1 files changed, 59 insertions, 0 deletions
diff --git a/board/omap3/zoom2/debug_board.c b/board/omap3/zoom2/debug_board.c
new file mode 100644
index 0000000..a4ddf29
--- /dev/null
+++ b/board/omap3/zoom2/debug_board.c
@@ -0,0 +1,59 @@
+/*
+ * Copyright (c) 2009 Wind River Systems, Inc.
+ * Tom Rix <Tom.Rix@windriver.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ *
+ */
+#include <common.h>
+#include <asm/arch/cpu.h>
+#include <asm/io.h>
+#include <asm/arch/mux.h>
+#include <asm/arch/gpio.h>
+
+#define DEBUG_BOARD_CONNECTED		1
+#define DEBUG_BOARD_NOT_CONNECTED	0
+
+static int debug_board_connected = DEBUG_BOARD_CONNECTED;
+
+static void zoom2_debug_board_detect (void)
+{
+	int val = 0;
+
+	if (!omap_request_gpio(158)) {
+		/*
+		 * GPIO to query for debug board
+		 * 158 db board query
+		 */
+		omap_set_gpio_direction(158, 1);
+		val = omap_get_gpio_datain(158);
+		omap_free_gpio(158);
+	}
+
+	if (!val)
+		debug_board_connected = DEBUG_BOARD_NOT_CONNECTED;
+}
+
+int zoom2_debug_board_connected (void)
+{
+	static int first_time = 1;
+
+	if (first_time) {
+		zoom2_debug_board_detect ();
+		first_time = 0;
+	}
+	return debug_board_connected;
+}