new file mode 100644
--- /dev/null
+++ b/packages/hal/calmrisc32/ceb/current/src/ser.c
@@ -0,0 +1,293 @@
+//=============================================================================
+//
+//      ser.c
+//
+//      Simple driver for the MDSChip serial port
+//
+//=============================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+//
+// eCos is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 or (at your option) any later version.
+//
+// eCos is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or
+// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+// for more details.
+//
+// You should have received a copy of the GNU General Public License along
+// with eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//=============================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):   msalter
+// Contributors:msalter
+// Date:        2001-02-12
+// Description: Simple driver for the MDSChip serial port
+//
+//####DESCRIPTIONEND####
+//
+//=============================================================================
+
+#include <pkgconf/hal.h>
+#include <pkgconf/system.h>
+#include CYGBLD_HAL_PLATFORM_H
+
+#include <cyg/hal/hal_arch.h>           // SAVE/RESTORE GP macros
+#include <cyg/hal/hal_io.h>             // IO macros
+#include <cyg/hal/hal_if.h>             // interface API
+#include <cyg/hal/hal_intr.h>           // HAL_ENABLE/MASK/UNMASK_INTERRUPTS
+#include <cyg/hal/hal_misc.h>           // Helper functions
+#include <cyg/hal/drv_api.h>            // CYG_ISR_HANDLED
+
+// We have no control over baud rate
+#if CYGNUM_HAL_VIRTUAL_VECTOR_CONSOLE_CHANNEL_BAUD==57600
+#define CYG_DEV_SERIAL_BAUD_DIVISOR    BAUD_57600
+#endif
+
+#ifndef CYG_DEV_SERIAL_BAUD_DIVISOR
+#error Missing/incorrect serial baud rate defined - CDL error?
+#endif
+
+//-----------------------------------------------------------------------------
+typedef struct {
+    cyg_uint8* base;
+    cyg_int32 msec_timeout;
+    int isr_vector;
+} channel_data_t;
+
+static const channel_data_t channels[1] = {
+    { (cyg_uint8*)0, 1000, 0}
+};
+
+//-----------------------------------------------------------------------------
+// The minimal init, get and put functions. All by polling.
+
+void
+cyg_hal_plf_serial_init_channel(void* __ch_data)
+{
+    cyg_hal_plf_write_sr_rbr(0);
+    cyg_hal_plf_write_sr_tbr(0);
+    cyg_hal_plf_write_tbr(0);
+    cyg_hal_plf_write_rbr(0);
+}
+
+void
+cyg_hal_plf_serial_putc(void* __ch_data, cyg_uint8 __ch)
+{
+    // wait for tx rdy
+    while (cyg_hal_plf_read_sr_tbr() != 0) ;
+
+    // Now, write it
+    cyg_hal_plf_write_tbr(__ch);
+
+    // and set TBR
+    cyg_hal_plf_write_sr_tbr(1);
+}
+
+static cyg_bool
+cyg_hal_plf_serial_getc_nonblock(void* __ch_data, cyg_uint8* ch)
+{
+    if (cyg_hal_plf_read_sr_rbr() == 0)
+	return false;
+
+    *ch = cyg_hal_plf_read_rbr();
+
+    cyg_hal_plf_write_sr_rbr(0);
+
+    return true;
+}
+
+cyg_uint8
+cyg_hal_plf_serial_getc(void* __ch_data)
+{
+    cyg_uint8 ch;
+
+    while(!cyg_hal_plf_serial_getc_nonblock(__ch_data, &ch));
+
+    return ch;
+}
+
+static void
+cyg_hal_plf_serial_write(void* __ch_data, const cyg_uint8* __buf, 
+                         cyg_uint32 __len)
+{
+    while(__len-- > 0)
+        cyg_hal_plf_serial_putc(__ch_data, *__buf++);
+}
+
+static void
+cyg_hal_plf_serial_read(void* __ch_data, cyg_uint8* __buf, cyg_uint32 __len)
+{
+    while(__len-- > 0)
+        *__buf++ = cyg_hal_plf_serial_getc(__ch_data);
+}
+
+
+cyg_bool
+cyg_hal_plf_serial_getc_timeout(void* __ch_data, cyg_uint8* ch)
+{
+    int delay_count;
+    channel_data_t* chan;
+    cyg_bool res;
+
+    // Some of the diagnostic print code calls through here with no idea what the ch_data is.
+    // Go ahead and assume it is channels[0].
+    if (__ch_data == 0)
+      __ch_data = (void*)&channels[0];
+
+    chan = (channel_data_t*)__ch_data;
+
+    delay_count = chan->msec_timeout * 10; // delay in .1 ms steps
+
+    for(;;) {
+        res = cyg_hal_plf_serial_getc_nonblock(__ch_data, ch);
+        if (res || 0 == delay_count--)
+            break;
+        CYGACC_CALL_IF_DELAY_US(100);
+    }
+
+    return res;
+}
+
+static int
+cyg_hal_plf_serial_control(void *__ch_data, __comm_control_cmd_t __func, ...)
+{
+    static int irq_state = 0;
+    channel_data_t* chan;
+    int ret = 0;
+
+    // Some of the diagnostic print code calls through here with no idea what the ch_data is.
+    // Go ahead and assume it is channels[0].
+    if (__ch_data == 0)
+      __ch_data = (void*)&channels[0];
+
+    chan = (channel_data_t*)__ch_data;
+
+    switch (__func) {
+    case __COMMCTL_IRQ_ENABLE:
+        irq_state = 1;
+
+        HAL_INTERRUPT_SET_LEVEL(chan->isr_vector, 1);
+        HAL_INTERRUPT_UNMASK(chan->isr_vector);
+        break;
+    case __COMMCTL_IRQ_DISABLE:
+        ret = irq_state;
+        irq_state = 0;
+
+        HAL_INTERRUPT_MASK(chan->isr_vector);
+        break;
+    case __COMMCTL_DBG_ISR_VECTOR:
+        ret = chan->isr_vector;
+        break;
+    case __COMMCTL_SET_TIMEOUT:
+    {
+        va_list ap;
+
+        va_start(ap, __func);
+
+        ret = chan->msec_timeout;
+        chan->msec_timeout = va_arg(ap, cyg_uint32);
+
+        va_end(ap);
+    }        
+    break;
+    case __COMMCTL_SETBAUD:
+    {
+	cyg_uint32 baud_rate;
+        va_list ap;
+
+        va_start(ap, __func);
+        baud_rate = va_arg(ap, cyg_uint32);
+        va_end(ap);
+
+        switch (baud_rate)
+        {
+        case 57600:  break;
+        default:     return -1;
+        }
+    }
+    break;
+
+    case __COMMCTL_GETBAUD:
+        break;
+    default:
+        break;
+    }
+    return ret;
+}
+
+static int
+cyg_hal_plf_serial_isr(void *__ch_data, int* __ctrlc, 
+                       CYG_ADDRWORD __vector, CYG_ADDRWORD __data)
+{
+    *__ctrlc = 0;
+    return 0;
+}
+
+static void
+cyg_hal_plf_serial_init(void)
+{
+    hal_virtual_comm_table_t* comm;
+    int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
+
+    // Disable interrupts.
+    HAL_INTERRUPT_MASK(channels[0].isr_vector);
+
+    // Init channels
+    cyg_hal_plf_serial_init_channel((void*)&channels[0]);
+    
+    // Setup procs in the vector table
+
+    // Set channel 0
+    CYGACC_CALL_IF_SET_CONSOLE_COMM(0);
+    comm = CYGACC_CALL_IF_CONSOLE_PROCS();
+    CYGACC_COMM_IF_CH_DATA_SET(*comm, &channels[0]);
+    CYGACC_COMM_IF_WRITE_SET(*comm, cyg_hal_plf_serial_write);
+    CYGACC_COMM_IF_READ_SET(*comm, cyg_hal_plf_serial_read);
+    CYGACC_COMM_IF_PUTC_SET(*comm, cyg_hal_plf_serial_putc);
+    CYGACC_COMM_IF_GETC_SET(*comm, cyg_hal_plf_serial_getc);
+    CYGACC_COMM_IF_CONTROL_SET(*comm, cyg_hal_plf_serial_control);
+    CYGACC_COMM_IF_DBG_ISR_SET(*comm, cyg_hal_plf_serial_isr);
+    CYGACC_COMM_IF_GETC_TIMEOUT_SET(*comm, cyg_hal_plf_serial_getc_timeout);
+
+    // Restore original console
+    CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
+}
+
+void
+cyg_hal_plf_comms_init(void)
+{
+    static int initialized = 0;
+
+    if (initialized)
+        return;
+
+    initialized = 1;
+
+    cyg_hal_plf_serial_init();
+}
+
+//-----------------------------------------------------------------------------
+// end of ser16c550c.c
+