raspberrypi: use -O2, not default -O3, for a few boards

Author: dhalbert

ports/raspberrypi/boards/cytron_edu_pico_w/mpconfigboard.mk

@@ -34,6 +34,9 @@ CFLAGS += \
 # Must be accompanied by a linker script change
 CFLAGS += -DCIRCUITPY_FIRMWARE_SIZE='(1536 * 1024)'
 
+# The default is -O3. Change to -O2 because the build was overflowing.
+OPTIMIZATION_FLAGS = -O2
+
 # Include these Python libraries in firmware.
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_NeoPixel
 FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_Motor

ports/raspberrypi/boards/wiznet_w5100s_evb_pico/mpconfigboard.mk

@@ -12,3 +12,6 @@ CIRCUITPY__EVE = 1
 CIRCUITPY_FLOPPYIO = 0
 CIRCUITPY_SSL = 1
 CIRCUITPY_USB_HOST = 0
+
+# The default is -O3. Change to -O2 because the build was overflowing.
+OPTIMIZATION_FLAGS = -O2

ports/raspberrypi/boards/wiznet_w5100s_evb_pico2/mpconfigboard.mk

@@ -11,3 +11,6 @@ EXTERNAL_FLASH_DEVICES = "W25Q32JVxQ"
 
 CIRCUITPY__EVE = 1
 CIRCUITPY_SSL = 1
+
+# The default is -O3. Change to -O2 because the build was overflowing.
+OPTIMIZATION_FLAGS = -O2

ports/raspberrypi/boards/wiznet_w5500_evb_pico/mpconfigboard.mk

@@ -12,3 +12,6 @@ CIRCUITPY__EVE = 1
 CIRCUITPY_FLOPPYIO = 0
 CIRCUITPY_SSL = 1
 CIRCUITPY_USB_HOST = 0
+
+# The default is -O3. Change to -O2 because the build was overflowing.
+OPTIMIZATION_FLAGS = -O2

ports/raspberrypi/boards/wiznet_w5500_evb_pico2/mpconfigboard.mk

@@ -11,3 +11,6 @@ EXTERNAL_FLASH_DEVICES = "W25Q32JVxQ"
 
 CIRCUITPY__EVE = 1
 CIRCUITPY_SSL = 1
+
+# The default is -O3. Change to -O2 because the build was overflowing.
+OPTIMIZATION_FLAGS = -O2