sfc: SFT9001: Enable robust link training
Enable a firmware option that appears to be necessary for reliable
operation.
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/sfc/tenxpress.c b/drivers/net/sfc/tenxpress.c
index 9ecb77d..19cfc31 100644
--- a/drivers/net/sfc/tenxpress.c
+++ b/drivers/net/sfc/tenxpress.c
@@ -67,6 +67,8 @@
#define PMA_PMD_EXT_CLK312_WIDTH 1
#define PMA_PMD_EXT_LPOWER_LBN 12
#define PMA_PMD_EXT_LPOWER_WIDTH 1
+#define PMA_PMD_EXT_ROBUST_LBN 14
+#define PMA_PMD_EXT_ROBUST_WIDTH 1
#define PMA_PMD_EXT_SSR_LBN 15
#define PMA_PMD_EXT_SSR_WIDTH 1
@@ -284,7 +286,9 @@
PMA_PMD_XCONTROL_REG);
reg |= ((1 << PMA_PMD_EXT_GMII_EN_LBN) |
(1 << PMA_PMD_EXT_CLK_OUT_LBN) |
- (1 << PMA_PMD_EXT_CLK312_LBN));
+ (1 << PMA_PMD_EXT_CLK312_LBN) |
+ (1 << PMA_PMD_EXT_ROBUST_LBN));
+
mdio_clause45_write(efx, phy_id, MDIO_MMD_PMAPMD,
PMA_PMD_XCONTROL_REG, reg);
mdio_clause45_set_flag(efx, phy_id, MDIO_MMD_C22EXT,