New platform: TI cc2530 Development Kit

This commits adds support for TI's SmartRF05 Eval. Board with cc2530 EMs
Some initial support for cc2531 USB dongles

cpu/cc253x/dev/uart0.c

@@ -0,0 +1,75 @@
+/**
+ * \file
+ *
+ *   uart0 write routines
+ *
+ * \author
+ *
+ *   Anthony "Asterisk" Ambuehl
+ *
+ */
+#include <stdlib.h>
+#include <string.h>
+
+#include "cc253x.h"
+#include "sfr-bits.h"
+#include "dev/uart0.h"
+
+#if UART0_ENABLE
+/*---------------------------------------------------------------------------*/
+void
+uart0_init()
+{
+#if UART0_CONF_HIGH_SPEED
+  UART_SET_SPEED(0, UART_460_M, UART_460_E);
+#else
+  UART_SET_SPEED(0, UART_115_M, UART_115_E);
+#endif
+
+#ifdef UART0_ALTERNATIVE_2
+  PERCFG |= PERCFG_U0CFG;  / *alternative port 2 = P1.5-2 */
+#ifdef UART0_RTSCTS
+  P1SEL |= 0x3C;    /* peripheral select for TX and RX, RTS, CTS */
+#else
+  P1SEL |= 0x30;    /* peripheral select for TX and RX */
+  P1 &= ~0x08;      /* RTS down */
+#endif
+  P1DIR |= 0x28;    /* RTS, TX out */
+  P1DIR &= ~0x14;   /* CTS & RX in */
+#else
+  PERCFG &= ~PERCFG_U0CFG; /* alternative port 1 = P0.5-2 */
+#ifdef UART0_RTSCTS
+  P0SEL |= 0x20 | 0x10;    /* peripheral select for TX and RX */
+#else
+  P0SEL |= 0x0C;    /* peripheral select for TX and RX */
+  P0 &= ~0x20;    /* RTS down */
+#endif
+  P0DIR |= 0x28;    /* RTS, TX out */
+  P0DIR &= ~0x14;   /* CTS, RX in */
+#endif
+
+
+#ifdef UART0_RTSCTS
+  U0UCR = 0x42; /*defaults: 8N1, RTS/CTS, high stop bit*/
+#else
+  U0UCR = 0x02; /*defaults: 8N1, no flow control, high stop bit*/
+#endif
+
+  U0CSR = UCSR_MODE; /* UART mode */
+  U0UCR = 0x80; /* Flush */
+  UART0_RX_EN();
+
+  UART0_RX_INT(1);
+  U0DBUF = 0;
+}
+/*---------------------------------------------------------------------------*/
+/* Write one byte over the UART. */
+void
+uart0_writeb(uint8_t byte)
+{
+  UTX0IF = 0;
+  U0DBUF = byte;
+  while(!UTX0IF); /* Wait until byte has been transmitted. */
+  UTX0IF = 0;
+}
+#endif