[U-Boot] Boot failure with a AT91RM9200 based custom board

[Andreas Bießmann]

Dear Peter,

On 12.08.16 02:24, Peter Kardos wrote:
> Greetings,
> 
> I'm looking for a AT91RM9200 specialist as I've got stuck porting board
> support from a old u-boot (v1.1.4) to the latest stable (v2016.07)...
> 
> I'm using the at91r9200ek board as a template to get things running...

I haven't booted that board for a while ...

> With the patches i can get to the state below and here the board hangs.
> When patch 0004 is omitted, it seems the board doesn't boot at all (I'm
> basing this assumption on the current consumption of the system).

AFAIR the address 0x0 is mapped to the boot source until REMAP (also
depending on the BMS setting). It may be flash for your setup ...
writing the flash with a copy instruction should fail so this could be
the cause why it is not working.

> The console shows the following...
> initcall: 1001cce0
> 
> 
> U-Boot 2016.07-g95a02a7 (Aug 12 2016 - 01:43:34 +0200)
> 
> initcall: 1000b5bc
> U-Boot code: 10000000 -> 10030338  BSS: -> 1006B424
> initcall: 1000b3b4
> initcall: 1000bae8
> initcall: 1000b5e8
> DRAM:  initcall: 100010b8
> initcall: 1000b808
> Monitor len: 0006B424
> Ram size: 04000000
> Ram top: 24000000
> initcall: 1000b3dc
> initcall: 1000b564
> TLB table from 23ff0000 to 23ff4000
> initcall: 1000b3f4
> initcall: 1000b518
> Reserving 429k for U-Boot at: 23f84000
> initcall: 1000b4ec
> Reserving 384k for malloc() at: 23f24000
> initcall: 1000b6e8
> Reserving 80 Bytes for Board Info at: 23f23fb0
> initcall: 1000b3fc
> initcall: 1000b4b8
> Reserving 192 Bytes for Global Data at: 23f23ef0
> initcall: 1000b440
> initcall: 1000b414
> initcall: 1000b884
> initcall: 1000b7e0
> initcall: 1000b738
> 
> RAM Configuration:
> Bank #0: 20000000 64 MiB
> 
> DRAM:  64 MiB
> initcall: 1000b424
> New Stack Pointer is: 23f23ed0
> initcall: 1000b6ac
> initcall: 1000b640
> Relocation Offset is: 13f84000
> Relocating to 23f84000, new gd at 23f23ef0, sp at 23f23ed0

Could you please check, if the RAM initialisation is working properly?
AFAIR there was some problem with the u-boot RAM initialisation for this
board but never fixed (shame on me). Some set of known data and read
back before relocation should do the check.

Andreas

> Some detail about the board:
> AT91RM9200; external boot from /CS0
> 64Mbyte SDRAM (32bit)
> 32Mbyte NOR (16bit)
> Micrel KSZ8721
> 
> Any ideas, pointers, even flame is appreciated. If more info is needed
> I'm happy to deliver
> Thanx in advance.
> Cheers, Peter