Add DFU_SKIP layout cencept.
If layout is "skip", it will be skipped after nothing to do.
It's useful to support multiple board with one tar file.
Signed-off-by: Jaehoon Chung <jh80.ch...@samsung.com>
---
doc/README.dfu | 10 +++++++++-
drivers/dfu/dfu.c | 2 +-
drivers/dfu/dfu_mmc.c | 9 +++++++++
include/dfu.h | 1 +
4 files changed, 20 insertions(+), 2 deletions(-)
diff --git a/doc/README.dfu b/doc/README.dfu
index 4b9f88354072..827d300e251f 100644
--- a/doc/README.dfu
+++ b/doc/README.dfu
@@ -17,7 +17,7 @@ Overview:
- The access to mediums is done in DFU backends (driver/dfu)
Today the supported DFU backends are:
- - MMC (RAW or FAT / EXT2 / EXT3 / EXT4 file system)
+ - MMC (RAW or FAT / EXT2 / EXT3 / EXT4 file system / SKIP)
- NAND
- RAM
- SF (serial flash)
@@ -91,6 +91,7 @@ Commands:
<name> part <dev> <part_id> [mmcpart <num>] raw access to partition
<name> fat <dev> <part_id> [mmcpart <num>] file in FAT partition
<name> ext4 <dev> <part_id> [mmcpart <num>] file in EXT4 partition
+ <name> skip 0 0 Skip after Nothing to do
with <partid> being the GPT or DOS partition index,
with <num> being the eMMC hardware partition number.
@@ -103,6 +104,13 @@ Commands:
"u-boot raw 0x80 0x800;uImage ext4 0 2"
+ If don't want to flash image file to storage, use "skip" layout.
+ - It can be protected to flash wrong image with specific board name.
+ - Especailly, this layout will be useful when thor protocol is used.
+ For example, if make a tar file to support two board with
u-boot-<board1>.bin
+ and u-boot-<board2>.bin, it can make to flash a proper u-boot without
fail.
+ "u-boot-<board1>.bin raw 0x80 0x800; u-boot-<board2>.bin skip 0 0"
+
"nand" (raw slc nand device)
cmd: dfu 0 nand <dev>
each element in "dfu_alt_info" =
diff --git a/drivers/dfu/dfu.c b/drivers/dfu/dfu.c
index a298c2c43999..f679f1fa5fe5 100644
--- a/drivers/dfu/dfu.c
+++ b/drivers/dfu/dfu.c
@@ -614,7 +614,7 @@ const char *dfu_get_dev_type(enum dfu_device_type t)
const char *dfu_get_layout(enum dfu_layout l)
{
const char *const dfu_layout[] = {NULL, "RAW_ADDR", "FAT", "EXT2",
- "EXT3", "EXT4", "RAM_ADDR" };
+ "EXT3", "EXT4", "RAM_ADDR", "SKIP" };
return dfu_layout[l];
}
diff --git a/drivers/dfu/dfu_mmc.c b/drivers/dfu/dfu_mmc.c
index 691d01c7ebdf..c7c324b0a986 100644
--- a/drivers/dfu/dfu_mmc.c
+++ b/drivers/dfu/dfu_mmc.c
@@ -108,6 +108,8 @@ static int mmc_file_op(enum dfu_op op, struct dfu_entity
*dfu,
case DFU_FS_EXT4:
fstype = FS_TYPE_EXT;
break;
+ case DFU_SKIP:
+ return 0;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
dfu_get_layout(dfu->layout));
@@ -204,6 +206,9 @@ int dfu_write_medium_mmc(struct dfu_entity *dfu,
case DFU_FS_EXT4:
ret = mmc_file_buf_write(dfu, offset, buf, len);
break;
+ case DFU_SKIP:
+ ret = 0;
+ break;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
dfu_get_layout(dfu->layout));
@@ -238,6 +243,8 @@ int dfu_get_medium_size_mmc(struct dfu_entity *dfu, u64
*size)
if (ret < 0)
return ret;
return 0;
+ case DFU_SKIP:
+ return 0;
default:
printf("%s: Layout (%s) not (yet) supported!\n", __func__,
dfu_get_layout(dfu->layout));
@@ -399,6 +406,8 @@ int dfu_fill_entity_mmc(struct dfu_entity *dfu, char
*devstr, char *s)
dfu->layout = DFU_FS_FAT;
} else if (!strcmp(entity_type, "ext4")) {
dfu->layout = DFU_FS_EXT4;
+ } else if (!strcmp(entity_type, "skip")) {
+ dfu->layout = DFU_SKIP;
} else {
pr_err("Memory layout (%s) not supported!\n", entity_type);
return -ENODEV;
diff --git a/include/dfu.h b/include/dfu.h
index 84abdc79acd1..2e8276c69c9f 100644
--- a/include/dfu.h
+++ b/include/dfu.h
@@ -33,6 +33,7 @@ enum dfu_layout {
DFU_FS_EXT3,
DFU_FS_EXT4,
DFU_RAM_ADDR,
+ DFU_SKIP,
};
enum dfu_op {
--
2.29.0
