From bdb6f51e8bf387e6326ef2846df75711514bba8e Mon Sep 17 00:00:00 2001
From: David Sidrane <David.Sidrane@NscDg.com>
Date: Wed, 21 Jun 2023 02:57:09 -0700
Subject: [PATCH] px4 mtd:Support FlexSPI attached Devices

---
 platforms/common/include/px4_platform_common/px4_manifest.h | 1 +
 platforms/common/include/px4_platform_common/px4_mtd.h      | 2 ++
 platforms/nuttx/src/px4/common/px4_mtd.cpp                  | 3 +++
 3 files changed, 6 insertions(+)

diff --git a/platforms/common/include/px4_platform_common/px4_manifest.h b/platforms/common/include/px4_platform_common/px4_manifest.h
index bdb6ad1984..fc8341801c 100644
--- a/platforms/common/include/px4_platform_common/px4_manifest.h
+++ b/platforms/common/include/px4_platform_common/px4_manifest.h
@@ -49,6 +49,7 @@ typedef struct  {
 		I2C = 0,
 		SPI = 1,
 		ONCHIP = 2,
+		FLEXSPI = 3
 	} bus_type;
 
 	uint32_t devid;
diff --git a/platforms/common/include/px4_platform_common/px4_mtd.h b/platforms/common/include/px4_platform_common/px4_mtd.h
index 7313bd78a9..ce8e99013f 100644
--- a/platforms/common/include/px4_platform_common/px4_mtd.h
+++ b/platforms/common/include/px4_platform_common/px4_mtd.h
@@ -82,4 +82,6 @@ int px4_at24c_initialize(FAR struct i2c_master_s *dev,
 
 void px4_at24c_deinitialize(void);
 
+weak_function int flexspi_attach(mtd_instance_s *instance);
+
 __END_DECLS
diff --git a/platforms/nuttx/src/px4/common/px4_mtd.cpp b/platforms/nuttx/src/px4/common/px4_mtd.cpp
index f4b3476722..932e9fdad9 100644
--- a/platforms/nuttx/src/px4/common/px4_mtd.cpp
+++ b/platforms/nuttx/src/px4/common/px4_mtd.cpp
@@ -352,6 +352,9 @@ memoryout:
 		} else if (mtd_list->entries[num_entry]->device->bus_type == px4_mft_device_t::SPI) {
 			rv = ramtron_attach(*instances[i]);
 
+		} else if (mtd_list->entries[num_entry]->device->bus_type == px4_mft_device_t::FLEXSPI) {
+			rv = flexspi_attach(instances[i]);
+
 		} else if (mtd_list->entries[num_entry]->device->bus_type == px4_mft_device_t::ONCHIP) {
 			instances[i]->n_partitions_current++;
 			return 0;