aboutsummaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorSimon Glass <sjg@chromium.org>2021-03-18 20:24:55 +1300
committerSimon Glass <sjg@chromium.org>2021-03-26 17:03:09 +1300
commitdccdc38247a6b6e95dd4df3f58fd79bc3c785d00 (patch)
tree85d4b19d9cb5fd79a11797373b91836c49c46efc
parentadc59eaff7040f46d91b019048b34448e7eff325 (diff)
downloadu-boot-dccdc38247a6b6e95dd4df3f58fd79bc3c785d00.zip
u-boot-dccdc38247a6b6e95dd4df3f58fd79bc3c785d00.tar.gz
u-boot-dccdc38247a6b6e95dd4df3f58fd79bc3c785d00.tar.bz2
binman: Correct the documentation for u-boot-spl-bss-pad
The documentation for this entry indicates that the SPL binary is included along with the padding. It is not, so update it to correct the error. Signed-off-by: Simon Glass <sjg@chromium.org>
-rw-r--r--tools/binman/README.entries17
-rw-r--r--tools/binman/etype/u_boot_spl_bss_pad.py17
2 files changed, 20 insertions, 14 deletions
diff --git a/tools/binman/README.entries b/tools/binman/README.entries
index 3fbc06d..5c6663e 100644
--- a/tools/binman/README.entries
+++ b/tools/binman/README.entries
@@ -960,13 +960,16 @@ Entry: u-boot-spl-bss-pad: U-Boot SPL binary padded with a BSS region
Properties / Entry arguments:
None
-This is similar to u_boot_spl except that padding is added after the SPL
-binary to cover the BSS (Block Started by Symbol) region. This region holds
-the various used by SPL. It is set to 0 by SPL when it starts up. If you
-want to append data to the SPL image (such as a device tree file), you must
-pad out the BSS region to avoid the data overlapping with U-Boot variables.
-This entry is useful in that case. It automatically pads out the entry size
-to cover both the code, data and BSS.
+This holds the padding added after the SPL binary to cover the BSS (Block
+Started by Symbol) region. This region holds the various variables used by
+SPL. It is set to 0 by SPL when it starts up. If you want to append data to
+the SPL image (such as a device tree file), you must pad out the BSS region
+to avoid the data overlapping with U-Boot variables. This entry is useful in
+that case. It automatically pads out the entry size to cover both the code,
+data and BSS.
+
+The contents of this entry will a certain number of zero bytes, determined
+by __bss_size
The ELF file 'spl/u-boot-spl' must also be available for this to work, since
binman uses that to look up the BSS address.
diff --git a/tools/binman/etype/u_boot_spl_bss_pad.py b/tools/binman/etype/u_boot_spl_bss_pad.py
index df15cd2..18c5596 100644
--- a/tools/binman/etype/u_boot_spl_bss_pad.py
+++ b/tools/binman/etype/u_boot_spl_bss_pad.py
@@ -18,13 +18,16 @@ class Entry_u_boot_spl_bss_pad(Entry_blob):
Properties / Entry arguments:
None
- This is similar to u_boot_spl except that padding is added after the SPL
- binary to cover the BSS (Block Started by Symbol) region. This region holds
- the various used by SPL. It is set to 0 by SPL when it starts up. If you
- want to append data to the SPL image (such as a device tree file), you must
- pad out the BSS region to avoid the data overlapping with U-Boot variables.
- This entry is useful in that case. It automatically pads out the entry size
- to cover both the code, data and BSS.
+ This holds the padding added after the SPL binary to cover the BSS (Block
+ Started by Symbol) region. This region holds the various variables used by
+ SPL. It is set to 0 by SPL when it starts up. If you want to append data to
+ the SPL image (such as a device tree file), you must pad out the BSS region
+ to avoid the data overlapping with U-Boot variables. This entry is useful in
+ that case. It automatically pads out the entry size to cover both the code,
+ data and BSS.
+
+ The contents of this entry will a certain number of zero bytes, determined
+ by __bss_size
The ELF file 'spl/u-boot-spl' must also be available for this to work, since
binman uses that to look up the BSS address.