diff --git a/sys/dev/bwn/if_bwn_phy_lp.c b/sys/dev/bwn/if_bwn_phy_lp.c
index d53a2dd488ae..79a986f6ae57 100644
--- a/sys/dev/bwn/if_bwn_phy_lp.c
+++ b/sys/dev/bwn/if_bwn_phy_lp.c
@@ -77,6 +77,8 @@ __FBSDID("$FreeBSD$");
 
 #include <dev/bwn/if_bwn_debug.h>
 #include <dev/bwn/if_bwn_misc.h>
+#include <dev/bwn/if_bwn_util.h>
+#include <dev/bwn/if_bwn_phy_common.h>
 #include <dev/bwn/if_bwn_phy_lp.h>
 
 static void	bwn_phy_lp_readsprom(struct bwn_mac *);
@@ -2271,57 +2273,6 @@ bwn_phy_lp_clear_deaf(struct bwn_mac *mac, uint8_t user)
 		BWN_PHY_SETMASK(mac, BWN_PHY_CRSGAIN_CTL, 0xff1f, 0x20);
 }
 
-static unsigned int
-bwn_sqrt(struct bwn_mac *mac, unsigned int x)
-{
-	/* Table holding (10 * sqrt(x)) for x between 1 and 256. */
-	static uint8_t sqrt_table[256] = {
-		10, 14, 17, 20, 22, 24, 26, 28,
-		30, 31, 33, 34, 36, 37, 38, 40,
-		41, 42, 43, 44, 45, 46, 47, 48,
-		50, 50, 51, 52, 53, 54, 55, 56,
-		57, 58, 59, 60, 60, 61, 62, 63,
-		64, 64, 65, 66, 67, 67, 68, 69,
-		70, 70, 71, 72, 72, 73, 74, 74,
-		75, 76, 76, 77, 78, 78, 79, 80,
-		80, 81, 81, 82, 83, 83, 84, 84,
-		85, 86, 86, 87, 87, 88, 88, 89,
-		90, 90, 91, 91, 92, 92, 93, 93,
-		94, 94, 95, 95, 96, 96, 97, 97,
-		98, 98, 99, 100, 100, 100, 101, 101,
-		102, 102, 103, 103, 104, 104, 105, 105,
-		106, 106, 107, 107, 108, 108, 109, 109,
-		110, 110, 110, 111, 111, 112, 112, 113,
-		113, 114, 114, 114, 115, 115, 116, 116,
-		117, 117, 117, 118, 118, 119, 119, 120,
-		120, 120, 121, 121, 122, 122, 122, 123,
-		123, 124, 124, 124, 125, 125, 126, 126,
-		126, 127, 127, 128, 128, 128, 129, 129,
-		130, 130, 130, 131, 131, 131, 132, 132,
-		133, 133, 133, 134, 134, 134, 135, 135,
-		136, 136, 136, 137, 137, 137, 138, 138,
-		138, 139, 139, 140, 140, 140, 141, 141,
-		141, 142, 142, 142, 143, 143, 143, 144,
-		144, 144, 145, 145, 145, 146, 146, 146,
-		147, 147, 147, 148, 148, 148, 149, 149,
-		150, 150, 150, 150, 151, 151, 151, 152,
-		152, 152, 153, 153, 153, 154, 154, 154,
-		155, 155, 155, 156, 156, 156, 157, 157,
-		157, 158, 158, 158, 159, 159, 159, 160
-	};
-
-	if (x == 0)
-		return (0);
-	if (x >= 256) {
-		unsigned int tmp;
-
-		for (tmp = 0; x >= (2 * tmp) + 1; x -= (2 * tmp++) + 1)
-			/* do nothing */ ;
-		return (tmp);
-	}
-	return (sqrt_table[x - 1] / 10);
-}
-
 static int
 bwn_phy_lp_calc_rx_iq_comp(struct bwn_mac *mac, uint16_t sample)
 {