Re: [lkml] Linux 2.4.19-ac4

[Ian Soboroff <ian.soboroff@nist.gov>]

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Sorry for the delay in responding... I'm on travel and was
disconnected for a while there.

Alan Cox <alan@lxorguk.ukuu.org.uk> writes:

> On Tue, 2002-08-06 at 13:30, Ian Soboroff wrote:
> > 
> > Never mind.  It turns out I still have to pass 'ide0=ata66 ide1=ata66'
> > on the kernel command line.  2.4.19-ac4 boots for me!
> 
> Do you have ALI_INIT_CODE_TEST in the file defined or undef ?

I can't find this string anywhere in my source tree... I also looked
through the alim15x3.c code and didn't see anything like it.  So the
bit you have below doesn't seem to be protected by a #ifdef.

I haven't had the chance to do a recompile and reboot, but I will let
you know when I do.  By the way, there used to be a patch (which I've
attached) floating around the Fujitsu P-series community which
essentially disabled the writes to config byte 0x79 (which the
comments say is related to the southbridge).  The other workaround
people used was passing 'ide0=ata66 ide1=ata66' on the command line.

Anyway, I'll let you know if it works as soon as I get a chance to
test it.

ian

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*** linux/drivers/ide/alim15x3.c.orig	Tue Jan 29 20:22:49 2002
--- linux/drivers/ide/alim15x3.c	Tue Jan 29 20:23:50 2002
***************
*** 573,589 ****
  		/*
  		 * set south-bridge's enable bit, m1533, 0x79
  		 */
! 		pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
  		if (m5229_revision == 0xC2) {
  			/*
  			 * 1543C-B0 (m1533, 0x79, bit 2)
  			 */
! 			pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
  		} else if (m5229_revision >= 0xC3) {
  			/*
  			 * 1553/1535 (m1533, 0x79, bit 1)
  			 */
! 			pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
  		}
  		/*
  		 * Ultra66 cable detection (from Host View)
--- 573,589 ----
  		/*
  		 * set south-bridge's enable bit, m1533, 0x79
  		 */
! //		pci_read_config_byte(isa_dev, 0x79, &tmpbyte);
  		if (m5229_revision == 0xC2) {
  			/*
  			 * 1543C-B0 (m1533, 0x79, bit 2)
  			 */
! //			pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x04);
  		} else if (m5229_revision >= 0xC3) {
  			/*
  			 * 1553/1535 (m1533, 0x79, bit 1)
  			 */
! //			pci_write_config_byte(isa_dev, 0x79, tmpbyte | 0x02);
  		}
  		/*
  		 * Ultra66 cable detection (from Host View)