diff options
Diffstat (limited to 'target/linux/generic/patches-3.18/020-ssb_update.patch')
| -rw-r--r-- | target/linux/generic/patches-3.18/020-ssb_update.patch | 134 |
1 files changed, 134 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.18/020-ssb_update.patch b/target/linux/generic/patches-3.18/020-ssb_update.patch new file mode 100644 index 0000000..f94d160 --- /dev/null +++ b/target/linux/generic/patches-3.18/020-ssb_update.patch @@ -0,0 +1,134 @@ +--- a/drivers/ssb/pcihost_wrapper.c ++++ b/drivers/ssb/pcihost_wrapper.c +@@ -11,15 +11,17 @@ + * Licensed under the GNU/GPL. See COPYING for details. + */ + ++#include <linux/pm.h> + #include <linux/pci.h> + #include <linux/export.h> + #include <linux/slab.h> + #include <linux/ssb/ssb.h> + + +-#ifdef CONFIG_PM +-static int ssb_pcihost_suspend(struct pci_dev *dev, pm_message_t state) ++#ifdef CONFIG_PM_SLEEP ++static int ssb_pcihost_suspend(struct device *d) + { ++ struct pci_dev *dev = to_pci_dev(d); + struct ssb_bus *ssb = pci_get_drvdata(dev); + int err; + +@@ -28,17 +30,23 @@ static int ssb_pcihost_suspend(struct pc + return err; + pci_save_state(dev); + pci_disable_device(dev); +- pci_set_power_state(dev, pci_choose_state(dev, state)); ++ ++ /* if there is a wakeup enabled child device on ssb bus, ++ enable pci wakeup posibility. */ ++ device_set_wakeup_enable(d, d->power.wakeup_path); ++ ++ pci_prepare_to_sleep(dev); + + return 0; + } + +-static int ssb_pcihost_resume(struct pci_dev *dev) ++static int ssb_pcihost_resume(struct device *d) + { ++ struct pci_dev *dev = to_pci_dev(d); + struct ssb_bus *ssb = pci_get_drvdata(dev); + int err; + +- pci_set_power_state(dev, PCI_D0); ++ pci_back_from_sleep(dev); + err = pci_enable_device(dev); + if (err) + return err; +@@ -49,10 +57,12 @@ static int ssb_pcihost_resume(struct pci + + return 0; + } +-#else /* CONFIG_PM */ +-# define ssb_pcihost_suspend NULL +-# define ssb_pcihost_resume NULL +-#endif /* CONFIG_PM */ ++ ++static const struct dev_pm_ops ssb_pcihost_pm_ops = { ++ SET_SYSTEM_SLEEP_PM_OPS(ssb_pcihost_suspend, ssb_pcihost_resume) ++}; ++ ++#endif /* CONFIG_PM_SLEEP */ + + static int ssb_pcihost_probe(struct pci_dev *dev, + const struct pci_device_id *id) +@@ -115,8 +125,9 @@ int ssb_pcihost_register(struct pci_driv + { + driver->probe = ssb_pcihost_probe; + driver->remove = ssb_pcihost_remove; +- driver->suspend = ssb_pcihost_suspend; +- driver->resume = ssb_pcihost_resume; ++#ifdef CONFIG_PM_SLEEP ++ driver->driver.pm = &ssb_pcihost_pm_ops; ++#endif + + return pci_register_driver(driver); + } +--- a/drivers/ssb/driver_pcicore.c ++++ b/drivers/ssb/driver_pcicore.c +@@ -357,6 +357,16 @@ static void ssb_pcicore_init_hostmode(st + pcicore_write32(pc, SSB_PCICORE_SBTOPCI2, + SSB_PCICORE_SBTOPCI_MEM | SSB_PCI_DMA); + ++ /* ++ * Accessing PCI config without a proper delay after devices reset (not ++ * GPIO reset) was causing reboots on WRT300N v1.0 (BCM4704). ++ * Tested delay 850 us lowered reboot chance to 50-80%, 1000 us fixed it ++ * completely. Flushing all writes was also tested but with no luck. ++ * The same problem was reported for WRT350N v1 (BCM4705), so we just ++ * sleep here unconditionally. ++ */ ++ usleep_range(1000, 2000); ++ + /* Enable PCI bridge BAR0 prefetch and burst */ + val = PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + ssb_extpci_write_config(pc, 0, 0, 0, PCI_COMMAND, &val, 2); +--- a/drivers/ssb/main.c ++++ b/drivers/ssb/main.c +@@ -90,25 +90,6 @@ found: + } + #endif /* CONFIG_SSB_PCMCIAHOST */ + +-#ifdef CONFIG_SSB_SDIOHOST +-struct ssb_bus *ssb_sdio_func_to_bus(struct sdio_func *func) +-{ +- struct ssb_bus *bus; +- +- ssb_buses_lock(); +- list_for_each_entry(bus, &buses, list) { +- if (bus->bustype == SSB_BUSTYPE_SDIO && +- bus->host_sdio == func) +- goto found; +- } +- bus = NULL; +-found: +- ssb_buses_unlock(); +- +- return bus; +-} +-#endif /* CONFIG_SSB_SDIOHOST */ +- + int ssb_for_each_bus_call(unsigned long data, + int (*func)(struct ssb_bus *bus, unsigned long data)) + { +@@ -1154,6 +1135,8 @@ static u32 ssb_tmslow_reject_bitmask(str + case SSB_IDLOW_SSBREV_25: /* TODO - find the proper REJECT bit */ + case SSB_IDLOW_SSBREV_27: /* same here */ + return SSB_TMSLOW_REJECT; /* this is a guess */ ++ case SSB_IDLOW_SSBREV: ++ break; + default: + WARN(1, KERN_INFO "ssb: Backplane Revision 0x%.8X\n", rev); + } |