add support for Microchip SmartFusion2 family FPGA

board/Microchip_M2S010/BSP/Src/mcu_init.c

@@ -0,0 +1,38 @@
+#include "mcu_init.h"
+
+mss_uart_instance_t * const gp_my_uart = &g_mss_uart0;
+
+void board_init(void)
+{
+    /* disable watchdog */
+    SYSREG->WDOG_CR = 0;
+    
+    /* update system core clock */
+    SystemCoreClockUpdate();
+
+    /* mss gpio config */
+    MSS_GPIO_init();
+    MSS_GPIO_config(MSS_GPIO_0, MSS_GPIO_OUTPUT_MODE);
+    MSS_GPIO_config(MSS_GPIO_1, MSS_GPIO_OUTPUT_MODE);
+    
+    /* set gpio output */
+    MSS_GPIO_set_output(MSS_GPIO_0, 1);
+    MSS_GPIO_set_output(MSS_GPIO_1, 0);
+    
+    /* mss uart initial: 115200, 8, no, 1 */
+    MSS_UART_init(gp_my_uart,
+              MSS_UART_115200_BAUD,
+              MSS_UART_DATA_8_BITS | MSS_UART_NO_PARITY | MSS_UART_ONE_STOP_BIT);
+    
+    printf("SystemCoreClock Frequency: %.2f MHz\r\n", SystemCoreClock/1000000.0);
+}
+
+void SysTick_Handler(void)
+{
+    if (tos_knl_is_running())
+    {
+        tos_knl_irq_enter();
+        tos_tick_handler();
+        tos_knl_irq_leave();
+    }
+}