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cmd_sf: let "sf update" erase last sector as a whole

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make "sf update" work with unaligned `len' parameter, by deleting the
whole last sector before writing, so to allow for:

 sf update ${load_addr_r} 0 ${filesize}

Signed-off-by: Gerlando Falauto <gerlando.falauto@keymile.com>
Cc: Valentin Longchamp <valentin.longchamp@keymile.com>
Cc: Holger Brunck <holger.brunck@keymile.com>
Acked-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
This commit is contained in:
Gerlando Falauto 2013-07-03 20:33:57 +02:00 committed by Jagannadha Sutradharudu Teki
parent 5928b9a865
commit 3488850629
1 changed files with 2 additions and 1 deletions
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3
common/cmd_sf.c
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@ -160,7 +160,8 @@ static const char *spi_flash_update_block(struct spi_flash *flash, u32 offset,
*skipped += len;
return NULL;
}
if (spi_flash_erase(flash, offset, len))
/* Erase the entire sector */
if (spi_flash_erase(flash, offset, flash->sector_size))
return "erase";
if (spi_flash_write(flash, offset, len, buf))
return "write";