Add LED, button definition, and more EMC logic for the LPC1788

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5646 42af7a65-404d-4744-a932-0658087f49c3

10 files changed, 899 insertions, 218 deletions

diff --git a/nuttx/arch/Kconfig b/nuttx/arch/Kconfig
index c0f235c5d..c7771e9c8 100644
--- a/nuttx/arch/Kconfig
+++ b/nuttx/arch/Kconfig
@@ -172,6 +172,22 @@ config ARCH_EXTDRAMSIZE
 	---help---
 		Size of the external SDRAM in bytes.
 
+choice
+	prompt "SDRAM Width Selection"
+	default ARCH_CHIP_STM32F103ZET6
+	depends on ARCH_CHIP_STM32
+
+config ARCH_SDRAM_8BIT
+	bool "8-bit"
+
+config ARCH_SDRAM_16BIT
+	bool "16-bit"
+
+config ARCH_SDRAM_32BIT
+	bool "32-bit"
+
+endchoice
+
 config ARCH_EXTDRAMHEAP
 	bool "Add external SDRAM to the heap"
 	default y
diff --git a/nuttx/arch/arm/src/lpc17xx/chip/lpc17_emc.h b/nuttx/arch/arm/src/lpc17xx/chip/lpc17_emc.h
index a1587b4b2..2454003a4 100644
--- a/nuttx/arch/arm/src/lpc17xx/chip/lpc17_emc.h
+++ b/nuttx/arch/arm/src/lpc17xx/chip/lpc17_emc.h
@@ -277,8 +277,9 @@
 #define EMC_DYNAMICCONFIG_MD_MASK           (3 << EMC_DYNAMICCONFIG_MD_SHIFT)
 #  define EMC_DYNAMICCONFIG_MD_SDRAM        (0 << EMC_DYNAMICCONFIG_MD_SHIFT) /* SDRAM */
 #  define EMC_DYNAMICCONFIG_MD_LOWPOWER     (1 << EMC_DYNAMICCONFIG_MD_SHIFT) /* Low-power SDRAM */
-#define EMC_DYNAMICCONFIG_AM0_SHIFT         (nn)      /* Bits 7-12: */
+#define EMC_DYNAMICCONFIG_AM0_SHIFT         (7)       /* Bits 7-12: */
 #define EMC_DYNAMICCONFIG_AM0_MASK          (63 << EMC_DYNAMICCONFIG_AM0_SHIFT)
+#  define EMC_DYNAMICCONFIG_AM0(n)          ((n) << EMC_DYNAMICCONFIG_AM0_SHIFT)
 #define EMC_DYNAMICCONFIG_AM1               (1 << 14) /* Bit 14:  */
 #define EMC_DYNAMICCONFIG_B                 (1 << 19) /* Bit 19:  Buffer enable */
 #define EMC_DYNAMICCONFIG_P                 (1 << 20) /* Bit 20:  Write protect */
@@ -298,41 +299,41 @@
 
 /* Static Memory Configuration registers (0-3) */
 
-#define EMC_STATICCONFIG_MW_SHIFT         (0)       /* Bits 0-1: Memory width */
-#define EMC_STATICCONFIG_MW_MASK          (3 << EMC_STATICCONFIG_MW_SHIFT)
-#  define EMC_STATICCONFIG_MW_8BIT        (0 << EMC_STATICCONFIG_MW_SHIFT)
-#  define EMC_STATICCONFIG_MW_16BIT       (1 << EMC_STATICCONFIG_MW_SHIFT)
-#  define EMC_STATICCONFIG_MW_32BIT       (2 << EMC_STATICCONFIG_MW_SHIFT)
-#define EMC_STATICCONFIG_PM               (1 << 3)  /* Bit 3:  Page mode */
-#define EMC_STATICCONFIG_PC               (1 << 6)  /* Bit 6:  Chip select polarity */
-#define EMC_STATICCONFIG_PB               (1 << 7)  /* Bit 7:  Byte lane state */
-#define EMC_STATICCONFIG_EW               (1 << 8)  /* Bit 8:  Extended wait */
-#define EMC_STATICCONFIG_B                (1 << 19) /* Bit 19: Buffer enable */
-#define EMC_STATICCONFIG_P                (1 << 20) /* Bit 20: Write protect */
+#define EMC_STATICCONFIG_MW_SHIFT           (0)       /* Bits 0-1: Memory width */
+#define EMC_STATICCONFIG_MW_MASK            (3 << EMC_STATICCONFIG_MW_SHIFT)
+#  define EMC_STATICCONFIG_MW_8BIT          (0 << EMC_STATICCONFIG_MW_SHIFT)
+#  define EMC_STATICCONFIG_MW_16BIT         (1 << EMC_STATICCONFIG_MW_SHIFT)
+#  define EMC_STATICCONFIG_MW_32BIT         (2 << EMC_STATICCONFIG_MW_SHIFT)
+#define EMC_STATICCONFIG_PM                 (1 << 3)  /* Bit 3:  Page mode */
+#define EMC_STATICCONFIG_PC                 (1 << 6)  /* Bit 6:  Chip select polarity */
+#define EMC_STATICCONFIG_PB                 (1 << 7)  /* Bit 7:  Byte lane state */
+#define EMC_STATICCONFIG_EW                 (1 << 8)  /* Bit 8:  Extended wait */
+#define EMC_STATICCONFIG_B                  (1 << 19) /* Bit 19: Buffer enable */
+#define EMC_STATICCONFIG_P                  (1 << 20) /* Bit 20: Write protect */
 
 /* Static Memory Write Enable Delay registers (0-3) */
 
-#define EMC_STATICWAITWEN_MASK            (0x0000000f) /* Bits 0-3: Wait write enable */
+#define EMC_STATICWAITWEN_MASK              (0x0000000f) /* Bits 0-3: Wait write enable */
 
 /* Static Memory Output Enable Delay registers (0-3) */
 
-#define EMC_STATICWAITOEN_MASK            (0x0000000f) /* Bits 0-3: Wait output enable */
+#define EMC_STATICWAITOEN_MASK              (0x0000000f) /* Bits 0-3: Wait output enable */
 
 /* Static Memory Read Delay registers (0-3) */
 
-#define EMC_STATICWAITRD_MASK             (0x0000001f) /* Bits 0-4: Exit self-refresh to active command time */
+#define EMC_STATICWAITRD_MASK               (0x0000001f) /* Bits 0-4: Exit self-refresh to active command time */
 
 /* Static Memory Page Mode Read Delay registers (0-3) */
 
-#define EMC_STATICWAITPAGE_MASK           (0x0000001f) /* Bits 0-4: Asynchronous page mode read after the first read wait states */
+#define EMC_STATICWAITPAGE_MASK             (0x0000001f) /* Bits 0-4: Asynchronous page mode read after the first read wait states */
 
 /* Static Memory Write Delay registers (0-3) */
 
-#define EMC_STATICWAITWR_MASK             (0x0000001f) /* Bits 0-4: Write wait states */
+#define EMC_STATICWAITWR_MASK               (0x0000001f) /* Bits 0-4: Write wait states */
 
 /* Static Memory Turn Round Delay registers (0-3) */
 
-#define EMC_STATICWAITTURN_MASK           (0x0000000f) /* Bits 0-3: Bus turn-around cycles */
+#define EMC_STATICWAITTURN_MASK             (0x0000000f) /* Bits 0-3: Bus turn-around cycles */
 
 /****************************************************************************************************
  * Public Types
diff --git a/nuttx/configs/open1788/README.txt b/nuttx/configs/open1788/README.txt
index 154d4b2f7..c207254ca 100644
--- a/nuttx/configs/open1788/README.txt
+++ b/nuttx/configs/open1788/README.txt
@@ -8,9 +8,58 @@ NXP LPC1788 MCU
 CONTENTS
 ========
 
+  o LEDs
+  o Buttons
   o FPU
   o Configuration
 
+LEDs
+====
+
+The Open1788 base board has four user LEDs
+
+  LED1 : Connected to P1[14]
+  LED2 : Connected to P0[16]
+  LED3 : Connected to P1[13]
+  LED4 : Connected to P4[27]
+
+If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in
+any way using the defitions provided in the board.h header file.
+
+If CONFIG_ARCH_LEDs is defined, then NuttX will control the 3 LEDs on the
+WaveShare Open1788K.  The following definitions describe how NuttX controls
+the LEDs:
+                             LED1 LED2 LED3 LED4
+  LED_STARTED                OFF  OFF  OFF  OFF
+  LED_HEAPALLOCATE           ON   OFF  OFF  OFF
+  LED_IRQSENABLED            OFF   ON  OFF  OFF
+  LED_STACKCREATED           ON    ON  OFF  OFF
+  LED_INIRQ                  LED3 glows, on while in interupt
+  LED_SIGNAL                 LED3 glows, on while in signal handler
+  LED_ASSERTION              LED3 glows, on while in assertion
+  LED_PANIC                  LED3 Flashes at 2Hz
+  LED_IDLE                   LED glows, ON while sleeping
+
+Buttons
+=======
+
+The Open1788K supports several buttons:
+
+  USER1           : Connected to P4[26]
+  USER2           : Connected to P2[22]
+  USER3           : Connected to P0[10]
+
+And a Joystick
+
+  JOY_A           : Connected to P2[25]
+  JOY_B           : Connected to P2[26]
+  JOY_C           : Connected to P2[23]
+  JOY_D           : Connected to P2[19]
+  JOY_CTR         : Connected to P0[14]
+
+These can be accessed using the definitions and interfaces defined in the
+board.h header file.
+
 FPU
 ===
 
diff --git a/nuttx/configs/open1788/include/board.h b/nuttx/configs/open1788/include/board.h
index abe544a4a..1be5ac5fb 100644
--- a/nuttx/configs/open1788/include/board.h
+++ b/nuttx/configs/open1788/include/board.h
@@ -133,40 +133,6 @@
 //#define ETH_MCFG_CLKSEL_DIV ETH_MCFG_CLKSEL_DIV44
 #define ETH_MCFG_CLKSEL_DIV ETH_MCFG_CLKSEL_DIV20
 
-/* LED definitions ******************************************************************/
-/* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in
- * any way.  The following definitions are used to access individual LEDs.
- *
- * LED1            -- Connected to P1[25]
- * LED2            -- Connected to P0[4]
- */
-
-/* LED index values for use with lpc17_setled() */
-
-#define BOARD_LED1                0
-#define BOARD_LED2                1
-#define BOARD_NLEDS               2
-
-/* LED bits for use with lpc17_setleds() */
-
-#define BOARD_LED1_BIT            (1 << BOARD_LED1)
-#define BOARD_LED2_BIT            (1 << BOARD_LED2)
-
-/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the 3 LEDs
- * on board the Olimex LPC1766-STK.  The following definitions
- * describe how NuttX controls the LEDs:
- */
-                                      /* LED1 LED2 */
-#define LED_STARTED                0  /*  OFF  OFF = Still initializing */
-#define LED_HEAPALLOCATE           0  /*  OFF  OFF = Still initializing */
-#define LED_IRQSENABLED            0  /*  OFF  OFF = Still initializing */
-#define LED_STACKCREATED           1  /*  ON   OFF = Initialization complete */
-#define LED_INIRQ                  2  /*  N/C  ON  = In an interrupt handler */
-#define LED_SIGNAL                 2  /*  N/C  ON  = In a signal handler (glowing) */
-#define LED_ASSERTION              2  /*  N/C  ON  = In an assertion */
-#define LED_PANIC                  2  /*  N/C  ON  = Oops! We crashed. (flashing) */
-#define LED_IDLE                   3  /*  OFF  N/C = LPC17 in sleep mode (LED1 glowing) */
-
 /* Set EMC delay values:
  *
  * CMDDLY: Programmable delay value for EMC outputs in command delayed
@@ -187,8 +153,8 @@
 
 #if defined(CONFIG_LPC17_EMC_NAND) || defined(CONFIG_LPC17_EMC_SDRAM)
 #  define BOARD_CMDDLY     17
-#  define BOARD_FBCLKDLY   1
-#  define BOARD_CLKOUT0DLY 2
+#  define BOARD_FBCLKDLY   17
+#  define BOARD_CLKOUT0DLY 1
 #  define BOARD_CLKOUT1DLY 1
 #else
 #  define BOARD_CMDDLY     1
@@ -197,187 +163,91 @@
 #  define BOARD_CLKOUT1DLY 1
 #endif
 
-/* Button definitions ***************************************************************/
-/* The LPC1766-STK supports several buttons.  All will read "1" when open and "0"
- * when closed
- *
- * BUT1            -- Connected to P0[23]
- * BUT2            -- Connected to P2[13]
- * WAKE-UP         -- Connected to P2[12]
+/* LED definitions ******************************************************************/
+/* If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in
+ * any way.  The following definitions are used to access individual LEDs.
  *
- * And a Joystick
+ * LED1 -- Connected to P1[14]
+ * LED2 -- Connected to P0[16]
+ * LED3 -- Connected to P1[13]
+ * LED4 -- Connected to P4[27]
  *
- * CENTER          -- Connected to P0[4]
- * DOWN            -- Connected to P2[1]
- * LEFT            -- Connected to P2[7]
- * RIGHT           -- Connected to P2[8]
- * UP              -- Connected to P2[0]
- */
-
-#define BOARD_BUTTON_1             0
-#define BOARD_BUTTON_2             1
-#define BOARD_BUTTON_WAKEUP        2
-
-#define BOARD_JOYSTICK_CENTER      3
-#define BOARD_JOYSTICK_UP          4
-#define BOARD_JOYSTICK_DOWN        5
-#define BOARD_JOYSTICK_LEFT        6
-#define BOARD_JOYSTICK_RIGHT       7
-
-#define BOARD_NUM_BUTTONS          8
-
-#define BOARD_BUTTON_BUTTON1_BIT   (1 << BOARD_BUTTON_1)
-#define BOARD_BUTTON_BUTTON2_BIT   (1 << BOARD_BUTTON_2)
-#define BOARD_BUTTON_WAKEUP_BIT    (1 << BOARD_BUTTON_WAKEUP)
-
-#define BOARD_JOYSTICK_CENTER_BIT  (1 << BOARD_JOYSTICK_CENTER)
-#define BOARD_JOYSTICK_UP_BIT      (1 << BOARD_JOYSTICK_UP)
-#define BOARD_JOYSTICK_DOWN_BIT    (1 << BOARD_JOYSTICK_DOWN)
-#define BOARD_JOYSTICK_LEFT_BIT    (1 << BOARD_JOYSTICK_LEFT)
-#define BOARD_JOYSTICK_RIGHT_BIT   (1 << BOARD_JOYSTICK_RIGHT)
-
-/* Alternate pin selections *********************************************************/
-
-/* CAN1 GPIO                        PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P0[0]/RD1/TXD3/SDA1               46  RD1
- * P0[1]/TD1/RXD3/SCL1               47  TD1
- */
-
-#define GPIO_CAN1_RD  GPIO_CAN1_RD_1
-#define GPIO_CAN1_TD  GPIO_CAN1_TD_1
-
-/* UART0 GPIO                       PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P0[2]/TXD0/AD0[7]                 98  TXD0
- * P0[3]/RXD0/AD0[6]                 99  RXD0
- */
-
-/* UART1 GPIO                       PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P0[15]/TXD1/SCK0/SCK              62  TXD1
- * P0[16]/RXD1/SSEL0/SSEL            63  RXD1
- * P0[17]/CTS1/MISO0/MISO            61  CTS1
- * P0[18]/DCD1/MOSI0/MOSI            60  DCD1
- * P0[19]/DSR1/SDA1                  59  DSR1
- * P0[20]/DTR1/SCL1                  58  DTR1
- * P0[22]/RTS1/TD1                   56  RTS1
+ * These LEDs are connecte to ground so a high output value will illuminate them.
  */
 
-#define GPIO_UART1_TXD GPIO_UART1_TXD_1
-#define GPIO_UART1_RXD GPIO_UART1_RXD_1
-#define GPIO_UART1_CTS GPIO_UART1_CTS_1
-#define GPIO_UART1_DCD GPIO_UART1_DCD_1
-#define GPIO_UART1_DSR GPIO_UART1_DSR_1
-#define GPIO_UART1_DTR GPIO_UART1_DTR_1
-#define GPIO_UART1_RTS GPIO_UART1_RTS_1
-
-/* SSP0 GPIO                        PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P1[21]/MCABORT/PWM1[3]/SSEL0      35  SSEL0
- * P1[20]/MCFB0/PWM1[2]/SCK0         34  SCK0
- * P1[23]/MCFB1/PWM1[4]/MISO0        37  MISO0
- * P1[24]/MCFB2/PWM1[5]/MOSI0        38  MOSI0
- */
+/* LED index values for use with lpc17_setled() */
 
-#define GPIO_SSP0_SSEL GPIO_SSP0_SSEL_2
-#define GPIO_SSP0_SCK  GPIO_SSP0_SCK_2
-#define GPIO_SSP0_MISO GPIO_SSP0_MISO_2
-#define GPIO_SSP0_MOSI GPIO_SSP0_MOSI_2
-
-/* SSP1 GPIO                        PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P0[6]/I2SRX_SDA/SSEL1/MAT2[0]     79  SSEL1
- * P0[7]/I2STX_CLK/SCK1/MAT2[1]      78  SCK1
- * P0[8]/I2STX_WS/MISO1/MAT2[2]      77  MISO1
- * P0[9]/I2STX_SDA/MOSI1/MAT2[3]     76  MOSI1
- */
+#define BOARD_LED1                0
+#define BOARD_LED2                1
+#define BOARD_LED3                2
+#define BOARD_LED4                3
+#define BOARD_NLEDS               4
 
-#define GPIO_SSP1_SCK GPIO_SSP1_SCK_1
+/* LED bits for use with lpc17_setleds() */
 
-/* I2C2 GPIO                        PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P0[10]/TXD2/SDA2/MAT3[0]          48  SDA2
- * P0[11]/RXD2/SCL2/MAT3[1]          49  SCL2
- */
+#define BOARD_LED1_BIT            (1 << BOARD_LED1)
+#define BOARD_LED2_BIT            (1 << BOARD_LED2)
+#define BOARD_LED3_BIT            (1 << BOARD_LED3)
+#define BOARD_LED4_BIT            (1 << BOARD_LED4)
 
-/* AD GPIO                          PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P0[24]/AD0[1]/I2SRX_WS/CAP3[1]     8  TEMP
- * P0[25]/AD0[2]/I2SRX_SDA/TXD3       7  MIC IN
-
-/* USB GPIO                         PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P0[27]/SDA0/USB_SDA               25  USB_SDA
- * P0[28]/SCL0/USB_SCL               24  USB_SCL
- * P0[29]/USB_D+                     29  USB_D+
- * P0[30]/USB_D-                     30  USB_D-
- * P1[18]/USB_UP_LED/PWM1[1]/CAP1[0] 32  USB_UP_LED
- * P1[19]/MC0A/#USB_PPWR/CAP1[1]     33  #USB_PPWR
- * P1[22]/MC0B/USB_PWRD/MAT1[0]      36  USBH_PWRD
- * P1[27]/CLKOUT/#USB_OVRCR/CAP0[1]  43  #USB_OVRCR
- * P1[30]/VBUS/AD0[4]                21  VBUS
- * P2[9]/USB_CONNECT/RXD2            64  USBD_CONNECT
+/* If CONFIG_ARCH_LEDs is defined, then NuttX will control the four LEDs
+ * on the WaveShare Open1788K.  The following definitions describe how NuttX
+ * controls the LEDs:
  */
+                                      /* LED1 LED2 LED3 LED4                        */
+#define LED_STARTED                0  /*  OFF  OFF  OFF  OFF                        */
+#define LED_HEAPALLOCATE           1  /*  ON   OFF  OFF  OFF                        */
+#define LED_IRQSENABLED            2  /*  OFF   ON  OFF  OFF                        */
+#define LED_STACKCREATED           1  /*  ON    ON  OFF  OFF                        */
+#define LED_INIRQ                  2  /*  LED3 glows, on while in interupt          */
+#define LED_SIGNAL                 2  /*  LED3 glows, on while in signal handler    */
+#define LED_ASSERTION              2  /*  LED3 glows, on while in assertion         */
+#define LED_PANIC                  2  /*  LED3 Flashes at 2Hz                       */
+#define LED_IDLE                   3  /*  LED glows, ON while sleeping              */
 
-#ifdef GPIO_USB_PPWR  /* We can only redefine this if they have been defined */
-
-/* The Olimex LPC1766-STK has 10K pull-ups on PPWR and OVRCR and a 100k
- * pull-down on PWRD so we should make sure that the outputs float.
+/* Button definitions ***************************************************************/
+/* The Open1788K supports several buttons.  All will read "1" when open and "0"
+ * when closed
+ *
+ * USER1           -- Connected to P4[26]
+ * USER2           -- Connected to P2[22]
+ * USER3           -- Connected to P0[10]
+ *
+ * And a Joystick
+ *
+ * JOY_A           -- Connected to P2[25]
+ * JOY_B           -- Connected to P2[26]
+ * JOY_C           -- Connected to P2[23]
+ * JOY_D           -- Connected to P2[19]
+ * JOY_CTR         -- Connected to P0[14]
+ *
+ * The switches are all connected to ground and should be pulled up and sensed
+ * with a value of '0' when closed.
  */
 
-#  undef  GPIO_USB_PPWR
-#  define GPIO_USB_PPWR    (GPIO_ALT2 | GPIO_FLOAT | GPIO_PORT1 | GPIO_PIN19)
-#  undef  GPIO_USB_OVRCR
-#  define GPIO_USB_OVRCR   (GPIO_ALT2 | GPIO_FLOAT | GPIO_PORT1 | GPIO_PIN27)
-#  undef  GPIO_USB_PWRD
-#  define GPIO_USB_PWRD    (GPIO_ALT2 | GPIO_FLOAT | GPIO_PORT1 | GPIO_PIN22)
-
-/* In host mode (only) there are also 15K pull-downs on D+ and D- */
-
-#  ifdef CONFIG_USBHOST
-#    undef  GPIO_USB_DP
-#    define GPIO_USB_DP    (GPIO_ALT1 | GPIO_FLOAT | GPIO_PORT0 | GPIO_PIN29)
-#    undef  GPIO_USB_DM
-#    define GPIO_USB_DM    (GPIO_ALT1 | GPIO_FLOAT | GPIO_PORT0 | GPIO_PIN30)
-#  endif
-#endif
+#define BOARD_BUTTON_USER1         0
+#define BOARD_BUTTON_USER2         1
+#define BOARD_BUTTON_USER3         2
 
-/* Ethernet GPIO                    PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P1[0]/ENET_TXD0                   95  E_TXD0
- * P1[1]/ENET_TXD1                   94  E_TXD1
- * P1[4]/ENET_TX_EN                  93  E_TX_EN
- * P1[8]/ENET_CRS                    92  E_CRS
- * P1[9]/ENET_RXD0                   91  E_RXD0
- * P1[10]/ENET_RXD1                  90  E_RXD1
- * P1[14]/ENET_RX_ER                 89  E_RX_ER
- * P1[15]/ENET_REF_CLK               88  E_REF_CLK
- * P1[16]/ENET_MDC                   87  E_MDC
- * P1[17]/ENET_MDIO                  86  E_MDIO
- */
+#define BOARD_JOYSTICK_A           3
+#define BOARD_JOYSTICK_B           4
+#define BOARD_JOYSTICK_C           5
+#define BOARD_JOYSTICK_D           6
+#define BOARD_JOYSTICK_CTR         7
 
-#define GPIO_ENET_MDC  GPIO_ENET_MDC_1
-#define GPIO_ENET_MDIO GPIO_ENET_MDIO_1
+#define BOARD_NUM_BUTTONS          8
 
-/* Trace GPIO                       PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P2[2]/PWM1[3]/CTS1/TRACEDATA[3]   73  TRACE_D3
- * P2[3]/PWM1[4]/DCD1/TRACEDATA[2]   70  TRACE_D2
- * P2[4]/PWM1[5]/DSR1/TRACEDATA[1]   69  TRACE_D1
- * P2[5]/PWM1[6]/DTR1/TRACEDATA[0]   68  TRACE_D0
- * P2[6]/PCAP1[0]/RI1/TRACECLK       67  TRACE_CLK
- */
+#define BOARD_BUTTON_USER1_BIT     (1 << BOARD_BUTTON_USER1)
+#define BOARD_BUTTON_USER2_BIT     (1 << BOARD_BUTTON_USER2)
+#define BOARD_BUTTON_USER3_BIT     (1 << BOARD_BUTTON_USER3)
 
-/* EINT GPIO                       PIN  SIGNAL NAME
- * -------------------------------- ---- --------------
- * P2[11]/#EINT1/I2STX_CLK           52  #EINT1
- */
+#define BOARD_JOYSTICK_A_BIT       (1 << BOARD_JOYSTICK_A)
+#define BOARD_JOYSTICK_B_BIT       (1 << BOARD_JOYSTICK_B)
+#define BOARD_JOYSTICK_C_BIT       (1 << BOARD_JOYSTICK_C)
+#define BOARD_JOYSTICK_D_BIT       (1 << BOARD_JOYSTICK_D)
+#define BOARD_JOYSTICK_CTR_BIT     (1 << BOARD_JOYSTICK_CTR)
 
-/* ?
- *  P0[26]/AD0[3]/AOUT/RXD3            6  AOUT
- *  P1[31]/SCK1/AD0[5]                20  AIN5
- */
+/* Alternate pin selections *********************************************************/
 
 /************************************************************************************
  * Public Types
diff --git a/nuttx/configs/open1788/src/Makefile b/nuttx/configs/open1788/src/Makefile
new file mode 100644
index 000000000..ee4a244f3
--- /dev/null
+++ b/nuttx/configs/open1788/src/Makefile
@@ -0,0 +1,87 @@
+############################################################################
+# configs/open1788/src/Makefile
+#
+#   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+-include $(TOPDIR)/Make.defs
+
+CFLAGS		+= -I$(TOPDIR)/sched
+
+ASRCS		= 
+CSRCS		= lpc17_boardinitialize.c
+
+ifeq ($(CONFIG_LPC17_EMC_NOR),y)
+CSRCS		+= lpc17_norinitialize.c
+endif
+
+AOBJS		= $(ASRCS:.S=$(OBJEXT))
+COBJS		= $(CSRCS:.c=$(OBJEXT))
+
+SRCS		= $(ASRCS) $(CSRCS)
+OBJS		= $(AOBJS) $(COBJS)
+
+ARCH_SRCDIR	= $(TOPDIR)/arch/$(CONFIG_ARCH)/src
+ifeq ($(WINTOOL),y)
+  CFLAGS	+= -I "${shell cygpath -w $(ARCH_SRCDIR)/chip}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/common}" \
+  		   -I "${shell cygpath -w $(ARCH_SRCDIR)/armv7-m}"
+else
+  CFLAGS	+= -I$(ARCH_SRCDIR)/chip -I$(ARCH_SRCDIR)/common -I$(ARCH_SRCDIR)/armv7-m
+endif
+
+all: libboard$(LIBEXT)
+
+$(AOBJS): %$(OBJEXT): %.S
+	$(call ASSEMBLE, $<, $@)
+
+$(COBJS) $(LINKOBJS): %$(OBJEXT): %.c
+	$(call COMPILE, $<, $@)
+
+libboard$(LIBEXT): $(OBJS)
+	$(call ARCHIVE, $@, $(OBJS))
+
+.depend: Makefile $(SRCS)
+	$(Q) $(MKDEP) $(CC) -- $(CFLAGS) -- $(SRCS) >Make.dep
+	$(Q) touch $@
+
+depend: .depend
+
+clean:
+	$(call DELFILE, libboard$(LIBEXT))
+	$(call CLEAN)
+
+distclean: clean
+	$(call DELFILE, Make.dep)
+	$(call DELFILE, .depend)
+
+-include Make.dep
diff --git a/nuttx/configs/open1788/src/lpc17_boardinitialize.c b/nuttx/configs/open1788/src/lpc17_boardinitialize.c
new file mode 100644
index 000000000..417c9ae85
--- /dev/null
+++ b/nuttx/configs/open1788/src/lpc17_boardinitialize.c
@@ -0,0 +1,109 @@
+/************************************************************************************
+ * configs/open1788/src/lpc17_boardinitialize.c
+ * arch/arm/src/board/lpc17_boardinitialize.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+
+#include "lpc17_emc.h"
+
+#include "open1788.h"
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: lpc17_boardinitialize
+ *
+ * Description:
+ *   All LPC17xx architectures must provide the following entry point.  This entry point
+ *   is called early in the intitialization -- after all memory has been configured
+ *   and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+void lpc17_boardinitialize(void)
+{
+  /* Initialize the EMC, SDRAM, NOR FLASH, and NAND FLASH */
+
+#ifdef CONFIG_LPC17_EMC
+  lpc17_emcinitialize();
+#ifdef CONFIG_LPC17_EMC_SDRAM
+  lpc17_sdram_initialize();
+#endif
+#ifdef CONFIG_LPC17_EMC_NOR
+  lpc17_nor_initialize();
+#endif
+#ifdef CONFIG_LPC17_EMC_NAND
+  lpc17_nand_initialize();
+#endif
+#endif
+
+  /* Configure SSP chip selects if 1) at least one SSP is enabled, and 2) the weak
+   * function lpc17_sspinitialize() has been brought into the link.
+   */
+
+#if defined(CONFIG_LPC17_SSP0) || defined(CONFIG_LPC17_SSP1)
+  if (lpc17_sspinitialize)
+    {
+      lpc17_sspinitialize();
+    }
+#endif
+
+  /* Configure on-board LEDs if LED support has been selected. */
+
+#ifdef CONFIG_ARCH_LEDS
+  up_ledinit();
+#endif
+}
diff --git a/nuttx/configs/open1788/src/lpc17_nandinitialize.c b/nuttx/configs/open1788/src/lpc17_nandinitialize.c
new file mode 100644
index 000000000..1c72b754c
--- /dev/null
+++ b/nuttx/configs/open1788/src/lpc17_nandinitialize.c
@@ -0,0 +1,101 @@
+/************************************************************************************
+ * configs/open1788/src/lpc17_nandinitialize.c
+ * arch/arm/src/board/lpc17_nandinitialize.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+
+#include "open1788.h"
+
+#if defined(CONFIG_LPC17_EMC) && defined(CONFIG_LPC17_EMC_NAND)
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: lpc17_nand_initialize
+ *
+ * Description:
+ *   Initialize NAND FLASH
+ *
+ ************************************************************************************/
+
+void lpc17_nand_initialize(void)
+{
+  uint32_t regval;
+
+  /* Set the memory width and byte lanes */
+
+  regval = getreg32(LPC17_EMC_STATICCONFIG1);
+  regval &= ~EMC_STATICCONFIG_MW_MASK;
+  regbal |= (EMC_STATICCONFIG_MW_8BIT | EMC_STATICCONFIG_PB);
+  putreg32(regval, LPC17_EMC_STATICCONFIG1);
+
+  /* Configure timing */
+
+  putreg32(2, LPC17_EMC_STATICWAITWEN1);
+  putreg32(2, LPC17_EMC_STATICWAITOEN1);
+  putreg32(31, LPC17_EMC_STATICWAITRD1);
+  putreg32(31, LPC17_EMC_STATICWAITPAGE1);
+  putreg32(31, LPC17_EMC_STATICWAITWR1);
+  putreg32(31, LPC17_EMC_STATICWAITTURN1);
+  
+  /* GPIO P2[21] connects to the Ready/Busy pin of the NAND part.  We need to 
+   * reconfigure this pin as normal GPIO input.
+   */
+
+  lpc17_gpioconfig(GPIO_NAND_RB);
+}
+
+#endif /* CONFIG_LPC17_EMC && CONFIG_LPC17_EMC_NAND */
diff --git a/nuttx/configs/open1788/src/lpc17_norinitialize.c b/nuttx/configs/open1788/src/lpc17_norinitialize.c
new file mode 100644
index 000000000..76838b3f0
--- /dev/null
+++ b/nuttx/configs/open1788/src/lpc17_norinitialize.c
@@ -0,0 +1,97 @@
+/************************************************************************************
+ * configs/open1788/src/lpc17_norinitialize.c
+ * arch/arm/src/board/lpc17_norinitialize.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+
+#include "open1788.h"
+
+#if defined(CONFIG_LPC17_EMC) && defined(CONFIG_LPC17_EMC_NOR)
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: lpc17_nor_initialize
+ *
+ * Description:
+ *   Initialize NOR FLASH
+ *
+ ************************************************************************************/
+
+void lpc17_nor_initialize(void)
+{
+  uint32_t regval;
+
+  /* Set the memory width and byte lanes */
+
+  regval = getreg32(LPC17_EMC_STATICCONFIG0);
+  regval &= ~EMC_STATICCONFIG_MW_MASK;
+  regbal |= (EMC_STATICCONFIG_MW_16BIT | EMC_STATICCONFIG_PB);
+  putreg32(regval, LPC17_EMC_STATICCONFIG0);
+
+  /* Configure timing */
+
+  putreg32(2, LPC17_EMC_STATICWAITWEN0);
+  putreg32(2, LPC17_EMC_STATICWAITOEN0);
+  putreg32(31, LPC17_EMC_STATICWAITRD0);
+  putreg32(31, LPC17_EMC_STATICWAITPAGE0);
+  putreg32(31, LPC17_EMC_STATICWAITWR0);
+  putreg32(31, LPC17_EMC_STATICWAITTURN0);
+
+  up_mdelay(10);
+}
+
+#endif /* CONFIG_LPC17_EMC && CONFIG_LPC17_EMC_NOR */
diff --git a/nuttx/configs/open1788/src/lpc17_sdraminitialize.c b/nuttx/configs/open1788/src/lpc17_sdraminitialize.c
new file mode 100644
index 000000000..07059f49a
--- /dev/null
+++ b/nuttx/configs/open1788/src/lpc17_sdraminitialize.c
@@ -0,0 +1,229 @@
+/************************************************************************************
+ * configs/open1788/src/lpc17_sdraminitialize.c
+ * arch/arm/src/board/lpc17_sdraminitialize.c
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <debug.h>
+
+#include <arch/board/board.h>
+
+#include "up_arch.h"
+#include "up_internal.h"
+
+#include "open1788.h"
+
+#if defined(CONFIG_LPC17_EMC) && defined(CONFIG_LPC17_EMC_SDRAM)
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+#define EMC_NS2CLK(ns, npc) ((ns + npc - 1) / npc)
+#define MDKCFG_RASCAS0VAL   0x00000303
+
+#define CONFIG_ARCH_SDRAM_32BIT
+
+#ifdef CONFIG_ARCH_SDRAM_16BIT 
+#  define SDRAM_SIZE        0x02000000 /* 256Mbit */
+#else /* if defined(CONFIG_ARCH_SDRAM_32BIT) */
+#  undef CONFIG_ARCH_SDRAM_32BIT
+#  define CONFIG_ARCH_SDRAM_32BIT 1
+#  define SDRAM_SIZE        0x04000000 /* 512Mbit */
+#endif
+
+#define SDRAM_BASE          0xa0000000 /* CS0 */
+
+/************************************************************************************
+ * Private Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: lpc17_sdram_initialize
+ *
+ * Description:
+ *   Initialize SDRAM
+ *
+ ************************************************************************************/
+
+void lpc17_sdram_initialize(void)
+{
+  uint32_t mhz;
+  uint32_t ns_per_clk;
+  uint32_t regval;
+#ifdef CONFIG_ARCH_SDRAM_16BIT
+  volatile uint16_t dummy;
+#else
+  volatile uint32_t dummy;
+#endif
+  int i;
+
+  /* Reconfigure delays:
+   *
+   * CMDDLY: Programmable delay value for EMC outputs in command delayed
+   *   mode.  The delay amount is roughly CMDDLY * 250 picoseconds.
+   * FBCLKDLY: Programmable delay value for the feedback clock that controls
+   *   input data sampling.  The delay amount is roughly (FBCLKDLY+1) * 250
+   *   picoseconds.
+   * CLKOUT0DLY: Programmable delay value for the CLKOUT0 output. This would
+   *   typically be used in clock delayed mode.  The delay amount is roughly
+   *  (CLKOUT0DLY+1) * 250 picoseconds.
+   * CLKOUT1DLY: Programmable delay value for the CLKOUT1 output. This would
+   *  typically be used in clock delayed mode.  The delay amount is roughly
+   *  (CLKOUT1DLY+1) * 250 picoseconds.
+   */
+
+  regval = SYSCON_EMCDLYCTL_CMDDLY(32) |
+           SYSCON_EMCDLYCTL_FBCLKDLY(32) |
+           SYSCON_EMCDLYCTL_CLKOUT0DLY(1) |
+           SYSCON_EMCDLYCTL_CLKOUT1DLY(1);
+  putreg32(regval, LPC17_SYSCON_EMCDLYCTL);
+
+  /* The core clock is PLL0CLK:
+   *
+   * PLL0CLK = (2 * PLL0_M * SYSCLK) / PLL0_D
+   */
+
+  mhz = PLL0CLK / 1000000;
+#if BOARD_CLKSRCSEL_VALUE == SYSCON_CLKSRCSEL_MAIN
+  mhz >>= 1;
+#endif
+  ns_per_clk = 1000 / mhz;
+
+  /* Configure the SDRAM */
+
+  putreg32(    EMC_NS2CLK(20, ns_per_clk), LPC17_EMC_DYNAMICRP);   /* TRP   = 20 nS */
+  putreg32(                            15, LPC17_EMC_DYNAMICRAS);  /* RAS   = 42ns to 100K ns,  */
+  putreg32(                             0, LPC17_EMC_DYNAMICSREX); /* TSREX = 1 clock */
+  putreg32(                             1, LPC17_EMC_DYNAMICAPR);  /* TAPR  = 2 clocks? */
+  putreg32(EMC_NS2CLK(20, ns_per_clk) + 2, LPC17_EMC_DYNAMICDAL);  /* TDAL  = TRP + TDPL = 20ns + 2clk  */
+  putreg32(                             1, LPC17_EMC_DYNAMICWR);   /* TWR   = 2 clocks */
+  putreg32(     EMC_NS2CLK(63, ns_per_clk), LPC17_EMC_DYNAMICRC);  /* H57V2562GTR-75C TRC = 63ns(min)*/
+  putreg32(     EMC_NS2CLK(63, ns_per_clk, LPC17_EMC_DYNAMICRFC);  /* H57V2562GTR-75C TRFC = TRC */
+  putreg32(                            15, LPC17_EMC_DYNAMICXSR);  /* Exit self-refresh to active */
+  putreg32(    EMC_NS2CLK(63, ns_per_clk), LPC17_EMC_DYNAMICRRD);  /* 3 clock, TRRD = 15ns (min) */
+  putreg32(                             1, LPC17_EMC_DYNAMICMRD);  /* 2 clock, TMRD = 2 clocks (min) */
+
+  /* Command delayed strategy, using EMCCLKDELAY */
+
+  putreg32(EMC_DYNAMICREADCONFIG_RD_CMD, LPC17_EMC_DYNAMICREADCONFIG);
+
+  /* H57V2562GTR-75C: TCL=3CLK, TRCD = 20ns(min), 3 CLK = 24ns */
+
+  putreg32(MDKCFG_RASCAS0VAL, LPC17_EMC_DYNAMICRASCAS0);
+
+  #ifdef CONFIG_ARCH_SDRAM_16BIT
+    /* For Manley lpc1778 SDRAM: H57V2562GTR-75C, 256Mb, 16Mx16, 4 banks, row=13, column=9:
+     *
+     * 256Mb, 16Mx16, 4 banks, row=13, column=9, RBC
+     */
+
+  putreg32(EMC_DYNAMICCONFIG_MD_SDRAM |  EMC_DYNAMICCONFIG_AM0(13),
+           LPC17_EMC_DYNAMICCONFIG0);
+
+#elif defined CONFIG_ARCH_SDRAM_32BIT
+    /* 256Mb, 16Mx16, 4 banks, row=13, column=9, RBC */
+
+  putreg32(EMC_DYNAMICCONFIG_MD_SDRAM |  EMC_DYNAMICCONFIG_AM0(13) | EMC_DYNAMICCONFIG_AM1,
+           LPC17_EMC_DYNAMICCONFIG0);
+#endif
+
+  up_mdelay(100);
+
+  /* Issue NOP command */
+
+  putreg32(EMC_DYNAMICCONTROL_CE | EMC_DYNAMICCONTROL_CS | EMC_DYNAMICCONTROL_I_NOP,
+           LPC17_EMC_DYNAMICCONTROL);
+
+  /* Wait 200 Msec */
+
+  up_mdelay(200);
+
+  /* Issue PALL command */
+
+  putreg32(EMC_DYNAMICCONTROL_CE | EMC_DYNAMICCONTROL_CS | EMC_DYNAMICCONTROL_I_PALL,
+           LPC17_EMC_DYNAMICCONTROL);
+
+  putreg32(2, LPC17_EMC_DYNAMICREFRESH); /* ( n * 16 ) -> 32 clock cycles */
+
+  /* Wait 128 AHB clock cycles */
+
+  for(i = 0; i < 128; i++);
+ 
+  /* 64ms/8192 = 7.8125us, nx16x8.33ns < 7.8125us, n < 58.6*/
+
+  regval = 64000000 / (1 << 13);
+  regval -= 16;
+  regval >>= 4;
+  regval = regval * mhz / 1000;
+  putreg32(regval, LPC17_EMC_DYNAMICREFRESH);
+
+  /* Issue MODE command */
+
+  putreg32(EMC_DYNAMICCONTROL_CE | EMC_DYNAMICCONTROL_CS | EMC_DYNAMICCONTROL_I_MODE,
+           LPC17_EMC_DYNAMICCONTROL);
+
+#ifdef CONFIG_ARCH_SDRAM_16BIT
+  dummy = getreg16(SDRAM_BASE | (0x33 << 12));  /* 8 burst, 3 CAS latency */
+#elif defined CONFIG_ARCH_SDRAM_32BIT
+  dummy = getreg32(SDRAM_BASE | (0x32 << 13))); /* 4 burst, 3 CAS latency */
+#endif
+
+  /* Issue NORMAL command */
+
+  putreg32(EMC_DYNAMICCONTROL_I_NORMAL, LPC17_EMC_DYNAMICCONTROL);
+
+  /* Enable buffer */
+
+  regval = getreg32(LPC17_EMC_DYNAMICCONFIG0);
+  regval |= EMC_DYNAMICCONFIG_B;
+  putreg32(regval, LPC17_EMC_DYNAMICCONFIG0);
+  up_mdelay(12);
+
+  regval = getreg32(LPC17_SYSCON_EMCDLYCTL);
+  regval &= ~SYSCON_EMCDLYCTL_CMDDLY_MASK;
+  regval |= SYSCON_EMCDLYCTL_CMDDLY(18);
+  putreg32(regval, LPC17_SYSCON_EMCDLYCTL);
+}
+
+#endif /* CONFIG_LPC17_EMC && CONFIG_LPC17_EMC_SDRAM */
diff --git a/nuttx/configs/open1788/src/open1788.h b/nuttx/configs/open1788/src/open1788.h
new file mode 100644
index 000000000..7eb4f7e9c
--- /dev/null
+++ b/nuttx/configs/open1788/src/open1788.h
@@ -0,0 +1,122 @@
+/************************************************************************************
+ * configs/olimex-lpc1766stk/src/lpc1766stk_internal.h
+ * arch/arm/src/board/lpc1766stk_internal.n
+ *
+ *   Copyright (C) 2013 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ************************************************************************************/
+
+#ifndef _CONFIGS_OLIMEX_LPC1766STK_SRC_LPC1766STK_INTERNAL_H
+#define _CONFIGS_OLIMEX_LPC1766STK_SRC_LPC1766STK_INTERNAL_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+#include <nuttx/compiler.h>
+
+/************************************************************************************
+ * Definitions
+ ************************************************************************************/
+
+/* LPC1766-STK GPIO Pin Definitions *************************************************/
+/* GPIO P2[21] connects to the Ready/Busy pin of the NAND part.  We need to
+ * reconfigure this pin as normal GPIO input if NAND is used.
+ */
+
+#define GPIO_NAND_RB (GPIO_INPUT | GPIO_PULLUP | GPIO_PORT2 | GPIO_PIN21)
+
+/************************************************************************************
+ * Public Types
+ ************************************************************************************/
+
+/************************************************************************************
+ * Public data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: lpc17_sspinitialize
+ *
+ * Description:
+ *   Called to configure SPI chip select GPIO pins for the Olimex LPC1766-STK board.
+ *
+ ************************************************************************************/
+
+void weak_function lpc17_sspinitialize(void);
+
+/************************************************************************************
+ * Name: lpc17_sdram_initialize
+ *
+ * Description:
+ *   Initialize SDRAM
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_LPC17_EMC
+#ifdef CONFIG_LPC17_EMC_SDRAM
+void lpc17_sdram_initialize(void);
+#endif
+
+/************************************************************************************
+ * Name: lpc17_nor_initialize
+ *
+ * Description:
+ *   Initialize NOR FLASH
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_LPC17_EMC_NOR
+void lpc17_nor_initialize(void);
+#endif
+
+/************************************************************************************
+ * Name: lpc17_nand_initialize
+ *
+ * Description:
+ *   Initialize NAND FLASH
+ *
+ ************************************************************************************/
+
+#ifdef CONFIG_LPC17_EMC_NAND
+void lpc17_nand_initialize(void);
+#endif
+#endif /* CONFIG_LPC17_EMC */
+
+#endif /* __ASSEMBLY__ */
+#endif /* _CONFIGS_OLIMEX_LPC1766STK_SRC_LPC1766STK_INTERNAL_H */
+