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authorMichael Buesch <mb@bu3sch.de>2008-02-29 05:36:12 -0500
committerJohn W. Linville <linville@tuxdriver.com>2008-03-06 17:09:43 -0500
commitaab547ce0d1493d400b6468c521a0137cd8c1edf (patch)
tree84625da40d905669a28a5770de111225667d5f27 /drivers/ssb/embedded.c
parent69d3b6f491545d326135a1def4e290cd577c9a36 (diff)
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>
Diffstat (limited to 'drivers/ssb/embedded.c')
-rw-r--r--drivers/ssb/embedded.c90
1 files changed, 90 insertions, 0 deletions
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 @@
10 10
11#include <linux/ssb/ssb.h> 11#include <linux/ssb/ssb.h>
12#include <linux/ssb/ssb_embedded.h> 12#include <linux/ssb/ssb_embedded.h>
13#include <linux/ssb/ssb_driver_pci.h>
14#include <linux/ssb/ssb_driver_gige.h>
15#include <linux/pci.h>
13 16
14#include "ssb_private.h" 17#include "ssb_private.h"
15 18
@@ -130,3 +133,90 @@ u32 ssb_gpio_polarity(struct ssb_bus *bus, u32 mask, u32 value)
130 return res; 133 return res;
131} 134}
132EXPORT_SYMBOL(ssb_gpio_polarity); 135EXPORT_SYMBOL(ssb_gpio_polarity);
136
137#ifdef CONFIG_SSB_DRIVER_GIGE
138static int gige_pci_init_callback(struct ssb_bus *bus, unsigned long data)
139{
140 struct pci_dev *pdev = (struct pci_dev *)data;
141 struct ssb_device *dev;
142 unsigned int i;
143 int res;
144
145 for (i = 0; i < bus->nr_devices; i++) {
146 dev = &(bus->devices[i]);
147 if (dev->id.coreid != SSB_DEV_ETHERNET_GBIT)
148 continue;
149 if (!dev->dev ||
150 !dev->dev->driver ||
151 !device_is_registered(dev->dev))
152 continue;
153 res = ssb_gige_pcibios_plat_dev_init(dev, pdev);
154 if (res >= 0)
155 return res;
156 }
157
158 return -ENODEV;
159}
160#endif /* CONFIG_SSB_DRIVER_GIGE */
161
162int ssb_pcibios_plat_dev_init(struct pci_dev *dev)
163{
164 int err;
165
166 err = ssb_pcicore_plat_dev_init(dev);
167 if (!err)
168 return 0;
169#ifdef CONFIG_SSB_DRIVER_GIGE
170 err = ssb_for_each_bus_call((unsigned long)dev, gige_pci_init_callback);
171 if (err >= 0)
172 return err;
173#endif
174 /* This is not a PCI device on any SSB device. */
175
176 return -ENODEV;
177}
178
179#ifdef CONFIG_SSB_DRIVER_GIGE
180static int gige_map_irq_callback(struct ssb_bus *bus, unsigned long data)
181{
182 const struct pci_dev *pdev = (const struct pci_dev *)data;
183 struct ssb_device *dev;
184 unsigned int i;
185 int res;
186
187 for (i = 0; i < bus->nr_devices; i++) {
188 dev = &(bus->devices[i]);
189 if (dev->id.coreid != SSB_DEV_ETHERNET_GBIT)
190 continue;
191 if (!dev->dev ||
192 !dev->dev->driver ||
193 !device_is_registered(dev->dev))
194 continue;
195 res = ssb_gige_map_irq(dev, pdev);
196 if (res >= 0)
197 return res;
198 }
199
200 return -ENODEV;
201}
202#endif /* CONFIG_SSB_DRIVER_GIGE */
203
204int ssb_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
205{
206 int res;
207
208 /* Check if this PCI device is a device on a SSB bus or device
209 * and return the IRQ number for it. */
210
211 res = ssb_pcicore_pcibios_map_irq(dev, slot, pin);
212 if (res >= 0)
213 return res;
214#ifdef CONFIG_SSB_DRIVER_GIGE
215 res = ssb_for_each_bus_call((unsigned long)dev, gige_map_irq_callback);
216 if (res >= 0)
217 return res;
218#endif
219 /* This is not a PCI device on any SSB device. */
220
221 return -ENODEV;
222}