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authorRafał Miłecki <zajec5@gmail.com>2011-07-05 13:48:26 -0400
committerJohn W. Linville <linville@tuxdriver.com>2011-07-07 13:13:34 -0400
commit9352f69c9194f1dcb3e096377e5c4804ab1bb5fb (patch)
treea7159ee211970fe0c75fa1a864c39d3ebc5c731b /drivers/bcma/driver_pci.c
parentf0c717e6b7ac032e89611fa7629a1fff57e7667a (diff)
bcma: detect PCI core working in hostmode
We must not init it like clientmode one, it would break device (tested by Hauke on BCM4718). Add stub hostmode driver for now. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/bcma/driver_pci.c')
-rw-r--r--drivers/bcma/driver_pci.c38
1 files changed, 37 insertions, 1 deletions
diff --git a/drivers/bcma/driver_pci.c b/drivers/bcma/driver_pci.c
index b0c19ede0d2e..dc6f34ac96a0 100644
--- a/drivers/bcma/driver_pci.c
+++ b/drivers/bcma/driver_pci.c
@@ -157,11 +157,47 @@ static void bcma_pcicore_serdes_workaround(struct bcma_drv_pci *pc)
157 * Init. 157 * Init.
158 **************************************************/ 158 **************************************************/
159 159
160void bcma_core_pci_init(struct bcma_drv_pci *pc) 160static void bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc)
161{ 161{
162 bcma_pcicore_serdes_workaround(pc); 162 bcma_pcicore_serdes_workaround(pc);
163} 163}
164 164
165static bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
166{
167 struct bcma_bus *bus = pc->core->bus;
168 u16 chipid_top;
169
170 chipid_top = (bus->chipinfo.id & 0xFF00);
171 if (chipid_top != 0x4700 &&
172 chipid_top != 0x5300)
173 return false;
174
175 if (bus->sprom.boardflags_lo & SSB_PCICORE_BFL_NOPCI)
176 return false;
177
178#if 0
179 /* TODO: on BCMA we use address from EROM instead of magic formula */
180 u32 tmp;
181 return !mips_busprobe32(tmp, (bus->mmio +
182 (pc->core->core_index * BCMA_CORE_SIZE)));
183#endif
184
185 return true;
186}
187
188void bcma_core_pci_init(struct bcma_drv_pci *pc)
189{
190 if (bcma_core_pci_is_in_hostmode(pc)) {
191#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
192 bcma_core_pci_hostmode_init(pc);
193#else
194 pr_err("Driver compiled without support for hostmode PCI\n");
195#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
196 } else {
197 bcma_core_pci_clientmode_init(pc);
198 }
199}
200
165int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core, 201int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core,
166 bool enable) 202 bool enable)
167{ 203{