X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=README;h=7879eef16f71aeba8676a3b3d92380ee7ff12623;hb=ea2453d56b8860dbd18a3c517531ffc8dcb5c839;hp=f7f41bc7ed0e50b8757800c96976c115c0b95f65;hpb=b3ba6e94b8298422aa98961fdd30890f3dd83cc5;p=people%2Fms%2Fu-boot.git

diff --git a/README b/README
index f7f41bc7ed..7879eef16f 100644
--- a/README
+++ b/README
@@ -1357,6 +1357,13 @@ The following options need to be configured:
 		CONFIG_DFU_MMC
 		This enables support for exposing (e)MMC devices via DFU.
 
+		CONFIG_SYS_DFU_MAX_FILE_SIZE
+		When updating files rather than the raw storage device,
+		we use a static buffer to copy the file into and then write
+		the buffer once we've been given the whole file.  Define
+		this to the maximum filesize (in bytes) for the buffer.
+		Default is 4 MiB if undefined.
+
 - Journaling Flash filesystem support:
 		CONFIG_JFFS2_NAND, CONFIG_JFFS2_NAND_OFF, CONFIG_JFFS2_NAND_SIZE,
 		CONFIG_JFFS2_NAND_DEV