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Date: Wed, 22 Sep 2010 20:56:44 -0700
From: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, gospo@...hat.com, bphilips@...ell.com,
Joseph Gasparakis <joseph.gasparakis@...el.com>,
Jeff Kirsher <jeffrey.t.kirsher@...el.com>
Subject: [net-next-2.6 PATCH 2/2] igb: Add support for DH89xxCC
From: Joseph Gasparakis <joseph.gasparakis@...el.com>
This patch adds support for the Intel(r) DH89xxCC series. The new
device will be using Intel(r) i347-AT4 and Marvell(r) M88E1322 and
M88E1112 PHYs. Support for these devices has also been added here.
Signed-off-by: Joseph Gasparakis <joseph.gasparakis@...el.com>
Tested-by: Jeff Pieper <jeffrey.e.pieper@...el.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@...el.com>
---
drivers/net/igb/e1000_82575.c | 18 +++
drivers/net/igb/e1000_defines.h | 31 ++++++
drivers/net/igb/e1000_hw.h | 2
drivers/net/igb/e1000_phy.c | 206 +++++++++++++++++++++++++++++++++++++--
drivers/net/igb/e1000_phy.h | 2
drivers/net/igb/igb_main.c | 2
6 files changed, 247 insertions(+), 14 deletions(-)
diff --git a/drivers/net/igb/e1000_82575.c b/drivers/net/igb/e1000_82575.c
index 187622f..bc183f5 100644
--- a/drivers/net/igb/e1000_82575.c
+++ b/drivers/net/igb/e1000_82575.c
@@ -132,6 +132,8 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
case E1000_DEV_ID_82580_SERDES:
case E1000_DEV_ID_82580_SGMII:
case E1000_DEV_ID_82580_COPPER_DUAL:
+ case E1000_DEV_ID_DH89XXCC_SGMII:
+ case E1000_DEV_ID_DH89XXCC_SERDES:
mac->type = e1000_82580;
break;
case E1000_DEV_ID_I350_COPPER:
@@ -282,10 +284,18 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw)
/* Verify phy id and set remaining function pointers */
switch (phy->id) {
+ case I347AT4_E_PHY_ID:
+ case M88E1112_E_PHY_ID:
case M88E1111_I_PHY_ID:
phy->type = e1000_phy_m88;
phy->ops.get_phy_info = igb_get_phy_info_m88;
- phy->ops.get_cable_length = igb_get_cable_length_m88;
+
+ if (phy->id == I347AT4_E_PHY_ID ||
+ phy->id == M88E1112_E_PHY_ID)
+ phy->ops.get_cable_length = igb_get_cable_length_m88_gen2;
+ else
+ phy->ops.get_cable_length = igb_get_cable_length_m88;
+
phy->ops.force_speed_duplex = igb_phy_force_speed_duplex_m88;
break;
case IGP03E1000_E_PHY_ID:
@@ -1058,7 +1068,11 @@ static s32 igb_setup_copper_link_82575(struct e1000_hw *hw)
}
switch (hw->phy.type) {
case e1000_phy_m88:
- ret_val = igb_copper_link_setup_m88(hw);
+ if (hw->phy.id == I347AT4_E_PHY_ID ||
+ hw->phy.id == M88E1112_E_PHY_ID)
+ ret_val = igb_copper_link_setup_m88_gen2(hw);
+ else
+ ret_val = igb_copper_link_setup_m88(hw);
break;
case e1000_phy_igp_3:
ret_val = igb_copper_link_setup_igp(hw);
diff --git a/drivers/net/igb/e1000_defines.h b/drivers/net/igb/e1000_defines.h
index bbd2ec3..6222279 100644
--- a/drivers/net/igb/e1000_defines.h
+++ b/drivers/net/igb/e1000_defines.h
@@ -634,6 +634,8 @@
* E = External
*/
#define M88E1111_I_PHY_ID 0x01410CC0
+#define M88E1112_E_PHY_ID 0x01410C90
+#define I347AT4_E_PHY_ID 0x01410DC0
#define IGP03E1000_E_PHY_ID 0x02A80390
#define I82580_I_PHY_ID 0x015403A0
#define I350_I_PHY_ID 0x015403B0
@@ -702,6 +704,35 @@
#define M88E1000_EPSCR_SLAVE_DOWNSHIFT_1X 0x0100
#define M88E1000_EPSCR_TX_CLK_25 0x0070 /* 25 MHz TX_CLK */
+/* Intel i347-AT4 Registers */
+
+#define I347AT4_PCDL 0x10 /* PHY Cable Diagnostics Length */
+#define I347AT4_PCDC 0x15 /* PHY Cable Diagnostics Control */
+#define I347AT4_PAGE_SELECT 0x16
+
+/* i347-AT4 Extended PHY Specific Control Register */
+
+/*
+ * Number of times we will attempt to autonegotiate before downshifting if we
+ * are the master
+ */
+#define I347AT4_PSCR_DOWNSHIFT_ENABLE 0x0800
+#define I347AT4_PSCR_DOWNSHIFT_MASK 0x7000
+#define I347AT4_PSCR_DOWNSHIFT_1X 0x0000
+#define I347AT4_PSCR_DOWNSHIFT_2X 0x1000
+#define I347AT4_PSCR_DOWNSHIFT_3X 0x2000
+#define I347AT4_PSCR_DOWNSHIFT_4X 0x3000
+#define I347AT4_PSCR_DOWNSHIFT_5X 0x4000
+#define I347AT4_PSCR_DOWNSHIFT_6X 0x5000
+#define I347AT4_PSCR_DOWNSHIFT_7X 0x6000
+#define I347AT4_PSCR_DOWNSHIFT_8X 0x7000
+
+/* i347-AT4 PHY Cable Diagnostics Control */
+#define I347AT4_PCDC_CABLE_LENGTH_UNIT 0x0400 /* 0=cm 1=meters */
+
+/* Marvell 1112 only registers */
+#define M88E1112_VCT_DSP_DISTANCE 0x001A
+
/* M88EC018 Rev 2 specific DownShift settings */
#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASK 0x0E00
#define M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X 0x0800
diff --git a/drivers/net/igb/e1000_hw.h b/drivers/net/igb/e1000_hw.h
index cb8db78..c0b017f 100644
--- a/drivers/net/igb/e1000_hw.h
+++ b/drivers/net/igb/e1000_hw.h
@@ -54,6 +54,8 @@ struct e1000_hw;
#define E1000_DEV_ID_82580_SERDES 0x1510
#define E1000_DEV_ID_82580_SGMII 0x1511
#define E1000_DEV_ID_82580_COPPER_DUAL 0x1516
+#define E1000_DEV_ID_DH89XXCC_SGMII 0x0436
+#define E1000_DEV_ID_DH89XXCC_SERDES 0x0438
#define E1000_DEV_ID_I350_COPPER 0x1521
#define E1000_DEV_ID_I350_FIBER 0x1522
#define E1000_DEV_ID_I350_SERDES 0x1523
diff --git a/drivers/net/igb/e1000_phy.c b/drivers/net/igb/e1000_phy.c
index cf1f323..ddd036a 100644
--- a/drivers/net/igb/e1000_phy.c
+++ b/drivers/net/igb/e1000_phy.c
@@ -570,6 +570,89 @@ out:
}
/**
+ * igb_copper_link_setup_m88_gen2 - Setup m88 PHY's for copper link
+ * @hw: pointer to the HW structure
+ *
+ * Sets up MDI/MDI-X and polarity for i347-AT4, m88e1322 and m88e1112 PHY's.
+ * Also enables and sets the downshift parameters.
+ **/
+s32 igb_copper_link_setup_m88_gen2(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data;
+
+ if (phy->reset_disable) {
+ ret_val = 0;
+ goto out;
+ }
+
+ /* Enable CRS on Tx. This must be set for half-duplex operation. */
+ ret_val = phy->ops.read_reg(hw, M88E1000_PHY_SPEC_CTRL, &phy_data);
+ if (ret_val)
+ goto out;
+
+ /*
+ * Options:
+ * MDI/MDI-X = 0 (default)
+ * 0 - Auto for all speeds
+ * 1 - MDI mode
+ * 2 - MDI-X mode
+ * 3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes)
+ */
+ phy_data &= ~M88E1000_PSCR_AUTO_X_MODE;
+
+ switch (phy->mdix) {
+ case 1:
+ phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE;
+ break;
+ case 2:
+ phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE;
+ break;
+ case 3:
+ /* M88E1112 does not support this mode) */
+ if (phy->id != M88E1112_E_PHY_ID) {
+ phy_data |= M88E1000_PSCR_AUTO_X_1000T;
+ break;
+ }
+ case 0:
+ default:
+ phy_data |= M88E1000_PSCR_AUTO_X_MODE;
+ break;
+ }
+
+ /*
+ * Options:
+ * disable_polarity_correction = 0 (default)
+ * Automatic Correction for Reversed Cable Polarity
+ * 0 - Disabled
+ * 1 - Enabled
+ */
+ phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL;
+ if (phy->disable_polarity_correction == 1)
+ phy_data |= M88E1000_PSCR_POLARITY_REVERSAL;
+
+ /* Enable downshift and setting it to X6 */
+ phy_data &= ~I347AT4_PSCR_DOWNSHIFT_MASK;
+ phy_data |= I347AT4_PSCR_DOWNSHIFT_6X;
+ phy_data |= I347AT4_PSCR_DOWNSHIFT_ENABLE;
+
+ ret_val = phy->ops.write_reg(hw, M88E1000_PHY_SPEC_CTRL, phy_data);
+ if (ret_val)
+ goto out;
+
+ /* Commit the changes. */
+ ret_val = igb_phy_sw_reset(hw);
+ if (ret_val) {
+ hw_dbg("Error committing the PHY changes\n");
+ goto out;
+ }
+
+out:
+ return ret_val;
+}
+
+/**
* igb_copper_link_setup_igp - Setup igp PHY's for copper link
* @hw: pointer to the HW structure
*
@@ -1124,18 +1207,25 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw)
goto out;
if (!link) {
- /*
- * We didn't get link.
- * Reset the DSP and cross our fingers.
- */
- ret_val = phy->ops.write_reg(hw,
- M88E1000_PHY_PAGE_SELECT,
- 0x001d);
- if (ret_val)
- goto out;
- ret_val = igb_phy_reset_dsp(hw);
- if (ret_val)
- goto out;
+ if (hw->phy.type != e1000_phy_m88 ||
+ hw->phy.id == I347AT4_E_PHY_ID ||
+ hw->phy.id == M88E1112_E_PHY_ID) {
+ hw_dbg("Link taking longer than expected.\n");
+ } else {
+
+ /*
+ * We didn't get link.
+ * Reset the DSP and cross our fingers.
+ */
+ ret_val = phy->ops.write_reg(hw,
+ M88E1000_PHY_PAGE_SELECT,
+ 0x001d);
+ if (ret_val)
+ goto out;
+ ret_val = igb_phy_reset_dsp(hw);
+ if (ret_val)
+ goto out;
+ }
}
/* Try once more */
@@ -1145,6 +1235,11 @@ s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw)
goto out;
}
+ if (hw->phy.type != e1000_phy_m88 ||
+ hw->phy.id == I347AT4_E_PHY_ID ||
+ hw->phy.id == M88E1112_E_PHY_ID)
+ goto out;
+
ret_val = phy->ops.read_reg(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data);
if (ret_val)
goto out;
@@ -1557,6 +1652,93 @@ out:
return ret_val;
}
+s32 igb_get_cable_length_m88_gen2(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 phy_data, phy_data2, index, default_page, is_cm;
+
+ switch (hw->phy.id) {
+ case I347AT4_E_PHY_ID:
+ /* Remember the original page select and set it to 7 */
+ ret_val = phy->ops.read_reg(hw, I347AT4_PAGE_SELECT,
+ &default_page);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, I347AT4_PAGE_SELECT, 0x07);
+ if (ret_val)
+ goto out;
+
+ /* Get cable length from PHY Cable Diagnostics Control Reg */
+ ret_val = phy->ops.read_reg(hw, (I347AT4_PCDL + phy->addr),
+ &phy_data);
+ if (ret_val)
+ goto out;
+
+ /* Check if the unit of cable length is meters or cm */
+ ret_val = phy->ops.read_reg(hw, I347AT4_PCDC, &phy_data2);
+ if (ret_val)
+ goto out;
+
+ is_cm = !(phy_data & I347AT4_PCDC_CABLE_LENGTH_UNIT);
+
+ /* Populate the phy structure with cable length in meters */
+ phy->min_cable_length = phy_data / (is_cm ? 100 : 1);
+ phy->max_cable_length = phy_data / (is_cm ? 100 : 1);
+ phy->cable_length = phy_data / (is_cm ? 100 : 1);
+
+ /* Reset the page selec to its original value */
+ ret_val = phy->ops.write_reg(hw, I347AT4_PAGE_SELECT,
+ default_page);
+ if (ret_val)
+ goto out;
+ break;
+ case M88E1112_E_PHY_ID:
+ /* Remember the original page select and set it to 5 */
+ ret_val = phy->ops.read_reg(hw, I347AT4_PAGE_SELECT,
+ &default_page);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, I347AT4_PAGE_SELECT, 0x05);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.read_reg(hw, M88E1112_VCT_DSP_DISTANCE,
+ &phy_data);
+ if (ret_val)
+ goto out;
+
+ index = (phy_data & M88E1000_PSSR_CABLE_LENGTH) >>
+ M88E1000_PSSR_CABLE_LENGTH_SHIFT;
+ if (index >= M88E1000_CABLE_LENGTH_TABLE_SIZE - 1) {
+ ret_val = -E1000_ERR_PHY;
+ goto out;
+ }
+
+ phy->min_cable_length = e1000_m88_cable_length_table[index];
+ phy->max_cable_length = e1000_m88_cable_length_table[index + 1];
+
+ phy->cable_length = (phy->min_cable_length +
+ phy->max_cable_length) / 2;
+
+ /* Reset the page select to its original value */
+ ret_val = phy->ops.write_reg(hw, I347AT4_PAGE_SELECT,
+ default_page);
+ if (ret_val)
+ goto out;
+
+ break;
+ default:
+ ret_val = -E1000_ERR_PHY;
+ goto out;
+ }
+
+out:
+ return ret_val;
+}
+
/**
* igb_get_cable_length_igp_2 - Determine cable length for igp2 PHY
* @hw: pointer to the HW structure
diff --git a/drivers/net/igb/e1000_phy.h b/drivers/net/igb/e1000_phy.h
index 565a6db..2cc1177 100644
--- a/drivers/net/igb/e1000_phy.h
+++ b/drivers/net/igb/e1000_phy.h
@@ -45,9 +45,11 @@ s32 igb_check_downshift(struct e1000_hw *hw);
s32 igb_check_reset_block(struct e1000_hw *hw);
s32 igb_copper_link_setup_igp(struct e1000_hw *hw);
s32 igb_copper_link_setup_m88(struct e1000_hw *hw);
+s32 igb_copper_link_setup_m88_gen2(struct e1000_hw *hw);
s32 igb_phy_force_speed_duplex_igp(struct e1000_hw *hw);
s32 igb_phy_force_speed_duplex_m88(struct e1000_hw *hw);
s32 igb_get_cable_length_m88(struct e1000_hw *hw);
+s32 igb_get_cable_length_m88_gen2(struct e1000_hw *hw);
s32 igb_get_cable_length_igp_2(struct e1000_hw *hw);
s32 igb_get_phy_id(struct e1000_hw *hw);
s32 igb_get_phy_info_igp(struct e1000_hw *hw);
diff --git a/drivers/net/igb/igb_main.c b/drivers/net/igb/igb_main.c
index fd922e7..61892b8 100644
--- a/drivers/net/igb/igb_main.c
+++ b/drivers/net/igb/igb_main.c
@@ -71,6 +71,8 @@ static DEFINE_PCI_DEVICE_TABLE(igb_pci_tbl) = {
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_SERDES), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_SGMII), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82580_COPPER_DUAL), board_82575 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SGMII), board_82575 },
+ { PCI_VDEVICE(INTEL, E1000_DEV_ID_DH89XXCC_SERDES), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS), board_82575 },
{ PCI_VDEVICE(INTEL, E1000_DEV_ID_82576_NS_SERDES), board_82575 },
--
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