forked from Minki/linux
79fb218d97
On newer PHYs, we need to select the expansion register to write with
setting bits [11:8] to 0xf. This was done correctly by bcm7xxx.c prior
to being migrated to generic code under bcm-phy-lib.c which
unfortunately used the older implementation from the BCM54xx days.
Fix this by creating an inline stub: bcm_write_exp_sel() which adds the
correct value (MII_BCM54XX_EXP_SEL_ER) and update both the Cygnus PHY
and BCM7xxx PHY drivers which require setting these bits.
broadcom.c is unchanged because some PHYs even use a different selector
method, so let them specify it directly (e.g: SerDes secondary selector).
Fixes: a1cba5613e ("net: phy: Add Broadcom phy library for common interfaces")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/*
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* Copyright (C) 2015 Broadcom Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation version 2.
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*
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* This program is distributed "as is" WITHOUT ANY WARRANTY of any
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* kind, whether express or implied; without even the implied warranty
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* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef _LINUX_BCM_PHY_LIB_H
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#define _LINUX_BCM_PHY_LIB_H
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#include <linux/brcmphy.h>
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#include <linux/phy.h>
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int bcm_phy_write_exp(struct phy_device *phydev, u16 reg, u16 val);
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int bcm_phy_read_exp(struct phy_device *phydev, u16 reg);
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static inline int bcm_phy_write_exp_sel(struct phy_device *phydev,
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u16 reg, u16 val)
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{
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return bcm_phy_write_exp(phydev, reg | MII_BCM54XX_EXP_SEL_ER, val);
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}
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int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val);
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int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum);
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int bcm_phy_write_misc(struct phy_device *phydev,
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u16 reg, u16 chl, u16 value);
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int bcm_phy_read_misc(struct phy_device *phydev,
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u16 reg, u16 chl);
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int bcm_phy_write_shadow(struct phy_device *phydev, u16 shadow,
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u16 val);
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int bcm_phy_read_shadow(struct phy_device *phydev, u16 shadow);
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int bcm_phy_ack_intr(struct phy_device *phydev);
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int bcm_phy_config_intr(struct phy_device *phydev);
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int bcm_phy_enable_apd(struct phy_device *phydev, bool dll_pwr_down);
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int bcm_phy_set_eee(struct phy_device *phydev, bool enable);
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int bcm_phy_downshift_get(struct phy_device *phydev, u8 *count);
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int bcm_phy_downshift_set(struct phy_device *phydev, u8 count);
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int bcm_phy_get_sset_count(struct phy_device *phydev);
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void bcm_phy_get_strings(struct phy_device *phydev, u8 *data);
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void bcm_phy_get_stats(struct phy_device *phydev, u64 *shadow,
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struct ethtool_stats *stats, u64 *data);
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#endif /* _LINUX_BCM_PHY_LIB_H */
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