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author | Gregory Nutt <gnutt@nuttx.org> | 2015-03-21 08:22:00 -0600 |
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committer | Gregory Nutt <gnutt@nuttx.org> | 2015-03-21 08:22:00 -0600 |
commit | 5b206da38ad161f1abdfc56403e4e39b29fc379b (patch) | |
tree | 68948955a3ebe08b180565609991a7a806ad17cc /nuttx/configs/stm3220g-eval/src/stm32_deselectsram.c | |
parent | fc3bb774a8c856ac2fb9078a4bcc2cd074a553a5 (diff) | |
download | px4-nuttx-5b206da38ad161f1abdfc56403e4e39b29fc379b.tar.gz px4-nuttx-5b206da38ad161f1abdfc56403e4e39b29fc379b.tar.bz2 px4-nuttx-5b206da38ad161f1abdfc56403e4e39b29fc379b.zip |
STM3220G-EVAL: Rename files for better conformance to naming conventions
Diffstat (limited to 'nuttx/configs/stm3220g-eval/src/stm32_deselectsram.c')
-rw-r--r-- | nuttx/configs/stm3220g-eval/src/stm32_deselectsram.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/nuttx/configs/stm3220g-eval/src/stm32_deselectsram.c b/nuttx/configs/stm3220g-eval/src/stm32_deselectsram.c new file mode 100644 index 000000000..eeee8aafa --- /dev/null +++ b/nuttx/configs/stm3220g-eval/src/stm32_deselectsram.c @@ -0,0 +1,96 @@ +/************************************************************************************ + * configs/stm3220g-eval/src/stm32_deselectsram.c + * + * Copyright (C) 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. + * + ************************************************************************************/ + +/************************************************************************************ + * Included Files + ************************************************************************************/ + +#include <nuttx/config.h> + +#include <debug.h> + +#include "up_arch.h" +#include "stm32_fsmc.h" +#include "stm3220g-internal.h" + +#ifdef CONFIG_STM32_FSMC + +/************************************************************************************ + * Pre-processor Definitions + ************************************************************************************/ + +/************************************************************************************ + * Public Data + ************************************************************************************/ + +/************************************************************************************ + * Private Data + ************************************************************************************/ + +/************************************************************************************ + * Private Functions + ************************************************************************************/ + +/************************************************************************************ + * Public Functions + ************************************************************************************/ + +/************************************************************************************ + * Name: stm32_deselectsram + * + * Description: + * Disable SRAM + * + ************************************************************************************/ + +void stm32_deselectsram(void) +{ + /* Restore registers to their power up settings */ + + putreg32(FSMC_BCR_RSTVALUE, STM32_FSMC_BCR2); + + /* Bank1 NOR/SRAM timing register configuration */ + + putreg32(FSMC_BTR_RSTVALUE, STM32_FSMC_BTR2); + + /* Disable AHB clocking to the FSMC */ + + stm32_disablefsmc(); +} + +#endif /* CONFIG_STM32_FSMC */ + + + |