cs5530a ide

Christer Weinigel christer at weinigel.se
Mon Sep 9 21:28:00 CEST 2002

[sorry all, I managed to use the wrong From: address again, so the
previous message will stick in the moderator filter again]

*wakes up in the middle of the night*

Ronald G Minnich <rminnich at lanl.gov> writes:

> Anybody out there know how to make the second IDE channel come up on this
> thing?
> On the pcm-5823 boards, the secondary IDE is never seen by Linux. I think
> there has to be a setting somewhere, I just don't know what!

Look at how it's done in scx200/southbridge.c, it's the same as for
the CS5530A.  So change cx5530/southbridge.c to:

        // now set PCI decode
        pci_read_config_byte(dev, 0x5b, &b);
#ifdef CX5530_PRIMARY_IDE
        printk_info(NAME "Enabling Primary IDE Controller\n");
        b |= 1 << 3;
        printk_info(NAME "Enabling Secondary IDE Controller\n");
        b |= 1 << 4;
        printk_info(NAME "Enabling BIOS ROM Positive Decode\n");
        b |= 1 << 5;
        printk_debug("Set F0/0x5b to 0x%x\n", b);
        pci_write_config_byte(dev, 0x5b, b);

  /Christer *goes back to sleep*

"Just how much can I get away with and still go to heaven?"

Freelance consultant specializing in device driver programming for Linux 
Christer Weinigel <christer at weinigel.se>  http://www.weinigel.se

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