Add test cases for sf commands to verify various SPI flash operations
such as erase, write and read. It also adds qspi lock unlock cases.
This test relies on boardenv_* configurations to run it for different
SPI flash family such as single SPI, QSPI, and OSPI.
Signed-off-by: Love Kumar <love.kumar(a)amd.com>
---
Changes in v2:
- Fix the pylint errors
- Re-order/organize the tests
---
test/py/tests/test_spi.py | 680 ++++++++++++++++++++++++++++++++++++++
1 file changed, 680 insertions(+)
create mode 100644 test/py/tests/test_spi.py
diff --git a/test/py/tests/test_spi.py b/test/py/tests/test_spi.py
new file mode 100644
index 000000000000..4774b4151b4e
--- /dev/null
+++ b/test/py/tests/test_spi.py
@@ -0,0 +1,680 @@
+# SPDX-License-Identifier: GPL-2.0
+# (C) Copyright 2024, Advanced Micro Devices, Inc.
+
+"""
+Note: This test relies on boardenv_* containing configuration values to define
+spi minimum and maximum frequnecies at which the flash part can operate on and
+these tests run at 5 different spi frequnecy randomised values in the range.
+It also defines the SPI bus number containing the SPI-flash chip, SPI
+chip-select, SPI mode, SPI flash part name and timeout parameters. If minimum
+and maximum frequency is not defined, it will run on freq 0 by default.
+
+Without the boardenv_* configuration, this test will be automatically skipped.
+
+It also relies on configuration values for supported flashes for lock and
+unlock cases for SPI family flash. It will run lock-unlock cases only for the
+supported flash parts.
+
+Example:
+env__spi_device_test = {
+ 'bus': 0,
+ 'chip_select': 0,
+ 'min_freq': 10000000,
+ 'max_freq': 100000000,
+ 'mode': 0,
+ 'part_name': 'n25q00a',
+ 'timeout': 100000,
+ 'iteration': 5,
+}
+
+env__spi_lock_unlock = {
+ 'supported_flash': 'mt25qu512a, n25q00a, n25q512ax3',
+}
+"""
+
+import random
+import re
+import pytest
+import u_boot_utils
+
+SPI_DATA = {}
+EXPECTED_ERASE = 'Erased: OK'
+EXPECTED_WRITE = 'Written: OK'
+EXPECTED_READ = 'Read: OK'
+EXPECTED_ERASE_ERRORS = [
+ 'Erase operation failed',
+ 'Attempted to modify a protected sector',
+ 'Erased: ERROR',
+ 'is protected and cannot be erased',
+ 'ERROR: flash area is locked',
+]
+EXPECTED_WRITE_ERRORS = [
+ 'ERROR: flash area is locked',
+ 'Program operation failed',
+ 'Attempted to modify a protected sector',
+ 'Written: ERROR',
+]
+
+def get_params_spi(u_boot_console):
+ ''' Get SPI device test parameters from boardenv file '''
+ f = u_boot_console.config.env.get('env__spi_device_test', None)
+ if not f:
+ pytest.skip('No env file to read for SPI family device test')
+
+ bus = f.get('bus', 0)
+ cs = f.get('chip_select', 0)
+ mode = f.get('mode', 0)
+ part_name = f.get('part_name', None)
+ timeout = f.get('timeout', None)
+
+ if not part_name:
+ pytest.skip('No env file to read SPI family flash part name')
+
+ return bus, cs, mode, part_name, timeout
+
+def spi_find_freq_range(u_boot_console):
+ '''Find out minimum and maximum frequnecies that SPI device can operate'''
+ f = u_boot_console.config.env.get('env__spi_device_test', None)
+ if not f:
+ pytest.skip('No env file to read for SPI family device test')
+
+ min_f = f.get('min_freq', None)
+ max_f = f.get('max_freq', None)
+ iterations = f.get('iteration', 1)
+
+ if not min_f:
+ min_f = 0
+ if not max_f:
+ max_f = 0
+
+ max_f = max(max_f, min_f)
+
+ return min_f, max_f, iterations
+
+def spi_pre_commands(u_boot_console, freq):
+ ''' Find out SPI family flash memory parameters '''
+ bus, cs, mode, part_name, timeout = get_params_spi(u_boot_console)
+
+ output = u_boot_console.run_command(f'sf probe {bus}:{cs} {freq} {mode}')
+ if not 'SF: Detected' in output:
+ pytest.fail('No SPI device available')
+
+ if not part_name in output:
+ pytest.fail('SPI flash part name not recognized')
+
+ m = re.search('page size (.+?) Bytes', output)
+ if m:
+ try:
+ page_size = int(m.group(1))
+ except ValueError:
+ pytest.fail('SPI page size not recognized')
+
+ m = re.search('erase size (.+?) KiB', output)
+ if m:
+ try:
+ erase_size = int(m.group(1))
+ except ValueError:
+ pytest.fail('SPI erase size not recognized')
+
+ erase_size *= 1024
+
+ m = re.search('total (.+?) MiB', output)
+ if m:
+ try:
+ total_size = int(m.group(1))
+ except ValueError:
+ pytest.fail('SPI total size not recognized')
+
+ total_size *= 1024 * 1024
+
+ m = re.search('Detected (.+?) with', output)
+ if m:
+ try:
+ flash_part = m.group(1)
+ assert flash_part == part_name
+ except ValueError:
+ pytest.fail('SPI flash part not recognized')
+
+ global SPI_DATA
+ SPI_DATA = {
+ 'page_size': page_size,
+ 'erase_size': erase_size,
+ 'total_size': total_size,
+ 'flash_part': flash_part,
+ 'timeout': timeout,
+ }
+
+def get_page_size():
+ ''' Get the SPI page size from spi data '''
+ return SPI_DATA['page_size']
+
+def get_erase_size():
+ ''' Get the SPI erase size from spi data '''
+ return SPI_DATA['erase_size']
+
+def get_total_size():
+ ''' Get the SPI total size from spi data '''
+ return SPI_DATA['total_size']
+
+def get_flash_part():
+ ''' Get the SPI flash part name from spi data '''
+ return SPI_DATA['flash_part']
+
+def get_timeout():
+ ''' Get the SPI timeout from spi data '''
+ return SPI_DATA['timeout']
+
+def spi_erase_block(u_boot_console, erase_size, total_size):
+ ''' Erase SPI flash memory block wise '''
+ for start in range(0, total_size, erase_size):
+ output = u_boot_console.run_command(f'sf erase {hex(start)} {hex(erase_size)}')
+ assert EXPECTED_ERASE in output
+
+(a)pytest.mark.buildconfigspec('cmd_sf')
+def test_spi_erase_block(u_boot_console):
+ ''' Test case to check SPI erase functionality by erasing memory regions
+ block-wise '''
+
+ min_f, max_f, loop = spi_find_freq_range(u_boot_console)
+ i = 0
+ while i < loop:
+ spi_pre_commands(u_boot_console, random.randint(min_f, max_f))
+ spi_erase_block(u_boot_console, get_erase_size(), get_total_size())
+ i = i + 1
+
+def spi_write_twice(u_boot_console, page_size, erase_size, total_size, timeout):
+ ''' Random write till page size, random till size and full size '''
+ addr = u_boot_utils.find_ram_base(u_boot_console)
+
+ old_size = 0
+ for size in (
+ random.randint(4, page_size),
+ random.randint(page_size, total_size),
+ total_size,
+ ):
+ offset = random.randint(4, page_size)
+ offset = offset & ~3
+ size = size & ~3
+ size = size - old_size
+ output = u_boot_console.run_command(f'crc32 {hex(addr + total_size)} {hex(size)}')
+ m = re.search('==> (.+?)$', output)
+ if not m:
+ pytest.fail('CRC32 failed')
+
+ expected_crc32 = m.group(1)
+ if old_size % page_size:
+ old_size = int(old_size / page_size)
+ old_size *= page_size
+
+ if size % erase_size:
+ erasesize = int(size / erase_size + 1)
+ erasesize *= erase_size
+
+ eraseoffset = int(old_size / erase_size)
+ eraseoffset *= erase_size
+
+ timeout = 100000000
+ with u_boot_console.temporary_timeout(timeout):
+ output = u_boot_console.run_command(
+ f'sf erase {hex(eraseoffset)} {hex(erasesize)}'
+ )
+ assert EXPECTED_ERASE in output
+
+ with u_boot_console.temporary_timeout(timeout):
+ output = u_boot_console.run_command(
+ f'sf write {hex(addr + total_size)} {hex(old_size)} {hex(size)}'
+ )
+ assert EXPECTED_WRITE in output
+ with u_boot_console.temporary_timeout(timeout):
+ output = u_boot_console.run_command(
+ f'sf read {hex(addr + total_size + offset)} {hex(old_size)} {hex(size)}'
+ )
+ assert EXPECTED_READ in output
+ output = u_boot_console.run_command(
+ f'crc32 {hex(addr + total_size + offset)} {hex(size)}'
+ )
+ assert expected_crc32 in output
+ old_size = size
+
+(a)pytest.mark.buildconfigspec('cmd_bdi')
+(a)pytest.mark.buildconfigspec('cmd_sf')
+(a)pytest.mark.buildconfigspec('cmd_memory')
+def test_spi_write_twice(u_boot_console):
+ ''' Test to write data with random size twice for SPI '''
+ min_f, max_f, loop = spi_find_freq_range(u_boot_console)
+ i = 0
+ while i < loop:
+ spi_pre_commands(u_boot_console, random.randint(min_f, max_f))
+ spi_write_twice(
+ u_boot_console,
+ get_page_size(),
+ get_erase_size(),
+ get_total_size(),
+ get_timeout()
+ )
+ i = i + 1
+
+def spi_write_continues(u_boot_console, page_size, erase_size, total_size, timeout):
+ ''' Write with random size of data to continue SPI write case '''
+ spi_erase_block(u_boot_console, erase_size, total_size)
+ addr = u_boot_utils.find_ram_base(u_boot_console)
+
+ output = u_boot_console.run_command(f'crc32 {hex(addr + 0x10000)} {hex(total_size)}')
+ m = re.search('==> (.+?)$', output)
+ if not m:
+ pytest.fail('CRC32 failed')
+ expected_crc32 = m.group(1)
+
+ old_size = 0
+ for size in (
+ random.randint(4, page_size),
+ random.randint(page_size, total_size),
+ total_size,
+ ):
+ size = size & ~3
+ size = size - old_size
+ with u_boot_console.temporary_timeout(timeout):
+ output = u_boot_console.run_command(
+ f'sf write {hex(addr + 0x10000 + old_size)} {hex(old_size)} {hex(size)}'
+ )
+ assert EXPECTED_WRITE in output
+ old_size += size
+
+ with u_boot_console.temporary_timeout(timeout):
+ output = u_boot_console.run_command(
+ f'sf read {hex(addr + 0x10000 + total_size)} 0 {hex(total_size)}'
+ )
+ assert EXPECTED_READ in output
+
+ output = u_boot_console.run_command(
+ f'crc32 {hex(addr + 0x10000 + total_size)} {hex(total_size)}'
+ )
+ assert expected_crc32 in output
+
+(a)pytest.mark.buildconfigspec('cmd_bdi')
+(a)pytest.mark.buildconfigspec('cmd_sf')
+(a)pytest.mark.buildconfigspec('cmd_memory')
+def test_spi_write_continues(u_boot_console):
+ ''' Test to write more random size data for SPI '''
+ min_f, max_f, loop = spi_find_freq_range(u_boot_console)
+ i = 0
+ while i < loop:
+ spi_pre_commands(u_boot_console, random.randint(min_f, max_f))
+ spi_write_twice(
+ u_boot_console,
+ get_page_size(),
+ get_erase_size(),
+ get_total_size(),
+ get_timeout(),
+ )
+ i = i + 1
+
+def spi_read_twice(u_boot_console, page_size, total_size, timeout):
+ ''' Read the whole SPI flash twice, random_size till full flash size,
+ random till page size '''
+ for size in random.randint(4, page_size), random.randint(4, total_size), total_size:
+ addr = u_boot_utils.find_ram_base(u_boot_console)
+ size = size & ~3
+ with u_boot_console.temporary_timeout(timeout):
+ output = u_boot_console.run_command(
+ f'sf read {hex(addr + total_size)} 0 {hex(size)}'
+ )
+ assert EXPECTED_READ in output
+ output = u_boot_console.run_command(f'crc32 {hex(addr + total_size)} {hex(size)}')
+ m = re.search('==> (.+?)$', output)
+ if not m:
+ pytest.fail('CRC32 failed')
+ expected_crc32 = m.group(1)
+ with u_boot_console.temporary_timeout(timeout):
+ output = u_boot_console.run_command(
+ f'sf read {hex(addr + total_size + 10)} 0 {hex(size)}'
+ )
+ assert EXPECTED_READ in output
+ output = u_boot_console.run_command(
+ f'crc32 {hex(addr + total_size + 10)} {hex(size)}'
+ )
+ assert expected_crc32 in output
+
+(a)pytest.mark.buildconfigspec('cmd_sf')
+(a)pytest.mark.buildconfigspec('cmd_bdi')
+(a)pytest.mark.buildconfigspec('cmd_memory')
+def test_spi_read_twice(u_boot_console):
+ ''' Test to read random data twice from SPI '''
+ min_f, max_f, loop = spi_find_freq_range(u_boot_console)
+ i = 0
+ while i < loop:
+ spi_pre_commands(u_boot_console, random.randint(min_f, max_f))
+ spi_read_twice(u_boot_console, get_page_size(), get_total_size(), get_timeout())
+ i = i + 1
+
+def spi_erase_all(u_boot_console, total_size, timeout):
+ ''' Erase the full chip SPI '''
+ start = 0
+ with u_boot_console.temporary_timeout(timeout):
+ output = u_boot_console.run_command(f'sf erase {start} {hex(total_size)}')
+ assert EXPECTED_ERASE in output
+
+(a)pytest.mark.buildconfigspec('cmd_sf')
+def test_spi_erase_all(u_boot_console):
+ ''' Test to check full chip erase for SPI '''
+ min_f, max_f, loop = spi_find_freq_range(u_boot_console)
+ i = 0
+ while i < loop:
+ spi_pre_commands(u_boot_console, random.randint(min_f, max_f))
+ spi_erase_all(u_boot_console, get_total_size(), get_timeout())
+ i = i + 1
+
+def flash_ops(
+ u_boot_console, ops, start, size, offset=0, exp_ret=0, exp_str='', not_exp_str=''
+):
+ ''' Flash operations: erase, write and read '''
+
+ f = u_boot_console.config.env.get('env__spi_device_test', None)
+ if not f:
+ timeout = 1000000
+
+ timeout = f.get('timeout', 1000000)
+
+ if ops == 'erase':
+ with u_boot_console.temporary_timeout(timeout):
+ output = u_boot_console.run_command(f'sf erase {hex(start)} {hex(size)}')
+ else:
+ with u_boot_console.temporary_timeout(timeout):
+ output = u_boot_console.run_command(
+ f'sf {ops} {hex(offset)} {hex(start)} {hex(size)}'
+ )
+
+ if exp_str:
+ assert exp_str in output
+ if not_exp_str:
+ assert not_exp_str not in output
+
+ ret_code = u_boot_console.run_command('echo $?')
+ if exp_ret >= 0:
+ assert ret_code.endswith(str(exp_ret))
+
+ return output, ret_code
+
+def spi_unlock_exit(u_boot_console, addr, size):
+ ''' Unlock the flash before making it fail '''
+ u_boot_console.run_command(f'sf protect unlock {hex(addr)} {hex(size)}')
+ assert False, 'FAIL: Flash lock is unable to protect the data!'
+
+def find_prot_region(lock_addr, lock_size):
+ ''' Get the protected and un-protected region of flash '''
+ total_size = get_total_size()
+ erase_size = get_erase_size()
+
+ if lock_addr < (total_size // 2):
+ sect_num = (lock_addr + lock_size) // erase_size
+ x = 1
+ while x < sect_num:
+ x *= 2
+ prot_start = 0
+ prot_size = x * erase_size
+ unprot_start = prot_start + prot_size
+ unprot_size = total_size - unprot_start
+ else:
+ sect_num = (total_size - lock_addr) // erase_size
+ x = 1
+ while x < sect_num:
+ x *= 2
+ prot_start = total_size - (x * erase_size)
+ prot_size = total_size - prot_start
+ unprot_start = 0
+ unprot_size = prot_start
+
+ return prot_start, prot_size, unprot_start, unprot_size
+
+def protect_ops(u_boot_console, lock_addr, lock_size, ops="unlock"):
+ ''' Run the command to lock or Unlock the flash '''
+ u_boot_console.run_command(f'sf protect {ops} {hex(lock_addr)} {hex(lock_size)}')
+ output = u_boot_console.run_command('echo $?')
+ if ops == "lock" and not output.endswith('0'):
+ u_boot_console.run_command(f'sf protect unlock {hex(lock_addr)} {hex(lock_size)}')
+ assert False, "sf protect lock command exits with non-zero return code"
+ assert output.endswith('0')
+
+def erase_write_ops(u_boot_console, start, size):
+ ''' Basic erase and write operation for flash '''
+ addr = u_boot_utils.find_ram_base(u_boot_console)
+ flash_ops(u_boot_console, 'erase', start, size, 0, 0, EXPECTED_ERASE)
+ flash_ops(u_boot_console, 'write', start, size, addr, 0, EXPECTED_WRITE)
+
+def spi_lock_unlock(u_boot_console, lock_addr, lock_size):
+ ''' Lock unlock operations for SPI family flash '''
+ addr = u_boot_utils.find_ram_base(u_boot_console)
+ erase_size = get_erase_size()
+
+ # Find the protected/un-protected region
+ prot_start, prot_size, unprot_start, unprot_size = find_prot_region(lock_addr, lock_size)
+
+ # Check erase/write operation before locking
+ erase_write_ops(u_boot_console, prot_start, prot_size)
+
+ # Locking the flash
+ protect_ops(u_boot_console, lock_addr, lock_size, 'lock')
+
+ # Check erase/write operation after locking
+ output, ret_code = flash_ops(u_boot_console, 'erase', prot_start, prot_size, 0, -1)
+ if not any(error in output for error in EXPECTED_ERASE_ERRORS) or ret_code.endswith(
+ '0'
+ ):
+ spi_unlock_exit(u_boot_console, lock_addr, lock_size)
+
+ output, ret_code = flash_ops(
+ u_boot_console, 'write', prot_start, prot_size, addr, -1
+ )
+ if not any(error in output for error in EXPECTED_WRITE_ERRORS) or ret_code.endswith(
+ '0'
+ ):
+ spi_unlock_exit(u_boot_console, lock_addr, lock_size)
+
+ # Check locked sectors
+ sect_lock_start = random.randrange(prot_start, (prot_start + prot_size), erase_size)
+ if prot_size > erase_size:
+ sect_lock_size = random.randrange(
+ erase_size, (prot_start + prot_size - sect_lock_start), erase_size
+ )
+ else:
+ sect_lock_size = erase_size
+ sect_write_size = random.randint(1, sect_lock_size)
+
+ output, ret_code = flash_ops(
+ u_boot_console, 'erase', sect_lock_start, sect_lock_size, 0, -1
+ )
+ if not any(error in output for error in EXPECTED_ERASE_ERRORS) or ret_code.endswith(
+ '0'
+ ):
+ spi_unlock_exit(u_boot_console, lock_addr, lock_size)
+
+ output, ret_code = flash_ops(
+ u_boot_console, 'write', sect_lock_start, sect_write_size, addr, -1
+ )
+ if not any(error in output for error in EXPECTED_WRITE_ERRORS) or ret_code.endswith(
+ '0'
+ ):
+ spi_unlock_exit(u_boot_console, lock_addr, lock_size)
+
+ # Check unlocked sectors
+ if unprot_size != 0:
+ sect_unlock_start = random.randrange(
+ unprot_start, (unprot_start + unprot_size), erase_size
+ )
+ if unprot_size > erase_size:
+ sect_unlock_size = random.randrange(
+ erase_size, (unprot_start + unprot_size - sect_unlock_start), erase_size
+ )
+ else:
+ sect_unlock_size = erase_size
+ sect_write_size = random.randint(1, sect_unlock_size)
+
+ output, ret_code = flash_ops(
+ u_boot_console, 'erase', sect_unlock_start, sect_unlock_size, 0, -1
+ )
+ if EXPECTED_ERASE not in output or ret_code.endswith('1'):
+ spi_unlock_exit(u_boot_console, lock_addr, lock_size)
+
+ output, ret_code = flash_ops(
+ u_boot_console, 'write', sect_unlock_start, sect_write_size, addr, -1
+ )
+ if EXPECTED_WRITE not in output or ret_code.endswith('1'):
+ spi_unlock_exit(u_boot_console, lock_addr, lock_size)
+
+ # Unlocking the flash
+ protect_ops(u_boot_console, lock_addr, lock_size, 'unlock')
+
+ # Check erase/write operation after un-locking
+ erase_write_ops(u_boot_console, prot_start, prot_size)
+
+ # Check previous locked sectors
+ sect_lock_start = random.randrange(prot_start, (prot_start + prot_size), erase_size)
+ if prot_size > erase_size:
+ sect_lock_size = random.randrange(
+ erase_size, (prot_start + prot_size - sect_lock_start), erase_size
+ )
+ else:
+ sect_lock_size = erase_size
+ sect_write_size = random.randint(1, sect_lock_size)
+
+ flash_ops(
+ u_boot_console, 'erase', sect_lock_start, sect_lock_size, 0, 0, EXPECTED_ERASE
+ )
+ flash_ops(
+ u_boot_console,
+ 'write',
+ sect_lock_start,
+ sect_write_size,
+ addr,
+ 0,
+ EXPECTED_WRITE,
+ )
+
+(a)pytest.mark.buildconfigspec('cmd_bdi')
+(a)pytest.mark.buildconfigspec('cmd_sf')
+(a)pytest.mark.buildconfigspec('cmd_memory')
+def test_spi_lock_unlock(u_boot_console):
+ ''' Test to check the lock-unlock functionality for SPI family flash '''
+ min_f, max_f, loop = spi_find_freq_range(u_boot_console)
+ flashes = u_boot_console.config.env.get('env__spi_lock_unlock', False)
+ if not flashes:
+ pytest.skip('No supported flash list for lock/unlock provided')
+
+ i = 0
+ while i < loop:
+ spi_pre_commands(u_boot_console, random.randint(min_f, max_f))
+ total_size = get_total_size()
+ flash_part = get_flash_part()
+
+ flashes_list = flashes.get('supported_flash', None).split(',')
+ flashes_list = [x.strip() for x in flashes_list]
+ if flash_part not in flashes_list:
+ pytest.skip('Detected flash does not support lock/unlock')
+
+ # For lower half of memory
+ lock_addr = random.randint(0, (total_size // 2) - 1)
+ lock_size = random.randint(1, ((total_size // 2) - lock_addr))
+ spi_lock_unlock(u_boot_console, lock_addr, lock_size)
+
+ # For upper half of memory
+ lock_addr = random.randint((total_size // 2), total_size - 1)
+ lock_size = random.randint(1, (total_size - lock_addr))
+ spi_lock_unlock(u_boot_console, lock_addr, lock_size)
+
+ # For entire flash
+ lock_addr = random.randint(0, total_size - 1)
+ lock_size = random.randint(1, (total_size - lock_addr))
+ spi_lock_unlock(u_boot_console, lock_addr, lock_size)
+
+ i = i + 1
+
+(a)pytest.mark.buildconfigspec('cmd_bdi')
+(a)pytest.mark.buildconfigspec('cmd_sf')
+(a)pytest.mark.buildconfigspec('cmd_memory')
+def test_spi_negative(u_boot_console):
+ ''' Negative tests for SPI '''
+ min_f, max_f, loop = spi_find_freq_range(u_boot_console)
+ spi_pre_commands(u_boot_console, random.randint(min_f, max_f))
+ total_size = get_total_size()
+ erase_size = get_erase_size()
+ page_size = get_page_size()
+ addr = u_boot_utils.find_ram_base(u_boot_console)
+ i = 0
+ while i < loop:
+ # Erase negative test
+ start = random.randint(0, total_size)
+ esize = erase_size
+
+ # If erasesize is not multiple of flash's erase size
+ while esize % erase_size == 0:
+ esize = random.randint(0, total_size - start)
+
+ error_msg = 'Erased: ERROR'
+ flash_ops(
+ u_boot_console, 'erase', start, esize, 0, 1, error_msg, EXPECTED_ERASE
+ )
+
+ # If eraseoffset exceeds beyond flash size
+ eoffset = random.randint(total_size, (total_size + int(0x1000000)))
+ error_msg = 'Offset exceeds device limit'
+ flash_ops(
+ u_boot_console, 'erase', eoffset, esize, 0, 1, error_msg, EXPECTED_ERASE
+ )
+
+ # If erasesize exceeds beyond flash size
+ esize = random.randint((total_size - start), (total_size + int(0x1000000)))
+ error_msg = 'ERROR: attempting erase past flash size'
+ flash_ops(
+ u_boot_console, 'erase', start, esize, 0, 1, error_msg, EXPECTED_ERASE
+ )
+
+ # If erase size is 0
+ esize = 0
+ error_msg = 'ERROR: Invalid size 0'
+ flash_ops(
+ u_boot_console, 'erase', start, esize, 0, 1, error_msg, EXPECTED_ERASE
+ )
+
+ # If erasesize is less than flash's page size
+ esize = random.randint(0, page_size)
+ start = random.randint(0, (total_size - page_size))
+ error_msg = 'Erased: ERROR'
+ flash_ops(
+ u_boot_console, 'erase', start, esize, 0, 1, error_msg, EXPECTED_ERASE
+ )
+
+ # Write/Read negative test
+ # if Write/Read size exceeds beyond flash size
+ offset = random.randint(0, total_size)
+ size = random.randint((total_size - offset), (total_size + int(0x1000000)))
+ error_msg = 'Size exceeds partition or device limit'
+ flash_ops(
+ u_boot_console, 'write', offset, size, addr, 1, error_msg, EXPECTED_WRITE
+ )
+ flash_ops(
+ u_boot_console, 'read', offset, size, addr, 1, error_msg, EXPECTED_READ
+ )
+
+ # if Write/Read offset exceeds beyond flash size
+ offset = random.randint(total_size, (total_size + int(0x1000000)))
+ size = random.randint(0, total_size)
+ error_msg = 'Offset exceeds device limit'
+ flash_ops(
+ u_boot_console, 'write', offset, size, addr, 1, error_msg, EXPECTED_WRITE
+ )
+ flash_ops(
+ u_boot_console, 'read', offset, size, addr, 1, error_msg, EXPECTED_READ
+ )
+
+ # if Write/Read size is 0
+ offset = random.randint(0, 2)
+ size = 0
+ error_msg = 'ERROR: Invalid size 0'
+ flash_ops(
+ u_boot_console, 'write', offset, size, addr, 1, error_msg, EXPECTED_WRITE
+ )
+ flash_ops(
+ u_boot_console, 'read', offset, size, addr, 1, error_msg, EXPECTED_READ
+ )
+
+ i = i + 1
--
2.25.1
