nucleo-f072rb: Add initial set of board files

This change adds files to support nucleo-f072rb. This board can be used as
a DUT to test STM32F072.

BUG=none
BRANCH=tot
TEST=Verified EC console works. Flashed the board by 'make flash'. User LED
brinks periodically and when user button is pressed.
make buildall && make tests

Change-Id: I628f229b62c4b06d19d8245121f79a13e17bc2e9
Signed-off-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/338461

1 files changed, 37 insertions, 0 deletions

diff --git a/board/nucleo-f072rb/board.c b/board/nucleo-f072rb/board.c
new file mode 100644
index 0000000000..7bbfdfab39
--- /dev/null
+++ b/board/nucleo-f072rb/board.c
@@ -0,0 +1,37 @@
+/* Copyright 2016 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "common.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "registers.h"
+#include "task.h"
+
+void button_event(enum gpio_signal signal)
+{
+	gpio_set_level(GPIO_LED_U, 1);
+}
+
+#include "gpio_list.h"
+
+void tick_event(void)
+{
+	static int count;
+
+	gpio_set_level(GPIO_LED_U, (count & 0x07) == 0);
+
+	count++;
+}
+DECLARE_HOOK(HOOK_TICK, tick_event, HOOK_PRIO_DEFAULT);
+
+/******************************************************************************
+ * Initialize board.
+ */
+static void board_init(void)
+{
+	gpio_enable_interrupt(GPIO_USER_BUTTON);
+
+}
+DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);