1 files changed, 0 insertions, 240 deletions
diff --git a/nuttx/arch/arm/src/stm32/stm32_start.c b/nuttx/arch/arm/src/stm32/stm32_start.c
deleted file mode 100644
index d341121f1..000000000
--- a/nuttx/arch/arm/src/stm32/stm32_start.c
+++ /dev/null
@@ -1,240 +0,0 @@
-/****************************************************************************
- * arch/arm/src/stm32/stm32_start.c
- * arch/arm/src/chip/stm32_start.c
- *
- *   Copyright (C) 2009, 2011-2012 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS 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 <nuttx/config.h>
-
-#include <stdint.h>
-#include <assert.h>
-#include <debug.h>
-
-#include <nuttx/init.h>
-#include <arch/board/board.h>
-
-#include "up_arch.h"
-#include "up_internal.h"
-
-#include "stm32_internal.h"
-#include "stm32_gpio.h"
-
-#ifdef CONFIG_ARCH_FPU
-#  include "nvic.h"
-#endif
-
-/****************************************************************************
- * Name: showprogress
- *
- * Description:
- *   Print a character on the UART to show boot status.
- *
- ****************************************************************************/
-
-#ifdef CONFIG_DEBUG
-#  define showprogress(c) up_lowputc(c)
-#else
-#  define showprogress(c)
-#endif
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/* we need to get r10 set before we can allow instrumentation calls */
-
-void __start(void) __attribute__ ((no_instrument_function));
-
-/****************************************************************************
- * Name: stm32_fpuconfig
- *
- * Description:
- *   Configure the FPU.  Relative bit settings:
- *
- *     CPACR:  Enables access to CP10 and CP11
- *     CONTROL.FPCA: Determines whether the FP extension is active in the
- *       current context:
- *     FPCCR.ASPEN:  Enables automatic FP state preservation, then the
- *       processor sets this bit to 1 on successful completion of any FP
- *       instruction.
- *     FPCCR.LSPEN:  Enables lazy context save of FP state. When this is
- *       done, the processor reserves space on the stack for the FP state,
- *       but does not save that state information to the stack.
- *
- *  Software must not change the value of the ASPEN bit or LSPEN bit while either:
- *   - the CPACR permits access to CP10 and CP11, that give access to the FP
- *     extension, or
- *   - the CONTROL.FPCA bit is set to 1
- *
- ****************************************************************************/
-
-#ifdef CONFIG_ARCH_FPU
-#ifdef CONFIG_ARMV7M_CMNVECTOR
-
-static inline void stm32_fpuconfig(void)
-{
-  uint32_t regval;
-
-  /* Set CONTROL.FPCA so that we always get the extended context frame
-   * with the volatile FP registers stacked above the basic context.
-   */
-
-  regval = getcontrol(); 
-  regval |= (1 << 2);
-  setcontrol(regval);
-
-  /* Ensure that FPCCR.LSPEN is disabled, so that we don't have to contend
-   * with the lazy FP context save behaviour.  Clear FPCCR.ASPEN since we
-   * are going to turn on CONTROL.FPCA for all contexts.
-   */
-
-  regval = getreg32(NVIC_FPCCR);
-  regval &= ~((1 << 31) | (1 << 30));
-  putreg32(regval, NVIC_FPCCR);
-
-  /* Enable full access to CP10 and CP11 */
-
-  regval = getreg32(NVIC_CPACR);
-  regval |= ((3 << (2*10)) | (3 << (2*11)));
-  putreg32(regval, NVIC_CPACR);
-}
-
-#else
-
-static inline void stm32_fpuconfig(void)
-{
-  uint32_t regval;
-
-  /* Clear CONTROL.FPCA so that we do not get the extended context frame
-   * with the volatile FP registers stacked in the saved context.
-   */
-
-  regval = getcontrol(); 
-  regval &= ~(1 << 2);
-  setcontrol(regval);
-
-  /* Ensure that FPCCR.LSPEN is disabled, so that we don't have to contend
-   * with the lazy FP context save behaviour.  Clear FPCCR.ASPEN since we
-   * are going to keep CONTROL.FPCA off for all contexts.
-   */
-
-  regval = getreg32(NVIC_FPCCR);
-  regval &= ~((1 << 31) | (1 << 30));
-  putreg32(regval, NVIC_FPCCR);
-
-  /* Enable full access to CP10 and CP11 */
-
-  regval = getreg32(NVIC_CPACR);
-  regval |= ((3 << (2*10)) | (3 << (2*11)));
-  putreg32(regval, NVIC_CPACR);
-}
-
-#endif
-
-#else
-#  define stm32_fpuconfig()
-#endif
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: _start
- *
- * Description:
- *   This is the reset entry point.
- *
- ****************************************************************************/
-
-void __start(void)
-{
-  const uint32_t *src;
-  uint32_t *dest;
-
-  /* Set the stack limit before we attempt to call any functions */
-
-  __asm__ volatile ("sub r10, sp, %0" : : "r" (CONFIG_IDLETHREAD_STACKSIZE - 64) : );
-
-  /* Configure the uart so that we can get debug output as soon as possible */
-
-  stm32_clockconfig();
-  stm32_fpuconfig();
-  stm32_lowsetup();
-  stm32_gpioinit();
-  showprogress('A');
-
-  /* Clear .bss.  We'll do this inline (vs. calling memset) just to be
-   * certain that there are no issues with the state of global variables.
-   */
-
-  for (dest = &_sbss; dest < &_ebss; )
-    {
-      *dest++ = 0;
-    }
-  showprogress('B');
-
-  /* Move the intialized data section from his temporary holding spot in
-   * FLASH into the correct place in SRAM.  The correct place in SRAM is
-   * give by _sdata and _edata.  The temporary location is in FLASH at the
-   * end of all of the other read-only data (.text, .rodata) at _eronly.
-   */
-
-  for (src = &_eronly, dest = &_sdata; dest < &_edata; )
-    {
-      *dest++ = *src++;
-    }
-  showprogress('C');
-
-  /* Perform early serial initialization */
-
-#ifdef USE_EARLYSERIALINIT
-  up_earlyserialinit();
-#endif
-  showprogress('D');
-
-  /* Initialize onboard resources */
-
-  stm32_boardinitialize();
-  showprogress('E');
-
-  /* Then start NuttX */
-
-  showprogress('\r');
-  showprogress('\n');
-  os_start();
-
-  /* Shoulnd't get here */
-
-  for(;;);
-}