From d25562aaf79bd794ee548d1645e1f04d7f50628e Mon Sep 17 00:00:00 2001
From: imp <imp@FreeBSD.org>
Date: Fri, 28 Feb 2014 02:38:04 +0000
Subject: [PATCH] Add fdt binding for nand for Atmel parts. This does little
 more than match the device. Pinctrl will need to be added before this will
 work, in addition to migrating the current board_foo.c method of configuring
 these pins to something else. Non-FDT systems won't be affected, yet.

---
 sys/dev/nand/nfc_at91.c | 19 +++++++++++++++++--
 1 file changed, 17 insertions(+), 2 deletions(-)

diff --git a/sys/dev/nand/nfc_at91.c b/sys/dev/nand/nfc_at91.c
index 7357cdbd31dc..74b0901dd07e 100644
--- a/sys/dev/nand/nfc_at91.c
+++ b/sys/dev/nand/nfc_at91.c
@@ -32,6 +32,8 @@
  * is on the board.
  */
 
+#include "opt_platform.h"
+
 #include <sys/cdefs.h>
 __FBSDID("$FreeBSD$");
 
@@ -57,6 +59,12 @@ __FBSDID("$FreeBSD$");
 #include <dev/nand/nfc_at91.h>
 #include <arm/at91/at91_smc.h>
 
+#ifdef FDT
+#include <dev/fdt/fdt_common.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+#endif
+
 /*
  * Data cycles are triggered by access to any address within the EBI CS3 region
  * that has A21 and A22 clear.  Command cycles are any access with bit A21
@@ -108,7 +116,10 @@ dev_write_1(struct at91_nand_softc *sc, bus_size_t offset, u_int8_t value)
 static int
 at91_nand_probe(device_t dev)
 {
-
+#ifdef FDT
+	if (!ofw_bus_is_compatible(dev, "atmel,at91rm9200-nand"))
+		return (ENXIO);
+#endif
 	device_set_desc(dev, "AT91 Integrated NAND controller");
 	return (BUS_PROBE_DEFAULT);
 }
@@ -274,5 +285,9 @@ static driver_t at91_nand_driver = {
 };
 
 static devclass_t at91_nand_devclass;
-DRIVER_MODULE(at91_nand, atmelarm, at91_nand_driver, at91_nand_devclass, 0, 0);
 
+#ifdef FDT
+DRIVER_MODULE(at91_nand, simplebus, at91_nand_driver, at91_nand_devclass, 0, 0);
+#else
+DRIVER_MODULE(at91_nand, atmelarm, at91_nand_driver, at91_nand_devclass, 0, 0);
+#endif