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Diffstat (limited to 'tools/binman/README.entries')
| -rw-r--r-- | tools/binman/README.entries | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/tools/binman/README.entries b/tools/binman/README.entries index 8651ba05f2..368c976497 100644 --- a/tools/binman/README.entries +++ b/tools/binman/README.entries @@ -1056,6 +1056,28 @@ binman uses that to look up symbols to write into the TPL binary. +Entry: u-boot-tpl-bss-pad: U-Boot TPL binary padded with a BSS region +--------------------------------------------------------------------- + +Properties / Entry arguments: + None + +This holds the padding added after the TPL binary to cover the BSS (Block +Started by Symbol) region. This region holds the various variables used by +TPL. It is set to 0 by TPL when it starts up. If you want to append data to +the TPL 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 'tpl/u-boot-tpl' must also be available for this to work, since +binman uses that to look up the BSS address. + + + Entry: u-boot-tpl-dtb: U-Boot TPL device tree --------------------------------------------- |