From 09da18deab8b56524934c9d1050edaaf53e2e8ae Mon Sep 17 00:00:00 2001 From: Jean-Jacques Hiblot Date: Mon, 17 Jun 2019 17:49:21 +0200 Subject: [PATCH] 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 Reviewed-by: Stephen Warren --- 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 0000000..601279a --- /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 + +# 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 -- 2.7.4