--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -326,13 +326,13 @@ err_ctlreg:
 	return err;
 }
 
-static s8 r123_extract_antgain(u8 sprom_revision, const u16 *in,
-			       u16 mask, u16 shift)
+static s8 sprom_extract_antgain(u8 sprom_revision, const u16 *in, u16 offset,
+				u16 mask, u16 shift)
 {
 	u16 v;
 	u8 gain;
 
-	v = in[SPOFF(SSB_SPROM1_AGAIN)];
+	v = in[SPOFF(offset)];
 	gain = (v & mask) >> shift;
 	if (gain == 0xFF)
 		gain = 2; /* If unset use 2dBm */
@@ -416,12 +416,14 @@ static void sprom_extract_r123(struct ss
 	SPEX(alpha2[1], SSB_SPROM1_CCODE, 0x00ff, 0);
 
 	/* Extract the antenna gain values. */
-	out->antenna_gain.a0 = r123_extract_antgain(out->revision, in,
-						    SSB_SPROM1_AGAIN_BG,
-						    SSB_SPROM1_AGAIN_BG_SHIFT);
-	out->antenna_gain.a1 = r123_extract_antgain(out->revision, in,
-						    SSB_SPROM1_AGAIN_A,
-						    SSB_SPROM1_AGAIN_A_SHIFT);
+	out->antenna_gain.a0 = sprom_extract_antgain(out->revision, in,
+						     SSB_SPROM1_AGAIN,
+						     SSB_SPROM1_AGAIN_BG,
+						     SSB_SPROM1_AGAIN_BG_SHIFT);
+	out->antenna_gain.a1 = sprom_extract_antgain(out->revision, in,
+						     SSB_SPROM1_AGAIN,
+						     SSB_SPROM1_AGAIN_A,
+						     SSB_SPROM1_AGAIN_A_SHIFT);
 	if (out->revision >= 2)
 		sprom_extract_r23(out, in);
 }
@@ -468,7 +470,15 @@ static void sprom_extract_r458(struct ss
 
 static void sprom_extract_r45(struct ssb_sprom *out, const u16 *in)
 {
+	static const u16 pwr_info_offset[] = {
+		SSB_SPROM4_PWR_INFO_CORE0, SSB_SPROM4_PWR_INFO_CORE1,
+		SSB_SPROM4_PWR_INFO_CORE2, SSB_SPROM4_PWR_INFO_CORE3
+	};
 	u16 il0mac_offset;
+	int i;
+
+	BUILD_BUG_ON(ARRAY_SIZE(pwr_info_offset) !=
+		     ARRAY_SIZE(out->core_pwr_info));
 
 	if (out->revision == 4)
 		il0mac_offset = SSB_SPROM4_IL0MAC;
@@ -524,14 +534,59 @@ static void sprom_extract_r45(struct ssb
 	}
 
 	/* Extract the antenna gain values. */
-	SPEX(antenna_gain.a0, SSB_SPROM4_AGAIN01,
-	     SSB_SPROM4_AGAIN0, SSB_SPROM4_AGAIN0_SHIFT);
-	SPEX(antenna_gain.a1, SSB_SPROM4_AGAIN01,
-	     SSB_SPROM4_AGAIN1, SSB_SPROM4_AGAIN1_SHIFT);
-	SPEX(antenna_gain.a2, SSB_SPROM4_AGAIN23,
-	     SSB_SPROM4_AGAIN2, SSB_SPROM4_AGAIN2_SHIFT);
-	SPEX(antenna_gain.a3, SSB_SPROM4_AGAIN23,
-	     SSB_SPROM4_AGAIN3, SSB_SPROM4_AGAIN3_SHIFT);
+	out->antenna_gain.a0 = sprom_extract_antgain(out->revision, in,
+						     SSB_SPROM4_AGAIN01,
+						     SSB_SPROM4_AGAIN0,
+						     SSB_SPROM4_AGAIN0_SHIFT);
+	out->antenna_gain.a1 = sprom_extract_antgain(out->revision, in,
+						     SSB_SPROM4_AGAIN01,
+						     SSB_SPROM4_AGAIN1,
+						     SSB_SPROM4_AGAIN1_SHIFT);
+	out->antenna_gain.a2 = sprom_extract_antgain(out->revision, in,
+						     SSB_SPROM4_AGAIN23,
+						     SSB_SPROM4_AGAIN2,
+						     SSB_SPROM4_AGAIN2_SHIFT);
+	out->antenna_gain.a3 = sprom_extract_antgain(out->revision, in,
+						     SSB_SPROM4_AGAIN23,
+						     SSB_SPROM4_AGAIN3,
+						     SSB_SPROM4_AGAIN3_SHIFT);
+
+	/* Extract cores power info info */
+	for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) {
+		u16 o = pwr_info_offset[i];
+
+		SPEX(core_pwr_info[i].itssi_2g, o + SSB_SPROM4_2G_MAXP_ITSSI,
+			SSB_SPROM4_2G_ITSSI, SSB_SPROM4_2G_ITSSI_SHIFT);
+		SPEX(core_pwr_info[i].maxpwr_2g, o + SSB_SPROM4_2G_MAXP_ITSSI,
+			SSB_SPROM4_2G_MAXP, 0);
+
+		SPEX(core_pwr_info[i].pa_2g[0], o + SSB_SPROM4_2G_PA_0, ~0, 0);
+		SPEX(core_pwr_info[i].pa_2g[1], o + SSB_SPROM4_2G_PA_1, ~0, 0);
+		SPEX(core_pwr_info[i].pa_2g[2], o + SSB_SPROM4_2G_PA_2, ~0, 0);
+		SPEX(core_pwr_info[i].pa_2g[3], o + SSB_SPROM4_2G_PA_3, ~0, 0);
+
+		SPEX(core_pwr_info[i].itssi_5g, o + SSB_SPROM4_5G_MAXP_ITSSI,
+			SSB_SPROM4_5G_ITSSI, SSB_SPROM4_5G_ITSSI_SHIFT);
+		SPEX(core_pwr_info[i].maxpwr_5g, o + SSB_SPROM4_5G_MAXP_ITSSI,
+			SSB_SPROM4_5G_MAXP, 0);
+		SPEX(core_pwr_info[i].maxpwr_5gh, o + SSB_SPROM4_5GHL_MAXP,
+			SSB_SPROM4_5GH_MAXP, 0);
+		SPEX(core_pwr_info[i].maxpwr_5gl, o + SSB_SPROM4_5GHL_MAXP,
+			SSB_SPROM4_5GL_MAXP, SSB_SPROM4_5GL_MAXP_SHIFT);
+
+		SPEX(core_pwr_info[i].pa_5gl[0], o + SSB_SPROM4_5GL_PA_0, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5gl[1], o + SSB_SPROM4_5GL_PA_1, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5gl[2], o + SSB_SPROM4_5GL_PA_2, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5gl[3], o + SSB_SPROM4_5GL_PA_3, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5g[0], o + SSB_SPROM4_5G_PA_0, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5g[1], o + SSB_SPROM4_5G_PA_1, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5g[2], o + SSB_SPROM4_5G_PA_2, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5g[3], o + SSB_SPROM4_5G_PA_3, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5gh[0], o + SSB_SPROM4_5GH_PA_0, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5gh[1], o + SSB_SPROM4_5GH_PA_1, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5gh[2], o + SSB_SPROM4_5GH_PA_2, ~0, 0);
+		SPEX(core_pwr_info[i].pa_5gh[3], o + SSB_SPROM4_5GH_PA_3, ~0, 0);
+	}
 
 	sprom_extract_r458(out, in);
 
@@ -621,14 +676,22 @@ static void sprom_extract_r8(struct ssb_
 	SPEX32(ofdm5ghpo, SSB_SPROM8_OFDM5GHPO, 0xFFFFFFFF, 0);
 
 	/* Extract the antenna gain values. */
-	SPEX(antenna_gain.a0, SSB_SPROM8_AGAIN01,
-	     SSB_SPROM8_AGAIN0, SSB_SPROM8_AGAIN0_SHIFT);
-	SPEX(antenna_gain.a1, SSB_SPROM8_AGAIN01,
-	     SSB_SPROM8_AGAIN1, SSB_SPROM8_AGAIN1_SHIFT);
-	SPEX(antenna_gain.a2, SSB_SPROM8_AGAIN23,
-	     SSB_SPROM8_AGAIN2, SSB_SPROM8_AGAIN2_SHIFT);
-	SPEX(antenna_gain.a3, SSB_SPROM8_AGAIN23,
-	     SSB_SPROM8_AGAIN3, SSB_SPROM8_AGAIN3_SHIFT);
+	out->antenna_gain.a0 = sprom_extract_antgain(out->revision, in,
+						     SSB_SPROM8_AGAIN01,
+						     SSB_SPROM8_AGAIN0,
+						     SSB_SPROM8_AGAIN0_SHIFT);
+	out->antenna_gain.a1 = sprom_extract_antgain(out->revision, in,
+						     SSB_SPROM8_AGAIN01,
+						     SSB_SPROM8_AGAIN1,
+						     SSB_SPROM8_AGAIN1_SHIFT);
+	out->antenna_gain.a2 = sprom_extract_antgain(out->revision, in,
+						     SSB_SPROM8_AGAIN23,
+						     SSB_SPROM8_AGAIN2,
+						     SSB_SPROM8_AGAIN2_SHIFT);
+	out->antenna_gain.a3 = sprom_extract_antgain(out->revision, in,
+						     SSB_SPROM8_AGAIN23,
+						     SSB_SPROM8_AGAIN3,
+						     SSB_SPROM8_AGAIN3_SHIFT);
 
 	/* Extract cores power info info */
 	for (i = 0; i < ARRAY_SIZE(pwr_info_offset); i++) {
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -33,6 +33,7 @@ struct ssb_sprom {
 	u8 et1phyaddr;		/* MII address for enet1 */
 	u8 et0mdcport;		/* MDIO for enet0 */
 	u8 et1mdcport;		/* MDIO for enet1 */
+	u16 dev_id;		/* Device ID overriding e.g. PCI ID */
 	u16 board_rev;		/* Board revision number from SPROM. */
 	u16 board_num;		/* Board number from SPROM. */
 	u16 board_type;		/* Board type from SPROM. */
--- a/include/linux/ssb/ssb_regs.h
+++ b/include/linux/ssb/ssb_regs.h
@@ -345,6 +345,43 @@
 #define  SSB_SPROM4_TXPID5GH2_SHIFT	0
 #define  SSB_SPROM4_TXPID5GH3		0xFF00
 #define  SSB_SPROM4_TXPID5GH3_SHIFT	8
+
+/* There are 4 blocks with power info sharing the same layout */
+#define SSB_SPROM4_PWR_INFO_CORE0	0x0080
+#define SSB_SPROM4_PWR_INFO_CORE1	0x00AE
+#define SSB_SPROM4_PWR_INFO_CORE2	0x00DC
+#define SSB_SPROM4_PWR_INFO_CORE3	0x010A
+
+#define SSB_SPROM4_2G_MAXP_ITSSI	0x00	/* 2 GHz ITSSI and 2 GHz Max Power */
+#define  SSB_SPROM4_2G_MAXP		0x00FF
+#define  SSB_SPROM4_2G_ITSSI		0xFF00
+#define  SSB_SPROM4_2G_ITSSI_SHIFT	8
+#define SSB_SPROM4_2G_PA_0		0x02	/* 2 GHz power amp */
+#define SSB_SPROM4_2G_PA_1		0x04
+#define SSB_SPROM4_2G_PA_2		0x06
+#define SSB_SPROM4_2G_PA_3		0x08
+#define SSB_SPROM4_5G_MAXP_ITSSI	0x0A	/* 5 GHz ITSSI and 5.3 GHz Max Power */
+#define  SSB_SPROM4_5G_MAXP		0x00FF
+#define  SSB_SPROM4_5G_ITSSI		0xFF00
+#define  SSB_SPROM4_5G_ITSSI_SHIFT	8
+#define SSB_SPROM4_5GHL_MAXP		0x0C	/* 5.2 GHz and 5.8 GHz Max Power */
+#define  SSB_SPROM4_5GH_MAXP		0x00FF
+#define  SSB_SPROM4_5GL_MAXP		0xFF00
+#define  SSB_SPROM4_5GL_MAXP_SHIFT	8
+#define SSB_SPROM4_5G_PA_0		0x0E	/* 5.3 GHz power amp */
+#define SSB_SPROM4_5G_PA_1		0x10
+#define SSB_SPROM4_5G_PA_2		0x12
+#define SSB_SPROM4_5G_PA_3		0x14
+#define SSB_SPROM4_5GL_PA_0		0x16	/* 5.2 GHz power amp */
+#define SSB_SPROM4_5GL_PA_1		0x18
+#define SSB_SPROM4_5GL_PA_2		0x1A
+#define SSB_SPROM4_5GL_PA_3		0x1C
+#define SSB_SPROM4_5GH_PA_0		0x1E	/* 5.8 GHz power amp */
+#define SSB_SPROM4_5GH_PA_1		0x20
+#define SSB_SPROM4_5GH_PA_2		0x22
+#define SSB_SPROM4_5GH_PA_3		0x24
+
+/* TODO: Make it deprecated */
 #define SSB_SPROM4_MAXP_BG		0x0080  /* Max Power BG in path 1 */
 #define  SSB_SPROM4_MAXP_BG_MASK	0x00FF  /* Mask for Max Power BG */
 #define  SSB_SPROM4_ITSSI_BG		0xFF00	/* Mask for path 1 itssi_bg */
--- a/arch/mips/bcm47xx/sprom.c
+++ b/arch/mips/bcm47xx/sprom.c
@@ -168,6 +168,7 @@ static void nvram_read_alpha2(const char
 static void bcm47xx_fill_sprom_r1234589(struct ssb_sprom *sprom,
 					const char *prefix, bool fallback)
 {
+	nvram_read_u16(prefix, NULL, "devid", &sprom->dev_id, 0, fallback);
 	nvram_read_u8(prefix, NULL, "ledbh0", &sprom->gpio0, 0xff, fallback);
 	nvram_read_u8(prefix, NULL, "ledbh1", &sprom->gpio1, 0xff, fallback);
 	nvram_read_u8(prefix, NULL, "ledbh2", &sprom->gpio2, 0xff, fallback);
