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spl: ymodem: Fix loading of fit image

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spl ymodem driver always assumes that 1 BUF_SIZE is read in one stream.
This might not be true when image is not padded to BUF_SIZE and the last
sector that gets loaded will be < BUF_SIZE. Drop this assumption and use
the actual size that is loaded.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
This commit is contained in:
Lokesh Vutla 2019-11-14 18:33:30 +05:30 committed by Tom Rini
parent 3ef94715cc
commit 095764e369
1 changed files with 6 additions and 2 deletions
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8
common/spl/spl_ymodem.c
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@ -37,7 +37,7 @@ static int getcymodem(void) {
static ulong ymodem_read_fit(struct spl_load_info *load, ulong offset,
ulong size, void *addr)
{
int res, err;
int res, err, buf_offset;
struct ymodem_fit_info *info = load->priv;
char *buf = info->buf;
@ -51,7 +51,11 @@ static ulong ymodem_read_fit(struct spl_load_info *load, ulong offset,
if (info->image_read > offset) {
res = info->image_read - offset;
memcpy(addr, &buf[BUF_SIZE - res], res);
if (info->image_read % BUF_SIZE)
buf_offset = (info->image_read % BUF_SIZE);
else
buf_offset = BUF_SIZE;
memcpy(addr, &buf[buf_offset - res], res);
addr = addr + res;
}