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3b8b1bd586
- Add a special port80 event for LPC reset assertion and use that event to store the previous post code. - Add a new command to retrive the last saved post code so I can easily query it at boot/resume and log unusual codes. BUG=none TEST=manual (with additional coreboot/mosys changes) - interrupt boot process by issuing x86reset on EC console or by using warm reset button on servo - read event log with mosys on next boot 78 | 2012-08-13 09:24:04 | System boot | 262 79 | 2012-08-13 09:24:04 | Last post code in previous boot | 0x9e 80 | 2012-08-13 09:24:04 | System Reset Change-Id: I7b9f10442b9c468d89fde4e75adb94b0c07c2c8d Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/29995 Reviewed-by: Randall Spangler <rspangler@chromium.org>
26 lines
611 B
C
26 lines
611 B
C
/* Copyright (c) 2012 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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/* Port 80 module for Chrome EC */
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#ifndef __CROS_EC_PORT80_H
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#define __CROS_EC_PORT80_H
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#include "common.h"
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enum port_80_event {
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PORT_80_EVENT_RESUME = 0x1001, /* S3->S0 transition */
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PORT_80_EVENT_RESET = 0x1002, /* RESET transition */
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};
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/**
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* Store data from a LPC write to port 80, or a port_80_event code.
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*
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* @param data Data written to port 80.
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*/
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void port_80_write(int data);
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#endif /* __CROS_EC_PORT80_H */
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