fdt: Add ft_system_setup() function for system device tree additions
Add an additional function for adding information to the device tree before
booting. This permits additions which are not board-specific.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Anatolij Gustschin <agust@denx.de>
Reviewed-by: Tom Rini <trini@ti.com>
diff --git a/common/cmd_fdt.c b/common/cmd_fdt.c
index 6f7ea08..25b4675 100644
--- a/common/cmd_fdt.c
+++ b/common/cmd_fdt.c
@@ -576,6 +576,18 @@
}
}
#endif
+#ifdef CONFIG_OF_SYSTEM_SETUP
+ /* Call the board-specific fixup routine */
+ else if (strncmp(argv[1], "sys", 3) == 0) {
+ int err = ft_system_setup(working_fdt, gd->bd);
+
+ if (err) {
+ printf("Failed to add system information to FDT: %s\n",
+ fdt_strerror(err));
+ return CMD_RET_FAILURE;
+ }
+ }
+#endif
/* Create a chosen node */
else if (strncmp(argv[1], "cho", 3) == 0) {
unsigned long initrd_start = 0, initrd_end = 0;
@@ -1015,6 +1027,9 @@
#ifdef CONFIG_OF_BOARD_SETUP
"fdt boardsetup - Do board-specific set up\n"
#endif
+#ifdef CONFIG_OF_SYSTEM_SETUP
+ "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 print <path> [<prop>] - Recursive print starting at <path>\n"