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This test checks we cannot overwrite current running system image. BUG=chrome-os-partner:10262 TEST=Test passed Change-Id: I72be277c9de2114e72000a102d8b885e842ef15a Reviewed-on: https://gerrit.chromium.org/gerrit/27006 Commit-Ready: Vic Yang <victoryang@chromium.org> Reviewed-by: Vic Yang <victoryang@chromium.org> Tested-by: Vic Yang <victoryang@chromium.org>
47 lines
1.4 KiB
Python
47 lines
1.4 KiB
Python
# 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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# Flash overwrite test
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#
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from flash_test_util import get_flash_size
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from flash_test_util import get_ro_size
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from flash_test_util import test_write
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import time
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def test(helper):
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helper.wait_output("--- UART initialized")
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# Jump to RO
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helper.ec_command("sysjump ro")
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helper.wait_output("idle task started") # jump completed
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time.sleep(0.5)
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# Get flash info
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flashsize = get_flash_size(helper)
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rosize = get_ro_size(helper)
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# We are in RO now. Writing to RO should fail.
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test_write(helper, rosize / 2, 0x30, expect_fail=True)
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# Writing to RW should succeed.
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test_write(helper, rosize, 0x30) # begin of RW
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test_write(helper, (rosize + flashsize) / 2, 0x30) # mid-point of RW
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test_write(helper, flashsize - 0x30, 0x30) # end of flash
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# Jump to RW-A
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helper.ec_command("sysjump a")
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helper.wait_output("idle task started") # jump completed
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time.sleep(0.5)
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# We are in RW now. Writing to RO should succeed.
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test_write(helper, 0, 0x30) # begin of RO
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test_write(helper, rosize / 2, 0x30) # mid-point of RO
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test_write(helper, rosize - 0x30, 0x30) # end of RO
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# Writing to RW-A should fail.
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test_write(helper, rosize, 0x30, expect_fail=True)
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return True
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