diff options
Diffstat (limited to 'boards/osmo-sdr/board_cstartup_gnu.c')
| -rw-r--r-- | boards/osmo-sdr/board_cstartup_gnu.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/boards/osmo-sdr/board_cstartup_gnu.c b/boards/osmo-sdr/board_cstartup_gnu.c new file mode 100644 index 0000000..66a433b --- /dev/null +++ b/boards/osmo-sdr/board_cstartup_gnu.c @@ -0,0 +1,167 @@ +/* ----------------------------------------------------------------------------
+ * ATMEL Microcontroller Software Support
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2008, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the disclaimer below.
+ *
+ * Atmel's name may not be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * DISCLAIMER: THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
+ * DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
+ * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ----------------------------------------------------------------------------
+ */
+
+//------------------------------------------------------------------------------
+// Headers
+//------------------------------------------------------------------------------
+#include "board.h"
+#include "exceptions.h"
+#include "board_lowlevel.h"
+
+//------------------------------------------------------------------------------
+// External Variables
+//------------------------------------------------------------------------------
+
+// Stack top
+extern unsigned int _estack;
+
+// Vector start address
+extern unsigned int _vect_start;
+
+// Initialize segments
+extern unsigned int _sfixed;
+extern unsigned int _sfixed;
+extern unsigned int _efixed;
+extern unsigned int _srelocate;
+extern unsigned int _erelocate;
+extern unsigned int _szero;
+extern unsigned int _ezero;
+#if defined(psram)
+extern unsigned int _svectorrelocate;
+extern unsigned int _evectorrelocate;
+#endif
+
+//------------------------------------------------------------------------------
+// ProtoTypes
+//------------------------------------------------------------------------------
+
+extern int main(void);
+void ResetException(void);
+
+//------------------------------------------------------------------------------
+// Exception Table
+//------------------------------------------------------------------------------
+
+__attribute__((section(".vectors")))
+IntFunc exception_table[] = {
+
+ // Configure Initial Stack Pointer, using linker-generated symbols
+ (IntFunc)&_estack,
+ ResetException,
+
+ NMI_Handler,
+ HardFault_Handler,
+ MemManage_Handler,
+ BusFault_Handler,
+ UsageFault_Handler,
+ 0, 0, 0, 0, // Reserved
+ SVC_Handler,
+ DebugMon_Handler,
+ 0, // Reserved
+ PendSV_Handler,
+ SysTick_Handler,
+
+ // Configurable interrupts
+ SUPC_IrqHandler, // 0 SUPPLY CONTROLLER
+ RSTC_IrqHandler, // 1 RESET CONTROLLER
+ RTC_IrqHandler, // 2 REAL TIME CLOCK
+ RTT_IrqHandler, // 3 REAL TIME TIMER
+ WDT_IrqHandler, // 4 WATCHDOG TIMER
+ PMC_IrqHandler, // 5 PMC
+ EFC0_IrqHandler, // 6 EFC0
+ EFC1_IrqHandler, // 7 EFC1
+ DBGU_IrqHandler, // 8 DBGU
+ HSMC4_IrqHandler, // 9 HSMC4
+ PIOA_IrqHandler, // 10 Parallel IO Controller A
+ PIOB_IrqHandler, // 11 Parallel IO Controller B
+ PIOC_IrqHandler, // 12 Parallel IO Controller C
+ USART0_IrqHandler, // 13 USART 0
+ USART1_IrqHandler, // 14 USART 1
+ USART2_IrqHandler, // 15 USART 2
+ USART3_IrqHandler, // 16 USART 3
+ MCI0_IrqHandler, // 17 Multimedia Card Interface
+ TWI0_IrqHandler, // 18 TWI 0
+ TWI1_IrqHandler, // 19 TWI 1
+ SPI0_IrqHandler, // 20 Serial Peripheral Interface
+ SSC0_IrqHandler, // 21 Serial Synchronous Controller 0
+ TC0_IrqHandler, // 22 Timer Counter 0
+ TC1_IrqHandler, // 23 Timer Counter 1
+ TC2_IrqHandler, // 24 Timer Counter 2
+ PWM_IrqHandler, // 25 Pulse Width Modulation Controller
+ ADCC0_IrqHandler, // 26 ADC controller0
+ ADCC1_IrqHandler, // 27 ADC controller1
+ HDMA_IrqHandler, // 28 HDMA
+ USBD_IrqHandler, // 29 USB Device High Speed UDP_HS
+ IrqHandlerNotUsed // 30 not used
+};
+
+
+//------------------------------------------------------------------------------
+/// This is the code that gets called on processor reset. To initialize the
+/// device. And call the main() routine.
+//------------------------------------------------------------------------------
+void ResetException(void)
+{
+ unsigned int *pSrc, *pDest;
+
+ LowLevelInit();
+#if defined(psram)
+ pDest = &_vect_start;
+ pSrc = &_svectorrelocate;
+ for(; pSrc < &_evectorrelocate;) {
+ *pDest++ = *pSrc++;
+ }
+#endif
+
+ // Initialize data
+ pSrc = &_efixed;
+ pDest = &_srelocate;
+ if (pSrc != pDest) {
+ for(; pDest < &_erelocate;) {
+
+ *pDest++ = *pSrc++;
+ }
+ }
+
+ // Zero fill bss
+ for(pDest = &_szero; pDest < &_ezero;) {
+
+ *pDest++ = 0;
+ }
+
+#if defined(psram)
+ pSrc = (unsigned int *)&_vect_start;
+#else
+ pSrc = (unsigned int *)&_sfixed;
+#endif
+
+ AT91C_BASE_NVIC->NVIC_VTOFFR = ((unsigned int)(pSrc)) | (0x0 << 7);
+
+ main();
+}
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