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dfu, nand, ubi: add partubi alt settings for updating ubi partition

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updating an ubi partition needs a completely erased mtd partition,
see:
http://lists.infradead.org/pipermail/linux-mtd/2011-May/035416.html

So, add partubi alt setting for the dfu_alt_info environment
variable to mark this partition as an ubi partition. In case we
update an ubi partition, we erase after flashing the image into the
partition, the remaining sektors.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Pantelis Antoniou <panto@antoniou-consulting.com>
Cc: Tom Rini <trini@ti.com>
Cc: Lukasz Majewski <l.majewski@samsung.com>
Cc: Kyungmin Park <kyungmin.park@samsung.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Wolfgang Denk <wd@denx.de>
Cc: Scott Wood <scottwood@freescale.com>
This commit is contained in:
Heiko Schocher 2013-07-25 06:43:11 +02:00 committed by Marek Vasut
parent eaf3e613ea
commit 815c30b2b6
2 changed files with 38 additions and 2 deletions
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38
drivers/dfu/dfu_nand.c
View file

@ -136,11 +136,43 @@ static int dfu_read_medium_nand(struct dfu_entity *dfu, u64 offset, void *buf,
return ret;
}
static int dfu_flush_medium_nand(struct dfu_entity *dfu)
{
int ret = 0;
/* in case of ubi partition, erase rest of the partition */
if (dfu->data.nand.ubi) {
nand_info_t *nand;
nand_erase_options_t opts;
if (nand_curr_device < 0 ||
nand_curr_device >= CONFIG_SYS_MAX_NAND_DEVICE ||
!nand_info[nand_curr_device].name) {
printf("%s: invalid nand device\n", __func__);
return -1;
}
nand = &nand_info[nand_curr_device];
memset(&opts, 0, sizeof(opts));
opts.offset = dfu->data.nand.start + dfu->offset +
dfu->bad_skip;
opts.length = dfu->data.nand.start +
dfu->data.nand.size - opts.offset;
ret = nand_erase_opts(nand, &opts);
if (ret != 0)
printf("Failure erase: %d\n", ret);
}
return ret;
}
int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
{
char *st;
int ret, dev, part;
dfu->data.nand.ubi = 0;
dfu->dev_type = DFU_DEV_NAND;
st = strsep(&s, " ");
if (!strcmp(st, "raw")) {
@ -148,7 +180,7 @@ int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
dfu->data.nand.start = simple_strtoul(s, &s, 16);
s++;
dfu->data.nand.size = simple_strtoul(s, &s, 16);
} else if (!strcmp(st, "part")) {
} else if ((!strcmp(st, "part")) || (!strcmp(st, "partubi"))) {
char mtd_id[32];
struct mtd_device *mtd_dev;
u8 part_num;
@ -173,7 +205,8 @@ int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
dfu->data.nand.start = pi->offset;
dfu->data.nand.size = pi->size;
if (!strcmp(st, "partubi"))
dfu->data.nand.ubi = 1;
} else {
printf("%s: Memory layout (%s) not supported!\n", __func__, st);
return -1;
@ -181,6 +214,7 @@ int dfu_fill_entity_nand(struct dfu_entity *dfu, char *s)
dfu->read_medium = dfu_read_medium_nand;
dfu->write_medium = dfu_write_medium_nand;
dfu->flush_medium = dfu_flush_medium_nand;
/* initial state */
dfu->inited = 0;

2
include/dfu.h
View file

@ -47,6 +47,8 @@ struct nand_internal_data {
unsigned int dev;
unsigned int part;
/* for nand/ubi use */
unsigned int ubi;
};
static inline unsigned int get_mmc_blk_size(int dev)