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authorRafał Miłecki <zajec5@gmail.com>2011-07-05 19:48:26 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-07-07 13:13:34 -0400
commit9352f69c9194f1dcb3e096377e5c4804ab1bb5fb (patch)
treea7159ee211970fe0c75fa1a864c39d3ebc5c731b /drivers/bcma/driver_pci.c
parentf0c717e6b7ac032e89611fa7629a1fff57e7667a (diff)
downloadvexpress-lsk-9352f69c9194f1dcb3e096377e5c4804ab1bb5fb.tar.gz
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 b0c19ede0d2..dc6f34ac96a 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)
* Init.
**************************************************/
-void bcma_core_pci_init(struct bcma_drv_pci *pc)
+static void bcma_core_pci_clientmode_init(struct bcma_drv_pci *pc)
{
bcma_pcicore_serdes_workaround(pc);
}
+static bool bcma_core_pci_is_in_hostmode(struct bcma_drv_pci *pc)
+{
+ struct bcma_bus *bus = pc->core->bus;
+ u16 chipid_top;
+
+ chipid_top = (bus->chipinfo.id & 0xFF00);
+ if (chipid_top != 0x4700 &&
+ chipid_top != 0x5300)
+ return false;
+
+ if (bus->sprom.boardflags_lo & SSB_PCICORE_BFL_NOPCI)
+ return false;
+
+#if 0
+ /* TODO: on BCMA we use address from EROM instead of magic formula */
+ u32 tmp;
+ return !mips_busprobe32(tmp, (bus->mmio +
+ (pc->core->core_index * BCMA_CORE_SIZE)));
+#endif
+
+ return true;
+}
+
+void bcma_core_pci_init(struct bcma_drv_pci *pc)
+{
+ if (bcma_core_pci_is_in_hostmode(pc)) {
+#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE
+ bcma_core_pci_hostmode_init(pc);
+#else
+ pr_err("Driver compiled without support for hostmode PCI\n");
+#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */
+ } else {
+ bcma_core_pci_clientmode_init(pc);
+ }
+}
+
int bcma_core_pci_irq_ctl(struct bcma_drv_pci *pc, struct bcma_device *core,
bool enable)
{