diff options
Diffstat (limited to 'drivers/bcma')
| -rw-r--r-- | drivers/bcma/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/bcma/Makefile | 1 | ||||
| -rw-r--r-- | drivers/bcma/bcma_private.h | 4 | ||||
| -rw-r--r-- | drivers/bcma/driver_pci.c | 38 | ||||
| -rw-r--r-- | drivers/bcma/driver_pci_host.c | 14 |
5 files changed, 62 insertions, 1 deletions
diff --git a/drivers/bcma/Kconfig b/drivers/bcma/Kconfig index 83e9adf46441..ae0a02e1b808 100644 --- a/drivers/bcma/Kconfig +++ b/drivers/bcma/Kconfig @@ -27,6 +27,12 @@ config BCMA_HOST_PCI bool "Support for BCMA on PCI-host bus" depends on BCMA_HOST_PCI_POSSIBLE +config BCMA_DRIVER_PCI_HOSTMODE + bool "Driver for PCI core working in hostmode" + depends on BCMA && MIPS + help + PCI core hostmode operation (external PCI bus). + config BCMA_DEBUG bool "BCMA debugging" depends on BCMA diff --git a/drivers/bcma/Makefile b/drivers/bcma/Makefile index cde0182bd1dc..a2161cceafb9 100644 --- a/drivers/bcma/Makefile +++ b/drivers/bcma/Makefile @@ -1,6 +1,7 @@ bcma-y += main.o scan.o core.o sprom.o bcma-y += driver_chipcommon.o driver_chipcommon_pmu.o bcma-y += driver_pci.o +bcma-$(CONFIG_BCMA_DRIVER_PCI_HOSTMODE) += driver_pci_host.o bcma-$(CONFIG_BCMA_HOST_PCI) += host_pci.o obj-$(CONFIG_BCMA) += bcma.o diff --git a/drivers/bcma/bcma_private.h b/drivers/bcma/bcma_private.h index 4228736de0e8..e02ff21835c9 100644 --- a/drivers/bcma/bcma_private.h +++ b/drivers/bcma/bcma_private.h @@ -28,4 +28,8 @@ extern int __init bcma_host_pci_init(void); extern void __exit bcma_host_pci_exit(void); #endif /* CONFIG_BCMA_HOST_PCI */ +#ifdef CONFIG_BCMA_DRIVER_PCI_HOSTMODE +void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc); +#endif /* CONFIG_BCMA_DRIVER_PCI_HOSTMODE */ + #endif 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) { diff --git a/drivers/bcma/driver_pci_host.c b/drivers/bcma/driver_pci_host.c new file mode 100644 index 000000000000..eb332b75ce83 --- /dev/null +++ b/drivers/bcma/driver_pci_host.c @@ -0,0 +1,14 @@ +/* + * Broadcom specific AMBA + * PCI Core in hostmode + * + * Licensed under the GNU/GPL. See COPYING for details. + */ + +#include "bcma_private.h" +#include <linux/bcma/bcma.h> + +void bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc) +{ + pr_err("No support for PCI core in hostmode yet\n"); +} |