hammer: Initial checkout

BRANCH=none
BUG=chrome-os-partner:59083
TEST=make BOARD=hammer -j && bash flash_hammer

Change-Id: I8cc11408d28677a800af58e738f47d5dcadea3e6
Reviewed-on: https://chromium-review.googlesource.com/407739
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>

7 files changed, 262 insertions, 0 deletions

diff --git a/board/hammer/board.c b/board/hammer/board.c
new file mode 100644
index 0000000000..3aef27269c
--- /dev/null
+++ b/board/hammer/board.c
@@ -0,0 +1,89 @@
+/* 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.
+ */
+/* Hammer board configuration */
+
+#include "common.h"
+#include "ec_version.h"
+#include "gpio.h"
+#include "hooks.h"
+#include "i2c.h"
+#include "registers.h"
+#include "task.h"
+#include "update_fw.h"
+#include "usart-stm32f0.h"
+#include "usart_tx_dma.h"
+#include "usart_rx_dma.h"
+#include "usb_descriptor.h"
+#include "util.h"
+
+#include "gpio_list.h"
+
+/******************************************************************************
+ * Define the strings used in our USB descriptors.
+ */
+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("Hammer"),
+	[USB_STR_SERIALNO]     = 0,
+	[USB_STR_VERSION]      = USB_STRING_DESC(CROS_EC_VERSION32),
+	[USB_STR_UPDATE_NAME]  = USB_STRING_DESC("Firmware update"),
+};
+
+BUILD_ASSERT(ARRAY_SIZE(usb_strings) == USB_STR_COUNT);
+
+/******************************************************************************
+ * Support I2C master port for trackpad.
+ */
+
+/* I2C ports */
+const struct i2c_port_t i2c_ports[] = {
+	{"master", I2C_PORT_MASTER, 100,
+		GPIO_MASTER_I2C_SCL, GPIO_MASTER_I2C_SDA},
+};
+const unsigned int i2c_ports_used = ARRAY_SIZE(i2c_ports);
+
+/******************************************************************************
+ * Support firmware upgrade over USB. We can update whichever section is not
+ * the current section.
+ */
+
+/*
+ * This array defines possible sections available for the firmware update.
+ * The section which does not map the current executing code is picked as the
+ * valid update area. The values are offsets into the flash space.
+ */
+const struct section_descriptor board_rw_sections[] = {
+	{CONFIG_RO_MEM_OFF,
+	 CONFIG_RO_MEM_OFF + CONFIG_RO_SIZE},
+	{CONFIG_RW_MEM_OFF,
+	 CONFIG_RW_MEM_OFF + CONFIG_RW_SIZE},
+};
+const struct section_descriptor * const rw_sections = board_rw_sections;
+const int num_rw_sections = ARRAY_SIZE(board_rw_sections);
+
+
+/******************************************************************************
+ * Initialize board.
+ */
+static void board_init(void)
+{
+
+}
+DECLARE_HOOK(HOOK_INIT, board_init, HOOK_PRIO_DEFAULT);
+
+void board_config_pre_init(void)
+{
+	/* enable SYSCFG clock */
+	STM32_RCC_APB2ENR |= 1 << 0;
+
+	/* Remap USART DMA to match the USART driver */
+	/*
+	 * the DMA mapping is :
+	 *  Chan 4 : USART1_TX
+	 *  Chan 5 : USART1_RX
+	 */
+	STM32_SYSCFG_CFGR1 |= (1 << 9) | (1 << 10); /* Remap USART1 RX/TX DMA */
+}
diff --git a/board/hammer/board.h b/board/hammer/board.h
new file mode 100644
index 0000000000..37c014ec0b
--- /dev/null
+++ b/board/hammer/board.h
@@ -0,0 +1,91 @@
+/* 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.
+ */
+
+/* Hammer configuration */
+
+#ifndef __CROS_EC_BOARD_H
+#define __CROS_EC_BOARD_H
+
+/* TODO: Remove CONFIG_SYSTEM_UNLOCKED prior to building MP FW. */
+#define CONFIG_SYSTEM_UNLOCKED
+
+/* 48 MHz SYSCLK clock frequency */
+#define CPU_CLOCK 48000000
+
+/* The UART console is on USART1 (PA9/PA10) */
+#undef CONFIG_UART_CONSOLE
+#define CONFIG_UART_CONSOLE 1
+
+/* Optional features */
+#define CONFIG_STM_HWTIMER32
+#define CONFIG_HW_CRC
+
+/* USB Configuration */
+#define CONFIG_USB
+#define CONFIG_USB_PID 0x5022
+#define CONFIG_STREAM_USB
+#define CONFIG_USB_UPDATE
+#define CONFIG_USB_HID
+
+#undef CONFIG_USB_MAXPOWER_MA
+#define CONFIG_USB_MAXPOWER_MA 100
+
+#define CONFIG_USB_SERIALNO
+/* TODO(drinkcat): Replace this by proper serial number. Note that according to
+ * USB standard, we must either unset this (iSerialNumber = 0), or have a unique
+ * serial number per device.
+ */
+#define DEFAULT_SERIALNO "Uninitialized"
+
+/* USB interface indexes (use define rather than enum to expand them) */
+#define USB_IFACE_UPDATE	0
+#define USB_IFACE_HID		1
+#define USB_IFACE_COUNT		2
+
+/* USB endpoint indexes (use define rather than enum to expand them) */
+#define USB_EP_CONTROL		0
+#define USB_EP_UPDATE		1
+#define USB_EP_HID		2
+#define USB_EP_COUNT		3
+
+/* Optional features */
+#define CONFIG_BOARD_PRE_INIT
+#define CONFIG_WATCHDOG_HELP
+
+/* No lid switch */
+#undef CONFIG_LID_SWITCH
+
+/* Enable I2C */
+#define CONFIG_I2C
+#define CONFIG_I2C_MASTER
+#define I2C_PORT_MASTER 0
+
+/* Sign and switch to RW partition on boot. */
+#define CONFIG_RWSIG
+#define CONFIG_RSA
+#define CONFIG_SHA256
+#define CONFIG_RSA_KEY_SIZE 2048
+
+#ifndef __ASSEMBLER__
+
+/* Timer selection */
+#define TIM_CLOCK32 2
+#define TIM_WATCHDOG 17
+
+#include "gpio_signal.h"
+
+/* USB string indexes */
+enum usb_strings {
+	USB_STR_DESC = 0,
+	USB_STR_VENDOR,
+	USB_STR_PRODUCT,
+	USB_STR_SERIALNO,
+	USB_STR_VERSION,
+	USB_STR_UPDATE_NAME,
+	USB_STR_COUNT
+};
+
+#endif /* !__ASSEMBLER__ */
+#endif /* __CROS_EC_BOARD_H */
diff --git a/board/hammer/build.mk b/board/hammer/build.mk
new file mode 100644
index 0000000000..0e069a31ad
--- /dev/null
+++ b/board/hammer/build.mk
@@ -0,0 +1,13 @@
+# -*- makefile -*-
+# 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.
+#
+# Board specific files build
+
+# the IC is STmicro STM32F072RBT6
+CHIP:=stm32
+CHIP_FAMILY:=stm32f0
+CHIP_VARIANT:=stm32f07x
+
+board-y=board.o
diff --git a/board/hammer/dev_key.pem b/board/hammer/dev_key.pem
new file mode 100644
index 0000000000..b3400e90e5
--- /dev/null
+++ b/board/hammer/dev_key.pem
@@ -0,0 +1,28 @@
+-----BEGIN PRIVATE KEY-----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+-----END PRIVATE KEY-----
diff --git a/board/hammer/ec.tasklist b/board/hammer/ec.tasklist
new file mode 100644
index 0000000000..73f46d37d4
--- /dev/null
+++ b/board/hammer/ec.tasklist
@@ -0,0 +1,21 @@
+/* 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.
+ */
+
+/**
+ * List of enabled tasks in the priority order
+ *
+ * The first one has the lowest priority.
+ *
+ * For each task, use the macro TASK_ALWAYS(n, r, d, s) for base tasks and
+ * TASK_NOTEST(n, r, d, s) for tasks that can be excluded in test binaries,
+ * where :
+ * 'n' in the name of the task
+ * 'r' in the main routine of the task
+ * 'd' in an opaque parameter passed to the routine at startup
+ * 's' is the stack size in bytes; must be a multiple of 8
+ */
+#define CONFIG_TASK_LIST \
+	TASK_ALWAYS(HOOKS,    hook_task,    NULL, TASK_STACK_SIZE) \
+	TASK_ALWAYS(CONSOLE,  console_task, NULL, LARGER_TASK_STACK_SIZE)
diff --git a/board/hammer/gpio.inc b/board/hammer/gpio.inc
new file mode 100644
index 0000000000..5825d08310
--- /dev/null
+++ b/board/hammer/gpio.inc
@@ -0,0 +1,19 @@
+/* -*- mode:c -*-
+ *
+ * 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.
+ */
+
+/* I2C pins should be configured as inputs until I2C module is    */
+/* initialized. This will avoid driving the lines unintentionally.*/
+GPIO(MASTER_I2C_SCL,		PIN(B, 8), GPIO_INPUT)
+GPIO(MASTER_I2C_SDA,		PIN(B, 9), GPIO_INPUT)
+
+/* Unimplemented signals since we are not an EC */
+UNIMPLEMENTED(ENTERING_RW)
+UNIMPLEMENTED(WP_L)
+
+ALTERNATE(PIN_MASK(A, 0x0600), 1, MODULE_UART, 0) /* USART1: PA09/PA10 - Servo stm32 console UART */
+
+ALTERNATE(PIN_MASK(B, 0x0300), 1, MODULE_I2C, 0) /* I2C MASTER:PB8/9 GPIO_ODR_HIGH */
diff --git a/util/flash_ec b/util/flash_ec
index 9dcc8e0b79..1d25112abc 100755
--- a/util/flash_ec
+++ b/util/flash_ec
@@ -61,6 +61,7 @@ BOARDS_STM32=(
 	chell_pd
 	elm
 	glados_pd
+	hammer
 	honeybuns
 	jerry
 	kitty