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Jason Thorpe wrote:
> 
> you should consult the actual PCI bus/device/function numbers, the way
> other platforms fix-up MI drivers for MD quirks.

Done.

> The name of the property should reflect that it's aceride-specific (and
> not have a name that ties it to the driver): ali1543-ide-force-compat-mode

Also done.

I also took note of Jachym suggestion to use
prop_dictionary_{get|set}_bool functions, rather than manipulating a
prop_bool.

Does the attached diff look ok?  I'm hoping to check it in this week.

Thanks,
Chris

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Index: arch/cats/cats/autoconf.c
===================================================================
RCS file: /cvsroot/src/sys/arch/cats/cats/autoconf.c,v
retrieving revision 1.11
diff -u -p -r1.11 autoconf.c
--- arch/cats/cats/autoconf.c	30 Jul 2007 12:25:14 -0000	1.11
+++ arch/cats/cats/autoconf.c	23 Sep 2007 09:53:43 -0000
@@ -55,6 +55,7 @@ __KERNEL_RCSID(0, "$NetBSD: autoconf.c,v
 #include <sys/malloc.h>
 #include <machine/bootconfig.h>
 #include <machine/intr.h>
+#include <dev/pci/pcivar.h>
 
 #include "isa.h"
 
@@ -167,5 +168,23 @@ cpu_configure(void)
 void
 device_register(struct device *dev, void *aux)
 {
+	if (device_is_a(dev, "aceride"))
+	{
+		/* cats builtin aceride is on 0:16:0 */
+		struct pci_attach_args *pa = aux;
+		if (((pa)->pa_bus == 0
+		    && (pa)->pa_device == 16 
+		    && (pa)->pa_function == 0))
+		{
+			if (prop_dictionary_set_bool(device_properties(dev),
+						"ali1543-ide-force-compat-mode",
+						true) == false)
+			{
+				printf("WARNING: unable to set "
+					"ali1543-ide-force-compat-mode "
+					"property for %s\n", dev->dv_xname);
+			}
+		}
+	}
 }
 /* End of autoconf.c */
Index: dev/pci/aceride.c
===================================================================
RCS file: /cvsroot/src/sys/dev/pci/aceride.c,v
retrieving revision 1.23
diff -u -p -r1.23 aceride.c
--- dev/pci/aceride.c	9 Feb 2007 21:55:27 -0000	1.23
+++ dev/pci/aceride.c	23 Sep 2007 09:53:43 -0000
@@ -167,6 +167,27 @@ acer_chip_map(struct pciide_softc *sc, s
 	    ~ACER_CHANSTATUSREGS_RO);
 	cr = pci_conf_read(sc->sc_pc, sc->sc_tag, PCI_CLASS_REG);
 	cr |= (PCIIDE_CHANSTATUS_EN << PCI_INTERFACE_SHIFT);
+	
+	{
+		/*
+		 * some BIOSes (port-cats ABLE) enable native mode, but don't
+		 * setup everything correctly, so allow the forcing of
+		 * compat mode
+		 */
+		bool force_compat_mode;
+		bool property_is_set;
+		property_is_set = prop_dictionary_get_bool(
+				device_properties(&sc->sc_wdcdev.sc_atac.atac_dev),
+				"ali1543-ide-force-compat-mode",
+				&force_compat_mode);
+		if (property_is_set && force_compat_mode)
+		{
+			cr &= ~((PCIIDE_INTERFACE_PCI(0)
+				| PCIIDE_INTERFACE_PCI(1))
+				<< PCI_INTERFACE_SHIFT);
+		}
+	}
+
 	pci_conf_write(sc->sc_pc, sc->sc_tag, PCI_CLASS_REG, cr);
 	/* Don't use cr, re-read the real register content instead */
 	interface = PCI_INTERFACE(pci_conf_read(sc->sc_pc, sc->sc_tag,

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