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/* Copyright 2020 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
/* C2D2 configuration */
#ifndef __CROS_EC_BOARD_H
#define __CROS_EC_BOARD_H
/*
* Allow dangerous commands all the time, since we don't have a write protect
* switch.
*/
#define CONFIG_SYSTEM_UNLOCKED
/* 48 MHz SYSCLK clock frequency */
#define CPU_CLOCK 48000000
#define CONFIG_BOARD_PRE_INIT
/* Enable USART */
#define CONFIG_STREAM_USART
#define CONFIG_STREAM_USART1 /* EC USART */
#define CONFIG_STREAM_USART3 /* AP USART - not connected by default */
#define CONFIG_STREAM_USART4 /* H1 USART */
#define CONFIG_STREAM_USB
#define CONFIG_CMD_USART_INFO
/* The UART console is on USART2 (PA14/PA15) */
#undef CONFIG_UART_CONSOLE
#define CONFIG_UART_CONSOLE 2
#undef CONFIG_UART_TX_DMA
#undef CONFIG_UART_RX_DMA
/* Optional features */
#define CONFIG_STM_HWTIMER32
#define CONFIG_HW_CRC
/* USB Configuration */
#define CONFIG_USB
#define CONFIG_USB_CONSOLE
#define CONFIG_USB_PID 0x5041
#define CONFIG_USB_SERIALNO
#define DEFAULT_SERIALNO "Uninitialized"
#define CONFIG_USB_UPDATE
/* USB interface indexes (use define rather than enum to expand them)
*
* Note these values are used in servo_interface.py for the 'interface' value
*/
#define USB_IFACE_USART4_STREAM 0 /* H1 */
#define USB_IFACE_UPDATE 1
#define USB_IFACE_SPI 2
#define USB_IFACE_CONSOLE 3
#define USB_IFACE_I2C 4
#define USB_IFACE_USART3_STREAM 5 /* AP (not connected by default) */
#define USB_IFACE_USART1_STREAM 6 /* EC */
#define USB_IFACE_COUNT 7
/* USB endpoint indexes (use define rather than enum to expand them) */
#define USB_EP_CONTROL 0
#define USB_EP_USART4_STREAM 1
#define USB_EP_UPDATE 2
#define USB_EP_SPI 3
#define USB_EP_CONSOLE 4
#define USB_EP_I2C 5
#define USB_EP_USART3_STREAM 6
#define USB_EP_USART1_STREAM 7
#define USB_EP_COUNT 8
/* Enable control of SPI over USB */
#define CONFIG_USB_SPI
#define CONFIG_SPI_CONTROLLER
#define CONFIG_SPI_FLASH_PORT 0 /* SPI2 is 0th in stm's SPI_REGS var */
/* Enable control of I2C over USB */
#define CONFIG_USB_I2C
#define CONFIG_I2C
#define CONFIG_I2C_CONTROLLER
#define I2C_PORT_EC 0
#define I2C_PORT_AUX 1
/* See i2c_ite_flash_support.c for more information about these values */
#define CONFIG_ITE_FLASH_SUPPORT
#define CONFIG_I2C_XFER_LARGE_TRANSFER
#undef CONFIG_USB_I2C_MAX_WRITE_COUNT
#undef CONFIG_USB_I2C_MAX_READ_COUNT
#define CONFIG_USB_I2C_MAX_WRITE_COUNT ((1 << 9) - 4)
#define CONFIG_USB_I2C_MAX_READ_COUNT ((1 << 9) - 6)
/*
* Set all ADC samples to take 239.5 clock cycles. This allows us to measure
* weakly driven signals like the H1 Vref.
*/
#define CONFIG_ADC_SAMPLE_TIME STM32_ADC_SMPR_239_5_CY
/* Options features */
#define CONFIG_ADC
/*
* See 'Programmable voltage detector characteristics' in the STM32F072x8
* Datasheet. PVD Threshold 1 corresponds to a falling voltage threshold of
* min:2.09V, max:2.27V.
*/
#define CONFIG_PVD
#define PVD_THRESHOLD 1
/* This is not actually an EC so disable some features. */
#undef CONFIG_WATCHDOG_HELP
#undef CONFIG_LID_SWITCH
#ifndef __ASSEMBLER__
/* Timer selection */
#define TIM_CLOCK32 2
#define TIM_ADC 3
#include "gpio_signal.h"
/* USB string indexes */
enum usb_strings {
USB_STR_DESC,
USB_STR_VENDOR,
USB_STR_PRODUCT,
USB_STR_SERIALNO,
USB_STR_VERSION,
USB_STR_USART4_STREAM_NAME,
USB_STR_UPDATE_NAME,
USB_STR_CONSOLE_NAME,
USB_STR_SPI_NAME,
USB_STR_I2C_NAME,
USB_STR_USART3_STREAM_NAME,
USB_STR_USART1_STREAM_NAME,
USB_STR_COUNT
};
enum adc_channel {
ADC_H1_SPI_VREF, /* Either H1 Vref or SPI Vref depending on mode */
ADC_EC_SPI_VREF, /* Either EC Vref or SPI Vref depending on mode */
ADC_CH_COUNT,
};
#endif /* !__ASSEMBLER__ */
#endif /* __CROS_EC_BOARD_H */
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