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| author | Rafał Miłecki <zajec5@gmail.com> | 2011-07-05 19:48:26 +0200 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2011-07-07 13:13:34 -0400 |
| commit | 9352f69c9194f1dcb3e096377e5c4804ab1bb5fb (patch) | |
| tree | a7159ee211970fe0c75fa1a864c39d3ebc5c731b /drivers/bcma/driver_pci.c | |
| parent | f0c717e6b7ac032e89611fa7629a1fff57e7667a (diff) | |
| download | blackbird-op-linux-9352f69c9194f1dcb3e096377e5c4804ab1bb5fb.tar.gz blackbird-op-linux-9352f69c9194f1dcb3e096377e5c4804ab1bb5fb.zip | |
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.c | 38 |
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) * 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) { |
