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