The following commit:
commit 46e91674fb4b6d06c6a4984c0b5ac7d9a16923f4 Author: Peter Tyser ptyser@xes-inc.com Date: Tue Nov 3 17:52:07 2009 -0600
tsec: Force TBI PHY to 1000Mbps full duplex in SGMII mode
Removed setting Auto-Neg by default, however this is believed to be proper default configuration for initialization of the TBI interface.
Instead we explicitly set CONFIG_TSEC_TBICR_SETTINGS for the XPedite5370 & XPedite5500 boards that use a Broadcomm PHY which require Auto-Neg to be disabled to function properly.
This addresses a breakage on the P2020 DS & MPC8572 DS boards when used with an SGMII riser card. We also remove setting CONFIG_TSEC_TBICR_SETTINGS on the P1_P2_RDB family of boards as now the default setting is sufficient for them.
Additionally, we clean up the code a bit to remove an unnecessary second define.
Signed-off-by: Kumar Gala galak@kernel.crashing.org Acked-by: Peter Tyser ptyser@xes-inc.com Tested-by: Peter Tyser ptyser@xes-inc.com --- * Added comments per Peter T's request
drivers/net/tsec.c | 9 ++++----- include/configs/P1_P2_RDB.h | 8 -------- include/configs/xpedite537x.h | 10 ++++++++++ include/configs/xpedite550x.h | 10 ++++++++++ 4 files changed, 24 insertions(+), 13 deletions(-)
diff --git a/drivers/net/tsec.c b/drivers/net/tsec.c index 9b5dd92..77908d1 100644 --- a/drivers/net/tsec.c +++ b/drivers/net/tsec.c @@ -5,7 +5,7 @@ * terms of the GNU Public License, Version 2, incorporated * herein by reference. * - * Copyright 2004-2009 Freescale Semiconductor, Inc. + * Copyright 2004-2010 Freescale Semiconductor, Inc. * (C) Copyright 2003, Motorola, Inc. * author Andy Fleming * @@ -292,13 +292,12 @@ static uint tsec_local_mdio_read(volatile tsec_mdio_t *phyregs,
/* By default force the TBI PHY into 1000Mbps full duplex when in SGMII mode */ #ifndef CONFIG_TSEC_TBICR_SETTINGS -#define TBICR_SETTINGS ( \ +#define CONFIG_TSEC_TBICR_SETTINGS ( \ TBICR_PHY_RESET \ + | TBICR_ANEG_ENABLE \ | TBICR_FULL_DUPLEX \ | TBICR_SPEED1_SET \ ) -#else -#define TBICR_SETTINGS CONFIG_TSEC_TBICR_SETTINGS #endif /* CONFIG_TSEC_TBICR_SETTINGS */
/* Configure the TBI for SGMII operation */ @@ -311,7 +310,7 @@ static void tsec_configure_serdes(struct tsec_private *priv) tsec_local_mdio_write(priv->phyregs_sgmii, priv->regs->tbipa, TBI_TBICON, TBICON_CLK_SELECT); tsec_local_mdio_write(priv->phyregs_sgmii, priv->regs->tbipa, TBI_CR, - TBICR_SETTINGS); + CONFIG_TSEC_TBICR_SETTINGS); }
/* Discover which PHY is attached to the device, and configure it diff --git a/include/configs/P1_P2_RDB.h b/include/configs/P1_P2_RDB.h index a21afb7..2dfee3d 100644 --- a/include/configs/P1_P2_RDB.h +++ b/include/configs/P1_P2_RDB.h @@ -437,14 +437,6 @@ extern unsigned long get_board_sys_clk(unsigned long dummy);
#define CONFIG_PHY_GIGE 1 /* Include GbE speed/duplex detection */
-/* TBI PHY configuration for SGMII mode */ -#define CONFIG_TSEC_TBICR_SETTINGS ( \ - TBICR_PHY_RESET \ - | TBICR_ANEG_ENABLE \ - | TBICR_FULL_DUPLEX \ - | TBICR_SPEED1_SET \ - ) - #endif /* CONFIG_TSEC_ENET */
/* diff --git a/include/configs/xpedite537x.h b/include/configs/xpedite537x.h index e0a1fa4..a74766d 100644 --- a/include/configs/xpedite537x.h +++ b/include/configs/xpedite537x.h @@ -375,6 +375,16 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy); #define CONFIG_MII_DEFAULT_TSEC 1 /* Allow unregistered phys */ #define CONFIG_ETHPRIME "eTSEC2"
+/* + * In-band SGMII auto-negotiation between TBI and BCM5482S PHY fails, force + * 1000mbps SGMII link + */ +#define CONFIG_TSEC_TBICR_SETTINGS ( \ + TBICR_PHY_RESET \ + | TBICR_FULL_DUPLEX \ + | TBICR_SPEED1_SET \ + ) + #define CONFIG_TSEC1 1 #define CONFIG_TSEC1_NAME "eTSEC1" #define TSEC1_FLAGS (TSEC_GIGABIT | TSEC_REDUCED) diff --git a/include/configs/xpedite550x.h b/include/configs/xpedite550x.h index 42d1f69..a051913 100644 --- a/include/configs/xpedite550x.h +++ b/include/configs/xpedite550x.h @@ -345,6 +345,16 @@ extern unsigned long get_board_ddr_clk(unsigned long dummy); #define CONFIG_MII_DEFAULT_TSEC 1 /* Allow unregistered phys */ #define CONFIG_ETHPRIME "eTSEC2"
+/* + * In-band SGMII auto-negotiation between TBI and BCM5482S PHY fails, force + * 1000mbps SGMII link + */ +#define CONFIG_TSEC_TBICR_SETTINGS ( \ + TBICR_PHY_RESET \ + | TBICR_FULL_DUPLEX \ + | TBICR_SPEED1_SET \ + ) + #define CONFIG_TSEC1 1 #define CONFIG_TSEC1_NAME "eTSEC1" #define TSEC1_FLAGS (TSEC_GIGABIT | TSEC_REDUCED)