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