1fe8c2806Swdenk /* 2fe8c2806Swdenk * (C) Copyright 2000 3fe8c2806Swdenk * Wolfgang Denk, DENX Software Engineering, wd@denx.de. 4fe8c2806Swdenk * 5fe8c2806Swdenk * See file CREDITS for list of people who contributed to this 6fe8c2806Swdenk * project. 7fe8c2806Swdenk * 8fe8c2806Swdenk * This program is free software; you can redistribute it and/or 9fe8c2806Swdenk * modify it under the terms of the GNU General Public License as 10fe8c2806Swdenk * published by the Free Software Foundation; either version 2 of 11fe8c2806Swdenk * the License, or (at your option) any later version. 12fe8c2806Swdenk * 13fe8c2806Swdenk * This program is distributed in the hope that it will be useful, 14fe8c2806Swdenk * but WITHOUT ANY WARRANTY; without even the implied warranty of 15fe8c2806Swdenk * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16fe8c2806Swdenk * GNU General Public License for more details. 17fe8c2806Swdenk * 18fe8c2806Swdenk * You should have received a copy of the GNU General Public License 19fe8c2806Swdenk * along with this program; if not, write to the Free Software 20fe8c2806Swdenk * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 21fe8c2806Swdenk * MA 02111-1307 USA 22fe8c2806Swdenk */ 23fe8c2806Swdenk 24fe8c2806Swdenk /* 25fe8c2806Swdenk * Support for harddisk partitions. 26fe8c2806Swdenk * 27fe8c2806Swdenk * To be compatible with LinuxPPC and Apple we use the standard Apple 28fe8c2806Swdenk * SCSI disk partitioning scheme. For more information see: 29fe8c2806Swdenk * http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92 30fe8c2806Swdenk */ 31fe8c2806Swdenk 32fe8c2806Swdenk #include <common.h> 33fe8c2806Swdenk #include <command.h> 34fe8c2806Swdenk #include <ide.h> 35fe8c2806Swdenk #include "part_mac.h" 36fe8c2806Swdenk 37*2c1af9dcSStephen Warren #ifdef HAVE_BLOCK_DEVICE 38fe8c2806Swdenk 39fe8c2806Swdenk /* stdlib.h causes some compatibility problems; should fixe these! -- wd */ 40fe8c2806Swdenk #ifndef __ldiv_t_defined 41fe8c2806Swdenk typedef struct { 42fe8c2806Swdenk long int quot; /* Quotient */ 43fe8c2806Swdenk long int rem; /* Remainder */ 44fe8c2806Swdenk } ldiv_t; 45fe8c2806Swdenk extern ldiv_t ldiv (long int __numer, long int __denom); 46fe8c2806Swdenk # define __ldiv_t_defined 1 47fe8c2806Swdenk #endif 48fe8c2806Swdenk 49fe8c2806Swdenk 50fe8c2806Swdenk static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p); 51fe8c2806Swdenk static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p); 52fe8c2806Swdenk 53fe8c2806Swdenk /* 54fe8c2806Swdenk * Test for a valid MAC partition 55fe8c2806Swdenk */ 56fe8c2806Swdenk int test_part_mac (block_dev_desc_t *dev_desc) 57fe8c2806Swdenk { 5864a08a9fSBenoît Thébaudeau ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1); 5964a08a9fSBenoît Thébaudeau ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1); 60fe8c2806Swdenk ulong i, n; 61fe8c2806Swdenk 6264a08a9fSBenoît Thébaudeau if (part_mac_read_ddb (dev_desc, ddesc)) { 63fe8c2806Swdenk /* error reading Driver Desriptor Block, or no valid Signature */ 64fe8c2806Swdenk return (-1); 65fe8c2806Swdenk } 66fe8c2806Swdenk 67fe8c2806Swdenk n = 1; /* assuming at least one partition */ 68fe8c2806Swdenk for (i=1; i<=n; ++i) { 6964a08a9fSBenoît Thébaudeau if ((dev_desc->block_read(dev_desc->dev, i, 1, (ulong *)mpart) != 1) || 7064a08a9fSBenoît Thébaudeau (mpart->signature != MAC_PARTITION_MAGIC) ) { 71fe8c2806Swdenk return (-1); 72fe8c2806Swdenk } 73fe8c2806Swdenk /* update partition count */ 7464a08a9fSBenoît Thébaudeau n = mpart->map_count; 75fe8c2806Swdenk } 76fe8c2806Swdenk return (0); 77fe8c2806Swdenk } 78fe8c2806Swdenk 79fe8c2806Swdenk 80fe8c2806Swdenk void print_part_mac (block_dev_desc_t *dev_desc) 81fe8c2806Swdenk { 82fe8c2806Swdenk ulong i, n; 8364a08a9fSBenoît Thébaudeau ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1); 8464a08a9fSBenoît Thébaudeau ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1); 85fe8c2806Swdenk ldiv_t mb, gb; 86fe8c2806Swdenk 8764a08a9fSBenoît Thébaudeau if (part_mac_read_ddb (dev_desc, ddesc)) { 88fe8c2806Swdenk /* error reading Driver Desriptor Block, or no valid Signature */ 89fe8c2806Swdenk return; 90fe8c2806Swdenk } 91fe8c2806Swdenk 9264a08a9fSBenoît Thébaudeau n = ddesc->blk_count; 93fe8c2806Swdenk 9464a08a9fSBenoît Thébaudeau mb = ldiv(n, ((1024 * 1024) / ddesc->blk_size)); /* MB */ 95fe8c2806Swdenk /* round to 1 digit */ 9664a08a9fSBenoît Thébaudeau mb.rem *= 10 * ddesc->blk_size; 97fe8c2806Swdenk mb.rem += 512 * 1024; 98fe8c2806Swdenk mb.rem /= 1024 * 1024; 99fe8c2806Swdenk 100fe8c2806Swdenk gb = ldiv(10 * mb.quot + mb.rem, 10240); 101fe8c2806Swdenk gb.rem += 512; 102fe8c2806Swdenk gb.rem /= 1024; 103fe8c2806Swdenk 104fe8c2806Swdenk 105fe8c2806Swdenk printf ("Block Size=%d, Number of Blocks=%d, " 106fe8c2806Swdenk "Total Capacity: %ld.%ld MB = %ld.%ld GB\n" 107fe8c2806Swdenk "DeviceType=0x%x, DeviceId=0x%x\n\n" 108fe8c2806Swdenk " #: type name" 109fe8c2806Swdenk " length base (size)\n", 11064a08a9fSBenoît Thébaudeau ddesc->blk_size, 11164a08a9fSBenoît Thébaudeau ddesc->blk_count, 112fe8c2806Swdenk mb.quot, mb.rem, gb.quot, gb.rem, 11364a08a9fSBenoît Thébaudeau ddesc->dev_type, ddesc->dev_id 114fe8c2806Swdenk ); 115fe8c2806Swdenk 116fe8c2806Swdenk n = 1; /* assuming at least one partition */ 117fe8c2806Swdenk for (i=1; i<=n; ++i) { 118fe8c2806Swdenk ulong bytes; 119fe8c2806Swdenk char c; 120fe8c2806Swdenk 121fe8c2806Swdenk printf ("%4ld: ", i); 12264a08a9fSBenoît Thébaudeau if (dev_desc->block_read (dev_desc->dev, i, 1, (ulong *)mpart) != 1) { 123fe8c2806Swdenk printf ("** Can't read Partition Map on %d:%ld **\n", 124fe8c2806Swdenk dev_desc->dev, i); 125fe8c2806Swdenk return; 126fe8c2806Swdenk } 127fe8c2806Swdenk 12864a08a9fSBenoît Thébaudeau if (mpart->signature != MAC_PARTITION_MAGIC) { 129fe8c2806Swdenk printf ("** Bad Signature on %d:%ld - " 130fe8c2806Swdenk "expected 0x%04x, got 0x%04x\n", 13164a08a9fSBenoît Thébaudeau dev_desc->dev, i, MAC_PARTITION_MAGIC, mpart->signature); 132fe8c2806Swdenk return; 133fe8c2806Swdenk } 134fe8c2806Swdenk 135fe8c2806Swdenk /* update partition count */ 13664a08a9fSBenoît Thébaudeau n = mpart->map_count; 137fe8c2806Swdenk 138fe8c2806Swdenk c = 'k'; 13964a08a9fSBenoît Thébaudeau bytes = mpart->block_count; 14064a08a9fSBenoît Thébaudeau bytes /= (1024 / ddesc->blk_size); /* kB; assumes blk_size == 512 */ 141fe8c2806Swdenk if (bytes >= 1024) { 142fe8c2806Swdenk bytes >>= 10; 143fe8c2806Swdenk c = 'M'; 144fe8c2806Swdenk } 145fe8c2806Swdenk if (bytes >= 1024) { 146fe8c2806Swdenk bytes >>= 10; 147fe8c2806Swdenk c = 'G'; 148fe8c2806Swdenk } 149fe8c2806Swdenk 150fe8c2806Swdenk printf ("%20.32s %-18.32s %10u @ %-10u (%3ld%c)\n", 15164a08a9fSBenoît Thébaudeau mpart->type, 15264a08a9fSBenoît Thébaudeau mpart->name, 15364a08a9fSBenoît Thébaudeau mpart->block_count, 15464a08a9fSBenoît Thébaudeau mpart->start_block, 155fe8c2806Swdenk bytes, c 156fe8c2806Swdenk ); 157fe8c2806Swdenk } 158fe8c2806Swdenk 159fe8c2806Swdenk return; 160fe8c2806Swdenk } 161fe8c2806Swdenk 162fe8c2806Swdenk 163fe8c2806Swdenk /* 164fe8c2806Swdenk * Read Device Descriptor Block 165fe8c2806Swdenk */ 166fe8c2806Swdenk static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p) 167fe8c2806Swdenk { 168fe8c2806Swdenk if (dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *)ddb_p) != 1) { 169fe8c2806Swdenk printf ("** Can't read Driver Desriptor Block **\n"); 170fe8c2806Swdenk return (-1); 171fe8c2806Swdenk } 172fe8c2806Swdenk 173fe8c2806Swdenk if (ddb_p->signature != MAC_DRIVER_MAGIC) { 174fe8c2806Swdenk #if 0 175fe8c2806Swdenk printf ("** Bad Signature: expected 0x%04x, got 0x%04x\n", 176fe8c2806Swdenk MAC_DRIVER_MAGIC, ddb_p->signature); 177fe8c2806Swdenk #endif 178fe8c2806Swdenk return (-1); 179fe8c2806Swdenk } 180fe8c2806Swdenk return (0); 181fe8c2806Swdenk } 182fe8c2806Swdenk 183fe8c2806Swdenk /* 184fe8c2806Swdenk * Read Partition Descriptor Block 185fe8c2806Swdenk */ 186fe8c2806Swdenk static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p) 187fe8c2806Swdenk { 188fe8c2806Swdenk int n = 1; 189fe8c2806Swdenk 190fe8c2806Swdenk for (;;) { 191fe8c2806Swdenk /* 192fe8c2806Swdenk * We must always read the descritpor block for 193fe8c2806Swdenk * partition 1 first since this is the only way to 194fe8c2806Swdenk * know how many partitions we have. 195fe8c2806Swdenk */ 196fe8c2806Swdenk if (dev_desc->block_read (dev_desc->dev, n, 1, (ulong *)pdb_p) != 1) { 197fe8c2806Swdenk printf ("** Can't read Partition Map on %d:%d **\n", 198fe8c2806Swdenk dev_desc->dev, n); 199fe8c2806Swdenk return (-1); 200fe8c2806Swdenk } 201fe8c2806Swdenk 202fe8c2806Swdenk if (pdb_p->signature != MAC_PARTITION_MAGIC) { 203fe8c2806Swdenk printf ("** Bad Signature on %d:%d: " 204fe8c2806Swdenk "expected 0x%04x, got 0x%04x\n", 205fe8c2806Swdenk dev_desc->dev, n, MAC_PARTITION_MAGIC, pdb_p->signature); 206fe8c2806Swdenk return (-1); 207fe8c2806Swdenk } 208fe8c2806Swdenk 209fe8c2806Swdenk if (n == part) 210fe8c2806Swdenk return (0); 211fe8c2806Swdenk 212fe8c2806Swdenk if ((part < 1) || (part > pdb_p->map_count)) { 213fe8c2806Swdenk printf ("** Invalid partition %d:%d [%d:1...%d:%d only]\n", 214fe8c2806Swdenk dev_desc->dev, part, 215fe8c2806Swdenk dev_desc->dev, 216fe8c2806Swdenk dev_desc->dev, pdb_p->map_count); 217fe8c2806Swdenk return (-1); 218fe8c2806Swdenk } 219fe8c2806Swdenk 220fe8c2806Swdenk /* update partition count */ 221fe8c2806Swdenk n = part; 222fe8c2806Swdenk } 223fe8c2806Swdenk 224fe8c2806Swdenk /* NOTREACHED */ 225fe8c2806Swdenk } 226fe8c2806Swdenk 227fe8c2806Swdenk int get_partition_info_mac (block_dev_desc_t *dev_desc, int part, disk_partition_t *info) 228fe8c2806Swdenk { 22964a08a9fSBenoît Thébaudeau ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1); 23064a08a9fSBenoît Thébaudeau ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1); 231fe8c2806Swdenk 23264a08a9fSBenoît Thébaudeau if (part_mac_read_ddb (dev_desc, ddesc)) { 233fe8c2806Swdenk return (-1); 234fe8c2806Swdenk } 235fe8c2806Swdenk 23664a08a9fSBenoît Thébaudeau info->blksz = ddesc->blk_size; 237fe8c2806Swdenk 23864a08a9fSBenoît Thébaudeau if (part_mac_read_pdb (dev_desc, part, mpart)) { 239fe8c2806Swdenk return (-1); 240fe8c2806Swdenk } 241fe8c2806Swdenk 24264a08a9fSBenoît Thébaudeau info->start = mpart->start_block; 24364a08a9fSBenoît Thébaudeau info->size = mpart->block_count; 24464a08a9fSBenoît Thébaudeau memcpy (info->type, mpart->type, sizeof(info->type)); 24564a08a9fSBenoît Thébaudeau memcpy (info->name, mpart->name, sizeof(info->name)); 246fe8c2806Swdenk 247fe8c2806Swdenk return (0); 248fe8c2806Swdenk } 249fe8c2806Swdenk 250cde5c64dSJon Loeliger #endif 251