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Message-ID: <1251232430.25417@xw6200>
Date: Tue, 25 Aug 2009 13:10:58 -0700
From: "Matt Carlson" <mcarlson@...adcom.com>
To: davem@...emloft.net
cc: netdev@...r.kernel.org, andy@...yhouse.net
Subject: [PATCH 10/12] broadcom: Add AC131 phy support
This patch adds support for the AC131 fast ethernet transceiver.
Signed-off-by: Matt Carlson <mcarlson@...adcom.com>
Reviewed-by: Michael Chan <mchan@...adcom.com>
Reviewed-by: Benjamin Li <benli@...adcom.com>
---
drivers/net/phy/broadcom.c | 158 ++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 158 insertions(+), 0 deletions(-)
diff --git a/drivers/net/phy/broadcom.c b/drivers/net/phy/broadcom.c
index dec4dec..3262a24 100644
--- a/drivers/net/phy/broadcom.c
+++ b/drivers/net/phy/broadcom.c
@@ -142,6 +142,35 @@
#define PHY_BCM_FLAGS_MODE_1000BX 0x00000002
#define PHY_BCM_FLAGS_MODE_COPPER 0x00000001
+
+/*****************************************************************************/
+/* Fast Ethernet Transceiver definitions. */
+/*****************************************************************************/
+
+#define MII_BRCM_FET_INTREG 0x1a /* Interrupt register */
+#define MII_BRCM_FET_IR_MASK 0x0100 /* Mask all interrupts */
+#define MII_BRCM_FET_IR_LINK_EN 0x0200 /* Link status change enable */
+#define MII_BRCM_FET_IR_SPEED_EN 0x0400 /* Link speed change enable */
+#define MII_BRCM_FET_IR_DUPLEX_EN 0x0800 /* Duplex mode change enable */
+#define MII_BRCM_FET_IR_ENABLE 0x4000 /* Interrupt enable */
+
+#define MII_BRCM_FET_BRCMTEST 0x1f /* Brcm test register */
+#define MII_BRCM_FET_BT_SRE 0x0080 /* Shadow register enable */
+
+
+/*** Shadow register definitions ***/
+
+#define MII_BRCM_FET_SHDW_MISCCTRL 0x10 /* Shadow misc ctrl */
+#define MII_BRCM_FET_SHDW_MC_FAME 0x4000 /* Force Auto MDIX enable */
+
+#define MII_BRCM_FET_SHDW_AUXMODE4 0x1a /* Auxiliary mode 4 */
+#define MII_BRCM_FET_SHDW_AM4_LED_MASK 0x0003
+#define MII_BRCM_FET_SHDW_AM4_LED_MODE1 0x0001
+
+#define MII_BRCM_FET_SHDW_AUXSTAT2 0x1b /* Auxiliary status 2 */
+#define MII_BRCM_FET_SHDW_AS2_APDE 0x0020 /* Auto power down enable */
+
+
MODULE_DESCRIPTION("Broadcom PHY driver");
MODULE_AUTHOR("Maciej W. Rozycki");
MODULE_LICENSE("GPL");
@@ -436,6 +465,114 @@ static int bcm5481_config_aneg(struct phy_device *phydev)
return ret;
}
+static int brcm_phy_setbits(struct phy_device *phydev, int reg, int set)
+{
+ int val;
+
+ val = phy_read(phydev, reg);
+ if (val < 0)
+ return val;
+
+ return phy_write(phydev, reg, val | set);
+}
+
+static int brcm_fet_config_init(struct phy_device *phydev)
+{
+ int reg, err, err2, brcmtest;
+
+ /* Reset the PHY to bring it to a known state. */
+ err = phy_write(phydev, MII_BMCR, BMCR_RESET);
+ if (err < 0)
+ return err;
+
+ reg = phy_read(phydev, MII_BRCM_FET_INTREG);
+ if (reg < 0)
+ return reg;
+
+ /* Unmask events we are interested in and mask interrupts globally. */
+ reg = MII_BRCM_FET_IR_DUPLEX_EN |
+ MII_BRCM_FET_IR_SPEED_EN |
+ MII_BRCM_FET_IR_LINK_EN |
+ MII_BRCM_FET_IR_ENABLE |
+ MII_BRCM_FET_IR_MASK;
+
+ err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
+ if (err < 0)
+ return err;
+
+ /* Enable shadow register access */
+ brcmtest = phy_read(phydev, MII_BRCM_FET_BRCMTEST);
+ if (brcmtest < 0)
+ return brcmtest;
+
+ reg = brcmtest | MII_BRCM_FET_BT_SRE;
+
+ err = phy_write(phydev, MII_BRCM_FET_BRCMTEST, reg);
+ if (err < 0)
+ return err;
+
+ /* Set the LED mode */
+ reg = phy_read(phydev, MII_BRCM_FET_SHDW_AUXMODE4);
+ if (reg < 0) {
+ err = reg;
+ goto done;
+ }
+
+ reg &= ~MII_BRCM_FET_SHDW_AM4_LED_MASK;
+ reg |= MII_BRCM_FET_SHDW_AM4_LED_MODE1;
+
+ err = phy_write(phydev, MII_BRCM_FET_SHDW_AUXMODE4, reg);
+ if (err < 0)
+ goto done;
+
+ /* Enable auto MDIX */
+ err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_MISCCTRL,
+ MII_BRCM_FET_SHDW_MC_FAME);
+ if (err < 0)
+ goto done;
+
+ /* Enable auto power down */
+ err = brcm_phy_setbits(phydev, MII_BRCM_FET_SHDW_AUXSTAT2,
+ MII_BRCM_FET_SHDW_AS2_APDE);
+
+done:
+ /* Disable shadow register access */
+ err2 = phy_write(phydev, MII_BRCM_FET_BRCMTEST, brcmtest);
+ if (!err)
+ err = err2;
+
+ return err;
+}
+
+static int brcm_fet_ack_interrupt(struct phy_device *phydev)
+{
+ int reg;
+
+ /* Clear pending interrupts. */
+ reg = phy_read(phydev, MII_BRCM_FET_INTREG);
+ if (reg < 0)
+ return reg;
+
+ return 0;
+}
+
+static int brcm_fet_config_intr(struct phy_device *phydev)
+{
+ int reg, err;
+
+ reg = phy_read(phydev, MII_BRCM_FET_INTREG);
+ if (reg < 0)
+ return reg;
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+ reg &= ~MII_BRCM_FET_IR_MASK;
+ else
+ reg |= MII_BRCM_FET_IR_MASK;
+
+ err = phy_write(phydev, MII_BRCM_FET_INTREG, reg);
+ return err;
+}
+
static struct phy_driver bcm5411_driver = {
.phy_id = 0x00206070,
.phy_id_mask = 0xfffffff0,
@@ -571,6 +708,21 @@ static struct phy_driver bcm57780_driver = {
.driver = { .owner = THIS_MODULE },
};
+static struct phy_driver bcmac131_driver = {
+ .phy_id = 0x0143bc70,
+ .phy_id_mask = 0xfffffff0,
+ .name = "Broadcom BCMAC131",
+ .features = PHY_BASIC_FEATURES |
+ SUPPORTED_Pause | SUPPORTED_Asym_Pause,
+ .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT,
+ .config_init = brcm_fet_config_init,
+ .config_aneg = genphy_config_aneg,
+ .read_status = genphy_read_status,
+ .ack_interrupt = brcm_fet_ack_interrupt,
+ .config_intr = brcm_fet_config_intr,
+ .driver = { .owner = THIS_MODULE },
+};
+
static int __init broadcom_init(void)
{
int ret;
@@ -602,8 +754,13 @@ static int __init broadcom_init(void)
ret = phy_driver_register(&bcm57780_driver);
if (ret)
goto out_57780;
+ ret = phy_driver_register(&bcmac131_driver);
+ if (ret)
+ goto out_ac131;
return ret;
+out_ac131:
+ phy_driver_unregister(&bcm57780_driver);
out_57780:
phy_driver_unregister(&bcm50610m_driver);
out_50610m:
@@ -626,6 +783,7 @@ out_5411:
static void __exit broadcom_exit(void)
{
+ phy_driver_unregister(&bcmac131_driver);
phy_driver_unregister(&bcm57780_driver);
phy_driver_unregister(&bcm50610m_driver);
phy_driver_unregister(&bcm50610_driver);
--
1.6.3.3
--
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