lib: Add Atmel SAM3x8e ARM CMSIS files

Add the ARM CMSIS definitions (obtained from an Arduino copy of
libsam) in preparation for Arduino Due support.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

1 files changed, 295 insertions, 0 deletions

diff --git a/lib/cmsis-sam3x8e/source/gcc/startup_sam3xa.c b/lib/cmsis-sam3x8e/source/gcc/startup_sam3xa.c
new file mode 100644
index 00000000..1f61b079
--- /dev/null
+++ b/lib/cmsis-sam3x8e/source/gcc/startup_sam3xa.c
@@ -0,0 +1,295 @@
+/* ----------------------------------------------------------------------------
+ *         SAM Software Package License
+ * ----------------------------------------------------------------------------
+ * Copyright (c) 2012, Atmel Corporation
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following condition is 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.
+ * ----------------------------------------------------------------------------
+ */
+
+#include "sam3xa.h"
+
+/* Initialize segments */
+extern uint32_t _sfixed;
+extern uint32_t _efixed;
+extern uint32_t _etext;
+extern uint32_t _srelocate;
+extern uint32_t _erelocate;
+extern uint32_t _szero;
+extern uint32_t _ezero;
+extern uint32_t _sstack;
+extern uint32_t _estack;
+
+/** \cond DOXYGEN_SHOULD_SKIP_THIS */
+int main(void);
+/** \endcond */
+
+// Arduino: we must setup hardware before doing this
+// void __libc_init_array(void);
+
+/* Default empty handler */
+void Dummy_Handler(void);
+
+/* Cortex-M3 core handlers */
+void NMI_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void HardFault_Handler  ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void MemManage_Handler  ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void BusFault_Handler   ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void UsageFault_Handler ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void SVC_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void DebugMon_Handler   ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void PendSV_Handler     ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void SysTick_Handler    ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+
+/* Peripherals handlers */
+void SUPC_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void RSTC_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void RTC_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void RTT_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void WDT_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void PMC_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void EFC0_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void EFC1_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void UART_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#ifdef _SAM3XA_SMC_INSTANCE_
+void SMC_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#endif /* _SAM3XA_SMC_INSTANCE_ */
+#ifdef _SAM3XA_SDRAMC_INSTANCE_
+void SDRAMC_Handler     ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#endif /* _SAM3XA_SDRAMC_INSTANCE_ */
+void PIOA_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void PIOB_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#ifdef _SAM3XA_PIOC_INSTANCE_
+void PIOC_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#endif /* _SAM3XA_PIOC_INSTANCE_ */
+#ifdef _SAM3XA_PIOD_INSTANCE_
+void PIOD_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#endif /* _SAM3XA_PIOD_INSTANCE_ */
+#ifdef _SAM3XA_PIOE_INSTANCE_
+void PIOE_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#endif /* _SAM3XA_PIOE_INSTANCE_ */
+#ifdef _SAM3XA_PIOF_INSTANCE_
+void PIOF_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#endif /* _SAM3XA_PIOF_INSTANCE_ */
+void USART0_Handler     ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void USART1_Handler     ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void USART2_Handler     ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#ifdef _SAM3XA_USART3_INSTANCE_
+void USART3_Handler     ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#endif /* _SAM3XA_USART3_INSTANCE_ */
+void HSMCI_Handler      ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TWI0_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TWI1_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void SPI0_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#ifdef _SAM3XA_SPI1_INSTANCE_
+void SPI1_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#endif /* _SAM3XA_SPI1_INSTANCE_ */
+void SSC_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TC0_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TC1_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TC2_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TC3_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TC4_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TC5_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#ifdef _SAM3XA_TC2_INSTANCE_
+void TC6_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TC7_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TC8_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#endif /* _SAM3XA_TC2_INSTANCE_ */
+void PWM_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void ADC_Handler        ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void DACC_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void DMAC_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void UOTGHS_Handler     ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void TRNG_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#ifdef _SAM3XA_EMAC_INSTANCE_
+void EMAC_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+#endif /* _SAM3XA_EMAC_INSTANCE_ */
+void CAN0_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+void CAN1_Handler       ( void ) __attribute__ ((weak, alias("Dummy_Handler")));
+
+/* Exception Table */
+__attribute__ ((section(".vectors"))) __attribute__((externally_visible))
+const DeviceVectors exception_table = {
+
+	/* Configure Initial Stack Pointer, using linker-generated symbols */
+	(void*) (&_estack),
+	(void*) Reset_Handler,
+
+	(void*) NMI_Handler,
+	(void*) HardFault_Handler,
+	(void*) MemManage_Handler,
+	(void*) BusFault_Handler,
+	(void*) UsageFault_Handler,
+	(void*) (0UL),           /* Reserved */
+	(void*) (0UL),           /* Reserved */
+	(void*) (0UL),           /* Reserved */
+	(void*) (0UL),           /* Reserved */
+	(void*) SVC_Handler,
+	(void*) DebugMon_Handler,
+	(void*) (0UL),           /* Reserved */
+	(void*) PendSV_Handler,
+	(void*) SysTick_Handler,
+
+	/* Configurable interrupts */
+	(void*) SUPC_Handler,    /*  0  Supply Controller */
+	(void*) RSTC_Handler,    /*  1  Reset Controller */
+	(void*) RTC_Handler,     /*  2  Real Time Clock */
+	(void*) RTT_Handler,     /*  3  Real Time Timer */
+	(void*) WDT_Handler,     /*  4  Watchdog Timer */
+	(void*) PMC_Handler,     /*  5  PMC */
+	(void*) EFC0_Handler,    /*  6  EFC 0 */
+	(void*) EFC1_Handler,    /*  7  EFC 1 */
+	(void*) UART_Handler,    /*  8  UART */
+#ifdef _SAM3XA_SMC_INSTANCE_
+	(void*) SMC_Handler,     /*  9  SMC */
+#else
+	(void*) (0UL),           /*  9 Reserved */
+#endif /* _SAM3XA_SMC_INSTANCE_ */
+#ifdef _SAM3XA_SDRAMC_INSTANCE_
+	(void*) SDRAMC_Handler,  /* 10  SDRAMC */
+#else
+	(void*) (0UL),           /* 10 Reserved */
+#endif /* _SAM3XA_SDRAMC_INSTANCE_ */
+	(void*) PIOA_Handler,    /* 11 Parallel IO Controller A */
+	(void*) PIOB_Handler,    /* 12 Parallel IO Controller B */
+#ifdef _SAM3XA_PIOC_INSTANCE_
+	(void*) PIOC_Handler,    /* 13 Parallel IO Controller C */
+#else
+	(void*) (0UL),           /* 13 Reserved */
+#endif /* _SAM3XA_PIOC_INSTANCE_ */
+#ifdef _SAM3XA_PIOD_INSTANCE_
+	(void*) PIOD_Handler,    /* 14 Parallel IO Controller D */
+#else
+	(void*) (0UL),           /* 14 Reserved */
+#endif /* _SAM3XA_PIOD_INSTANCE_ */
+#ifdef _SAM3XA_PIOE_INSTANCE_
+	(void*) PIOE_Handler,    /* 15 Parallel IO Controller E */
+#else
+	(void*) (0UL),           /* 15 Reserved */
+#endif /* _SAM3XA_PIOE_INSTANCE_ */
+#ifdef _SAM3XA_PIOF_INSTANCE_
+	(void*) PIOF_Handler,    /* 16 Parallel IO Controller F */
+#else
+	(void*) (0UL),           /* 16 Reserved */
+#endif /* _SAM3XA_PIOF_INSTANCE_ */
+	(void*) USART0_Handler,  /* 17 USART 0 */
+	(void*) USART1_Handler,  /* 18 USART 1 */
+	(void*) USART2_Handler,  /* 19 USART 2 */
+#ifdef _SAM3XA_USART3_INSTANCE_
+	(void*) USART3_Handler,  /* 20 USART 3 */
+#else
+	(void*) (0UL),           /* 20 Reserved */
+#endif /* _SAM3XA_USART3_INSTANCE_ */
+	(void*) HSMCI_Handler,   /* 21 MCI */
+	(void*) TWI0_Handler,    /* 22 TWI 0 */
+	(void*) TWI1_Handler,    /* 23 TWI 1 */
+	(void*) SPI0_Handler,    /* 24 SPI 0 */
+#ifdef _SAM3XA_SPI1_INSTANCE_
+	(void*) SPI1_Handler,    /* 25 SPI 1 */
+#else
+	(void*) (0UL),           /* 25 Reserved */
+#endif /* _SAM3XA_SPI1_INSTANCE_ */
+	(void*) SSC_Handler,     /* 26 SSC */
+	(void*) TC0_Handler,     /* 27 Timer Counter 0 */
+	(void*) TC1_Handler,     /* 28 Timer Counter 1 */
+	(void*) TC2_Handler,     /* 29 Timer Counter 2 */
+	(void*) TC3_Handler,     /* 30 Timer Counter 3 */
+	(void*) TC4_Handler,     /* 31 Timer Counter 4 */
+	(void*) TC5_Handler,     /* 32 Timer Counter 5 */
+#ifdef _SAM3XA_TC2_INSTANCE_
+	(void*) TC6_Handler,     /* 33 Timer Counter 6 */
+	(void*) TC7_Handler,     /* 34 Timer Counter 7 */
+	(void*) TC8_Handler,     /* 35 Timer Counter 8 */
+#else
+	(void*) (0UL),           /* 33 Reserved */
+	(void*) (0UL),           /* 34 Reserved */
+	(void*) (0UL),           /* 35 Reserved */
+#endif /* _SAM3XA_TC2_INSTANCE_ */
+	(void*) PWM_Handler,     /* 36 PWM */
+	(void*) ADC_Handler,     /* 37 ADC controller */
+	(void*) DACC_Handler,    /* 38 DAC controller */
+	(void*) DMAC_Handler,    /* 39 DMA Controller */
+	(void*) UOTGHS_Handler,  /* 40 USB OTG High Speed */
+	(void*) TRNG_Handler,    /* 41 True Random Number Generator */
+#ifdef _SAM3XA_EMAC_INSTANCE_
+	(void*) EMAC_Handler,    /* 42 Ethernet MAC */
+#else
+	(void*) (0UL),           /* 42 Reserved */
+#endif /* _SAM3XA_EMAC_INSTANCE_ */
+	(void*) CAN0_Handler,    /* 43 CAN Controller 0 */
+	(void*) CAN1_Handler    /* 44 CAN Controller 1 */
+};
+
+/**
+ * \brief This is the code that gets called on processor reset.
+ * To initialize the device, and call the main() routine.
+ */
+void Reset_Handler(void)
+{
+	uint32_t *pSrc, *pDest;
+
+	/* Initialize the relocate segment */
+	pSrc = &_etext;
+	pDest = &_srelocate;
+
+	if (pSrc != pDest) {
+		for (; pDest < &_erelocate;) {
+			*pDest++ = *pSrc++;
+		}
+	}
+
+	/* Clear the zero segment */
+	for (pDest = &_szero; pDest < &_ezero;) {
+		*pDest++ = 0;
+	}
+
+	/* Set the vector table base address */
+	pSrc = (uint32_t *) & _sfixed;
+	SCB->VTOR = ((uint32_t) pSrc & SCB_VTOR_TBLOFF_Msk);
+
+	if (((uint32_t) pSrc >= IRAM0_ADDR) && ((uint32_t) pSrc < NFC_RAM_ADDR)) {
+		SCB->VTOR |= (1UL) << SCB_VTOR_TBLBASE_Pos;
+	}
+
+	/* Initialize the C library */
+
+	// Arduino: we must setup hardware before doing this
+	//__libc_init_array();
+
+	/* Branch to main function */
+	main();
+
+	/* Infinite loop */
+	while (1);
+}
+
+/**
+ * \brief Default interrupt handler for unused IRQs.
+ */
+void Dummy_Handler(void)
+{
+	while (1) {
+	}
+}
+