diff options
Diffstat (limited to 'target/linux/coldfire/files-2.6.31/drivers/net/phy/broadcom522x.c')
| -rw-r--r-- | target/linux/coldfire/files-2.6.31/drivers/net/phy/broadcom522x.c | 269 |
1 files changed, 269 insertions, 0 deletions
diff --git a/target/linux/coldfire/files-2.6.31/drivers/net/phy/broadcom522x.c b/target/linux/coldfire/files-2.6.31/drivers/net/phy/broadcom522x.c new file mode 100644 index 0000000..f20a519 --- /dev/null +++ b/target/linux/coldfire/files-2.6.31/drivers/net/phy/broadcom522x.c @@ -0,0 +1,269 @@ +/* + *Copyright (C) 2009 Freescale Semiconductor, Inc. All rights reserved. + * Chenghu Wu <b16972@freescale.com> + * + * Driver for broadcom PHYs 522x + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + * + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/mii.h> +#include <linux/ethtool.h> +#include <linux/phy.h> +#include <linux/netdevice.h> + +/* DP83865 phy identifier values */ +#define BCM5222_PHY_ID 0x00406320 + +/* PHY Register */ +#define BCM5222_TIMEOUT 0x100 + +/* MII Registers */ +#define BCM5222_CTRL 0x00 +#define BCM5222_STATUS 0x01 +#define BCM5222_ID_HIGH 0x02 +#define BCM5222_ID_LOW 0x03 +#define BCM5222_AN_ADV 0x04 +#define BCM5222_AN_LP 0x05 +#define BCM5222_AN_EXP 0x06 +#define BCM5222_AN_NEXTPG 0x07 +#define BCM5222_AN_LP_NPTX 0x08 +#define BCM5222_AUX_CS 0x18 +#define BCM5222_AUX_STATUS 0x19 + +/* CONTROL Bits */ +#define BCM5222_CTRL_RESET 0x8000 +#define BCM5222_CTRL_LOOPBACK 0x4000 +#define BCM5222_CTRL_FORCE 0x2000 +#define BCM5222_CTRL_AUTOEN 0x1000 +#define BCM5222_CTRL_PWRDN 0x0800 +#define BCM5222_CTRL_ISOLATE 0x0400 +#define BCM5222_CTRL_RESTART 0x0200 +#define BCM5222_CTRL_DUPLEX 0x0100 +#define BCM5222_CTRL_COLLEN 0x0080 + +/* STATUS Bits */ +#define BCM5222_STATUS_100T4 0x8000 +#define BCM5222_STATUS_100TXFDX 0x4000 +#define BCM5222_STATUS_100TX 0x2000 +#define BCM5222_STATUS_10FDX 0x1000 +#define BCM5222_STATUS_10 0x0800 +#define BCM5222_STATUS_MF_PREAMBLE 0x0040 +#define BCM5222_STATUS_AN_COMPLETE 0x0020 +#define BCM5222_STATUS_REMOTE_FAULT 0x0010 +#define BCM5222_STATUS_AN_CAPABLE 0x0008 +#define BCM5222_STATUS_LINK 0x0004 +#define BCM5222_STATUS_JABBER 0x0002 +#define BCM5222_STATUS_EXT_CAP 0x0001 + +/* ID Values */ +#define BCM5222_ID_HIGH_VAL 0x0040 +#define BCM5222_ID_LOW_VAL 0x6320 + +/* Advertise Bits */ +#define BCM5222_AN_ADV_NEXTPG 0x8000 +#define BCM5222_AN_ADV_REMOTE_FAULT 0x2000 +#define BCM5222_AN_ADV_PAUSE 0x0400 +#define BCM5222_AN_ADV_100T4 0x0200 +#define BCM5222_AN_ADV_100TXFDX 0x0100 +#define BCM5222_AN_ADV_100TX 0x0080 +#define BCM5222_AN_ADV_10FDX 0x0040 +#define BCM5222_AN_ADV_10 0x0020 +#define BCM5222_AN_ADV_8023 0x0001 +#define BCM5222_AN_ADV_ALL \ + (BCM5222_AN_ADV_100TXFDX | \ + BCM5222_AN_ADV_100TXFDX | \ + BCM5222_AN_ADV_100TX | \ + BCM5222_AN_ADV_10FDX | \ + BCM5222_AN_ADV_10 | \ + BCM5222_AN_ADV_8023) + +/* AUX CTRL/STATUS Bits */ +#define BCM5222_AUX_CS_JABBER_DIS 0x8000 +#define BCM5222_AUX_CS_FORCE_LINK 0x4000 +#define BCM5222_AUX_CS_10M_TX_PWR 0x0100 +#define BCM5222_AUX_CS_HSQ_LSQ_MASK 0x00c0 +#define BCM5222_AUX_CS_EDGE_RATE_MASK 0x0030 +#define BCM5222_AUX_CS_AN_IND 0x0008 +#define BCM5222_AUX_CS_SPEED_FORCE 0x0004 +#define BCM5222_AUX_CS_SPEED 0x0002 +#define BCM5222_AUX_CS_DUPLEX 0x0001 + +/* AUX STATUS Bits */ +#define BCM5222_AUX_STATUS_AN_COMP 0x8000 +#define BCM5222_AUX_STATUS_AN_COMPACK 0x4000 +#define BCM5222_AUX_STATUS_AN_ACKDET 0x2000 +#define BCM5222_AUX_STATUS_AN_ABDET 0x1000 +#define BCM5222_AUX_STATUS_AN_PAUSE 0x0800 +#define BCM5222_AUX_STATUS_AN_HCDMASK 0x0700 +#define BCM5222_AUX_STATUS_AN_PDFAULT 0x0080 +#define BCM5222_AUX_STATUS_LP_RMTFAULT 0x0040 +#define BCM5222_AUX_STATUS_LP_PGRX 0x0020 +#define BCM5222_AUX_STATUS_LP_NEGABLE 0x0010 +#define BCM5222_AUX_STATUS_SPEED 0x0008 +#define BCM5222_AUX_STATUS_LINK 0x0004 +#define BCM5222_AUX_STATUS_AN_EN 0x0002 +#define BCM5222_AUX_STATUS_JABBER 0x0001 + +static int bcm5222_config_intr(struct phy_device *phydev) +{ + int err = 0; + printk(KERN_INFO "%s PHY_INTERRUPT %x\n", + __func__, phydev->interrupts); + + return err; +} + +static int bcm5222_ack_interrupt(struct phy_device *phydev) +{ + return 0; +} + +static int bcm5222_config_init(struct phy_device *phydev) +{ + return bcm5222_ack_interrupt(phydev); +} + +static int bcm5222_config_init_old(struct phy_device *phydev) +{ + int timeout; + int flag = 1; + int ret = phy_read(phydev, BCM5222_AUX_STATUS); + if (ret < 0) { + printk(KERN_INFO "%s MII_BCM5222_ISR %x\n", + __func__, ret); + } + /* + * reset + */ + phy_write(phydev, BCM5222_CTRL, BCM5222_CTRL_RESET); + + /* check that it cleared */ + ret = phy_read(phydev, BCM5222_CTRL); + printk(KERN_INFO "%s BCM5222_CTRL %x\n", + __func__, ret); + /*if reset bit is set, return */ + if (ret & BCM5222_CTRL_RESET) { + printk(KERN_ERR "%s %x = BCM5222_CTRL_RESET(%x)\n", + __func__, ret, BCM5222_CTRL_RESET); + return -ETIME; + } + + /* + * setup auto-negotiation + */ + + /* disable */ + phy_write(phydev, BCM5222_CTRL, 0); + ret = phy_read(phydev, BCM5222_CTRL); + printk(KERN_INFO "%s BCM5222_CTRL %x\n", + __func__, ret); + /* set the auto-negotiation advertisement register */ + phy_write(phydev, BCM5222_AN_ADV, BCM5222_AN_ADV_ALL); + ret = phy_read(phydev, BCM5222_AN_ADV); + printk(KERN_INFO "%s BCM5222_AN_ADV %x, BCM5222_AN_ADV_ALL %x\n", + __func__, ret, BCM5222_AN_ADV_ALL); + /* enable */ + phy_write(phydev, BCM5222_CTRL, BCM5222_CTRL_AUTOEN); + ret = phy_read(phydev, BCM5222_CTRL); + printk(KERN_INFO "%s BCM5222_CTRL %x\n", + __func__, ret); + printk(KERN_INFO "** wait for complete\n"); + + /* read aux status reg */ + ret = phy_read(phydev, BCM5222_AUX_STATUS); + /* Wait for the auto-negotiation completion */ + timeout = BCM5222_TIMEOUT; + while (!(ret & BCM5222_AUX_STATUS_AN_COMP)) { + if (!timeout--) { + flag = 0; + printk(KERN_INFO "BCM5222: TIMEOUT\n"); + break; + } + + mdelay(10); + /* Read PHY status register */ + ret = phy_read(phydev, BCM5222_AUX_STATUS); + } + + ret = phy_read(phydev, BCM5222_AUX_STATUS); + ret = phy_read(phydev, BCM5222_AN_ADV); + return 0; +} + +static int bcm5222_read_status(struct phy_device *phydev) +{ + int ret; + ret = phy_read(phydev, BCM5222_AUX_STATUS); + printk(KERN_INFO "%s ret %x\n", __func__, ret); + + if (ret & BCM5222_AUX_STATUS_LINK) + phydev->link = 1; + else + phydev->link = 0; + + if (ret & BCM5222_AUX_STATUS_SPEED) + phydev->speed = SPEED_100; + else + phydev->speed = SPEED_10; + + ret = phy_read(phydev, BCM5222_AUX_CS); + printk(KERN_INFO "%s ret %x\n", __func__, ret); + if (ret & BCM5222_AUX_CS_DUPLEX) + phydev->duplex = DUPLEX_FULL; + else + phydev->duplex = DUPLEX_HALF; + return 0; +} + +static int bcm5222_config_aneg(struct phy_device *phydev) +{ + phy_read(phydev, BCM5222_AUX_STATUS); + phy_read(phydev, BCM5222_AN_ADV); + return 0; +} + +static struct phy_driver bcm5222_driver = { + .phy_id = BCM5222_PHY_ID, + .phy_id_mask = 0xfffffff0, + .name = "Broadcom BCM5222", + .features = PHY_BASIC_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_init = bcm5222_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = bcm5222_ack_interrupt, + .config_intr = bcm5222_config_intr, + .driver = {.owner = THIS_MODULE,} +}; + +static int __init bcm5222_init(void) +{ + int ret; + + ret = phy_driver_register(&bcm5222_driver); + if (ret) + goto err1; + + return 0; +err1: + printk(KERN_INFO "register bcm5222 PHY driver fail\n"); + return ret; +} + +static void __exit bcm5222_exit(void) +{ + phy_driver_unregister(&bcm5222_driver); +} + +MODULE_DESCRIPTION("Broadcom PHY driver"); +MODULE_LICENSE("GPL v2"); + +module_init(bcm5222_init); +module_exit(bcm5222_exit); |