diff --git a/drivers/ssb/pci.c b/drivers/ssb/pci.c
index 0ab095c..7226a71 100644
--- a/drivers/ssb/pci.c
+++ b/drivers/ssb/pci.c
@@ -423,8 +423,6 @@
 	memset(out, 0, sizeof(*out));
 
 	SPEX(revision, SSB_SPROM_REVISION, SSB_SPROM_REVISION_REV, 0);
-	SPEX(crc, SSB_SPROM_REVISION, SSB_SPROM_REVISION_CRC,
-	     SSB_SPROM_REVISION_CRC_SHIFT);
 
 	if ((bus->chip_id & 0xFF00) == 0x4400) {
 		/* Workaround: The BCM44XX chip has a stupid revision
diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index 2b5c312..cdd8a2f 100644
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -78,13 +78,34 @@
 	u32 ofdmgpo;		/* G-PHY OFDM Power Offset */
 };
 
-struct ssb_sprom_r4 {
-	/* TODO */
-};
-
 struct ssb_sprom {
 	u8 revision;
-	u8 crc;
+	u8 temp_fill[2 * sizeof(struct ssb_sprom_r1)];
+	u8 il0mac[6];		/* MAC address for 802.11b/g */
+	u8 et0mac[6];		/* MAC address for Ethernet */
+	u8 et1mac[6];		/* MAC address for 802.11a */
+	u8 et0phyaddr;		/* MII address for enet0 */
+	u8 et1phyaddr;		/* MII address for enet1 */
+	u8 country_code;	/* Country Code */
+	u16 pa0b0;
+	u16 pa0b1;
+	u16 pa0b2;
+	u16 pa1b0;
+	u16 pa1b1;
+	u16 pa1b2;
+	u8 gpio0;		/* GPIO pin 0 */
+	u8 gpio1;		/* GPIO pin 1 */
+	u8 gpio2;		/* GPIO pin 2 */
+	u8 gpio3;		/* GPIO pin 3 */
+	u16 maxpwr_a;		/* A-PHY Amplifier Max Power (in dBm Q5.2) */
+	u16 maxpwr_bg;		/* B/G-PHY Amplifier Max Power (in dBm Q5.2) */
+	u8 itssi_a;		/* Idle TSSI Target for A-PHY */
+	u8 itssi_bg;		/* Idle TSSI Target for B/G-PHY */
+	u16 boardflags_lo;	/* Boardflags (low 16 bits) */
+	u8 antenna_gain_a;	/* A-PHY Antenna gain (in dBm Q5.2) */
+	u8 antenna_gain_bg;	/* B/G-PHY Antenna gain (in dBm Q5.2) */
+
+	/* TODO - add any parameters needed from rev 2, 3, or 4 SPROMs */
 	/* The valid r# fields are selected by the "revision".
 	 * Revision 3 and lower inherit from lower revisions.
 	 */
@@ -94,7 +115,6 @@
 			struct ssb_sprom_r2 r2;
 			struct ssb_sprom_r3 r3;
 		};
-		struct ssb_sprom_r4 r4;
 	};
 };
 
diff --git a/include/linux/ssb/ssb_regs.h b/include/linux/ssb/ssb_regs.h
index 47c7c71..bcebcff 100644
--- a/include/linux/ssb/ssb_regs.h
+++ b/include/linux/ssb/ssb_regs.h
@@ -250,6 +250,38 @@
 #define  SSB_SPROM3_CCKPO_11M		0xF000	/* 11M Rate PO */
 #define  SSB_SPROM3_CCKPO_11M_SHIFT	12
 #define  SSB_SPROM3_OFDMGPO		0x107A	/* G-PHY OFDM Power Offset (4 bytes, BigEndian) */
+/* SPROM Revision 4 */
+#define SSB_SPROM4_IL0MAC		0x104C	/* 6 byte MAC address for b/g */
+#define SSB_SPROM4_ETHPHY		0x105A	/* Ethernet PHY settings */
+#define  SSB_SPROM4_ETHPHY_ET0A		0x001F	/* MII Address for enet0 */
+#define  SSB_SPROM4_ETHPHY_ET1A		0x03E0	/* MII Address for enet1 */
+#define  SSB_SPROM4_ETHPHY_ET1A_SHIFT	5
+#define  SSB_SPROM4_ETHPHY_ET0M		(1<<14)	/* MDIO for enet0 */
+#define  SSB_SPROM4_ETHPHY_ET1M		(1<<15)	/* MDIO for enet1 */
+#define SSB_SPROM4_CCODE		0x1052	/* Country Code (2 bytes) */
+#define SSB_SPROM4_ANT_A		0x105D  /* A Antennas */
+#define SSB_SPROM4_ANT_BG		0x105C  /* B/G Antennas */
+#define SSB_SPROM4_BFLLO		0x1044	/* Boardflags (low 16 bits) */
+#define SSB_SPROM4_AGAIN		0x105E	/* Antenna Gain (in dBm Q5.2) */
+#define SSB_SPROM4_BFLHI		0x1046  /* Board Flags Hi */
+#define SSB_SPROM4_MAXP_A		0x1000  /* Max Power A */
+#define SSB_SPROM4_MAXP_A_HI		0x00FF  /* Mask for Hi */
+#define SSB_SPROM4_MAXP_A_LO		0xFF00  /* Mask for Lo */
+#define SSB_SPROM4_MAXP_A_LO_SHIFT	16	/* Shift for Lo */
+#define SSB_SPROM4_PA1LOB0		0x1000
+#define SSB_SPROM4_PA1LOB1		0x1000
+#define SSB_SPROM4_PA1LOB2		0x1000
+#define SSB_SPROM4_PA1HIB0		0x1000
+#define SSB_SPROM4_PA1HIB1		0x1000
+#define SSB_SPROM4_PA1HIB2		0x1000
+#define SSB_SPROM4_OPO			0x1000
+#define SSB_SPROM4_OPO_VALUE		0x0000
+#define SSB_SPROM4_GPIOLDC		0x105A	/* LED Powersave Duty Cycle */
+#define  SSB_SPROM4_GPIOLDC_OFF		0x0000FF00	/* Off Count */
+#define  SSB_SPROM4_GPIOLDC_OFF_SHIFT	8
+#define  SSB_SPROM4_GPIOLDC_ON		0x00FF0000	/* On Count */
+#define  SSB_SPROM4_GPIOLDC_ON_SHIFT	16
+
 
 /* Values for SSB_SPROM1_BINF_CCODE */
 enum {