1# SPDX-License-Identifier: GPL-2.0 2# Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved. 3 4# Test U-Boot's "mmc read" command. The test reads data from the eMMC or SD 5# card, and validates the no errors occurred, and that the expected data was 6# read if the test configuration contains a CRC of the expected data. 7 8import pytest 9import u_boot_utils 10 11""" 12This test relies on boardenv_* to containing configuration values to define 13which MMC devices should be tested. For example: 14 15env__mmc_rd_configs = ( 16 { 17 "fixture_id": "emmc-boot0", 18 "is_emmc": True, 19 "devid": 0, 20 "partid": 1, 21 "sector": 0x10, 22 "count": 1, 23 }, 24 { 25 "fixture_id": "emmc-boot1", 26 "is_emmc": True, 27 "devid": 0, 28 "partid": 2, 29 "sector": 0x10, 30 "count": 1, 31 }, 32 { 33 "fixture_id": "emmc-data", 34 "is_emmc": True, 35 "devid": 0, 36 "partid": 0, 37 "sector": 0x10, 38 "count": 0x1000, 39 }, 40 { 41 "fixture_id": "sd-mbr", 42 "is_emmc": False, 43 "devid": 1, 44 "partid": None, 45 "sector": 0, 46 "count": 1, 47 "crc32": "8f6ecf0d", 48 }, 49 { 50 "fixture_id": "sd-large", 51 "is_emmc": False, 52 "devid": 1, 53 "partid": None, 54 "sector": 0x10, 55 "count": 0x1000, 56 }, 57) 58""" 59 60@pytest.mark.buildconfigspec('cmd_mmc') 61def test_mmc_rd(u_boot_console, env__mmc_rd_config): 62 """Test the "mmc read" command. 63 64 Args: 65 u_boot_console: A U-Boot console connection. 66 env__mmc_rd_config: The single MMC configuration on which 67 to run the test. See the file-level comment above for details 68 of the format. 69 70 Returns: 71 Nothing. 72 """ 73 74 is_emmc = env__mmc_rd_config['is_emmc'] 75 devid = env__mmc_rd_config['devid'] 76 partid = env__mmc_rd_config.get('partid', 0) 77 sector = env__mmc_rd_config.get('sector', 0) 78 count_sectors = env__mmc_rd_config.get('count', 1) 79 expected_crc32 = env__mmc_rd_config.get('crc32', None) 80 81 count_bytes = count_sectors * 512 82 bcfg = u_boot_console.config.buildconfig 83 has_cmd_memory = bcfg.get('config_cmd_memory', 'n') == 'y' 84 has_cmd_crc32 = bcfg.get('config_cmd_crc32', 'n') == 'y' 85 ram_base = u_boot_utils.find_ram_base(u_boot_console) 86 addr = '0x%08x' % ram_base 87 88 # Select MMC device 89 cmd = 'mmc dev %d' % devid 90 if is_emmc: 91 cmd += ' %d' % partid 92 response = u_boot_console.run_command(cmd) 93 assert 'no card present' not in response 94 if is_emmc: 95 partid_response = "(part %d)" % partid 96 else: 97 partid_response = "" 98 good_response = 'mmc%d%s is current device' % (devid, partid_response) 99 assert good_response in response 100 101 # Clear target RAM 102 if expected_crc32: 103 if has_cmd_memory and has_cmd_crc32: 104 cmd = 'mw.b %s 0 0x%x' % (addr, count_bytes) 105 u_boot_console.run_command(cmd) 106 107 cmd = 'crc32 %s 0x%x' % (addr, count_bytes) 108 response = u_boot_console.run_command(cmd) 109 assert expected_crc32 not in response 110 else: 111 u_boot_console.log.warning( 112 'CONFIG_CMD_MEMORY or CONFIG_CMD_CRC32 != y: Skipping RAM clear') 113 114 # Read data 115 cmd = 'mmc read %s %x %x' % (addr, sector, count_sectors) 116 response = u_boot_console.run_command(cmd) 117 good_response = 'MMC read: dev # %d, block # %d, count %d ... %d blocks read: OK' % ( 118 devid, sector, count_sectors, count_sectors) 119 assert good_response in response 120 121 # Check target RAM 122 if expected_crc32: 123 if has_cmd_crc32: 124 cmd = 'crc32 %s 0x%x' % (addr, count_bytes) 125 response = u_boot_console.run_command(cmd) 126 assert expected_crc32 in response 127 else: 128 u_boot_console.log.warning('CONFIG_CMD_CRC32 != y: Skipping check') 129