am43xx: Only read the MPU frequency bits of CTRL_DEV_ATTR
Signed-off-by: Tom Rini <trini@ti.com>
diff --git a/board/ti/am43xx/board.c b/board/ti/am43xx/board.c
index 587fd76..b635d69 100644
--- a/board/ti/am43xx/board.c
+++ b/board/ti/am43xx/board.c
@@ -302,7 +302,10 @@
static int get_opp_offset(int max_off, int min_off)
{
struct ctrl_stat *ctrl = (struct ctrl_stat *)CTRL_BASE;
- int opp = readl(&ctrl->dev_attr), offset, i;
+ int opp, offset, i;
+
+ /* Bits 0:11 are defined to be the MPU_MAX_FREQ */
+ opp = readl(&ctrl->dev_attr) & ~0xFFFFF000;
for (i = max_off; i >= min_off; i--) {
offset = opp & (1 << i);