[dab9e55c] | 1 | /** |
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| 2 | * @file |
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| 3 | * |
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| 4 | * @ingroup mpc55xx |
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| 5 | * |
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| 6 | * @brief SD Card initialization code. |
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| 7 | */ |
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| 8 | |
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| 9 | /* |
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| 10 | * Copyright (c) 2008 |
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| 11 | * Embedded Brains GmbH |
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| 12 | * Obere Lagerstr. 30 |
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| 13 | * D-82178 Puchheim |
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| 14 | * Germany |
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| 15 | * rtems@embedded-brains.de |
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| 16 | * |
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[0e27119] | 17 | * The license and distribution terms for this file may be |
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| 18 | * found in the file LICENSE in this distribution or at |
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| 19 | * http://www.rtems.com/license/LICENSE. |
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[dab9e55c] | 20 | */ |
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| 21 | |
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[d374492] | 22 | #include <stdio.h> |
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[574fb67] | 23 | |
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| 24 | #include <mpc55xx/mpc55xx.h> |
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| 25 | #include <mpc55xx/regs.h> |
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| 26 | #include <mpc55xx/dspi.h> |
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| 27 | |
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[d374492] | 28 | #include <bsp.h> |
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[574fb67] | 29 | |
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| 30 | #include <rtems/status-checks.h> |
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| 31 | |
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[a762dc2] | 32 | #ifdef MPC55XX_BOARD_MPC5566EVB |
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| 33 | |
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[bb6c1e56] | 34 | static rtems_status_code mpc55xx_dspi_init(void) |
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[574fb67] | 35 | { |
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| 36 | int rv = 0; |
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| 37 | int i = 0; |
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| 38 | char device_name [] = "/dev/spi0"; |
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| 39 | union SIU_PCR_tag pcr = MPC55XX_ZERO_FLAGS; |
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| 40 | |
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| 41 | rv = rtems_libi2c_initialize(); |
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[7495494] | 42 | RTEMS_CHECK_RV_SC( rv, "rtems_libi2c_initialize"); |
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[574fb67] | 43 | |
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| 44 | /* DSPI D inputs are taken from DSPI C */ |
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| 45 | SIU.DISR.R = 0x000000FC; |
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| 46 | |
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| 47 | /* DSPI A signals */ |
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| 48 | pcr.B.PA = 1; |
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| 49 | pcr.B.ODE = 0; |
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| 50 | pcr.B.HYS = 0; |
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| 51 | pcr.B.SRC = 3; |
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| 52 | pcr.B.WPE = 1; |
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| 53 | pcr.B.WPS = 1; |
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| 54 | |
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| 55 | /* SCK */ |
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| 56 | pcr.B.OBE = 1; |
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| 57 | pcr.B.IBE = 0; |
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| 58 | SIU.PCR [93].R = pcr.R; |
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| 59 | |
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| 60 | /* SIN */ |
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| 61 | pcr.B.OBE = 0; |
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| 62 | pcr.B.IBE = 1; |
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| 63 | SIU.PCR [94].R = pcr.R; |
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| 64 | |
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| 65 | /* SOUT */ |
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| 66 | pcr.B.OBE = 1; |
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| 67 | pcr.B.IBE = 0; |
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| 68 | SIU.PCR [95].R = pcr.R; |
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| 69 | |
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| 70 | /* PCSx */ |
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| 71 | pcr.B.OBE = 1; |
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| 72 | pcr.B.IBE = 0; |
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| 73 | SIU.PCR [96].R = pcr.R; |
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| 74 | SIU.PCR [97].R = pcr.R; |
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| 75 | SIU.PCR [98].R = pcr.R; |
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| 76 | SIU.PCR [99].R = pcr.R; |
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| 77 | SIU.PCR [100].R = pcr.R; |
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| 78 | SIU.PCR [101].R = pcr.R; |
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| 79 | |
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| 80 | mpc55xx_dspi_bus_table [3].master = 0; |
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| 81 | for (i = 0; i < MPC55XX_DSPI_NUMBER; ++i) { |
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[dab9e55c] | 82 | device_name [8] = (char) ('0' + i); |
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[574fb67] | 83 | rv = rtems_libi2c_register_bus( device_name, (rtems_libi2c_bus_t *) &mpc55xx_dspi_bus_table [i]); |
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[7495494] | 84 | RTEMS_CHECK_RV_SC( rv, device_name); |
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[574fb67] | 85 | } |
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| 86 | |
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| 87 | return RTEMS_SUCCESSFUL; |
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| 88 | } |
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| 89 | |
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| 90 | #include <stdio.h> |
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| 91 | #include <rtems/fsmount.h> |
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| 92 | #include <rtems/dosfs.h> |
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[d374492] | 93 | #include <rtems/bdpart.h> |
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[574fb67] | 94 | #include <rtems/console.h> |
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| 95 | |
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[d374492] | 96 | #include <libchip/spi-sd-card.h> |
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| 97 | |
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[574fb67] | 98 | #define MPC55XX_DEVICE "sd-card-a" |
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| 99 | #define MPC55XX_DEVICE_FILE "/dev/" MPC55XX_DEVICE |
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| 100 | #define MPC55XX_PARTITION "/dev/sd-card-a1" |
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| 101 | #define MPC55XX_MOUNT_POINT "/mnt" |
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| 102 | |
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| 103 | static fstab_t mpc55xx_fs_table [] = { { |
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| 104 | MPC55XX_PARTITION, MPC55XX_MOUNT_POINT, |
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[ac1f8fa] | 105 | "dosfs", RTEMS_FILESYSTEM_READ_WRITE, |
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[574fb67] | 106 | FSMOUNT_MNT_OK | FSMOUNT_MNTPNT_CRTERR | FSMOUNT_MNT_FAILED, |
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| 107 | FSMOUNT_MNT_OK |
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| 108 | }, { |
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| 109 | MPC55XX_DEVICE_FILE, MPC55XX_MOUNT_POINT, |
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[ac1f8fa] | 110 | "dosfs", RTEMS_FILESYSTEM_READ_WRITE, |
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[574fb67] | 111 | FSMOUNT_MNT_OK | FSMOUNT_MNTPNT_CRTERR | FSMOUNT_MNT_FAILED, |
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| 112 | 0 |
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| 113 | } |
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| 114 | }; |
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| 115 | |
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[d374492] | 116 | sd_card_driver_entry sd_card_driver_table [] = { |
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| 117 | { |
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| 118 | .device_name = "/dev/sd-card-a", |
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| 119 | .bus = 0, |
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[574fb67] | 120 | .transfer_mode = SD_CARD_TRANSFER_MODE_DEFAULT, |
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| 121 | .command = SD_CARD_COMMAND_DEFAULT, |
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| 122 | /* response : whatever, */ |
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| 123 | .response_index = SD_CARD_COMMAND_SIZE, |
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| 124 | .n_ac_max = SD_CARD_N_AC_MAX_DEFAULT, |
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| 125 | .block_number = 0, |
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| 126 | .block_size = 0, |
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| 127 | .block_size_shift = 0, |
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[d374492] | 128 | .busy = true, |
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| 129 | .verbose = true, |
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| 130 | .schedule_if_busy = false |
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[574fb67] | 131 | } |
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| 132 | }; |
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| 133 | |
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[d374492] | 134 | size_t sd_card_driver_table_size = sizeof( sd_card_driver_table) / sizeof( sd_card_driver_table [0]); |
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| 135 | |
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| 136 | rtems_status_code mpc55xx_sd_card_init( bool mount) |
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[574fb67] | 137 | { |
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| 138 | rtems_status_code sc = RTEMS_SUCCESSFUL; |
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| 139 | int rv = 0; |
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| 140 | sd_card_driver_entry *e = &sd_card_driver_table [0]; |
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| 141 | |
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[7495494] | 142 | RTEMS_DEBUG_PRINT( "Task started\n"); |
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[574fb67] | 143 | |
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| 144 | sc = mpc55xx_dspi_init(); |
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[7495494] | 145 | RTEMS_CHECK_SC( rv, "Intitalize DSPI bus"); |
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[574fb67] | 146 | |
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[d374492] | 147 | e->bus = mpc55xx_dspi_bus_table [0].bus_number; |
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[574fb67] | 148 | |
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[d374492] | 149 | sc = sd_card_register(); |
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| 150 | RTEMS_CHECK_SC( sc, "Register SD Card"); |
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[574fb67] | 151 | |
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[d374492] | 152 | if (mount) { |
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| 153 | sc = rtems_bdpart_register_from_disk( MPC55XX_DEVICE_FILE); |
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| 154 | RTEMS_CHECK_SC( sc, "Initialize IDE partition table"); |
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[574fb67] | 155 | |
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[d374492] | 156 | rv = rtems_fsmount( mpc55xx_fs_table, sizeof( mpc55xx_fs_table) / sizeof( mpc55xx_fs_table [0]), NULL); |
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| 157 | RTEMS_CHECK_RV_SC( rv, "Mount file systems"); |
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| 158 | } |
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[574fb67] | 159 | |
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| 160 | return RTEMS_SUCCESSFUL; |
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| 161 | } |
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[a762dc2] | 162 | |
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| 163 | #endif /* MPC55XX_BOARD_MPC5566EVB */ |
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