[PATCH v3 6/8] b44: activate PHY when MAC is off
From: Hauke Mehrtens <hauke@hauke-m.de>
Date: 2013-12-20 01:16:44
Subsystem:
broadcom b44 10/100 ethernet driver, networking drivers, the rest · Maintainers:
Michael Chan, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Without this patch we can not access the PHY when the MAC is switched off. This PHY access is needed to configure the switch, which is done through PHY registers. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> --- drivers/net/ethernet/broadcom/b44.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/b44.c b/drivers/net/ethernet/broadcom/b44.c
index 7b1e71d..d17561b 100644
--- a/drivers/net/ethernet/broadcom/b44.c
+++ b/drivers/net/ethernet/broadcom/b44.c@@ -1360,7 +1360,10 @@ static void b44_halt(struct b44 *bp) bw32(bp, B44_MAC_CTRL, MAC_CTRL_PHY_PDOWN); /* now reset the chip, but without enabling the MAC&PHY * part of it. This has to be done _after_ we shut down the PHY */ - b44_chip_reset(bp, B44_CHIP_RESET_PARTIAL); + if (bp->flags & B44_FLAG_EXTERNAL_PHY) + b44_chip_reset(bp, B44_CHIP_RESET_FULL); + else + b44_chip_reset(bp, B44_CHIP_RESET_PARTIAL); } /* bp->lock is held. */
--
1.7.10.4