cmd/fdt: add possibilty to have 'extrasize' on fdt resize
Sometimes devicetree nodes and or properties are added out of the u-boot
console, maybe through some script or manual interaction.
The devicetree as loaded or embedded is quite small, so the devicetree
has to be resized to take up those new nodes/properties.
In original the devicetree was only extended by effective
4 * add_mem_rsv.
With this commit we can add an argument to the "fdt resize" command,
which takes the extrasize to be added.
Signed-off-by: Hannes Schmelzer <hannes.schmelzer@br-automation.com>
Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
Acked-by: Simon Glass <sjg@chromium.org>
diff --git a/cmd/fdt.c b/cmd/fdt.c
index 58af772..b503357 100644
--- a/cmd/fdt.c
+++ b/cmd/fdt.c
@@ -662,7 +662,12 @@
#endif
/* resize the fdt */
else if (strncmp(argv[1], "re", 2) == 0) {
- fdt_shrink_to_minimum(working_fdt);
+ uint extrasize;
+ if (argc > 2)
+ extrasize = simple_strtoul(argv[2], NULL, 16);
+ else
+ extrasize = 0;
+ fdt_shrink_to_minimum(working_fdt, extrasize);
}
else {
/* Unrecognized command */
@@ -1056,7 +1061,7 @@
"fdt systemsetup - Do system-specific set up\n"
#endif
"fdt move <fdt> <newaddr> <length> - Copy the fdt to <addr> and make it active\n"
- "fdt resize - Resize fdt to size + padding to 4k addr\n"
+ "fdt resize [<extrasize>] - Resize fdt to size + padding to 4k addr + some optional <extrasize> if needed\n"
"fdt print <path> [<prop>] - Recursive print starting at <path>\n"
"fdt list <path> [<prop>] - Print one level starting at <path>\n"
"fdt get value <var> <path> <prop> - Get <property> and store in <var>\n"