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Add support for a ROMFS image for MPFS

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The image must be placed into:
boards/risc-v/mpfs/icicle/include/boot_romfsimg.h

The image is mounted by mpfs_bringup, which is run by the application
itself, or by board_late_initialize() in the case when
CONFIG_BOARD_LATE_INITIALIZE is defined, e.g. with CONFIG_BUILD_KERNEL
This commit is contained in:
Ville Juven 2021-12-28 13:00:15 +02:00 committed by Alan Carvalho de Assis
parent 281ec4682f
commit 7c116efe05
3 changed files with 65 additions and 0 deletions
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8
arch/risc-v/src/mpfs/Kconfig
View File

@ -137,6 +137,14 @@ config MPFS_EMMCSD_MUX_GPIO
---help---
External mux GPIO between e.MMC and SD-card
config MPFS_ROMFS_MOUNT
bool "Mount the ROMFS file system"
depends on FS_ROMFS
default n
---help---
Mount a ROMFS image to /bin mount point. The image must be placed into
<arch/board/boot_romfsimg.h>
menu "MPFS Peripheral Support"
# These "hidden" settings determine whether a peripheral option is available

24
boards/risc-v/mpfs/common/src/mpfs_boot.c
View File

@ -29,6 +29,8 @@
#include <nuttx/board.h>
#include <arch/board/board.h>
#include "board_config.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
@ -56,3 +58,25 @@ void mpfs_boardinitialize(void)
{
board_autoled_initialize();
}
/****************************************************************************
* Name: board_late_initialize
*
* Description:
* If CONFIG_BOARD_LATE_INITIALIZE is selected, then an additional
* initialization call will be performed in the boot-up sequence to a
* function called board_late_initialize(). board_late_initialize() will be
* called immediately after up_initialize() is called and just before the
* initial application is started. This additional initialization phase
* may be used, for example, to initialize board-specific device drivers.
*
****************************************************************************/
#ifdef CONFIG_BOARD_LATE_INITIALIZE
void board_late_initialize(void)
{
/* Perform board initialization */
mpfs_bringup();
}
#endif /* CONFIG_BOARD_LATE_INITIALIZE */

33
boards/risc-v/mpfs/icicle/src/mpfs_bringup.c
View File

@ -33,10 +33,23 @@
#include <nuttx/board.h>
#include <nuttx/drivers/ramdisk.h>
#ifdef CONFIG_MPFS_ROMFS_MOUNT
# include <arch/board/boot_romfsimg.h>
#endif
#include "board_config.h"
#include "mpfs_corepwm.h"
#include "mpfs.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#ifdef CONFIG_MPFS_ROMFS_MOUNT
# define SECTORSIZE 512
# define NSECTORS(b) (((b) + SECTORSIZE - 1) / SECTORSIZE)
#endif /* CONFIG_MPFS_ROMFS_MOUNT */
/****************************************************************************
* Public Functions
****************************************************************************/
@ -70,6 +83,26 @@ int mpfs_bringup(void)
}
#endif
#ifdef CONFIG_MPFS_ROMFS_MOUNT
/* Create a ROM disk for the /bin filesystem */
ret = romdisk_register(0, romfs_img, NSECTORS(romfs_img_len), SECTORSIZE);
if (ret < 0)
{
serr("ERROR: Failed to register romdisk: %d\n", -ret);
}
else
{
/* Mount the file system */
ret = mount("/dev/ram0", "/bin", "romfs", MS_RDONLY, NULL);
if (ret < 0)
{
serr("ERROR: Failed to mount romfs: %d\n", -ret);
}
}
#endif /* CONFIG_MPFS_ROMFS_MOUNT */
#if defined(CONFIG_MPFS_SPI0) || defined(CONFIG_MPFS_SPI1)
/* Configure SPI peripheral interfaces */