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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>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
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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#include "common.h"
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#include "console.h"
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#include "host_command.h"
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#include "system.h"
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#include "vboot.h"
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/* Console output macros */
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#define CPUTS(outstr) cputs(CC_VBOOT, outstr)
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#define CPRINTF(format, args...) cprintf(CC_VBOOT, format, ## args)
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/****************************************************************************/
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/* Host commands */
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static int host_cmd_vboot(struct host_cmd_handler_args *args)
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{
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const struct ec_params_vboot_cmd *p =
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(const struct ec_params_vboot_cmd *)args->params;
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struct ec_params_vboot_cmd *r =
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(struct ec_params_vboot_cmd *)args->response;
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uint8_t v;
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switch (p->in.cmd) {
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case VBOOT_CMD_GET_FLAGS:
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v = VBOOT_FLAGS_IMAGE_MASK & system_get_image_copy();
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r->out.get_flags.val = v;
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args->response_size = sizeof(r);
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break;
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case VBOOT_CMD_SET_FLAGS:
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v = p->in.set_flags.val;
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break;
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default:
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CPRINTF("[%T LB bad cmd 0x%x]\n", p->in.cmd);
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return EC_RES_INVALID_PARAM;
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}
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return EC_RES_SUCCESS;
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}
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DECLARE_HOST_COMMAND(EC_CMD_VBOOT_CMD,
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host_cmd_vboot,
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EC_VER_MASK(0));
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