From: KAI.HSU From http://bugzilla.kernel.org/show_bug.cgi?id=6358 The alim15x3.c havn't been update for 3 years. Recently when we use this "ULI M1573" south bridge chip found that can't mount CDROM(VCD) smoothly, must waiting for a long time. After I check the "ULI M1573" south bridge datasheet, I found the reason. The reason is the "ULI M1573" version in the Linux is "0xC7" not "0xC4" anymore So I was modified the source than it was successed. Cc: Bartlomiej Zolnierkiewicz Cc: Alan Cox Signed-off-by: Andrew Morton --- drivers/ide/pci/alim15x3.c | 2 ++ 1 files changed, 2 insertions(+) diff -puN drivers/ide/pci/alim15x3.c~alim15x3-uli-m-1573-south-bridge-support drivers/ide/pci/alim15x3.c --- devel/drivers/ide/pci/alim15x3.c~alim15x3-uli-m-1573-south-bridge-support 2006-04-09 21:31:51.000000000 -0700 +++ devel-akpm/drivers/ide/pci/alim15x3.c 2006-04-09 21:34:44.000000000 -0700 @@ -731,6 +731,8 @@ static unsigned int __devinit ata66_ali1 if(m5229_revision <= 0x20) tmpbyte = (tmpbyte & (~0x02)) | 0x01; + else if (m5229_revision == 0xc7) + tmpbyte |= 0x03; else tmpbyte |= 0x01; _