dfu, nand, ubi: add partubi alt settings for updating ubi partition
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>
diff --git a/drivers/dfu/dfu_nand.c b/drivers/dfu/dfu_nand.c
index 2a01cc1..0ec12cf 100644
--- a/drivers/dfu/dfu_nand.c
+++ b/drivers/dfu/dfu_nand.c
@@ -136,11 +136,43 @@
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 @@
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 @@
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 @@
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;
diff --git a/include/dfu.h b/include/dfu.h
index 1d4006d..47b9055 100644
--- a/include/dfu.h
+++ b/include/dfu.h
@@ -47,6 +47,8 @@
unsigned int dev;
unsigned int part;
+ /* for nand/ubi use */
+ unsigned int ubi;
};
static inline unsigned int get_mmc_blk_size(int dev)