dfu: make data buffer size configurable

[karo-tx-uboot.git] / README

diff --git a/README b/README
index 5c343da32bdf581420c0d18e5cea3cac49c8f9e3..85e5a8d6d444c22b03ed1c76b05f2a02a61c0fe6 100644 (file)
--- a/README
+++ b/README
@@ -1392,6 +1392,12 @@ The following options need to be configured:
                CONFIG_DFU_NAND
                This enables support for exposing NAND devices via DFU.
 
+               CONFIG_SYS_DFU_DATA_BUF_SIZE
+               Dfu transfer uses a buffer before writing data to the
+               raw storage device. Make the size (in bytes) of this buffer
+               configurable. The size of this buffer is also configurable
+               through the "dfu_bufsiz" environment variable.
+
                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