[U-Boot] [PATCH v1] test/py: add MMC/SD block write test

[Peng Fan]

> Subject: [PATCH v1] test/py: add MMC/SD block write test
> 
> Add a standalone MMC block write test. This allows direct testing of MMC
> access rather than relying on doing so as a side-effect of e.g. DFU or UMS
> testing, which may not be enabled on all platforms.
> 
> Signed-off-by: Jean-Jacques Hiblot <jjhiblot at ti.com>
> 
> ---
> This patch relies on patch "cmd: mem: Add a command to fill the memory
> with random data".
> 
>  test/py/tests/test_mmc_wr.py | 105
> +++++++++++++++++++++++++++++++++++
>  1 file changed, 105 insertions(+)
>  create mode 100644 test/py/tests/test_mmc_wr.py
> 
> diff --git a/test/py/tests/test_mmc_wr.py b/test/py/tests/test_mmc_wr.py
> new file mode 100644 index 0000000000..601279a6a4
> --- /dev/null
> +++ b/test/py/tests/test_mmc_wr.py
> @@ -0,0 +1,105 @@
> +# SPDX-License-Identifier: GPL-2.0
> +# Copyright (c) 2019, Texas Instrument
> +# Author: Jean-Jacques Hiblot <jjhiblot at ti.com>
> +
> +# Test U-Boot's "mmc write" command. The test generates random data,
> +writes it # to the eMMC or SD card, then reads it back and performs a
> comparison.
> +
> +import pytest
> +import u_boot_utils
> +
> +"""
> +This test relies on boardenv_* to containing configuration values to
> +define which MMC devices should be tested. For example:
> +
> +env__mmc_wr_configs = (
> +    {
> +        "fixture_id": "emmc-boot0",
> +        "is_emmc": True,
> +        "devid": 1,
> +        "partid": 1,
> +        "sector": 0x10,
> +        "count": 100,
> +        "test_iterations": 50,
> +    },
> +    {
> +        "fixture_id": "emmc-boot1",
> +        "is_emmc": True,
> +        "devid": 1,
> +        "partid": 2,
> +        "sector": 0x10,
> +        "count": 100,
> +        "test_iterations": 50,
> +    },
> +)
> +
> +"""
> +
> + at pytest.mark.buildconfigspec('cmd_mmc','cmd_memory')
> +def test_mmc_wr(u_boot_console, env__mmc_wr_config):
> +    """Test the "mmc write" command.
> +
> +    Args:
> +        u_boot_console: A U-Boot console connection.
> +        env__mmc_wr_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_wr_config['is_emmc']
> +    devid = env__mmc_wr_config['devid']
> +    partid = env__mmc_wr_config.get('partid', 0)
> +    sector = env__mmc_wr_config.get('sector', 0)
> +    count_sectors = env__mmc_wr_config.get('count', 1)
> +    test_iterations = env__mmc_wr_config.get('test_iterations', 1)
> +
> +
> +    count_bytes = count_sectors * 512
> +    bcfg = u_boot_console.config.buildconfig
> +    ram_base = u_boot_utils.find_ram_base(u_boot_console)
> +    src_addr = '0x%08x' % ram_base
> +    dst_addr = '0x%08x' % (ram_base + count_bytes)
> +
> +
> +    for i in range(test_iterations):
> +	# Generate random data
> +	cmd = 'random %s %x' % (src_addr, count_bytes)
> +	response = u_boot_console.run_command(cmd)
> +	good_response = '%d bytes filled with random data' % (count_bytes)
> +	assert good_response in response
> +
> +	# 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
> +
> +	# Write data
> +	cmd = 'mmc write %s %x %x' % (src_addr, sector, count_sectors)
> +	response = u_boot_console.run_command(cmd)
> +	good_response = 'MMC write: dev # %d, block # %d, count %d ... %d
> blocks written: OK' % (
> +		devid, sector, count_sectors, count_sectors)
> +	assert good_response in response
> +
> +	# Read data
> +	cmd = 'mmc read %s %x %x' % (dst_addr, sector, count_sectors)
> +	response = u_boot_console.run_command(cmd)
> +	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
> +
> +	# Compare src and dst data
> +	cmd = 'cmp.b %s %s %x' % (src_addr, dst_addr, count_bytes)
> +	response = u_boot_console.run_command(cmd)
> +	good_response = 'Total of %d byte(s) were the same' % (count_bytes)
> +	assert good_response in response

Applied to mmc/master.

Thanks,
Peng

> --
> 2.17.1