From 8f74c88a7330cfb9f8be768c1ddfb48159eb74af Mon Sep 17 00:00:00 2001
From: Luiz Otavio O Souza <loos@FreeBSD.org>
Date: Wed, 30 Mar 2016 17:00:33 +0000
Subject: [PATCH] Add basic FDT support for the mx25l SPI flash.

Sponsored by:	Rubicon Communications (Netgate)
---
 sys/dev/flash/mx25l.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/sys/dev/flash/mx25l.c b/sys/dev/flash/mx25l.c
index c4dad4b28775..c43b751fb1fb 100644
--- a/sys/dev/flash/mx25l.c
+++ b/sys/dev/flash/mx25l.c
@@ -26,6 +26,8 @@
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
+#include "opt_platform.h"
+
 #include <sys/param.h>
 #include <sys/systm.h>
 #include <sys/bio.h>
@@ -40,6 +42,12 @@ __FBSDID("$FreeBSD$");
 #include <sys/mutex.h>
 #include <geom/geom_disk.h>
 
+#ifdef FDT
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/ofw_bus_subr.h>
+#include <dev/ofw/openfirm.h>
+#endif
+
 #include <dev/spibus/spi.h>
 #include "spibus_if.h"
 
@@ -360,7 +368,15 @@ mx25l_read(device_t dev, off_t offset, caddr_t data, off_t count)
 static int
 mx25l_probe(device_t dev)
 {
+
+#ifdef FDT
+	if (!ofw_bus_status_okay(dev))
+		return (ENXIO);
+	if (!ofw_bus_is_compatible(dev, "st,m25p"))
+		return (ENXIO);
+#endif
 	device_set_desc(dev, "M25Pxx Flash Family");
+
 	return (0);
 }