diff --git a/sys/pic32/Config.generic b/sys/pic32/Config.generic
index 76e8ad4..2b300ed 100644
--- a/sys/pic32/Config.generic
+++ b/sys/pic32/Config.generic
@@ -142,24 +142,26 @@ signal          "SRAMC_WR"      pin RF0
 
 # picga - SPI block device
 controller      spi1                        # RAM disk: picga
-device          picga0  at spi1
+device          picga0  at spi1 pin RA4     # chip select signal
 options         "PICGA_BUS=SPI1CON"         # TODO: delete this option
-signal          "PICGA_CS" pin RA4
+signal          "PICGA_CS" pin RA4          # TODO: delete
 
 # mrams - SPI block device
 controller      spi1                        # RAM disk: mrams
 device          mrams0  at spi1
-options         "MRAMS_PORT=SPI1CON"        # TODO: delete this option
+                pins RA4,  RA2, RB14, RB12, # chip select signals
+                     RB10, RB11
 options         "MRAMS_CHIPS=6"             # number of chips
 options         "MRAMS_CHIPSIZE=512"        # chip size in kbytes
 options         "MRAMS_MHZ=10"              # speed 10 MHz
-signal          "MRAMS_CS0"     pin RA4
-signal          "MRAMS_CS1"     pin RA2
-signal          "MRAMS_CS2"     pin RB14
-signal          "MRAMS_CS3"     pin RB12
-signal          "MRAMS_CS4"     pin RB10
-signal          "MRAMS_CS5"     pin RB11
-signal          "MRAMS_LED0"    pin RF0
+options         "MRAMS_PORT=SPI1CON"        # TODO: delete this option
+signal          "MRAMS_CS0"     pin RA4     # TODO: delete
+signal          "MRAMS_CS1"     pin RA2     # TODO: delete
+signal          "MRAMS_CS2"     pin RB14    # TODO: delete
+signal          "MRAMS_CS3"     pin RB12    # TODO: delete
+signal          "MRAMS_CS4"     pin RB10    # TODO: delete
+signal          "MRAMS_CS5"     pin RB11    # TODO: delete
+signal          "MRAMS_LED0"    pin RF0     # optional LED indicators
 signal          "MRAMS_LED1"    pin RF1
 signal          "MRAMS_LED2"    pin RF2
 signal          "MRAMS_LED3"    pin RF3
@@ -168,28 +170,32 @@ signal          "MRAMS_LED5"    pin RF5
 
 # spirams - SPI block device
 controller      spi1                        # RAM disk: spirams
-device          spirams0  at spi1
-options         "SPIRAMS_PORT=SPI1CON"      # TODO: delete this option
+device          spirams0  at spi1           # chip select signals:
+                pins RF0,  RF1,  RF2,  RF3, # chip select signals
+                     RF4,  RF5,  RF6,  RF7,
+                     RF8,  RF9,  RF10, RF11,
+                     RF12, RF13, RF14, RF15
 options         "SPIRAMS_CHIPSIZE=128"      # chip size in kbytes
 options         "SPIRAMS_CHIPS=16"          # number of chips
 options         "SPIRAMS_MHZ=10"            # speed 10 MHz
-signal          "SPIRAMS_CS0"   pin RF0
-signal          "SPIRAMS_CS1"   pin RF1
-signal          "SPIRAMS_CS2"   pin RF2
-signal          "SPIRAMS_CS3"   pin RF3
-signal          "SPIRAMS_CS4"   pin RF4
-signal          "SPIRAMS_CS5"   pin RF5
-signal          "SPIRAMS_CS6"   pin RF6
-signal          "SPIRAMS_CS7"   pin RF7
-signal          "SPIRAMS_CS8"   pin RF8
-signal          "SPIRAMS_CS9"   pin RF9
-signal          "SPIRAMS_CS10"  pin RF10
-signal          "SPIRAMS_CS11"  pin RF11
-signal          "SPIRAMS_CS12"  pin RF12
-signal          "SPIRAMS_CS13"  pin RF13
-signal          "SPIRAMS_CS14"  pin RF14
-signal          "SPIRAMS_CS15"  pin RF15
-signal          "SPIRAMS_LED0"  pin RG0
+options         "SPIRAMS_PORT=SPI1CON"      # TODO: delete this option
+signal          "SPIRAMS_CS0"   pin RF0     # TODO: delete
+signal          "SPIRAMS_CS1"   pin RF1     # TODO: delete
+signal          "SPIRAMS_CS2"   pin RF2     # TODO: delete
+signal          "SPIRAMS_CS3"   pin RF3     # TODO: delete
+signal          "SPIRAMS_CS4"   pin RF4     # TODO: delete
+signal          "SPIRAMS_CS5"   pin RF5     # TODO: delete
+signal          "SPIRAMS_CS6"   pin RF6     # TODO: delete
+signal          "SPIRAMS_CS7"   pin RF7     # TODO: delete
+signal          "SPIRAMS_CS8"   pin RF8     # TODO: delete
+signal          "SPIRAMS_CS9"   pin RF9     # TODO: delete
+signal          "SPIRAMS_CS10"  pin RF10    # TODO: delete
+signal          "SPIRAMS_CS11"  pin RF11    # TODO: delete
+signal          "SPIRAMS_CS12"  pin RF12    # TODO: delete
+signal          "SPIRAMS_CS13"  pin RF13    # TODO: delete
+signal          "SPIRAMS_CS14"  pin RF14    # TODO: delete
+signal          "SPIRAMS_CS15"  pin RF15    # TODO: delete
+signal          "SPIRAMS_LED0"  pin RG0     # optional LED indicators
 signal          "SPIRAMS_LED1"  pin RG1
 signal          "SPIRAMS_LED2"  pin RG2
 signal          "SPIRAMS_LED3"  pin RG3
diff --git a/sys/pic32/fubarino/Config b/sys/pic32/fubarino/Config
index 6c2bc26..d1f9690 100644
--- a/sys/pic32/fubarino/Config
+++ b/sys/pic32/fubarino/Config
@@ -38,8 +38,12 @@ device          uartusb
 options         "USB_MAX_EP_NUMBER=3"
 options         "USB_NUM_STRING_DESCRIPTORS=3"
 
+# UART ports
+device          uart2                       # Pins RF4, RF5
+
 # SPI ports
 controller      spi2                        # SD card
+controller      spi3                        # Pins RD1, RD2, RD3
 
 # microSD card
 device          sd0     at spi2 pin RG9     # select pin
@@ -48,11 +52,13 @@ device          sd0     at spi2 pin RG9     # select pin
 # Flags define a mask of available pins
 # The following pins excluded:
 #   RG6, RG7, RG8, RG9 - spi2, SD card
+#   RD1, RD2, RD3      - spi3
+#   RF4, RF5           - uart2
 device          gpio1   flags 0xffff    # port B
 device          gpio2   flags 0xf000    # port C
-device          gpio3   flags 0x0fff    # port D
+device          gpio3   flags 0x0ff1    # port D
 device          gpio4   flags 0x00ff    # port E
-device          gpio5   flags 0x003b    # port F
+device          gpio5   flags 0x000b    # port F
 device          gpio6   flags 0x000c    # port G
 
 # ADC driver
@@ -60,6 +66,3 @@ device          adc
 
 # PWM driver
 device          pwm
-
-# GLCD driver
-device          glcd
diff --git a/sys/pic32/fubarino/Config-glcd b/sys/pic32/fubarino/Config-glcd
new file mode 100644
index 0000000..6c2bc26
--- /dev/null
+++ b/sys/pic32/fubarino/Config-glcd
@@ -0,0 +1,65 @@
+#
+# Fubarino SD board
+# =================
+# Console on USB.
+# For details, see https://github.com/RetroBSD/retrobsd/wiki/Board-Fubarino-SD
+#
+# To build the kernel, use:
+#   cd sys/pic32/fubarino
+#   kconfig Config
+#   make clean
+#   make
+#
+# Format of this file is described on page:
+# http://retrobsd.org/wiki/doku.php/doc/kconfig
+#
+architecture    "pic32"
+cpu             "PIC32MX7"                  # Processor variant
+board           "FUBARINO"                  # Board type
+ldscript        "max32/bootloader.ld"       # Linker script
+
+# Standard system options
+options         "CPU_KHZ=80000"             # Oscillator frequency of CPU core
+options         "BUS_KHZ=80000"             # Frequency of peripheral bus
+options         "BUS_DIV=1"                 # Bus clock divisor 1/2/4/8
+
+# LED
+signal          "LED_KERNEL"    pin RE5     # kernel activity indicator
+
+# Root filesystem at /dev/sd0a, swap at /dev/sd0b
+config          unix    root on sd0a
+                        swap on sd0b
+
+# Console options
+options         "CONS_MAJOR=UARTUSB_MAJOR"  # UARTUSB device
+
+# Virtual UART on USB
+device          uartusb
+options         "USB_MAX_EP_NUMBER=3"
+options         "USB_NUM_STRING_DESCRIPTORS=3"
+
+# SPI ports
+controller      spi2                        # SD card
+
+# microSD card
+device          sd0     at spi2 pin RG9     # select pin
+
+# General purpose I/O ports
+# Flags define a mask of available pins
+# The following pins excluded:
+#   RG6, RG7, RG8, RG9 - spi2, SD card
+device          gpio1   flags 0xffff    # port B
+device          gpio2   flags 0xf000    # port C
+device          gpio3   flags 0x0fff    # port D
+device          gpio4   flags 0x00ff    # port E
+device          gpio5   flags 0x003b    # port F
+device          gpio6   flags 0x000c    # port G
+
+# ADC driver
+device          adc
+
+# PWM driver
+device          pwm
+
+# GLCD driver
+device          glcd
diff --git a/sys/pic32/fubarino/Makefile b/sys/pic32/fubarino/Makefile
index e9ff7be..3223aec 100644
--- a/sys/pic32/fubarino/Makefile
+++ b/sys/pic32/fubarino/Makefile
@@ -1,7 +1,9 @@
 PARAM = -DFUBARINO
 PARAM += -DPIC32MX7
 PARAM += -DUARTUSB_ENABLED
+PARAM += -DUART2_ENABLED
 PARAM += -DSPI2_ENABLED
+PARAM += -DSPI3_ENABLED
 PARAM += -DSD_ENABLED
 PARAM += -DGPIO1_ENABLED
 PARAM += -DGPIO2_ENABLED
@@ -11,8 +13,6 @@ PARAM += -DGPIO5_ENABLED
 PARAM += -DGPIO6_ENABLED
 PARAM += -DADC_ENABLED
 PARAM += -DPWM_ENABLED
-PARAM += -DGLCD_ENABLED
-PARAM += -DLED_KERNEL_PORT=TRISE -DLED_KERNEL_PIN=5
 PARAM += -DUSB_NUM_STRING_DESCRIPTORS=3
 PARAM += -DUSB_MAX_EP_NUMBER=3
 PARAM += -DCONS_MAJOR=UARTUSB_MAJOR
@@ -63,8 +63,8 @@ OBJS = exec_aout.o exec_conf.o exec_elf.o exec_script.o exec_subr.o \
 	ufs_bio.o ufs_bmap.o ufs_dsort.o ufs_fio.o ufs_inode.o \
 	ufs_mount.o ufs_namei.o ufs_subr.o ufs_syscalls.o \
 	ufs_syscalls2.o vfs_vnops.o vm_sched.o vm_swap.o vm_swp.o adc.o \
-	clock.o cons.o devsw.o exception.o glcd.o gpio.o machdep.o mem.o \
-	pwm.o rd_sd.o signal.o spi.o spi_bus.o swap.o sysctl.o \
+	clock.o cons.o devsw.o exception.o gpio.o machdep.o mem.o pwm.o \
+	rd_sd.o signal.o spi.o spi_bus.o swap.o sysctl.o uart.o \
 	usb_device.o usb_function_cdc.o usb_uart.o 
 
 CFILES = $S/kernel/exec_aout.c $S/kernel/exec_conf.c $S/kernel/exec_elf.c \
@@ -89,10 +89,10 @@ CFILES = $S/kernel/exec_aout.c $S/kernel/exec_conf.c $S/kernel/exec_elf.c \
 	$S/kernel/vfs_vnops.c $S/kernel/vm_sched.c $S/kernel/vm_swap.c \
 	$S/kernel/vm_swp.c $S/pic32/adc.c $S/pic32/clock.c \
 	$S/pic32/cons.c $S/pic32/devsw.c $S/pic32/exception.c \
-	$S/pic32/glcd.c $S/pic32/gpio.c $S/pic32/machdep.c \
-	$S/pic32/mem.c $S/pic32/pwm.c $S/pic32/rd_sd.c $S/pic32/signal.c \
-	$S/pic32/spi.c $S/pic32/spi_bus.c $S/pic32/swap.c \
-	$S/pic32/sysctl.c $S/pic32/usb_device.c \
+	$S/pic32/gpio.c $S/pic32/machdep.c $S/pic32/mem.c $S/pic32/pwm.c \
+	$S/pic32/rd_sd.c $S/pic32/signal.c $S/pic32/spi.c \
+	$S/pic32/spi_bus.c $S/pic32/swap.c $S/pic32/sysctl.c \
+	$S/pic32/uart.c $S/pic32/usb_device.c \
 	$S/pic32/usb_function_cdc.c $S/pic32/usb_uart.c swapunix.c 
 
 # load lines for config "xxx" will be emitted as:
@@ -316,9 +316,6 @@ devsw.o: $S/pic32/devsw.c
 exception.o: $S/pic32/exception.c
 	${COMPILE_C}
 
-glcd.o: $S/pic32/glcd.c
-	${COMPILE_C}
-
 gpio.o: $S/pic32/gpio.c
 	${COMPILE_C}
 
@@ -349,6 +346,9 @@ swap.o: $S/pic32/swap.c
 sysctl.o: $S/pic32/sysctl.c
 	${COMPILE_C}
 
+uart.o: $S/pic32/uart.c
+	${COMPILE_C}
+
 usb_device.o: $S/pic32/usb_device.c
 	${COMPILE_C}
 
diff --git a/sys/pic32/sdxl/Config b/sys/pic32/sdxl/Config
index bd42beb..c1e8056 100644
--- a/sys/pic32/sdxl/Config
+++ b/sys/pic32/sdxl/Config
@@ -39,8 +39,12 @@ device          uartusb
 options         "USB_MAX_EP_NUMBER=3"
 options         "USB_NUM_STRING_DESCRIPTORS=3"
 
+# UART ports
+device          uart2                       # Pins RF4, RF5
+
 # SPI ports
 controller      spi2                        # SD card
+controller      spi3                        # Pins RD1, RD2, RD3
 
 # microSD card
 device          sd0     at spi2 pin RG9     # select pin
@@ -49,11 +53,13 @@ device          sd0     at spi2 pin RG9     # select pin
 # Flags define a mask of available pins
 # The following pins excluded:
 #   RG6, RG7, RG8, RG9 - spi2, SD card
+#   RD1, RD2, RD3      - spi3
+#   RF4, RF5           - uart2
 device          gpio1   flags 0xffff    # port B
 device          gpio2   flags 0xf000    # port C
-device          gpio3   flags 0x0fff    # port D
+device          gpio3   flags 0x0ff1    # port D
 device          gpio4   flags 0x00ff    # port E
-device          gpio5   flags 0x003b    # port F
+device          gpio5   flags 0x000b    # port F
 device          gpio6   flags 0x000c    # port G
 
 # ADC driver
@@ -61,6 +67,3 @@ device          adc
 
 # PWM driver
 device          pwm
-
-# GLCD driver
-device          glcd
diff --git a/sys/pic32/sdxl/Config-glcd b/sys/pic32/sdxl/Config-glcd
new file mode 100644
index 0000000..bd42beb
--- /dev/null
+++ b/sys/pic32/sdxl/Config-glcd
@@ -0,0 +1,66 @@
+#
+# Majenko SDXL board
+# ==================
+# Ardiuno-compatible bootloader.
+# Console on USB.
+# LED at pin E7 (label 23).
+#
+# To build the kernel, use:
+#   cd sys/pic32/sdxl
+#   kconfig Config
+#   make clean
+#   make
+#
+# Format of this file is described on page:
+# http://retrobsd.org/wiki/doku.php/doc/kconfig
+#
+architecture    "pic32"
+cpu             "PIC32MX7"                  # Processor variant
+board           "SDXL"                      # Board type
+ldscript        "max32/bootloader.ld"       # Linker script
+
+# Standard system options
+options         "CPU_KHZ=80000"             # Oscillator frequency of CPU core
+options         "BUS_KHZ=80000"             # Frequency of peripheral bus
+options         "BUS_DIV=1"                 # Bus clock divisor 1/2/4/8
+
+# LED
+signal          "LED_KERNEL"    pin RE7     # kernel activity indicator
+
+# Root filesystem at /dev/sd0a, swap at /dev/sd0b
+config          unix    root on sd0a
+                        swap on sd0b
+
+# Console options
+options         "CONS_MAJOR=UARTUSB_MAJOR"  # UARTUSB device
+
+# Virtual UART on USB
+device          uartusb
+options         "USB_MAX_EP_NUMBER=3"
+options         "USB_NUM_STRING_DESCRIPTORS=3"
+
+# SPI ports
+controller      spi2                        # SD card
+
+# microSD card
+device          sd0     at spi2 pin RG9     # select pin
+
+# General purpose I/O ports
+# Flags define a mask of available pins
+# The following pins excluded:
+#   RG6, RG7, RG8, RG9 - spi2, SD card
+device          gpio1   flags 0xffff    # port B
+device          gpio2   flags 0xf000    # port C
+device          gpio3   flags 0x0fff    # port D
+device          gpio4   flags 0x00ff    # port E
+device          gpio5   flags 0x003b    # port F
+device          gpio6   flags 0x000c    # port G
+
+# ADC driver
+device          adc
+
+# PWM driver
+device          pwm
+
+# GLCD driver
+device          glcd
diff --git a/sys/pic32/sdxl/Makefile b/sys/pic32/sdxl/Makefile
index c68c77f..b5cb18d 100644
--- a/sys/pic32/sdxl/Makefile
+++ b/sys/pic32/sdxl/Makefile
@@ -1,7 +1,9 @@
 PARAM = -DSDXL
 PARAM += -DPIC32MX7
 PARAM += -DUARTUSB_ENABLED
+PARAM += -DUART2_ENABLED
 PARAM += -DSPI2_ENABLED
+PARAM += -DSPI3_ENABLED
 PARAM += -DSD_ENABLED
 PARAM += -DGPIO1_ENABLED
 PARAM += -DGPIO2_ENABLED
@@ -11,8 +13,6 @@ PARAM += -DGPIO5_ENABLED
 PARAM += -DGPIO6_ENABLED
 PARAM += -DADC_ENABLED
 PARAM += -DPWM_ENABLED
-PARAM += -DGLCD_ENABLED
-PARAM += -DLED_KERNEL_PORT=TRISE -DLED_KERNEL_PIN=7
 PARAM += -DUSB_NUM_STRING_DESCRIPTORS=3
 PARAM += -DUSB_MAX_EP_NUMBER=3
 PARAM += -DCONS_MAJOR=UARTUSB_MAJOR
@@ -63,8 +63,8 @@ OBJS = exec_aout.o exec_conf.o exec_elf.o exec_script.o exec_subr.o \
 	ufs_bio.o ufs_bmap.o ufs_dsort.o ufs_fio.o ufs_inode.o \
 	ufs_mount.o ufs_namei.o ufs_subr.o ufs_syscalls.o \
 	ufs_syscalls2.o vfs_vnops.o vm_sched.o vm_swap.o vm_swp.o adc.o \
-	clock.o cons.o devsw.o exception.o glcd.o gpio.o machdep.o mem.o \
-	pwm.o rd_sd.o signal.o spi.o spi_bus.o swap.o sysctl.o \
+	clock.o cons.o devsw.o exception.o gpio.o machdep.o mem.o pwm.o \
+	rd_sd.o signal.o spi.o spi_bus.o swap.o sysctl.o uart.o \
 	usb_device.o usb_function_cdc.o usb_uart.o 
 
 CFILES = $S/kernel/exec_aout.c $S/kernel/exec_conf.c $S/kernel/exec_elf.c \
@@ -89,10 +89,10 @@ CFILES = $S/kernel/exec_aout.c $S/kernel/exec_conf.c $S/kernel/exec_elf.c \
 	$S/kernel/vfs_vnops.c $S/kernel/vm_sched.c $S/kernel/vm_swap.c \
 	$S/kernel/vm_swp.c $S/pic32/adc.c $S/pic32/clock.c \
 	$S/pic32/cons.c $S/pic32/devsw.c $S/pic32/exception.c \
-	$S/pic32/glcd.c $S/pic32/gpio.c $S/pic32/machdep.c \
-	$S/pic32/mem.c $S/pic32/pwm.c $S/pic32/rd_sd.c $S/pic32/signal.c \
-	$S/pic32/spi.c $S/pic32/spi_bus.c $S/pic32/swap.c \
-	$S/pic32/sysctl.c $S/pic32/usb_device.c \
+	$S/pic32/gpio.c $S/pic32/machdep.c $S/pic32/mem.c $S/pic32/pwm.c \
+	$S/pic32/rd_sd.c $S/pic32/signal.c $S/pic32/spi.c \
+	$S/pic32/spi_bus.c $S/pic32/swap.c $S/pic32/sysctl.c \
+	$S/pic32/uart.c $S/pic32/usb_device.c \
 	$S/pic32/usb_function_cdc.c $S/pic32/usb_uart.c swapunix.c 
 
 # load lines for config "xxx" will be emitted as:
@@ -316,9 +316,6 @@ devsw.o: $S/pic32/devsw.c
 exception.o: $S/pic32/exception.c
 	${COMPILE_C}
 
-glcd.o: $S/pic32/glcd.c
-	${COMPILE_C}
-
 gpio.o: $S/pic32/gpio.c
 	${COMPILE_C}
 
@@ -349,6 +346,9 @@ swap.o: $S/pic32/swap.c
 sysctl.o: $S/pic32/sysctl.c
 	${COMPILE_C}
 
+uart.o: $S/pic32/uart.c
+	${COMPILE_C}
+
 usb_device.o: $S/pic32/usb_device.c
 	${COMPILE_C}