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#include <stdio.h>
#include <mpc55xx/mpc55xx.h>
#include <mpc55xx/regs.h>
#include <mpc55xx/dspi.h>
#include <libchip/spi-sd-card.h>
#define DEBUG
#include <rtems/status-checks.h>
#include <bsp.h>
static rtems_status_code mpc55xx_dspi_init()
{
int rv = 0;
int i = 0;
char device_name [] = "/dev/spi0";
union SIU_PCR_tag pcr = MPC55XX_ZERO_FLAGS;
rv = rtems_libi2c_initialize();
CHECK_RVSC( rv, "rtems_libi2c_initialize");
/* DSPI D inputs are taken from DSPI C */
SIU.DISR.R = 0x000000FC;
/* DSPI A signals */
pcr.B.PA = 1;
pcr.B.ODE = 0;
pcr.B.HYS = 0;
pcr.B.SRC = 3;
pcr.B.WPE = 1;
pcr.B.WPS = 1;
/* SCK */
pcr.B.OBE = 1;
pcr.B.IBE = 0;
SIU.PCR [93].R = pcr.R;
/* SIN */
pcr.B.OBE = 0;
pcr.B.IBE = 1;
SIU.PCR [94].R = pcr.R;
/* SOUT */
pcr.B.OBE = 1;
pcr.B.IBE = 0;
SIU.PCR [95].R = pcr.R;
/* PCSx */
pcr.B.OBE = 1;
pcr.B.IBE = 0;
SIU.PCR [96].R = pcr.R;
SIU.PCR [97].R = pcr.R;
SIU.PCR [98].R = pcr.R;
SIU.PCR [99].R = pcr.R;
SIU.PCR [100].R = pcr.R;
SIU.PCR [101].R = pcr.R;
mpc55xx_dspi_bus_table [3].master = 0;
for (i = 0; i < MPC55XX_DSPI_NUMBER; ++i) {
device_name [8] = '0' + i;
rv = rtems_libi2c_register_bus( device_name, (rtems_libi2c_bus_t *) &mpc55xx_dspi_bus_table [i]);
CHECK_RVSC( rv, device_name);
}
return RTEMS_SUCCESSFUL;
}
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <fcntl.h>
#include <dirent.h>
#include <stdio.h>
#include <rtems/fsmount.h>
#include <rtems/dosfs.h>
#include <rtems/ide_part_table.h>
#include <rtems/console.h>
#define MPC55XX_DEVICE "sd-card-a"
#define MPC55XX_DEVICE_FILE "/dev/" MPC55XX_DEVICE
#define MPC55XX_PARTITION "/dev/sd-card-a1"
#define MPC55XX_MOUNT_POINT "/mnt"
static fstab_t mpc55xx_fs_table [] = { {
MPC55XX_PARTITION, MPC55XX_MOUNT_POINT,
&msdos_ops, RTEMS_FILESYSTEM_READ_WRITE,
FSMOUNT_MNT_OK | FSMOUNT_MNTPNT_CRTERR | FSMOUNT_MNT_FAILED,
FSMOUNT_MNT_OK
}, {
MPC55XX_DEVICE_FILE, MPC55XX_MOUNT_POINT,
&msdos_ops, RTEMS_FILESYSTEM_READ_WRITE,
FSMOUNT_MNT_OK | FSMOUNT_MNTPNT_CRTERR | FSMOUNT_MNT_FAILED,
0
}
};
#define SD_CARD_NUMBER 1
sd_card_driver_entry sd_card_driver_table [SD_CARD_NUMBER] = { {
.driver = {
.ops = &sd_card_driver_ops,
.size = sizeof( sd_card_driver_entry)
},
.table_index = 0,
.minor = 0,
.device_name = "sd-card-a",
.disk_device_name = "/dev/sd-card-a",
.transfer_mode = SD_CARD_TRANSFER_MODE_DEFAULT,
.command = SD_CARD_COMMAND_DEFAULT,
/* response : whatever, */
.response_index = SD_CARD_COMMAND_SIZE,
.n_ac_max = SD_CARD_N_AC_MAX_DEFAULT,
.block_number = 0,
.block_size = 0,
.block_size_shift = 0,
.busy = 1,
.verbose = 1,
.schedule_if_busy = 0,
}
};
rtems_status_code mpc55xx_sd_card_init()
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
int rv = 0;
sd_card_driver_entry *e = &sd_card_driver_table [0];
DEBUG_PRINT( "Task started\n");
sc = mpc55xx_dspi_init();
CHECK_SC( rv, "Intitalize DSPI bus");
rv = rtems_libi2c_register_drv( e->device_name, (rtems_libi2c_drv_t *) e, mpc55xx_dspi_bus_table [0].bus_number, 0);
CHECK_RVSC( rv, "Register SD Card driver");
sc = rtems_ide_part_table_initialize( MPC55XX_DEVICE_FILE);
CHECK_SC( sc, "Initialize IDE partition table");
rv = mkdir( MPC55XX_MOUNT_POINT, S_IRWXU);
CHECK_RVSC( rv, "Create mount point");
rv = rtems_fsmount( mpc55xx_fs_table, sizeof( mpc55xx_fs_table) / sizeof( mpc55xx_fs_table [0]), NULL);
CHECK_RVSC( rv, "Mount file systems");
return RTEMS_SUCCESSFUL;
}
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