diff --git a/boards/holybro/kakuteh7mini/default.px4board b/boards/holybro/kakuteh7mini/default.px4board
index 5e2ea7fb71..ef755a1ab0 100644
--- a/boards/holybro/kakuteh7mini/default.px4board
+++ b/boards/holybro/kakuteh7mini/default.px4board
@@ -1,5 +1,6 @@
 CONFIG_BOARD_TOOLCHAIN="arm-none-eabi"
 CONFIG_BOARD_ARCHITECTURE="cortex-m7"
+CONFIG_BOARD_ROOT_PATH="/fs/flash"
 CONFIG_BOARD_SERIAL_GPS1="/dev/ttyS3"
 CONFIG_BOARD_SERIAL_TEL1="/dev/ttyS0"
 CONFIG_BOARD_SERIAL_TEL2="/dev/ttyS1"
diff --git a/boards/holybro/kakuteh7mini/init/rc.board_defaults b/boards/holybro/kakuteh7mini/init/rc.board_defaults
index f2534d1709..f9562dba85 100644
--- a/boards/holybro/kakuteh7mini/init/rc.board_defaults
+++ b/boards/holybro/kakuteh7mini/init/rc.board_defaults
@@ -32,11 +32,10 @@ param set-default CBRK_BUZZER 782090
 
 param set-default IMU_GYRO_RATEMAX 2000
 
+# W25N NAND flash with littlefs (128 MB): small log file size so we can keep
+# a few recent logs. Default SDLOG_ROTATE=90 keeps at least 10% free during
+# writing (no bad block management yet, so avoid hammering the flash near full).
+param set-default SDLOG_MAX_SIZE 30
+
 # Store missions in RAM
 param set-default SYS_DM_BACKEND 1
-
-# Ignore that there is no SD card
-param set-default COM_ARM_SDCARD 0
-
-# Disable logging
-param set-default SDLOG_BACKEND 0
diff --git a/boards/holybro/kakuteh7mini/nuttx-config/include/board_dma_map.h b/boards/holybro/kakuteh7mini/nuttx-config/include/board_dma_map.h
index d23e0d4120..870a3cc179 100644
--- a/boards/holybro/kakuteh7mini/nuttx-config/include/board_dma_map.h
+++ b/boards/holybro/kakuteh7mini/nuttx-config/include/board_dma_map.h
@@ -33,6 +33,9 @@
 
 #pragma once
 
+#define DMAMAP_SPI1_RX    DMAMAP_DMA12_SPI1RX_0 /* DMA1 */
+#define DMAMAP_SPI1_TX    DMAMAP_DMA12_SPI1TX_0 /* DMA1 */
+
 #define DMAMAP_SPI4_RX    DMAMAP_DMA12_SPI4RX_1 /* DMA2 */
 #define DMAMAP_SPI4_TX    DMAMAP_DMA12_SPI4TX_1 /* DMA2 */
 
diff --git a/boards/holybro/kakuteh7mini/nuttx-config/nsh/defconfig b/boards/holybro/kakuteh7mini/nuttx-config/nsh/defconfig
index 4bdb66ac34..4c3a983148 100644
--- a/boards/holybro/kakuteh7mini/nuttx-config/nsh/defconfig
+++ b/boards/holybro/kakuteh7mini/nuttx-config/nsh/defconfig
@@ -98,6 +98,10 @@ CONFIG_FDCLONE_STDIO=y
 CONFIG_FS_BINFS=y
 CONFIG_FS_CROMFS=y
 CONFIG_FS_FAT=y
+CONFIG_FS_LITTLEFS=y
+CONFIG_FS_LITTLEFS_CACHE_SIZE_FACTOR=1
+CONFIG_FS_LITTLEFS_PROGRAM_SIZE_FACTOR=1
+CONFIG_FS_LITTLEFS_READ_SIZE_FACTOR=1
 CONFIG_FS_FATTIME=y
 CONFIG_FS_PROCFS=y
 CONFIG_FS_PROCFS_INCLUDE_PROGMEM=y
@@ -126,7 +130,8 @@ CONFIG_MTD=y
 CONFIG_MTD_BYTE_WRITE=y
 CONFIG_MTD_PARTITION=y
 CONFIG_MTD_PROGMEM=y
-CONFIG_MTD_RAMTRON=y
+# CONFIG_MTD_RAMTRON is not set
+CONFIG_MTD_W25N=y
 CONFIG_NAME_MAX=40
 CONFIG_NSH_ARCHINIT=y
 CONFIG_NSH_ARGCAT=y
@@ -135,7 +140,7 @@ CONFIG_NSH_CMDPARMS=y
 CONFIG_NSH_CROMFSETC=y
 CONFIG_NSH_LINELEN=128
 CONFIG_NSH_MAXARGUMENTS=15
-CONFIG_NSH_MMCSDSPIPORTNO=1
+# CONFIG_NSH_MMCSDSPIPORTNO is not set
 CONFIG_NSH_NESTDEPTH=8
 CONFIG_NSH_QUOTE=y
 CONFIG_NSH_ROMFSETC=y
@@ -148,9 +153,6 @@ CONFIG_PREALLOC_TIMERS=50
 CONFIG_PRIORITY_INHERITANCE=y
 CONFIG_PTHREAD_MUTEX_ROBUST=y
 CONFIG_PTHREAD_STACK_MIN=512
-CONFIG_RAMTRON_EMULATE_PAGE_SHIFT=5
-CONFIG_RAMTRON_EMULATE_SECTOR_SHIFT=5
-CONFIG_RAMTRON_SETSPEED=y
 CONFIG_RAM_SIZE=245760
 CONFIG_RAM_START=0x20010000
 CONFIG_RAW_BINARY=y
@@ -188,6 +190,7 @@ CONFIG_STM32H7_BKPSRAM=y
 CONFIG_STM32H7_DMA1=y
 CONFIG_STM32H7_DMA2=y
 CONFIG_STM32H7_DMACAPABLE=y
+CONFIG_STM32H7_DMAMUX1=y
 CONFIG_STM32H7_FLOWCONTROL_BROKEN=y
 CONFIG_STM32H7_I2C1=y
 CONFIG_STM32H7_I2C_DYNTIMEO=y
@@ -201,6 +204,8 @@ CONFIG_STM32H7_SDMMC1=y
 CONFIG_STM32H7_SERIALBRK_BSDCOMPAT=y
 CONFIG_STM32H7_SERIAL_DISABLE_REORDERING=y
 CONFIG_STM32H7_SPI1=y
+CONFIG_STM32H7_SPI1_DMA=y
+CONFIG_STM32H7_SPI1_DMA_BUFFER=4096
 CONFIG_STM32H7_SPI2=y
 CONFIG_STM32H7_SPI4=y
 CONFIG_STM32H7_SPI4_DMA=y
@@ -244,4 +249,5 @@ CONFIG_USBDEV=y
 CONFIG_USBDEV_BUSPOWERED=y
 CONFIG_USBDEV_MAXPOWER=500
 CONFIG_USEC_PER_TICK=1000
+CONFIG_W25N_SPIFREQUENCY=104000000
 CONFIG_WATCHDOG=y
diff --git a/boards/holybro/kakuteh7mini/src/init.c b/boards/holybro/kakuteh7mini/src/init.c
index 4691703e8f..1fc004fa46 100644
--- a/boards/holybro/kakuteh7mini/src/init.c
+++ b/boards/holybro/kakuteh7mini/src/init.c
@@ -59,6 +59,8 @@
 #include <nuttx/spi/spi.h>
 #include <nuttx/analog/adc.h>
 #include <nuttx/mm/gran.h>
+#include <nuttx/mtd/mtd.h>
+#include <nuttx/fs/fs.h>
 #include <chip.h>
 #include <stm32_uart.h>
 #include <arch/board/board.h>
@@ -231,15 +233,58 @@ __EXPORT int board_app_initialize(uintptr_t arg)
 		led_on(LED_RED);
 	}
 
-	// MARK: this will *not* work as the minis have a W25N NAND flash chip
-	/* Get the SPI port for the microSD slot */
-	struct spi_dev_s *spi_dev = stm32_spibus_initialize(CONFIG_NSH_MMCSDSPIPORTNO);
+#ifdef CONFIG_MTD_W25N
+	/* Initialize W25N01GV NAND Flash on SPI1 */
+	struct spi_dev_s *spi1 = stm32_spibus_initialize(1);
 
-	if (!spi_dev) {
-		syslog(LOG_ERR, "[boot] FAILED to initialize SPI port %d\n", CONFIG_NSH_MMCSDSPIPORTNO);
-		led_on(LED_BLUE);
+	if (!spi1) {
+		syslog(LOG_ERR, "[boot] FAILED to initialize SPI1 for W25N\n");
+		led_on(LED_RED);
+
+	} else {
+		struct mtd_dev_s *mtd = w25n_initialize(spi1, 0);
+
+		if (!mtd) {
+			syslog(LOG_ERR, "[boot] FAILED to initialize W25N MTD driver\n");
+			led_on(LED_RED);
+
+		} else {
+			int ret = register_mtddriver("/dev/mtd0", mtd, 0755, NULL);
+
+			if (ret < 0) {
+				syslog(LOG_ERR, "[boot] FAILED to register MTD driver: %d\n", ret);
+				led_on(LED_RED);
+
+			} else {
+				syslog(LOG_INFO, "[boot] W25N MTD registered at /dev/mtd0\n");
+
+				struct mtd_geometry_s geo;
+
+				if (mtd->ioctl(mtd, MTDIOC_GEOMETRY, (unsigned long)((uintptr_t)&geo)) == 0) {
+					syslog(LOG_INFO, "[boot] W25N: %lu erase blocks, %lu bytes/block, %lu total bytes\n",
+					       (unsigned long)geo.neraseblocks,
+					       (unsigned long)geo.erasesize,
+					       (unsigned long)geo.neraseblocks * (unsigned long)geo.erasesize);
+				}
+
+#ifdef CONFIG_FS_LITTLEFS
+				ret = nx_mount("/dev/mtd0", CONFIG_BOARD_ROOT_PATH, "littlefs", 0, "autoformat");
+
+				if (ret < 0) {
+					syslog(LOG_ERR, "[boot] FAILED to mount littlefs: %d\n", ret);
+					led_on(LED_RED);
+
+				} else {
+					syslog(LOG_INFO, "[boot] LittleFS mounted at %s\n", CONFIG_BOARD_ROOT_PATH);
+				}
+
+#endif
+			}
+		}
 	}
 
+#endif
+
 	up_udelay(20);
 
 #if defined(FLASH_BASED_PARAMS)
diff --git a/boards/holybro/kakuteh7mini/src/spi.cpp b/boards/holybro/kakuteh7mini/src/spi.cpp
index 462965df7e..1febbabc34 100644
--- a/boards/holybro/kakuteh7mini/src/spi.cpp
+++ b/boards/holybro/kakuteh7mini/src/spi.cpp
@@ -37,7 +37,7 @@
 
 constexpr px4_spi_bus_t px4_spi_buses[SPI_BUS_MAX_BUS_ITEMS] = {
 	initSPIBus(SPI::Bus::SPI1, {
-		initSPIDevice(SPIDEV_MMCSD(0), SPI::CS{GPIO::PortA, GPIO::Pin4})
+		initSPIDevice(SPIDEV_FLASH(0), SPI::CS{GPIO::PortA, GPIO::Pin4})  // W25N01GV NAND Flash
 	}),
 	initSPIBus(SPI::Bus::SPI2, {
 		initSPIDevice(DRV_OSD_DEVTYPE_ATXXXX, SPI::CS{GPIO::PortB, GPIO::Pin12}),