--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -168,6 +168,7 @@ config SSB_DRIVER_GIGE
 config SSB_DRIVER_GPIO
 	bool "SSB GPIO driver"
 	depends on SSB && GPIOLIB
+	select IRQ_DOMAIN if SSB_EMBEDDED
 	help
 	  Driver to provide access to the GPIO pins on the bus.
 
--- a/drivers/ssb/driver_chipcommon_sflash.c
+++ b/drivers/ssb/driver_chipcommon_sflash.c
@@ -37,7 +37,7 @@ static const struct ssb_sflash_tbl_e ssb
 	{ "M25P32", 0x15, 0x10000, 64, },
 	{ "M25P64", 0x16, 0x10000, 128, },
 	{ "M25FL128", 0x17, 0x10000, 256, },
-	{ 0 },
+	{ NULL },
 };
 
 static const struct ssb_sflash_tbl_e ssb_sflash_sst_tbl[] = {
@@ -55,7 +55,7 @@ static const struct ssb_sflash_tbl_e ssb
 	{ "SST25VF016", 0x41, 0x1000, 512, },
 	{ "SST25VF032", 0x4a, 0x1000, 1024, },
 	{ "SST25VF064", 0x4b, 0x1000, 2048, },
-	{ 0 },
+	{ NULL },
 };
 
 static const struct ssb_sflash_tbl_e ssb_sflash_at_tbl[] = {
@@ -66,7 +66,7 @@ static const struct ssb_sflash_tbl_e ssb
 	{ "AT45DB161", 0x2c, 512, 4096, },
 	{ "AT45DB321", 0x34, 512, 8192, },
 	{ "AT45DB642", 0x3c, 1024, 8192, },
-	{ 0 },
+	{ NULL },
 };
 
 static void ssb_sflash_cmd(struct ssb_chipcommon *cc, u32 opcode)
--- a/drivers/ssb/driver_gpio.c
+++ b/drivers/ssb/driver_gpio.c
@@ -9,16 +9,40 @@
  */
 
 #include <linux/gpio.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/irqdomain.h>
 #include <linux/export.h>
 #include <linux/ssb/ssb.h>
 
 #include "ssb_private.h"
 
+
+/**************************************************
+ * Shared
+ **************************************************/
+
 static struct ssb_bus *ssb_gpio_get_bus(struct gpio_chip *chip)
 {
 	return container_of(chip, struct ssb_bus, gpio);
 }
 
+#if IS_ENABLED(CONFIG_SSB_EMBEDDED)
+static int ssb_gpio_to_irq(struct gpio_chip *chip, unsigned gpio)
+{
+	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+
+	if (bus->bustype == SSB_BUSTYPE_SSB)
+		return irq_find_mapping(bus->irq_domain, gpio);
+	else
+		return -EINVAL;
+}
+#endif
+
+/**************************************************
+ * ChipCommon
+ **************************************************/
+
 static int ssb_gpio_chipco_get_value(struct gpio_chip *chip, unsigned gpio)
 {
 	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
@@ -74,19 +98,129 @@ static void ssb_gpio_chipco_free(struct
 	ssb_chipco_gpio_pullup(&bus->chipco, 1 << gpio, 0);
 }
 
-static int ssb_gpio_chipco_to_irq(struct gpio_chip *chip, unsigned gpio)
+#if IS_ENABLED(CONFIG_SSB_EMBEDDED)
+static void ssb_gpio_irq_chipco_mask(struct irq_data *d)
 {
-	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+	struct ssb_bus *bus = irq_data_get_irq_chip_data(d);
+	int gpio = irqd_to_hwirq(d);
 
-	if (bus->bustype == SSB_BUSTYPE_SSB)
-		return ssb_mips_irq(bus->chipco.dev) + 2;
-	else
-		return -EINVAL;
+	ssb_chipco_gpio_intmask(&bus->chipco, BIT(gpio), 0);
+}
+
+static void ssb_gpio_irq_chipco_unmask(struct irq_data *d)
+{
+	struct ssb_bus *bus = irq_data_get_irq_chip_data(d);
+	int gpio = irqd_to_hwirq(d);
+	u32 val = ssb_chipco_gpio_in(&bus->chipco, BIT(gpio));
+
+	ssb_chipco_gpio_polarity(&bus->chipco, BIT(gpio), val);
+	ssb_chipco_gpio_intmask(&bus->chipco, BIT(gpio), BIT(gpio));
+}
+
+static struct irq_chip ssb_gpio_irq_chipco_chip = {
+	.name		= "SSB-GPIO-CC",
+	.irq_mask	= ssb_gpio_irq_chipco_mask,
+	.irq_unmask	= ssb_gpio_irq_chipco_unmask,
+};
+
+static irqreturn_t ssb_gpio_irq_chipco_handler(int irq, void *dev_id)
+{
+	struct ssb_bus *bus = dev_id;
+	struct ssb_chipcommon *chipco = &bus->chipco;
+	u32 val = chipco_read32(chipco, SSB_CHIPCO_GPIOIN);
+	u32 mask = chipco_read32(chipco, SSB_CHIPCO_GPIOIRQ);
+	u32 pol = chipco_read32(chipco, SSB_CHIPCO_GPIOPOL);
+	unsigned long irqs = (val ^ pol) & mask;
+	int gpio;
+
+	if (!irqs)
+		return IRQ_NONE;
+
+	for_each_set_bit(gpio, &irqs, bus->gpio.ngpio)
+		generic_handle_irq(ssb_gpio_to_irq(&bus->gpio, gpio));
+	ssb_chipco_gpio_polarity(chipco, irqs, val & irqs);
+
+	return IRQ_HANDLED;
+}
+
+static int ssb_gpio_irq_chipco_domain_init(struct ssb_bus *bus)
+{
+	struct ssb_chipcommon *chipco = &bus->chipco;
+	struct gpio_chip *chip = &bus->gpio;
+	int gpio, hwirq, err;
+
+	if (bus->bustype != SSB_BUSTYPE_SSB)
+		return 0;
+
+	bus->irq_domain = irq_domain_add_linear(NULL, chip->ngpio,
+						&irq_domain_simple_ops, chipco);
+	if (!bus->irq_domain) {
+		err = -ENODEV;
+		goto err_irq_domain;
+	}
+	for (gpio = 0; gpio < chip->ngpio; gpio++) {
+		int irq = irq_create_mapping(bus->irq_domain, gpio);
+
+		irq_set_chip_data(irq, bus);
+		irq_set_chip_and_handler(irq, &ssb_gpio_irq_chipco_chip,
+					 handle_simple_irq);
+	}
+
+	hwirq = ssb_mips_irq(bus->chipco.dev) + 2;
+	err = request_irq(hwirq, ssb_gpio_irq_chipco_handler, IRQF_SHARED,
+			  "gpio", bus);
+	if (err)
+		goto err_req_irq;
+
+	ssb_chipco_gpio_intmask(&bus->chipco, ~0, 0);
+	chipco_set32(chipco, SSB_CHIPCO_IRQMASK, SSB_CHIPCO_IRQ_GPIO);
+
+	return 0;
+
+err_req_irq:
+	for (gpio = 0; gpio < chip->ngpio; gpio++) {
+		int irq = irq_find_mapping(bus->irq_domain, gpio);
+
+		irq_dispose_mapping(irq);
+	}
+	irq_domain_remove(bus->irq_domain);
+err_irq_domain:
+	return err;
+}
+
+static void ssb_gpio_irq_chipco_domain_exit(struct ssb_bus *bus)
+{
+	struct ssb_chipcommon *chipco = &bus->chipco;
+	struct gpio_chip *chip = &bus->gpio;
+	int gpio;
+
+	if (bus->bustype != SSB_BUSTYPE_SSB)
+		return;
+
+	chipco_mask32(chipco, SSB_CHIPCO_IRQMASK, ~SSB_CHIPCO_IRQ_GPIO);
+	free_irq(ssb_mips_irq(bus->chipco.dev) + 2, chipco);
+	for (gpio = 0; gpio < chip->ngpio; gpio++) {
+		int irq = irq_find_mapping(bus->irq_domain, gpio);
+
+		irq_dispose_mapping(irq);
+	}
+	irq_domain_remove(bus->irq_domain);
+}
+#else
+static int ssb_gpio_irq_chipco_domain_init(struct ssb_bus *bus)
+{
+	return 0;
+}
+
+static void ssb_gpio_irq_chipco_domain_exit(struct ssb_bus *bus)
+{
 }
+#endif
 
 static int ssb_gpio_chipco_init(struct ssb_bus *bus)
 {
 	struct gpio_chip *chip = &bus->gpio;
+	int err;
 
 	chip->label		= "ssb_chipco_gpio";
 	chip->owner		= THIS_MODULE;
@@ -96,7 +230,9 @@ static int ssb_gpio_chipco_init(struct s
 	chip->set		= ssb_gpio_chipco_set_value;
 	chip->direction_input	= ssb_gpio_chipco_direction_input;
 	chip->direction_output	= ssb_gpio_chipco_direction_output;
-	chip->to_irq		= ssb_gpio_chipco_to_irq;
+#if IS_ENABLED(CONFIG_SSB_EMBEDDED)
+	chip->to_irq		= ssb_gpio_to_irq;
+#endif
 	chip->ngpio		= 16;
 	/* There is just one SoC in one device and its GPIO addresses should be
 	 * deterministic to address them more easily. The other buses could get
@@ -106,9 +242,23 @@ static int ssb_gpio_chipco_init(struct s
 	else
 		chip->base		= -1;
 
-	return gpiochip_add(chip);
+	err = ssb_gpio_irq_chipco_domain_init(bus);
+	if (err)
+		return err;
+
+	err = gpiochip_add(chip);
+	if (err) {
+		ssb_gpio_irq_chipco_domain_exit(bus);
+		return err;
+	}
+
+	return 0;
 }
 
+/**************************************************
+ * EXTIF
+ **************************************************/
+
 #ifdef CONFIG_SSB_DRIVER_EXTIF
 
 static int ssb_gpio_extif_get_value(struct gpio_chip *chip, unsigned gpio)
@@ -145,19 +295,127 @@ static int ssb_gpio_extif_direction_outp
 	return 0;
 }
 
-static int ssb_gpio_extif_to_irq(struct gpio_chip *chip, unsigned gpio)
+#if IS_ENABLED(CONFIG_SSB_EMBEDDED)
+static void ssb_gpio_irq_extif_mask(struct irq_data *d)
 {
-	struct ssb_bus *bus = ssb_gpio_get_bus(chip);
+	struct ssb_bus *bus = irq_data_get_irq_chip_data(d);
+	int gpio = irqd_to_hwirq(d);
 
-	if (bus->bustype == SSB_BUSTYPE_SSB)
-		return ssb_mips_irq(bus->extif.dev) + 2;
-	else
-		return -EINVAL;
+	ssb_extif_gpio_intmask(&bus->extif, BIT(gpio), 0);
+}
+
+static void ssb_gpio_irq_extif_unmask(struct irq_data *d)
+{
+	struct ssb_bus *bus = irq_data_get_irq_chip_data(d);
+	int gpio = irqd_to_hwirq(d);
+	u32 val = ssb_extif_gpio_in(&bus->extif, BIT(gpio));
+
+	ssb_extif_gpio_polarity(&bus->extif, BIT(gpio), val);
+	ssb_extif_gpio_intmask(&bus->extif, BIT(gpio), BIT(gpio));
+}
+
+static struct irq_chip ssb_gpio_irq_extif_chip = {
+	.name		= "SSB-GPIO-EXTIF",
+	.irq_mask	= ssb_gpio_irq_extif_mask,
+	.irq_unmask	= ssb_gpio_irq_extif_unmask,
+};
+
+static irqreturn_t ssb_gpio_irq_extif_handler(int irq, void *dev_id)
+{
+	struct ssb_bus *bus = dev_id;
+	struct ssb_extif *extif = &bus->extif;
+	u32 val = ssb_read32(extif->dev, SSB_EXTIF_GPIO_IN);
+	u32 mask = ssb_read32(extif->dev, SSB_EXTIF_GPIO_INTMASK);
+	u32 pol = ssb_read32(extif->dev, SSB_EXTIF_GPIO_INTPOL);
+	unsigned long irqs = (val ^ pol) & mask;
+	int gpio;
+
+	if (!irqs)
+		return IRQ_NONE;
+
+	for_each_set_bit(gpio, &irqs, bus->gpio.ngpio)
+		generic_handle_irq(ssb_gpio_to_irq(&bus->gpio, gpio));
+	ssb_extif_gpio_polarity(extif, irqs, val & irqs);
+
+	return IRQ_HANDLED;
+}
+
+static int ssb_gpio_irq_extif_domain_init(struct ssb_bus *bus)
+{
+	struct ssb_extif *extif = &bus->extif;
+	struct gpio_chip *chip = &bus->gpio;
+	int gpio, hwirq, err;
+
+	if (bus->bustype != SSB_BUSTYPE_SSB)
+		return 0;
+
+	bus->irq_domain = irq_domain_add_linear(NULL, chip->ngpio,
+						&irq_domain_simple_ops, extif);
+	if (!bus->irq_domain) {
+		err = -ENODEV;
+		goto err_irq_domain;
+	}
+	for (gpio = 0; gpio < chip->ngpio; gpio++) {
+		int irq = irq_create_mapping(bus->irq_domain, gpio);
+
+		irq_set_chip_data(irq, bus);
+		irq_set_chip_and_handler(irq, &ssb_gpio_irq_extif_chip,
+					 handle_simple_irq);
+	}
+
+	hwirq = ssb_mips_irq(bus->extif.dev) + 2;
+	err = request_irq(hwirq, ssb_gpio_irq_extif_handler, IRQF_SHARED,
+			  "gpio", bus);
+	if (err)
+		goto err_req_irq;
+
+	ssb_extif_gpio_intmask(&bus->extif, ~0, 0);
+
+	return 0;
+
+err_req_irq:
+	for (gpio = 0; gpio < chip->ngpio; gpio++) {
+		int irq = irq_find_mapping(bus->irq_domain, gpio);
+
+		irq_dispose_mapping(irq);
+	}
+	irq_domain_remove(bus->irq_domain);
+err_irq_domain:
+	return err;
 }
 
+static void ssb_gpio_irq_extif_domain_exit(struct ssb_bus *bus)
+{
+	struct ssb_extif *extif = &bus->extif;
+	struct gpio_chip *chip = &bus->gpio;
+	int gpio;
+
+	if (bus->bustype != SSB_BUSTYPE_SSB)
+		return;
+
+	free_irq(ssb_mips_irq(bus->extif.dev) + 2, extif);
+	for (gpio = 0; gpio < chip->ngpio; gpio++) {
+		int irq = irq_find_mapping(bus->irq_domain, gpio);
+
+		irq_dispose_mapping(irq);
+	}
+	irq_domain_remove(bus->irq_domain);
+}
+#else
+static int ssb_gpio_irq_extif_domain_init(struct ssb_bus *bus)
+{
+	return 0;
+}
+
+static void ssb_gpio_irq_extif_domain_exit(struct ssb_bus *bus)
+{
+}
+#endif
+
 static int ssb_gpio_extif_init(struct ssb_bus *bus)
 {
 	struct gpio_chip *chip = &bus->gpio;
+	int err;
 
 	chip->label		= "ssb_extif_gpio";
 	chip->owner		= THIS_MODULE;
@@ -165,7 +423,9 @@ static int ssb_gpio_extif_init(struct ss
 	chip->set		= ssb_gpio_extif_set_value;
 	chip->direction_input	= ssb_gpio_extif_direction_input;
 	chip->direction_output	= ssb_gpio_extif_direction_output;
-	chip->to_irq		= ssb_gpio_extif_to_irq;
+#if IS_ENABLED(CONFIG_SSB_EMBEDDED)
+	chip->to_irq		= ssb_gpio_to_irq;
+#endif
 	chip->ngpio		= 5;
 	/* There is just one SoC in one device and its GPIO addresses should be
 	 * deterministic to address them more easily. The other buses could get
@@ -175,7 +435,17 @@ static int ssb_gpio_extif_init(struct ss
 	else
 		chip->base		= -1;
 
-	return gpiochip_add(chip);
+	err = ssb_gpio_irq_extif_domain_init(bus);
+	if (err)
+		return err;
+
+	err = gpiochip_add(chip);
+	if (err) {
+		ssb_gpio_irq_extif_domain_exit(bus);
+		return err;
+	}
+
+	return 0;
 }
 
 #else
@@ -185,6 +455,10 @@ static int ssb_gpio_extif_init(struct ss
 }
 #endif
 
+/**************************************************
+ * Init
+ **************************************************/
+
 int ssb_gpio_init(struct ssb_bus *bus)
 {
 	if (ssb_chipco_available(&bus->chipco))
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -593,6 +593,13 @@ static int ssb_attach_queued_buses(void)
 		ssb_pcicore_init(&bus->pcicore);
 		if (bus->bustype == SSB_BUSTYPE_SSB)
 			ssb_watchdog_register(bus);
+
+		err = ssb_gpio_init(bus);
+		if (err == -ENOTSUPP)
+			ssb_dbg("GPIO driver not activated\n");
+		else if (err)
+			ssb_dbg("Error registering GPIO driver: %i\n", err);
+
 		ssb_bus_may_powerdown(bus);
 
 		err = ssb_devices_register(bus);
@@ -830,11 +837,6 @@ static int ssb_bus_register(struct ssb_b
 	ssb_chipcommon_init(&bus->chipco);
 	ssb_extif_init(&bus->extif);
 	ssb_mipscore_init(&bus->mipscore);
-	err = ssb_gpio_init(bus);
-	if (err == -ENOTSUPP)
-		ssb_dbg("GPIO driver not activated\n");
-	else if (err)
-		ssb_dbg("Error registering GPIO driver: %i\n", err);
 	err = ssb_fetch_invariants(bus, get_invariants);
 	if (err) {
 		ssb_bus_may_powerdown(bus);
--- 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. */
@@ -486,6 +487,7 @@ struct ssb_bus {
 #endif /* EMBEDDED */
 #ifdef CONFIG_SSB_DRIVER_GPIO
 	struct gpio_chip gpio;
+	struct irq_domain *irq_domain;
 #endif /* DRIVER_GPIO */
 
 	/* Internal-only stuff follows. Do not touch. */
--- 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);