Something seems to be causing a conflict between the updated SM502 audio driver (6.2) and Wazp3D (52.1).
Before I updated to the new SM502 audio driver, I had installed Wazp3D (renaming the old Warp3D library "warp3D.old.library" and renaming wazp3D.library warp3D.library as per instructions). Audio worked under the older SM502 audio driver.
After updating to the new audio driver, two things happened. First, I had no audio, no matter how many times I rebooted (warm and cold boots). Second, after a cold boot, Workbench would appear in a 640x480x8bit screen. After a warm reset, my screenmode would return to its 1280x1024x32 screen.
I tried deleting non-SM502 files from AHI and audiomodes drawers. I tried setting the executable flags on the SM502 files. I checked and rechecked the AHI prefs settings. No sound came from my SAM460ex. Finally, I restored my old Warp3D library, deleting the wazp3D library. After a reboot, I had sound.
EAX1600 PCIE 256MB video
sii680 PCI card
Software installed on SYS: partition
OS4.1 update 4 (fairly fresh install on a SFS partition alongside a 1 GB SWAP and JXFS Work partition)
wazp3D (52.1) deleted for the present
SM502 audio (6.2) active
Timberwolf (latest beta)
I will attempt a serial capture when I get home from work if that would be helpful for a diagnosis.
Edit 04/17/2012U-Boot 2010.06.05a (Jan 30 2012 - 16:06:56)
CPU: AMCC PowerPC 460EX Rev. B at 1017.500 MHz (PLB=203 OPB=101 EBC=101)
No Security/Kasumi support
Bootstrap Option H - Boot ROM Location I2C (Addr 0x52)
Internal PCI arbiter enabled
32 kB I-Cache 32 kB D-Cache
Board: Sam460ex, PCIe 4x + SATA-2
DRAM: 512 MiB (ECC not enabled, 407 MHz, CL4)
PCI: Bus Dev VenId DevId Class Int
00 04 1095 0680 0104 00
00 06 126f 0501 0380 00
PCIE1: successfully set as root-complex
02 00 1002 71c3 0300 ff
FPGA: Revision 03 (2010-10-07)
I tried booting with debug level set at 1 and later at level 2. I did not get any additional information captured; however, my SAM460ex is now booting into the 640x480x8 screenmode with every cold boot. I reset the debug level to 0. It still booted into 640x480x8. I removed the SM502 audio driver, and had no more problems booting into 640x480x8.