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SAMV7-XULT: Add support for a character device to access the on-chip FLASH programming memory

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This commit is contained in:
Gregory Nutt 2015-11-12 16:02:18 -06:00
parent 894343834d
commit d20f61d2a8
2 changed files with 79 additions and 19 deletions
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50
configs/samv71-xult/src/sam_bringup.c
View File

@ -57,10 +57,13 @@
#include "samv71-xult.h"
#if defined(HAVE_S25FL1) || defined(HAVE_PROGMEM_CHARDEV)
# include <nuttx/mtd/mtd.h>
#endif
#ifdef HAVE_S25FL1
#include <nuttx/spi/qspi.h>
#include <nuttx/mtd/mtd.h>
#include "sam_qspi.h"
# include <nuttx/spi/qspi.h>
# include "sam_qspi.h"
#endif
#ifdef HAVE_ROMFS
@ -99,11 +102,13 @@ int sam_bringup(void)
{
#ifdef HAVE_S25FL1
FAR struct qspi_dev_s *qspi;
#endif
#if defined(HAVE_S25FL1) || defined(HAVE_PROGMEM_CHARDEV)
FAR struct mtd_dev_s *mtd;
#ifndef HAVE_S25FL1_SMARTFS
#endif
#if defined(HAVE_S25FL1_CHARDEV) || defined(HAVE_PROGMEM_CHARDEV)
char blockdev[18];
char chardev[12];
#endif
#endif
int ret;
@ -241,7 +246,7 @@ int sam_bringup(void)
return ret;
}
#else
#else /* if defined(HAVE_S25FL1_CHARDEV) */
/* Use the FTL layer to wrap the MTD driver as a block driver */
ret = ftl_initialize(S25FL1_MTD_MINOR, mtd);
@ -268,6 +273,39 @@ int sam_bringup(void)
}
#endif
#ifdef HAVE_PROGMEM_CHARDEV
/* Create an instance of the SAMV71 FLASH program memory device driver */
mtd = progmem_initialize();
if (!mtd)
{
SYSLOG("ERROR: progmem_initialize failed\n");
}
/* Use the FTL layer to wrap the MTD driver as a block driver */
ret = ftl_initialize(PROGMEM_MTD_MINOR, mtd);
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", PROGMEM_MTD_MINOR);
snprintf(chardev, 12, "/dev/mtd%d", PROGMEM_MTD_MINOR);
/* Now create a character device on the block device */
ret = bchdev_register(blockdev, chardev, false);
if (ret < 0)
{
SYSLOG("ERROR: bchdev_register %s failed: %d\n", chardev, ret);
return ret;
}
#endif
#ifdef HAVE_USBHOST
/* Initialize USB host operation. sam_usbhost_initialize() starts a thread
* will monitor for USB connection and disconnection events.

48
configs/samv71-xult/src/samv71-xult.h
View File

@ -53,19 +53,21 @@
************************************************************************************/
/* Configuration ********************************************************************/
#define HAVE_HSMCI 1
#define HAVE_AUTOMOUNTER 1
#define HAVE_USB 1
#define HAVE_USBDEV 1
#define HAVE_USBMONITOR 1
#define HAVE_NETWORK 1
#define HAVE_MACADDR 1
#define HAVE_MTDCONFIG 1
#define HAVE_S25FL1 1
#define HAVE_S25FL1_NXFFS 1
#define HAVE_S25FL1_SMARTFS 1
#define HAVE_WM8904 1
#define HAVE_AUDIO_NULL 1
#define HAVE_HSMCI 1
#define HAVE_AUTOMOUNTER 1
#define HAVE_USB 1
#define HAVE_USBDEV 1
#define HAVE_USBMONITOR 1
#define HAVE_NETWORK 1
#define HAVE_MACADDR 1
#define HAVE_MTDCONFIG 1
#define HAVE_S25FL1 1
#define HAVE_S25FL1_NXFFS 1
#define HAVE_S25FL1_SMARTFS 1
#define HAVE_S25FL1_CHARDEV 1
#define HAVE_PROGMEM_CHARDEV 1
#define HAVE_WM8904 1
#define HAVE_AUDIO_NULL 1
/* HSMCI */
/* Can't support MMC/SD if the card interface is not enabled */
@ -190,12 +192,14 @@
# undef HAVE_S25FL1
# undef HAVE_S25FL1_NXFFS
# undef HAVE_S25FL1_SMARTFS
# undef HAVE_S25FL1_CHARDEV
#endif
#ifndef CONFIG_SAMV7_QSPI
# undef HAVE_S25FL1
# undef HAVE_S25FL1_NXFFS
# undef HAVE_S25FL1_SMARTFS
# undef HAVE_S25FL1_CHARDEV
#endif
#ifndef CONFIG_FS_NXFFS
@ -206,6 +210,20 @@
# undef HAVE_S25FL1_SMARTFS
#endif
#if defined(HAVE_S25FL1_NXFFS) && defined(HAVE_S25FL1_SMARTFS)
# undef HAVE_S25FL1_NXFFS
#endif
#if defined(HAVE_S25FL1_NXFFS) || defined(HAVE_S25FL1_SMARTFS)
# undef HAVE_S25FL1_CHARDEV
#endif
/* On-chip Programming Memory */
#if !defined(CONFIG_SAMV7_PROGMEM) || !defined(CONFIG_MTD_PROGMEM)
# undef HAVE_PROGMEM_CHARDEV
#endif
/* If both the S25FL1 FLASH and SmartFS, then this is the minor device
* number of the Smart block driver (/dev/smartN)
*/
@ -219,6 +237,10 @@
#define S25FL1_MTD_MINOR 0
/* This is the on-chip progmem memroy driver minor number */
#define PROGMEM_MTD_MINOR 1
/* Audio */
/* PCM/WM8904 driver */