2008-12-04 Jukka Pietarinen <jukka.pietarinen@mrf.fi>

* ChangeLog, Makefile.am, README, acinclude.m4, configure.ac,
	shared/clock/ckinit.c, shared/clock/clock.h,
	shared/console/console.c, shared/console/uart.c,
	shared/console/uart.h, shared/start/start.S,
	shared/startup/bspstart.c, shared/startup/setvec.c,
	shared/timer/timer.c, shared/tsmac/dp83848phy.h,
	shared/tsmac/tsmac.c, shared/tsmac/tsmac.h: New files.

c/src/lib/libbsp/lm32/shared/clock/ckinit.c

@@ -0,0 +1,179 @@
+/*  ckinit.c
+ *
+ *  Clock device driver for Lattice Mico32 (lm32).
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ *
+ *  Jukka Pietarinen <jukka.pietarinen@mrf.fi>, 2008,
+ *  Micro-Research Finland Oy
+ */
+
+#include <stdlib.h>
+
+#include <rtems.h>
+#include <bsp.h>
+#include "../include/system_conf.h"
+#include "clock.h"
+
+static inline int clockread(unsigned int reg)
+{
+  return *((int*)(TIMER0_BASE_ADDRESS + reg));
+}
+
+static inline void clockwrite(unsigned int reg, int value)
+{
+  *((int*)(TIMER0_BASE_ADDRESS + reg)) = value;
+}
+
+void Clock_exit( void );
+rtems_isr Clock_isr( rtems_vector_number vector );
+extern lm32_isr_entry set_vector(rtems_isr_entry handler,
+                                 rtems_vector_number vector, int type);
+
+/*
+ *  The interrupt vector number associated with the clock tick device
+ *  driver.
+ */
+
+#define CLOCK_VECTOR    ( TIMER0_IRQ )
+#define CLOCK_IRQMASK   ( 1 << CLOCK_VECTOR )
+
+/*
+ *  Clock_driver_ticks is a monotonically increasing counter of the
+ *  number of clock ticks since the driver was initialized.
+ */
+
+volatile uint32_t         Clock_driver_ticks;
+
+/*
+ * These are set by clock driver during its init
+ */
+
+rtems_device_major_number rtems_clock_major = ~0;
+rtems_device_minor_number rtems_clock_minor;
+
+/*
+ *  The previous ISR on this clock tick interrupt vector.
+ */
+
+rtems_isr_entry  Old_ticker;
+
+void Clock_exit( void );
+
+/*
+ *  Isr Handler
+ */
+
+rtems_isr Clock_isr(
+  rtems_vector_number vector
+)
+{
+/*
+ * bump the number of clock driver ticks since initialization
+ *
+ * determine if it is time to announce the passing of tick as configured
+ * to RTEMS through the rtems_clock_tick directive
+ *
+ * perform any timer dependent tasks
+ */
+
+  /* Clear overflow flag */
+  clockwrite(LM32_CLOCK_SR, 0);
+  lm32_interrupt_ack(CLOCK_IRQMASK);
+
+  /* Increment clock ticks */
+  Clock_driver_ticks += 1;
+
+  rtems_clock_tick();
+}
+
+/*
+ *  Install_clock
+ *
+ *  Install a clock tick handler and reprograms the chip.  This
+ *  is used to initially establish the clock tick.
+ */
+
+void Install_clock(
+  rtems_isr_entry clock_isr
+)
+{
+  /*
+   *  Initialize the clock tick device driver variables
+   */
+  
+  Clock_driver_ticks = 0;
+  
+  Old_ticker = (rtems_isr_entry) set_vector( clock_isr, CLOCK_VECTOR, 1 );
+  /*
+   *  Hardware specific initialize goes here
+   */
+  
+  printk("rtems_configuration_get_microseconds_per_tick() %d\n", 
+	 rtems_configuration_get_microseconds_per_tick());
+  printk("PERIOD %d\n", 
+	 (CPU_FREQUENCY / (1000000 / rtems_configuration_get_microseconds_per_tick())));
+  
+  /* Set clock period */
+  clockwrite(LM32_CLOCK_PERIOD,
+	     (CPU_FREQUENCY /
+	      (1000000 / rtems_configuration_get_microseconds_per_tick())));
+  
+  /* Enable clock interrupts and start in continuous mode */
+  clockwrite(LM32_CLOCK_CR, LM32_CLOCK_CR_ITO | 
+	     LM32_CLOCK_CR_CONT | 
+	     LM32_CLOCK_CR_START);
+  
+  lm32_interrupt_unmask(CLOCK_IRQMASK);
+  
+  /*
+   *  Schedule the clock cleanup routine to execute if the application exits.
+   */
+  
+  atexit( Clock_exit );      
+}
+
+/*
+ *  Clean up before the application exits
+ */
+
+void Clock_exit( void )
+{
+  /* Disable clock interrupts and stop */
+
+  lm32_interrupt_unmask(CLOCK_IRQMASK);
+  clockwrite(LM32_CLOCK_CR, LM32_CLOCK_CR_STOP);
+}
+
+/*
+ *  Clock_initialize
+ *
+ *  Device driver entry point for clock tick driver initialization.
+ */
+
+rtems_device_driver Clock_initialize(
+  rtems_device_major_number major,
+  rtems_device_minor_number minor,
+  void *pargp
+)
+{
+  printk("Clock initialize %d %d\n", major, minor);
+
+  Install_clock( Clock_isr );
+
+  /*
+   * make major/minor avail to others such as shared memory driver
+   */
+
+  rtems_clock_major = major;
+  rtems_clock_minor = minor;
+
+  return RTEMS_SUCCESSFUL;
+}