memc: stm32_xspi_psram: avoid XSPIM_Config if running from flash

Avoid calling the HAL_XSPIM_Config function if the app is running
from flash in order to avoid locking since HAL_XSPIM_Config is once
turning off each XSPI instance when performing the configuration.

Signed-off-by: Alain Volmat <[email protected]>

Author: Alain Volmat

drivers/memc/memc_stm32_xspi_psram.c

@@ -217,7 +217,9 @@ static int memc_stm32_xspi_psram_init(const struct device *dev)
 	struct memc_stm32_xspi_psram_data *dev_data = dev->data;
 	XSPI_HandleTypeDef *hxspi = &dev_data->hxspi;
 	uint32_t ahb_clock_freq;
+#ifndef CONFIG_STM32_APP_IN_EXT_FLASH
 	XSPIM_CfgTypeDef cfg = {0};
+#endif
 	XSPI_RegularCmdTypeDef cmd = {0};
 	XSPI_MemoryMappedTypeDef mem_mapped_cfg = {0};
 	uint32_t prescaler = STM32_XSPI_CLOCK_PRESCALER_MIN;
@@ -295,6 +297,11 @@ static int memc_stm32_xspi_psram_init(const struct device *dev)
 		return -EIO;
 	}
 
+#ifndef CONFIG_STM32_APP_IN_EXT_FLASH
+	/*
+	 * Do not configure the XSPIManager if running on the ext flash
+	 * since this includes stopping each XSPI instance during configuration
+	 */
 	if (hxspi->Instance == XSPI1) {
 		cfg.IOPort = HAL_XSPIM_IOPORT_1;
 	} else if (hxspi->Instance == XSPI2) {
@@ -306,6 +313,7 @@ static int memc_stm32_xspi_psram_init(const struct device *dev)
 		LOG_ERR("XSPIMgr Init failed");
 		return -EIO;
 	}
+#endif
 
 	/* Configure AP memory registers */
 	ret = ap_memory_configure(hxspi);