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Date: Tue, 9 Apr 2013 11:48:06 -0700
From: "Nithin Nayak Sujir" <nsujir@...adcom.com>
To: davem@...emloft.net
cc: netdev@...r.kernel.org, mchan@...adcom.com,
"Nithin Nayak Sujir" <nsujir@...adcom.com>
Subject: [PATCH net-next 06/11] tg3: Add SGMII phy support for 5719/5718
serdes
From: Michael Chan <mchan@...adcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@...adcom.com>
Signed-off-by: Michael Chan <mchan@...adcom.com>
---
drivers/net/ethernet/broadcom/tg3.c | 51 ++++++++++++++++++++++++++++++++-----
drivers/net/ethernet/broadcom/tg3.h | 7 +++++
2 files changed, 51 insertions(+), 7 deletions(-)
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 568dd07..f53e309 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -5465,11 +5465,50 @@ static int tg3_setup_fiber_phy(struct tg3 *tp, int force_reset)
static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
{
- int current_link_up, err = 0;
+ int current_link_up = 0, err = 0;
u32 bmsr, bmcr;
- u16 current_speed;
- u8 current_duplex;
- u32 local_adv, remote_adv;
+ u16 current_speed = SPEED_UNKNOWN;
+ u8 current_duplex = DUPLEX_UNKNOWN;
+ u32 local_adv, remote_adv, sgsr;
+
+ if ((tg3_asic_rev(tp) == ASIC_REV_5719 ||
+ tg3_asic_rev(tp) == ASIC_REV_5720) &&
+ !tg3_readphy(tp, SERDES_TG3_1000X_STATUS, &sgsr) &&
+ (sgsr & SERDES_TG3_SGMII_MODE)) {
+
+ if (force_reset)
+ tg3_phy_reset(tp);
+
+ tp->mac_mode &= ~MAC_MODE_PORT_MODE_MASK;
+
+ if (!(sgsr & SERDES_TG3_LINK_UP)) {
+ tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
+ } else {
+ current_link_up = 1;
+ if (sgsr & SERDES_TG3_SPEED_1000) {
+ current_speed = SPEED_1000;
+ tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
+ } else if (sgsr & SERDES_TG3_SPEED_100) {
+ current_speed = SPEED_100;
+ tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
+ } else {
+ current_speed = SPEED_10;
+ tp->mac_mode |= MAC_MODE_PORT_MODE_MII;
+ }
+
+ if (sgsr & SERDES_TG3_FULL_DUPLEX)
+ current_duplex = DUPLEX_FULL;
+ else
+ current_duplex = DUPLEX_HALF;
+ }
+
+ tw32_f(MAC_MODE, tp->mac_mode);
+ udelay(40);
+
+ tg3_clear_mac_status(tp);
+
+ goto fiber_setup_done;
+ }
tp->mac_mode |= MAC_MODE_PORT_MODE_GMII;
tw32_f(MAC_MODE, tp->mac_mode);
@@ -5480,9 +5519,6 @@ static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
if (force_reset)
tg3_phy_reset(tp);
- current_link_up = 0;
- current_speed = SPEED_UNKNOWN;
- current_duplex = DUPLEX_UNKNOWN;
tp->link_config.rmt_adv = 0;
err |= tg3_readphy(tp, MII_BMSR, &bmsr);
@@ -5600,6 +5636,7 @@ static int tg3_setup_fiber_mii_phy(struct tg3 *tp, int force_reset)
}
}
+fiber_setup_done:
if (current_link_up == 1 && current_duplex == DUPLEX_FULL)
tg3_setup_flow_control(tp, local_adv, remote_adv);
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 1cdc1b6..fd00a38 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -2371,6 +2371,13 @@
#define MII_TG3_FET_SHDW_AUXSTAT2 0x1b
#define MII_TG3_FET_SHDW_AUXSTAT2_APD 0x0020
+/* Serdes PHY Register Definitions */
+#define SERDES_TG3_1000X_STATUS 0x14
+#define SERDES_TG3_SGMII_MODE 0x0001
+#define SERDES_TG3_LINK_UP 0x0002
+#define SERDES_TG3_FULL_DUPLEX 0x0004
+#define SERDES_TG3_SPEED_100 0x0008
+#define SERDES_TG3_SPEED_1000 0x0010
/* APE registers. Accessible through BAR1 */
#define TG3_APE_GPIO_MSG 0x0008
--
1.8.1.4
--
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