Add board for USB PD chip evaluation

Base board configuration to evaluate USB PD interface chip by
connecting them a STM32F072 Discovery board.

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>

BRANCH=none
BUG=chrome-os-partner:41497
TEST=Flash the STM32F072 discovery using the following command:
make flash BOARD=pdeval-stm32f072
then connect to the EC console through the USB port.

Change-Id: Ie3f5dcd04c077be49fbacc020f7af4f298039e8a
Reviewed-on: https://chromium-review.googlesource.com/277713
Tested-by: Alec Berg <alecaberg@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Alec Berg <alecaberg@chromium.org>
Commit-Queue: Alec Berg <alecaberg@chromium.org>

1 files changed, 55 insertions, 0 deletions

diff --git a/board/pdeval-stm32f072/board.c b/board/pdeval-stm32f072/board.c
new file mode 100644
index 0000000000..e0cdb7d970
--- /dev/null
+++ b/board/pdeval-stm32f072/board.c
@@ -0,0 +1,55 @@
+/* Copyright 2015 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.
+ */
+/* STM32F072-discovery board based USB PD evaluation configuration */
+
+#include "common.h"
+#include "ec_version.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "host_command.h"
+#include "i2c.h"
+#include "registers.h"
+#include "task.h"
+#include "usb.h"
+#include "usb_pd.h"
+#include "util.h"
+
+void button_event(enum gpio_signal signal);
+
+void alert_event(enum gpio_signal signal)
+{
+	/* Exchange status with PD MCU. */
+	host_command_pd_send_status(PD_CHARGE_NO_CHANGE);
+}
+
+#include "gpio_list.h"
+
+const void *const usb_strings[] = {
+	[USB_STR_DESC]         = usb_string_desc,
+	[USB_STR_VENDOR]       = USB_STRING_DESC("Google Inc."),
+	[USB_STR_PRODUCT]      = USB_STRING_DESC("PDeval-stm32f072"),
+	[USB_STR_VERSION]      = USB_STRING_DESC(CROS_EC_VERSION32),
+	[USB_STR_CONSOLE_NAME] = USB_STRING_DESC("Shell"),
+};
+
+BUILD_ASSERT(ARRAY_SIZE(usb_strings) == USB_STR_COUNT);
+
+/* Initialize board. */
+static void board_init(void)
+{
+	gpio_enable_interrupt(GPIO_USER_BUTTON);
+	gpio_enable_interrupt(GPIO_PD_MCU_INT);
+}
+DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
+
+void board_reset_pd_mcu(void)
+{
+}
+
+/* I2C ports */
+const struct i2c_port_t i2c_ports[] = {
+	{"tcpc", I2C_PORT_TCPC, 100 /* kHz */, GPIO_I2C0_SCL, GPIO_I2C0_SDA}
+};
+const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);