Re: linuxbios and bochs

[Brian G. Rhodes]

Andrew,

I settled on linuxbios with etherboot and Adam Agnew's polled ide patch
for etherboot using mkelfImage to create the ELF binary with the kernel
and initrd.

Here is the code I added to handle PCI bridge cards in newpci.c in
pci_assign_irqs

else
        {
          u16 x;

pci_read_config_word(pdev, PCI_CLASS_DEVICE, &x);
          if (x == PCI_CLASS_BRIDGE_PCI)
    	{

printk_debug("PCI device is a bridge\n");
    	  // cross bridge
    	  if (pdev->children)
    	    {
    	      struct pci_dev *cdev;
    	      printk_debug("PCI devices behind bridge. Bus %d\n",
pdev->secondary);

cdev = pdev->children;
    	      while (cdev)
    		{
    		  pci_assign_irqs(pdev->secondary,
PCI_SLOT(cdev->devfn), pIntAtoD);
    		  cdev = cdev->next;
    		}
    	    }
    	}
        }

And included pci_ids.h...

I am still not getting interrupts on any cards I put in the PCI slot on
the EPIA.

Bus  0, device  20, function  0:
    PCI bridge: Hint Corp HB1-SE33 PCI-PCI Bridge (rev 20).
      Master Capable.  Latency=64.
  Bus  2, device   0, function  0:
    Multimedia controller: Sigma Designs, Inc. EM840x REALmagic DVD/MPEG-2
Audio/V.
      IRQ 5.
      Master Capable.  Latency=64.
      Non-prefetchable 32 bit memory at 0xfe700000 [0xfe7fffff].
  Bus  2, device   4, function  0:
    Multimedia controller: Sigma Designs, Inc. EM840x REALmagic DVD/MPEG-2
Audio/V.
      IRQ 5.
      Master Capable.  Latency=64.
      Non-prefetchable 32 bit memory at 0xfe800000 [0xfe8fffff].
  Bus  2, device   8, function  0:
    Multimedia controller: Sigma Designs, Inc. EM840x REALmagic DVD/MPEG-2
Audio/V.
      IRQ 5.
      Master Capable.  Latency=64.
      Non-prefetchable 32 bit memory at 0xfe900000 [0xfe9fffff].
  Bus  2, device  12, function  0:
    Multimedia controller: Sigma Designs, Inc. EM840x REALmagic DVD/MPEG-2
Audio/V.
      IRQ 5.
      Master Capable.  Latency=64.
      Non-prefetchable 32 bit memory at 0xfea00000 [0xfeafffff].

cat /proc/interrupts
           CPU0
  0:      38836          XT-PIC  timer
  1:          2          XT-PIC  keyboard
  2:          0          XT-PIC  cascade
  4:       8370          XT-PIC  serial
  5:          0          XT-PIC  Harmony, Harmony, Harmony, Harmony
 11:        216          XT-PIC  eth0
 14:        944          XT-PIC  ide0
 15:         15          XT-PIC  ide1
NMI:          0
ERR:          0

Brian G Rhodes
[e-mail]
[e-mail]
[phone]

On Wed, 11 Jun 2003, Andrew Ip wrote:
> Hi Brian,
> > The initrd is 3MB uncompressed.  I require a few utilities (bash, echo,
> > mount, tar, and umount).
>
> Have you tried busybox and uclibc?  You can safe quite alot storage area.
>
> -Andrew
>
> Cwlinux Limited
> Unit 202B 2/F Lai Cheong Factory Building,
> 479-479A Castle Peak Road,
> Lai Chi Kok, Kowloon,
> Hong Kong.
>
> Tel: [phone]
> Fax: [phone]
>
> For public pgp key, please obtain it from http://www.keyserver.net/en.