STM32F0: type of regval should be uint32_t in clockconfig(). Fix a warning from __start().

arch/arm/src/stm32f0/stm32f0_clockconfig.c

@@ -69,16 +69,16 @@
 
 void stm32f0_clockconfig(void)
 {
-  int regval;
+  uint32_t regval;
 
-  /*  Verify if PLL is already setup, if so define to use HSI mode */
+  /*  Verify if PLL is already setup.  If so configure to use HSI mode */
 
   if ((getreg32(STM32F0_RCC_CFGR) & RCC_CFGR_SWS_MASK) == RCC_CFGR_SWS_PLL)
     {
       /* Select HSI mode */
 
       regval  = getreg32(STM32F0_RCC_CFGR);
-      regval &= (uint32_t) (~RCC_CFGR_SW_MASK);
+      regval &= ~RCC_CFGR_SW_MASK;
       putreg32(regval, STM32F0_RCC_CFGR);
 
       while ((getreg32(STM32F0_RCC_CFGR) & RCC_CFGR_SWS_MASK) != RCC_CFGR_SWS_HSI);
@@ -87,7 +87,7 @@ void stm32f0_clockconfig(void)
   /* Disable the PLL */
 
   regval  = getreg32(STM32F0_RCC_CR);
-  regval &= (uint32_t)(~RCC_CR_PLLON);
+  regval &= ~RCC_CR_PLLON;
   putreg32(regval, STM32F0_RCC_CR);
   while ((getreg32(STM32F0_RCC_CR) & RCC_CR_PLLRDY) != 0);
 
@@ -108,7 +108,7 @@ void stm32f0_clockconfig(void)
   /* Configure to use the PLL */
 
   regval  = getreg32(STM32F0_RCC_CFGR);
-  regval |= (uint32_t)(RCC_CFGR_SW_PLL);
+  regval |= RCC_CFGR_SW_PLL;
   putreg32(regval, STM32F0_RCC_CFGR);
   while ((getreg32(STM32F0_RCC_CFGR) & RCC_CFGR_SW_MASK) != RCC_CFGR_SW_PLL);
 }

arch/arm/src/stm32f0/stm32f0_start.c

@@ -52,10 +52,7 @@
 
 #include "stm32f0_clockconfig.h"
 #include "stm32f0_lowputc.h"
-
+#include "stm32f0_start.h"
-#ifdef CONFIG_ARCH_FPU
-#  include "nvic.h"
-#endif
 
 /****************************************************************************
  * Pre-processor Definitions

arch/arm/src/stm32f0/stm32f0_start.h

@@ -0,0 +1,76 @@
+/************************************************************************************
+ * arch/arm/src/stm32f0/stm32f0_start.h
+ *
+ *   Copyright (C) 2017 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.
+ *
+ ************************************************************************************/
+
+#ifndef __ARCH_ARM_SRC_STM32F0_STM32F0_START_H
+#define __ARCH_ARM_SRC_STM32F0_STM32F0_START_H
+
+/************************************************************************************
+ * Included Files
+ ************************************************************************************/
+
+#include <nuttx/config.h>
+
+/************************************************************************************
+ * Public Data
+ ************************************************************************************/
+
+#ifndef __ASSEMBLY__
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/************************************************************************************
+ * Public Functions
+ ************************************************************************************/
+
+/************************************************************************************
+ * Name: stm32f0_boardinitialize
+ *
+ * Description:
+ *   All STM32 architectures must provide the following entry point.  This entry
+ *   point is called early in the intitialization -- after all memory has been
+ *   configured and mapped but before any devices have been initialized.
+ *
+ ************************************************************************************/
+
+void stm32f0_boardinitialize(void);
+
+#ifdef __cplusplus
+}
+#endif
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ARCH_ARM_SRC_STM32F0_STM32F0_START_H */

configs/stm32f0discovery/nsh/setenv.sh

@@ -48,15 +48,20 @@ if [ -z "${PATH_ORIG}" ]; then
   export PATH_ORIG="${PATH}"
 fi
 
-# This is the Cygwin path to the location where I installed the RIDE
-# toolchain under windows.  You will also have to edit this if you install
-# the RIDE toolchain in any other location
-#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/Raisonance/Ride/arm-gcc/bin"
-
 # This is the Cygwin path to the location where I installed the CodeSourcery
 # toolchain under windows.  You will also have to edit this if you install
 # the CodeSourcery toolchain in any other location
-export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++ Lite/bin"
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
+# export TOOLCHAIN_BIN="/cygdrive/c/Users/MyName/MentorGraphics/Sourcery_CodeBench_Lite_for_ARM_EABI/bin"
+
+# This is the location where I installed the ARM "GNU Tools for ARM Embedded Processors"
+# You can this free toolchain here https://launchpad.net/gcc-arm-embedded
+export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/GNU Tools ARM Embedded/4.9 2015q2/bin"
+
+# This is the path to the location where I installed the devkitARM toolchain
+# You can get this free toolchain from http://devkitpro.org/ or http://sourceforge.net/projects/devkitpro/
+#export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/devkitARM/bin"
 
 # These are the Cygwin paths to the locations where I installed the Atollic
 # toolchain under windows.  You will also have to edit this if you install
@@ -68,7 +73,7 @@ export TOOLCHAIN_BIN="/cygdrive/c/Program Files (x86)/CodeSourcery/Sourcery G++
 
 # This is the Cygwin path to the location where I build the buildroot
 # toolchain.
-#export TOOLCHAIN_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
+# export TOOLCHAIN_BIN="${WD}/../buildroot/build_arm_nofpu/staging_dir/bin"
 
 # Add the path to the toolchain to the PATH varialble
 export PATH="${TOOLCHAIN_BIN}:/sbin:/usr/sbin:${PATH_ORIG}"