203 lines
5.9 KiB
C
203 lines
5.9 KiB
C
/****************************************************************************
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* configs/nucleo-f401re/src/stm32_init.c
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <math.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/arch.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/i2c.h>
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#include <nuttx/sdio.h>
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#include <nuttx/mmcsd.h>
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#include <nuttx/analog/adc.h>
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#include <nuttx/gran.h>
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#include <stm32.h>
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#include <stm32_uart.h>
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#include <arch/board/board.h>
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/****************************************************************************
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* Pre-Processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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#ifdef CONFIG_FAT_DMAMEMORY
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# if !defined(CONFIG_GRAN) || !defined(CONFIG_FAT_DMAMEMORY)
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# error microSD DMA support requires CONFIG_GRAN
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# endif
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#endif
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/* Debug ********************************************************************/
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#ifdef CONFIG_CPP_HAVE_VARARGS
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# ifdef CONFIG_DEBUG
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# define message(...) lowsyslog(__VA_ARGS__)
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# else
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# define message(...) printf(__VA_ARGS__)
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# endif
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#else
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# ifdef CONFIG_DEBUG
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# define message lowsyslog
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# else
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# define message printf
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# endif
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#endif
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/****************************************************************************
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* Private Data
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****************************************************************************/
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#ifdef CONFIG_FAT_DMAMEMORY
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static GRAN_HANDLE dma_allocator;
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/* The DMA heap size constrains the total number of things that can be
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* ready to do DMA at a time.
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*
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* For example, FAT DMA depends on one sector-sized buffer per file system plus
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* one sector-sized buffer per file.
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*
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* We use a fundamental alignment / granule size of 64B; this is sufficient
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* to guarantee alignment for the largest STM32 DMA burst (16 beats x 32bits).
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*/
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static uint8_t g_dma_heap[8192] __attribute__((aligned(64)));
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#endif
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static struct spi_dev_s *spi1;
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static struct sdio_dev_s *sdio;
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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#ifdef CONFIG_FAT_DMAMEMORY
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static void dma_alloc_init(void)
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{
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dma_allocator =
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gran_initialize(g_dma_heap,
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sizeof(g_dma_heap),
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7, /* 128B granule - must be > alignment (XXX bug?) */
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6); /* 64B alignment */
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if (dma_allocator == NULL)
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{
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message("[boot] DMA allocator setup FAILED");
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}
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}
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#else
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# define dma_alloc_init()
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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void up_netinitialize(void)
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{
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}
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/****************************************************************************
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* Name: nsh_archinitialize
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*
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* Description:
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* Perform architecture specific initialization
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*
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****************************************************************************/
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int nsh_archinitialize(void)
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{
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#ifdef CONFIG_MMCSD
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int ret;
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#endif
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/* Configure CPU load estimation */
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#ifdef CONFIG_SCHED_INSTRUMENTATION
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cpuload_initialize_once();
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#endif
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/* Configure SPI-based devices */
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spi1 = up_spiinitialize(1);
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if (!spi1)
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{
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message("[boot] FAILED to initialize SPI port 1\n");
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board_led_on(LED_AMBER);
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return -ENODEV;
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}
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#ifdef CONFIG_MMCSD
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/* First, get an instance of the SDIO interface */
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sdio = sdio_initialize(CONFIG_NSH_MMCSDSLOTNO);
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if (!sdio)
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{
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message("[boot] Failed to initialize SDIO slot %d\n",
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CONFIG_NSH_MMCSDSLOTNO);
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return -ENODEV;
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}
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/* Now bind the SDIO interface to the MMC/SD driver */
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ret = mmcsd_slotinitialize(CONFIG_NSH_MMCSDMINOR, sdio);
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if (ret != OK)
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{
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message("ERROR: Failed to bind SDIO to the MMC/SD driver: %d\n", ret);
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return ret;
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}
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/* Then let's guess and say that there is a card in the slot. There is no
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* card detect GPIO.
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*/
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sdio_mediachange(sdio, true);
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message("[boot] Initialized SDIO\n");
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#endif
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return OK;
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}
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