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ssb: Add Gigabit Ethernet driver

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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>
This commit is contained in:
Michael Buesch
2008-02-29 11:36:12 +01:00
committed by John W. Linville
parent 69d3b6f491
commit aab547ce0d
11 changed files with 715 additions and 72 deletions
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drivers/ssb/embedded.c
+90
View File
@@ -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;
}