brcm43xx: update SSB driver * files/ now contains the wireless-dev tree version * patches/210-ssb_merge is nbd's subsequent changes

SVN-Revision: 7691

10 files changed, 765 insertions, 221 deletions

diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/Kconfig b/target/linux/brcm47xx-2.6/files/drivers/ssb/Kconfig
index 09330dfa6b..03c4945868 100644
--- a/target/linux/brcm47xx-2.6/files/drivers/ssb/Kconfig
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/Kconfig
@@ -71,4 +71,23 @@ config SSB_PCICORE_HOSTMODE
 	help
 	  PCIcore hostmode operation (external PCI bus).
 
+config SSB_DRIVER_MIPS
+	bool "SSB Broadcom MIPS core driver"
+	depends on SSB && MIPS
+	select SSB_SERIAL
+	help
+	  Driver for the Sonics Silicon Backplane attached
+	  Broadcom MIPS core.
+
+	  If unsure, say N
+
+config SSB_DRIVER_EXTIF
+	bool "SSB Broadcom EXTIF core driver"
+	depends on SSB_DRIVER_MIPS
+	help
+	  Driver for the Sonics Silicon Backplane attached
+	  Broadcom EXTIF core.
+
+	  If unsure, say N
+
 endmenu
diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/Makefile b/target/linux/brcm47xx-2.6/files/drivers/ssb/Makefile
index 9f85d225dd..9a2b379fbf 100644
--- a/target/linux/brcm47xx-2.6/files/drivers/ssb/Makefile
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/Makefile
@@ -1,14 +1,11 @@
-ssb-driver-chipcommon-y				:= driver_chipcommon/chipcommon.o
-ssb-driver-mips-$(CONFIG_BCM947XX)	:= driver_mips/mips.o
-ssb-driver-pci-$(CONFIG_SSB_DRIVER_PCICORE)	:= driver_pci/pcicore.o
+ssb-builtin-drivers-y					+= driver_chipcommon.o
+ssb-builtin-drivers-$(CONFIG_SSB_DRIVER_MIPS)		+= driver_mipscore.o
+ssb-builtin-drivers-$(CONFIG_SSB_DRIVER_PCICORE)	+= driver_pcicore.o
 
-ssb-$(CONFIG_SSB_PCIHOST)			+= pci.o
-ssb-$(CONFIG_SSB_PCMCIAHOST)			+= pcmcia.o
+ssb-hostsupport-$(CONFIG_SSB_PCIHOST)			+= pci.o pcihost_wrapper.o
+ssb-hostsupport-$(CONFIG_SSB_PCMCIAHOST)		+= pcmcia.o
 
 obj-$(CONFIG_SSB) += ssb.o
 
-ssb-objs	:= core.o scan.o \
-		   $(ssb-y) $(ssb-m) \
-		   $(ssb-driver-chipcommon-y) \
-		   $(ssb-driver-mips-y) \
-		   $(ssb-driver-pci-y)
+ssb-objs	:= main.o scan.o \
+		   $(ssb-hostsupport-y) $(ssb-builtin-drivers-y)
diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon/chipcommon.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon.c
index a17910947e..8e511c77b5 100644
--- a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon/chipcommon.c
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_chipcommon.c
@@ -12,7 +12,7 @@
 #include <linux/ssb/ssb_regs.h>
 #include <linux/pci.h>
 
-#include "../ssb_private.h"
+#include "ssb_private.h"
 
 
 /* Clock sources */
@@ -39,7 +39,6 @@ static inline void chipco_write32(struct ssb_chipcommon *cc,
 	ssb_write32(cc->dev, offset, value);
 }
 
-
 void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
 			      enum ssb_clkmode mode)
 {
@@ -89,7 +88,6 @@ void ssb_chipco_set_clockmode(struct ssb_chipcommon *cc,
 		assert(0);
 	}
 }
-EXPORT_SYMBOL(ssb_chipco_set_clockmode);
 
 /* Get the Slow Clock Source */
 static int chipco_pctl_get_slowclksrc(struct ssb_chipcommon *cc)
@@ -98,8 +96,8 @@ static int chipco_pctl_get_slowclksrc(struct ssb_chipcommon *cc)
 	u32 tmp = 0;
 
 	if (cc->dev->id.revision < 6) {
-		if (bus->bustype == SSB_BUSTYPE_SSB /*TODO ||
-		    bus->bustype == SSB_BUSTYPE_PCMCIA*/)
+		if (bus->bustype == SSB_BUSTYPE_SSB ||
+		    bus->bustype == SSB_BUSTYPE_PCMCIA)
 			return SSB_CHIPCO_CLKSRC_XTALOS;
 		if (bus->bustype == SSB_BUSTYPE_PCI) {
 			pci_read_config_dword(bus->host_pci, SSB_GPIO_OUT, &tmp);
@@ -246,8 +244,8 @@ void ssb_chipcommon_init(struct ssb_chipcommon *cc)
 {
 	if (!cc->dev)
 		return; /* We don't have a ChipCommon */
-	ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
 	chipco_powercontrol_init(cc);
+	ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
 	calc_fast_powerup_delay(cc);
 }
 
@@ -262,37 +260,8 @@ void ssb_chipco_resume(struct ssb_chipcommon *cc)
 {
 	if (!cc->dev)
 		return;
-	ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
 	chipco_powercontrol_init(cc);
-}
-
-void ssb_chipco_get_clockcpu(struct ssb_chipcommon *cc, u32 chip_id, u32 *rate,
-			     u32 *plltype, u32 *n, u32 *m)
-{
-	*rate = 0;
-	*n = chipco_read32(cc, SSB_CHIPCO_CLOCK_N);
-	*plltype = (cc->capabilities & SSB_CHIPCO_CAP_PLLT);
-	switch (*plltype) {
-		case SSB_PLLTYPE_2:
-		case SSB_PLLTYPE_4:
-		case SSB_PLLTYPE_6:
-		case SSB_PLLTYPE_7:
-			*m = chipco_read32(cc, SSB_CHIPCO_CLOCK_MIPS);
-			break;
-		case SSB_PLLTYPE_5:
-			*rate = 200000000;
-			break;
-		case SSB_PLLTYPE_3:
-			/* 5350 uses m2 to control mips */
-			*m = chipco_read32(cc, SSB_CHIPCO_CLOCK_M2);
-			break;
-		default:
-			*m = chipco_read32(cc, SSB_CHIPCO_CLOCK_SB);
-			break;
-	}
-
-	if (*rate == 0 && chip_id == 0x5365)
-		*rate = 200000000;
+	ssb_chipco_set_clockmode(cc, SSB_CLKMODE_FAST);
 }
 
 void ssb_chipco_get_clockcontrol(struct ssb_chipcommon *cc,
@@ -351,6 +320,7 @@ void ssb_chipco_timing_init(struct ssb_chipcommon *cc,
 	}
 }
 
+
 #ifdef CONFIG_SSB_SERIAL
 int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
 			   struct ssb_serial_port *ports)
@@ -430,13 +400,3 @@ int ssb_chipco_serial_init(struct ssb_chipcommon *cc,
 	return nr_ports;
 }
 #endif /* CONFIG_SSB_SERIAL */
-
-/* Set chip watchdog reset timer to fire in 'ticks' backplane cycles */
-int
-ssb_chipco_watchdog(struct ssb_chipcommon *cc, uint ticks)
-{
-	/* instant NMI */
-	chipco_write32(cc, SSB_CHIPCO_WATCHDOG, ticks);
-	return 0;
-}
-EXPORT_SYMBOL(ssb_chipco_watchdog);
diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_mips/mips.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_mipscore.c
index 7b3880ab01..67d10178b6 100644
--- a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_mips/mips.c
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_mipscore.c
@@ -4,7 +4,6 @@
  *
  * Copyright 2005, Broadcom Corporation
  * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de>
- * Copyright 2006, 2007, Felix Fietkau <nbd@openwrt.org>
  *
  * Licensed under the GNU/GPL. See COPYING for details.
  */
@@ -16,12 +15,21 @@
 #include <linux/serial_reg.h>
 #include <asm/time.h>
 
-#include "../ssb_private.h"
+#include "ssb_private.h"
 
-#define mips_read32(mcore, offset) ssb_read32((mcore)->dev, offset)
-#define mips_write32(mcore, offset, value) ssb_write32((mcore)->dev, offset, value)
-#define extif_read32(extif, offset) ssb_read32((extif)->dev, offset)
-#define extif_write32(extif, offset, value) ssb_write32((extif)->dev, offset, value)
+
+static inline u32 mips_read32(struct ssb_mipscore *mcore,
+			      u16 offset)
+{
+	return ssb_read32(mcore->dev, offset);
+}
+
+static inline void mips_write32(struct ssb_mipscore *mcore,
+				u16 offset,
+				u32 value)
+{
+	ssb_write32(mcore->dev, offset, value);
+}
 
 static const u32 ipsflag_irq_mask[] = {
 	0,
@@ -109,8 +117,17 @@ static void set_irq(struct ssb_device *dev, unsigned int irq)
 	ssb_write32(mdev, SSB_IPSFLAG, irqflag);
 }
 
-static int ssb_extif_serial_init(struct ssb_extif *dev, struct ssb_serial_port *ports)
+/* XXX: leave here or move into separate extif driver? */
+static int ssb_extif_serial_init(struct ssb_device *dev, struct ssb_serial_ports *ports)
+{
+
+}
+
+
+static void ssb_mips_serial_init(struct ssb_mipscore *mcore)
 {
+	struct ssb_bus *bus = mcore->dev->bus;
+
 	//TODO if (EXTIF available
 #if 0
 		extifregs_t *eir = (extifregs_t *) regs;
@@ -145,14 +162,6 @@ static int ssb_extif_serial_init(struct ssb_extif *dev, struct ssb_serial_port *
 				add((void *) &eir->uartdata, irq, sb_clock(sbh), 2);
 
 #endif
-
-}
-
-
-static void ssb_mips_serial_init(struct ssb_mipscore *mcore)
-{
-	struct ssb_bus *bus = mcore->dev->bus;
-
 	if (bus->extif.dev)
 		mcore->nr_serial_ports = ssb_extif_serial_init(&bus->extif, mcore->serial_ports);
 	else if (bus->chipco.dev)
@@ -165,68 +174,18 @@ static void ssb_mips_flash_detect(struct ssb_mipscore *mcore)
 {
 	struct ssb_bus *bus = mcore->dev->bus;
 
-	mcore->flash_buswidth = 2;
 	if (bus->chipco.dev) {
 		mcore->flash_window = 0x1c000000;
-		mcore->flash_window_size = 0x02000000;
-		if ((ssb_read32(bus->chipco.dev, SSB_CHIPCO_FLASH_CFG)
-				& SSB_CHIPCO_CFG_DS16) == 0)
-			mcore->flash_buswidth = 1;
+		mcore->flash_window_size = 0x800000;
 	} else {
 		mcore->flash_window = 0x1fc00000;
-		mcore->flash_window_size = 0x00400000;
+		mcore->flash_window_size = 0x400000;
 	}
 }
 
-static void ssb_extif_timing_init(struct ssb_extif *extif, u32 ns)
-{
-	u32 tmp;
-
-	/* Initialize extif so we can get to the LEDs and external UART */
-	extif_write32(extif, SSB_EXTIF_PROG_CFG, SSB_EXTCFG_EN);
-	
-	/* Set timing for the flash */
-	tmp  = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT;
-	tmp |= ceildiv(40, ns) << SSB_PROG_WCNT_1_SHIFT;
-	tmp |= ceildiv(120, ns);
-	extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
-
-	/* Set programmable interface timing for external uart */
-	tmp  = ceildiv(10, ns) << SSB_PROG_WCNT_3_SHIFT;
-	tmp |= ceildiv(20, ns) << SSB_PROG_WCNT_2_SHIFT;
-	tmp |= ceildiv(100, ns) << SSB_PROG_WCNT_1_SHIFT;
-	tmp |= ceildiv(120, ns);
-	extif_write32(extif, SSB_EXTIF_PROG_WAITCNT, tmp);
-}
-
-static inline void ssb_extif_get_clockcontrol(struct ssb_extif *extif,
-				 u32 *pll_type, u32 *n, u32 *m)
-{
-	*pll_type = SSB_PLLTYPE_1;
-	*n = extif_read32(extif, SSB_EXTIF_CLOCK_N);
-	*m = extif_read32(extif, SSB_EXTIF_CLOCK_SB);
-}
 
-u32 ssb_cpu_clock(struct ssb_mipscore *mcore)
+static void ssb_cpu_clock(struct ssb_mipscore *mcore)
 {
-	struct ssb_bus *bus = mcore->dev->bus;
-	u32 pll_type, n, m, rate = 0;
-
-	if (bus->extif.dev) {
-		ssb_extif_get_clockcontrol(&bus->extif, &pll_type, &n, &m);
-	} else if (bus->chipco.dev) {
-		ssb_chipco_get_clockcpu(&bus->chipco, bus->chip_id, &rate,
-			&pll_type, &n, &m);
-	} else
-		return 0;
-
-	if (rate == 0)
-		rate = ssb_calc_clock_rate(pll_type, n, m);
-
-	if (pll_type == SSB_PLLTYPE_6)
-		rate *= 2;
-
-	return rate;
 }
 
 void ssb_mipscore_init(struct ssb_mipscore *mcore)
@@ -246,9 +205,28 @@ void ssb_mipscore_init(struct ssb_mipscore *mcore)
 		hz = 100000000;
 	ns = 1000000000 / hz;
 
-	if (bus->extif.dev)
-		ssb_extif_timing_init(&bus->extif, ns);
-	else if (bus->chipco.dev)
+//TODO
+#if 0
+	if (have EXTIF) {
+		/* Initialize extif so we can get to the LEDs and external UART */
+		W_REG(&eir->prog_config, CF_EN);
+
+		/* Set timing for the flash */
+		tmp = CEIL(10, ns) << FW_W3_SHIFT;	/* W3 = 10nS */
+		tmp = tmp | (CEIL(40, ns) << FW_W1_SHIFT); /* W1 = 40nS */
+		tmp = tmp | CEIL(120, ns);		/* W0 = 120nS */
+		W_REG(&eir->prog_waitcount, tmp);	/* 0x01020a0c for a 100Mhz clock */
+
+		/* Set programmable interface timing for external uart */
+		tmp = CEIL(10, ns) << FW_W3_SHIFT;	/* W3 = 10nS */
+		tmp = tmp | (CEIL(20, ns) << FW_W2_SHIFT); /* W2 = 20nS */
+		tmp = tmp | (CEIL(100, ns) << FW_W1_SHIFT); /* W1 = 100nS */
+		tmp = tmp | CEIL(120, ns);		/* W0 = 120nS */
+		W_REG(&eir->prog_waitcount, tmp);
+	}
+	else... chipcommon
+#endif
+	if (bus->chipco.dev)
 		ssb_chipco_timing_init(&bus->chipco, ns);
 
 	/* Assign IRQs to all cores on the bus, start with irq line 2, because serial usually takes 1 */
@@ -278,5 +256,3 @@ void ssb_mipscore_init(struct ssb_mipscore *mcore)
 	ssb_mips_serial_init(mcore);
 	ssb_mips_flash_detect(mcore);
 }
-
-EXPORT_SYMBOL(ssb_mips_irq);
diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pci/pcicore.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pcicore.c
index 3ad97036f2..a59dff083e 100644
--- a/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pci/pcicore.c
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/driver_pcicore.c
@@ -12,7 +12,8 @@
 #include <linux/pci.h>
 #include <linux/delay.h>
 
-#include "../ssb_private.h"
+#include "ssb_private.h"
+
 
 static inline
 u32 pcicore_read32(struct ssb_pcicore *pc, u16 offset)
@@ -92,9 +93,6 @@ static void __init ssb_fixup_pcibridge(struct pci_dev *dev)
 
 	/* Enable PCI bridge BAR1 prefetch and burst */
 	pci_write_config_dword(dev, SSB_BAR1_CONTROL, 3);
-
-	/* Make sure our latency is high enough to handle the devices behind us */
-	pci_write_config_byte(dev, PCI_LATENCY_TIMER, 0xa8);
 }
 DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge);
 
@@ -112,7 +110,7 @@ static u32 get_cfgspace_addr(struct ssb_pcicore *pc,
 
 	if (unlikely(pc->cardbusmode && dev > 1))
 		goto out;
-	if (bus == 0) {//FIXME busnumber ok?
+	if (bus == 0) {
 		/* Type 0 transaction */
 		if (unlikely(dev >= SSB_PCI_SLOT_MAX))
 			goto out;
@@ -164,7 +162,8 @@ static int ssb_extpci_read_config(struct ssb_pcicore *pc,
 		val = 0xffffffff;
 		goto unmap;
 	}
-	
+
+	val = readl(mmio);
 	val >>= (8 * (off & 3));
 
 	switch (len) {
@@ -212,10 +211,12 @@ static int ssb_extpci_write_config(struct ssb_pcicore *pc,
 
 	switch (len) {
 	case 1:
+		val = readl(mmio);
 		val &= ~(0xFF << (8 * (off & 3)));
 		val |= *((const u8 *)buf) << (8 * (off & 3));
 		break;
 	case 2:
+		val = readl(mmio);
 		val &= ~(0xFFFF << (8 * (off & 3)));
 		val |= *((const u16 *)buf) << (8 * (off & 3));
 		break;
@@ -223,7 +224,7 @@ static int ssb_extpci_write_config(struct ssb_pcicore *pc,
 		val = *((const u32 *)buf);
 		break;
 	}
-	writel(val, mmio);
+	writel(*((const u32 *)buf), mmio);
 
 	err = 0;
 unmap:
@@ -290,7 +291,10 @@ static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc)
 {
 	u32 val;
 
-	assert(!extpci_core);
+	if (extpci_core) {
+		WARN_ON(1);
+		return;
+	}
 	extpci_core = pc;
 
 	ssb_dprintk(KERN_INFO PFX "PCIcore in host mode found\n");
@@ -303,8 +307,6 @@ static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc)
 	udelay(150);
 	val |= SSB_PCICORE_CTL_RST; /* Deassert RST# */
 	pcicore_write32(pc, SSB_PCICORE_CTL, val);
-	val = SSB_PCICORE_ARBCTL_INTERN;
-	pcicore_write32(pc, SSB_PCICORE_ARBCTL, val); 
 	udelay(1);
 
 	//TODO cardbus mode
@@ -321,7 +323,10 @@ static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc)
 
 	/* Enable PCI bridge BAR0 prefetch and burst */
 	val = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY;
-	ssb_extpci_write_config(pc, 0, 0, 0, PCI_COMMAND, &val, 4);
+	ssb_extpci_write_config(pc, 0, 0, 0, PCI_COMMAND, &val, 2);
+	/* Clear error conditions */
+	val = 0;
+	ssb_extpci_write_config(pc, 0, 0, 0, PCI_STATUS, &val, 2);
 
 	/* Enable PCI interrupts */
 	pcicore_write32(pc, SSB_PCICORE_IMASK,
@@ -331,7 +336,6 @@ static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc)
 	 * The following needs change, if we want to port hostmode
 	 * to non-MIPS platform. */
 	set_io_port_base((unsigned long)ioremap_nocache(SSB_PCI_MEM, 0x04000000));
-	mdelay(300);
 	register_pci_controller(&ssb_pcicore_controller);
 }
 
@@ -383,7 +387,8 @@ void ssb_pcicore_init(struct ssb_pcicore *pc)
 	if (!dev)
 		return;
 	bus = dev->bus;
-	ssb_device_enable(dev, 0);
+	if (!ssb_device_is_enabled(dev))
+		ssb_device_enable(dev, 0);
 
 #ifdef CONFIG_SSB_PCICORE_HOSTMODE
 	pc->hostmode = pcicore_is_in_hostmode(pc);
diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/core.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/main.c
index 2ee13d2d36..a2d22312ca 100644
--- a/target/linux/brcm47xx-2.6/files/drivers/ssb/core.c
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/main.c
@@ -35,35 +35,55 @@ static LIST_HEAD(buses);
 static int nr_buses;
 static DEFINE_MUTEX(buses_mutex);
 
-#define ssb_buses_lock() do {			\
-	if (!is_early_boot())			\
-		mutex_lock(&buses_mutex);	\
-			} while (0)
+static void ssb_buses_lock(void);
+static void ssb_buses_unlock(void);
 
-#define ssb_buses_unlock() do {			\
-	if (!is_early_boot())			\
-		mutex_unlock(&buses_mutex);	\
-			} while (0)
 
+#ifdef CONFIG_SSB_PCIHOST
+struct ssb_bus * ssb_pci_dev_to_bus(struct pci_dev *pdev)
+{
+	struct ssb_bus *bus;
+
+	ssb_buses_lock();
+	list_for_each_entry(bus, &buses, list) {
+		if (bus->bustype == SSB_BUSTYPE_PCI &&
+		    bus->host_pci == pdev)
+			goto found;
+	}
+	bus = NULL;
+found:
+	ssb_buses_unlock();
+
+	return bus;
+}
+#endif /* CONFIG_SSB_PCIHOST */
 
 static struct ssb_device * ssb_device_get(struct ssb_device *dev)
 {
 	if (dev)
-		get_device(&dev->dev);
+		get_device(dev->dev);
 	return dev;
 }
 
 static void ssb_device_put(struct ssb_device *dev)
 {
 	if (dev)
-		put_device(&dev->dev);
+		put_device(dev->dev);
 }
 
-static void ssb_bus_resume(struct ssb_bus *bus)
+static int ssb_bus_resume(struct ssb_bus *bus)
 {
-printk("SSB BUS RESUME\n");
+	int err;
+
 	ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);
+	err = ssb_pcmcia_init(bus);
+	if (err) {
+		/* No need to disable XTAL, as we don't have one on PCMCIA. */
+		return err;
+	}
 	ssb_chipco_resume(&bus->chipco);
+
+	return 0;
 }
 
 static int ssb_device_resume(struct device *dev)
@@ -73,10 +93,12 @@ static int ssb_device_resume(struct device *dev)
 	struct ssb_bus *bus;
 	int err = 0;
 
-printk("SSB DEV RESUME\n");
 	bus = ssb_dev->bus;
-	if (bus->suspend_cnt == bus->nr_devices)
-		ssb_bus_resume(bus);
+	if (bus->suspend_cnt == bus->nr_devices) {
+		err = ssb_bus_resume(bus);
+		if (err)
+			return err;
+	}
 	bus->suspend_cnt--;
 	if (dev->driver) {
 		ssb_drv = drv_to_ssb_drv(dev->driver);
@@ -91,9 +113,15 @@ out:
 
 static void ssb_bus_suspend(struct ssb_bus *bus, pm_message_t state)
 {
-printk("SSB BUS SUSPEND\n");
-//	ssb_chipco_suspend(&bus->chipco, state);
-//	ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
+	ssb_chipco_suspend(&bus->chipco, state);
+	ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
+
+	/* Reset HW state information in memory, so that HW is
+	 * completely reinitialized on resume. */
+	bus->mapped_device = NULL;
+#ifdef CONFIG_SSB_DRIVER_PCICORE
+	bus->pcicore.setup_done = 0;
+#endif
 }
 
 static int ssb_device_suspend(struct device *dev, pm_message_t state)
@@ -103,7 +131,6 @@ static int ssb_device_suspend(struct device *dev, pm_message_t state)
 	struct ssb_bus *bus;
 	int err = 0;
 
-printk("SSB DEV SUSPEND\n");
 	if (dev->driver) {
 		ssb_drv = drv_to_ssb_drv(dev->driver);
 		if (ssb_drv && ssb_drv->suspend)
@@ -123,6 +150,57 @@ out:
 	return err;
 }
 
+#ifdef CONFIG_SSB_PCIHOST
+int ssb_devices_freeze(struct ssb_bus *bus)
+{
+	struct ssb_device *dev;
+	struct ssb_driver *drv;
+	int err = 0;
+	int i;
+	pm_message_t state = PMSG_FREEZE;
+
+	for (i = 0; i < bus->nr_devices; i++) {
+		dev = &(bus->devices[i]);
+		if (!dev->dev->driver)
+			continue;
+		if (!device_is_registered(dev->dev))
+			continue;
+		drv = drv_to_ssb_drv(dev->dev->driver);
+		if (drv && drv->suspend) {
+			err = drv->suspend(dev, state);
+			if (err)
+				goto out;
+		}
+	}
+out:
+	return err;
+}
+
+int ssb_devices_thaw(struct ssb_bus *bus)
+{
+	struct ssb_device *dev;
+	struct ssb_driver *drv;
+	int err = 0;
+	int i;
+
+	for (i = 0; i < bus->nr_devices; i++) {
+		dev = &(bus->devices[i]);
+		if (!dev->dev->driver)
+			continue;
+		if (!device_is_registered(dev->dev))
+			continue;
+		drv = drv_to_ssb_drv(dev->dev->driver);
+		if (drv && drv->resume) {
+			err = drv->resume(dev);
+			if (err)
+				goto out;
+		}
+	}
+out:
+	return err;
+}
+#endif /* CONFIG_SSB_PCIHOST */
+
 static void ssb_device_shutdown(struct device *dev)
 {
 	struct ssb_device *ssb_dev = dev_to_ssb_dev(dev);
@@ -193,7 +271,7 @@ static int ssb_bus_match(struct device *dev, struct device_driver *drv)
 	return 0;
 }
 
-struct bus_type ssb_bustype = {
+static struct bus_type ssb_bustype = {
 	.name		= NULL, /* Intentionally NULL to indicate early boot */
 	.match		= ssb_bus_match,
 	.probe		= ssb_device_probe,
@@ -205,51 +283,156 @@ struct bus_type ssb_bustype = {
 
 #define is_early_boot()		(ssb_bustype.name == NULL)
 
-void ssb_bus_unregister(struct ssb_bus *bus)
+static void ssb_buses_lock(void)
 {
-	struct ssb_device *dev;
+	if (!is_early_boot())
+		mutex_lock(&buses_mutex);
+}
+
+static void ssb_buses_unlock(void)
+{
+	if (!is_early_boot())
+		mutex_unlock(&buses_mutex);
+}
+
+static void ssb_devices_unregister(struct ssb_bus *bus)
+{
+	struct ssb_device *sdev;
 	int i;
 
-	ssb_buses_lock();
 	for (i = bus->nr_devices - 1; i >= 0; i--) {
-		dev = &(bus->devices[i]);
-		device_unregister(&dev->dev);
+		sdev = &(bus->devices[i]);
+		if (sdev->dev)
+			device_unregister(sdev->dev);
 	}
+}
+
+void ssb_bus_unregister(struct ssb_bus *bus)
+{
+	ssb_buses_lock();
+	ssb_devices_unregister(bus);
 	list_del(&bus->list);
 	ssb_buses_unlock();
 
+	/* ssb_pcmcia_exit(bus); */
+	ssb_pci_exit(bus);
 	ssb_iounmap(bus);
 }
 EXPORT_SYMBOL(ssb_bus_unregister);
 
 static void ssb_release_dev(struct device *dev)
 {
-	/* Nothing, devices are allocated together with struct ssb_bus. */
+	struct __ssb_dev_wrapper *devwrap;
+
+	devwrap = container_of(dev, struct __ssb_dev_wrapper, dev);
+	kfree(devwrap);
+}
+
+static int ssb_devices_register(struct ssb_bus *bus)
+{
+	struct ssb_device *sdev;
+	struct device *dev;
+	struct __ssb_dev_wrapper *devwrap;
+	int i, err = 0;
+	int dev_idx = 0;
+
+	for (i = 0; i < bus->nr_devices; i++) {
+		sdev = &(bus->devices[i]);
+
+		/* We don't register SSB-system devices to the kernel,
+		 * as the drivers for them are built into SSB. */
+		switch (sdev->id.coreid) {
+		case SSB_DEV_CHIPCOMMON:
+		case SSB_DEV_PCI:
+		case SSB_DEV_PCIE:
+		case SSB_DEV_PCMCIA:
+		case SSB_DEV_MIPS:
+		case SSB_DEV_MIPS_3302:
+		case SSB_DEV_EXTIF:
+			continue;
+		}
+
+		devwrap = kzalloc(sizeof(*devwrap), GFP_KERNEL);
+		if (!devwrap) {
+			ssb_printk(KERN_ERR PFX
+				   "Could not allocate device\n");
+			err = -ENOMEM;
+			goto error;
+		}
+		dev = &devwrap->dev;
+		devwrap->sdev = sdev;
+
+		dev->release = ssb_release_dev;
+		dev->bus = &ssb_bustype;
+		snprintf(dev->bus_id, sizeof(dev->bus_id),
+			 "ssb%d:%d", bus->busnumber, dev_idx);
+
+		switch (bus->bustype) {
+		case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
+			sdev->irq = bus->host_pci->irq;
+			dev->parent = &bus->host_pci->dev;
+#endif
+			break;
+		case SSB_BUSTYPE_PCMCIA:
+#ifdef CONFIG_SSB_PCMCIAHOST
+			dev->parent = &bus->host_pcmcia->dev;
+#endif
+			break;
+		case SSB_BUSTYPE_SSB:
+			break;
+		}
+
+		sdev->dev = dev;
+		err = device_register(dev);
+		if (err) {
+			ssb_printk(KERN_ERR PFX
+				   "Could not register %s\n",
+				   dev->bus_id);
+			/* Set dev to NULL to not unregister
+			 * dev on error unwinding. */
+			sdev->dev = NULL;
+			kfree(devwrap);
+			goto error;
+		}
+		dev_idx++;
+	}
+
+	return 0;
+error:
+	/* Unwind the already registered devices. */
+	ssb_devices_unregister(bus);
+	return err;
 }
 
 /* Needs ssb_buses_lock() */
 static int ssb_attach_queued_buses(void)
 {
 	struct ssb_bus *bus, *n;
-	struct ssb_device *dev;
-	int i, err;
+	int err = 0;
+	int drop_them_all = 0;
 
 	list_for_each_entry_safe(bus, n, &attach_queue, list) {
+		if (drop_them_all) {
+			list_del(&bus->list);
+			continue;
+		}
+		/* Can't init the PCIcore in ssb_bus_register(), as that
+		 * is too early in boot for embedded systems
+		 * (no udelay() available). So do it here in attach stage.
+		 */
 		ssb_pcicore_init(&bus->pcicore);
-		for (i = 0; i < bus->nr_devices; i++) {
-			dev = &(bus->devices[i]);
-
-			dev->dev.release = ssb_release_dev;
-			err = device_register(&dev->dev);
-			if (err) {
-				ssb_printk(KERN_ERR PFX
-					   "Could not register %s\n",
-					   dev->dev.bus_id);
-			}
+
+		err = ssb_devices_register(bus);
+		if (err) {
+			drop_them_all = 1;
+			list_del(&bus->list);
+			continue;
 		}
 		list_move_tail(&bus->list, &buses);
 	}
-	return 0;
+
+	return err;
 }
 
 static void ssb_get_boardtype(struct ssb_bus *bus)
@@ -307,23 +490,6 @@ static int ssb_bus_register(struct ssb_bus *bus,
 {
 	int err;
 
-	ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on ");
-	switch (bus->bustype) {
-	case SSB_BUSTYPE_SSB:
-		ssb_printk("address 0x%08lX\n", baseaddr);
-		break;
-	case SSB_BUSTYPE_PCI:
-#ifdef CONFIG_SSB_PCIHOST
-		ssb_printk("PCI device %s\n", bus->host_pci->dev.bus_id);
-#endif
-		break;
-	case SSB_BUSTYPE_PCMCIA:
-#ifdef CONFIG_SSB_PCMCIAHOST
-		ssb_printk("PCMCIA device %s\n", bus->host_pcmcia->devname);
-#endif
-		break;
-	}
-
 	spin_lock_init(&bus->bar_lock);
 	INIT_LIST_HEAD(&bus->list);
 
@@ -346,7 +512,7 @@ static int ssb_bus_register(struct ssb_bus *bus,
 	/* Init PCMCIA-host device (if any) */
 	err = ssb_pcmcia_init(bus);
 	if (err)
-		goto err_unmap;
+		goto err_pci_exit;
 
 	/* Initialize basic system devices (if available) */
 	ssb_chipcommon_init(&bus->chipco);
@@ -368,12 +534,16 @@ out:
 
 err_dequeue:
 	list_del(&bus->list);
+/* err_pcmcia_exit: */
+/*	ssb_pcmcia_exit(bus); */
+err_pci_exit:
+	ssb_pci_exit(bus);
 err_unmap:
 	ssb_iounmap(bus);
 err_disable_xtal:
 	ssb_buses_unlock();
 	ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
-	goto out;
+	return err;
 }
 
 #ifdef CONFIG_SSB_PCIHOST
@@ -387,6 +557,10 @@ int ssb_bus_pcibus_register(struct ssb_bus *bus,
 	bus->ops = &ssb_pci_ops;
 
 	err = ssb_bus_register(bus, 0);
+	if (!err) {
+		ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on "
+			   "PCI device %s\n", host_pci->dev.bus_id);
+	}
 
 	return err;
 }
@@ -407,6 +581,10 @@ int ssb_bus_pcmciabus_register(struct ssb_bus *bus,
 	fill_sprom(&bus->sprom);
 
 	err = ssb_bus_register(bus, baseaddr);
+	if (!err) {
+		ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found on "
+			   "PCMCIA device %s\n", pcmcia_dev->devname);
+	}
 
 	return err;
 }
@@ -422,7 +600,12 @@ int ssb_bus_ssbbus_register(struct ssb_bus *bus,
 	bus->bustype = SSB_BUSTYPE_SSB;
 	bus->ops = &ssb_ssb_ops;
 	fill_sprom(&bus->sprom);
+
 	err = ssb_bus_register(bus, baseaddr);
+	if (!err) {
+		ssb_printk(KERN_INFO PFX "Sonics Silicon Backplane found at "
+			   "address 0x%08lX\n", baseaddr);
+	}
 
 	return err;
 }
@@ -603,12 +786,29 @@ u32 ssb_clockspeed(struct ssb_bus *bus)
 }
 EXPORT_SYMBOL(ssb_clockspeed);
 
+static u32 ssb_tmslow_reject_bitmask(struct ssb_device *dev)
+{
+	/* The REJECT bit changed position in TMSLOW between
+	 * Backplane revisions. */
+	switch (ssb_read32(dev, SSB_IDLOW) & SSB_IDLOW_SSBREV) {
+	case SSB_IDLOW_SSBREV_22:
+		return SSB_TMSLOW_REJECT_22;
+	case SSB_IDLOW_SSBREV_23:
+		return SSB_TMSLOW_REJECT_23;
+	default:
+		assert(0);
+	}
+	return (SSB_TMSLOW_REJECT_22 | SSB_TMSLOW_REJECT_23);
+}
+
 int ssb_device_is_enabled(struct ssb_device *dev)
 {
 	u32 val;
+	u32 reject;
 
+	reject = ssb_tmslow_reject_bitmask(dev);
 	val = ssb_read32(dev, SSB_TMSLOW);
-	val &= SSB_TMSLOW_CLOCK | SSB_TMSLOW_RESET | SSB_TMSLOW_REJECT;
+	val &= SSB_TMSLOW_CLOCK | SSB_TMSLOW_RESET | reject;
 
 	return (val == SSB_TMSLOW_CLOCK);
 }
@@ -677,22 +877,25 @@ static int ssb_wait_bit(struct ssb_device *dev, u16 reg, u32 bitmask,
 
 void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags)
 {
+	u32 reject;
+
 	if (ssb_read32(dev, SSB_TMSLOW) & SSB_TMSLOW_RESET)
 		return;
 
-	ssb_write32(dev, SSB_TMSLOW, SSB_TMSLOW_REJECT | SSB_TMSLOW_CLOCK);
-	ssb_wait_bit(dev, SSB_TMSLOW, SSB_TMSLOW_REJECT, 1000, 1);
+	reject = ssb_tmslow_reject_bitmask(dev);
+	ssb_write32(dev, SSB_TMSLOW, reject | SSB_TMSLOW_CLOCK);
+	ssb_wait_bit(dev, SSB_TMSLOW, reject, 1000, 1);
 	ssb_wait_bit(dev, SSB_TMSHIGH, SSB_TMSHIGH_BUSY, 1000, 0);
 	ssb_write32(dev, SSB_TMSLOW,
 		    SSB_TMSLOW_FGC | SSB_TMSLOW_CLOCK |
-		    SSB_TMSLOW_REJECT | SSB_TMSLOW_RESET |
+		    reject | SSB_TMSLOW_RESET |
 		    core_specific_flags);
 	/* flush */
 	ssb_read32(dev, SSB_TMSLOW);
 	udelay(1);
 
 	ssb_write32(dev, SSB_TMSLOW,
-		    SSB_TMSLOW_REJECT | SSB_TMSLOW_RESET |
+		    reject | SSB_TMSLOW_RESET |
 		    core_specific_flags);
 	/* flush */
 	ssb_read32(dev, SSB_TMSLOW);
@@ -715,7 +918,7 @@ EXPORT_SYMBOL(ssb_dma_translation);
 
 int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask)
 {
-	struct device *dev = &ssb_dev->dev;
+	struct device *dev = ssb_dev->dev;
 
 #ifdef CONFIG_SSB_PCIHOST
 	if (ssb_dev->bus->bustype == SSB_BUSTYPE_PCI &&
@@ -729,6 +932,50 @@ int ssb_dma_set_mask(struct ssb_device *ssb_dev, u64 mask)
 }
 EXPORT_SYMBOL(ssb_dma_set_mask);
 
+int ssb_bus_may_powerdown(struct ssb_bus *bus)
+{
+	struct ssb_chipcommon *cc;
+	int err;
+
+	/* On buses where more than one core may be working
+	 * at a time, we must not powerdown stuff if there are
+	 * still cores that may want to run. */
+	if (bus->bustype == SSB_BUSTYPE_SSB)
+		return 0;
+
+	cc = &bus->chipco;
+	ssb_chipco_set_clockmode(cc, SSB_CLKMODE_SLOW);
+	err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 0);
+	if (err)
+		goto error;
+
+	return 0;
+error:
+	ssb_printk(KERN_ERR PFX "Bus powerdown failed\n");
+	return err;
+}
+EXPORT_SYMBOL(ssb_bus_may_powerdown);
+
+int ssb_bus_powerup(struct ssb_bus *bus, int dynamic_pctl)
+{
+	struct ssb_chipcommon *cc;
+	int err;
+	enum ssb_clkmode mode;
+
+	err = ssb_pci_xtal(bus, SSB_GPIO_XTAL | SSB_GPIO_PLL, 1);
+	if (err)
+		goto error;
+	cc = &bus->chipco;
+	mode = dynamic_pctl ? SSB_CLKMODE_DYNAMIC : SSB_CLKMODE_FAST;
+	ssb_chipco_set_clockmode(cc, mode);
+
+	return 0;
+error:
+	ssb_printk(KERN_ERR PFX "Bus powerup failed\n");
+	return err;
+}
+EXPORT_SYMBOL(ssb_bus_powerup);
+
 u32 ssb_admatch_base(u32 adm)
 {
 	u32 base = 0;
@@ -793,6 +1040,8 @@ static int __init ssb_modinit(void)
 	ssb_buses_lock();
 	err = ssb_attach_queued_buses();
 	ssb_buses_unlock();
+	if (err)
+		bus_unregister(&ssb_bustype);
 
 	return err;
 }
diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/pci.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/pci.c
index 811af789ed..fcd8e871cb 100644
--- a/target/linux/brcm47xx-2.6/files/drivers/ssb/pci.c
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/pci.c
@@ -121,7 +121,7 @@ int ssb_pci_xtal(struct ssb_bus *bus, u32 what, int turn_on)
 				err = pci_write_config_dword(bus->host_pci, SSB_GPIO_OUT, out);
 				if (err)
 					goto err_pci;
-				msleep(2);
+				msleep(5);
 			}
 		}
 
@@ -240,6 +240,52 @@ static void sprom_do_read(struct ssb_bus *bus, u16 *sprom)
 		sprom[i] = readw(bus->mmio + SSB_SPROM_BASE + (i * 2));
 }
 
+static int sprom_do_write(struct ssb_bus *bus, const u16 *sprom)
+{
+	struct pci_dev *pdev = bus->host_pci;
+	int i, err;
+	u32 spromctl;
+
+	ssb_printk(KERN_NOTICE PFX "Writing SPROM. Do NOT turn off the power! Please stand by...\n");
+	err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
+	if (err)
+		goto err_ctlreg;
+	spromctl |= SSB_SPROMCTL_WE;
+	err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
+	if (err)
+		goto err_ctlreg;
+	ssb_printk(KERN_NOTICE PFX "[ 0%%");
+	msleep(500);
+	for (i = 0; i < SSB_SPROMSIZE_WORDS; i++) {
+		if (i == SSB_SPROMSIZE_WORDS / 4)
+			ssb_printk("25%%");
+		else if (i == SSB_SPROMSIZE_WORDS / 2)
+			ssb_printk("50%%");
+		else if (i == (SSB_SPROMSIZE_WORDS / 4) * 3)
+			ssb_printk("75%%");
+		else if (i % 2)
+			ssb_printk(".");
+		writew(sprom[i], bus->mmio + SSB_SPROM_BASE + (i * 2));
+		mmiowb();
+		msleep(20);
+	}
+	err = pci_read_config_dword(pdev, SSB_SPROMCTL, &spromctl);
+	if (err)
+		goto err_ctlreg;
+	spromctl &= ~SSB_SPROMCTL_WE;
+	err = pci_write_config_dword(pdev, SSB_SPROMCTL, spromctl);
+	if (err)
+		goto err_ctlreg;
+	msleep(500);
+	ssb_printk("100%% ]\n");
+	ssb_printk(KERN_NOTICE PFX "SPROM written.\n");
+
+	return 0;
+err_ctlreg:
+	ssb_printk(KERN_ERR PFX "Could not access SPROM control register.\n");
+	return err;
+}
+
 static void sprom_extract_r1(struct ssb_sprom_r1 *out, const u16 *in)
 {
 	int i;
@@ -472,9 +518,155 @@ const struct ssb_bus_ops ssb_pci_ops = {
 	.write32	= ssb_pci_write32,
 };
 
+static int sprom2hex(const u16 *sprom, char *buf, size_t buf_len)
+{
+	int i, pos = 0;
+
+	for (i = 0; i < SSB_SPROMSIZE_WORDS; i++) {
+		pos += snprintf(buf + pos, buf_len - pos - 1,
+				"%04X", swab16(sprom[i]) & 0xFFFF);
+	}
+	pos += snprintf(buf + pos, buf_len - pos - 1, "\n");
+
+	return pos + 1;
+}
+
+static int hex2sprom(u16 *sprom, const char *dump, size_t len)
+{
+	char tmp[5] = { 0 };
+	int cnt = 0;
+	unsigned long parsed;
+
+	if (len < SSB_SPROMSIZE_BYTES * 2)
+		return -EINVAL;
+
+	while (cnt < SSB_SPROMSIZE_WORDS) {
+		memcpy(tmp, dump, 4);
+		dump += 4;
+		parsed = simple_strtoul(tmp, NULL, 16);
+		sprom[cnt++] = swab16((u16)parsed);
+	}
+
+	return 0;
+}
+
+static ssize_t ssb_pci_attr_sprom_show(struct device *pcidev,
+				       struct device_attribute *attr,
+				       char *buf)
+{
+	struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
+	struct ssb_bus *bus;
+	u16 *sprom;
+	int err = -ENODEV;
+	ssize_t count = 0;
+
+	bus = ssb_pci_dev_to_bus(pdev);
+	if (!bus)
+		goto out;
+	err = -ENOMEM;
+	sprom = kcalloc(SSB_SPROMSIZE_WORDS, sizeof(u16), GFP_KERNEL);
+	if (!sprom)
+		goto out;
+
+	err = -ERESTARTSYS;
+	if (mutex_lock_interruptible(&bus->pci_sprom_mutex))
+		goto out_kfree;
+	sprom_do_read(bus, sprom);
+	mutex_unlock(&bus->pci_sprom_mutex);
+
+	count = sprom2hex(sprom, buf, PAGE_SIZE);
+	err = 0;
+
+out_kfree:
+	kfree(sprom);
+out:
+	return err ? err : count;
+}
+
+static ssize_t ssb_pci_attr_sprom_store(struct device *pcidev,
+					struct device_attribute *attr,
+					const char *buf, size_t count)
+{
+	struct pci_dev *pdev = container_of(pcidev, struct pci_dev, dev);
+	struct ssb_bus *bus;
+	u16 *sprom;
+	int res = 0, err = -ENODEV;
+
+	bus = ssb_pci_dev_to_bus(pdev);
+	if (!bus)
+		goto out;
+	err = -ENOMEM;
+	sprom = kcalloc(SSB_SPROMSIZE_WORDS, sizeof(u16), GFP_KERNEL);
+	if (!sprom)
+		goto out;
+	err = hex2sprom(sprom, buf, count);
+	if (err) {
+		err = -EINVAL;
+		goto out_kfree;
+	}
+	err = sprom_check_crc(sprom);
+	if (err) {
+		err = -EINVAL;
+		goto out_kfree;
+	}
+
+	err = -ERESTARTSYS;
+	if (mutex_lock_interruptible(&bus->pci_sprom_mutex))
+		goto out_kfree;
+	err = ssb_devices_freeze(bus);
+	if (err) {
+		ssb_printk(KERN_ERR PFX "SPROM write: Could not freeze all devices\n");
+		goto out_unlock;
+	}
+	res = sprom_do_write(bus, sprom);
+	err = ssb_devices_thaw(bus);
+	if (err)
+		ssb_printk(KERN_ERR PFX "SPROM write: Could not thaw all devices\n");
+out_unlock:
+	mutex_unlock(&bus->pci_sprom_mutex);
+out_kfree:
+	kfree(sprom);
+out:
+	if (res)
+		return res;
+	return err ? err : count;
+}
+
+static DEVICE_ATTR(ssb_sprom, 0600,
+		   ssb_pci_attr_sprom_show,
+		   ssb_pci_attr_sprom_store);
+
+void ssb_pci_exit(struct ssb_bus *bus)
+{
+	struct pci_dev *pdev;
+
+	if (bus->bustype != SSB_BUSTYPE_PCI)
+		return;
+
+	pdev = bus->host_pci;
+	device_remove_file(&pdev->dev, &dev_attr_ssb_sprom);
+}
+
 int ssb_pci_init(struct ssb_bus *bus)
 {
+	struct pci_dev *pdev;
+	int err;
+
 	if (bus->bustype != SSB_BUSTYPE_PCI)
 		return 0;
-	return ssb_pci_sprom_get(bus);
+
+	pdev = bus->host_pci;
+	mutex_init(&bus->pci_sprom_mutex);
+	err = device_create_file(&pdev->dev, &dev_attr_ssb_sprom);
+	if (err)
+		goto out;
+	err = ssb_pci_sprom_get(bus);
+	if (err)
+		goto err_remove_sprom_file;
+
+out:
+	return err;
+err_remove_sprom_file:
+	device_remove_file(&pdev->dev, &dev_attr_ssb_sprom);
+	return err;
 }
diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/pcihost_wrapper.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/pcihost_wrapper.c
new file mode 100644
index 0000000000..82a10abef6
--- /dev/null
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/pcihost_wrapper.c
@@ -0,0 +1,104 @@
+/*
+ * Sonics Silicon Backplane
+ * PCI Hostdevice wrapper
+ *
+ * Copyright (c) 2005 Martin Langer <martin-langer@gmx.de>
+ * Copyright (c) 2005 Stefano Brivio <st3@riseup.net>
+ * Copyright (c) 2005 Danny van Dyk <kugelfang@gentoo.org>
+ * Copyright (c) 2005 Andreas Jaggi <andreas.jaggi@waterwave.ch>
+ * Copyright (c) 2005-2007 Michael Buesch <mbuesch@freenet.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/pci.h>
+#include <linux/ssb/ssb.h>
+
+
+#ifdef CONFIG_PM
+static int ssb_pcihost_suspend(struct pci_dev *dev, pm_message_t state)
+{
+	pci_save_state(dev);
+	pci_disable_device(dev);
+	pci_set_power_state(dev, pci_choose_state(dev, state));
+
+	return 0;
+}
+
+static int ssb_pcihost_resume(struct pci_dev *dev)
+{
+	int err;
+
+	pci_set_power_state(dev, 0);
+	err = pci_enable_device(dev);
+	if (err)
+		return err;
+	pci_restore_state(dev);
+
+	return 0;
+}
+#else /* CONFIG_PM */
+# define ssb_pcihost_suspend	NULL
+# define ssb_pcihost_resume	NULL
+#endif /* CONFIG_PM */
+
+static int ssb_pcihost_probe(struct pci_dev *dev,
+			     const struct pci_device_id *id)
+{
+	struct ssb_bus *ssb;
+	int err = -ENOMEM;
+	const char *name;
+
+	ssb = kzalloc(sizeof(*ssb), GFP_KERNEL);
+	if (!ssb)
+		goto out;
+	err = pci_enable_device(dev);
+	if (err)
+		goto err_kfree_ssb;
+	name = dev->dev.bus_id;
+	if (dev->driver && dev->driver->name)
+		name = dev->driver->name;
+	err = pci_request_regions(dev, name);
+	if (err)
+		goto err_pci_disable;
+	pci_set_master(dev);
+
+	err = ssb_bus_pcibus_register(ssb, dev);
+	if (err)
+		goto err_pci_release_regions;
+
+	pci_set_drvdata(dev, ssb);
+
+out:
+	return err;
+
+err_pci_release_regions:
+	pci_release_regions(dev);
+err_pci_disable:
+	pci_disable_device(dev);
+err_kfree_ssb:
+	kfree(ssb);
+	return err;
+}
+
+static void ssb_pcihost_remove(struct pci_dev *dev)
+{
+	struct ssb_bus *ssb = pci_get_drvdata(dev);
+
+	ssb_bus_unregister(ssb);
+	pci_release_regions(dev);
+	pci_disable_device(dev);
+	kfree(ssb);
+	pci_set_drvdata(dev, NULL);
+}
+
+int ssb_pcihost_register(struct pci_driver *driver)
+{
+	driver->probe = ssb_pcihost_probe;
+	driver->remove = ssb_pcihost_remove;
+	driver->suspend = ssb_pcihost_suspend;
+	driver->resume = ssb_pcihost_resume;
+
+	return pci_register_driver(driver);
+}
+EXPORT_SYMBOL(ssb_pcihost_register);
diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c b/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c
index 9e4a121c12..feaf1e57d0 100644
--- a/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/scan.c
@@ -17,6 +17,13 @@
 #include <linux/pci.h>
 #include <asm/io.h>
 
+#ifdef CONFIG_SSB_PCMCIAHOST
+# include <pcmcia/cs_types.h>
+# include <pcmcia/cs.h>
+# include <pcmcia/cistpl.h>
+# include <pcmcia/ds.h>
+#endif
+
 #include "ssb_private.h"
 
 
@@ -222,14 +229,32 @@ static void __iomem * ssb_ioremap(struct ssb_bus *bus,
 	return mmio;
 }
 
+static int we_support_multiple_80211_cores(struct ssb_bus *bus)
+{
+	/* More than one 802.11 core is only supported by special chips.
+	 * There are chips with two 802.11 cores, but with dangling
+	 * pins on the second core. Be careful and reject them here.
+	 */
+
+#ifdef CONFIG_SSB_PCIHOST
+	if (bus->bustype == SSB_BUSTYPE_PCI) {
+		if (bus->host_pci->vendor == PCI_VENDOR_ID_BROADCOM &&
+		    bus->host_pci->device == 0x4324)
+			return 1;
+	}
+#endif /* CONFIG_SSB_PCIHOST */
+	return 0;
+}
+
 int ssb_bus_scan(struct ssb_bus *bus,
 		 unsigned long baseaddr)
 {
 	int err = -ENOMEM;
 	void __iomem *mmio;
 	u32 idhi, cc, rev, tmp;
-	int i;
+	int dev_i, i;
 	struct ssb_device *dev;
+	int nr_80211_cores = 0;
 
 	mmio = ssb_ioremap(bus, baseaddr);
 	if (!mmio)
@@ -293,11 +318,11 @@ int ssb_bus_scan(struct ssb_bus *bus,
 	}
 
 	/* Fetch basic information about each core/device */
-	for (i = 0; i < bus->nr_devices; i++) {
+	for (i = 0, dev_i = 0; i < bus->nr_devices; i++) {
 		err = scan_switchcore(bus, i);
 		if (err)
 			goto err_unmap;
-		dev = &(bus->devices[i]);
+		dev = &(bus->devices[dev_i]);
 
 		idhi = scan_read32(bus, i, SSB_IDHIGH);
 		dev->id.coreid = (idhi & SSB_IDHIGH_CC) >> SSB_IDHIGH_CC_SHIFT;
@@ -306,8 +331,7 @@ int ssb_bus_scan(struct ssb_bus *bus,
 		dev->id.vendor = (idhi & SSB_IDHIGH_VC) >> SSB_IDHIGH_VC_SHIFT;
 		dev->core_index = i;
 		dev->bus = bus;
-		if ((dev->bus->bustype == SSB_BUSTYPE_PCI) && (bus->host_pci))
-			dev->irq = bus->host_pci->irq;
+		dev->ops = bus->ops;
 
 		ssb_dprintk(KERN_INFO PFX
 			    "Core %d found: %s "
@@ -315,13 +339,19 @@ int ssb_bus_scan(struct ssb_bus *bus,
 			    i, ssb_core_name(dev->id.coreid),
 			    dev->id.coreid, dev->id.revision, dev->id.vendor);
 
-		dev->dev.bus = &ssb_bustype;
-		snprintf(dev->dev.bus_id, sizeof(dev->dev.bus_id),
-			 "ssb%02x:%02x", bus->busnumber, i);
-
 		switch (dev->id.coreid) {
+		case SSB_DEV_80211:
+			nr_80211_cores++;
+			if (nr_80211_cores > 1) {
+				if (!we_support_multiple_80211_cores(bus)) {
+					ssb_dprintk(KERN_INFO PFX "Ignoring additional "
+						    "802.11 core\n");
+					continue;
+				}
+			}
+			break;
 		case SSB_DEV_EXTIF:
-#ifdef CONFIG_BCM947XX
+#ifdef CONFIG_SSB_DRIVER_EXTIF
 			if (bus->extif.dev) {
 				ssb_printk(KERN_WARNING PFX
 					   "WARNING: Multiple EXTIFs found\n");
@@ -340,14 +370,14 @@ int ssb_bus_scan(struct ssb_bus *bus,
 			break;
 		case SSB_DEV_MIPS:
 		case SSB_DEV_MIPS_3302:
-#ifdef CONFIG_BCM947XX
+#ifdef CONFIG_SSB_DRIVER_MIPS
 			if (bus->mipscore.dev) {
 				ssb_printk(KERN_WARNING PFX
 					   "WARNING: Multiple MIPS cores found\n");
 				break;
 			}
 			bus->mipscore.dev = dev;
-#endif /* CONFIG_BCM947XX */
+#endif /* CONFIG_SSB_DRIVER_MIPS */
 			break;
 		case SSB_DEV_PCI:
 		case SSB_DEV_PCIE:
@@ -363,7 +393,11 @@ int ssb_bus_scan(struct ssb_bus *bus,
 		default:
 			break;
 		}
+
+		dev_i++;
 	}
+	bus->nr_devices = dev_i;
+
 	err = 0;
 out:
 	return err;
diff --git a/target/linux/brcm47xx-2.6/files/drivers/ssb/ssb_private.h b/target/linux/brcm47xx-2.6/files/drivers/ssb/ssb_private.h
index 59645f5a6f..ae1fc0633d 100644
--- a/target/linux/brcm47xx-2.6/files/drivers/ssb/ssb_private.h
+++ b/target/linux/brcm47xx-2.6/files/drivers/ssb/ssb_private.h
@@ -53,6 +53,7 @@ extern int ssb_pci_xtal(struct ssb_bus *bus, u32 what,
 			int turn_on);
 extern int ssb_pci_sprom_get(struct ssb_bus *bus);
 extern void ssb_pci_get_boardtype(struct ssb_bus *bus);
+extern void ssb_pci_exit(struct ssb_bus *bus);
 extern int ssb_pci_init(struct ssb_bus *bus);
 extern const struct ssb_bus_ops ssb_pci_ops;
 
@@ -80,6 +81,9 @@ static inline int ssb_pci_sprom_get(struct ssb_bus *bus)
 static inline void ssb_pci_get_boardtype(struct ssb_bus *bus)
 {
 }
+static inline void ssb_pci_exit(struct ssb_bus *bus)
+{
+}
 static inline int ssb_pci_init(struct ssb_bus *bus)
 {
 	return 0;
@@ -128,8 +132,12 @@ extern void ssb_iounmap(struct ssb_bus *ssb);
 
 
 /* core.c */
-extern struct bus_type ssb_bustype;
 extern u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m);
+#ifdef CONFIG_SSB_PCIHOST
+extern int ssb_devices_freeze(struct ssb_bus *bus);
+extern int ssb_devices_thaw(struct ssb_bus *bus);
+extern struct ssb_bus * ssb_pci_dev_to_bus(struct pci_dev *pdev);
+#endif /* CONFIG_SSB_PCIHOST */
 
 
 /* Ceiling division helper. Divides x by y. */