[src/trunk]: src/sys/arch/sandpoint/sandpoint Build and use "i2c-child-device...

[nisimura <nisimura%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/b1837aba30ee
branches:  trunk
changeset: 763701:b1837aba30ee
user:      nisimura <nisimura%NetBSD.org@localhost>
date:      Thu Mar 31 02:32:35 2011 +0000

description:
Build and use "i2c-child-devices" property to choose the correct RTC
chip among various models.

diffstat:

 sys/arch/sandpoint/sandpoint/iic_eumb.c |  50 +++++++++++++++++++++++++++++++-
 1 files changed, 48 insertions(+), 2 deletions(-)

diffs (96 lines):

diff -r e731cfa7960e -r b1837aba30ee sys/arch/sandpoint/sandpoint/iic_eumb.c
--- a/sys/arch/sandpoint/sandpoint/iic_eumb.c   Thu Mar 31 01:19:37 2011 +0000
+++ b/sys/arch/sandpoint/sandpoint/iic_eumb.c   Thu Mar 31 02:32:35 2011 +0000
@@ -1,4 +1,4 @@
-/* $NetBSD: iic_eumb.c,v 1.10 2011/01/12 18:09:03 phx Exp $ */
+/* $NetBSD: iic_eumb.c,v 1.11 2011/03/31 02:32:35 nisimura Exp $ */
 
 /*-
  * Copyright (c) 2010,2011 Frank Wille.
@@ -29,7 +29,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: iic_eumb.c,v 1.10 2011/01/12 18:09:03 phx Exp $");
+__KERNEL_RCSID(0, "$NetBSD: iic_eumb.c,v 1.11 2011/03/31 02:32:35 nisimura Exp $");
 
 #include <sys/param.h>
 #include <sys/device.h>
@@ -37,6 +37,7 @@
 #include <machine/bus.h>
 #include <dev/i2c/motoi2cvar.h>
 #include <sandpoint/sandpoint/eumbvar.h>
+#include <machine/bootinfo.h>
 
 struct iic_eumb_softc {
        device_t                sc_dev;
@@ -51,6 +52,19 @@
 
 static int found;
 
+struct i2cdev {
+       const char *family;
+       const char *name;
+       int addr;
+};
+
+static struct i2cdev rtcmodel[] = {
+   { "kurobox",  "rs5c372rtc", 0x32 },
+   { "synology", "rs5c372rtc", 0x32 },
+};
+
+void add_i2c_child_devices(device_t, const char *);
+
 static int
 iic_eumb_match(device_t parent, cfdata_t cf, void *aux)
 {
@@ -64,6 +78,7 @@
        struct iic_eumb_softc *sc;
        struct eumb_attach_args *eaa;
        bus_space_handle_t ioh;
+       struct btinfo_prodfamily *pfam;
 
        sc = device_private(self);
        sc->sc_dev = self;
@@ -73,6 +88,9 @@
        aprint_naive("\n");
        aprint_normal("\n");
 
+       if ((pfam = lookup_bootinfo(BTINFO_PRODFAMILY)) != NULL)
+               add_i2c_child_devices(self, pfam->name);
+
        /*
         * map EUMB registers and attach MI motoi2c with default settings
         */
@@ -81,3 +99,31 @@
        sc->sc_motoi2c.sc_ioh = ioh;
        motoi2c_attach_common(self, &sc->sc_motoi2c, NULL);
 }
+
+void
+add_i2c_child_devices(device_t self, const char *family)
+{
+       struct i2cdev *rtc;
+       prop_dictionary_t pd;
+       prop_array_t pa;
+       int i;
+
+       rtc = NULL;
+       for (i = 0; i < (int)(sizeof(rtcmodel)/sizeof(rtcmodel[0])); i++) {
+               if (strcmp(family, rtcmodel[i].family) == 0) {
+                       rtc = &rtcmodel[i];
+                       goto found;
+               }
+       }
+       return;
+
+ found:
+       pd = prop_dictionary_create();
+       pa = prop_array_create();
+       prop_dictionary_set_cstring_nocopy(pd, "name", rtc->name);
+       prop_dictionary_set_uint32(pd, "addr", rtc->addr);
+       prop_array_add(pa, pd);
+       prop_dictionary_set(device_properties(self), "i2c-child-devices", pa);
+       prop_object_release(pd);
+       prop_object_release(pa);
+}