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/*
* 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.
*/
#ifndef __EC_BOARD_CR50_SCRATCH_REG1_H
#define __EC_BOARD_CR50_SCRATCH_REG1_H
/*
* Bit assignments of the LONG_LIFE_SCRATCH1 register. This register survives
* all kinds of resets, it is cleared only on the Power ON event.
*/
#define BOARD_SLAVE_CONFIG_SPI (1 << 0) /* TPM uses SPI interface */
#define BOARD_SLAVE_CONFIG_I2C (1 << 1) /* TPM uses I2C interface */
/*
* The gaps are left to enusre backwards compatibility with the earliest cr50
* code releases. It will be possible to safely reuse these gaps if and when the
* rest of the bits are taken.
*/
/* TODO(crosbug.com/p/56945): Remove when sys_rst_l has an external pullup */
#define BOARD_NEEDS_SYS_RST_PULL_UP (1 << 5) /* Add a pullup to sys_rst_l */
#define BOARD_USE_PLT_RESET (1 << 6) /* Use plt_rst_l instead of */
/* sys_rst_l to monitor the */
/* system resets */
/* Bits to store write protect bit state across deep sleep and resets. */
#define BOARD_WP_ASSERTED (1 << 8)
#define BOARD_FORCING_WP (1 << 9)
/*
* Bit to signal to compatible RO to suppress its uart output.
* Helps to reduce time to resume from deep sleep.
*/
#define BOARD_NO_RO_UART (1 << 10)
/*
* Bits to store current case-closed debug state across deep sleep.
*
* DO NOT examine these bits to determine the current CCD state. Call methods
* from case_closed_debug.h instead.
*/
#define BOARD_CCD_SHIFT 11
#define BOARD_CCD_STATE (3 << BOARD_CCD_SHIFT)
/*
* Macro to capture all properties related to board strapping pins. This must be
* updated if additional strap related properties are added.
*/
#define BOARD_ALL_PROPERTIES (BOARD_SLAVE_CONFIG_SPI | BOARD_SLAVE_CONFIG_I2C \
| BOARD_NEEDS_SYS_RST_PULL_UP | BOARD_USE_PLT_RESET)
#endif /* ! __EC_BOARD_CR50_SCRATCH_REG1_H */
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