[nrf noup] drivers: flash: align handling reset pin to SDP MSPI

Align handling reset pin to SDP MSPI so that it would work with
nRF54L15 DK flash, which has RESET pin the same as one of data
pins (D3).

Signed-off-by: Magdalena Pastula <[email protected]>

Author: magp-nordic

drivers/flash/flash_mspi_nor.c

@@ -13,6 +13,10 @@
 #include <zephyr/pm/device.h>
 #include <zephyr/pm/device_runtime.h>
 
+#if DT_ANY_INST_HAS_PROP_STATUS_OKAY(reset_gpios) && defined(CONFIG_MSPI_NRFE)
+#include <drivers/mspi/nrf_mspi.h>
+#endif
+
 #include "jesd216.h"
 #include "spi_nor.h"
 
@@ -22,6 +26,10 @@ LOG_MODULE_REGISTER(flash_mspi_nor, CONFIG_FLASH_LOG_LEVEL);
 #define WITH_RESET_GPIO 1
 #endif
 
+#if defined(WITH_RESET_GPIO) && defined(CONFIG_MSPI_NRFE)
+#define SDP_MSPI_WITH_RESET 1
+#endif
+
 #define FLASH_MX25R_LH_MASK BIT(1)
 
 static uint8_t hp_payload[3] = {SPI_NOR_QE_BIT, 0x0, FLASH_MX25R_LH_MASK};
@@ -229,6 +237,9 @@ struct flash_mspi_nor_config {
 	struct gpio_dt_spec reset;
 	uint32_t reset_pulse_us;
 	uint32_t reset_recovery_us;
+#if defined (SDP_MSPI_WITH_RESET)
+	uint8_t reset_port_num;
+#endif
 #endif
 #if defined(CONFIG_FLASH_PAGE_LAYOUT)
 	struct flash_pages_layout layout;
@@ -799,7 +810,39 @@ static int drv_init(const struct device *dev)
 		return -ENODEV;
 	}
 
-#if defined(WITH_RESET_GPIO)
+#if defined(SDP_MSPI_WITH_RESET)
+	if (dev_config->reset.port) {
+		if (!gpio_is_ready_dt(&dev_config->reset)) {
+			LOG_ERR("Device %s is not ready",
+				dev_config->reset.port->name);
+			return -ENODEV;
+		}
+
+		rc = nrf_mspi_reset_pin_config(dev_config->bus, &dev_config->mspi_id,
+					       &dev_config->reset, dev_config->reset_port_num,
+					       GPIO_OUTPUT_ACTIVE);
+
+		if (rc < 0) {
+			LOG_ERR("Failed to activate RESET: %d", rc);
+			return -EIO;
+		}
+
+		if (dev_config->reset_pulse_us != 0) {
+			k_busy_wait(dev_config->reset_pulse_us);
+		}
+
+		rc = nrf_mspi_reset_pin_set(dev_config->bus, &dev_config->reset,
+					    &dev_config->mspi_id, 0);
+		if (rc < 0) {
+			LOG_ERR("Failed to deactivate RESET: %d", rc);
+			return -EIO;
+		}
+
+		if (dev_config->reset_recovery_us != 0) {
+			k_busy_wait(dev_config->reset_recovery_us);
+		}
+	}
+#elif defined(WITH_RESET_GPIO)
 	if (dev_config->reset.port) {
 		if (!gpio_is_ready_dt(&dev_config->reset)) {
 			LOG_ERR("Device %s is not ready",
@@ -935,6 +978,9 @@ BUILD_ASSERT((FLASH_SIZE_INST(inst) % CONFIG_FLASH_MSPI_NOR_LAYOUT_PAGE_SIZE) ==
 				/ 1000,						\
 		.reset_recovery_us = DT_INST_PROP_OR(inst, t_reset_recovery, 0)	\
 				   / 1000,))					\
+	IF_ENABLED(SDP_MSPI_WITH_RESET,				                \
+		(.reset_port_num = DT_PROP_BY_PHANDLE_IDX(DT_DRV_INST(inst),    \
+				reset_gpios, 0, port),))                        \
 		FLASH_PAGE_LAYOUT_DEFINE(inst)					\
 		.jedec_id = DT_INST_PROP(inst, jedec_id),			\
 		.jedec_cmds = FLASH_CMDS(inst),					\