/* SPDX-License-Identifier: BSD-2-Clause */
/**
* @file
*
* @ingroup RTEMSBSPsPowerPCMPC55XX
*
* @brief SD Card initialization code.
*/
/*
* Copyright (c) 2008 embedded brains GmbH & Co. KG
* 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.
*
* 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.
*/
#include <stdio.h>
#include <mpc55xx/mpc55xx.h>
#include <mpc55xx/regs.h>
#include <mpc55xx/dspi.h>
#include <bsp.h>
#include <rtems/status-checks.h>
#ifdef MPC55XX_BOARD_MPC5566EVB
static rtems_status_code mpc55xx_dspi_init(void)
{
int rv = 0;
int i = 0;
char device_name [] = "/dev/spi0";
union SIU_PCR_tag pcr = MPC55XX_ZERO_FLAGS;
rv = rtems_libi2c_initialize();
RTEMS_CHECK_RV_SC( 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] = (char) ('0' + i);
rv = rtems_libi2c_register_bus( device_name, (rtems_libi2c_bus_t *) &mpc55xx_dspi_bus_table [i]);
RTEMS_CHECK_RV_SC( rv, device_name);
}
return RTEMS_SUCCESSFUL;
}
#include <stdio.h>
#include <rtems/fsmount.h>
#include <rtems/dosfs.h>
#include <rtems/bdpart.h>
#include <rtems/console.h>
#include <libchip/spi-sd-card.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,
"dosfs", RTEMS_FILESYSTEM_READ_WRITE,
FSMOUNT_MNT_OK | FSMOUNT_MNTPNT_CRTERR | FSMOUNT_MNT_FAILED,
FSMOUNT_MNT_OK
}, {
MPC55XX_DEVICE_FILE, MPC55XX_MOUNT_POINT,
"dosfs", RTEMS_FILESYSTEM_READ_WRITE,
FSMOUNT_MNT_OK | FSMOUNT_MNTPNT_CRTERR | FSMOUNT_MNT_FAILED,
0
}
};
sd_card_driver_entry sd_card_driver_table [] = {
{
.device_name = "/dev/sd-card-a",
.bus = 0,
.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 = true,
.verbose = true,
.schedule_if_busy = false
}
};
size_t sd_card_driver_table_size = sizeof( sd_card_driver_table) / sizeof( sd_card_driver_table [0]);
rtems_status_code mpc55xx_sd_card_init( bool mount)
{
rtems_status_code sc = RTEMS_SUCCESSFUL;
int rv = 0;
sd_card_driver_entry *e = &sd_card_driver_table [0];
RTEMS_DEBUG_PRINT( "Task started\n");
sc = mpc55xx_dspi_init();
RTEMS_CHECK_SC( rv, "Intitalize DSPI bus");
e->bus = mpc55xx_dspi_bus_table [0].bus_number;
sc = sd_card_register();
RTEMS_CHECK_SC( sc, "Register SD Card");
if (mount) {
sc = rtems_bdpart_register_from_disk( MPC55XX_DEVICE_FILE);
RTEMS_CHECK_SC( sc, "Initialize IDE partition table");
rv = rtems_fsmount( mpc55xx_fs_table, sizeof( mpc55xx_fs_table) / sizeof( mpc55xx_fs_table [0]), NULL);
RTEMS_CHECK_RV_SC( rv, "Mount file systems");
}
return RTEMS_SUCCESSFUL;
}
#endif /* MPC55XX_BOARD_MPC5566EVB */
