sfc: SFT9001: Fix speed reporting in 1G PHY loopback

Instead of disabling AN in loopback, just prevent restarting AN and
override the speed in sft9001_get_settings().

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sfc/workarounds.h b/drivers/net/sfc/workarounds.h
index 797a0cf..420fe15 100644
--- a/drivers/net/sfc/workarounds.h
+++ b/drivers/net/sfc/workarounds.h
@@ -19,6 +19,8 @@
 #define EFX_WORKAROUND_FALCON_A(efx) (falcon_rev(efx) <= FALCON_REV_A1)
 #define EFX_WORKAROUND_10G(efx) EFX_IS10G(efx)
 #define EFX_WORKAROUND_SFT9001A(efx) ((efx)->phy_type == PHY_TYPE_SFT9001A)
+#define EFX_WORKAROUND_SFT9001(efx) ((efx)->phy_type == PHY_TYPE_SFT9001A || \
+				     (efx)->phy_type == PHY_TYPE_SFT9001B)
 
 /* XAUI resets if link not detected */
 #define EFX_WORKAROUND_5147 EFX_WORKAROUND_ALWAYS
@@ -56,4 +58,7 @@
 /* Need to keep AN enabled */
 #define EFX_WORKAROUND_13963 EFX_WORKAROUND_SFT9001A
 
+/* Don't restart AN in near-side loopback */
+#define EFX_WORKAROUND_15195 EFX_WORKAROUND_SFT9001
+
 #endif /* EFX_WORKAROUNDS_H */