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11ecf8c55b
Most modern broadcom PHYs support ECD (enhanced cable diagnostics). Add support for it in the bcm-phy-lib so they can easily be used in the PHY driver. There are two access methods for ECD: legacy by expansion registers and via the new RDB registers which are exclusive. Provide functions in two variants where the PHY driver can choose from. To keep things simple for now, we just switch the register access to expansion registers in the RDB variant for now. On the flipside, we have to keep a bus lock to prevent any other non-legacy access on the PHY. The results of the intra-pair tests are inconclusive (at least for the BCM54140). Most of the times half the length is reported but sometimes the length is correct. Signed-off-by: Michael Walle <michael@walle.cc> Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
90 lines
3.3 KiB
C
90 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2015 Broadcom Corporation
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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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/* 28nm only register definitions */
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#define MISC_ADDR(base, channel) base, channel
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#define DSP_TAP10 MISC_ADDR(0x0a, 0)
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#define PLL_PLLCTRL_1 MISC_ADDR(0x32, 1)
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#define PLL_PLLCTRL_2 MISC_ADDR(0x32, 2)
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#define PLL_PLLCTRL_4 MISC_ADDR(0x33, 0)
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#define AFE_RXCONFIG_0 MISC_ADDR(0x38, 0)
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#define AFE_RXCONFIG_1 MISC_ADDR(0x38, 1)
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#define AFE_RXCONFIG_2 MISC_ADDR(0x38, 2)
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#define AFE_RX_LP_COUNTER MISC_ADDR(0x38, 3)
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#define AFE_TX_CONFIG MISC_ADDR(0x39, 0)
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#define AFE_VDCA_ICTRL_0 MISC_ADDR(0x39, 1)
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#define AFE_VDAC_OTHERS_0 MISC_ADDR(0x39, 3)
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#define AFE_HPF_TRIM_OTHERS MISC_ADDR(0x3a, 0)
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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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int __bcm_phy_modify_exp(struct phy_device *phydev, u16 reg, u16 mask, u16 set);
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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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int bcm_phy_modify_exp(struct phy_device *phydev, u16 reg, u16 mask, u16 set);
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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_write_rdb(struct phy_device *phydev, u16 rdb, u16 val);
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int bcm_phy_write_rdb(struct phy_device *phydev, u16 rdb, u16 val);
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int __bcm_phy_read_rdb(struct phy_device *phydev, u16 rdb);
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int bcm_phy_read_rdb(struct phy_device *phydev, u16 rdb);
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int __bcm_phy_modify_rdb(struct phy_device *phydev, u16 rdb, u16 mask,
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u16 set);
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int bcm_phy_modify_rdb(struct phy_device *phydev, u16 rdb, u16 mask,
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u16 set);
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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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void bcm_phy_r_rc_cal_reset(struct phy_device *phydev);
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int bcm_phy_28nm_a0b0_afe_config_init(struct phy_device *phydev);
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int bcm_phy_enable_jumbo(struct phy_device *phydev);
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int bcm_phy_cable_test_get_status_rdb(struct phy_device *phydev,
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bool *finished);
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int bcm_phy_cable_test_start_rdb(struct phy_device *phydev);
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int bcm_phy_cable_test_start(struct phy_device *phydev);
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int bcm_phy_cable_test_get_status(struct phy_device *phydev, bool *finished);
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#endif /* _LINUX_BCM_PHY_LIB_H */
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