[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.
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