beagleboard: Update comment in get_board_rev()

We are able to tell the difference between xM Rev Ax/Bx and xM Rev Cx,
and have been for some time.  The comment above the function however did
not list this, so update.

Signed-off-by: Tom Rini <trini@ti.com>

diff --git a/board/ti/beagle/beagle.c b/board/ti/beagle/beagle.c
index 3d9b6dd8fd2a25f0113721ab0f30dda98b2ff3a6..c686f40a93398c0c84231a2f6b0463d88f8259ac 100644 (file)
--- a/board/ti/beagle/beagle.c
+++ b/board/ti/beagle/beagle.c
@@ -108,13 +108,14 @@ int board_init(void)
 /*
  * Routine: get_board_revision
  * Description: Detect if we are running on a Beagle revision Ax/Bx,
- *             C1/2/3, C4 or xM. This can be done by reading
+ *             C1/2/3, C4, xM Ax/Bx or xM Cx. This can be done by reading
  *             the level of GPIO173, GPIO172 and GPIO171. This should
  *             result in
  *             GPIO173, GPIO172, GPIO171: 1 1 1 => Ax/Bx
  *             GPIO173, GPIO172, GPIO171: 1 1 0 => C1/2/3
  *             GPIO173, GPIO172, GPIO171: 1 0 1 => C4
- *             GPIO173, GPIO172, GPIO171: 0 0 0 => xM
+ *             GPIO173, GPIO172, GPIO171: 0 1 0 => xM Cx
+ *             GPIO173, GPIO172, GPIO171: 0 0 0 => xM Ax/Bx
  */
 static int get_board_revision(void)
 {