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acf6f963a1
BUG=chrome-os-partner:11171 TEST=manual 1. Clear some of the writable-bits in the flash registers > ww 0x400fe40c 0xffff1234 write 0x400fe40c = 0xffff1234 > rw 0x400fe40c read 0x400fe40c = 0xffff1234 2. Reset using power+refresh 3. Register should be clear again > rw 0x400fe40c read 0x400fe40c = 0xffffffff 4. Sysinfo should indicate reset-pin reason AND hard-reset reason > sysinfo Reset flags: 0x0000000a (reset-pin power-on) 5. Reset using power+refresh 6. Sysinfo should indicate reset-pin reason only > sysinfo Reset flags: 0x00000002 (reset-pin) 7. Clear writable-bits again > ww 0x400fe40c 0xffff1234 write 0x400fe40c = 0xffff1234 8. Jump to another image. This should NOT trigger a hard reset. > sysjump A > sysinfo Reset flags: 0x00000402 (reset-pin sysjump) Change-Id: Ie1d6af2acc68217bb82faae464798ee85d63d1ea Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://gerrit.chromium.org/gerrit/27540 Reviewed-by: Bill Richardson <wfrichar@chromium.org>
38 lines
984 B
C
38 lines
984 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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/* Verified boot module for Chrome EC */
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#ifndef __CROS_EC_VBOOT_H
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#define __CROS_EC_VBOOT_H
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#include "common.h"
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/*
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* Check verified boot signatures, and jump to one of the RW images if
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* necessary.
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*/
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int vboot_check_signature(void);
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/* Initialize the module. */
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int vboot_init(void);
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/* These are the vboot commands available via LPC. */
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enum vboot_command {
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VBOOT_CMD_GET_FLAGS,
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VBOOT_CMD_SET_FLAGS,
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VBOOT_NUM_CMDS,
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};
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/*
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* These are the flags transferred across LPC. At the moment, only the devmode
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* flag can be set, and only because it's faked. Ultimately this functionality
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* will be moved elsewhere.
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*/
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#define VBOOT_FLAGS_IMAGE_MASK 0x03 /* enum system_image_copy_t */
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#define VBOOT_FLAGS_UNUSED 0x04 /* was fake dev-mode bit */
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#endif /* __CROS_EC_VBOOT_H */
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