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# SPDX-License-Identifier: GPL-2.0
# Copyright (c) 2019, Texas Instrument
# Author: Jean-Jacques Hiblot <jjhiblot@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,
},
)
"""
@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
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