diff options
Diffstat (limited to 'drivers/bcma/main.c')
| -rw-r--r-- | drivers/bcma/main.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/bcma/main.c b/drivers/bcma/main.c index f72f52b4b1dd..0067422ec17d 100644 --- a/drivers/bcma/main.c +++ b/drivers/bcma/main.c @@ -93,6 +93,25 @@ struct bcma_device *bcma_find_core_unit(struct bcma_bus *bus, u16 coreid, return NULL; } +bool bcma_wait_value(struct bcma_device *core, u16 reg, u32 mask, u32 value, + int timeout) +{ + unsigned long deadline = jiffies + timeout; + u32 val; + + do { + val = bcma_read32(core, reg); + if ((val & mask) == value) + return true; + cpu_relax(); + udelay(10); + } while (!time_after_eq(jiffies, deadline)); + + bcma_warn(core->bus, "Timeout waiting for register 0x%04X!\n", reg); + + return false; +} + static void bcma_release_core_dev(struct device *dev) { struct bcma_device *core = container_of(dev, struct bcma_device, dev); |