[U-Boot] MPC8280 Clock configuration for U-boot

GurumurthyGowdar gurumurthy.gm at rediffmail.com
Thu Aug 6 20:56:44 CEST 2009


Dear all,
              i have an issue with the clock configuration for MPC8280 for U-boot 1.3.1, 

the following is the message when u-boot booted.

U-Boot 1.3.1 (Jul 27 2009 - 17:27:10)

MPC8260 Reset Status: External Soft, External Hard

MPC8260 Clock Configuration
 - Bus-to-Core Mult 3x, VCO Div 4, 60x Bus Freq  16-50 , Core Freq  50-150
 - dfbrg 1, corecnf 0x10, busdf 4, cpmdf 1, plldf 0, pllmf 4, pcidf 3
 - vco_out  500000000, scc_clk  125000000, brg_clk   31250000
 - cpu_clk  300000000, cpm_clk  250000000, bus_clk  100000000

CPU:   MPC8260 (HiP7 Rev 14, Mask 1.0 1K49M) at 300 MHz
Board: MPC8280 Based Remote IO CARD.SLN Technologies Pvt Ltd.
I2C:   ready
DRAM:  512 MB
FLASH: 256.5 MB
*** Warning - bad CRC, using default environment

In:    serial
Out:   serial
Err:   serial
Net:   FCC2 ETHERNET
RIO->            

in terms of hardware i have configured as per the clock configuration but if we see the 
above message i have a doubt  regarding the 60x Bus Freq 16-50 --> but i have set 100 
MHZ, Core Freq 50-150 , i have set for 300 MHZ by checking the MPC8280EC i have 
configured the clock settings.


please let me know whether i am doing anything wrong or it is correct.  but why it is 
printing wrong in u-boot message.

also i checked speed.c ,

if anyone ported U-boot 1.3.1 on MPC8280 send me the u-boot messages when booted or 
power on.

With Regards,
Gurumurthy G.M.




More information about the U-Boot mailing list