Prepare for 0.3.0 release

* Add support for Purple Board (MIPS64 5Kc)

* Add support for MIPS64 5Kc CPUs

common/cmd_boot.c

@@ -1000,14 +1000,14 @@ static int k_recv (void)
 		for (;;) {
 			switch (serial_getc ()) {
 			case START_CHAR:	/* start packet */
-				break;
+				goto START;
 			case ETX_CHAR:		/* ^C waiting for packet */
 				return (0);
 			default:
 				;
 			}
 		}
-			
+START:
 		/* get length of packet */
 		sum = 0;
 		new_char = serial_getc ();

common/soft_i2c.c

@@ -83,8 +83,12 @@ static void send_reset(void)
 #endif
 	int j;
 
-	I2C_ACTIVE;
+	I2C_SCL(1);
 	I2C_SDA(1);
+#ifdef	I2C_INIT
+	I2C_INIT;
+#endif
+	I2C_TRISTATE;
 	for(j = 0; j < 9; j++) {
 		I2C_SCL(0);
 		I2C_DELAY;
@@ -262,13 +266,6 @@ static uchar read_byte(int ack)
  */
 void i2c_init (int speed, int slaveaddr)
 {
-#ifdef	CONFIG_8xx
-	volatile immap_t *immr = (immap_t *)CFG_IMMR;
-#endif
-
-#ifdef	I2C_INIT
-	I2C_INIT;
-#endif
 	/*
          * WARNING: Do NOT save speed in a static variable: if the
          * I2C routines are called before RAM is initialized (to read