[U-Boot-Users] u-boot for MPC8266-PCI board

[Rune Torgersen]

First off.
The MPC8260ADS config files will not run on a MPC8266ADS.
Most likely culprit here (Remember seeing the same thing when  dd ther
initial port) is that it hangs when trying to initialise the (nonexisting)
4MB og SDRAM on the local bus that the MPC8260 has, and the MPC8266 doesn't.

The reason the config file for the MPC8266ADS don't give any output is most
likely because it loads at adifferent initial configuration address. (See
top of include/configs/MPC8266ADS.h for details)

To get it to work the way it is; Write the whole image to the start of the
FLASH (on a board with JP3 in 2-3 position this is 0xFF800000). Then set JP3
in the 1-2 position. The flash start and boot at 0xFE000000.

> -----Original Message-----
> From: Thomas Schäfer [mailto:tschaefer at giga-stream.de] 
> Sent: Friday, July 25, 2003 04:37
> To: u-boot-users at lists.sourceforge.net
> Subject: [U-Boot-Users] u-boot for MPC8266-PCI board
> 
> 
> Hi all,
> 
> I'm trying to run u-boot on our MPC8266-PCI board. I'm using 
> the latest CVS tree 0.4.5 from sourceforge. I found 
> MPC8260ADS.h and MPC8266ADS.h in the configs directory. 
> Trying the MPC8266ADS configuration and starting it ends with 
> no console output at all. Trying the MPC8260ADS configuration 
> with CONFIG_ADSTYPE=CFG_8266ADS ends with a bus fault after 
> some console outputs (see below). What am I doing wrong?
> 
> U-Boot 0.4.5 (Jul 25 2003 - 11:18:40)
> 
> MPC8260 Reset Status: External Soft, External Hard
> 
> MPC8260 Clock Configuration
>  - Bus-to-Core Mult 3x, VCO Div 2, 60x Bus Freq  33-100, Core 
> Freq 100-300
>  - dfbrg 1, corecnf 0x08, busdf 3, cpmdf 1, plldf 0, pllmf 1
>  - vco_out  266666664, scc_clk   66666666, brg_clk   16666666
>  - cpu_clk  199999998, cpm_clk  133333332, bus_clk   66666666
> 
> CPU:   MPC8260 (HiP4 Rev 14, Mask A.0(A) 2K25A) at 199.999 MHz
> Board: Motorola MPC8266ADS
> I2C:   ready
> DRAM:  16 MB
> FLASH: Bus Fault @ 0x00feac3c, fixup 0x00000000
> Machine check in kernel mode.
> Caused by (from msr): regs 00f71e10 Unknown values in msr
> NIP: 00FEAC3C XER: 20000000 LR: 00FD6E94 REGS: 00f71e10 TRAP: 
> 0200 DAR:
> 00000000MSR: 00003000 Eª: 0 PR: 0 FP: 1 ME: 1 IR/DR: 00
> 
> GPR00: 00500092 00F71F00 04280112 00000000 00FD6E88 Bus Fault 
> @ 0x00fe73d0, fixup 0x00000000 Machine check in kernel mode. 
> Caused by (from msr): regs 00f71af8 Unknown values in msr
> NIP: 00FE73D0 XER: 00000000 LR: 00FE7360 REGS: 00f71af8 TRAP: 
> 0200 DAR:
> 00000000MSR: 00003000 EE: 0 PR: 0 FP: 1 ME: 1 IR/DR: 00
> 
> Any hints would be appreciated.
> 
> Best regards,
> 
> Thomas Schäfer
> 
> ____________________________________
> 
> GIGA STREAM GmbH
> 
> Konrad-Zuse-Str. 7
> 66115 Saarbrücken
> 
> Tel.: + 49 (0)681 / 95916 - 203
> Fax:  + 49 (0)681 / 95916 - 100
> E-mail: tschaefer at giga-stream.de
> 
> 
> 
> 
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_072303_01/01
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