[U-Boot] U-Boot for AMCC Sequoia Board (PPC440EPX) fails to boot for version 2009.11-rc1 onwards

[Stefan Roese <sr@denx.de>]

Hi Doug,

On Thursday 08 September 2011 22:24:51 Hayes,Doug wrote:
> Has anyone tried the latest U-Boot on the above board lately?  I am
> building the U-Boot image with "sequoia_config" option and have found it
> stops booting after version 2009_08.  I get no text output for the
> versions that I have tried:  2009.11-rc1, 2009.11, 2010.03. latest
> (2011.06).  There were a lot of "4xx" changes in 2009.11-rc1 so perhaps
> one of those has changed how my board comes up.  I am just starting to
> compare code files for differences in order to track it down.
> 
> I am compiling with this ELDK "gcc version 4.0.0 (DENX ELDK 4.1.4.0.0)".
> 
> I anyone has an idea why my U-Boot hangs please let me know.  Thanks for
> any info.

I do test on Sequoia from time-to-time. No problems here:

U-Boot 2011.06-00588-g49ea2e3 (Sep 09 2011 - 08:20:40)

CPU:   AMCC PowerPC 440EPx Rev. A at 330 MHz (PLB=132 OPB=66 EBC=66 PCI=33 
MHz)
       Security/Kasumi support
       Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
       Internal PCI arbiter enabled, PCI async ext clock used
       32 kB I-Cache 32 kB D-Cache
Board: Sequoia - AMCC PPC440EPx Evaluation Board, Rev. F, PCI-Async=33 MHz
I2C:   ready
DRAM:  256 MiB
Flash: 64 MiB
NAND:  32 MiB
PCI:   Bus Dev VenId DevId Class Int
USB:   Host(int phy) Device(ext phy)
Net:   ppc_4xx_eth0, ppc_4xx_eth1

Type run flash_nfs to mount root filesystem over NFS

Hit any key to stop autoboot:  0 
=> 


This is with ELDK 4.2 (GCC 4.2.2).


On Thursday 08 September 2011 23:31:18 Hayes,Doug wrote:
> Some extra info.  U-Boot dies in get_async_pci_freq() (new feature) called
> from board_early_init_f() when trying to read a byte from 0xC0000005
> (CONFIG_SYS_BCSR_BASE + 5).

Perhaps your board is too old and doesn't support reading these CPLD 
registers. On mine I get:

=> md.b c0000000 20
c0000000: 0f 00 c0 07 00 00 00 80 00 20 00 00 00 00 00 00    ......... ......
c0000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................

What do you get on your "old", working U-Boot?


Best regards,
Stefan

--
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: office at denx.de