ssb: Add Gigabit Ethernet driver

This adds the Gigabit Ethernet driver for the SSB
Gigabit Ethernet core. This driver actually is a frontend to
the Tigon3 driver. So the real work is done by tg3.
This device is used in the Linksys WRT350N.

Signed-off-by: Michael Buesch <mb@bu3sch.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

11 files changed, 715 insertions, 72 deletions

diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig
index adea792fb675..f69ef0ba2613 100644
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -125,4 +125,13 @@ config SSB_DRIVER_EXTIF
 
           If unsure, say N
 
+config SSB_DRIVER_GIGE
+        bool "SSB Broadcom Gigabit Ethernet driver"
+        depends on SSB_PCIHOST_POSSIBLE && SSB_EMBEDDED && MIPS
+        help
+          Driver for the Sonics Silicon Backplane attached
+          Broadcom Gigabit Ethernet.
+
+          If unsure, say N
+
 endmenu
diff --git a/drivers/ssb/Makefile b/drivers/ssb/Makefile
index de94c2eb7a37..910f35e32fc9 100644
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -11,6 +11,7 @@ ssb-y					+= driver_chipcommon.o
 ssb-$(CONFIG_SSB_DRIVER_MIPS)           += driver_mipscore.o
 ssb-$(CONFIG_SSB_DRIVER_EXTIF)          += driver_extif.o
 ssb-$(CONFIG_SSB_DRIVER_PCICORE)        += driver_pcicore.o
+ssb-$(CONFIG_SSB_DRIVER_GIGE)           += driver_gige.o
 
 # b43 pci-ssb-bridge driver
 # Not strictly a part of SSB, but kept here for convenience
diff --git a/drivers/ssb/driver_gige.c b/drivers/ssb/driver_gige.c
new file mode 100644
index 000000000000..172f90407b93
--- /dev/null
+++ b/drivers/ssb/driver_gige.c
@@ -0,0 +1,294 @@
+/*
+ * Sonics Silicon Backplane
+ * Broadcom Gigabit Ethernet core driver
+ *
+ * Copyright 2008, Broadcom Corporation
+ * Copyright 2008, Michael Buesch <mb@bu3sch.de>
+ *
+ * Licensed under the GNU/GPL. See COPYING for details.
+ */
+
+#include <linux/ssb/ssb.h>
+#include <linux/ssb/ssb_driver_gige.h>
+#include <linux/pci.h>
+#include <linux/pci_regs.h>
+
+
+/*
+MODULE_DESCRIPTION("SSB Broadcom Gigabit Ethernet driver");
+MODULE_AUTHOR("Michael Buesch");
+MODULE_LICENSE("GPL");
+*/
+
+static const struct ssb_device_id ssb_gige_tbl[] = {
+        SSB_DEVICE(SSB_VENDOR_BROADCOM, SSB_DEV_ETHERNET_GBIT, SSB_ANY_REV),
+        SSB_DEVTABLE_END
+};
+/* MODULE_DEVICE_TABLE(ssb, ssb_gige_tbl); */
+
+
+static inline u8 gige_read8(struct ssb_gige *dev, u16 offset)
+{
+        return ssb_read8(dev->dev, offset);
+}
+
+static inline u16 gige_read16(struct ssb_gige *dev, u16 offset)
+{
+        return ssb_read16(dev->dev, offset);
+}
+
+static inline u32 gige_read32(struct ssb_gige *dev, u16 offset)
+{
+        return ssb_read32(dev->dev, offset);
+}
+
+static inline void gige_write8(struct ssb_gige *dev,
+                               u16 offset, u8 value)
+{
+        ssb_write8(dev->dev, offset, value);
+}
+
+static inline void gige_write16(struct ssb_gige *dev,
+                                u16 offset, u16 value)
+{
+        ssb_write16(dev->dev, offset, value);
+}
+
+static inline void gige_write32(struct ssb_gige *dev,
+                                u16 offset, u32 value)
+{
+        ssb_write32(dev->dev, offset, value);
+}
+
+static inline
+u8 gige_pcicfg_read8(struct ssb_gige *dev, unsigned int offset)
+{
+        BUG_ON(offset >= 256);
+        return gige_read8(dev, SSB_GIGE_PCICFG + offset);
+}
+
+static inline
+u16 gige_pcicfg_read16(struct ssb_gige *dev, unsigned int offset)
+{
+        BUG_ON(offset >= 256);
+        return gige_read16(dev, SSB_GIGE_PCICFG + offset);
+}
+
+static inline
+u32 gige_pcicfg_read32(struct ssb_gige *dev, unsigned int offset)
+{
+        BUG_ON(offset >= 256);
+        return gige_read32(dev, SSB_GIGE_PCICFG + offset);
+}
+
+static inline
+void gige_pcicfg_write8(struct ssb_gige *dev,
+                        unsigned int offset, u8 value)
+{
+        BUG_ON(offset >= 256);
+        gige_write8(dev, SSB_GIGE_PCICFG + offset, value);
+}
+
+static inline
+void gige_pcicfg_write16(struct ssb_gige *dev,
+                         unsigned int offset, u16 value)
+{
+        BUG_ON(offset >= 256);
+        gige_write16(dev, SSB_GIGE_PCICFG + offset, value);
+}
+
+static inline
+void gige_pcicfg_write32(struct ssb_gige *dev,
+                         unsigned int offset, u32 value)
+{
+        BUG_ON(offset >= 256);
+        gige_write32(dev, SSB_GIGE_PCICFG + offset, value);
+}
+
+static int ssb_gige_pci_read_config(struct pci_bus *bus, unsigned int devfn,
+                                    int reg, int size, u32 *val)
+{
+        struct ssb_gige *dev = container_of(bus->ops, struct ssb_gige, pci_ops);
+        unsigned long flags;
+
+        if ((PCI_SLOT(devfn) > 0) || (PCI_FUNC(devfn) > 0))
+                return PCIBIOS_DEVICE_NOT_FOUND;
+        if (reg >= 256)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+        spin_lock_irqsave(&dev->lock, flags);
+        switch (size) {
+        case 1:
+                *val = gige_pcicfg_read8(dev, reg);
+                break;
+        case 2:
+                *val = gige_pcicfg_read16(dev, reg);
+                break;
+        case 4:
+                *val = gige_pcicfg_read32(dev, reg);
+                break;
+        default:
+                WARN_ON(1);
+        }
+        spin_unlock_irqrestore(&dev->lock, flags);
+
+        return PCIBIOS_SUCCESSFUL;
+}
+
+static int ssb_gige_pci_write_config(struct pci_bus *bus, unsigned int devfn,
+                                     int reg, int size, u32 val)
+{
+        struct ssb_gige *dev = container_of(bus->ops, struct ssb_gige, pci_ops);
+        unsigned long flags;
+
+        if ((PCI_SLOT(devfn) > 0) || (PCI_FUNC(devfn) > 0))
+                return PCIBIOS_DEVICE_NOT_FOUND;
+        if (reg >= 256)
+                return PCIBIOS_DEVICE_NOT_FOUND;
+
+        spin_lock_irqsave(&dev->lock, flags);
+        switch (size) {
+        case 1:
+                gige_pcicfg_write8(dev, reg, val);
+                break;
+        case 2:
+                gige_pcicfg_write16(dev, reg, val);
+                break;
+        case 4:
+                gige_pcicfg_write32(dev, reg, val);
+                break;
+        default:
+                WARN_ON(1);
+        }
+        spin_unlock_irqrestore(&dev->lock, flags);
+
+        return PCIBIOS_SUCCESSFUL;
+}
+
+static int ssb_gige_probe(struct ssb_device *sdev, const struct ssb_device_id *id)
+{
+        struct ssb_gige *dev;
+        u32 base, tmslow, tmshigh;
+
+        dev = kzalloc(sizeof(*dev), GFP_KERNEL);
+        if (!dev)
+                return -ENOMEM;
+        dev->dev = sdev;
+
+        spin_lock_init(&dev->lock);
+        dev->pci_controller.pci_ops = &dev->pci_ops;
+        dev->pci_controller.io_resource = &dev->io_resource;
+        dev->pci_controller.mem_resource = &dev->mem_resource;
+        dev->pci_controller.io_map_base = 0x800;
+        dev->pci_ops.read = ssb_gige_pci_read_config;
+        dev->pci_ops.write = ssb_gige_pci_write_config;
+
+        dev->io_resource.name = SSB_GIGE_IO_RES_NAME;
+        dev->io_resource.start = 0x800;
+        dev->io_resource.end = 0x8FF;
+        dev->io_resource.flags = IORESOURCE_IO | IORESOURCE_PCI_FIXED;
+
+        if (!ssb_device_is_enabled(sdev))
+                ssb_device_enable(sdev, 0);
+
+        /* Setup BAR0. This is a 64k MMIO region. */
+        base = ssb_admatch_base(ssb_read32(sdev, SSB_ADMATCH1));
+        gige_pcicfg_write32(dev, PCI_BASE_ADDRESS_0, base);
+        gige_pcicfg_write32(dev, PCI_BASE_ADDRESS_1, 0);
+
+        dev->mem_resource.name = SSB_GIGE_MEM_RES_NAME;
+        dev->mem_resource.start = base;
+        dev->mem_resource.end = base + 0x10000 - 1;
+        dev->mem_resource.flags = IORESOURCE_MEM | IORESOURCE_PCI_FIXED;
+
+        /* Enable the memory region. */
+        gige_pcicfg_write16(dev, PCI_COMMAND,
+                            gige_pcicfg_read16(dev, PCI_COMMAND)
+                            | PCI_COMMAND_MEMORY);
+
+        /* Write flushing is controlled by the Flush Status Control register.
+         * We want to flush every register write with a timeout and we want
+         * to disable the IRQ mask while flushing to avoid concurrency.
+         * Note that automatic write flushing does _not_ work from
+         * an IRQ handler. The driver must flush manually by reading a register.
+         */
+        gige_write32(dev, SSB_GIGE_SHIM_FLUSHSTAT, 0x00000068);
+
+        /* Check if we have an RGMII or GMII PHY-bus.
+         * On RGMII do not bypass the DLLs */
+        tmslow = ssb_read32(sdev, SSB_TMSLOW);
+        tmshigh = ssb_read32(sdev, SSB_TMSHIGH);
+        if (tmshigh & SSB_GIGE_TMSHIGH_RGMII) {
+                tmslow &= ~SSB_GIGE_TMSLOW_TXBYPASS;
+                tmslow &= ~SSB_GIGE_TMSLOW_RXBYPASS;
+                dev->has_rgmii = 1;
+        } else {
+                tmslow |= SSB_GIGE_TMSLOW_TXBYPASS;
+                tmslow |= SSB_GIGE_TMSLOW_RXBYPASS;
+                dev->has_rgmii = 0;
+        }
+        tmslow |= SSB_GIGE_TMSLOW_DLLEN;
+        ssb_write32(sdev, SSB_TMSLOW, tmslow);
+
+        ssb_set_drvdata(sdev, dev);
+        register_pci_controller(&dev->pci_controller);
+
+        return 0;
+}
+
+bool pdev_is_ssb_gige_core(struct pci_dev *pdev)
+{
+        if (!pdev->resource[0].name)
+                return 0;
+        return (strcmp(pdev->resource[0].name, SSB_GIGE_MEM_RES_NAME) == 0);
+}
+EXPORT_SYMBOL(pdev_is_ssb_gige_core);
+
+int ssb_gige_pcibios_plat_dev_init(struct ssb_device *sdev,
+                                   struct pci_dev *pdev)
+{
+        struct ssb_gige *dev = ssb_get_drvdata(sdev);
+        struct resource *res;
+
+        if (pdev->bus->ops != &dev->pci_ops) {
+                /* The PCI device is not on this SSB GigE bridge device. */
+                return -ENODEV;
+        }
+
+        /* Fixup the PCI resources. */
+        res = &(pdev->resource[0]);
+        res->flags = IORESOURCE_MEM | IORESOURCE_PCI_FIXED;
+        res->name = dev->mem_resource.name;
+        res->start = dev->mem_resource.start;
+        res->end = dev->mem_resource.end;
+
+        /* Fixup interrupt lines. */
+        pdev->irq = ssb_mips_irq(sdev) + 2;
+        pci_write_config_byte(pdev, PCI_INTERRUPT_LINE, pdev->irq);
+
+        return 0;
+}
+
+int ssb_gige_map_irq(struct ssb_device *sdev,
+                     const struct pci_dev *pdev)
+{
+        struct ssb_gige *dev = ssb_get_drvdata(sdev);
+
+        if (pdev->bus->ops != &dev->pci_ops) {
+                /* The PCI device is not on this SSB GigE bridge device. */
+                return -ENODEV;
+        }
+
+        return ssb_mips_irq(sdev) + 2;
+}
+
+static struct ssb_driver ssb_gige_driver = {
+        .name           = "BCM-GigE",
+        .id_table       = ssb_gige_tbl,
+        .probe          = ssb_gige_probe,
+};
+
+int ssb_gige_init(void)
+{
+        return ssb_driver_register(&ssb_gige_driver);
+}
diff --git a/drivers/ssb/driver_mipscore.c b/drivers/ssb/driver_mipscore.c
index 3d3dd32bf3ab..e3fad3123ecb 100644
--- a/drivers/ssb/driver_mipscore.c
+++ b/drivers/ssb/driver_mipscore.c
@@ -209,6 +209,7 @@ void ssb_mipscore_init(struct ssb_mipscore *mcore)
                         /* fallthrough */
                 case SSB_DEV_PCI:
                 case SSB_DEV_ETHERNET:
+                case SSB_DEV_ETHERNET_GBIT:
                 case SSB_DEV_80211:
                 case SSB_DEV_USB20_HOST:
                         /* These devices get their own IRQ line if available, the rest goes on IRQ0 */
diff --git a/drivers/ssb/driver_pcicore.c b/drivers/ssb/driver_pcicore.c
index 74b9a8aea52b..33a7d5620474 100644
--- a/drivers/ssb/driver_pcicore.c
+++ b/drivers/ssb/driver_pcicore.c
@@ -60,77 +60,6 @@ static DEFINE_SPINLOCK(cfgspace_lock);
 /* Core to access the external PCI config space. Can only have one. */
 static struct ssb_pcicore *extpci_core;
 
-static u32 ssb_pcicore_pcibus_iobase = 0x100;
-static u32 ssb_pcicore_pcibus_membase = SSB_PCI_DMA;
-
-int pcibios_plat_dev_init(struct pci_dev *d)
-{
-        struct resource *res;
-        int pos, size;
-        u32 *base;
-
-        ssb_printk(KERN_INFO "PCI: Fixing up device %s\n",
-                   pci_name(d));
-
-        /* Fix up resource bases */
-        for (pos = 0; pos < 6; pos++) {
-                res = &d->resource[pos];
-                if (res->flags & IORESOURCE_IO)
-                        base = &ssb_pcicore_pcibus_iobase;
-                else
-                        base = &ssb_pcicore_pcibus_membase;
-                res->flags |= IORESOURCE_PCI_FIXED;
-                if (res->end) {
-                        size = res->end - res->start + 1;
-                        if (*base & (size - 1))
-                                *base = (*base + size) & ~(size - 1);
-                        res->start = *base;
-                        res->end = res->start + size - 1;
-                        *base += size;
-                        pci_write_config_dword(d, PCI_BASE_ADDRESS_0 + (pos << 2), res->start);
-                }
-                /* Fix up PCI bridge BAR0 only */
-                if (d->bus->number == 0 && PCI_SLOT(d->devfn) == 0)
-                        break;
-        }
-        /* Fix up interrupt lines */
-        d->irq = ssb_mips_irq(extpci_core->dev) + 2;
-        pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq);
-
-        return 0;
-}
-
-static void __init ssb_fixup_pcibridge(struct pci_dev *dev)
-{
-        u8 lat;
-
-        if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) != 0)
-                return;
-
-        ssb_printk(KERN_INFO "PCI: Fixing up bridge %s\n", pci_name(dev));
-
-        /* Enable PCI bridge bus mastering and memory space */
-        pci_set_master(dev);
-        if (pcibios_enable_device(dev, ~0) < 0) {
-                ssb_printk(KERN_ERR "PCI: SSB bridge enable failed\n");
-                return;
-        }
-
-        /* 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 */
-        lat = 168;
-        ssb_printk(KERN_INFO "PCI: Fixing latency timer of device %s to %u\n",
-                   pci_name(dev), lat);
-        pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
-}
-DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_fixup_pcibridge);
-
-int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
-{
-        return ssb_mips_irq(extpci_core->dev) + 2;
-}
 
 static u32 get_cfgspace_addr(struct ssb_pcicore *pc,
                              unsigned int bus, unsigned int dev,
@@ -320,6 +249,95 @@ static struct pci_controller ssb_pcicore_controller = {
         .mem_offset     = 0x24000000,
 };
 
+static u32 ssb_pcicore_pcibus_iobase = 0x100;
+static u32 ssb_pcicore_pcibus_membase = SSB_PCI_DMA;
+
+/* This function is called when doing a pci_enable_device().
+ * We must first check if the device is a device on the PCI-core bridge. */
+int ssb_pcicore_plat_dev_init(struct pci_dev *d)
+{
+        struct resource *res;
+        int pos, size;
+        u32 *base;
+
+        if (d->bus->ops != &ssb_pcicore_pciops) {
+                /* This is not a device on the PCI-core bridge. */
+                return -ENODEV;
+        }
+
+        ssb_printk(KERN_INFO "PCI: Fixing up device %s\n",
+                   pci_name(d));
+
+        /* Fix up resource bases */
+        for (pos = 0; pos < 6; pos++) {
+                res = &d->resource[pos];
+                if (res->flags & IORESOURCE_IO)
+                        base = &ssb_pcicore_pcibus_iobase;
+                else
+                        base = &ssb_pcicore_pcibus_membase;
+                res->flags |= IORESOURCE_PCI_FIXED;
+                if (res->end) {
+                        size = res->end - res->start + 1;
+                        if (*base & (size - 1))
+                                *base = (*base + size) & ~(size - 1);
+                        res->start = *base;
+                        res->end = res->start + size - 1;
+                        *base += size;
+                        pci_write_config_dword(d, PCI_BASE_ADDRESS_0 + (pos << 2), res->start);
+                }
+                /* Fix up PCI bridge BAR0 only */
+                if (d->bus->number == 0 && PCI_SLOT(d->devfn) == 0)
+                        break;
+        }
+        /* Fix up interrupt lines */
+        d->irq = ssb_mips_irq(extpci_core->dev) + 2;
+        pci_write_config_byte(d, PCI_INTERRUPT_LINE, d->irq);
+
+        return 0;
+}
+
+/* Early PCI fixup for a device on the PCI-core bridge. */
+static void ssb_pcicore_fixup_pcibridge(struct pci_dev *dev)
+{
+        u8 lat;
+
+        if (dev->bus->ops != &ssb_pcicore_pciops) {
+                /* This is not a device on the PCI-core bridge. */
+                return;
+        }
+        if (dev->bus->number != 0 || PCI_SLOT(dev->devfn) != 0)
+                return;
+
+        ssb_printk(KERN_INFO "PCI: Fixing up bridge %s\n", pci_name(dev));
+
+        /* Enable PCI bridge bus mastering and memory space */
+        pci_set_master(dev);
+        if (pcibios_enable_device(dev, ~0) < 0) {
+                ssb_printk(KERN_ERR "PCI: SSB bridge enable failed\n");
+                return;
+        }
+
+        /* 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 */
+        lat = 168;
+        ssb_printk(KERN_INFO "PCI: Fixing latency timer of device %s to %u\n",
+                   pci_name(dev), lat);
+        pci_write_config_byte(dev, PCI_LATENCY_TIMER, lat);
+}
+DECLARE_PCI_FIXUP_EARLY(PCI_ANY_ID, PCI_ANY_ID, ssb_pcicore_fixup_pcibridge);
+
+/* PCI device IRQ mapping. */
+int ssb_pcicore_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+        if (dev->bus->ops != &ssb_pcicore_pciops) {
+                /* This is not a device on the PCI-core bridge. */
+                return -ENODEV;
+        }
+        return ssb_mips_irq(extpci_core->dev) + 2;
+}
+
 static void ssb_pcicore_init_hostmode(struct ssb_pcicore *pc)
 {
         u32 val;
diff --git a/drivers/ssb/embedded.c b/drivers/ssb/embedded.c
index d3ade821555c..7dc3a6b41397 100644
--- a/drivers/ssb/embedded.c
+++ b/drivers/ssb/embedded.c
@@ -10,6 +10,9 @@
 
 #include <linux/ssb/ssb.h>
 #include <linux/ssb/ssb_embedded.h>
+#include <linux/ssb/ssb_driver_pci.h>
+#include <linux/ssb/ssb_driver_gige.h>
+#include <linux/pci.h>
 
 #include "ssb_private.h"
 
@@ -130,3 +133,90 @@ u32 ssb_gpio_polarity(struct ssb_bus *bus, u32 mask, u32 value)
         return res;
 }
 EXPORT_SYMBOL(ssb_gpio_polarity);
+
+#ifdef CONFIG_SSB_DRIVER_GIGE
+static int gige_pci_init_callback(struct ssb_bus *bus, unsigned long data)
+{
+        struct pci_dev *pdev = (struct pci_dev *)data;
+        struct ssb_device *dev;
+        unsigned int i;
+        int res;
+
+        for (i = 0; i < bus->nr_devices; i++) {
+                dev = &(bus->devices[i]);
+                if (dev->id.coreid != SSB_DEV_ETHERNET_GBIT)
+                        continue;
+                if (!dev->dev ||
+                    !dev->dev->driver ||
+                    !device_is_registered(dev->dev))
+                        continue;
+                res = ssb_gige_pcibios_plat_dev_init(dev, pdev);
+                if (res >= 0)
+                        return res;
+        }
+
+        return -ENODEV;
+}
+#endif /* CONFIG_SSB_DRIVER_GIGE */
+
+int ssb_pcibios_plat_dev_init(struct pci_dev *dev)
+{
+        int err;
+
+        err = ssb_pcicore_plat_dev_init(dev);
+        if (!err)
+                return 0;
+#ifdef CONFIG_SSB_DRIVER_GIGE
+        err = ssb_for_each_bus_call((unsigned long)dev, gige_pci_init_callback);
+        if (err >= 0)
+                return err;
+#endif
+        /* This is not a PCI device on any SSB device. */
+
+        return -ENODEV;
+}
+
+#ifdef CONFIG_SSB_DRIVER_GIGE
+static int gige_map_irq_callback(struct ssb_bus *bus, unsigned long data)
+{
+        const struct pci_dev *pdev = (const struct pci_dev *)data;
+        struct ssb_device *dev;
+        unsigned int i;
+        int res;
+
+        for (i = 0; i < bus->nr_devices; i++) {
+                dev = &(bus->devices[i]);
+                if (dev->id.coreid != SSB_DEV_ETHERNET_GBIT)
+                        continue;
+                if (!dev->dev ||
+                    !dev->dev->driver ||
+                    !device_is_registered(dev->dev))
+                        continue;
+                res = ssb_gige_map_irq(dev, pdev);
+                if (res >= 0)
+                        return res;
+        }
+
+        return -ENODEV;
+}
+#endif /* CONFIG_SSB_DRIVER_GIGE */
+
+int ssb_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+        int res;
+
+        /* Check if this PCI device is a device on a SSB bus or device
+         * and return the IRQ number for it. */
+
+        res = ssb_pcicore_pcibios_map_irq(dev, slot, pin);
+        if (res >= 0)
+                return res;
+#ifdef CONFIG_SSB_DRIVER_GIGE
+        res = ssb_for_each_bus_call((unsigned long)dev, gige_map_irq_callback);
+        if (res >= 0)
+                return res;
+#endif
+        /* This is not a PCI device on any SSB device. */
+
+        return -ENODEV;
+}
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 8db40c4b86e9..49d7bbb9bea7 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -14,6 +14,7 @@
 #include <linux/io.h>
 #include <linux/ssb/ssb.h>
 #include <linux/ssb/ssb_regs.h>
+#include <linux/ssb/ssb_driver_gige.h>
 #include <linux/dma-mapping.h>
 #include <linux/pci.h>
 
@@ -68,6 +69,25 @@ found:
 }
 #endif /* CONFIG_SSB_PCIHOST */
 
+int ssb_for_each_bus_call(unsigned long data,
+                          int (*func)(struct ssb_bus *bus, unsigned long data))
+{
+        struct ssb_bus *bus;
+        int res;
+
+        ssb_buses_lock();
+        list_for_each_entry(bus, &buses, list) {
+                res = func(bus, data);
+                if (res >= 0) {
+                        ssb_buses_unlock();
+                        return res;
+                }
+        }
+        ssb_buses_unlock();
+
+        return -ENODEV;
+}
+
 static struct ssb_device *ssb_device_get(struct ssb_device *dev)
 {
         if (dev)
@@ -1171,7 +1191,14 @@ static int __init ssb_modinit(void)
         err = b43_pci_ssb_bridge_init();
         if (err) {
                 ssb_printk(KERN_ERR "Broadcom 43xx PCI-SSB-bridge "
-                           "initialization failed");
+                           "initialization failed\n");
+                /* don't fail SSB init because of this */
+                err = 0;
+        }
+        err = ssb_gige_init();
+        if (err) {
+                ssb_printk(KERN_ERR "SSB Broadcom Gigabit Ethernet "
+                           "driver initialization failed\n");
                 /* don't fail SSB init because of this */
                 err = 0;
         }
@@ -1185,6 +1212,7 @@ fs_initcall(ssb_modinit);
 
 static void __exit ssb_modexit(void)
 {
+        ssb_gige_exit();
         b43_pci_ssb_bridge_exit();
         bus_unregister(&ssb_bustype);
 }
diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
index 21eca2b5118b..d03b20983b1e 100644
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -118,6 +118,8 @@ extern u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m);
 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);
+int ssb_for_each_bus_call(unsigned long data,
+                          int (*func)(struct ssb_bus *bus, unsigned long data));
 
 /* b43_pci_bridge.c */
 #ifdef CONFIG_SSB_B43_PCI_BRIDGE
diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index 860d28c6d149..b7c388972fcf 100644
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -422,5 +422,12 @@ extern int ssb_bus_powerup(struct ssb_bus *bus, bool dynamic_pctl);
 extern u32 ssb_admatch_base(u32 adm);
 extern u32 ssb_admatch_size(u32 adm);
 
+/* PCI device mapping and fixup routines.
+ * Called from the architecture pcibios init code.
+ * These are only available on SSB_EMBEDDED configurations. */
+#ifdef CONFIG_SSB_EMBEDDED
+int ssb_pcibios_plat_dev_init(struct pci_dev *dev);
+int ssb_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
+#endif /* CONFIG_SSB_EMBEDDED */
 
 #endif /* LINUX_SSB_H_ */
diff --git a/include/linux/ssb/ssb_driver_gige.h b/include/linux/ssb/ssb_driver_gige.h
new file mode 100644
index 000000000000..01fbdf5fef22
--- /dev/null
+++ b/include/linux/ssb/ssb_driver_gige.h
@@ -0,0 +1,174 @@
+#ifndef LINUX_SSB_DRIVER_GIGE_H_
+#define LINUX_SSB_DRIVER_GIGE_H_
+
+#include <linux/ssb/ssb.h>
+#include <linux/pci.h>
+#include <linux/spinlock.h>
+
+
+#ifdef CONFIG_SSB_DRIVER_GIGE
+
+
+#define SSB_GIGE_PCIIO                  0x0000 /* PCI I/O Registers (1024 bytes) */
+#define SSB_GIGE_RESERVED               0x0400 /* Reserved (1024 bytes) */
+#define SSB_GIGE_PCICFG                 0x0800 /* PCI config space (256 bytes) */
+#define SSB_GIGE_SHIM_FLUSHSTAT         0x0C00 /* PCI to OCP: Flush status control (32bit) */
+#define SSB_GIGE_SHIM_FLUSHRDA          0x0C04 /* PCI to OCP: Flush read address (32bit) */
+#define SSB_GIGE_SHIM_FLUSHTO           0x0C08 /* PCI to OCP: Flush timeout counter (32bit) */
+#define SSB_GIGE_SHIM_BARRIER           0x0C0C /* PCI to OCP: Barrier register (32bit) */
+#define SSB_GIGE_SHIM_MAOCPSI           0x0C10 /* PCI to OCP: MaocpSI Control (32bit) */
+#define SSB_GIGE_SHIM_SIOCPMA           0x0C14 /* PCI to OCP: SiocpMa Control (32bit) */
+
+/* TM Status High flags */
+#define SSB_GIGE_TMSHIGH_RGMII          0x00010000 /* Have an RGMII PHY-bus */
+/* TM Status Low flags */
+#define SSB_GIGE_TMSLOW_TXBYPASS        0x00080000 /* TX bypass (no delay) */
+#define SSB_GIGE_TMSLOW_RXBYPASS        0x00100000 /* RX bypass (no delay) */
+#define SSB_GIGE_TMSLOW_DLLEN           0x01000000 /* Enable DLL controls */
+
+/* Boardflags (low) */
+#define SSB_GIGE_BFL_ROBOSWITCH         0x0010
+
+
+#define SSB_GIGE_MEM_RES_NAME           "SSB Broadcom 47xx GigE memory"
+#define SSB_GIGE_IO_RES_NAME            "SSB Broadcom 47xx GigE I/O"
+
+struct ssb_gige {
+        struct ssb_device *dev;
+
+        spinlock_t lock;
+
+        /* True, if the device has an RGMII bus.
+         * False, if the device has a GMII bus. */
+        bool has_rgmii;
+
+        /* The PCI controller device. */
+        struct pci_controller pci_controller;
+        struct pci_ops pci_ops;
+        struct resource mem_resource;
+        struct resource io_resource;
+};
+
+/* Check whether a PCI device is a SSB Gigabit Ethernet core. */
+extern bool pdev_is_ssb_gige_core(struct pci_dev *pdev);
+
+/* Convert a pci_dev pointer to a ssb_gige pointer. */
+static inline struct ssb_gige * pdev_to_ssb_gige(struct pci_dev *pdev)
+{
+        if (!pdev_is_ssb_gige_core(pdev))
+                return NULL;
+        return container_of(pdev->bus->ops, struct ssb_gige, pci_ops);
+}
+
+/* Returns whether the PHY is connected by an RGMII bus. */
+static inline bool ssb_gige_is_rgmii(struct pci_dev *pdev)
+{
+        struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
+        return (dev ? dev->has_rgmii : 0);
+}
+
+/* Returns whether we have a Roboswitch. */
+static inline bool ssb_gige_have_roboswitch(struct pci_dev *pdev)
+{
+        struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
+        if (dev)
+                return !!(dev->dev->bus->sprom.boardflags_lo &
+                          SSB_GIGE_BFL_ROBOSWITCH);
+        return 0;
+}
+
+/* Returns whether we can only do one DMA at once. */
+static inline bool ssb_gige_one_dma_at_once(struct pci_dev *pdev)
+{
+        struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
+        if (dev)
+                return ((dev->dev->bus->chip_id == 0x4785) &&
+                        (dev->dev->bus->chip_rev < 2));
+        return 0;
+}
+
+/* Returns whether we must flush posted writes. */
+static inline bool ssb_gige_must_flush_posted_writes(struct pci_dev *pdev)
+{
+        struct ssb_gige *dev = pdev_to_ssb_gige(pdev);
+        if (dev)
+                return (dev->dev->bus->chip_id == 0x4785);
+        return 0;
+}
+
+extern char * nvram_get(const char *name);
+/* Get the device MAC address */
+static inline void ssb_gige_get_macaddr(struct pci_dev *pdev, u8 *macaddr)
+{
+#ifdef CONFIG_BCM947XX
+        char *res = nvram_get("et0macaddr");
+        if (res)
+                memcpy(macaddr, res, 6);
+#endif
+}
+
+extern int ssb_gige_pcibios_plat_dev_init(struct ssb_device *sdev,
+                                          struct pci_dev *pdev);
+extern int ssb_gige_map_irq(struct ssb_device *sdev,
+                            const struct pci_dev *pdev);
+
+/* The GigE driver is not a standalone module, because we don't have support
+ * for unregistering the driver. So we could not unload the module anyway. */
+extern int ssb_gige_init(void);
+static inline void ssb_gige_exit(void)
+{
+        /* Currently we can not unregister the GigE driver,
+         * because we can not unregister the PCI bridge. */
+        BUG();
+}
+
+
+#else /* CONFIG_SSB_DRIVER_GIGE */
+/* Gigabit Ethernet driver disabled */
+
+
+static inline int ssb_gige_pcibios_plat_dev_init(struct ssb_device *sdev,
+                                                 struct pci_dev *pdev)
+{
+        return -ENOSYS;
+}
+static inline int ssb_gige_map_irq(struct ssb_device *sdev,
+                                   const struct pci_dev *pdev)
+{
+        return -ENOSYS;
+}
+static inline int ssb_gige_init(void)
+{
+        return 0;
+}
+static inline void ssb_gige_exit(void)
+{
+}
+
+static inline bool pdev_is_ssb_gige_core(struct pci_dev *pdev)
+{
+        return 0;
+}
+static inline struct ssb_gige * pdev_to_ssb_gige(struct pci_dev *pdev)
+{
+        return NULL;
+}
+static inline bool ssb_gige_is_rgmii(struct pci_dev *pdev)
+{
+        return 0;
+}
+static inline bool ssb_gige_have_roboswitch(struct pci_dev *pdev)
+{
+        return 0;
+}
+static inline bool ssb_gige_one_dma_at_once(struct pci_dev *pdev)
+{
+        return 0;
+}
+static inline bool ssb_gige_must_flush_posted_writes(struct pci_dev *pdev)
+{
+        return 0;
+}
+
+#endif /* CONFIG_SSB_DRIVER_GIGE */
+#endif /* LINUX_SSB_DRIVER_GIGE_H_ */
diff --git a/include/linux/ssb/ssb_driver_pci.h b/include/linux/ssb/ssb_driver_pci.h
index 5e25bac4ed31..41e330e51c2a 100644
--- a/include/linux/ssb/ssb_driver_pci.h
+++ b/include/linux/ssb/ssb_driver_pci.h
@@ -1,6 +1,11 @@
 #ifndef LINUX_SSB_PCICORE_H_
 #define LINUX_SSB_PCICORE_H_
 
+#include <linux/types.h>
+
+struct pci_dev;
+
+
 #ifdef CONFIG_SSB_DRIVER_PCICORE
 
 /* PCI core registers. */
@@ -88,6 +93,9 @@ extern void ssb_pcicore_init(struct ssb_pcicore *pc);
 extern int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc,
                                           struct ssb_device *dev);
 
+int ssb_pcicore_plat_dev_init(struct pci_dev *d);
+int ssb_pcicore_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
+
 
 #else /* CONFIG_SSB_DRIVER_PCICORE */
 
@@ -107,5 +115,16 @@ int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc,
         return 0;
 }
 
+static inline
+int ssb_pcicore_plat_dev_init(struct pci_dev *d)
+{
+        return -ENODEV;
+}
+static inline
+int ssb_pcicore_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+        return -ENODEV;
+}
+
 #endif /* CONFIG_SSB_DRIVER_PCICORE */
 #endif /* LINUX_SSB_PCICORE_H_ */