am43xx: Only read the MPU frequency bits of CTRL_DEV_ATTR

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

am43xx: Only read the MPU frequency bits of CTRL_DEV_ATTR
Signed-off-by: Tom Rini <trini@ti.com>
Tom Rini
1 parent 1ab6f61a1a
Showing 1 changed file with 4 additions and 1 deletions Side-by-side Diff
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);
...	...	@@ -302,7 +302,10 @@
302	302	static int get_opp_offset(int max_off, int min_off)
303	303	{
304	304	struct ctrl_stat ctrl = (struct ctrl_stat )CTRL_BASE;
305		- int opp = readl(&ctrl->dev_attr), offset, i;
	305	+ int opp, offset, i;
	306	+
	307	+ /* Bits 0:11 are defined to be the MPU_MAX_FREQ */
	308	+ opp = readl(&ctrl->dev_attr) & ~0xFFFFF000;
306	309
307	310	for (i = max_off; i >= min_off; i--) {
308	311	offset = opp & (1 << i);