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+# Copyright (c) 2015 Stephen Warren
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+# Copyright (c) 2015-2016, NVIDIA CORPORATION. All rights reserved.
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+#
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+# SPDX-License-Identifier: GPL-2.0
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+
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+import pytest
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+
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+@pytest.mark.buildconfigspec('cmd_memory')
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+def test_md(u_boot_console):
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+ '''Test that md reads memory as expected, and that memory can be modified
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+ using the mw command.'''
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+
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+ ram_base = u_boot_console.find_ram_base()
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+ addr = '%08x' % ram_base
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+ val = 'a5f09876'
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+ expected_response = addr + ': ' + val
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+ u_boot_console.run_command('mw ' + addr + ' 0 10')
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+ response = u_boot_console.run_command('md ' + addr + ' 10')
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+ assert(not (expected_response in response))
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+ u_boot_console.run_command('mw ' + addr + ' ' + val)
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+ response = u_boot_console.run_command('md ' + addr + ' 10')
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+ assert(expected_response in response)
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+
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+@pytest.mark.buildconfigspec('cmd_memory')
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+def test_md_repeat(u_boot_console):
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+ '''Test command repeat (via executing an empty command) operates correctly
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+ for "md"; the command must repeat and dump an incrementing address.'''
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+
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+ ram_base = u_boot_console.find_ram_base()
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+ addr_base = '%08x' % ram_base
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+ words = 0x10
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+ addr_repeat = '%08x' % (ram_base + (words * 4))
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+ u_boot_console.run_command('md %s %x' % (addr_base, words))
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+ response = u_boot_console.run_command('')
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+ expected_response = addr_repeat + ': '
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+ assert(expected_response in response)
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