mcuboot XIP and MIMXRT1166

[rtborg]

I'm having issues with mcuboot and MIMXRT1166 using XIP octal flash. When running either mcuboot or application, there are no problems. However when using mcuboot to load application, control is transferred correctly, then application initializes peripherals and crashes after configuring memory in memc_flexspi_set_device_config. The code that initializes the flash is:

	if (!device_is_ready(data->controller)) {
		LOG_ERR("Controller device not ready");
		return -ENODEV;
	}

	if (memc_flexspi_is_running_xip(data->controller)) {
		/* Wait for bus idle before configuring */
		memc_flexspi_wait_bus_idle(data->controller);
	}

	if (memc_flexspi_set_device_config(
		    data->controller, &data->config, (const uint32_t *)flash_flexspi_nor_lut_,
		    sizeof(flash_flexspi_nor_lut_) / MEMC_FLEXSPI_CMD_SIZE, data->port)) {
		LOG_ERR("Could not set device configuration");
		return -EINVAL;
	}

	memc_flexspi_reset(data->controller);

When I comment out the call to memc_flexspi_set_device_config, mcuboot chain-loads the application, which runs without crashing.

My understanding is that the application gets a clean start and needs to re-initialize each peripheral, which is what I am trying to do. However it looks like that's not correct as application cannot start after being chain loaded.

[rtborg]

The issue has been found - bootloader and application have used different flash lookup tables (bootloader has used XIP and flash has used DDR).