patch-2.4.21 linux-2.4.21/drivers/mtd/bootldr.c

• Lines: 215
• Date: 1969-12-31 16:00:00.000000000 -0800
• Orig file: linux-2.4.20/drivers/mtd/bootldr.c
• Orig date: 2001-10-04 15:14:44.000000000 -0700

diff -urN linux-2.4.20/drivers/mtd/bootldr.c linux-2.4.21/drivers/mtd/bootldr.c
@@ -1,214 +0,0 @@
-/*
- * Read flash partition table from Compaq Bootloader
- *
- * Copyright 2001 Compaq Computer Corporation.
- *
- * $Id: bootldr.c,v 1.6 2001/10/02 15:05:11 dwmw2 Exp $
- *
- * Use consistent with the GNU GPL is permitted,
- * provided that this copyright notice is
- * preserved in its entirety in all copies and derived works.
- *
- * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED,
- * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS
- * FITNESS FOR ANY PARTICULAR PURPOSE.
- *
- */
-
-/*
- * Maintainer: Jamey Hicks (jamey.hicks@compaq.com)
- */
-
-#include <linux/kernel.h>
-#include <linux/slab.h>
-
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <asm/setup.h>
-#include <linux/bootmem.h>
-
-#define FLASH_PARTITION_NAMELEN 32
-enum LFR_FLAGS {
-   LFR_SIZE_PREFIX = 1,		/* prefix data with 4-byte size */
-   LFR_PATCH_BOOTLDR = 2,	/* patch bootloader's 0th instruction */
-   LFR_KERNEL = 4,		/* add BOOTIMG_MAGIC, imgsize and VKERNEL_BASE to head of programmed region (see bootldr.c) */
-   LFR_EXPAND = 8               /* expand partition size to fit rest of flash */
-};
-
-// the tags are parsed too early to malloc or alloc_bootmem so we'll fix it
-// for now
-#define MAX_NUM_PARTITIONS 8
-typedef struct FlashRegion {
-   char name[FLASH_PARTITION_NAMELEN];
-   unsigned long base;
-   unsigned long size;
-   enum LFR_FLAGS flags;
-} FlashRegion;
-
-typedef struct BootldrFlashPartitionTable {
-  int magic; /* should be filled with 0x646c7470 (btlp) BOOTLDR_PARTITION_MAGIC */
-  int npartitions;
-  struct FlashRegion partition[8];
-} BootldrFlashPartitionTable;
-
-#define BOOTLDR_MAGIC      0x646c7462        /* btld: marks a valid bootldr image */
-#define BOOTLDR_PARTITION_MAGIC  0x646c7470  /* btlp: marks a valid bootldr partition table in params sector */
-
-#define BOOTLDR_MAGIC_OFFSET 0x20 /* offset 0x20 into the bootldr */
-#define BOOTCAP_OFFSET 0X30 /* offset 0x30 into the bootldr */
-
-#define BOOTCAP_WAKEUP	(1<<0)
-#define BOOTCAP_PARTITIONS (1<<1) /* partition table stored in params sector */
-#define BOOTCAP_PARAMS_AFTER_BOOTLDR (1<<2) /* params sector right after bootldr sector(s), else in last sector */
-
-static struct BootldrFlashPartitionTable Table;
-static struct BootldrFlashPartitionTable *partition_table = NULL;
-
-
-int parse_bootldr_partitions(struct mtd_info *master, struct mtd_partition **pparts)
-{
-	struct mtd_partition *parts;
-	int ret, retlen, i;
-	int npartitions = 0;
-	long partition_table_offset;
-	long bootmagic = 0;
-	long bootcap = 0;
-	int namelen = 0;
-
-	char *names; 
-
-#if 0
-	/* verify bootldr magic */
-	ret = master->read(master, BOOTLDR_MAGIC_OFFSET, sizeof(long), &retlen, (void *)&bootmagic);
-	if (ret) 
-		goto out;
-        if (bootmagic != BOOTLDR_MAGIC)
-                goto out;
-	/* see if bootldr supports partition tables and where to find the partition table */
-	ret = master->read(master, BOOTCAP_OFFSET, sizeof(long), &retlen, (void *)&bootcap);
-	if (ret) 
-		goto out;
-
-	if (!(bootcap & BOOTCAP_PARTITIONS))
-		goto out;
-	if (bootcap & BOOTCAP_PARAMS_AFTER_BOOTLDR)
-		partition_table_offset = master->erasesize;
-	else
-		partition_table_offset = master->size - master->erasesize;
-
-	printk(__FUNCTION__ ": partition_table_offset=%#lx\n", partition_table_offset);
-	printk(__FUNCTION__ ": ptable_addr=%#lx\n", ptable_addr);
-
-
-	/* Read the partition table */
-	partition_table = (struct BootldrFlashPartitionTable *)kmalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!partition_table)
-		return -ENOMEM;
-
-	ret = master->read(master, partition_table_offset,
-			   PAGE_SIZE, &retlen, (void *)partition_table);
-	if (ret)
-	    goto out;
-
-#endif
-	if (!partition_table)
-	    return -ENOMEM;
-
-	
-	printk(__FUNCTION__ ": magic=%#x\n", partition_table->magic);
-	printk(__FUNCTION__ ": numPartitions=%#x\n", partition_table->npartitions);
-
-
-	/* check for partition table magic number */
-	if (partition_table->magic != BOOTLDR_PARTITION_MAGIC) 
-		goto out;
-	npartitions = (partition_table->npartitions > MAX_NUM_PARTITIONS)?
-	    MAX_NUM_PARTITIONS:partition_table->npartitions;	
-
-	printk(__FUNCTION__ ": npartitions=%#x\n", npartitions);
-
-	for (i = 0; i < npartitions; i++) {
-		namelen += strlen(partition_table->partition[i].name) + 1;
-	}
-
-	parts = kmalloc(sizeof(*parts)*npartitions + namelen, GFP_KERNEL);
-	if (!parts) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	names = (char *)&parts[npartitions];
-	memset(parts, 0, sizeof(*parts)*npartitions + namelen);
-
-
-
-	// from here we use the partition table
-	for (i = 0; i < npartitions; i++) {
-                struct FlashRegion *partition = &partition_table->partition[i];
-		const char *name = partition->name;
-		parts[i].name = names;
-		names += strlen(name) + 1;
-		strcpy(parts[i].name, name);
-
-                if (partition->flags & LFR_EXPAND)
-                        parts[i].size = MTDPART_SIZ_FULL;
-                else
-                        parts[i].size = partition->size;
-		parts[i].offset = partition->base;
-		parts[i].mask_flags = 0;
-		
-		printk("        partition %s o=%x s=%x\n", 
-		       parts[i].name, parts[i].offset, parts[i].size);
-
-	}
-
-	ret = npartitions;
-	*pparts = parts;
-
- out:
-#if 0
-	if (partition_table)
-		kfree(partition_table);
-#endif
-	
-	return ret;
-}
-
-
-static int __init parse_tag_ptable(const struct tag *tag)
-{
-    char buf[128];
-    int i;
-    int j;
-    
-    partition_table = &Table;
-
-#ifdef CONFIG_DEBUG_LL    
-    sprintf(buf,"ptable: magic = = 0x%lx  npartitions= %d \n",
-	    tag->u.ptable.magic,tag->u.ptable.npartitions);
-    printascii(buf);
-    
-    for (i=0; i<tag->u.ptable.npartitions; i++){
-	sprintf(buf,"ptable: partition name = %s base= 0x%lx  size= 0x%lx flags= 0x%lx\n",
-	    (char *) (&tag->u.ptable.partition[i].name[0]),
-		tag->u.ptable.partition[i].base,
-		tag->u.ptable.partition[i].size,
-		tag->u.ptable.partition[i].flags);
-	printascii(buf);
-    }
-#endif
-
-    memcpy((void *)partition_table,(void *) (&(tag->u.ptable)),sizeof(partition_table) +
-	sizeof(struct FlashRegion)*tag->u.ptable.npartitions);
-
-    
-    return 0;
-}
-
-__tagtable(ATAG_PTABLE, parse_tag_ptable);
-
-EXPORT_SYMBOL(parse_bootldr_partitions);
-
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Compaq Computer Corporation");
-MODULE_DESCRIPTION("Parsing code for Compaq bootldr partitions");