Hi, dear FreeBSD developers!
Meanwhile I was able to restore the previous behavior. My RELENG_7 kernel boots with right
sio port assignments. :-))
IMHO the reason for the error in 7.0 is, that it calls device_add_child(dev, NULL, -1);
The unit is not determined, so the bus subsystem assigns the 1st sio unit. That is 0 and
wrong in my case. The patch uses some code from RELENG_6 to determine the 1st free sio
unit. I know this is a hack, but you should see, where the problem is to be searched.
Regards,
Frank
===================================================================
RCS file: /data/freebsd/src/sys/dev/puc/puc.c,v
retrieving revision 1.50
diff -u -w -p -r1.50 puc.c
--- puc.c 6 Jun 2007 22:17:01 -0000 1.50
+++ puc.c 23 Nov 2007 14:17:29 -0000
@@ -47,6 +47,7 @@ __FBSDID("$FreeBSD: src/sys/dev/puc/puc.
#include <dev/puc/puc_bfe.h>
#define PUC_ISRCCNT 5
+#define PUC_DEBUG 1
struct puc_port {
struct puc_bar *p_bar;
@@ -70,6 +71,31 @@ const char puc_driver_name[] = "puc";
MALLOC_DEFINE(M_PUC, "PUC", "PUC driver");
+
+static int
+puc_find_free_unit(device_t dev, char *name)
+{
+ devclass_t dc;
+ int start;
+ int unit;
+
+ unit = 0;
+ start = 0;
+ while (resource_int_value(name, unit, "port", &start) == 0 &&
+ start > 0)
+ unit++;
+ dc = devclass_find(name);
+ if (dc == NULL)
+ return (-1);
+ while (devclass_get_device(dc, unit))
+ unit++;
+#if PUC_DEBUG
+ device_printf(dev, "Using %s%d\n", name, unit);
+#endif
+ return (unit);
+}
+
+
struct puc_bar *
puc_get_bar(struct puc_softc *sc, int rid)
{
@@ -201,6 +227,13 @@ puc_bfe_attach(device_t dev)
bus_space_handle_t bsh;
bus_space_tag_t bst;
int error, idx;
+#if PUC_DEBUG
+ int oldverbose = bootverbose;
+ bootverbose = 1;
+
+ device_printf(dev, "puc_bfe_attach\n");
+#endif
+
sc = device_get_softc(dev);
@@ ...
