sfc: SFT9001: Enable robust link training
Steve Hodgson [Thu, 29 Jan 2009 17:48:10 +0000 (17:48 +0000)]
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>

drivers/net/sfc/tenxpress.c

index 9ecb77d..19cfc31 100644 (file)
@@ -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 @@ static int tenxpress_init(struct efx_nic *efx)
                                         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,