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wdenkfe8c2802002-11-03 00:38:21 +00001/*
2 * (C) Copyright 2000
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4 *
Wolfgang Denk1a459662013-07-08 09:37:19 +02005 * SPDX-License-Identifier: GPL-2.0+
wdenkfe8c2802002-11-03 00:38:21 +00006 */
7
8/*
9 * Support for harddisk partitions.
10 *
11 * To be compatible with LinuxPPC and Apple we use the standard Apple
12 * SCSI disk partitioning scheme. For more information see:
13 * http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92
14 */
15
16#include <common.h>
17#include <command.h>
18#include <ide.h>
wdenkfe8c2802002-11-03 00:38:21 +000019#include "part_mac.h"
20
Stephen Warren2c1af9d2013-02-28 15:03:46 +000021#ifdef HAVE_BLOCK_DEVICE
wdenkfe8c2802002-11-03 00:38:21 +000022
23/* stdlib.h causes some compatibility problems; should fixe these! -- wd */
24#ifndef __ldiv_t_defined
25typedef struct {
26 long int quot; /* Quotient */
27 long int rem; /* Remainder */
28} ldiv_t;
29extern ldiv_t ldiv (long int __numer, long int __denom);
30# define __ldiv_t_defined 1
31#endif
32
33
34static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p);
35static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p);
36
37/*
38 * Test for a valid MAC partition
39 */
40int test_part_mac (block_dev_desc_t *dev_desc)
41{
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020042 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1);
43 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1);
wdenkfe8c2802002-11-03 00:38:21 +000044 ulong i, n;
45
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020046 if (part_mac_read_ddb (dev_desc, ddesc)) {
wdenkfe8c2802002-11-03 00:38:21 +000047 /* error reading Driver Desriptor Block, or no valid Signature */
48 return (-1);
49 }
50
51 n = 1; /* assuming at least one partition */
52 for (i=1; i<=n; ++i) {
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020053 if ((dev_desc->block_read(dev_desc->dev, i, 1, (ulong *)mpart) != 1) ||
54 (mpart->signature != MAC_PARTITION_MAGIC) ) {
wdenkfe8c2802002-11-03 00:38:21 +000055 return (-1);
56 }
57 /* update partition count */
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020058 n = mpart->map_count;
wdenkfe8c2802002-11-03 00:38:21 +000059 }
60 return (0);
61}
62
63
64void print_part_mac (block_dev_desc_t *dev_desc)
65{
66 ulong i, n;
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020067 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1);
68 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1);
wdenkfe8c2802002-11-03 00:38:21 +000069 ldiv_t mb, gb;
70
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020071 if (part_mac_read_ddb (dev_desc, ddesc)) {
wdenkfe8c2802002-11-03 00:38:21 +000072 /* error reading Driver Desriptor Block, or no valid Signature */
73 return;
74 }
75
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020076 n = ddesc->blk_count;
wdenkfe8c2802002-11-03 00:38:21 +000077
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020078 mb = ldiv(n, ((1024 * 1024) / ddesc->blk_size)); /* MB */
wdenkfe8c2802002-11-03 00:38:21 +000079 /* round to 1 digit */
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020080 mb.rem *= 10 * ddesc->blk_size;
wdenkfe8c2802002-11-03 00:38:21 +000081 mb.rem += 512 * 1024;
82 mb.rem /= 1024 * 1024;
83
84 gb = ldiv(10 * mb.quot + mb.rem, 10240);
85 gb.rem += 512;
86 gb.rem /= 1024;
87
88
89 printf ("Block Size=%d, Number of Blocks=%d, "
90 "Total Capacity: %ld.%ld MB = %ld.%ld GB\n"
91 "DeviceType=0x%x, DeviceId=0x%x\n\n"
92 " #: type name"
93 " length base (size)\n",
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020094 ddesc->blk_size,
95 ddesc->blk_count,
wdenkfe8c2802002-11-03 00:38:21 +000096 mb.quot, mb.rem, gb.quot, gb.rem,
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020097 ddesc->dev_type, ddesc->dev_id
wdenkfe8c2802002-11-03 00:38:21 +000098 );
99
100 n = 1; /* assuming at least one partition */
101 for (i=1; i<=n; ++i) {
102 ulong bytes;
103 char c;
104
105 printf ("%4ld: ", i);
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200106 if (dev_desc->block_read (dev_desc->dev, i, 1, (ulong *)mpart) != 1) {
wdenkfe8c2802002-11-03 00:38:21 +0000107 printf ("** Can't read Partition Map on %d:%ld **\n",
108 dev_desc->dev, i);
109 return;
110 }
111
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200112 if (mpart->signature != MAC_PARTITION_MAGIC) {
wdenkfe8c2802002-11-03 00:38:21 +0000113 printf ("** Bad Signature on %d:%ld - "
114 "expected 0x%04x, got 0x%04x\n",
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200115 dev_desc->dev, i, MAC_PARTITION_MAGIC, mpart->signature);
wdenkfe8c2802002-11-03 00:38:21 +0000116 return;
117 }
118
119 /* update partition count */
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200120 n = mpart->map_count;
wdenkfe8c2802002-11-03 00:38:21 +0000121
122 c = 'k';
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200123 bytes = mpart->block_count;
124 bytes /= (1024 / ddesc->blk_size); /* kB; assumes blk_size == 512 */
wdenkfe8c2802002-11-03 00:38:21 +0000125 if (bytes >= 1024) {
126 bytes >>= 10;
127 c = 'M';
128 }
129 if (bytes >= 1024) {
130 bytes >>= 10;
131 c = 'G';
132 }
133
134 printf ("%20.32s %-18.32s %10u @ %-10u (%3ld%c)\n",
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200135 mpart->type,
136 mpart->name,
137 mpart->block_count,
138 mpart->start_block,
wdenkfe8c2802002-11-03 00:38:21 +0000139 bytes, c
140 );
141 }
142
143 return;
144}
145
146
147/*
148 * Read Device Descriptor Block
149 */
150static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p)
151{
152 if (dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *)ddb_p) != 1) {
153 printf ("** Can't read Driver Desriptor Block **\n");
154 return (-1);
155 }
156
157 if (ddb_p->signature != MAC_DRIVER_MAGIC) {
158#if 0
159 printf ("** Bad Signature: expected 0x%04x, got 0x%04x\n",
160 MAC_DRIVER_MAGIC, ddb_p->signature);
161#endif
162 return (-1);
163 }
164 return (0);
165}
166
167/*
168 * Read Partition Descriptor Block
169 */
170static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p)
171{
172 int n = 1;
173
174 for (;;) {
175 /*
wdenk8bde7f72003-06-27 21:31:46 +0000176 * We must always read the descritpor block for
177 * partition 1 first since this is the only way to
178 * know how many partitions we have.
wdenkfe8c2802002-11-03 00:38:21 +0000179 */
180 if (dev_desc->block_read (dev_desc->dev, n, 1, (ulong *)pdb_p) != 1) {
181 printf ("** Can't read Partition Map on %d:%d **\n",
182 dev_desc->dev, n);
183 return (-1);
184 }
185
186 if (pdb_p->signature != MAC_PARTITION_MAGIC) {
187 printf ("** Bad Signature on %d:%d: "
188 "expected 0x%04x, got 0x%04x\n",
189 dev_desc->dev, n, MAC_PARTITION_MAGIC, pdb_p->signature);
190 return (-1);
191 }
192
193 if (n == part)
194 return (0);
195
196 if ((part < 1) || (part > pdb_p->map_count)) {
197 printf ("** Invalid partition %d:%d [%d:1...%d:%d only]\n",
198 dev_desc->dev, part,
199 dev_desc->dev,
200 dev_desc->dev, pdb_p->map_count);
201 return (-1);
202 }
203
204 /* update partition count */
205 n = part;
206 }
207
208 /* NOTREACHED */
209}
210
211int get_partition_info_mac (block_dev_desc_t *dev_desc, int part, disk_partition_t *info)
212{
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200213 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1);
214 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1);
wdenkfe8c2802002-11-03 00:38:21 +0000215
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200216 if (part_mac_read_ddb (dev_desc, ddesc)) {
wdenkfe8c2802002-11-03 00:38:21 +0000217 return (-1);
218 }
219
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200220 info->blksz = ddesc->blk_size;
wdenkfe8c2802002-11-03 00:38:21 +0000221
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200222 if (part_mac_read_pdb (dev_desc, part, mpart)) {
wdenkfe8c2802002-11-03 00:38:21 +0000223 return (-1);
224 }
225
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200226 info->start = mpart->start_block;
227 info->size = mpart->block_count;
228 memcpy (info->type, mpart->type, sizeof(info->type));
229 memcpy (info->name, mpart->name, sizeof(info->name));
wdenkfe8c2802002-11-03 00:38:21 +0000230
231 return (0);
232}
233
Jon Loeligercde5c642007-07-09 17:22:37 -0500234#endif