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authorDaniel Vetter <daniel.vetter@ffwll.ch>2015-08-14 18:10:35 +0200
committerDaniel Vetter <daniel.vetter@ffwll.ch>2015-08-14 18:11:30 +0200
commit622147fdad5425f6f572f84ce709303e5e0500b7 (patch)
tree9b5adde02ed4481db2dc5011a2c9447c8cac12eb /drivers/net/dsa/bcm_sf2.c
parent5a2376d1360bfc9ebf3b554dd8db1922d42cee4b (diff)
parentd2944cf21305c754fa8b2d6c1eea05ad5dad7944 (diff)
downloadtalos-op-linux-622147fdad5425f6f572f84ce709303e5e0500b7.tar.gz
talos-op-linux-622147fdad5425f6f572f84ce709303e5e0500b7.zip
Merge tag 'drm-intel-fixes-2015-08-14' into drm-intel-next-fixes
Backmerge drm-intel-fixes because a bunch of atomic patch backporting we had to do lead to horrible conflicts. Conflicts: drivers/gpu/drm/drm_crtc.c Just a bit of context conflict between -next and -fixes. drivers/gpu/drm/i915/intel_atomic.c drivers/gpu/drm/i915/intel_display.c Atomic conflicts, always pick the code from -next. Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Diffstat (limited to 'drivers/net/dsa/bcm_sf2.c')
-rw-r--r--drivers/net/dsa/bcm_sf2.c15
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index 972982f8bea7..079897b3a955 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -696,9 +696,20 @@ static int bcm_sf2_sw_setup(struct dsa_switch *ds)
}
/* Include the pseudo-PHY address and the broadcast PHY address to
- * divert reads towards our workaround
+ * divert reads towards our workaround. This is only required for
+ * 7445D0, since 7445E0 disconnects the internal switch pseudo-PHY such
+ * that we can use the regular SWITCH_MDIO master controller instead.
+ *
+ * By default, DSA initializes ds->phys_mii_mask to ds->phys_port_mask
+ * to have a 1:1 mapping between Port address and PHY address in order
+ * to utilize the slave_mii_bus instance to read from Port PHYs. This is
+ * not what we want here, so we initialize phys_mii_mask 0 to always
+ * utilize the "master" MDIO bus backed by the "mdio-unimac" driver.
*/
- ds->phys_mii_mask |= ((1 << BRCM_PSEUDO_PHY_ADDR) | (1 << 0));
+ if (of_machine_is_compatible("brcm,bcm7445d0"))
+ ds->phys_mii_mask |= ((1 << BRCM_PSEUDO_PHY_ADDR) | (1 << 0));
+ else
+ ds->phys_mii_mask = 0;
rev = reg_readl(priv, REG_SWITCH_REVISION);
priv->hw_params.top_rev = (rev >> SWITCH_TOP_REV_SHIFT) &
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