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firmware-utils/ptgen: allow explicit placement of partitions

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For Banana Pi R2 we need to place the U-Boot partition at precisely 0x50000.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
This commit is contained in:
David Woodhouse 2020-06-13 23:39:15 +01:00 committed by Petr Štetiar
parent c07d0d7f3e
commit dca867c5a3
1 changed files with 27 additions and 3 deletions
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30
tools/firmware-utils/src/ptgen.c
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@ -106,6 +106,7 @@ struct pte {
};
struct partinfo {
unsigned long start;
unsigned long size;
int type;
};
@ -290,8 +291,16 @@ static int gen_ptable(uint32_t signature, int nr)
pte[i].type = parts[i].type;
start = sect + sectors;
if (kb_align != 0)
if (parts[i].start != 0) {
if (parts[i].start * 2 < start) {
fprintf(stderr, "Invalid start %ld for partition %d!\n",
parts[i].start, i);
return ret;
}
start = parts[i].start * 2;
} else if (kb_align != 0) {
start = round_to_kb(start);
}
pte[i].start = cpu_to_le32(start);
sect = start + parts[i].size * 2;
@ -369,8 +378,16 @@ static int gen_gptable(uint32_t signature, guid_t guid, unsigned nr)
return ret;
}
start = sect + sectors;
if (kb_align != 0)
if (parts[i].start != 0) {
if (parts[i].start * 2 < start) {
fprintf(stderr, "Invalid start %ld for partition %d!\n",
parts[i].start, i);
return ret;
}
start = parts[i].start * 2;
} else if (kb_align != 0) {
start = round_to_kb(start);
}
gpte[i].start = cpu_to_le64(start);
sect = start + parts[i].size * 2;
@ -481,13 +498,14 @@ fail:
static void usage(char *prog)
{
fprintf(stderr, "Usage: %s [-v] [-n] [-g] -h <heads> -s <sectors> -o <outputfile> [-a 0..4] [-l <align kB>] [-G <guid>] [[-t <type>] -p <size>...] \n", prog);
fprintf(stderr, "Usage: %s [-v] [-n] [-g] -h <heads> -s <sectors> -o <outputfile> [-a 0..4] [-l <align kB>] [-G <guid>] [[-t <type>] -p <size>[@<start>]...] \n", prog);
exit(EXIT_FAILURE);
}
int main (int argc, char **argv)
{
unsigned char type = 0x83;
char *p;
int ch;
int part = 0;
uint32_t signature = 0x5452574F; /* 'OWRT' */
@ -519,7 +537,13 @@ int main (int argc, char **argv)
fputs("Too many partitions\n", stderr);
exit(EXIT_FAILURE);
}
p = strchr(optarg, '@');
if (p) {
*(p++) = 0;
parts[part].start = to_kbytes(p);
}
parts[part].size = to_kbytes(optarg);
fprintf(stderr, "part %ld %ld\n", parts[part].start, parts[part].size);
parts[part++].type = type;
break;
case 't':