order: 0, 4096 bytes)

TCP established hash table entries: 2048 (order: 2, 16384 bytes)

TCP bind hash table entries: 2048 (order: 1, 8192 bytes)

TCP: Hash tables configured (established 2048 bind 2048)

TCP reno registered


....unknown messages.....




2010-07-04 23:19:38     Re: cpufreq on bf533

Mike Frysinger (UNITED STATES)

Message: 90883   


there is no 2008R1.1 release, but as i already said, use 2009R1.1 if you want cpufreq support




2010-07-04 23:37:14     Re: cpufreq on bf533

nike tian (CHINA)

Message: 90884   


Thank for you reply,Mike.


My packet is uClinux-dist-2008R1-RC8.tar.bz2.  I am using a vendor named Rowetel,the do some patch on your kernel version 2007R1 and 2008R1-RC8,but then did not support the patch of version 2009R1.1.That is why I cant not use version 2009R1.1.


So,is there any way to make version 2008R1-RC8 support cpufreq?Or what can I do for the above error?




2010-07-04 23:47:59     Re: cpufreq on bf533

Mike Frysinger (UNITED STATES)

Message: 90885   


then you should be bugging Rowetel for using outdated software.  we typically only support the last release (2009R1.1).


did you check to see if the error only occurs when enabling cpufreq support ?




2010-07-05 00:02:12     Re: cpufreq on bf533

nike tian (CHINA)

Message: 90886   


Yes,when i disable the cpufreq,it works well!