Volteer: initial EC board setup

Create Volteer skeleton build. Only includes base NPCX7 configuration
required to build.

BUG=none
BRANCH=none
TEST=make BOARD=volteer, make buildall
TEST=Booted skeleton volteer EC image on careena board.

Change-Id: I07769edfac9818320f18bbc9d0ebcd8f345fb8bb
Signed-off-by: Keith Short <keithshort@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/1758532
Reviewed-by: Abe Levkoy <alevkoy@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>

8 files changed, 217 insertions, 0 deletions

diff --git a/baseboard/volteer/baseboard.c b/baseboard/volteer/baseboard.c
new file mode 100644
index 0000000000..e10e892566
--- /dev/null
+++ b/baseboard/volteer/baseboard.c
@@ -0,0 +1,14 @@
+/* Copyright 2019 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.
+ */
+
+/* Volteer family-specific configuration */
+#include "gpio.h"
+
+/******************************************************************************/
+/* Wake up pins */
+const enum gpio_signal hibernate_wake_pins[] = {
+};
+const int hibernate_wake_pins_used = ARRAY_SIZE(hibernate_wake_pins);
+
diff --git a/baseboard/volteer/baseboard.h b/baseboard/volteer/baseboard.h
new file mode 100644
index 0000000000..543a42bdb8
--- /dev/null
+++ b/baseboard/volteer/baseboard.h
@@ -0,0 +1,50 @@
+/* Copyright 2019 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.
+ */
+
+/* Volteer baseboard configuration */
+
+#ifndef __CROS_EC_BASEBOARD_H
+#define __CROS_EC_BASEBOARD_H
+
+
+/* NPCX7 config */
+#define NPCX7_PWM1_SEL    0  /* GPIO C2 is not used as PWM1. */
+#define NPCX_UART_MODULE2 1  /* GPIO64/65 are used as UART pins. */
+/* Internal SPI flash on NPCX796FC is 512 kB */
+#define CONFIG_FLASH_SIZE (512 * 1024)
+#define CONFIG_SPI_FLASH_REGS
+#define CONFIG_SPI_FLASH_W25Q80 /* Internal SPI flash type. */
+
+/* EC Defines */
+#define CONFIG_CRC8
+#define CONFIG_HIBERNATE_PSL
+#define CONFIG_VBOOT_HASH
+#define CONFIG_VSTORE
+#define CONFIG_VSTORE_SLOT_COUNT 1
+
+/* Host communication */
+
+/* Chipset config */
+
+/* Common Keyboard Defines */
+
+/* Sensors */
+
+/* Common charger defines */
+
+/* Common battery defines */
+
+/* USB Type C and USB PD defines */
+
+/* BC 1.2 */
+
+/* I2C Bus Configuration */
+
+
+#ifndef __ASSEMBLER__
+
+#endif /* !__ASSEMBLER__ */
+
+#endif /* __CROS_EC_BASEBOARD_H */
diff --git a/baseboard/volteer/build.mk b/baseboard/volteer/build.mk
new file mode 100644
index 0000000000..03a91ceda7
--- /dev/null
+++ b/baseboard/volteer/build.mk
@@ -0,0 +1,9 @@
+# -*- makefile -*-
+# Copyright 2019 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.
+#
+# Volteer baseboard specific files build
+#
+
+baseboard-y=baseboard.o
diff --git a/board/volteer/board.c b/board/volteer/board.c
new file mode 100644
index 0000000000..295ecd696b
--- /dev/null
+++ b/board/volteer/board.c
@@ -0,0 +1,25 @@
+/* Copyright 2019 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.
+ */
+
+/* Volteer board-specific configuration */
+
+#include "common.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "lid_switch.h"
+#include "switch.h"
+#include "system.h"
+#include "task.h"
+#include "uart.h"
+#include "util.h"
+
+#include "gpio_list.h" /* Must come after other header files. */
+
+static void board_init(void)
+{
+	/* TODO */
+}
+DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
+
diff --git a/board/volteer/board.h b/board/volteer/board.h
new file mode 100644
index 0000000000..f8d899c8b4
--- /dev/null
+++ b/board/volteer/board.h
@@ -0,0 +1,58 @@
+/* Copyright 2019 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.
+ */
+
+/* Volteer board configuration */
+
+#ifndef __CROS_EC_BOARD_H
+#define __CROS_EC_BOARD_H
+
+/* Baseboard features */
+#include "baseboard.h"
+
+/* Optional features */
+#define CONFIG_SYSTEM_UNLOCKED /* Allow dangerous commands while in dev. */
+
+/* Config options automatically enabled by NPCX, re-enable once support added */
+#undef CONFIG_ADC
+#undef CONFIG_SWITCH
+
+#undef CONFIG_UART_TX_BUF_SIZE
+#define CONFIG_UART_TX_BUF_SIZE 4096
+
+/* Keyboard features */
+
+/* Sensors */
+
+/* USB Type C and USB PD defines */
+
+/* USB Type A Features */
+
+/* BC 1.2 */
+
+/* Volume Button feature */
+
+/* Fan features */
+
+/*
+ * Macros for GPIO signals used in common code that don't match the
+ * schematic names. Signal names in gpio.inc match the schematic and are
+ * then redefined here to so it's more clear which signal is being used for
+ * which purpose.
+ */
+#define GPIO_ENTERING_RW	GPIO_EC_ENTERING_RW
+#define GPIO_LID_OPEN		GPIO_EC_LID_OPEN
+#define GPIO_WP_L		GPIO_EC_WP_L
+
+
+
+#ifndef __ASSEMBLER__
+
+#include "gpio_signal.h"
+#include "registers.h"
+
+
+#endif /* !__ASSEMBLER__ */
+
+#endif /* __CROS_EC_BOARD_H */
diff --git a/board/volteer/build.mk b/board/volteer/build.mk
new file mode 100644
index 0000000000..72645a86cd
--- /dev/null
+++ b/board/volteer/build.mk
@@ -0,0 +1,14 @@
+# -*- makefile -*-
+# Copyright 2019 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.
+#
+# Board specific files build
+#
+
+CHIP:=npcx
+CHIP_FAMILY:=npcx7
+CHIP_VARIANT:=npcx7m6fc
+BASEBOARD:=volteer
+
+board-y=board.o
diff --git a/board/volteer/ec.tasklist b/board/volteer/ec.tasklist
new file mode 100644
index 0000000000..6e1791520d
--- /dev/null
+++ b/board/volteer/ec.tasklist
@@ -0,0 +1,13 @@
+/* Copyright 2019 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.
+ */
+
+/*
+ * See CONFIG_TASK_LIST in config.h for details.
+ */
+
+#define CONFIG_TASK_LIST \
+	TASK_ALWAYS(HOOKS, hook_task, NULL, LARGER_TASK_STACK_SIZE) \
+	TASK_ALWAYS(HOSTCMD, host_command_task, NULL, LARGER_TASK_STACK_SIZE) \
+	TASK_ALWAYS(CONSOLE, console_task, NULL, VENTI_TASK_STACK_SIZE)
diff --git a/board/volteer/gpio.inc b/board/volteer/gpio.inc
new file mode 100644
index 0000000000..7b9ee14a04
--- /dev/null
+++ b/board/volteer/gpio.inc
@@ -0,0 +1,34 @@
+/* -*- mode:c -*-
+ *
+ * Copyright 2019 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.
+ */
+
+/* Declare symbolic names for all the GPIOs that we care about.
+ * Note: Those with interrupt handlers must be declared first. */
+
+/* Wake Source interrupts */
+GPIO_INT(EC_LID_OPEN,          PIN(D, 2), GPIO_INT_BOTH | GPIO_HIB_WAKE_HIGH, lid_interrupt)
+GPIO_INT(EC_WP_L,              PIN(A, 1), GPIO_INT_BOTH, switch_interrupt)
+
+/* Power sequencing interrupts */
+
+/* Sensor Interrupts */
+
+/* USB-C interrupts */
+
+/* HDMI interrupts */
+
+/* Volume button interrupts */
+
+/* AP Signals */
+GPIO(EC_ENTERING_RW,           PIN(E, 3), GPIO_OUT_LOW)
+
+/* USB and USBC Signals */
+
+/* Misc Signals */
+
+/* UART */
+ALTERNATE(PIN_MASK(6, BIT(5) | BIT(4)), 0, MODULE_UART, 0)                           /* UART from EC to Servo */
+