diff options
Diffstat (limited to 'drivers/ssb/main.c')
| -rw-r--r-- | drivers/ssb/main.c | 59 |
1 files changed, 41 insertions, 18 deletions
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index f8a13f8..bb6317f 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -3,7 +3,7 @@ * Subsystem core * * Copyright 2005, Broadcom Corporation - * Copyright 2006, 2007, Michael Buesch <mb@bu3sch.de> + * Copyright 2006, 2007, Michael Buesch <m@bues.ch> * * Licensed under the GNU/GPL. See COPYING for details. */ @@ -12,6 +12,7 @@ #include <linux/delay.h> #include <linux/io.h> +#include <linux/module.h> #include <linux/ssb/ssb.h> #include <linux/ssb/ssb_regs.h> #include <linux/ssb/ssb_driver_gige.h> @@ -557,7 +558,7 @@ error: } /* Needs ssb_buses_lock() */ -static int ssb_attach_queued_buses(void) +static int __devinit ssb_attach_queued_buses(void) { struct ssb_bus *bus, *n; int err = 0; @@ -768,9 +769,9 @@ out: return err; } -static int ssb_bus_register(struct ssb_bus *bus, - ssb_invariants_func_t get_invariants, - unsigned long baseaddr) +static int __devinit ssb_bus_register(struct ssb_bus *bus, + ssb_invariants_func_t get_invariants, + unsigned long baseaddr) { int err; @@ -851,8 +852,8 @@ err_disable_xtal: } #ifdef CONFIG_SSB_PCIHOST -int ssb_bus_pcibus_register(struct ssb_bus *bus, - struct pci_dev *host_pci) +int __devinit ssb_bus_pcibus_register(struct ssb_bus *bus, + struct pci_dev *host_pci) { int err; @@ -875,9 +876,9 @@ EXPORT_SYMBOL(ssb_bus_pcibus_register); #endif /* CONFIG_SSB_PCIHOST */ #ifdef CONFIG_SSB_PCMCIAHOST -int ssb_bus_pcmciabus_register(struct ssb_bus *bus, - struct pcmcia_device *pcmcia_dev, - unsigned long baseaddr) +int __devinit ssb_bus_pcmciabus_register(struct ssb_bus *bus, + struct pcmcia_device *pcmcia_dev, + unsigned long baseaddr) { int err; @@ -897,8 +898,9 @@ EXPORT_SYMBOL(ssb_bus_pcmciabus_register); #endif /* CONFIG_SSB_PCMCIAHOST */ #ifdef CONFIG_SSB_SDIOHOST -int ssb_bus_sdiobus_register(struct ssb_bus *bus, struct sdio_func *func, - unsigned int quirks) +int __devinit ssb_bus_sdiobus_register(struct ssb_bus *bus, + struct sdio_func *func, + unsigned int quirks) { int err; @@ -918,9 +920,9 @@ int ssb_bus_sdiobus_register(struct ssb_bus *bus, struct sdio_func *func, EXPORT_SYMBOL(ssb_bus_sdiobus_register); #endif /* CONFIG_SSB_PCMCIAHOST */ -int ssb_bus_ssbbus_register(struct ssb_bus *bus, - unsigned long baseaddr, - ssb_invariants_func_t get_invariants) +int __devinit ssb_bus_ssbbus_register(struct ssb_bus *bus, + unsigned long baseaddr, + ssb_invariants_func_t get_invariants) { int err; @@ -1001,8 +1003,8 @@ u32 ssb_calc_clock_rate(u32 plltype, u32 n, u32 m) switch (plltype) { case SSB_PLLTYPE_6: /* 100/200 or 120/240 only */ if (m & SSB_CHIPCO_CLK_T6_MMASK) - return SSB_CHIPCO_CLK_T6_M0; - return SSB_CHIPCO_CLK_T6_M1; + return SSB_CHIPCO_CLK_T6_M1; + return SSB_CHIPCO_CLK_T6_M0; case SSB_PLLTYPE_1: /* 48Mhz base, 3 dividers */ case SSB_PLLTYPE_3: /* 25Mhz, 2 dividers */ case SSB_PLLTYPE_4: /* 48Mhz, 4 dividers */ @@ -1259,13 +1261,34 @@ void ssb_device_disable(struct ssb_device *dev, u32 core_specific_flags) } EXPORT_SYMBOL(ssb_device_disable); +/* Some chipsets need routing known for PCIe and 64-bit DMA */ +static bool ssb_dma_translation_special_bit(struct ssb_device *dev) +{ + u16 chip_id = dev->bus->chip_id; + + if (dev->id.coreid == SSB_DEV_80211) { + return (chip_id == 0x4322 || chip_id == 43221 || + chip_id == 43231 || chip_id == 43222); + } + + return 0; +} + u32 ssb_dma_translation(struct ssb_device *dev) { switch (dev->bus->bustype) { case SSB_BUSTYPE_SSB: return 0; case SSB_BUSTYPE_PCI: - return SSB_PCI_DMA; + if (pci_is_pcie(dev->bus->host_pci) && + ssb_read32(dev, SSB_TMSHIGH) & SSB_TMSHIGH_DMA64) { + return SSB_PCIE_DMA_H32; + } else { + if (ssb_dma_translation_special_bit(dev)) + return SSB_PCIE_DMA_H32; + else + return SSB_PCI_DMA; + } default: __ssb_dma_not_implemented(dev); } |