diff options
| author | Ben Hutchings <bhutchings@solarflare.com> | 2009-08-26 08:17:19 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-08-26 17:38:54 -0700 |
| commit | 5afaa753d681c437419e3dd9b532c2712dd1d2ea (patch) | |
| tree | caf3dc892f20ae1ce7603df97fefdb739d100892 /drivers/net/sfc | |
| parent | 771046d7b1def64c00a5a47ca48526cbbacd7fe3 (diff) | |
| download | linux-5afaa753d681c437419e3dd9b532c2712dd1d2ea.tar.bz2 | |
sfc: QT2025C: Use hard reset only
At probe time, falcon_reset_hw() performs a hard reset of the PHY
along with Falcon. There is no need to perform a soft reset later,
and any access to standard MDIO registers before the PHY firmware has
booted can interrupt the boot process, making the port unusable.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/sfc')
| -rw-r--r-- | drivers/net/sfc/xfp_phy.c | 19 |
1 files changed, 10 insertions, 9 deletions
diff --git a/drivers/net/sfc/xfp_phy.c b/drivers/net/sfc/xfp_phy.c index bb2e6afd0829..e6b3d5eaddba 100644 --- a/drivers/net/sfc/xfp_phy.c +++ b/drivers/net/sfc/xfp_phy.c @@ -97,23 +97,24 @@ static int qt2025c_wait_reset(struct efx_nic *efx) return 0; } -/* Reset the PHYXS MMD. This is documented (for the Quake PHYs) as doing - * a complete soft reset. - */ static int xfp_reset_phy(struct efx_nic *efx) { int rc; - rc = efx_mdio_reset_mmd(efx, MDIO_MMD_PHYXS, - XFP_MAX_RESET_TIME / XFP_RESET_WAIT, - XFP_RESET_WAIT); - if (rc < 0) - goto fail; - if (efx->phy_type == PHY_TYPE_QT2025C) { + /* Wait for the reset triggered by falcon_reset_hw() + * to complete */ rc = qt2025c_wait_reset(efx); if (rc < 0) goto fail; + } else { + /* Reset the PHYXS MMD. This is documented as doing + * a complete soft reset. */ + rc = efx_mdio_reset_mmd(efx, MDIO_MMD_PHYXS, + XFP_MAX_RESET_TIME / XFP_RESET_WAIT, + XFP_RESET_WAIT); + if (rc < 0) + goto fail; } /* Wait 250ms for the PHY to complete bootup */ |