[U-Boot] [PATCH 2/4] cmd_mtdparts: use 64 bits for flash size, partition size & offset

Paul Burton
2013-09-04T14:16:57Z

This matches the 64 bit size in struct mtd_info and allows the mtdparts
command to function correctly with a flash >= 4GiB. Format specifiers
for size & offset are given the ll length, matching its use in
drivers/mtd in absence of something like inttypes.h/PRIx64.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
---
common/cmd_mtdparts.c | 54 ++++++++++++++++++++++++---------------------
include/jffs2/load_kernel.h | 6 ++---
2 files changed, 32 insertions(+), 28 deletions(-)

diff --git a/common/cmd_mtdparts.c b/common/cmd_mtdparts.c
index 3023479..453ed57 100644
--- a/common/cmd_mtdparts.c
+++ b/common/cmd_mtdparts.c
@@ -93,13 +93,13 @@
DECLARE_GLOBAL_DATA_PTR;

/* special size referring to all the remaining space in a partition */
-#define SIZE_REMAINING 0xFFFFFFFF
+#define SIZE_REMAINING (~0llu)

/* special offset value, it is used when not provided by user
*
* this value is used temporarily during parsing, later such offests
* are recalculated */
-#define OFFSET_NOT_SPECIFIED 0xFFFFFFFF
+#define OFFSET_NOT_SPECIFIED (~0llu)

/* minimum partition size */
#define MIN_PART_SIZE 4096
@@ -160,9 +160,9 @@ static int device_del(struct mtd_device *dev);
* @param retptr output pointer to next char after parse completes (output)
* @return resulting unsigned int
*/
-static unsigned long memsize_parse (const char *const ptr, const char **retptr)
+static u64 memsize_parse (const char *const ptr, const char **retptr)
{
- unsigned long ret = simple_strtoul(ptr, (char **)retptr, 0);
+ u64 ret = simple_strtoull(ptr, (char **)retptr, 0);

switch (**retptr) {
case 'G':
@@ -193,20 +193,20 @@ static unsigned long memsize_parse (const char *const ptr, const char **retptr)
* @param buf output buffer
* @param size size to be converted to string
*/
-static void memsize_format(char *buf, u32 size)
+static void memsize_format(char *buf, u64 size)
{
#define SIZE_GB ((u32)1024*1024*1024)
#define SIZE_MB ((u32)1024*1024)
#define SIZE_KB ((u32)1024)

if ((size % SIZE_GB) == 0)
- sprintf(buf, "%ug", size/SIZE_GB);
+ sprintf(buf, "%llug", size/SIZE_GB);
else if ((size % SIZE_MB) == 0)
- sprintf(buf, "%um", size/SIZE_MB);
+ sprintf(buf, "%llum", size/SIZE_MB);
else if (size % SIZE_KB == 0)
- sprintf(buf, "%uk", size/SIZE_KB);
+ sprintf(buf, "%lluk", size/SIZE_KB);
else
- sprintf(buf, "%u", size);
+ sprintf(buf, "%llu", size);
}

/**
@@ -310,6 +310,7 @@ static int part_validate_eraseblock(struct mtdids *id, struct part_info *part)
struct mtd_info *mtd = NULL;
int i, j;
ulong start;
+ u64 offset, size;

if (get_mtd_info(id->type, id->num, &mtd))
return 1;
@@ -321,14 +322,16 @@ static int part_validate_eraseblock(struct mtdids *id, struct part_info *part)
* Only one eraseregion (NAND, OneNAND or uniform NOR),
* checking for alignment is easy here
*/
- if ((unsigned long)part->offset % mtd->erasesize) {
+ offset = part->offset;
+ if (do_div(offset, mtd->erasesize)) {
printf("%s%d: partition (%s) start offset"
"alignment incorrect\n",
MTD_DEV_TYPE(id->type), id->num, part->name);
return 1;
}

- if (part->size % mtd->erasesize) {
+ size = part->size;
+ if (do_div(size, mtd->erasesize)) {
printf("%s%d: partition (%s) size alignment incorrect\n",
MTD_DEV_TYPE(id->type), id->num, part->name);
return 1;
@@ -396,7 +399,7 @@ static int part_validate(struct mtdids *id, struct part_info *part)
part->size = id->size - part->offset;

if (part->offset > id->size) {
- printf("%s: offset %08x beyond flash size %08x\n",
+ printf("%s: offset %08llx beyond flash size %08llx\n",
id->mtd_id, part->offset, id->size);
return 1;
}
@@ -579,8 +582,8 @@ static int part_add(struct mtd_device *dev, struct part_info *part)
static int part_parse(const char *const partdef, const char **ret, struct part_info **retpart)
{
struct part_info *part;
- unsigned long size;
- unsigned long offset;
+ u64 size;
+ u64 offset;
const char *name;
int name_len;
unsigned int mask_flags;
@@ -599,7 +602,7 @@ static int part_parse(const char *const partdef, const char **ret, struct part_i
} else {
size = memsize_parse(p, &p);
if (size < MIN_PART_SIZE) {
- printf("partition size too small (%lx)\n", size);
+ printf("partition size too small (%llx)\n", size);
return 1;
}
}
@@ -671,14 +674,14 @@ static int part_parse(const char *const partdef, const char **ret, struct part_i
part->auto_name = 0;
} else {
/* auto generated name in form of size at offset */
- sprintf(part->name, "0x%08lx at 0x%08lx", size, offset);
+ sprintf(part->name, "0x%08llx at 0x%08llx", size, offset);
part->auto_name = 1;
}

part->name[name_len - 1] = '\0';
INIT_LIST_HEAD(&part->link);

- debug("+ partition: name %-22s size 0x%08x offset 0x%08x mask flags %d\n",
+ debug("+ partition: name %-22s size 0x%08llx offset 0x%08llx mask flags %d\n",
part->name, part->size,
part->offset, part->mask_flags);

@@ -694,7 +697,7 @@ static int part_parse(const char *const partdef, const char **ret, struct part_i
* @param size a pointer to the size of the mtd device (output)
* @return 0 if device is valid, 1 otherwise
*/
-static int mtd_device_validate(u8 type, u8 num, u32 *size)
+static int mtd_device_validate(u8 type, u8 num, u64 *size)
{
struct mtd_info *mtd = NULL;

@@ -827,7 +830,7 @@ static int device_parse(const char *const mtd_dev, const char **ret, struct mtd_
LIST_HEAD(tmp_list);
struct list_head *entry, *n;
u16 num_parts;
- u32 offset;
+ u64 offset;
int err = 1;

debug("===device_parse===\n");
@@ -1072,7 +1075,8 @@ static int generate_mtdparts(char *buf, u32 buflen)
struct part_info *part, *prev_part;
char *p = buf;
char tmpbuf[32];
- u32 size, offset, len, part_cnt;
+ u64 size, offset;
+ u32 len, part_cnt;
u32 maxlen = buflen - 1;

debug("--- generate_mtdparts ---\n");
@@ -1271,7 +1275,7 @@ static void print_partition_table(void)

list_for_each(pentry, &dev->parts) {
part = list_entry(pentry, struct part_info, link);
- printf("%2d: %-20s0x%08x\t0x%08x\t%d\n",
+ printf("%2d: %-20s0x%08llx\t0x%08llx\t%d\n",
part_num, part->name, part->size,
part->offset, part->mask_flags);
#endif /* defined(CONFIG_CMD_MTDPARTS_SHOW_NET_SIZES) */
@@ -1298,7 +1302,7 @@ static void list_partitions(void)
if (current_mtd_dev) {
part = mtd_part_info(current_mtd_dev, current_mtd_partnum);
if (part) {
- printf("\nactive partition: %s%d,%d - (%s) 0x%08x @ 0x%08x\n",
+ printf("\nactive partition: %s%d,%d - (%s) 0x%08llx @ 0x%08llx\n",
MTD_DEV_TYPE(current_mtd_dev->id->type),
current_mtd_dev->id->num, current_mtd_partnum,
part->name, part->size, part->offset);
@@ -1398,7 +1402,7 @@ static int delete_partition(const char *id)

if (find_dev_and_part(id, &dev, &pnum, &part) == 0) {

- debug("delete_partition: device = %s%d, partition %d = (%s) 0x%08x at 0x%08x\n",
+ debug("delete_partition: device = %s%d, partition %d = (%s) 0x%08llx at 0x%08llx\n",
MTD_DEV_TYPE(dev->id->type), dev->id->num, pnum,
part->name, part->size, part->offset);

@@ -1590,7 +1594,7 @@ static int parse_mtdids(const char *const ids)
struct list_head *entry, *n;
struct mtdids *id_tmp;
u8 type, num;
- u32 size;
+ u64 size;
int ret = 1;

debug("\n---parse_mtdids---\nmtdids = %s\n\n", ids);
@@ -1664,7 +1668,7 @@ static int parse_mtdids(const char *const ids)
id->mtd_id[mtd_id_len - 1] = '\0';
INIT_LIST_HEAD(&id->link);

- debug("+ id %s%d\t%16d bytes\t%s\n",
+ debug("+ id %s%d\t%16lld bytes\t%s\n",
MTD_DEV_TYPE(id->type), id->num,
id->size, id->mtd_id);

diff --git a/include/jffs2/load_kernel.h b/include/jffs2/load_kernel.h
index e1943e5..dd0d23f 100644
--- a/include/jffs2/load_kernel.h
+++ b/include/jffs2/load_kernel.h
@@ -32,8 +32,8 @@ struct part_info {
struct list_head link;
char *name; /* partition name */
u8 auto_name; /* set to 1 for generated name */
- u32 size; /* total size of the partition */
- u32 offset; /* offset within device */
+ u64 size; /* total size of the partition */
+ u64 offset; /* offset within device */
void *jffs2_priv; /* used internaly by jffs2 */
u32 mask_flags; /* kernel MTD mask flags */
u32 sector_size; /* size of sector */
@@ -44,7 +44,7 @@ struct mtdids {
struct list_head link;
u8 type; /* device type */
u8 num; /* device number */
- u32 size; /* device size */
+ u64 size; /* device size */
char *mtd_id; /* linux kernel device id */
};

--
1.8.3.4