b-l475e-iot01a: add basic support for external Macronix QuadSPI flash memory
This commit is contained in:
Simon Piriou
Gregory Nutt
parent
b1f50490bd
commit
38569d50fb
@ -3,8 +3,43 @@
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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# if ARCH_BOARD_B_L475E_IOT01A
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if ARCH_BOARD_B_L475E_IOT01A
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# TODO
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config B_L475E_IOT01A_MTD_FLASH
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bool "MTD driver for external 64Mbytes flash memory"
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default n
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select STM32L4_DMA1
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select STM32L4_QSPI
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select MTD
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select MTD_MX25RXX
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select MTD_SMART
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select MTD_SMART_MINIMIZE_RAM
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select FS_SMARTFS
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---help---
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Configures an MTD device for use with the onboard external flash
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using QuadSPI interface.
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# endif
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if B_L475E_IOT01A_MTD_FLASH
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config B_L475E_IOT01A_MTD_FLASH_MINOR
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int "Minor number for the flash memory /dev/smart entry"
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default 0
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---help---
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Sets the minor number for the flash memory /dev/smart entry
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config B_L475E_IOT01A_MTD_PART
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bool "Enable partition support"
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default n
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select MTD_PARTITION
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---help---
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Enables creation of partitions on the external flash memory.
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config B_L475E_IOT01A_MTD_PART_LIST
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string "Flash partition size list"
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default "512,8192,8192,16384"
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depends on B_L475E_IOT01A_MTD_PART
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---help---
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Comma separated list of partition sizes in KB.
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endif # B_L475E_IOT01A_MTD_FLASH
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endif # ARCH_BOARD_B_L475E_IOT01A
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@ -96,6 +96,8 @@
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#define STM32L4_LSI_FREQUENCY 32000
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#define STM32L4_LSE_FREQUENCY 32768
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#define BOARD_AHB_FREQUENCY 80000000ul
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#define STM32L4_BOARD_USEHSI 1
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/* XXX sysclk mux = pllclk */
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@ -164,6 +164,16 @@
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#define GPIO_SPI3_MISO GPIO_SPI3_MISO_2
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#define GPIO_SPI3_MOSI GPIO_SPI3_MOSI_2
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/* Quad SPI: connected to MX25R6435F external flash memory */
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#define GPIO_QSPI_CS (GPIO_QSPI_NCS_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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#define GPIO_QSPI_IO0 (GPIO_QSPI_BK1_IO0_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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#define GPIO_QSPI_IO1 (GPIO_QSPI_BK1_IO1_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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#define GPIO_QSPI_IO2 (GPIO_QSPI_BK1_IO2_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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#define GPIO_QSPI_IO3 (GPIO_QSPI_BK1_IO3_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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#define GPIO_QSPI_SCK (GPIO_QSPI_CLK_2 | GPIO_FLOAT | GPIO_PUSHPULL | GPIO_SPEED_100MHz)
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/************************************************************************************
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* Public Data
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************************************************************************************/
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@ -51,6 +51,8 @@
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/* Configuration ************************************************************/
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#define HAVE_SPSGRF 1
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#define HAVE_MX25R6435F 1
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#define HAVE_MX25R6435F_SMARTFS 1
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/* SPSGRF support depends on:
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*
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@ -81,6 +83,15 @@
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# undef HAVE_SPSGRF
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#endif
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#if !defined(CONFIG_MTD_MX25RXX) || !defined(CONFIG_STM32L4_QSPI)
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# undef HAVE_MX25R6435F
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#endif
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#if !defined(HAVE_MX25R6435F) || !defined(CONFIG_MTD_SMART) || \
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!defined(CONFIG_FS_SMARTFS)
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# undef HAVE_MX25R6435F_SMARTFS
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#endif
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/* GPIO Definitions *********************************************************/
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/* LEDs */
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@ -39,16 +39,22 @@
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <sys/types.h>
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#include <sys/mount.h>
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#include <syslog.h>
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#include <errno.h>
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#include <nuttx/input/buttons.h>
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#include <nuttx/leds/userled.h>
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#include <nuttx/board.h>
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#include <nuttx/spi/qspi.h>
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#include <nuttx/mtd/mtd.h>
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#include <nuttx/board.h>
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#include <arch/board/board.h>
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#include "stm32l4_qspi.h"
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#include "b-l475e-iot01a.h"
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/****************************************************************************
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@ -97,6 +103,127 @@ int stm32l4_bringup(void)
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#endif /* CONFIG_USERLED_LOWER */
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#endif /* CONFIG_USERLED && !CONFIG_ARCH_LEDS */
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#ifdef HAVE_MX25R6435F
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{
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/* Create an instance of the STM32L4 QSPI device driver */
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FAR struct qspi_dev_s *g_qspi;
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FAR struct mtd_dev_s *g_mtd_fs;
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g_qspi = stm32l4_qspi_initialize(0);
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if (g_qspi == NULL)
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{
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syslog(LOG_ERR, "ERROR: stm32l4_qspi_initialize failed\n");
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return -EIO;
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}
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/* Use the QSPI device instance to initialize the
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* MX25R6435F flash device.
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*/
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g_mtd_fs = mx25rxx_initialize(g_qspi, true);
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if (!g_mtd_fs)
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{
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syslog(LOG_ERR, "ERROR: mx25rxx_initialize failed\n");
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return -EIO;
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}
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#ifdef CONFIG_B_L475E_IOT01A_MTD_PART
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{
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/* Create partitions on external flash memory */
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int partno;
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int partsize;
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int partoffset;
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int partszbytes;
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int erasesize;
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FAR struct mtd_geometry_s geo;
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const char *ptr = CONFIG_B_L475E_IOT01A_MTD_PART_LIST;
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FAR struct mtd_dev_s *mtd_part;
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char partref[4];
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/* Now create a partition on the FLASH device */
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partno = 0;
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partoffset = 0;
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/* Query MTD geometry */
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ret = MTD_IOCTL(g_mtd_fs, MTDIOC_GEOMETRY,
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(unsigned long)(uintptr_t)&geo);
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: MTDIOC_GEOMETRY failed\n");
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return ret;
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}
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/* Get the Flash erase size */
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erasesize = geo.erasesize;
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while (*ptr != '\0')
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{
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/* Get the partition size */
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partsize = atoi(ptr);
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if (partsize <= 0)
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{
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syslog(LOG_ERR, "Error while processing <%s>\n", ptr);
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goto process_next_part;
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}
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partszbytes = (partsize << 10); /* partsize is defined in KB */
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if ((partszbytes < erasesize) || ((partszbytes % erasesize) != 0))
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{
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syslog(LOG_ERR, "Invalid partition size: %d bytes\n",
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partszbytes);
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partszbytes = (partszbytes+erasesize) & -erasesize;
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}
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mtd_part = mtd_partition(g_mtd_fs, partoffset,
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partszbytes / erasesize);
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partoffset += partszbytes / erasesize;
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#if defined(CONFIG_MTD_SMART) && defined(CONFIG_FS_SMARTFS)
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/* Now initialize a SMART Flash block device and bind it to the MTD
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* device */
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sprintf(partref, "p%d", partno);
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smart_initialize(CONFIG_B_L475E_IOT01A_MTD_FLASH_MINOR,
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mtd_part, partref);
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#endif
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process_next_part:
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/* Update the pointer to point to the next size in the list */
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while ((*ptr >= '0') && (*ptr <= '9'))
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{
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ptr++;
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}
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if (*ptr == ',')
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{
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ptr++;
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}
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/* Increment the part number */
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partno++;
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}
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}
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#else /* CONFIG_B_L475E_IOT01A_MTD_PART */
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#ifdef HAVE_MX25R6435F_SMARTFS
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/* Configure the device with no partition support */
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smart_initialize(CONFIG_B_L475E_IOT01A_MTD_FLASH_MINOR, g_mtd_fs, NULL);
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#endif /* HAVE_MX25R6435F_SMARTFS */
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#endif /* CONFIG_B_L475E_IOT01A_MTD_PART */
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}
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#endif /* HAVE_MX25R6435F */
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#ifdef HAVE_SPSGRF
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/* Configure Spirit/SPSGRF wireless */
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