new file mode 100644
--- /dev/null
+++ b/packages/devs/serial/sparclite/sleb/current/src/sleb_sdtr.c
@@ -0,0 +1,375 @@
+//==========================================================================
+//
+//      io/serial/sparclite/sleb_sdtr.c
+//
+//      Serial I/O interface module for SPARClite Eval Board (SLEB)
+//
+//==========================================================================
+//####COPYRIGHTBEGIN####
+//                                                                          
+// -------------------------------------------                              
+// The contents of this file are subject to the Red Hat eCos Public License 
+// Version 1.1 (the "License"); you may not use this file except in         
+// compliance with the License.  You may obtain a copy of the License at    
+// http://www.redhat.com/                                                   
+//                                                                          
+// Software distributed under the License is distributed on an "AS IS"      
+// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied.  See the 
+// License for the specific language governing rights and limitations under 
+// the License.                                                             
+//                                                                          
+// The Original Code is eCos - Embedded Configurable Operating System,      
+// released September 30, 1998.                                             
+//                                                                          
+// The Initial Developer of the Original Code is Red Hat.                   
+// Portions created by Red Hat are                                          
+// Copyright (C) 1998, 1999, 2000 Red Hat, Inc.                             
+// All Rights Reserved.                                                     
+// -------------------------------------------                              
+//                                                                          
+//####COPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):   gthomas
+// Contributors:  gthomas
+// Date:        1999-02-04
+// Purpose:     SLEB serial I/O module
+// Description: 
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <pkgconf/io.h>
+#include <pkgconf/io_serial.h>
+#include <cyg/io/io.h>
+#include <cyg/hal/hal_intr.h>
+#include <cyg/io/devtab.h>
+#include <cyg/io/serial.h>
+
+#ifdef  CYGPKG_IO_SERIAL_SPARCLITE_SLEB
+
+#include "sleb_sdtr.h"
+
+extern void diag_printf(const char *fmt, ...);
+
+#define BUFSIZE 128
+
+typedef struct sleb_sdtr_info {
+    CYG_ADDRWORD   base;
+    CYG_WORD       tx_int_num;
+    CYG_WORD       rx_int_num;
+    cyg_interrupt  tx_serial_interrupt;
+    cyg_handle_t   tx_serial_interrupt_handle;
+    cyg_interrupt  rx_serial_interrupt;
+    cyg_handle_t   rx_serial_interrupt_handle;
+    cyg_uint8      cmd_reg;
+    bool           xmit_enabled;
+} sleb_sdtr_info;
+
+static bool sleb_sdtr_init(struct cyg_devtab_entry *tab);
+static bool sleb_sdtr_putc(serial_channel *chan, unsigned char c);
+static Cyg_ErrNo sleb_sdtr_lookup(struct cyg_devtab_entry **tab, 
+                                   struct cyg_devtab_entry *sub_tab,
+                                   const char *name);
+static unsigned char sleb_sdtr_getc(serial_channel *chan);
+static bool sleb_sdtr_set_config(serial_channel *chan, cyg_serial_info_t *config);
+static void sleb_sdtr_start_xmit(serial_channel *chan);
+static void sleb_sdtr_stop_xmit(serial_channel *chan);
+
+static cyg_uint32 sleb_sdtr_tx_ISR(cyg_vector_t vector, cyg_addrword_t data);
+static void       sleb_sdtr_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data);
+static cyg_uint32 sleb_sdtr_rx_ISR(cyg_vector_t vector, cyg_addrword_t data);
+static void       sleb_sdtr_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data);
+
+static SERIAL_FUNS(sleb_sdtr_funs, 
+                   sleb_sdtr_putc, 
+                   sleb_sdtr_getc,
+                   sleb_sdtr_set_config,
+                   sleb_sdtr_start_xmit,
+                   sleb_sdtr_stop_xmit
+    );
+
+#ifdef CYGPKG_IO_SERIAL_SPARCLITE_SLEB_CON1
+static sleb_sdtr_info sleb_sdtr_info0 = {SLEB_SDTR0_BASE, SLEB_SDTR0_TX_INT, SLEB_SDTR0_RX_INT};
+#if CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON1_BUFSIZE > 0
+static unsigned char sleb_sdtr_out_buf0[CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON1_BUFSIZE];
+static unsigned char sleb_sdtr_in_buf0[CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON1_BUFSIZE];
+
+static SERIAL_CHANNEL_USING_INTERRUPTS(sleb_sdtr_channel0,
+                                       sleb_sdtr_funs, 
+                                       sleb_sdtr_info0,
+                                       CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON1_BAUD),
+                                       CYG_SERIAL_STOP_DEFAULT,
+                                       CYG_SERIAL_PARITY_DEFAULT,
+                                       CYG_SERIAL_WORD_LENGTH_DEFAULT,
+                                       CYG_SERIAL_FLAGS_DEFAULT,
+                                       &sleb_sdtr_out_buf0[0], sizeof(sleb_sdtr_out_buf0),
+                                       &sleb_sdtr_in_buf0[0], sizeof(sleb_sdtr_in_buf0)
+    );
+#else
+static SERIAL_CHANNEL(sleb_sdtr_channel0,
+                      sleb_sdtr_funs, 
+                      sleb_sdtr_info0,
+                      CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON1_BAUD),
+                      CYG_SERIAL_STOP_DEFAULT,
+                      CYG_SERIAL_PARITY_DEFAULT,
+                      CYG_SERIAL_WORD_LENGTH_DEFAULT,
+                      CYG_SERIAL_FLAGS_DEFAULT
+    );
+#endif
+
+DEVTAB_ENTRY(sleb_sdtr_io0, 
+             CYGDAT_IO_SERIAL_SPARCLITE_SLEB_CON1_NAME,
+             0,                     // Does not depend on a lower level interface
+             &cyg_io_serial_devio, 
+             sleb_sdtr_init, 
+             sleb_sdtr_lookup,     // Serial driver may need initializing
+             &sleb_sdtr_channel0
+    );
+#endif // CYGPKG_IO_SERIAL_SPARCLITE_SLEB_CON1
+
+#ifdef  CYGPKG_IO_SERIAL_SPARCLITE_SLEB_CON2
+static sleb_sdtr_info sleb_sdtr_info1 = {SLEB_SDTR1_BASE, SLEB_SDTR1_TX_INT, SLEB_SDTR1_RX_INT};
+#if CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON2_BUFSIZE > 0
+static unsigned char sleb_sdtr_out_buf1[CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON2_BUFSIZE];
+static unsigned char sleb_sdtr_in_buf1[CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON2_BUFSIZE];
+
+static SERIAL_CHANNEL_USING_INTERRUPTS(sleb_sdtr_channel1,
+                                       sleb_sdtr_funs, 
+                                       sleb_sdtr_info1,
+                                       CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON2_BAUD),
+                                       CYG_SERIAL_STOP_DEFAULT,
+                                       CYG_SERIAL_PARITY_DEFAULT,
+                                       CYG_SERIAL_WORD_LENGTH_DEFAULT,
+                                       CYG_SERIAL_FLAGS_DEFAULT,
+                                       &sleb_sdtr_out_buf1[0], sizeof(sleb_sdtr_out_buf1),
+                                       &sleb_sdtr_in_buf1[0], sizeof(sleb_sdtr_in_buf1)
+    );
+#else
+static SERIAL_CHANNEL(sleb_sdtr_channel1,
+                      sleb_sdtr_funs, 
+                      sleb_sdtr_info1,
+                      CYG_SERIAL_BAUD_RATE(CYGNUM_IO_SERIAL_SPARCLITE_SLEB_CON2_BAUD),
+                      CYG_SERIAL_STOP_DEFAULT,
+                      CYG_SERIAL_PARITY_DEFAULT,
+                      CYG_SERIAL_WORD_LENGTH_DEFAULT,
+                      CYG_SERIAL_FLAGS_DEFAULT
+    );
+#endif
+
+DEVTAB_ENTRY(sleb_sdtr_io1, 
+             CYGDAT_IO_SERIAL_SPARCLITE_SLEB_CON2_NAME,
+             0,                     // Does not depend on a lower level interface
+             &cyg_io_serial_devio, 
+             sleb_sdtr_init, 
+             sleb_sdtr_lookup,     // Serial driver may need initializing
+             &sleb_sdtr_channel1
+    );
+#endif // CYGPKG_IO_SERIAL_SPARCLITE_SLEB_CON2
+
+// Internal function to actually configure the hardware to desired baud rate, etc.
+static bool
+sleb_sdtr_config_port(serial_channel *chan, cyg_serial_info_t *new_config, bool init)
+{
+    sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv;
+    CYG_ADDRWORD port = sdtr_chan->base;
+    cyg_int32 baud_divisor;
+    cyg_int32 clk, tval;
+    unsigned char mode;
+#if 0
+    if ((new_config->baud < CYGNUM_SERIAL_BAUD_MIN) || (new_config->baud > CYGNUM_SERIAL_BAUD_MAX))
+        return false;  // Invalid baud rate
+#endif
+    baud_divisor = select_baud[new_config->baud];
+    if (baud_divisor == 0)
+        return false; // Unsupported baud rate
+    // Reset the port
+    HAL_SPARC_86940_WRITE(SDTR_CONTROL(port), SDTR_CMD_RST);
+    // Write the mode
+    mode = SDTR_MODE_MODE_ASYNC16 | 
+        select_word_length[new_config->word_length - CYGNUM_SERIAL_WORD_LENGTH_5] | 
+        select_stop_bits[new_config->stop] |
+        select_parity[new_config->parity];
+    HAL_SPARC_86940_WRITE(SDTR_CONTROL(port), mode);
+    // Set baud rate clock.
+    // ***** CAUTION! Both ports use the same time, thus they must both run at the same baud rate!
+    clk = *SLEB_CLOCK_SWITCH;  // Compute board speed
+    if (clk & 0x80)  clk = 10;
+    clk = (clk & 0x3F) * 1000000;  // in MHz
+    tval = (clk / (baud_divisor * 32)) - 1;
+    HAL_SPARC_86940_WRITE(SLEB_TIMER3_RELOAD, tval);
+    // Set up control register
+    sdtr_chan->cmd_reg = SDTR_CMD_RTS | SDTR_CMD_DTR | SDTR_CMD_TxEN;
+#ifdef CYGPKG_IO_SERIAL_SPARCLITE_SLEB_CON1
+    // Cygmon needs the receiver
+    if ((chan->out_cbuf.len != 0) || (chan == &sleb_sdtr_channel0)) {
+#else
+    if (chan->out_cbuf.len != 0) {
+#endif
+        sdtr_chan->cmd_reg |= SDTR_CMD_RxEN;
+    }
+    if (init) {
+        sdtr_chan->xmit_enabled = false;
+    }
+    HAL_SPARC_86940_WRITE(SDTR_CONTROL(port), sdtr_chan->cmd_reg);
+    if (new_config != &chan->config)
+        chan->config = *new_config;
+    return true;
+}
+
+// Function to initialize the device.  Called at bootstrap time.
+static bool 
+sleb_sdtr_init(struct cyg_devtab_entry *tab)
+{
+    serial_channel *chan = (serial_channel *)tab->priv;
+    sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv;
+#ifdef CYGDBG_IO_INIT
+    diag_printf("SLEB SERIAL init - dev: %x.%d.%d\n", sdtr_chan->base, sdtr_chan->tx_int_num, sdtr_chan->rx_int_num);
+#endif
+    (chan->callbacks->serial_init)(chan);  // Really only required for interrupt driven devices
+    if (chan->out_cbuf.len != 0) {
+        cyg_drv_interrupt_create(sdtr_chan->tx_int_num,
+                                 99,                     // Priority - unused
+                                 (cyg_addrword_t)chan,   //  Data item passed to interrupt handler
+                                 sleb_sdtr_tx_ISR,
+                                 sleb_sdtr_tx_DSR,
+                                 &sdtr_chan->tx_serial_interrupt_handle,
+                                 &sdtr_chan->tx_serial_interrupt);
+        cyg_drv_interrupt_attach(sdtr_chan->tx_serial_interrupt_handle);
+        cyg_drv_interrupt_mask(sdtr_chan->tx_int_num);
+        cyg_drv_interrupt_create(sdtr_chan->rx_int_num,
+                                 99,                     // Priority - unused
+                                 (cyg_addrword_t)chan,   //  Data item passed to interrupt handler
+                                 sleb_sdtr_rx_ISR,
+                                 sleb_sdtr_rx_DSR,
+                                 &sdtr_chan->rx_serial_interrupt_handle,
+                                 &sdtr_chan->rx_serial_interrupt);
+        cyg_drv_interrupt_attach(sdtr_chan->rx_serial_interrupt_handle);
+        cyg_drv_interrupt_unmask(sdtr_chan->rx_int_num);
+    }
+    sleb_sdtr_config_port(chan, &chan->config, true);
+    return true;
+}
+
+// This routine is called when the device is "looked" up (i.e. attached)
+static Cyg_ErrNo 
+sleb_sdtr_lookup(struct cyg_devtab_entry **tab, 
+                  struct cyg_devtab_entry *sub_tab,
+                  const char *name)
+{
+    serial_channel *chan = (serial_channel *)(*tab)->priv;
+    (chan->callbacks->serial_init)(chan);  // Really only required for interrupt driven devices
+    return ENOERR;
+}
+
+// Send a character to the device output buffer.
+// Return 'true' if character is sent to device
+static bool
+sleb_sdtr_putc(serial_channel *chan, unsigned char c)
+{
+    sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv;
+    CYG_ADDRWORD port = sdtr_chan->base;
+    cyg_uint8 status;
+    HAL_SPARC_86940_READ(SDTR_STATUS(port), status);
+    if (status & SDTR_STAT_TxRDY) {
+// Transmit buffer is empty
+        HAL_SPARC_86940_WRITE(SDTR_TXDATA(port), c);
+        return true;
+    } else {
+// No space
+        return false;
+    }
+}
+
+// Fetch a character from the device input buffer, waiting if necessary
+static unsigned char 
+sleb_sdtr_getc(serial_channel *chan)
+{
+    unsigned char c;
+    sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv;
+    CYG_ADDRWORD port = sdtr_chan->base;
+    cyg_uint8 status;
+    HAL_SPARC_86940_READ(SDTR_STATUS(port), status);
+    while ((status & SDTR_STAT_RxRDY) == 0) 
+        HAL_SPARC_86940_READ(SDTR_STATUS(port), status);  // Wait for char
+    HAL_SPARC_86940_READ(SDTR_RXDATA(port), c);
+    return c;
+}
+
+// Set up the device characteristics; baud rate, etc.
+static bool 
+sleb_sdtr_set_config(serial_channel *chan, cyg_serial_info_t *config)
+{
+    return sleb_sdtr_config_port(chan, config, false);
+}
+
+// Enable the transmitter on the device
+static void
+sleb_sdtr_start_xmit(serial_channel *chan)
+{
+    sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv;
+    sdtr_chan->xmit_enabled = true;
+    cyg_drv_interrupt_unmask(sdtr_chan->tx_int_num);
+}
+
+// Disable the transmitter on the device
+static void 
+sleb_sdtr_stop_xmit(serial_channel *chan)
+{
+    sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv;
+    cyg_drv_interrupt_mask(sdtr_chan->tx_int_num);
+    sdtr_chan->xmit_enabled = false;
+}
+
+// Serial I/O - low level interrupt handler (ISR)
+static cyg_uint32 
+sleb_sdtr_tx_ISR(cyg_vector_t vector, cyg_addrword_t data)
+{
+    serial_channel *chan = (serial_channel *)data;
+    sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv;
+    cyg_drv_interrupt_mask(sdtr_chan->tx_int_num);
+    cyg_drv_interrupt_acknowledge(sdtr_chan->tx_int_num);
+    return CYG_ISR_CALL_DSR;  // Cause DSR to be run
+}
+
+// Serial I/O - high level interrupt handler (DSR)
+static void       
+sleb_sdtr_tx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
+{
+    serial_channel *chan = (serial_channel *)data;
+    sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv;
+    (chan->callbacks->xmt_char)(chan);
+    if (sdtr_chan->xmit_enabled)
+        cyg_drv_interrupt_unmask(sdtr_chan->tx_int_num);
+}
+
+// Serial I/O - low level interrupt handler (ISR)
+static cyg_uint32 
+sleb_sdtr_rx_ISR(cyg_vector_t vector, cyg_addrword_t data)
+{
+    serial_channel *chan = (serial_channel *)data;
+    sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv;
+    cyg_drv_interrupt_mask(sdtr_chan->rx_int_num);
+    return CYG_ISR_CALL_DSR;  // Cause DSR to be run
+}
+
+// Serial I/O - high level interrupt handler (DSR)
+static void       
+sleb_sdtr_rx_DSR(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
+{
+    serial_channel *chan = (serial_channel *)data;
+    sleb_sdtr_info *sdtr_chan = (sleb_sdtr_info *)chan->dev_priv;
+    CYG_ADDRWORD port = sdtr_chan->base;
+    cyg_uint8 status, c;
+    HAL_SPARC_86940_READ(SDTR_STATUS(port), status);
+    if ((status & SDTR_STAT_RxRDY) != 0) {
+        HAL_SPARC_86940_READ(SDTR_RXDATA(port), c);
+        (chan->callbacks->rcv_char)(chan, c);
+    }
+    cyg_drv_interrupt_acknowledge(sdtr_chan->rx_int_num);
+    cyg_drv_interrupt_unmask(sdtr_chan->rx_int_num);
+}
+
+#endif //  CYGPKG_IO_SERIAL_SPARCLITE_SLEB