Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx> --- drivers/net/e1000/e1000.h | 4 ++++ drivers/net/e1000/regio.c | 16 ++++++++++++++++ 2 files changed, 20 insertions(+) diff --git a/drivers/net/e1000/e1000.h b/drivers/net/e1000/e1000.h index c6d26d5..cb3e5ef 100644 --- a/drivers/net/e1000/e1000.h +++ b/drivers/net/e1000/e1000.h @@ -2144,5 +2144,9 @@ int32_t e1000_read_eeprom(struct e1000_hw *hw, uint16_t offset, int32_t e1000_swfw_sync_acquire(struct e1000_hw *hw, uint16_t mask); int32_t e1000_swfw_sync_release(struct e1000_hw *hw, uint16_t mask); +int e1000_poll_reg(struct e1000_hw *hw, uint32_t reg, + uint32_t mask, uint32_t value, + uint64_t timeout); + #endif /* _E1000_HW_H_ */ diff --git a/drivers/net/e1000/regio.c b/drivers/net/e1000/regio.c index 4970084..b2e9d7b 100644 --- a/drivers/net/e1000/regio.c +++ b/drivers/net/e1000/regio.c @@ -52,3 +52,19 @@ void e1000_write_flush(struct e1000_hw *hw) { e1000_read_reg(hw, E1000_STATUS); } + +int e1000_poll_reg(struct e1000_hw *hw, uint32_t reg, uint32_t mask, + uint32_t value, uint64_t timeout) +{ + const uint64_t start = get_time_ns(); + + do { + const uint32_t v = e1000_read_reg(hw, reg); + + if ((v & mask) == value) + return 0; + + } while (!is_timeout(start, timeout)); + + return -ETIMEDOUT; +} -- 2.5.5 _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox