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/* Copyright 2020 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "chip/stm32/flash-regs.h"
#include "flash.h"
#include "panic.h"
#include "test_util.h"
struct flash_info {
int num_flash_banks;
int write_protect_bank_offset;
int write_protect_bank_count;
};
#if defined(CHIP_VARIANT_STM32F412)
struct flash_info flash_info = {
.num_flash_banks = 12,
.write_protect_bank_offset = 0,
.write_protect_bank_count = 5,
};
#elif defined(CHIP_VARIANT_STM32H7X3)
struct flash_info flash_info = {
.num_flash_banks = 16,
.write_protect_bank_offset = 0,
.write_protect_bank_count = 6,
};
#else
#error "Flash info not defined for this chip. Please add it."
#endif
test_static int test_lock_option_bytes(void)
{
TEST_EQ(flash_option_bytes_locked(), true, "%d");
unlock_flash_option_bytes();
TEST_EQ(flash_option_bytes_locked(), false, "%d");
lock_flash_option_bytes();
TEST_EQ(flash_option_bytes_locked(), true, "%d");
unlock_flash_option_bytes();
TEST_EQ(flash_option_bytes_locked(), false, "%d");
return EC_SUCCESS;
}
test_static int test_disable_option_bytes(void)
{
TEST_EQ(flash_option_bytes_locked(), false, "%d");
disable_flash_option_bytes();
TEST_EQ(flash_option_bytes_locked(), true, "%d");
/* Since we've disabled the option bytes we'll get a bus fault. */
ignore_bus_fault(1);
unlock_flash_option_bytes();
ignore_bus_fault(0);
/* Option bytes should still be locked. */
TEST_EQ(flash_option_bytes_locked(), true, "%d");
return EC_SUCCESS;
}
test_static int test_lock_flash_control_register(void)
{
TEST_EQ(flash_control_register_locked(), true, "%d");
unlock_flash_control_register();
TEST_EQ(flash_control_register_locked(), false, "%d");
lock_flash_control_register();
TEST_EQ(flash_control_register_locked(), true, "%d");
unlock_flash_control_register();
TEST_EQ(flash_control_register_locked(), false, "%d");
return EC_SUCCESS;
}
test_static int test_disable_flash_control_register(void)
{
TEST_EQ(flash_control_register_locked(), false, "%d");
disable_flash_control_register();
TEST_EQ(flash_control_register_locked(), true, "%d");
/* Since we've disabled the option bytes we'll get a bus fault. */
ignore_bus_fault(1);
unlock_flash_control_register();
ignore_bus_fault(0);
/* Control register should still be locked. */
TEST_EQ(flash_control_register_locked(), true, "%d");
return EC_SUCCESS;
}
test_static int test_flash_config(void)
{
TEST_EQ(crec_flash_total_banks(), flash_info.num_flash_banks, "%d");
TEST_EQ(WP_BANK_OFFSET, flash_info.write_protect_bank_offset, "%d");
TEST_EQ(WP_BANK_COUNT, flash_info.write_protect_bank_count, "%d");
return EC_SUCCESS;
}
void run_test(int argc, const char **argv)
{
ccprintf("Running flash physical test\n");
RUN_TEST(test_flash_config);
RUN_TEST(test_lock_option_bytes);
RUN_TEST(test_disable_option_bytes);
RUN_TEST(test_lock_flash_control_register);
RUN_TEST(test_disable_flash_control_register);
test_print_result();
}
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