mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 09:48:16 +00:00
e6f6f9e648
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
244 lines
6.7 KiB
C
244 lines
6.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* (C) Copyright 2001
|
|
* Denis Peter, MPL AG Switzerland, d.peter@mpl.ch.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <blk.h>
|
|
#include <command.h>
|
|
#include <part.h>
|
|
#include <asm/cache.h>
|
|
#include <asm/unaligned.h>
|
|
#include "part_iso.h"
|
|
|
|
#ifdef CONFIG_HAVE_BLOCK_DEVICE
|
|
|
|
/* #define ISO_PART_DEBUG */
|
|
|
|
#ifdef ISO_PART_DEBUG
|
|
#define PRINTF(fmt,args...) printf (fmt ,##args)
|
|
#else
|
|
#define PRINTF(fmt,args...)
|
|
#endif
|
|
|
|
/* enable this if CDs are written with the PowerPC Platform ID */
|
|
#undef CHECK_FOR_POWERPC_PLATTFORM
|
|
#define CD_SECTSIZE 2048
|
|
|
|
static unsigned char tmpbuf[CD_SECTSIZE] __aligned(ARCH_DMA_MINALIGN);
|
|
|
|
unsigned long iso_dread(struct blk_desc *block_dev, lbaint_t start,
|
|
lbaint_t blkcnt, void *buffer)
|
|
{
|
|
unsigned long ret;
|
|
|
|
if (block_dev->blksz == 512) {
|
|
/* Convert from 2048 to 512 sector size */
|
|
start *= 4;
|
|
blkcnt *= 4;
|
|
}
|
|
|
|
ret = blk_dread(block_dev, start, blkcnt, buffer);
|
|
|
|
if (block_dev->blksz == 512)
|
|
ret /= 4;
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* only boot records will be listed as valid partitions */
|
|
int part_get_info_iso_verb(struct blk_desc *dev_desc, int part_num,
|
|
struct disk_partition *info, int verb)
|
|
{
|
|
int i,offset,entry_num;
|
|
unsigned short *chksumbuf;
|
|
unsigned short chksum;
|
|
unsigned long newblkaddr,blkaddr,lastsect,bootaddr;
|
|
iso_boot_rec_t *pbr = (iso_boot_rec_t *)tmpbuf; /* boot record */
|
|
iso_pri_rec_t *ppr = (iso_pri_rec_t *)tmpbuf; /* primary desc */
|
|
iso_val_entry_t *pve = (iso_val_entry_t *)tmpbuf;
|
|
iso_init_def_entry_t *pide;
|
|
|
|
if ((dev_desc->blksz != CD_SECTSIZE) && (dev_desc->blksz != 512))
|
|
return -1;
|
|
|
|
/* the first sector (sector 0x10) must be a primary volume desc */
|
|
blkaddr=PVD_OFFSET;
|
|
if (iso_dread(dev_desc, PVD_OFFSET, 1, (ulong *)tmpbuf) != 1)
|
|
return -1;
|
|
if(ppr->desctype!=0x01) {
|
|
if(verb)
|
|
printf ("** First descriptor is NOT a primary desc on %d:%d **\n",
|
|
dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
if(strncmp((char *)ppr->stand_ident,"CD001",5)!=0) {
|
|
if(verb)
|
|
printf ("** Wrong ISO Ident: %s on %d:%d **\n",
|
|
ppr->stand_ident, dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
lastsect = le32_to_cpu(ppr->firstsek_LEpathtab1_LE);
|
|
/* assuming same block size for all entries */
|
|
info->blksz = be16_to_cpu(ppr->secsize_BE);
|
|
PRINTF(" Lastsect:%08lx\n",lastsect);
|
|
for(i=blkaddr;i<lastsect;i++) {
|
|
PRINTF("Reading block %d\n", i);
|
|
if (iso_dread(dev_desc, i, 1, (ulong *)tmpbuf) != 1)
|
|
return -1;
|
|
if(ppr->desctype==0x00)
|
|
break; /* boot entry found */
|
|
if(ppr->desctype==0xff) {
|
|
if(verb)
|
|
printf ("** No valid boot catalog found on %d:%d **\n",
|
|
dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
}
|
|
/* boot entry found */
|
|
if(strncmp(pbr->ident_str,"EL TORITO SPECIFICATION",23)!=0) {
|
|
if(verb)
|
|
printf ("** Wrong El Torito ident: %s on %d:%d **\n",
|
|
pbr->ident_str, dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
bootaddr = get_unaligned_le32(pbr->pointer);
|
|
PRINTF(" Boot Entry at: %08lX\n",bootaddr);
|
|
if (iso_dread(dev_desc, bootaddr, 1, (ulong *)tmpbuf) != 1) {
|
|
if(verb)
|
|
printf ("** Can't read Boot Entry at %lX on %d:%d **\n",
|
|
bootaddr, dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
chksum=0;
|
|
chksumbuf = (unsigned short *)tmpbuf;
|
|
for(i=0;i<0x10;i++)
|
|
chksum += le16_to_cpu(chksumbuf[i]);
|
|
if(chksum!=0) {
|
|
if(verb)
|
|
printf("** Checksum Error in booting catalog validation entry on %d:%d **\n",
|
|
dev_desc->devnum, part_num);
|
|
return (-1);
|
|
}
|
|
if((pve->key[0]!=0x55)||(pve->key[1]!=0xAA)) {
|
|
if(verb)
|
|
printf ("** Key 0x55 0xAA error on %d:%d **\n",
|
|
dev_desc->devnum, part_num);
|
|
return(-1);
|
|
}
|
|
#ifdef CHECK_FOR_POWERPC_PLATTFORM
|
|
if(pve->platform!=0x01) {
|
|
if(verb)
|
|
printf ("** No PowerPC platform CD on %d:%d **\n",
|
|
dev_desc->devnum, part_num);
|
|
return(-1);
|
|
}
|
|
#endif
|
|
/* the validation entry seems to be ok, now search the "partition" */
|
|
entry_num=1;
|
|
offset=0x20;
|
|
strcpy((char *)info->type, "U-Boot");
|
|
part_set_generic_name(dev_desc, part_num, (char *)info->name);
|
|
/* the bootcatalog (including validation Entry) is limited to 2048Bytes
|
|
* (63 boot entries + validation entry) */
|
|
while(offset<2048) {
|
|
pide=(iso_init_def_entry_t *)&tmpbuf[offset];
|
|
if ((pide->boot_ind==0x88) ||
|
|
(pide->boot_ind==0x00)) { /* Header Id for default Sections Entries */
|
|
if(entry_num==part_num) { /* part found */
|
|
goto found;
|
|
}
|
|
entry_num++; /* count partitions Entries (boot and non bootables */
|
|
offset+=0x20;
|
|
continue;
|
|
}
|
|
if ((pide->boot_ind==0x90) || /* Section Header Entry */
|
|
(pide->boot_ind==0x91) || /* Section Header Entry (last) */
|
|
(pide->boot_ind==0x44)) { /* Extension Indicator */
|
|
offset+=0x20; /* skip unused entries */
|
|
}
|
|
else {
|
|
if(verb)
|
|
printf ("** Partition %d not found on device %d **\n",
|
|
part_num, dev_desc->devnum);
|
|
return(-1);
|
|
}
|
|
}
|
|
/* if we reach this point entire sector has been
|
|
* searched w/o succsess */
|
|
if(verb)
|
|
printf ("** Partition %d not found on device %d **\n",
|
|
part_num, dev_desc->devnum);
|
|
return(-1);
|
|
found:
|
|
if(pide->boot_ind!=0x88) {
|
|
if(verb)
|
|
printf("** Partition %d is not bootable on device %d **\n",
|
|
part_num, dev_desc->devnum);
|
|
return (-1);
|
|
}
|
|
switch(pide->boot_media) {
|
|
case 0x00: /* no emulation */
|
|
info->size = get_unaligned_le16(pide->sec_cnt)>>2;
|
|
break;
|
|
case 0x01: info->size=2400>>2; break; /* 1.2MByte Floppy */
|
|
case 0x02: info->size=2880>>2; break; /* 1.44MByte Floppy */
|
|
case 0x03: info->size=5760>>2; break; /* 2.88MByte Floppy */
|
|
case 0x04: info->size=2880>>2; break; /* dummy (HD Emulation) */
|
|
default: info->size=0; break;
|
|
}
|
|
newblkaddr = get_unaligned_le32(pide->rel_block_addr);
|
|
info->start=newblkaddr;
|
|
|
|
if (dev_desc->blksz == 512) {
|
|
info->size *= 4;
|
|
info->start *= 4;
|
|
info->blksz = 512;
|
|
}
|
|
|
|
PRINTF(" part %d found @ %lx size %lx\n",part_num,info->start,info->size);
|
|
return 0;
|
|
}
|
|
|
|
static int part_get_info_iso(struct blk_desc *dev_desc, int part_num,
|
|
struct disk_partition *info)
|
|
{
|
|
return part_get_info_iso_verb(dev_desc, part_num, info, 0);
|
|
}
|
|
|
|
static void part_print_iso(struct blk_desc *dev_desc)
|
|
{
|
|
struct disk_partition info;
|
|
int i;
|
|
|
|
if (part_get_info_iso_verb(dev_desc, 1, &info, 0) == -1) {
|
|
printf("** No boot partition found on device %d **\n",
|
|
dev_desc->devnum);
|
|
return;
|
|
}
|
|
printf("Part Start Sect x Size Type\n");
|
|
i=1;
|
|
do {
|
|
printf(" %2d " LBAFU " " LBAFU " %6ld %.32s\n",
|
|
i, info.start, info.size, info.blksz, info.type);
|
|
i++;
|
|
} while (part_get_info_iso_verb(dev_desc, i, &info, 0) != -1);
|
|
}
|
|
|
|
static int part_test_iso(struct blk_desc *dev_desc)
|
|
{
|
|
struct disk_partition info;
|
|
|
|
return part_get_info_iso_verb(dev_desc, 1, &info, 0);
|
|
}
|
|
|
|
U_BOOT_PART_TYPE(iso) = {
|
|
.name = "ISO",
|
|
.part_type = PART_TYPE_ISO,
|
|
.max_entries = ISO_ENTRY_NUMBERS,
|
|
.get_info = part_get_info_iso,
|
|
.print = part_print_iso,
|
|
.test = part_test_iso,
|
|
};
|
|
#endif
|