diff --git a/ports/raspberrypi/boards/adafruit_feather_rp2040/mpconfigboard.h b/ports/raspberrypi/boards/adafruit_feather_rp2040/mpconfigboard.h
index 6a2d063d79..f82f6b6a74 100644
--- a/ports/raspberrypi/boards/adafruit_feather_rp2040/mpconfigboard.h
+++ b/ports/raspberrypi/boards/adafruit_feather_rp2040/mpconfigboard.h
@@ -12,3 +12,6 @@
 
 // #define DEFAULT_UART_BUS_RX (&pin_PA11)
 // #define DEFAULT_UART_BUS_TX (&pin_PA10)
+
+// Flash chip is GD25Q32 connected over QSPI
+#define TOTAL_FLASH_SIZE 4 * 1024 * 1024
diff --git a/ports/raspberrypi/boards/qtpy_rp2040/mpconfigboard.h b/ports/raspberrypi/boards/qtpy_rp2040/mpconfigboard.h
index 26abe8a835..85398d5e96 100644
--- a/ports/raspberrypi/boards/qtpy_rp2040/mpconfigboard.h
+++ b/ports/raspberrypi/boards/qtpy_rp2040/mpconfigboard.h
@@ -12,3 +12,6 @@
 
 // #define DEFAULT_UART_BUS_RX (&pin_PA11)
 // #define DEFAULT_UART_BUS_TX (&pin_PA10)
+
+// Flash chip is GD25Q32 connected over QSPI
+#define TOTAL_FLASH_SIZE 4 * 1024 * 1024
diff --git a/ports/raspberrypi/boards/raspberry_pi_pico/mpconfigboard.h b/ports/raspberrypi/boards/raspberry_pi_pico/mpconfigboard.h
index 4b0a220287..316692dd91 100644
--- a/ports/raspberrypi/boards/raspberry_pi_pico/mpconfigboard.h
+++ b/ports/raspberrypi/boards/raspberry_pi_pico/mpconfigboard.h
@@ -13,3 +13,6 @@
 
 // #define DEFAULT_UART_BUS_RX (&pin_PA11)
 // #define DEFAULT_UART_BUS_TX (&pin_PA10)
+
+// Flash chip is W25Q16JVUXIQ connected over QSPI
+#define TOTAL_FLASH_SIZE 2 * 1024 * 1024
diff --git a/ports/raspberrypi/supervisor/internal_flash.c b/ports/raspberrypi/supervisor/internal_flash.c
index d333830de9..95c1fdd75e 100644
--- a/ports/raspberrypi/supervisor/internal_flash.c
+++ b/ports/raspberrypi/supervisor/internal_flash.c
@@ -46,9 +46,6 @@
 
 #define RESERVED_FLASH 1 * 1024 * 1024
 
-// TODO: Parameterize flash size based on the configured flash.
-#define TOTAL_FLASH_SIZE 2 * 1024 * 1024
-
 // TODO: Split the caching out of supervisor/shared/external_flash so we can use it.
 #define SECTOR_SIZE 4096
 #define NO_CACHE 0xffffffff