/**************************************************************************** * configs/stm32l476vg-disco/src/stm32_appinit.c * * Copyright (C) 2016 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "stm32l476vg-disco.h" /* Conditional logic in stm32l476vg-disco.h will determine if certain features * are supported. Tests for these features need to be made after including * stm32l476vg-disco.h. */ #ifdef HAVE_RTC_DRIVER # include # include "stm32l4_rtc.h" #endif #if defined(HAVE_N25QXXX) # include #endif #ifdef HAVE_N25QXXX # include # include "stm32l4_qspi.h" #endif /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Debug ********************************************************************/ #ifdef CONFIG_BOARD_INITIALIZE # define SYSLOG lldbg #else # define SYSLOG dbg #endif /**************************************************************************** * Private Type Definitions ****************************************************************************/ /**************************************************************************** * Private Function Prototypes ****************************************************************************/ /**************************************************************************** * Private Data ****************************************************************************/ #ifdef HAVE_N25QXXX FAR struct qspi_dev_s *g_qspi; FAR struct mtd_dev_s *g_mtd_fs; #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: board_app_initialize * * Description: * Application initialization stub for boardctl() * ****************************************************************************/ #ifdef CONFIG_LIB_BOARDCTL int board_app_initialize(void) { #ifdef HAVE_RTC_DRIVER FAR struct rtc_lowerhalf_s *rtclower; #endif #if defined(HAVE_N25QXXX) FAR struct mtd_dev_s *mtd_temp; #endif #if defined(HAVE_N25QXXX_CHARDEV) char blockdev[18]; char chardev[12]; #endif int ret; (void)ret; #ifdef CONFIG_SCHED_INSTRUMENTATION /* Configure CPU load estimation */ cpuload_initialize_once(); #endif #ifdef HAVE_PROC /* mount the proc filesystem */ syslog(LOG_INFO, "Mounting procfs to /proc\n"); ret = mount(NULL, CONFIG_NSH_PROC_MOUNTPOINT, "procfs", 0, NULL); if (ret < 0) { syslog(LOG_ERR, "ERROR: Failed to mount the PROC filesystem: %d (%d)\n", ret, errno); return ret; } #endif #ifdef HAVE_RTC_DRIVER /* Instantiate the STM32 lower-half RTC driver */ rtclower = stm32l4_rtc_lowerhalf(); if (!rtclower) { sdbg("ERROR: Failed to instantiate the RTC lower-half driver\n"); return -ENOMEM; } else { /* Bind the lower half driver and register the combined RTC driver * as /dev/rtc0 */ ret = rtc_initialize(0, rtclower); if (ret < 0) { sdbg("ERROR: Failed to bind/register the RTC driver: %d\n", ret); return ret; } } #endif #ifdef HAVE_N25QXXX /* Create an instance of the STM32L4 QSPI device driver */ g_qspi = stm32l4_qspi_initialize(0); if (!g_qspi) { SYSLOG("ERROR: stm32l4_qspi_initialize failed\n"); return ret; } else { /* Use the QSPI device instance to initialize the * N25QXXX device. */ mtd_temp = n25qxxx_initialize(g_qspi, true); if (!mtd_temp) { SYSLOG("ERROR: n25qxxx_initialize failed\n"); return ret; } g_mtd_fs = mtd_temp; #ifdef CONFIG_MTD_PARTITION /* Setup a partition of 256KiB for our file system. */ #if defined(CONFIG_N25QXXX_SECTOR512) mtd_temp = mtd_partition(g_mtd_fs, 0, 512); #else mtd_temp = mtd_partition(g_mtd_fs, 0, 64); #endif if (!g_mtd_fs) { SYSLOG("ERROR: mtd_partition failed\n"); return ret; } g_mtd_fs = mtd_temp; #endif /* Use the FTL layer to wrap the MTD driver as a block driver */ ret = ftl_initialize(N25QXXX_MTD_MINOR, g_mtd_fs); if (ret < 0) { SYSLOG("ERROR: Failed to initialize the FTL layer: %d\n", ret); return ret; } /* Use the minor number to create device paths */ snprintf(blockdev, 18, "/dev/mtdblock%d", N25QXXX_MTD_MINOR); snprintf(chardev, 12, "/dev/mtd%d", N25QXXX_MTD_MINOR); /* Now create a character device on the block device */ /* NOTE: for this to work, you will need to make sure that * CONFIG_FS_WRITABLE is set in the config. It's not a user- * visible setting, but you can make it set by selecting an * arbitrary writable file system (you don't have to actually * use it, just select it so that the block device created via * ftl_initialize() will be writable). */ ret = bchdev_register(blockdev, chardev, false); if (ret < 0) { SYSLOG("ERROR: bchdev_register %s failed: %d\n", chardev, ret); return ret; } } #endif return OK; } #endif /* CONFIG_LIB_BOARDCTL */ #ifdef CONFIG_BOARDCTL_IOCTL int board_ioctl(unsigned int cmd, uintptr_t arg) { switch(cmd) { #ifdef HAVE_N25QXXX case BIOC_ENTER_MEMMAP: { struct qspi_meminfo_s meminfo; /* Set up the meminfo like a regular memory transaction, many of the fields * are not used, the others are to set up for the 'read' command that will * automatically be issued by the controller as needed. * 6 = CONFIG_N25QXXX_DUMMIES; * 0xeb = N25QXXX_FAST_READ_QUADIO; */ meminfo.flags = QSPIMEM_READ | QSPIMEM_QUADIO; meminfo.addrlen = 3; meminfo.dummies = 6; //CONFIG_N25QXXX_DUMMIES; meminfo.cmd = 0xeb;//N25QXXX_FAST_READ_QUADIO; meminfo.addr = 0; meminfo.buflen = 0; meminfo.buffer = NULL; stm32l4_qspi_enter_memorymapped(g_qspi, &meminfo, 80000000); } break; case BIOC_EXIT_MEMMAP: stm32l4_qspi_exit_memorymapped(g_qspi); break; #endif default: return -EINVAL; break; } return OK; } #endif