287 lines
8.3 KiB
Python
287 lines
8.3 KiB
Python
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
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# Test U-Boot's "mmc read" command. The test reads data from the eMMC or SD
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# card, and validates the no errors occurred, and that the expected data was
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# read if the test configuration contains a CRC of the expected data.
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import pytest
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import time
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import u_boot_utils
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"""
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This test relies on boardenv_* to containing configuration values to define
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which MMC devices should be tested. For example:
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# Configuration data for test_mmc_dev, test_mmc_rescan, test_mmc_info; defines
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# whole MMC devices that mmc dev/rescan/info commands may operate upon.
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env__mmc_dev_configs = (
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{
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'fixture_id': 'emmc-boot0',
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'is_emmc': True,
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'devid': 0,
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'partid': 1,
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'info_device': ???,
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'info_speed': ???,
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'info_mode': ???,
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'info_buswidth': ???.
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},
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{
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'fixture_id': 'emmc-boot1',
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'is_emmc': True,
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'devid': 0,
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'partid': 2,
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'info_device': ???,
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'info_speed': ???,
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'info_mode': ???,
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'info_buswidth': ???.
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},
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{
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'fixture_id': 'emmc-data',
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'is_emmc': True,
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'devid': 0,
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'partid': 0,
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'info_device': ???,
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'info_speed': ???,
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'info_mode': ???,
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'info_buswidth': ???.
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},
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{
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'fixture_id': 'sd',
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'is_emmc': False,
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'devid': 1,
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'partid': None,
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'info_device': ???,
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'info_speed': ???,
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'info_mode': ???,
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'info_buswidth': ???.
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},
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}
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# Configuration data for test_mmc_rd; defines regions of the MMC (entire
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# devices, or ranges of sectors) which can be read:
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env__mmc_rd_configs = (
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{
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'fixture_id': 'emmc-boot0',
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'is_emmc': True,
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'devid': 0,
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'partid': 1,
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'sector': 0x10,
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'count': 1,
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},
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{
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'fixture_id': 'emmc-boot1',
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'is_emmc': True,
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'devid': 0,
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'partid': 2,
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'sector': 0x10,
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'count': 1,
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},
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{
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'fixture_id': 'emmc-data',
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'is_emmc': True,
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'devid': 0,
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'partid': 0,
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'sector': 0x10,
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'count': 0x1000,
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},
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{
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'fixture_id': 'sd-mbr',
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'is_emmc': False,
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'devid': 1,
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'partid': None,
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'sector': 0,
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'count': 1,
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'crc32': '8f6ecf0d',
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},
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{
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'fixture_id': 'sd-large',
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'is_emmc': False,
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'devid': 1,
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'partid': None,
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'sector': 0x10,
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'count': 0x1000,
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},
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)
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"""
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def mmc_dev(u_boot_console, is_emmc, devid, partid):
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"""Run the "mmc dev" command.
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Args:
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u_boot_console: A U-Boot console connection.
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is_emmc: Whether the device is eMMC
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devid: Device ID
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partid: Partition ID
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Returns:
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Nothing.
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"""
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# Select MMC device
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cmd = 'mmc dev %d' % devid
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if is_emmc:
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cmd += ' %d' % partid
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response = u_boot_console.run_command(cmd)
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assert 'no card present' not in response
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if is_emmc:
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partid_response = '(part %d)' % partid
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else:
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partid_response = ''
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good_response = 'mmc%d%s is current device' % (devid, partid_response)
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assert good_response in response
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@pytest.mark.buildconfigspec('cmd_mmc')
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def test_mmc_dev(u_boot_console, env__mmc_dev_config):
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"""Test the "mmc dev" command.
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Args:
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u_boot_console: A U-Boot console connection.
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env__mmc_dev_config: The single MMC configuration on which
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to run the test. See the file-level comment above for details
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of the format.
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Returns:
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Nothing.
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"""
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is_emmc = env__mmc_dev_config['is_emmc']
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devid = env__mmc_dev_config['devid']
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partid = env__mmc_dev_config.get('partid', 0)
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# Select MMC device
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mmc_dev(u_boot_console, is_emmc, devid, partid)
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@pytest.mark.buildconfigspec('cmd_mmc')
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def test_mmc_rescan(u_boot_console, env__mmc_dev_config):
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"""Test the "mmc rescan" command.
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Args:
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u_boot_console: A U-Boot console connection.
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env__mmc_dev_config: The single MMC configuration on which
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to run the test. See the file-level comment above for details
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of the format.
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Returns:
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Nothing.
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"""
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is_emmc = env__mmc_dev_config['is_emmc']
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devid = env__mmc_dev_config['devid']
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partid = env__mmc_dev_config.get('partid', 0)
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# Select MMC device
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mmc_dev(u_boot_console, is_emmc, devid, partid)
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# Rescan MMC device
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cmd = 'mmc rescan'
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response = u_boot_console.run_command(cmd)
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assert 'no card present' not in response
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@pytest.mark.buildconfigspec('cmd_mmc')
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def test_mmc_info(u_boot_console, env__mmc_dev_config):
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"""Test the "mmc info" command.
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Args:
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u_boot_console: A U-Boot console connection.
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env__mmc_dev_config: The single MMC configuration on which
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to run the test. See the file-level comment above for details
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of the format.
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Returns:
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Nothing.
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"""
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is_emmc = env__mmc_dev_config['is_emmc']
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devid = env__mmc_dev_config['devid']
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partid = env__mmc_dev_config.get('partid', 0)
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info_device = env__mmc_dev_config['info_device']
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info_speed = env__mmc_dev_config['info_speed']
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info_mode = env__mmc_dev_config['info_mode']
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info_buswidth = env__mmc_dev_config['info_buswidth']
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# Select MMC device
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mmc_dev(u_boot_console, is_emmc, devid, partid)
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# Read MMC device information
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cmd = 'mmc info'
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response = u_boot_console.run_command(cmd)
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good_response = "Device: %s" % info_device
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assert good_response in response
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good_response = "Bus Speed: %s" % info_speed
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assert good_response in response
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good_response = "Mode : %s" % info_mode
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assert good_response in response
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good_response = "Bus Width: %s" % info_buswidth
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assert good_response in response
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@pytest.mark.buildconfigspec('cmd_mmc')
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def test_mmc_rd(u_boot_console, env__mmc_rd_config):
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"""Test the "mmc read" command.
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Args:
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u_boot_console: A U-Boot console connection.
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env__mmc_rd_config: The single MMC configuration on which
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to run the test. See the file-level comment above for details
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of the format.
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Returns:
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Nothing.
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"""
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is_emmc = env__mmc_rd_config['is_emmc']
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devid = env__mmc_rd_config['devid']
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partid = env__mmc_rd_config.get('partid', 0)
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sector = env__mmc_rd_config.get('sector', 0)
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count_sectors = env__mmc_rd_config.get('count', 1)
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expected_crc32 = env__mmc_rd_config.get('crc32', None)
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read_duration_max = env__mmc_rd_config.get('read_duration_max', 0)
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count_bytes = count_sectors * 512
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bcfg = u_boot_console.config.buildconfig
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has_cmd_memory = bcfg.get('config_cmd_memory', 'n') == 'y'
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has_cmd_crc32 = bcfg.get('config_cmd_crc32', 'n') == 'y'
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ram_base = u_boot_utils.find_ram_base(u_boot_console)
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addr = '0x%08x' % ram_base
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# Select MMC device
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mmc_dev(u_boot_console, is_emmc, devid, partid)
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# Clear target RAM
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if expected_crc32:
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if has_cmd_memory and has_cmd_crc32:
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cmd = 'mw.b %s 0 0x%x' % (addr, count_bytes)
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u_boot_console.run_command(cmd)
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cmd = 'crc32 %s 0x%x' % (addr, count_bytes)
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response = u_boot_console.run_command(cmd)
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assert expected_crc32 not in response
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else:
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u_boot_console.log.warning(
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'CONFIG_CMD_MEMORY or CONFIG_CMD_CRC32 != y: Skipping RAM clear')
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# Read data
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cmd = 'mmc read %s %x %x' % (addr, sector, count_sectors)
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tstart = time.time()
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response = u_boot_console.run_command(cmd)
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tend = time.time()
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good_response = 'MMC read: dev # %d, block # %d, count %d ... %d blocks read: OK' % (
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devid, sector, count_sectors, count_sectors)
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assert good_response in response
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# Check target RAM
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if expected_crc32:
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if has_cmd_crc32:
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cmd = 'crc32 %s 0x%x' % (addr, count_bytes)
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response = u_boot_console.run_command(cmd)
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assert expected_crc32 in response
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else:
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u_boot_console.log.warning('CONFIG_CMD_CRC32 != y: Skipping check')
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# Check if the command did not take too long
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if read_duration_max:
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elapsed = tend - tstart
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u_boot_console.log.info('Reading %d bytes took %f seconds' %
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(count_bytes, elapsed))
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assert elapsed <= (read_duration_max - 0.01)
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