bsp/lpc24xx: Move source files to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

9 files changed, 1954 insertions, 0 deletions

diff --git a/bsps/arm/lpc24xx/fb/lcd.c b/bsps/arm/lpc24xx/fb/lcd.c
new file mode 100644
index 0000000000..9474eec18a
--- /dev/null
+++ b/bsps/arm/lpc24xx/fb/lcd.c
@@ -0,0 +1,122 @@
+/**
+ * @file
+ *
+ * @ingroup lpc24xx_lcd
+ *
+ * @brief LCD support.
+ */
+
+/*
+ * Copyright (c) 2010-2012 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <assert.h>
+
+#include <bsp/lpc24xx.h>
+#include <bsp/lcd.h>
+#include <bsp/lpc-lcd.h>
+#include <bsp/utility.h>
+#include <bsp/system-clocks.h>
+
+#ifdef ARM_MULTILIB_ARCH_V4
+  #define LCD_ENABLE BSP_BIT32(0)
+#endif
+
+rtems_status_code lpc24xx_lcd_set_mode(
+  lpc24xx_lcd_mode mode,
+  const lpc24xx_pin_range *pins
+)
+{
+  rtems_status_code sc = RTEMS_SUCCESSFUL;
+  bool enable = false;
+
+  switch (mode) {
+    case LCD_MODE_STN_4_BIT:
+    case LCD_MODE_STN_8_BIT:
+    case LCD_MODE_STN_DUAL_PANEL_4_BIT:
+    case LCD_MODE_STN_DUAL_PANEL_8_BIT:
+    case LCD_MODE_TFT_12_BIT_4_4_4:
+    case LCD_MODE_TFT_16_BIT_5_6_5:
+    case LCD_MODE_TFT_16_BIT_1_5_5_5:
+    case LCD_MODE_TFT_24_BIT:
+      enable = true;
+      break;
+    case LCD_MODE_DISABLED:
+      enable = false;
+      break;
+    default:
+      sc = RTEMS_IO_ERROR;
+      break;
+  }
+
+  if (sc == RTEMS_SUCCESSFUL) {
+    if (enable) {
+      sc = lpc24xx_module_enable(LPC24XX_MODULE_LCD, LPC24XX_MODULE_PCLK_DEFAULT);
+      assert(sc == RTEMS_SUCCESSFUL);
+
+      #ifdef ARM_MULTILIB_ARCH_V4
+        PINSEL11 = BSP_FLD32(mode, 1, 3) | LCD_ENABLE;
+      #endif
+
+      sc = lpc24xx_pin_config(pins, LPC24XX_PIN_SET_FUNCTION);
+      assert(sc == RTEMS_SUCCESSFUL);
+    } else {
+      if (lpc24xx_lcd_current_mode() != LCD_MODE_DISABLED) {
+        uint32_t lcd_ctrl = LCD_CTRL;
+
+        /* Disable power */
+        lcd_ctrl &= ~BSP_BIT32(11);
+        LCD_CTRL = lcd_ctrl;
+
+        lpc24xx_micro_seconds_delay(100000);
+
+        /* Disable all signals */
+        lcd_ctrl &= ~BSP_BIT32(0);
+        LCD_CTRL = lcd_ctrl;
+      }
+
+      sc = lpc24xx_pin_config(pins, LPC24XX_PIN_SET_INPUT);
+      assert(sc == RTEMS_SUCCESSFUL);
+
+      #ifdef ARM_MULTILIB_ARCH_V4
+        PINSEL11 = 0;
+      #endif
+
+      sc = lpc24xx_module_disable(LPC24XX_MODULE_LCD);
+      assert(sc == RTEMS_SUCCESSFUL);
+    }
+  }
+
+  return sc;
+}
+
+lpc24xx_lcd_mode lpc24xx_lcd_current_mode(void)
+{
+  #ifdef ARM_MULTILIB_ARCH_V4
+    uint32_t pinsel11 = PINSEL11;
+
+    if ((PCONP & BSP_BIT32(20)) != 0 && (pinsel11 & LCD_ENABLE) != 0) {
+      return BSP_FLD32GET(pinsel11, 1, 3);
+    } else {
+      return LCD_MODE_DISABLED;
+    }
+  #else
+    volatile lpc17xx_scb *scb = &LPC17XX_SCB;
+
+    if ((scb->pconp & LPC17XX_SCB_PCONP_LCD) != 0) {
+      return LCD_CTRL & 0xae;
+    } else {
+      return LCD_MODE_DISABLED;
+    }
+  #endif
+}
diff --git a/bsps/arm/lpc24xx/spi/ssp.c b/bsps/arm/lpc24xx/spi/ssp.c
new file mode 100644
index 0000000000..6563d047b2
--- /dev/null
+++ b/bsps/arm/lpc24xx/spi/ssp.c
@@ -0,0 +1,652 @@
+/**
+ * @file
+ *
+ * @ingroup lpc24xx_libi2c
+ *
+ * @brief LibI2C bus driver for the Synchronous Serial Port (SSP).
+ */
+
+/*
+ * Copyright (c) 2008
+ * Embedded Brains GmbH
+ * Obere Lagerstr. 30
+ * D-82178 Puchheim
+ * Germany
+ * rtems@embedded-brains.de
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <stdbool.h>
+
+#include <bsp/ssp.h>
+#include <bsp/lpc24xx.h>
+#include <bsp/irq.h>
+#include <bsp/system-clocks.h>
+#include <bsp/dma.h>
+#include <bsp/io.h>
+
+#define RTEMS_STATUS_CHECKS_USE_PRINTK
+
+#include <rtems/status-checks.h>
+
+#define LPC24XX_SSP_NUMBER 2
+
+#define LPC24XX_SSP_FIFO_SIZE 8
+
+#define LPC24XX_SSP_BAUD_RATE 2000000
+
+typedef enum {
+  LPC24XX_SSP_DMA_INVALID = 0,
+  LPC24XX_SSP_DMA_AVAILABLE = 1,
+  LPC24XX_SSP_DMA_NOT_INITIALIZED = 2,
+  LPC24XX_SSP_DMA_INITIALIZATION = 3,
+  LPC24XX_SSP_DMA_TRANSFER_FLAG = 0x80000000U,
+  LPC24XX_SSP_DMA_WAIT = 1 | LPC24XX_SSP_DMA_TRANSFER_FLAG,
+  LPC24XX_SSP_DMA_WAIT_FOR_CHANNEL_0 = 2 | LPC24XX_SSP_DMA_TRANSFER_FLAG,
+  LPC24XX_SSP_DMA_WAIT_FOR_CHANNEL_1 = 3 | LPC24XX_SSP_DMA_TRANSFER_FLAG,
+  LPC24XX_SSP_DMA_ERROR = 4 | LPC24XX_SSP_DMA_TRANSFER_FLAG,
+  LPC24XX_SSP_DMA_DONE = 5 | LPC24XX_SSP_DMA_TRANSFER_FLAG
+} lpc24xx_ssp_dma_status;
+
+typedef struct {
+  rtems_libi2c_bus_t bus;
+  volatile lpc24xx_ssp *regs;
+  unsigned clock;
+  uint32_t idle_char;
+} lpc24xx_ssp_bus_entry;
+
+typedef struct {
+  lpc24xx_ssp_dma_status status;
+  lpc24xx_ssp_bus_entry *bus;
+  rtems_libi2c_read_write_done_t done;
+  int n;
+  void *arg;
+} lpc24xx_ssp_dma_entry;
+
+static lpc24xx_ssp_dma_entry lpc24xx_ssp_dma_data = {
+  .status = LPC24XX_SSP_DMA_NOT_INITIALIZED,
+  .bus = NULL,
+  .done = NULL,
+  .n = 0,
+  .arg = NULL
+};
+
+static uint32_t lpc24xx_ssp_trash = 0;
+
+static inline bool lpc24xx_ssp_is_busy(const lpc24xx_ssp_bus_entry *bus)
+{
+  return lpc24xx_ssp_dma_data.bus == bus
+    && lpc24xx_ssp_dma_data.status != LPC24XX_SSP_DMA_AVAILABLE;
+}
+
+static void lpc24xx_ssp_handler(void *arg)
+{
+  lpc24xx_ssp_bus_entry *e = (lpc24xx_ssp_bus_entry *) arg;
+  volatile lpc24xx_ssp *regs = e->regs;
+  uint32_t mis = regs->mis;
+  uint32_t icr = 0;
+
+  if ((mis & SSP_MIS_RORRIS) != 0) {
+    /* TODO */
+    icr |= SSP_ICR_RORRIS;
+  }
+
+  regs->icr = icr;
+}
+
+static void lpc24xx_ssp_dma_handler(void *arg)
+{
+  lpc24xx_ssp_dma_entry *e = (lpc24xx_ssp_dma_entry *) arg;
+  lpc24xx_ssp_dma_status status = e->status;
+  uint32_t tc = 0;
+  uint32_t err = 0;
+  int rv = 0;
+
+  /* Return if we are not in a transfer status */
+  if ((status & LPC24XX_SSP_DMA_TRANSFER_FLAG) == 0) {
+    return;
+  }
+
+  /* Get interrupt status */
+  tc = GPDMA_INT_TCSTAT;
+  err = GPDMA_INT_ERR_STAT;
+
+  /* Clear interrupt status */
+  GPDMA_INT_TCCLR = tc;
+  GPDMA_INT_ERR_CLR = err;
+
+  /* Change status */
+  if (err == 0) {
+    switch (status) {
+      case LPC24XX_SSP_DMA_WAIT:
+        if ((tc & (GPDMA_STATUS_CH_0 | GPDMA_STATUS_CH_1)) != 0) {
+          status = LPC24XX_SSP_DMA_DONE;
+        } else if ((tc & GPDMA_STATUS_CH_0) != 0) {
+          status = LPC24XX_SSP_DMA_WAIT_FOR_CHANNEL_1;
+        } else if ((tc & GPDMA_STATUS_CH_1) != 0) {
+          status = LPC24XX_SSP_DMA_WAIT_FOR_CHANNEL_0;
+        }
+        break;
+      case LPC24XX_SSP_DMA_WAIT_FOR_CHANNEL_0:
+        if ((tc & GPDMA_STATUS_CH_1) != 0) {
+          status = LPC24XX_SSP_DMA_ERROR;
+        } else if ((tc & GPDMA_STATUS_CH_0) != 0) {
+          status = LPC24XX_SSP_DMA_DONE;
+        }
+        break;
+      case LPC24XX_SSP_DMA_WAIT_FOR_CHANNEL_1:
+        if ((tc & GPDMA_STATUS_CH_0) != 0) {
+          status = LPC24XX_SSP_DMA_ERROR;
+        } else if ((tc & GPDMA_STATUS_CH_1) != 0) {
+          status = LPC24XX_SSP_DMA_DONE;
+        }
+        break;
+      default:
+        status = LPC24XX_SSP_DMA_ERROR;
+        break;
+    }
+  } else {
+    status = LPC24XX_SSP_DMA_ERROR;
+  }
+
+  /* Error cleanup */
+  if (status == LPC24XX_SSP_DMA_ERROR) {
+    lpc24xx_dma_channel_disable(0, true);
+    lpc24xx_dma_channel_disable(1, true);
+    status = LPC24XX_SSP_DMA_DONE;
+    rv = -RTEMS_IO_ERROR;
+  }
+
+  /* Done */
+  if (status == LPC24XX_SSP_DMA_DONE) {
+    status = LPC24XX_SSP_DMA_AVAILABLE;
+    if (e->done != NULL) {
+      e->done(rv, e->n, e->arg);
+      e->done = NULL;
+    }
+  }
+
+  /* Set status */
+  e->status = status;
+}
+
+static rtems_status_code lpc24xx_ssp_init(rtems_libi2c_bus_t *bus)
+{
+  rtems_status_code sc = RTEMS_SUCCESSFUL;
+  rtems_interrupt_level level;
+  lpc24xx_ssp_bus_entry *e = (lpc24xx_ssp_bus_entry *) bus;
+  volatile lpc24xx_ssp *regs = e->regs;
+  unsigned pclk = lpc24xx_cclk();
+  unsigned pre =
+    ((pclk + LPC24XX_SSP_BAUD_RATE - 1) / LPC24XX_SSP_BAUD_RATE + 1) & ~1U;
+  lpc24xx_module module = LPC24XX_MODULE_SSP_0;
+  rtems_vector_number vector = UINT32_MAX;
+
+  if (lpc24xx_ssp_dma_data.status == LPC24XX_SSP_DMA_NOT_INITIALIZED) {
+    lpc24xx_ssp_dma_status status = LPC24XX_SSP_DMA_INVALID;
+
+    /* Test and set DMA support status */
+    rtems_interrupt_disable(level);
+    status = lpc24xx_ssp_dma_data.status;
+    if (status == LPC24XX_SSP_DMA_NOT_INITIALIZED) {
+      lpc24xx_ssp_dma_data.status = LPC24XX_SSP_DMA_INITIALIZATION;
+    }
+    rtems_interrupt_enable(level);
+
+    if (status == LPC24XX_SSP_DMA_NOT_INITIALIZED) {
+      /* Install DMA interrupt handler */
+      sc = rtems_interrupt_handler_install(
+        LPC24XX_IRQ_DMA,
+        "SSP DMA",
+        RTEMS_INTERRUPT_SHARED,
+        lpc24xx_ssp_dma_handler,
+        &lpc24xx_ssp_dma_data
+      );
+      RTEMS_CHECK_SC(sc, "install DMA interrupt handler");
+
+      /* Set DMA support status */
+      lpc24xx_ssp_dma_data.status = LPC24XX_SSP_DMA_AVAILABLE;
+    }
+  }
+
+  /* Disable module */
+  regs->cr1 = 0;
+
+  switch ((uintptr_t) regs) {
+    case SSP0_BASE_ADDR:
+      module = LPC24XX_MODULE_SSP_0;
+      vector = LPC24XX_IRQ_SPI_SSP_0;
+      break;
+    case SSP1_BASE_ADDR:
+      module = LPC24XX_MODULE_SSP_1;
+      vector = LPC24XX_IRQ_SSP_1;
+      break;
+    default:
+      return RTEMS_IO_ERROR;
+  }
+
+  /* Set clock select */
+  sc = lpc24xx_module_enable(module, LPC24XX_MODULE_PCLK_DEFAULT);
+  RTEMS_CHECK_SC(sc, "enable module clock");
+
+  /* Set serial clock rate to save value */
+  regs->cr0 = SET_SSP_CR0_SCR(0, 255);
+
+  /* Set clock prescaler */
+  if (pre > 254) {
+    pre = 254;
+  } else if (pre < 2) {
+    pre = 2;
+  }
+  regs->cpsr = pre;
+
+  /* Save clock value */
+  e->clock = pclk / pre;
+
+  /* Enable module and loop back mode */
+  regs->cr1 = SSP_CR1_LBM | SSP_CR1_SSE;
+
+  /* Install interrupt handler */
+  sc = rtems_interrupt_handler_install(
+    vector,
+    "SSP",
+    RTEMS_INTERRUPT_UNIQUE,
+    lpc24xx_ssp_handler,
+    e
+  );
+  RTEMS_CHECK_SC(sc, "install interrupt handler");
+
+  /* Enable receiver overrun interrupts */
+  e->regs->imsc = SSP_IMSC_RORIM;
+
+  return RTEMS_SUCCESSFUL;
+}
+
+static rtems_status_code lpc24xx_ssp_send_start(rtems_libi2c_bus_t *bus)
+{
+  return RTEMS_SUCCESSFUL;
+}
+
+static rtems_status_code lpc24xx_ssp_send_stop(rtems_libi2c_bus_t *bus)
+{
+  lpc24xx_ssp_bus_entry *e = (lpc24xx_ssp_bus_entry *) bus;
+
+  /* Release DMA support */
+  if (lpc24xx_ssp_dma_data.bus == e) {
+    if (lpc24xx_ssp_dma_data.status == LPC24XX_SSP_DMA_AVAILABLE) {
+      lpc24xx_dma_channel_release(0);
+      lpc24xx_dma_channel_release(1);
+      lpc24xx_ssp_dma_data.bus = NULL;
+    } else {
+      return RTEMS_RESOURCE_IN_USE;
+    }
+  }
+
+  return RTEMS_SUCCESSFUL;
+}
+
+static rtems_status_code lpc24xx_ssp_send_addr(
+  rtems_libi2c_bus_t *bus,
+  uint32_t addr,
+  int rw
+)
+{
+  lpc24xx_ssp_bus_entry *e = (lpc24xx_ssp_bus_entry *) bus;
+
+  if (lpc24xx_ssp_is_busy(e)) {
+    return RTEMS_RESOURCE_IN_USE;
+  }
+
+  return RTEMS_SUCCESSFUL;
+}
+
+static int lpc24xx_ssp_set_transfer_mode(
+  rtems_libi2c_bus_t *bus,
+  const rtems_libi2c_tfr_mode_t *mode
+)
+{
+  lpc24xx_ssp_bus_entry *e = (lpc24xx_ssp_bus_entry *) bus;
+  volatile lpc24xx_ssp *regs = e->regs;
+  unsigned clk = e->clock;
+  unsigned br = mode->baudrate;
+  unsigned scr = (clk + br - 1) / br;
+
+  if (lpc24xx_ssp_is_busy(e)) {
+    return -RTEMS_RESOURCE_IN_USE;
+  }
+
+  if (mode->bits_per_char != 8) {
+    return -RTEMS_INVALID_NUMBER;
+  }
+
+  if (mode->lsb_first) {
+    return -RTEMS_INVALID_NUMBER;
+  }
+
+  if (br == 0) {
+    return -RTEMS_INVALID_NUMBER;
+  }
+
+  /* Compute new prescaler if necessary */
+  if (scr > 256 || scr < 1) {
+    unsigned pre = regs->cpsr;
+    unsigned pclk = clk * pre;
+
+    while (scr > 256) {
+      if (pre > 252) {
+        return -RTEMS_INVALID_NUMBER;
+      }
+      pre += 2;
+      clk = pclk / pre;
+      scr = (clk + br - 1) / br;
+    }
+
+    while (scr < 1) {
+      if (pre < 4) {
+        return -RTEMS_INVALID_NUMBER;
+      }
+      pre -= 2;
+      clk = pclk / pre;
+      scr = (clk + br - 1) / br;
+    }
+
+    regs->cpsr = pre;
+    e->clock = clk;
+  }
+
+  /* Adjust SCR */
+  --scr;
+
+  e->idle_char = mode->idle_char;
+
+  while ((regs->sr & SSP_SR_TFE) == 0) {
+    /* Wait */
+  }
+
+  regs->cr0 = SET_SSP_CR0_DSS(0, 0x7)
+    | SET_SSP_CR0_SCR(0, scr)
+    | (mode->clock_inv ? SSP_CR0_CPOL : 0)
+    | (mode->clock_phs ? SSP_CR0_CPHA : 0);
+
+  return 0;
+}
+
+static int lpc24xx_ssp_read_write(
+  rtems_libi2c_bus_t *bus,
+  unsigned char *in,
+  const unsigned char *out,
+  int n
+)
+{
+  lpc24xx_ssp_bus_entry *e = (lpc24xx_ssp_bus_entry *) bus;
+  volatile lpc24xx_ssp *regs = e->regs;
+  int r = 0;
+  int w = 0;
+  int dr = 1;
+  int dw = 1;
+  int m = 0;
+  uint32_t sr = regs->sr;
+  unsigned char trash = 0;
+  unsigned char idle_char = (unsigned char) e->idle_char;
+
+  if (lpc24xx_ssp_is_busy(e)) {
+    return -RTEMS_RESOURCE_IN_USE;
+  }
+
+  if (n < 0) {
+    return -RTEMS_INVALID_SIZE;
+  }
+
+  /* Disable DMA on SSP */
+  regs->dmacr = 0;
+
+  if (in == NULL) {
+    dr = 0;
+    in = &trash;
+  }
+
+  if (out == NULL) {
+    dw = 0;
+    out = &idle_char;
+  }
+
+  /*
+   * Assumption: The transmit and receive FIFOs are empty.  If this assumption
+   * is not true an input buffer overflow may occur or we may never exit the
+   * loop due to data loss.  This is only possible if entities external to this
+   * driver operate on the SSP.
+   */
+
+  while (w < n) {
+    /* FIFO capacity */
+    m = w - r;
+
+    /* Write */
+    if ((sr & SSP_SR_TNF) != 0 && m < LPC24XX_SSP_FIFO_SIZE) {
+      regs->dr = *out;
+      ++w;
+      out += dw;
+    }
+
+    /* Read */
+    if ((sr & SSP_SR_RNE) != 0) {
+      *in = (unsigned char) regs->dr;
+      ++r;
+      in += dr;
+    }
+
+    /* New status */
+    sr = regs->sr;
+  }
+
+  /* Read outstanding input */
+  while (r < n) {
+    /* Wait */
+    do {
+      sr = regs->sr;
+    } while ((sr & SSP_SR_RNE) == 0);
+
+    /* Read */
+    *in = (unsigned char) regs->dr;
+    ++r;
+    in += dr;
+  }
+
+  return n;
+}
+
+static int lpc24xx_ssp_read_write_async(
+  rtems_libi2c_bus_t *bus,
+  unsigned char *in,
+  const unsigned char *out,
+  int n,
+  rtems_libi2c_read_write_done_t done,
+  void *arg
+)
+{
+  rtems_interrupt_level level;
+  lpc24xx_ssp_bus_entry *e = (lpc24xx_ssp_bus_entry *) bus;
+  volatile lpc24xx_ssp *ssp = e->regs;
+  volatile lpc24xx_dma_channel *receive_channel = GPDMA_CH_BASE_ADDR(0);
+  volatile lpc24xx_dma_channel *transmit_channel = GPDMA_CH_BASE_ADDR(1);
+  uint32_t di = GPDMA_CH_CTRL_DI;
+  uint32_t si = GPDMA_CH_CTRL_SI;
+
+  if (n < 0 || n > (int) GPDMA_CH_CTRL_TSZ_MAX) {
+    return -RTEMS_INVALID_SIZE;
+  }
+
+  /* Try to reserve DMA support for this bus */
+  if (lpc24xx_ssp_dma_data.bus == NULL) {
+    rtems_interrupt_disable(level);
+    if (lpc24xx_ssp_dma_data.bus == NULL) {
+      lpc24xx_ssp_dma_data.bus = e;
+    }
+    rtems_interrupt_enable(level);
+
+    /* Try to obtain DMA channels */
+    if (lpc24xx_ssp_dma_data.bus == e) {
+      rtems_status_code cs0 = lpc24xx_dma_channel_obtain(0);
+      rtems_status_code cs1 = lpc24xx_dma_channel_obtain(1);
+
+      if (cs0 != RTEMS_SUCCESSFUL || cs1 != RTEMS_SUCCESSFUL) {
+        if (cs0 == RTEMS_SUCCESSFUL) {
+          lpc24xx_dma_channel_release(0);
+        }
+        if (cs1 == RTEMS_SUCCESSFUL) {
+          lpc24xx_dma_channel_release(1);
+        }
+        lpc24xx_ssp_dma_data.bus = NULL;
+      }
+    }
+  }
+
+  /* Check if DMA support is available */
+  if (lpc24xx_ssp_dma_data.bus != e
+    || lpc24xx_ssp_dma_data.status != LPC24XX_SSP_DMA_AVAILABLE) {
+    return -RTEMS_RESOURCE_IN_USE;
+  }
+
+  /* Set DMA support status and parameter */
+  lpc24xx_ssp_dma_data.status = LPC24XX_SSP_DMA_WAIT;
+  lpc24xx_ssp_dma_data.done = done;
+  lpc24xx_ssp_dma_data.n = n;
+  lpc24xx_ssp_dma_data.arg = arg;
+
+  /* Enable DMA on SSP */
+  ssp->dmacr = SSP_DMACR_RXDMAE | SSP_DMACR_TXDMAE;
+
+  /* Receive */
+  if (in != NULL) {
+    receive_channel->desc.dest = (uint32_t) in;
+  } else {
+    receive_channel->desc.dest = (uint32_t) &lpc24xx_ssp_trash;
+    di = 0;
+  }
+  receive_channel->desc.src = (uint32_t) &ssp->dr;
+  receive_channel->desc.lli = 0;
+  receive_channel->desc.ctrl = SET_GPDMA_CH_CTRL_TSZ(0, n)
+    | SET_GPDMA_CH_CTRL_SBSZ(0, GPDMA_CH_CTRL_BSZ_4)
+    | SET_GPDMA_CH_CTRL_DBSZ(0, GPDMA_CH_CTRL_BSZ_4)
+    | SET_GPDMA_CH_CTRL_SW(0, GPDMA_CH_CTRL_W_8)
+    | SET_GPDMA_CH_CTRL_DW(0, GPDMA_CH_CTRL_W_8)
+    | GPDMA_CH_CTRL_ITC
+    | di;
+  receive_channel->cfg = SET_GPDMA_CH_CFG_SRCPER(0, GPDMA_CH_CFG_PER_SSP1_RX)
+    | SET_GPDMA_CH_CFG_FLOW(0, GPDMA_CH_CFG_FLOW_PER_TO_MEM_DMA)
+    | GPDMA_CH_CFG_IE
+    | GPDMA_CH_CFG_ITC
+    | GPDMA_CH_CFG_EN;
+
+  /* Transmit */
+  if (out != NULL) {
+    transmit_channel->desc.src = (uint32_t) out;
+  } else {
+    transmit_channel->desc.src = (uint32_t) &e->idle_char;
+    si = 0;
+  }
+  transmit_channel->desc.dest = (uint32_t) &ssp->dr;
+  transmit_channel->desc.lli = 0;
+  transmit_channel->desc.ctrl = SET_GPDMA_CH_CTRL_TSZ(0, n)
+    | SET_GPDMA_CH_CTRL_SBSZ(0, GPDMA_CH_CTRL_BSZ_4)
+    | SET_GPDMA_CH_CTRL_DBSZ(0, GPDMA_CH_CTRL_BSZ_4)
+    | SET_GPDMA_CH_CTRL_SW(0, GPDMA_CH_CTRL_W_8)
+    | SET_GPDMA_CH_CTRL_DW(0, GPDMA_CH_CTRL_W_8)
+    | GPDMA_CH_CTRL_ITC
+    | si;
+  transmit_channel->cfg = SET_GPDMA_CH_CFG_DESTPER(0, GPDMA_CH_CFG_PER_SSP1_TX)
+    | SET_GPDMA_CH_CFG_FLOW(0, GPDMA_CH_CFG_FLOW_MEM_TO_PER_DMA)
+    | GPDMA_CH_CFG_IE
+    | GPDMA_CH_CFG_ITC
+    | GPDMA_CH_CFG_EN;
+
+  return 0;
+}
+
+static int lpc24xx_ssp_read(rtems_libi2c_bus_t *bus, unsigned char *in, int n)
+{
+  return lpc24xx_ssp_read_write(bus, in, NULL, n);
+}
+
+static int lpc24xx_ssp_write(
+  rtems_libi2c_bus_t *bus,
+  unsigned char *out,
+  int n
+)
+{
+  return lpc24xx_ssp_read_write(bus, NULL, out, n);
+}
+
+static int lpc24xx_ssp_ioctl(rtems_libi2c_bus_t *bus, int cmd, void *arg)
+{
+  int rv = -1;
+  const rtems_libi2c_tfr_mode_t *tm = (const rtems_libi2c_tfr_mode_t *) arg;
+  rtems_libi2c_read_write_t *rw = (rtems_libi2c_read_write_t *) arg;
+  rtems_libi2c_read_write_async_t *rwa =
+    (rtems_libi2c_read_write_async_t *) arg;
+
+  switch (cmd) {
+    case RTEMS_LIBI2C_IOCTL_READ_WRITE:
+      rv = lpc24xx_ssp_read_write(bus, rw->rd_buf, rw->wr_buf, rw->byte_cnt);
+      break;
+    case RTEMS_LIBI2C_IOCTL_READ_WRITE_ASYNC:
+      rv = lpc24xx_ssp_read_write_async(
+        bus,
+        rwa->rd_buf,
+        rwa->wr_buf,
+        rwa->byte_cnt,
+        rwa->done,
+        rwa->arg
+      );
+      break;
+    case RTEMS_LIBI2C_IOCTL_SET_TFRMODE:
+      rv = lpc24xx_ssp_set_transfer_mode(bus, tm);
+      break;
+    default:
+      rv = -RTEMS_NOT_DEFINED;
+      break;
+  }
+
+  return rv;
+}
+
+static const rtems_libi2c_bus_ops_t lpc24xx_ssp_ops = {
+  .init = lpc24xx_ssp_init,
+  .send_start = lpc24xx_ssp_send_start,
+  .send_stop = lpc24xx_ssp_send_stop,
+  .send_addr = lpc24xx_ssp_send_addr,
+  .read_bytes = lpc24xx_ssp_read,
+  .write_bytes = lpc24xx_ssp_write,
+  .ioctl = lpc24xx_ssp_ioctl
+};
+
+static lpc24xx_ssp_bus_entry lpc24xx_ssp_bus_table [LPC24XX_SSP_NUMBER] = {
+  {
+    /* SSP 0 */
+    .bus = {
+      .ops = &lpc24xx_ssp_ops,
+      .size = sizeof(lpc24xx_ssp_bus_entry)
+    },
+    .regs = (volatile lpc24xx_ssp *) SSP0_BASE_ADDR,
+    .clock = 0,
+    .idle_char = 0xffffffff
+  }, {
+    /* SSP 1 */
+    .bus = {
+      .ops = &lpc24xx_ssp_ops,
+      .size = sizeof(lpc24xx_ssp_bus_entry)
+    },
+    .regs = (volatile lpc24xx_ssp *) SSP1_BASE_ADDR,
+    .clock = 0,
+    .idle_char = 0xffffffff
+  }
+};
+
+rtems_libi2c_bus_t * const lpc24xx_ssp_0 =
+  (rtems_libi2c_bus_t *) &lpc24xx_ssp_bus_table [0];
+
+rtems_libi2c_bus_t * const lpc24xx_ssp_1 =
+  (rtems_libi2c_bus_t *) &lpc24xx_ssp_bus_table [1];
diff --git a/bsps/arm/lpc24xx/start/bspidle.c b/bsps/arm/lpc24xx/start/bspidle.c
new file mode 100644
index 0000000000..42a3e106f3
--- /dev/null
+++ b/bsps/arm/lpc24xx/start/bspidle.c
@@ -0,0 +1,39 @@
+/**
+ * @file
+ *
+ * @ingroup lpc24xx
+ *
+ * @brief Idle task.
+ */
+
+/*
+ * Copyright (c) 2008-2011 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/lpc24xx.h>
+
+void *bsp_idle_thread(uintptr_t ignored)
+{
+  while (true) {
+    #ifdef ARM_MULTILIB_ARCH_V4
+      /*
+       * Set power mode to idle.  Causes the processor clock to be stopped,
+       * while on-chip peripherals remain active.  Any enabled interrupt from a
+       * peripheral or an external interrupt source will cause the processor to
+       * resume execution.
+       */
+      PCON = 0x1;
+    #endif
+  }
+}
diff --git a/bsps/arm/lpc24xx/start/dma-copy.c b/bsps/arm/lpc24xx/start/dma-copy.c
new file mode 100644
index 0000000000..73a8cdc3ab
--- /dev/null
+++ b/bsps/arm/lpc24xx/start/dma-copy.c
@@ -0,0 +1,194 @@
+/**
+ * @file
+ *
+ * @ingroup lpc24xx_dma
+ *
+ * @brief Direct memory access (DMA) support.
+ */
+
+/*
+ * Copyright (c) 2008, 2009
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * D-82178 Puchheim
+ * Germany
+ * <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp/lpc24xx.h>
+#include <bsp/dma.h>
+#include <bsp/irq.h>
+
+static rtems_id lpc24xx_dma_sema_table [GPDMA_CH_NUMBER];
+
+static bool lpc24xx_dma_status_table [GPDMA_CH_NUMBER];
+
+static void lpc24xx_dma_copy_handler(void *arg)
+{
+  /* Get interrupt status */
+  uint32_t tc = GPDMA_INT_TCSTAT;
+  uint32_t err = GPDMA_INT_ERR_STAT;
+
+  /* Clear interrupt status */
+  GPDMA_INT_TCCLR = tc;
+  GPDMA_INT_ERR_CLR = err;
+
+  /* Check channel 0 */
+  if ((tc & GPDMA_STATUS_CH_0) != 0) {
+    rtems_semaphore_release(lpc24xx_dma_sema_table [0]);
+  }
+  lpc24xx_dma_status_table [0] = (err & GPDMA_STATUS_CH_0) == 0;
+
+  /* Check channel 1 */
+  if ((tc & GPDMA_STATUS_CH_1) != 0) {
+    rtems_semaphore_release(lpc24xx_dma_sema_table [1]);
+  }
+  lpc24xx_dma_status_table [1] = (err & GPDMA_STATUS_CH_1) == 0;
+}
+
+rtems_status_code lpc24xx_dma_copy_initialize(void)
+{
+  rtems_status_code sc = RTEMS_SUCCESSFUL;
+  rtems_id id0 = RTEMS_ID_NONE;
+  rtems_id id1 = RTEMS_ID_NONE;
+
+  /* Create semaphore for channel 0 */
+  sc = rtems_semaphore_create(
+    rtems_build_name('D', 'M', 'A', '0'),
+    0,
+    RTEMS_LOCAL | RTEMS_FIFO | RTEMS_SIMPLE_BINARY_SEMAPHORE,
+    0,
+    &id0
+  );
+  if (sc != RTEMS_SUCCESSFUL) {
+    return sc;
+  }
+
+  /* Create semaphore for channel 1 */
+  sc = rtems_semaphore_create(
+    rtems_build_name('D', 'M', 'A', '1'),
+    0,
+    RTEMS_LOCAL | RTEMS_FIFO | RTEMS_SIMPLE_BINARY_SEMAPHORE,
+    0,
+    &id1
+  );
+  if (sc != RTEMS_SUCCESSFUL) {
+    rtems_semaphore_delete(id0);
+
+    return sc;
+  }
+
+  /* Install DMA interrupt handler */
+  sc = rtems_interrupt_handler_install(
+    LPC24XX_IRQ_DMA,
+    "DMA copy",
+    RTEMS_INTERRUPT_UNIQUE,
+    lpc24xx_dma_copy_handler,
+    NULL
+  );
+  if (sc != RTEMS_SUCCESSFUL) {
+    rtems_semaphore_delete(id0);
+    rtems_semaphore_delete(id1);
+
+    return sc;
+  }
+
+  /* Initialize global data */
+  lpc24xx_dma_sema_table [0] = id0;
+  lpc24xx_dma_sema_table [1] = id1;
+
+  return RTEMS_SUCCESSFUL;
+}
+
+rtems_status_code lpc24xx_dma_copy_release(void)
+{
+  rtems_status_code sc = RTEMS_SUCCESSFUL;
+  rtems_status_code rsc = RTEMS_SUCCESSFUL;
+
+  sc = rtems_interrupt_handler_remove(
+    LPC24XX_IRQ_DMA,
+    lpc24xx_dma_copy_handler,
+    NULL
+  );
+  if (sc != RTEMS_SUCCESSFUL) {
+    rsc = sc;
+  }
+
+  sc = rtems_semaphore_delete(lpc24xx_dma_sema_table [0]);
+  if (sc != RTEMS_SUCCESSFUL) {
+    rsc = sc;
+  }
+
+  sc = rtems_semaphore_delete(lpc24xx_dma_sema_table [1]);
+  if (sc != RTEMS_SUCCESSFUL) {
+    rsc = sc;
+  }
+
+  return rsc;
+}
+
+rtems_status_code lpc24xx_dma_copy(
+  unsigned channel,
+  void *dest,
+  const void *src,
+  size_t n,
+  size_t width
+)
+{
+  volatile lpc24xx_dma_channel *e = GPDMA_CH_BASE_ADDR(channel);
+  uint32_t w = GPDMA_CH_CTRL_W_8;
+
+  switch (width) {
+    case 4:
+      w = GPDMA_CH_CTRL_W_32;
+      break;
+    case 2:
+      w = GPDMA_CH_CTRL_W_16;
+      break;
+  }
+
+  n = n >> w;
+
+  if (n > 0U && n < 4096U) {
+    e->desc.src = (uint32_t) src;
+    e->desc.dest = (uint32_t) dest;
+    e->desc.lli = 0;
+    e->desc.ctrl = SET_GPDMA_CH_CTRL_TSZ(0, n)
+      | SET_GPDMA_CH_CTRL_SBSZ(0, GPDMA_CH_CTRL_BSZ_1)
+      | SET_GPDMA_CH_CTRL_DBSZ(0, GPDMA_CH_CTRL_BSZ_1)
+      | SET_GPDMA_CH_CTRL_SW(0, w)
+      | SET_GPDMA_CH_CTRL_DW(0, w)
+      | GPDMA_CH_CTRL_ITC
+      | GPDMA_CH_CTRL_SI
+      | GPDMA_CH_CTRL_DI;
+    e->cfg = SET_GPDMA_CH_CFG_FLOW(0, GPDMA_CH_CFG_FLOW_MEM_TO_MEM_DMA)
+      | GPDMA_CH_CFG_IE
+      | GPDMA_CH_CFG_ITC
+      | GPDMA_CH_CFG_EN;
+  } else {
+    return RTEMS_INVALID_SIZE;
+  }
+
+  return RTEMS_SUCCESSFUL;
+}
+
+rtems_status_code lpc24xx_dma_copy_wait(unsigned channel)
+{
+  rtems_status_code sc = RTEMS_SUCCESSFUL;
+
+  sc = rtems_semaphore_obtain(
+    lpc24xx_dma_sema_table [channel],
+    RTEMS_WAIT,
+    RTEMS_NO_TIMEOUT
+  );
+  if (sc != RTEMS_SUCCESSFUL) {
+    return sc;
+  }
+
+  return lpc24xx_dma_status_table [channel]
+    ? RTEMS_SUCCESSFUL : RTEMS_IO_ERROR;
+}
diff --git a/bsps/arm/lpc24xx/start/dma.c b/bsps/arm/lpc24xx/start/dma.c
new file mode 100644
index 0000000000..a67760ad3e
--- /dev/null
+++ b/bsps/arm/lpc24xx/start/dma.c
@@ -0,0 +1,102 @@
+/**
+ * @file
+ *
+ * @ingroup lpc24xx_dma
+ *
+ * @brief Direct memory access (DMA) support.
+ */
+
+/*
+ * Copyright (c) 2008-2011 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems/endian.h>
+
+#include <bsp/lpc24xx.h>
+#include <bsp/dma.h>
+#include <bsp/io.h>
+
+/**
+ * @brief Table that indicates if a channel is currently occupied.
+ */
+static bool lpc24xx_dma_channel_occupation [GPDMA_CH_NUMBER];
+
+void lpc24xx_dma_initialize(void)
+{
+  /* Enable module power */
+  lpc24xx_module_enable(LPC24XX_MODULE_GPDMA, LPC24XX_MODULE_PCLK_DEFAULT);
+
+  /* Disable module */
+  GPDMA_CONFIG = 0;
+
+  /* Reset registers */
+  GPDMA_SOFT_SREQ = 0;
+  GPDMA_SOFT_BREQ = 0;
+  GPDMA_SOFT_LSREQ = 0;
+  GPDMA_SOFT_LBREQ = 0;
+  GPDMA_SYNC = 0;
+  GPDMA_CH0_CFG = 0;
+  GPDMA_CH1_CFG = 0;
+
+  /* Enable module */
+  #if BYTE_ORDER == LITTLE_ENDIAN
+    GPDMA_CONFIG = GPDMA_CONFIG_EN;
+  #else
+    GPDMA_CONFIG = GPDMA_CONFIG_EN | GPDMA_CONFIG_MODE;
+  #endif
+}
+
+rtems_status_code lpc24xx_dma_channel_obtain(unsigned channel)
+{
+  if (channel < GPDMA_CH_NUMBER) {
+    rtems_interrupt_level level;
+    bool occupation = true;
+
+    rtems_interrupt_disable(level);
+    occupation = lpc24xx_dma_channel_occupation [channel];
+    lpc24xx_dma_channel_occupation [channel] = true;
+    rtems_interrupt_enable(level);
+
+    return occupation ? RTEMS_RESOURCE_IN_USE : RTEMS_SUCCESSFUL;
+  } else {
+    return RTEMS_INVALID_ID;
+  }
+}
+
+void lpc24xx_dma_channel_release(unsigned channel)
+{
+  if (channel < GPDMA_CH_NUMBER) {
+    lpc24xx_dma_channel_occupation [channel] = false;
+  }
+}
+
+void lpc24xx_dma_channel_disable(unsigned channel, bool force)
+{
+  if (channel < GPDMA_CH_NUMBER) {
+    volatile lpc24xx_dma_channel *ch = GPDMA_CH_BASE_ADDR(channel);
+    uint32_t cfg = ch->cfg;
+
+    if (!force) {
+      /* Halt */
+      ch->cfg |= GPDMA_CH_CFG_HALT;
+
+      /* Wait for inactive */
+      do {
+        cfg = ch->cfg;
+      } while ((cfg & GPDMA_CH_CFG_ACTIVE) != 0);
+    }
+
+    /* Disable */
+    ch->cfg &= ~GPDMA_CH_CFG_EN;
+  }
+}
diff --git a/bsps/arm/lpc24xx/start/io.c b/bsps/arm/lpc24xx/start/io.c
new file mode 100644
index 0000000000..c28b5182f0
--- /dev/null
+++ b/bsps/arm/lpc24xx/start/io.c
@@ -0,0 +1,570 @@
+/**
+ * @file
+ *
+ * @ingroup lpc24xx_io
+ *
+ * @brief Input and output module.
+ */
+
+/*
+ * Copyright (c) 2009-2012 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <bsp.h>
+#include <bsp/io.h>
+#include <bsp/start.h>
+#include <bsp/system-clocks.h>
+
+#define LPC24XX_PIN_SELECT(index) ((index) >> 4U)
+
+#define LPC24XX_PIN_SELECT_SHIFT(index) (((index) & 0xfU) << 1U)
+
+#define LPC24XX_PIN_SELECT_MASK 0x3U
+
+rtems_status_code lpc24xx_gpio_config(
+  unsigned index,
+  lpc24xx_gpio_settings settings
+)
+{
+  if (index <= LPC24XX_IO_INDEX_MAX) {
+    rtems_interrupt_level level;
+    uint32_t port = LPC24XX_IO_PORT(index);
+    uint32_t port_bit = LPC24XX_IO_PORT_BIT(index);
+    uint32_t output = (settings & LPC24XX_GPIO_OUTPUT) != 0 ? 1U : 0U;
+    uint32_t resistor = settings & 0x3U;
+    #ifdef ARM_MULTILIB_ARCH_V4
+      uint32_t select = LPC24XX_PIN_SELECT(index);
+      uint32_t shift = LPC24XX_PIN_SELECT_SHIFT(index);
+
+      /* Get resistor flags */
+      switch (resistor) {
+        case LPC24XX_GPIO_RESISTOR_PULL_UP:
+          resistor = 0x0U;
+          break;
+        case LPC24XX_GPIO_RESISTOR_NONE:
+          resistor = 0x2U;
+          break;
+        case LPC24XX_GPIO_RESISTOR_PULL_DOWN:
+          resistor = 0x3U;
+          break;
+        default:
+          return RTEMS_INVALID_NUMBER;
+      }
+    #else
+      uint32_t iocon_mask = IOCON_HYS | IOCON_INV
+        | IOCON_SLEW | IOCON_OD | IOCON_FILTER;
+      uint32_t iocon = (settings & iocon_mask) | IOCON_ADMODE;
+      uint32_t iocon_invalid = settings & ~(iocon_mask | LPC24XX_GPIO_OUTPUT);
+
+      /* Get resistor flags */
+      switch (resistor) {
+        case LPC24XX_GPIO_RESISTOR_NONE:
+          resistor = IOCON_MODE(0);
+          break;
+        case LPC24XX_GPIO_RESISTOR_PULL_DOWN:
+          resistor = IOCON_MODE(1);
+          break;
+        case LPC24XX_GPIO_RESISTOR_PULL_UP:
+          resistor = IOCON_MODE(2);
+          break;
+        case LPC17XX_GPIO_HYSTERESIS:
+          resistor = IOCON_MODE(3);
+          break;
+      }
+      iocon |= resistor;
+
+      if (iocon_invalid != 0) {
+        return RTEMS_INVALID_NUMBER;
+      }
+
+      if (output && (settings & LPC17XX_GPIO_INPUT_INVERT) != 0) {
+        return RTEMS_INVALID_NUMBER;
+      }
+
+      if ((settings & LPC17XX_GPIO_INPUT_FILTER) == 0) {
+        iocon |= IOCON_FILTER;
+      } else {
+        iocon &= ~IOCON_FILTER;
+      }
+    #endif
+
+    rtems_interrupt_disable(level);
+
+    #ifdef ARM_MULTILIB_ARCH_V4
+      /* Resistor */
+      LPC24XX_PINMODE [select] =
+        (LPC24XX_PINMODE [select] & ~(LPC24XX_PIN_SELECT_MASK << shift))
+          | ((resistor & LPC24XX_PIN_SELECT_MASK) << shift);
+    #else
+      LPC17XX_IOCON [index] = iocon;
+    #endif
+
+    rtems_interrupt_flash(level);
+
+    /* Input or output */
+    LPC24XX_FIO [port].dir =
+      (LPC24XX_FIO [port].dir & ~(1U << port_bit)) | (output << port_bit);
+
+    rtems_interrupt_enable(level);
+  } else {
+    return RTEMS_INVALID_ID;
+  }
+
+  return RTEMS_SUCCESSFUL;
+}
+
+#define LPC24XX_MODULE_ENTRY(mod, pwr, clk, idx) \
+  [mod] = { \
+    .power = pwr, \
+    .clock = clk, \
+    .index = idx \
+  }
+
+typedef struct {
+  unsigned char power : 1;
+  unsigned char clock : 1;
+  unsigned char index : 6;
+} lpc24xx_module_entry;
+
+static const lpc24xx_module_entry lpc24xx_module_table [] = {
+  #ifdef ARM_MULTILIB_ARCH_V4
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_ACF, 0, 1, 15),
+  #endif
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_ADC, 1, 1, 12),
+  #ifdef ARM_MULTILIB_ARCH_V4
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_BAT_RAM, 0, 1, 16),
+  #endif
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_CAN_0, 1, 1, 13),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_CAN_1, 1, 1, 14),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_DAC, 0, 1, 11),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_EMC, 1, 0, 11),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_ETHERNET, 1, 0, 30),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_GPDMA, 1, 1, 29),
+  #ifdef ARM_MULTILIB_ARCH_V4
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_GPIO, 0, 1, 17),
+  #else
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_GPIO, 0, 1, 15),
+  #endif
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_I2C_0, 1, 1, 7),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_I2C_1, 1, 1, 19),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_I2C_2, 1, 1, 26),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_I2S, 1, 1, 27),
+  #ifdef ARM_MULTILIB_ARCH_V4
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_LCD, 1, 0, 20),
+  #else
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_LCD, 1, 0, 0),
+  #endif
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_MCI, 1, 1, 28),
+  #ifdef ARM_MULTILIB_ARCH_V7M
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_MCPWM, 1, 1, 17),
+  #endif
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_PCB, 0, 1, 18),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_PWM_0, 1, 1, 5),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_PWM_1, 1, 1, 6),
+  #ifdef ARM_MULTILIB_ARCH_V7M
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_QEI, 1, 1, 18),
+  #endif
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_RTC, 1, 1, 9),
+  #ifdef ARM_MULTILIB_ARCH_V4
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_SPI, 1, 1, 8),
+  #endif
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_SSP_0, 1, 1, 21),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_SSP_1, 1, 1, 10),
+  #ifdef ARM_MULTILIB_ARCH_V7M
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_SSP_2, 1, 1, 20),
+  #endif
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_SYSCON, 0, 1, 30),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_TIMER_0, 1, 1, 1),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_TIMER_1, 1, 1, 2),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_TIMER_2, 1, 1, 22),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_TIMER_3, 1, 1, 23),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_UART_0, 1, 1, 3),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_UART_1, 1, 1, 4),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_UART_2, 1, 1, 24),
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_UART_3, 1, 1, 25),
+  #ifdef ARM_MULTILIB_ARCH_V7M
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_UART_4, 1, 1, 8),
+  #endif
+  #ifdef ARM_MULTILIB_ARCH_V4
+    LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_WDT, 0, 1, 0),
+  #endif
+  LPC24XX_MODULE_ENTRY(LPC24XX_MODULE_USB, 1, 0, 31)
+};
+
+static rtems_status_code lpc24xx_module_do_enable(
+  lpc24xx_module module,
+  lpc24xx_module_clock clock,
+  bool enable
+)
+{
+  rtems_interrupt_level level;
+  bool has_power = false;
+  bool has_clock = false;
+  unsigned index = 0;
+  #ifdef ARM_MULTILIB_ARCH_V7M
+    volatile lpc17xx_scb *scb = &LPC17XX_SCB;
+  #endif
+
+  if ((unsigned) module >= LPC24XX_MODULE_COUNT) {
+      return RTEMS_INVALID_ID;
+  }
+
+  #ifdef ARM_MULTILIB_ARCH_V4
+    if (clock == LPC24XX_MODULE_PCLK_DEFAULT) {
+      #if LPC24XX_PCLKDIV == 1U
+        clock = LPC24XX_MODULE_CCLK;
+      #elif LPC24XX_PCLKDIV == 2U
+        clock = LPC24XX_MODULE_CCLK_2;
+      #elif LPC24XX_PCLKDIV == 4U
+        clock = LPC24XX_MODULE_CCLK_4;
+      #elif LPC24XX_PCLKDIV == 8U
+        clock = LPC24XX_MODULE_CCLK_8;
+      #endif
+    }
+
+    if ((clock & ~LPC24XX_MODULE_CLOCK_MASK) != 0U) {
+      return RTEMS_INVALID_CLOCK;
+    }
+  #else
+    if (clock != LPC24XX_MODULE_PCLK_DEFAULT) {
+      return RTEMS_INVALID_CLOCK;
+    }
+  #endif
+
+  has_power = lpc24xx_module_table [module].power;
+  has_clock = lpc24xx_module_table [module].clock;
+  index = lpc24xx_module_table [module].index;
+
+  /* Enable or disable module */
+  if (enable) {
+    if (has_power) {
+      rtems_interrupt_disable(level);
+      #ifdef ARM_MULTILIB_ARCH_V4
+        PCONP |= 1U << index;
+      #else
+        scb->pconp |= 1U << index;
+      #endif
+      rtems_interrupt_enable(level);
+    }
+
+    if (module != LPC24XX_MODULE_USB) {
+      if (has_clock) {
+        #ifdef ARM_MULTILIB_ARCH_V4
+          unsigned clock_shift = 2U * index;
+
+          rtems_interrupt_disable(level);
+          if (clock_shift < 32U) {
+            PCLKSEL0 = (PCLKSEL0 & ~(LPC24XX_MODULE_CLOCK_MASK << clock_shift))
+                | (clock << clock_shift);
+          } else {
+            clock_shift -= 32U;
+            PCLKSEL1 = (PCLKSEL1 & ~(LPC24XX_MODULE_CLOCK_MASK << clock_shift))
+                | (clock << clock_shift);
+          }
+          rtems_interrupt_enable(level);
+        #endif
+      }
+    } else {
+      #ifdef ARM_MULTILIB_ARCH_V4
+        unsigned pllclk = lpc24xx_pllclk();
+        unsigned usbsel = pllclk / 48000000U - 1U;
+
+        if (
+          usbsel > 15U
+            || (usbsel % 2U != 1U)
+            || (pllclk % 48000000U) != 0U
+        ) {
+          return RTEMS_INCORRECT_STATE;
+        }
+
+        USBCLKCFG = usbsel;
+      #else
+        uint32_t pllclk = lpc24xx_pllclk();
+        uint32_t usbclk = 48000000U;
+
+        if (pllclk % usbclk == 0U) {
+          uint32_t usbdiv = pllclk / usbclk;
+
+          scb->usbclksel = LPC17XX_SCB_USBCLKSEL_USBDIV(usbdiv)
+            | LPC17XX_SCB_USBCLKSEL_USBSEL(1);
+        } else {
+          return RTEMS_INCORRECT_STATE;
+        }
+      #endif
+    }
+  } else {
+    if (has_power) {
+      rtems_interrupt_disable(level);
+      #ifdef ARM_MULTILIB_ARCH_V4
+        PCONP &= ~(1U << index);
+      #else
+        scb->pconp &= ~(1U << index);
+      #endif
+      rtems_interrupt_enable(level);
+    }
+  }
+
+  return RTEMS_SUCCESSFUL;
+}
+
+rtems_status_code lpc24xx_module_enable(
+  lpc24xx_module module,
+  lpc24xx_module_clock clock
+)
+{
+  return lpc24xx_module_do_enable(module, clock, true);
+}
+
+rtems_status_code lpc24xx_module_disable(
+  lpc24xx_module module
+)
+{
+  return lpc24xx_module_do_enable(
+    module,
+    LPC24XX_MODULE_PCLK_DEFAULT,
+    false
+  );
+}
+
+bool lpc24xx_module_is_enabled(lpc24xx_module module)
+{
+  bool enabled = false;
+
+  if ((unsigned) module < LPC24XX_MODULE_COUNT) {
+    bool has_power = lpc24xx_module_table [module].power;
+
+    if (has_power) {
+      unsigned index = lpc24xx_module_table [module].index;
+      #ifdef ARM_MULTILIB_ARCH_V4
+        uint32_t pconp = PCONP;
+      #else
+        uint32_t pconp = LPC17XX_SCB.pconp;
+      #endif
+
+      enabled = (pconp & (1U << index)) != 0;
+    } else {
+      enabled = true;
+    }
+  }
+
+  return enabled;
+}
+
+typedef rtems_status_code (*lpc24xx_pin_visitor)(
+  #ifdef ARM_MULTILIB_ARCH_V4
+    volatile uint32_t *pinsel,
+    uint32_t pinsel_mask,
+    uint32_t pinsel_value,
+  #else
+    volatile uint32_t *iocon,
+    lpc24xx_pin_range pin_range,
+  #endif
+  volatile uint32_t *fio_dir,
+  uint32_t fio_bit
+);
+
+static BSP_START_TEXT_SECTION __attribute__((flatten)) rtems_status_code
+lpc24xx_pin_set_function(
+  #ifdef ARM_MULTILIB_ARCH_V4
+    volatile uint32_t *pinsel,
+    uint32_t pinsel_mask,
+    uint32_t pinsel_value,
+  #else
+    volatile uint32_t *iocon,
+    lpc24xx_pin_range pin_range,
+  #endif
+  volatile uint32_t *fio_dir,
+  uint32_t fio_bit
+)
+{
+  #ifdef ARM_MULTILIB_ARCH_V4
+    rtems_interrupt_level level;
+
+    rtems_interrupt_disable(level);
+    *pinsel = (*pinsel & ~pinsel_mask) | pinsel_value;
+    rtems_interrupt_enable(level);
+  #else
+    uint32_t iocon_extra = 0;
+    uint32_t iocon_not_analog = IOCON_ADMODE;
+
+    /* TODO */
+    switch (pin_range.fields.type) {
+      case LPC17XX_PIN_TYPE_ADC:
+      case LPC17XX_PIN_TYPE_DAC:
+        iocon_not_analog = 0;
+        break;
+      case LPC17XX_PIN_TYPE_I2C_FAST_PLUS:
+        iocon_extra |= IOCON_HS;
+        break;
+      case LPC17XX_PIN_TYPE_OPEN_DRAIN:
+        iocon_extra |= IOCON_OD;
+        break;
+      default:
+        break;
+    }
+
+    *iocon = IOCON_FUNC(pin_range.fields.function) | iocon_extra | iocon_not_analog;
+  #endif
+
+  return RTEMS_SUCCESSFUL;
+}
+
+static BSP_START_TEXT_SECTION rtems_status_code lpc24xx_pin_check_function(
+  #ifdef ARM_MULTILIB_ARCH_V4
+    volatile uint32_t *pinsel,
+    uint32_t pinsel_mask,
+    uint32_t pinsel_value,
+  #else
+    volatile uint32_t *iocon,
+    lpc24xx_pin_range pin_range,
+  #endif
+  volatile uint32_t *fio_dir,
+  uint32_t fio_bit
+)
+{
+  #ifdef ARM_MULTILIB_ARCH_V4
+    if ((*pinsel & pinsel_mask) == pinsel_value) {
+      return RTEMS_SUCCESSFUL;
+    } else {
+      return RTEMS_IO_ERROR;
+    }
+  #else
+    /* TODO */
+    return RTEMS_IO_ERROR;
+  #endif
+}
+
+static BSP_START_TEXT_SECTION __attribute__((flatten)) rtems_status_code
+lpc24xx_pin_set_input(
+  #ifdef ARM_MULTILIB_ARCH_V4
+    volatile uint32_t *pinsel,
+    uint32_t pinsel_mask,
+    uint32_t pinsel_value,
+  #else
+    volatile uint32_t *iocon,
+    lpc24xx_pin_range pin_range,
+  #endif
+  volatile uint32_t *fio_dir,
+  uint32_t fio_bit
+)
+{
+  rtems_interrupt_level level;
+
+  rtems_interrupt_disable(level);
+  *fio_dir &= ~fio_bit;
+  #ifdef ARM_MULTILIB_ARCH_V4
+    *pinsel &= ~pinsel_mask;
+  #else
+    *iocon = IOCON_MODE(2) | IOCON_ADMODE | IOCON_FILTER;
+  #endif
+  rtems_interrupt_enable(level);
+
+  return RTEMS_SUCCESSFUL;
+}
+
+static BSP_START_TEXT_SECTION rtems_status_code lpc24xx_pin_check_input(
+  #ifdef ARM_MULTILIB_ARCH_V4
+    volatile uint32_t *pinsel,
+    uint32_t pinsel_mask,
+    uint32_t pinsel_value,
+  #else
+    volatile uint32_t *iocon,
+    lpc24xx_pin_range pin_range,
+  #endif
+  volatile uint32_t *fio_dir,
+  uint32_t fio_bit
+)
+{
+  rtems_status_code sc = RTEMS_IO_ERROR;
+  bool is_input = (*fio_dir & fio_bit) == 0;
+
+  if (is_input) {
+    #ifdef ARM_MULTILIB_ARCH_V4
+      bool is_gpio = (*pinsel & pinsel_mask) == 0;
+    #else
+      bool is_gpio = IOCON_FUNC_GET(*iocon) == 0;
+    #endif
+
+    if (is_gpio) {
+      sc = RTEMS_SUCCESSFUL;
+    }
+  }
+
+  return sc;
+}
+
+static BSP_START_DATA_SECTION const lpc24xx_pin_visitor
+  lpc24xx_pin_visitors [] = {
+  [LPC24XX_PIN_SET_FUNCTION] = lpc24xx_pin_set_function,
+  [LPC24XX_PIN_CHECK_FUNCTION] = lpc24xx_pin_check_function,
+  [LPC24XX_PIN_SET_INPUT] = lpc24xx_pin_set_input,
+  [LPC24XX_PIN_CHECK_INPUT] = lpc24xx_pin_check_input
+};
+
+BSP_START_TEXT_SECTION rtems_status_code lpc24xx_pin_config(
+  const lpc24xx_pin_range *pins,
+  lpc24xx_pin_action action
+)
+{
+  rtems_status_code sc = RTEMS_SUCCESSFUL;
+
+  if ((unsigned) action <= LPC24XX_PIN_CHECK_INPUT) {
+    lpc24xx_pin_visitor visitor = lpc24xx_pin_visitors [action];
+    lpc24xx_pin_range terminal = LPC24XX_PIN_TERMINAL;
+    lpc24xx_pin_range pin_range = *pins;
+    uint32_t previous_port_bit = pin_range.fields.port_bit;
+
+    while (sc == RTEMS_SUCCESSFUL && pin_range.value != terminal.value) {
+      uint32_t port = pin_range.fields.port;
+      uint32_t port_bit = pin_range.fields.port_bit;
+      uint32_t port_bit_last = port_bit;
+      uint32_t range = pin_range.fields.range;
+      #ifdef ARM_MULTILIB_ARCH_V4
+        uint32_t function = pin_range.fields.function;
+      #endif
+      volatile uint32_t *fio_dir = &LPC24XX_FIO [port].dir;
+
+      if (range) {
+        port_bit = previous_port_bit;
+      }
+
+      while (sc == RTEMS_SUCCESSFUL && port_bit <= port_bit_last) {
+        uint32_t index = LPC24XX_IO_INDEX_BY_PORT(port, port_bit);
+        uint32_t fio_bit = 1U << port_bit;
+        #ifdef ARM_MULTILIB_ARCH_V4
+          uint32_t select = LPC24XX_PIN_SELECT(index);
+          uint32_t shift = LPC24XX_PIN_SELECT_SHIFT(index);
+          volatile uint32_t *pinsel = &LPC24XX_PINSEL [select];
+          uint32_t pinsel_mask = LPC24XX_PIN_SELECT_MASK << shift;
+          uint32_t pinsel_value = (function & LPC24XX_PIN_SELECT_MASK) << shift;
+
+          sc = (*visitor)(pinsel, pinsel_mask, pinsel_value, fio_dir, fio_bit);
+        #else
+          volatile uint32_t *iocon = &LPC17XX_IOCON [index];
+
+          sc = (*visitor)(iocon, pin_range, fio_dir, fio_bit);
+        #endif
+
+        ++port_bit;
+      }
+
+      ++pins;
+      previous_port_bit = port_bit;
+      pin_range = *pins;
+    }
+  } else {
+    sc = RTEMS_NOT_DEFINED;
+  }
+
+  return sc;
+}
diff --git a/bsps/arm/lpc24xx/start/restart.c b/bsps/arm/lpc24xx/start/restart.c
new file mode 100644
index 0000000000..627f79d19d
--- /dev/null
+++ b/bsps/arm/lpc24xx/start/restart.c
@@ -0,0 +1,52 @@
+/**
+ * @file
+ *
+ * @ingroup lpc24xx
+ *
+ * @brief Restart implementation.
+ */
+
+/*
+ * Copyright (c) 2011-2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems.h>
+
+#include <bsp.h>
+
+void bsp_restart(void *addr)
+{
+  #ifdef ARM_MULTILIB_ARCH_V4
+    ARM_SWITCH_REGISTERS;
+    rtems_interrupt_level level;
+
+    rtems_interrupt_disable(level);
+    (void) level;
+
+    asm volatile (
+      ARM_SWITCH_TO_ARM
+      "mov pc, %[addr]\n"
+      ARM_SWITCH_BACK
+      : ARM_SWITCH_OUTPUT
+      : [addr] "r" (addr)
+    );
+  #else
+    rtems_interrupt_level level;
+    void (*start)(void) = addr;
+
+    rtems_interrupt_disable(level);
+    (void) level;
+
+    (*start)();
+  #endif
+}
diff --git a/bsps/arm/lpc24xx/start/system-clocks.c b/bsps/arm/lpc24xx/start/system-clocks.c
new file mode 100644
index 0000000000..f64fca1bed
--- /dev/null
+++ b/bsps/arm/lpc24xx/start/system-clocks.c
@@ -0,0 +1,167 @@
+/**
+ * @file
+ *
+ * @ingroup lpc24xx_clocks
+ *
+ * @brief System clocks.
+ */
+
+/*
+ * Copyright (c) 2008-2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Obere Lagerstr. 30
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems/counter.h>
+
+#include <bsp.h>
+#include <bsp/lpc24xx.h>
+#include <bsp/system-clocks.h>
+
+/**
+ * @brief Internal RC oscillator frequency in [Hz].
+ */
+#define LPC24XX_OSCILLATOR_INTERNAL 4000000U
+
+#ifndef LPC24XX_OSCILLATOR_MAIN
+  #error "unknown main oscillator frequency"
+#endif
+
+#ifndef LPC24XX_OSCILLATOR_RTC
+  #error "unknown RTC oscillator frequency"
+#endif
+
+void lpc24xx_timer_initialize(void)
+{
+  /* Reset timer */
+  T1TCR = TCR_RST;
+
+  /* Set timer mode */
+  T1CTCR = 0;
+
+  /* Set prescaler to zero */
+  T1PR = 0;
+
+  /* Reset all interrupt flags */
+  T1IR = 0xff;
+
+  /* Do not stop on a match */
+  T1MCR = 0;
+
+  /* No captures */
+  T1CCR = 0;
+
+  /* Start timer */
+  T1TCR = TCR_EN;
+
+  rtems_counter_initialize_converter(LPC24XX_PCLK);
+}
+
+CPU_Counter_ticks _CPU_Counter_read(void)
+{
+  return lpc24xx_timer();
+}
+
+void lpc24xx_micro_seconds_delay(unsigned us)
+{
+  unsigned start = lpc24xx_timer();
+  unsigned delay = us * (LPC24XX_PCLK / 1000000);
+  unsigned elapsed = 0;
+
+  do {
+    elapsed = lpc24xx_timer() - start;
+  } while (elapsed < delay);
+}
+
+#ifdef ARM_MULTILIB_ARCH_V7M
+  static unsigned lpc17xx_sysclk(unsigned clksrcsel)
+  {
+    return (clksrcsel & LPC17XX_SCB_CLKSRCSEL_CLKSRC) != 0 ?
+      LPC24XX_OSCILLATOR_MAIN
+        : LPC24XX_OSCILLATOR_INTERNAL;
+  }
+#endif
+
+unsigned lpc24xx_pllclk(void)
+{
+  #ifdef ARM_MULTILIB_ARCH_V4
+    unsigned clksrc = GET_CLKSRCSEL_CLKSRC(CLKSRCSEL);
+    unsigned pllinclk = 0;
+    unsigned pllclk = 0;
+
+    /* Get PLL input frequency */
+    switch (clksrc) {
+      case 0:
+        pllinclk = LPC24XX_OSCILLATOR_INTERNAL;
+        break;
+      case 1:
+        pllinclk = LPC24XX_OSCILLATOR_MAIN;
+        break;
+      case 2:
+        pllinclk = LPC24XX_OSCILLATOR_RTC;
+        break;
+      default:
+        return 0;
+    }
+
+    /* Get PLL output frequency */
+    if ((PLLSTAT & PLLSTAT_PLLC) != 0) {
+      uint32_t pllcfg = PLLCFG;
+      unsigned n = GET_PLLCFG_NSEL(pllcfg) + 1;
+      unsigned m = GET_PLLCFG_MSEL(pllcfg) + 1;
+
+      pllclk = (pllinclk / n) * 2 * m;
+    } else {
+      pllclk = pllinclk;
+    }
+  #else
+    volatile lpc17xx_scb *scb = &LPC17XX_SCB;
+    unsigned sysclk = lpc17xx_sysclk(scb->clksrcsel);
+    unsigned pllstat = scb->pll_0.stat;
+    unsigned pllclk = 0;
+    unsigned enabled_and_locked = LPC17XX_PLL_STAT_PLLE
+      | LPC17XX_PLL_STAT_PLOCK;
+
+    if ((pllstat & enabled_and_locked) == enabled_and_locked) {
+      unsigned m = LPC17XX_PLL_SEL_MSEL_GET(pllstat) + 1;
+
+      pllclk = sysclk * m;
+    }
+  #endif
+
+  return pllclk;
+}
+
+unsigned lpc24xx_cclk(void)
+{
+  #ifdef ARM_MULTILIB_ARCH_V4
+    /* Get PLL output frequency */
+    unsigned pllclk = lpc24xx_pllclk();
+
+    /* Get CPU frequency */
+    unsigned cclk = pllclk / (GET_CCLKCFG_CCLKSEL(CCLKCFG) + 1);
+  #else
+    volatile lpc17xx_scb *scb = &LPC17XX_SCB;
+    unsigned cclksel = scb->cclksel;
+    unsigned cclk_in = 0;
+    unsigned cclk = 0;
+
+    if ((cclksel & LPC17XX_SCB_CCLKSEL_CCLKSEL) != 0) {
+      cclk_in = lpc24xx_pllclk();
+    } else {
+      cclk_in = lpc17xx_sysclk(scb->clksrcsel);
+    }
+
+    cclk = cclk_in / LPC17XX_SCB_CCLKSEL_CCLKDIV_GET(cclksel);
+  #endif
+
+  return cclk;
+}
diff --git a/bsps/arm/lpc24xx/start/timer.c b/bsps/arm/lpc24xx/start/timer.c
new file mode 100644
index 0000000000..c700d04566
--- /dev/null
+++ b/bsps/arm/lpc24xx/start/timer.c
@@ -0,0 +1,56 @@
+/**
+ * @file
+ *
+ * @ingroup lpc24xx
+ *
+ * @brief Benchmark timer support.
+ */
+
+/*
+ * Copyright (c) 2008, 2009
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * D-82178 Puchheim
+ * Germany
+ * <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <rtems.h>
+#include <bsp.h>
+#include <rtems/btimer.h>
+
+#include <bsp/system-clocks.h>
+
+bool benchmark_timer_find_average_overhead = false;
+
+static uint32_t benchmark_timer_base;
+
+void benchmark_timer_initialize(void)
+{
+  benchmark_timer_base = lpc24xx_timer();
+}
+
+benchmark_timer_t benchmark_timer_read(void)
+{
+  uint32_t delta = lpc24xx_timer() - benchmark_timer_base;
+
+  if (benchmark_timer_find_average_overhead) {
+    return delta;
+  } else {
+    /* Value determined by tmck for NCS board */
+    if (delta > 74) {
+      return delta - 74;
+    } else {
+      return 0;
+    }
+  }
+}
+
+void benchmark_timer_disable_subtracting_average_overhead(bool find_average_overhead )
+{
+  benchmark_timer_find_average_overhead = find_average_overhead;
+}