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authorSimon Glass <sjg@chromium.org>2013-04-20 08:42:41 +0000
committerTom Rini <trini@ti.com>2013-05-01 11:17:21 -0400
commitf828bf25fe02f0d7148a9180988ab4d5681b8195 (patch)
tree99c43aaf2246ec97b15ebb2f0603bfd7d2474d08 /doc/README.fdt-control
parenta733b06b69d2cb058c4363952bc0793b1f514305 (diff)
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sandbox: Add CONFIG_OF_HOSTFILE to read FDT from host file
With sandbox it is tricky to add an FDT to the image at build time (or later) since we build an ELF file, not a plain binary, and the address space of the whole U-Boot is not accessible in the emulated memory map of sandbox. Sandbox can read files directly from the host, though, so add an option to read an FDT from a host file on start-up. Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'doc/README.fdt-control')
-rw-r--r--doc/README.fdt-control6
1 files changed, 5 insertions, 1 deletions
diff --git a/doc/README.fdt-control b/doc/README.fdt-control
index 8352835..5963f78 100644
--- a/doc/README.fdt-control
+++ b/doc/README.fdt-control
@@ -142,7 +142,11 @@ join the two:
and then flash image.bin onto your board.
-You cannot use both of these options at the same time.
+If CONFIG_OF_HOSTFILE is defined, then it will be read from a file on
+startup. This is only useful for sandbox. Use the -d flag to U-Boot to
+specify the file to read.
+
+You cannot use more than one of these options at the same time.
If you wish to put the fdt at a different address in memory, you can
define the "fdtcontroladdr" environment variable. This is the hex