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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>
Simon Glasscf92e052015-09-02 17:24:58 -060018#include <memalign.h>
wdenkfe8c2802002-11-03 00:38:21 +000019#include <ide.h>
wdenkfe8c2802002-11-03 00:38:21 +000020#include "part_mac.h"
21
Stephen Warren2c1af9d2013-02-28 15:03:46 +000022#ifdef HAVE_BLOCK_DEVICE
wdenkfe8c2802002-11-03 00:38:21 +000023
24/* stdlib.h causes some compatibility problems; should fixe these! -- wd */
25#ifndef __ldiv_t_defined
26typedef struct {
27 long int quot; /* Quotient */
28 long int rem; /* Remainder */
29} ldiv_t;
30extern ldiv_t ldiv (long int __numer, long int __denom);
31# define __ldiv_t_defined 1
32#endif
33
34
35static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p);
36static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p);
37
38/*
39 * Test for a valid MAC partition
40 */
41int test_part_mac (block_dev_desc_t *dev_desc)
42{
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020043 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1);
44 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1);
wdenkfe8c2802002-11-03 00:38:21 +000045 ulong i, n;
46
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020047 if (part_mac_read_ddb (dev_desc, ddesc)) {
wdenkfe8c2802002-11-03 00:38:21 +000048 /* error reading Driver Desriptor Block, or no valid Signature */
49 return (-1);
50 }
51
52 n = 1; /* assuming at least one partition */
53 for (i=1; i<=n; ++i) {
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020054 if ((dev_desc->block_read(dev_desc->dev, i, 1, (ulong *)mpart) != 1) ||
55 (mpart->signature != MAC_PARTITION_MAGIC) ) {
wdenkfe8c2802002-11-03 00:38:21 +000056 return (-1);
57 }
58 /* update partition count */
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020059 n = mpart->map_count;
wdenkfe8c2802002-11-03 00:38:21 +000060 }
61 return (0);
62}
63
64
65void print_part_mac (block_dev_desc_t *dev_desc)
66{
67 ulong i, n;
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020068 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1);
69 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1);
wdenkfe8c2802002-11-03 00:38:21 +000070 ldiv_t mb, gb;
71
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020072 if (part_mac_read_ddb (dev_desc, ddesc)) {
wdenkfe8c2802002-11-03 00:38:21 +000073 /* error reading Driver Desriptor Block, or no valid Signature */
74 return;
75 }
76
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020077 n = ddesc->blk_count;
wdenkfe8c2802002-11-03 00:38:21 +000078
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020079 mb = ldiv(n, ((1024 * 1024) / ddesc->blk_size)); /* MB */
wdenkfe8c2802002-11-03 00:38:21 +000080 /* round to 1 digit */
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020081 mb.rem *= 10 * ddesc->blk_size;
wdenkfe8c2802002-11-03 00:38:21 +000082 mb.rem += 512 * 1024;
83 mb.rem /= 1024 * 1024;
84
85 gb = ldiv(10 * mb.quot + mb.rem, 10240);
86 gb.rem += 512;
87 gb.rem /= 1024;
88
89
90 printf ("Block Size=%d, Number of Blocks=%d, "
91 "Total Capacity: %ld.%ld MB = %ld.%ld GB\n"
92 "DeviceType=0x%x, DeviceId=0x%x\n\n"
93 " #: type name"
94 " length base (size)\n",
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020095 ddesc->blk_size,
96 ddesc->blk_count,
wdenkfe8c2802002-11-03 00:38:21 +000097 mb.quot, mb.rem, gb.quot, gb.rem,
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +020098 ddesc->dev_type, ddesc->dev_id
wdenkfe8c2802002-11-03 00:38:21 +000099 );
100
101 n = 1; /* assuming at least one partition */
102 for (i=1; i<=n; ++i) {
103 ulong bytes;
104 char c;
105
106 printf ("%4ld: ", i);
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200107 if (dev_desc->block_read (dev_desc->dev, i, 1, (ulong *)mpart) != 1) {
wdenkfe8c2802002-11-03 00:38:21 +0000108 printf ("** Can't read Partition Map on %d:%ld **\n",
109 dev_desc->dev, i);
110 return;
111 }
112
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200113 if (mpart->signature != MAC_PARTITION_MAGIC) {
wdenkfe8c2802002-11-03 00:38:21 +0000114 printf ("** Bad Signature on %d:%ld - "
115 "expected 0x%04x, got 0x%04x\n",
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200116 dev_desc->dev, i, MAC_PARTITION_MAGIC, mpart->signature);
wdenkfe8c2802002-11-03 00:38:21 +0000117 return;
118 }
119
120 /* update partition count */
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200121 n = mpart->map_count;
wdenkfe8c2802002-11-03 00:38:21 +0000122
123 c = 'k';
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200124 bytes = mpart->block_count;
125 bytes /= (1024 / ddesc->blk_size); /* kB; assumes blk_size == 512 */
wdenkfe8c2802002-11-03 00:38:21 +0000126 if (bytes >= 1024) {
127 bytes >>= 10;
128 c = 'M';
129 }
130 if (bytes >= 1024) {
131 bytes >>= 10;
132 c = 'G';
133 }
134
135 printf ("%20.32s %-18.32s %10u @ %-10u (%3ld%c)\n",
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200136 mpart->type,
137 mpart->name,
138 mpart->block_count,
139 mpart->start_block,
wdenkfe8c2802002-11-03 00:38:21 +0000140 bytes, c
141 );
142 }
143
144 return;
145}
146
147
148/*
149 * Read Device Descriptor Block
150 */
151static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p)
152{
153 if (dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *)ddb_p) != 1) {
154 printf ("** Can't read Driver Desriptor Block **\n");
155 return (-1);
156 }
157
158 if (ddb_p->signature != MAC_DRIVER_MAGIC) {
159#if 0
160 printf ("** Bad Signature: expected 0x%04x, got 0x%04x\n",
161 MAC_DRIVER_MAGIC, ddb_p->signature);
162#endif
163 return (-1);
164 }
165 return (0);
166}
167
168/*
169 * Read Partition Descriptor Block
170 */
171static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p)
172{
173 int n = 1;
174
175 for (;;) {
176 /*
wdenk8bde7f72003-06-27 21:31:46 +0000177 * We must always read the descritpor block for
178 * partition 1 first since this is the only way to
179 * know how many partitions we have.
wdenkfe8c2802002-11-03 00:38:21 +0000180 */
181 if (dev_desc->block_read (dev_desc->dev, n, 1, (ulong *)pdb_p) != 1) {
182 printf ("** Can't read Partition Map on %d:%d **\n",
183 dev_desc->dev, n);
184 return (-1);
185 }
186
187 if (pdb_p->signature != MAC_PARTITION_MAGIC) {
188 printf ("** Bad Signature on %d:%d: "
189 "expected 0x%04x, got 0x%04x\n",
190 dev_desc->dev, n, MAC_PARTITION_MAGIC, pdb_p->signature);
191 return (-1);
192 }
193
194 if (n == part)
195 return (0);
196
197 if ((part < 1) || (part > pdb_p->map_count)) {
198 printf ("** Invalid partition %d:%d [%d:1...%d:%d only]\n",
199 dev_desc->dev, part,
200 dev_desc->dev,
201 dev_desc->dev, pdb_p->map_count);
202 return (-1);
203 }
204
205 /* update partition count */
206 n = part;
207 }
208
209 /* NOTREACHED */
210}
211
212int get_partition_info_mac (block_dev_desc_t *dev_desc, int part, disk_partition_t *info)
213{
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200214 ALLOC_CACHE_ALIGN_BUFFER(mac_driver_desc_t, ddesc, 1);
215 ALLOC_CACHE_ALIGN_BUFFER(mac_partition_t, mpart, 1);
wdenkfe8c2802002-11-03 00:38:21 +0000216
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200217 if (part_mac_read_ddb (dev_desc, ddesc)) {
wdenkfe8c2802002-11-03 00:38:21 +0000218 return (-1);
219 }
220
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200221 info->blksz = ddesc->blk_size;
wdenkfe8c2802002-11-03 00:38:21 +0000222
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200223 if (part_mac_read_pdb (dev_desc, part, mpart)) {
wdenkfe8c2802002-11-03 00:38:21 +0000224 return (-1);
225 }
226
Benoît Thébaudeau64a08a92012-07-13 21:31:03 +0200227 info->start = mpart->start_block;
228 info->size = mpart->block_count;
229 memcpy (info->type, mpart->type, sizeof(info->type));
230 memcpy (info->name, mpart->name, sizeof(info->name));
wdenkfe8c2802002-11-03 00:38:21 +0000231
232 return (0);
233}
234
Jon Loeligercde5c642007-07-09 17:22:37 -0500235#endif