Initial revision

3 files changed, 580 insertions, 0 deletions

diff --git a/disk/part_dos.c b/disk/part_dos.c
new file mode 100644
index 0000000..8e71baa
--- /dev/null
+++ b/disk/part_dos.c
@@ -0,0 +1,233 @@
+/*
+ * (C) Copyright 2001
+ * Raymond Lo, lo@routefree.com
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Support for harddisk partitions.
+ *
+ * To be compatible with LinuxPPC and Apple we use the standard Apple
+ * SCSI disk partitioning scheme. For more information see:
+ * http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92
+ */
+
+#include <common.h>
+#include <command.h>
+#include <ide.h>
+#include <cmd_disk.h>
+#include "part_dos.h"
+
+#if ((CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI)) && defined(CONFIG_DOS_PARTITION)
+
+/* Convert char[4] in little endian format to the host format integer
+ */
+static inline int le32_to_int(unsigned char *le32)
+{
+    return ((le32[3] << 24) +
+	    (le32[2] << 16) +
+	    (le32[1] << 8) +
+	     le32[0]
+	   );
+}
+
+static inline int is_extended(int part_type)
+{
+    return (part_type == 0x5 ||
+	    part_type == 0xf ||
+	    part_type == 0x85);
+}
+
+static void print_one_part (dos_partition_t *p, int ext_part_sector, int part_num)
+{
+	int lba_start = ext_part_sector + le32_to_int (p->start4);
+	int lba_size  = le32_to_int (p->size4);
+
+	printf ("%5d\t\t%10d\t%10d\t%2x%s\n",
+		part_num, lba_start, lba_size, p->sys_ind,
+		(is_extended (p->sys_ind) ? " Extd" : ""));
+}
+
+
+
+int test_part_dos (block_dev_desc_t *dev_desc)
+{
+	unsigned char buffer[DEFAULT_SECTOR_SIZE];
+
+	if ((dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *) buffer) != 1) ||
+	    (buffer[DOS_PART_MAGIC_OFFSET + 0] != 0x55) ||
+	    (buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) ) {
+	    	return (-1);
+	}
+	return (0);
+}
+
+/*  Print a partition that is relative to its Extended partition table
+ */
+static void print_partition_extended (block_dev_desc_t *dev_desc, int ext_part_sector, int relative,
+							   int part_num)
+{
+	unsigned char buffer[DEFAULT_SECTOR_SIZE];
+	dos_partition_t *pt;
+	int i;
+
+	if (dev_desc->block_read(dev_desc->dev, ext_part_sector, 1, (ulong *) buffer) != 1) {
+		printf ("** Can't read partition table on %d:%d **\n",
+			dev_desc->dev, ext_part_sector);
+		return;
+	}
+	if (buffer[DOS_PART_MAGIC_OFFSET] != 0x55 ||
+		buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) {
+		printf ("bad MBR sector signature 0x%02x%02x\n",
+			buffer[DOS_PART_MAGIC_OFFSET],
+			buffer[DOS_PART_MAGIC_OFFSET + 1]);
+		return;
+	}
+
+	/* Print all primary/logical partitions */
+	pt = (dos_partition_t *) (buffer + DOS_PART_TBL_OFFSET);
+	for (i = 0; i < 4; i++, pt++) {
+		/*
+                 * fdisk does not show the extended partitions that
+		 * are not in the MBR
+		 */
+
+		if ((pt->sys_ind != 0) &&
+		    (ext_part_sector == 0 || !is_extended (pt->sys_ind)) ) {
+			print_one_part (pt, ext_part_sector, part_num);
+		}
+
+		/* Reverse engr the fdisk part# assignment rule! */
+		if ((ext_part_sector == 0) ||
+		    (pt->sys_ind != 0 && !is_extended (pt->sys_ind)) ) {
+			part_num++;
+		}
+	}
+
+	/* Follows the extended partitions */
+	pt = (dos_partition_t *) (buffer + DOS_PART_TBL_OFFSET);
+	for (i = 0; i < 4; i++, pt++) {
+		if (is_extended (pt->sys_ind)) {
+			int lba_start = le32_to_int (pt->start4) + relative;
+
+			print_partition_extended (dev_desc, lba_start,
+						  ext_part_sector == 0  ? lba_start
+									: relative,
+						  part_num);
+		}
+	}
+
+	return;
+}
+
+
+/*  Print a partition that is relative to its Extended partition table
+ */
+static int get_partition_info_extended (block_dev_desc_t *dev_desc, int ext_part_sector,
+				 int relative, int part_num,
+				 int which_part, disk_partition_t *info)
+{
+	unsigned char buffer[DEFAULT_SECTOR_SIZE];
+	dos_partition_t *pt;
+	int i;
+
+	if (dev_desc->block_read (dev_desc->dev, ext_part_sector, 1, (ulong *) buffer) != 1) {
+		printf ("** Can't read partition table on %d:%d **\n",
+			dev_desc->dev, ext_part_sector);
+		return -1;
+	}
+	if (buffer[DOS_PART_MAGIC_OFFSET] != 0x55 ||
+		buffer[DOS_PART_MAGIC_OFFSET + 1] != 0xaa) {
+		printf ("bad MBR sector signature 0x%02x%02x\n",
+			buffer[DOS_PART_MAGIC_OFFSET],
+			buffer[DOS_PART_MAGIC_OFFSET + 1]);
+		return -1;
+	}
+
+	/* Print all primary/logical partitions */
+	pt = (dos_partition_t *) (buffer + DOS_PART_TBL_OFFSET);
+	for (i = 0; i < 4; i++, pt++) {
+		/*
+                 * fdisk does not show the extended partitions that
+                 * are not in the MBR
+		 */
+		if (pt->sys_ind != 0 && part_num == which_part) {
+			info->blksz = 512;
+			info->start = ext_part_sector + le32_to_int (pt->start4);
+			info->size  = le32_to_int (pt->size4);
+			switch(dev_desc->if_type) {
+				case IF_TYPE_IDE:
+				case IF_TYPE_ATAPI:
+					sprintf (info->name, "hd%c%d\n", 'a' + dev_desc->dev, part_num);
+					break;
+				case IF_TYPE_SCSI:
+					sprintf (info->name, "sd%c%d\n", 'a' + dev_desc->dev, part_num);
+					break;
+				case IF_TYPE_USB:
+					sprintf (info->name, "usbd%c%d\n", 'a' + dev_desc->dev, part_num);
+					break;
+				case IF_TYPE_DOC:
+					sprintf (info->name, "docd%c%d\n", 'a' + dev_desc->dev, part_num);
+					break;
+				default:
+					sprintf (info->name, "xx%c%d\n", 'a' + dev_desc->dev, part_num);
+					break;
+			}
+			/* sprintf(info->type, "%d, pt->sys_ind); */
+			sprintf (info->type, "U-Boot");
+			return 0;
+		}
+
+		/* Reverse engr the fdisk part# assignment rule! */
+		if ((ext_part_sector == 0) ||
+		    (pt->sys_ind != 0 && !is_extended (pt->sys_ind)) ) {
+			part_num++;
+		}
+	}
+
+	/* Follows the extended partitions */
+	pt = (dos_partition_t *) (buffer + DOS_PART_TBL_OFFSET);
+	for (i = 0; i < 4; i++, pt++) {
+		if (is_extended (pt->sys_ind)) {
+			int lba_start = le32_to_int (pt->start4) + relative;
+
+			return get_partition_info_extended (dev_desc, lba_start,
+				 ext_part_sector == 0 ? lba_start : relative,
+				 part_num, which_part, info);
+		}
+	}
+	return -1;
+}
+
+void print_part_dos (block_dev_desc_t *dev_desc)
+{
+	printf ("Partition     Start Sector     Num Sectors     Type\n");
+	print_partition_extended (dev_desc, 0, 0, 1);
+}
+
+int get_partition_info_dos (block_dev_desc_t *dev_desc, int part, disk_partition_t * info)
+{
+	return get_partition_info_extended (dev_desc, 0, 0, 1, part, info);
+}
+
+
+
+#endif	/* (CONFIG_COMMANDS & CFG_CMD_IDE) && CONFIG_DOS_PARTITION */
diff --git a/disk/part_mac.c b/disk/part_mac.c
new file mode 100644
index 0000000..ee9d170
--- /dev/null
+++ b/disk/part_mac.c
@@ -0,0 +1,251 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * Support for harddisk partitions.
+ *
+ * To be compatible with LinuxPPC and Apple we use the standard Apple
+ * SCSI disk partitioning scheme. For more information see:
+ * http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92
+ */
+
+#include <common.h>
+#include <command.h>
+#include <ide.h>
+#include <cmd_disk.h>
+#include "part_mac.h"
+
+#if ((CONFIG_COMMANDS & CFG_CMD_IDE) || (CONFIG_COMMANDS & CFG_CMD_SCSI)) && defined(CONFIG_MAC_PARTITION)
+
+/* stdlib.h causes some compatibility problems; should fixe these! -- wd */
+#ifndef __ldiv_t_defined
+typedef struct {
+	long int quot;		/* Quotient	*/
+	long int rem;		/* Remainder	*/
+} ldiv_t;
+extern ldiv_t ldiv (long int __numer, long int __denom);
+# define __ldiv_t_defined	1
+#endif
+
+
+static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p);
+static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p);
+
+/*
+ * Test for a valid MAC partition
+ */
+int test_part_mac (block_dev_desc_t *dev_desc)
+{
+	mac_driver_desc_t	ddesc;
+	mac_partition_t		mpart;
+	ulong i, n;
+
+	if (part_mac_read_ddb (dev_desc, &ddesc)) {
+		/* error reading Driver Desriptor Block, or no valid Signature */
+		return (-1);
+	}
+
+	n = 1;	/* assuming at least one partition */
+	for (i=1; i<=n; ++i) {
+		if ((dev_desc->block_read(dev_desc->dev, i, 1, (ulong *)&mpart) != 1) ||
+		    (mpart.signature != MAC_PARTITION_MAGIC) ) {
+			return (-1);
+		}
+		/* update partition count */
+		n = mpart.map_count;
+	}
+	return (0);
+}
+
+
+void print_part_mac (block_dev_desc_t *dev_desc)
+{
+	ulong i, n;
+	mac_driver_desc_t	ddesc;
+	mac_partition_t		mpart;
+	ldiv_t mb, gb;
+
+	if (part_mac_read_ddb (dev_desc, &ddesc)) {
+		/* error reading Driver Desriptor Block, or no valid Signature */
+		return;
+	}
+
+	n  = ddesc.blk_count;
+
+	mb = ldiv(n, ((1024 * 1024) / ddesc.blk_size)); /* MB */
+	/* round to 1 digit */
+	mb.rem *= 10 * ddesc.blk_size;
+	mb.rem += 512 * 1024;
+	mb.rem /= 1024 * 1024;
+
+	gb = ldiv(10 * mb.quot + mb.rem, 10240);
+	gb.rem += 512;
+	gb.rem /= 1024;
+
+
+	printf ("Block Size=%d, Number of Blocks=%d, "
+		"Total Capacity: %ld.%ld MB = %ld.%ld GB\n"
+		"DeviceType=0x%x, DeviceId=0x%x\n\n"
+		"   #:                 type name"
+		"                   length   base       (size)\n",
+		ddesc.blk_size,
+		ddesc.blk_count,
+		mb.quot, mb.rem, gb.quot, gb.rem,
+		ddesc.dev_type, ddesc.dev_id
+		);
+
+	n = 1;	/* assuming at least one partition */
+	for (i=1; i<=n; ++i) {
+		ulong bytes;
+		char c;
+
+		printf ("%4ld: ", i);
+		if (dev_desc->block_read (dev_desc->dev, i, 1, (ulong *)&mpart) != 1) {
+			printf ("** Can't read Partition Map on %d:%ld **\n",
+				dev_desc->dev, i);
+			return;
+		}
+
+		if (mpart.signature != MAC_PARTITION_MAGIC) {
+			printf ("** Bad Signature on %d:%ld - "
+				"expected 0x%04x, got 0x%04x\n",
+				dev_desc->dev, i, MAC_PARTITION_MAGIC, mpart.signature);
+			return;
+		}
+
+		/* update partition count */
+		n = mpart.map_count;
+
+		c      = 'k';
+		bytes  = mpart.block_count;
+		bytes /= (1024 / ddesc.blk_size);  /* kB; assumes blk_size == 512 */
+		if (bytes >= 1024) {
+			bytes >>= 10;
+			c = 'M';
+		}
+		if (bytes >= 1024) {
+			bytes >>= 10;
+			c = 'G';
+		}
+
+		printf ("%20.32s %-18.32s %10u @ %-10u (%3ld%c)\n",
+			mpart.type,
+			mpart.name,
+			mpart.block_count,
+			mpart.start_block,
+			bytes, c
+			);
+	}
+
+	return;
+}
+
+
+/*
+ * Read Device Descriptor Block
+ */
+static int part_mac_read_ddb (block_dev_desc_t *dev_desc, mac_driver_desc_t *ddb_p)
+{
+	if (dev_desc->block_read(dev_desc->dev, 0, 1, (ulong *)ddb_p) != 1) {
+		printf ("** Can't read Driver Desriptor Block **\n");
+		return (-1);
+	}
+
+	if (ddb_p->signature != MAC_DRIVER_MAGIC) {
+#if 0
+		printf ("** Bad Signature: expected 0x%04x, got 0x%04x\n",
+			MAC_DRIVER_MAGIC, ddb_p->signature);
+#endif
+		return (-1);
+	}
+	return (0);
+}
+
+/*
+ * Read Partition Descriptor Block
+ */
+static int part_mac_read_pdb (block_dev_desc_t *dev_desc, int part, mac_partition_t *pdb_p)
+{
+	int n = 1;
+
+	for (;;) {
+		/*
+                 * We must always read the descritpor block for
+                 * partition 1 first since this is the only way to
+                 * know how many partitions we have.
+		 */
+		if (dev_desc->block_read (dev_desc->dev, n, 1, (ulong *)pdb_p) != 1) {
+			printf ("** Can't read Partition Map on %d:%d **\n",
+				dev_desc->dev, n);
+			return (-1);
+		}
+
+		if (pdb_p->signature != MAC_PARTITION_MAGIC) {
+			printf ("** Bad Signature on %d:%d: "
+				"expected 0x%04x, got 0x%04x\n",
+				dev_desc->dev, n, MAC_PARTITION_MAGIC, pdb_p->signature);
+			return (-1);
+		}
+
+		if (n == part)
+			return (0);
+
+		if ((part < 1) || (part > pdb_p->map_count)) {
+			printf ("** Invalid partition %d:%d [%d:1...%d:%d only]\n",
+				dev_desc->dev, part,
+				dev_desc->dev,
+				dev_desc->dev, pdb_p->map_count);
+			return (-1);
+		}
+
+		/* update partition count */
+		n = part;
+	}
+
+	/* NOTREACHED */
+}
+
+int get_partition_info_mac (block_dev_desc_t *dev_desc, int part, disk_partition_t *info)
+{
+	mac_driver_desc_t	ddesc;
+	mac_partition_t		mpart;
+
+	if (part_mac_read_ddb (dev_desc, &ddesc)) {
+		return (-1);
+	}
+
+	info->blksz = ddesc.blk_size;
+
+	if (part_mac_read_pdb (dev_desc, part, &mpart)) {
+		return (-1);
+	}
+
+	info->start = mpart.start_block;
+	info->size  = mpart.block_count;
+	memcpy (info->type, mpart.type, sizeof(info->type));
+	memcpy (info->name, mpart.name, sizeof(info->name));
+
+	return (0);
+}
+
+#endif	/* (CONFIG_COMMANDS & CFG_CMD_IDE) && CONFIG_MAC_PARTITION */
diff --git a/disk/part_mac.h b/disk/part_mac.h
new file mode 100644
index 0000000..0340fe8
--- /dev/null
+++ b/disk/part_mac.h
@@ -0,0 +1,96 @@
+/*
+ * (C) Copyright 2000
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+/*
+ * See also Linux sources, fs/partitions/mac.h
+ *
+ * This file describes structures and values related to the standard
+ * Apple SCSI disk partitioning scheme. For more information see:
+ * http://developer.apple.com/techpubs/mac/Devices/Devices-126.html#MARKER-14-92
+ */
+
+#ifndef	_DISK_PART_MAC_H
+#define	_DISK_PART_MAC_H
+
+#define MAC_DRIVER_MAGIC	0x4552
+
+/*
+ * Driver Descriptor Structure, in block 0.
+ * This block is (and shall remain) 512 bytes long.
+ * Note that there is an alignment problem for the driver descriptor map!
+ */
+typedef struct mac_driver_desc {
+	__u16	signature;	/* expected to be MAC_DRIVER_MAGIC	*/
+	__u16	blk_size;	/* block size of device			*/
+	__u32	blk_count;	/* number of blocks on device		*/
+	__u16	dev_type;	/* device type				*/
+	__u16	dev_id;		/* device id				*/
+	__u32	data;		/* reserved				*/
+	__u16	drvr_cnt;	/* number of driver descriptor entries	*/
+	__u16	drvr_map[247];	/* driver descriptor map		*/
+} mac_driver_desc_t;
+
+/*
+ * Device Driver Entry
+ * (Cannot be included in mac_driver_desc because of alignment problems)
+ */
+typedef struct mac_driver_entry {
+	__u32	block;		/* block number of starting block	*/
+	__u16	size;		/* size of driver, in 512 byte blocks	*/
+	__u16	type;		/* OS Type				*/
+} mac_driver_entry_t;
+
+
+#define MAC_PARTITION_MAGIC	0x504d
+
+/* type field value for A/UX or other Unix partitions */
+#define APPLE_AUX_TYPE	"Apple_UNIX_SVR2"
+
+/*
+ * Each Partition Map entry (in blocks 1 ... N) has this format:
+ */
+typedef struct mac_partition {
+	__u16	signature;	/* expected to be MAC_PARTITION_MAGIC	*/
+	__u16	sig_pad;	/* reserved				*/
+	__u32	map_count;	/* # blocks in partition map		*/
+	__u32	start_block;	/* abs. starting block # of partition	*/
+	__u32	block_count;	/* number of blocks in partition	*/
+	uchar	name[32];	/* partition name			*/
+	uchar	type[32];	/* string type description		*/
+	__u32	data_start;	/* rel block # of first data block	*/
+	__u32	data_count;	/* number of data blocks		*/
+	__u32	status;		/* partition status bits		*/
+	__u32	boot_start;	/* first block of boot code		*/
+	__u32	boot_size;	/* size of boot code, in bytes		*/
+	__u32	boot_load;	/* boot code load address		*/
+	__u32	boot_load2;	/* reserved				*/
+	__u32	boot_entry;	/* boot code entry point		*/
+	__u32	boot_entry2;	/* reserved				*/
+	__u32	boot_cksum;	/* boot code checksum			*/
+	uchar	processor[16];	/* Type of Processor			*/
+	__u16	part_pad[188];	/* reserved				*/
+} mac_partition_t;
+
+#define MAC_STATUS_BOOTABLE	8	/* partition is bootable */
+
+#endif	/* _DISK_PART_MAC_H */