On Tue, May 27, 2008 at 10:27 PM, Joseph Smith <joe@settoplinux.org> wrote:

Hello,
Now that I got coreboot running on the IP1000, I finally am able to test
out the so-dimm socket. I maxed out the slot with a big 512MB so-dimm. I
don't think the "for" statement we came up with is working correctly:

       /* NOTE: Dual-sided ready. */
       read32(0 + addr_offset);
       for (i = 0; i < 4; i++) {
               reg8 = pci_read_config8(ctrl->d0, DRB + i);
               if (reg8 != reg8_2)
                       read32(reg8 * 32 * 1024 * 1024);
               reg8_2 = reg8;
       }

The memory is detecting correctly, but I don't think coreboot can find the
end of the side of the so-dimm, thus causing a lockup after Jumping to
coreboot. I think I need to setup something more like the E7501
do_ram_command() but I want to keep it simple. Here is the bootlog, Help??


You're right, change

read32(reg8 * 32 * 1024 * 1024);

to

read32((reg8 * 32 * 1024 * 1024) + addr_offset);

also, make sure reg8_2 is 0'd before entering the for loop.

-Corey