avr32: add ATAG_BOARDINFO

[sfrench/cifs-2.6.git] / arch / avr32 / kernel / setup.c

diff --git a/arch/avr32/kernel/setup.c b/arch/avr32/kernel/setup.c
index 5c7083916c33c14792728da5a08295476daebc17..bb0974cce4accf3c0a0d01cdfce08d7533d86ab7 100644 (file)
--- a/arch/avr32/kernel/setup.c
+++ b/arch/avr32/kernel/setup.c
@@ -390,6 +390,21 @@ static int __init parse_tag_clock(struct tag *tag)
 }
 __tagtable(ATAG_CLOCK, parse_tag_clock);
 
+/*
+ * The board_number correspond to the bd->bi_board_number in U-Boot. This
+ * parameter is only available during initialisation and can be used in some
+ * kind of board identification.
+ */
+u32 __initdata board_number;
+
+static int __init parse_tag_boardinfo(struct tag *tag)
+{
+       board_number = tag->u.boardinfo.board_number;
+
+       return 0;
+}
+__tagtable(ATAG_BOARDINFO, parse_tag_boardinfo);
+
 /*
  * Scan the tag table for this tag, and call its parse function. The
  * tag table is built by the linker from all the __tagtable