blob: 334a6904ca5a37ac41326e815f18caab1bc65a19 [file] [log] [blame]
// SPDX-License-Identifier: GPL-2.0
/*
* Driver for Aquantia PHY
*
* Author: Shaohui Xie <Shaohui.Xie@freescale.com>
*
* Copyright 2015 Freescale Semiconductor, Inc.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/bitfield.h>
#include <linux/phy.h>
#include "aquantia.h"
#define PHY_ID_AQ1202 0x03a1b445
#define PHY_ID_AQ2104 0x03a1b460
#define PHY_ID_AQR105 0x03a1b4a2
#define PHY_ID_AQR106 0x03a1b4d0
#define PHY_ID_AQR107 0x03a1b4e0
#define PHY_ID_AQCS109 0x03a1b5c2
#define PHY_ID_AQR405 0x03a1b4b0
#define PHY_ID_AQR112 0x03a1b662
#define PHY_ID_AQR412 0x03a1b712
#define PHY_ID_AQR113C 0x31c31c12
#define MDIO_PHYXS_VEND_IF_STATUS 0xe812
#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_MASK GENMASK(7, 3)
#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_KR 0
#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_KX 1
#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_XFI 2
#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_USXGMII 3
#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_XAUI 4
#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_SGMII 6
#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_RXAUI 7
#define MDIO_PHYXS_VEND_IF_STATUS_TYPE_OCSGMII 10
#define MDIO_AN_VEND_PROV 0xc400
#define MDIO_AN_VEND_PROV_1000BASET_FULL BIT(15)
#define MDIO_AN_VEND_PROV_1000BASET_HALF BIT(14)
#define MDIO_AN_VEND_PROV_5000BASET_FULL BIT(11)
#define MDIO_AN_VEND_PROV_2500BASET_FULL BIT(10)
#define MDIO_AN_VEND_PROV_DOWNSHIFT_EN BIT(4)
#define MDIO_AN_VEND_PROV_DOWNSHIFT_MASK GENMASK(3, 0)
#define MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT 4
#define MDIO_AN_TX_VEND_STATUS1 0xc800
#define MDIO_AN_TX_VEND_STATUS1_RATE_MASK GENMASK(3, 1)
#define MDIO_AN_TX_VEND_STATUS1_10BASET 0
#define MDIO_AN_TX_VEND_STATUS1_100BASETX 1
#define MDIO_AN_TX_VEND_STATUS1_1000BASET 2
#define MDIO_AN_TX_VEND_STATUS1_10GBASET 3
#define MDIO_AN_TX_VEND_STATUS1_2500BASET 4
#define MDIO_AN_TX_VEND_STATUS1_5000BASET 5
#define MDIO_AN_TX_VEND_STATUS1_FULL_DUPLEX BIT(0)
#define MDIO_AN_TX_VEND_INT_STATUS1 0xcc00
#define MDIO_AN_TX_VEND_INT_STATUS1_DOWNSHIFT BIT(1)
#define MDIO_AN_TX_VEND_INT_STATUS2 0xcc01
#define MDIO_AN_TX_VEND_INT_STATUS2_MASK BIT(0)
#define MDIO_AN_TX_VEND_INT_MASK2 0xd401
#define MDIO_AN_TX_VEND_INT_MASK2_LINK BIT(0)
#define MDIO_AN_RX_LP_STAT1 0xe820
#define MDIO_AN_RX_LP_STAT1_1000BASET_FULL BIT(15)
#define MDIO_AN_RX_LP_STAT1_1000BASET_HALF BIT(14)
#define MDIO_AN_RX_LP_STAT1_SHORT_REACH BIT(13)
#define MDIO_AN_RX_LP_STAT1_AQRATE_DOWNSHIFT BIT(12)
#define MDIO_AN_RX_LP_STAT1_AQ_PHY BIT(2)
#define MDIO_AN_RX_LP_STAT4 0xe823
#define MDIO_AN_RX_LP_STAT4_FW_MAJOR GENMASK(15, 8)
#define MDIO_AN_RX_LP_STAT4_FW_MINOR GENMASK(7, 0)
#define MDIO_AN_RX_VEND_STAT3 0xe832
#define MDIO_AN_RX_VEND_STAT3_AFR BIT(0)
/* MDIO_MMD_C22EXT */
#define MDIO_C22EXT_STAT_SGMII_RX_GOOD_FRAMES 0xd292
#define MDIO_C22EXT_STAT_SGMII_RX_BAD_FRAMES 0xd294
#define MDIO_C22EXT_STAT_SGMII_RX_FALSE_CARRIER 0xd297
#define MDIO_C22EXT_STAT_SGMII_TX_GOOD_FRAMES 0xd313
#define MDIO_C22EXT_STAT_SGMII_TX_BAD_FRAMES 0xd315
#define MDIO_C22EXT_STAT_SGMII_TX_FALSE_CARRIER 0xd317
#define MDIO_C22EXT_STAT_SGMII_TX_COLLISIONS 0xd318
#define MDIO_C22EXT_STAT_SGMII_TX_LINE_COLLISIONS 0xd319
#define MDIO_C22EXT_STAT_SGMII_TX_FRAME_ALIGN_ERR 0xd31a
#define MDIO_C22EXT_STAT_SGMII_TX_RUNT_FRAMES 0xd31b
/* Vendor specific 1, MDIO_MMD_VEND1 */
#define VEND1_GLOBAL_FW_ID 0x0020
#define VEND1_GLOBAL_FW_ID_MAJOR GENMASK(15, 8)
#define VEND1_GLOBAL_FW_ID_MINOR GENMASK(7, 0)
#define VEND1_GLOBAL_GEN_STAT2 0xc831
#define VEND1_GLOBAL_GEN_STAT2_OP_IN_PROG BIT(15)
/* The following registers all have similar layouts; first the registers... */
#define VEND1_GLOBAL_CFG_10M 0x0310
#define VEND1_GLOBAL_CFG_100M 0x031b
#define VEND1_GLOBAL_CFG_1G 0x031c
#define VEND1_GLOBAL_CFG_2_5G 0x031d
#define VEND1_GLOBAL_CFG_5G 0x031e
#define VEND1_GLOBAL_CFG_10G 0x031f
/* ...and now the fields */
#define VEND1_GLOBAL_CFG_RATE_ADAPT GENMASK(8, 7)
#define VEND1_GLOBAL_CFG_RATE_ADAPT_NONE 0
#define VEND1_GLOBAL_CFG_RATE_ADAPT_USX 1
#define VEND1_GLOBAL_CFG_RATE_ADAPT_PAUSE 2
#define VEND1_GLOBAL_RSVD_STAT1 0xc885
#define VEND1_GLOBAL_RSVD_STAT1_FW_BUILD_ID GENMASK(7, 4)
#define VEND1_GLOBAL_RSVD_STAT1_PROV_ID GENMASK(3, 0)
#define VEND1_GLOBAL_RSVD_STAT9 0xc88d
#define VEND1_GLOBAL_RSVD_STAT9_MODE GENMASK(7, 0)
#define VEND1_GLOBAL_RSVD_STAT9_1000BT2 0x23
#define VEND1_GLOBAL_INT_STD_STATUS 0xfc00
#define VEND1_GLOBAL_INT_VEND_STATUS 0xfc01
#define VEND1_GLOBAL_INT_STD_MASK 0xff00
#define VEND1_GLOBAL_INT_STD_MASK_PMA1 BIT(15)
#define VEND1_GLOBAL_INT_STD_MASK_PMA2 BIT(14)
#define VEND1_GLOBAL_INT_STD_MASK_PCS1 BIT(13)
#define VEND1_GLOBAL_INT_STD_MASK_PCS2 BIT(12)
#define VEND1_GLOBAL_INT_STD_MASK_PCS3 BIT(11)
#define VEND1_GLOBAL_INT_STD_MASK_PHY_XS1 BIT(10)
#define VEND1_GLOBAL_INT_STD_MASK_PHY_XS2 BIT(9)
#define VEND1_GLOBAL_INT_STD_MASK_AN1 BIT(8)
#define VEND1_GLOBAL_INT_STD_MASK_AN2 BIT(7)
#define VEND1_GLOBAL_INT_STD_MASK_GBE BIT(6)
#define VEND1_GLOBAL_INT_STD_MASK_ALL BIT(0)
#define VEND1_GLOBAL_INT_VEND_MASK 0xff01
#define VEND1_GLOBAL_INT_VEND_MASK_PMA BIT(15)
#define VEND1_GLOBAL_INT_VEND_MASK_PCS BIT(14)
#define VEND1_GLOBAL_INT_VEND_MASK_PHY_XS BIT(13)
#define VEND1_GLOBAL_INT_VEND_MASK_AN BIT(12)
#define VEND1_GLOBAL_INT_VEND_MASK_GBE BIT(11)
#define VEND1_GLOBAL_INT_VEND_MASK_GLOBAL1 BIT(2)
#define VEND1_GLOBAL_INT_VEND_MASK_GLOBAL2 BIT(1)
#define VEND1_GLOBAL_INT_VEND_MASK_GLOBAL3 BIT(0)
/* Sleep and timeout for checking if the Processor-Intensive
* MDIO operation is finished
*/
#define AQR107_OP_IN_PROG_SLEEP 1000
#define AQR107_OP_IN_PROG_TIMEOUT 100000
struct aqr107_hw_stat {
const char *name;
int reg;
int size;
};
#define SGMII_STAT(n, r, s) { n, MDIO_C22EXT_STAT_SGMII_ ## r, s }
static const struct aqr107_hw_stat aqr107_hw_stats[] = {
SGMII_STAT("sgmii_rx_good_frames", RX_GOOD_FRAMES, 26),
SGMII_STAT("sgmii_rx_bad_frames", RX_BAD_FRAMES, 26),
SGMII_STAT("sgmii_rx_false_carrier_events", RX_FALSE_CARRIER, 8),
SGMII_STAT("sgmii_tx_good_frames", TX_GOOD_FRAMES, 26),
SGMII_STAT("sgmii_tx_bad_frames", TX_BAD_FRAMES, 26),
SGMII_STAT("sgmii_tx_false_carrier_events", TX_FALSE_CARRIER, 8),
SGMII_STAT("sgmii_tx_collisions", TX_COLLISIONS, 8),
SGMII_STAT("sgmii_tx_line_collisions", TX_LINE_COLLISIONS, 8),
SGMII_STAT("sgmii_tx_frame_alignment_err", TX_FRAME_ALIGN_ERR, 16),
SGMII_STAT("sgmii_tx_runt_frames", TX_RUNT_FRAMES, 22),
};
#define AQR107_SGMII_STAT_SZ ARRAY_SIZE(aqr107_hw_stats)
struct aqr107_priv {
u64 sgmii_stats[AQR107_SGMII_STAT_SZ];
};
static int aqr107_get_sset_count(struct phy_device *phydev)
{
return AQR107_SGMII_STAT_SZ;
}
static void aqr107_get_strings(struct phy_device *phydev, u8 *data)
{
int i;
for (i = 0; i < AQR107_SGMII_STAT_SZ; i++)
strscpy(data + i * ETH_GSTRING_LEN, aqr107_hw_stats[i].name,
ETH_GSTRING_LEN);
}
static u64 aqr107_get_stat(struct phy_device *phydev, int index)
{
const struct aqr107_hw_stat *stat = aqr107_hw_stats + index;
int len_l = min(stat->size, 16);
int len_h = stat->size - len_l;
u64 ret;
int val;
val = phy_read_mmd(phydev, MDIO_MMD_C22EXT, stat->reg);
if (val < 0)
return U64_MAX;
ret = val & GENMASK(len_l - 1, 0);
if (len_h) {
val = phy_read_mmd(phydev, MDIO_MMD_C22EXT, stat->reg + 1);
if (val < 0)
return U64_MAX;
ret += (val & GENMASK(len_h - 1, 0)) << 16;
}
return ret;
}
static void aqr107_get_stats(struct phy_device *phydev,
struct ethtool_stats *stats, u64 *data)
{
struct aqr107_priv *priv = phydev->priv;
u64 val;
int i;
for (i = 0; i < AQR107_SGMII_STAT_SZ; i++) {
val = aqr107_get_stat(phydev, i);
if (val == U64_MAX)
phydev_err(phydev, "Reading HW Statistics failed for %s\n",
aqr107_hw_stats[i].name);
else
priv->sgmii_stats[i] += val;
data[i] = priv->sgmii_stats[i];
}
}
static int aqr_config_aneg(struct phy_device *phydev)
{
bool changed = false;
u16 reg;
int ret;
if (phydev->autoneg == AUTONEG_DISABLE)
return genphy_c45_pma_setup_forced(phydev);
ret = genphy_c45_an_config_aneg(phydev);
if (ret < 0)
return ret;
if (ret > 0)
changed = true;
/* Clause 45 has no standardized support for 1000BaseT, therefore
* use vendor registers for this mode.
*/
reg = 0;
if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
phydev->advertising))
reg |= MDIO_AN_VEND_PROV_1000BASET_FULL;
if (linkmode_test_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
phydev->advertising))
reg |= MDIO_AN_VEND_PROV_1000BASET_HALF;
/* Handle the case when the 2.5G and 5G speeds are not advertised */
if (linkmode_test_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
phydev->advertising))
reg |= MDIO_AN_VEND_PROV_2500BASET_FULL;
if (linkmode_test_bit(ETHTOOL_LINK_MODE_5000baseT_Full_BIT,
phydev->advertising))
reg |= MDIO_AN_VEND_PROV_5000BASET_FULL;
ret = phy_modify_mmd_changed(phydev, MDIO_MMD_AN, MDIO_AN_VEND_PROV,
MDIO_AN_VEND_PROV_1000BASET_HALF |
MDIO_AN_VEND_PROV_1000BASET_FULL |
MDIO_AN_VEND_PROV_2500BASET_FULL |
MDIO_AN_VEND_PROV_5000BASET_FULL, reg);
if (ret < 0)
return ret;
if (ret > 0)
changed = true;
return genphy_c45_check_and_restart_aneg(phydev, changed);
}
static int aqr_config_intr(struct phy_device *phydev)
{
bool en = phydev->interrupts == PHY_INTERRUPT_ENABLED;
int err;
if (en) {
/* Clear any pending interrupts before enabling them */
err = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_TX_VEND_INT_STATUS2);
if (err < 0)
return err;
}
err = phy_write_mmd(phydev, MDIO_MMD_AN, MDIO_AN_TX_VEND_INT_MASK2,
en ? MDIO_AN_TX_VEND_INT_MASK2_LINK : 0);
if (err < 0)
return err;
err = phy_write_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_INT_STD_MASK,
en ? VEND1_GLOBAL_INT_STD_MASK_ALL : 0);
if (err < 0)
return err;
err = phy_write_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_INT_VEND_MASK,
en ? VEND1_GLOBAL_INT_VEND_MASK_GLOBAL3 |
VEND1_GLOBAL_INT_VEND_MASK_AN : 0);
if (err < 0)
return err;
if (!en) {
/* Clear any pending interrupts after we have disabled them */
err = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_TX_VEND_INT_STATUS2);
if (err < 0)
return err;
}
return 0;
}
static irqreturn_t aqr_handle_interrupt(struct phy_device *phydev)
{
int irq_status;
irq_status = phy_read_mmd(phydev, MDIO_MMD_AN,
MDIO_AN_TX_VEND_INT_STATUS2);
if (irq_status < 0) {
phy_error(phydev);
return IRQ_NONE;
}
if (!(irq_status & MDIO_AN_TX_VEND_INT_STATUS2_MASK))
return IRQ_NONE;
phy_trigger_machine(phydev);
return IRQ_HANDLED;
}
static int aqr_read_status(struct phy_device *phydev)
{
int val;
if (phydev->autoneg == AUTONEG_ENABLE) {
val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_RX_LP_STAT1);
if (val < 0)
return val;
linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
phydev->lp_advertising,
val & MDIO_AN_RX_LP_STAT1_1000BASET_FULL);
linkmode_mod_bit(ETHTOOL_LINK_MODE_1000baseT_Half_BIT,
phydev->lp_advertising,
val & MDIO_AN_RX_LP_STAT1_1000BASET_HALF);
}
return genphy_c45_read_status(phydev);
}
static int aqr107_read_rate(struct phy_device *phydev)
{
u32 config_reg;
int val;
val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_TX_VEND_STATUS1);
if (val < 0)
return val;
if (val & MDIO_AN_TX_VEND_STATUS1_FULL_DUPLEX)
phydev->duplex = DUPLEX_FULL;
else
phydev->duplex = DUPLEX_HALF;
switch (FIELD_GET(MDIO_AN_TX_VEND_STATUS1_RATE_MASK, val)) {
case MDIO_AN_TX_VEND_STATUS1_10BASET:
phydev->speed = SPEED_10;
config_reg = VEND1_GLOBAL_CFG_10M;
break;
case MDIO_AN_TX_VEND_STATUS1_100BASETX:
phydev->speed = SPEED_100;
config_reg = VEND1_GLOBAL_CFG_100M;
break;
case MDIO_AN_TX_VEND_STATUS1_1000BASET:
phydev->speed = SPEED_1000;
config_reg = VEND1_GLOBAL_CFG_1G;
break;
case MDIO_AN_TX_VEND_STATUS1_2500BASET:
phydev->speed = SPEED_2500;
config_reg = VEND1_GLOBAL_CFG_2_5G;
break;
case MDIO_AN_TX_VEND_STATUS1_5000BASET:
phydev->speed = SPEED_5000;
config_reg = VEND1_GLOBAL_CFG_5G;
break;
case MDIO_AN_TX_VEND_STATUS1_10GBASET:
phydev->speed = SPEED_10000;
config_reg = VEND1_GLOBAL_CFG_10G;
break;
default:
phydev->speed = SPEED_UNKNOWN;
return 0;
}
val = phy_read_mmd(phydev, MDIO_MMD_VEND1, config_reg);
if (val < 0)
return val;
if (FIELD_GET(VEND1_GLOBAL_CFG_RATE_ADAPT, val) ==
VEND1_GLOBAL_CFG_RATE_ADAPT_PAUSE)
phydev->rate_matching = RATE_MATCH_PAUSE;
else
phydev->rate_matching = RATE_MATCH_NONE;
return 0;
}
static int aqr107_read_status(struct phy_device *phydev)
{
int val, ret;
ret = aqr_read_status(phydev);
if (ret)
return ret;
if (!phydev->link || phydev->autoneg == AUTONEG_DISABLE)
return 0;
val = phy_read_mmd(phydev, MDIO_MMD_PHYXS, MDIO_PHYXS_VEND_IF_STATUS);
if (val < 0)
return val;
switch (FIELD_GET(MDIO_PHYXS_VEND_IF_STATUS_TYPE_MASK, val)) {
case MDIO_PHYXS_VEND_IF_STATUS_TYPE_KR:
phydev->interface = PHY_INTERFACE_MODE_10GKR;
break;
case MDIO_PHYXS_VEND_IF_STATUS_TYPE_KX:
phydev->interface = PHY_INTERFACE_MODE_1000BASEKX;
break;
case MDIO_PHYXS_VEND_IF_STATUS_TYPE_XFI:
phydev->interface = PHY_INTERFACE_MODE_10GBASER;
break;
case MDIO_PHYXS_VEND_IF_STATUS_TYPE_USXGMII:
phydev->interface = PHY_INTERFACE_MODE_USXGMII;
break;
case MDIO_PHYXS_VEND_IF_STATUS_TYPE_XAUI:
phydev->interface = PHY_INTERFACE_MODE_XAUI;
break;
case MDIO_PHYXS_VEND_IF_STATUS_TYPE_SGMII:
phydev->interface = PHY_INTERFACE_MODE_SGMII;
break;
case MDIO_PHYXS_VEND_IF_STATUS_TYPE_RXAUI:
phydev->interface = PHY_INTERFACE_MODE_RXAUI;
break;
case MDIO_PHYXS_VEND_IF_STATUS_TYPE_OCSGMII:
phydev->interface = PHY_INTERFACE_MODE_2500BASEX;
break;
default:
phydev->interface = PHY_INTERFACE_MODE_NA;
break;
}
/* Read possibly downshifted rate from vendor register */
return aqr107_read_rate(phydev);
}
static int aqr107_get_downshift(struct phy_device *phydev, u8 *data)
{
int val, cnt, enable;
val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_VEND_PROV);
if (val < 0)
return val;
enable = FIELD_GET(MDIO_AN_VEND_PROV_DOWNSHIFT_EN, val);
cnt = FIELD_GET(MDIO_AN_VEND_PROV_DOWNSHIFT_MASK, val);
*data = enable && cnt ? cnt : DOWNSHIFT_DEV_DISABLE;
return 0;
}
static int aqr107_set_downshift(struct phy_device *phydev, u8 cnt)
{
int val = 0;
if (!FIELD_FIT(MDIO_AN_VEND_PROV_DOWNSHIFT_MASK, cnt))
return -E2BIG;
if (cnt != DOWNSHIFT_DEV_DISABLE) {
val = MDIO_AN_VEND_PROV_DOWNSHIFT_EN;
val |= FIELD_PREP(MDIO_AN_VEND_PROV_DOWNSHIFT_MASK, cnt);
}
return phy_modify_mmd(phydev, MDIO_MMD_AN, MDIO_AN_VEND_PROV,
MDIO_AN_VEND_PROV_DOWNSHIFT_EN |
MDIO_AN_VEND_PROV_DOWNSHIFT_MASK, val);
}
static int aqr107_get_tunable(struct phy_device *phydev,
struct ethtool_tunable *tuna, void *data)
{
switch (tuna->id) {
case ETHTOOL_PHY_DOWNSHIFT:
return aqr107_get_downshift(phydev, data);
default:
return -EOPNOTSUPP;
}
}
static int aqr107_set_tunable(struct phy_device *phydev,
struct ethtool_tunable *tuna, const void *data)
{
switch (tuna->id) {
case ETHTOOL_PHY_DOWNSHIFT:
return aqr107_set_downshift(phydev, *(const u8 *)data);
default:
return -EOPNOTSUPP;
}
}
/* If we configure settings whilst firmware is still initializing the chip,
* then these settings may be overwritten. Therefore make sure chip
* initialization has completed. Use presence of the firmware ID as
* indicator for initialization having completed.
* The chip also provides a "reset completed" bit, but it's cleared after
* read. Therefore function would time out if called again.
*/
static int aqr107_wait_reset_complete(struct phy_device *phydev)
{
int val;
return phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1,
VEND1_GLOBAL_FW_ID, val, val != 0,
20000, 2000000, false);
}
static void aqr107_chip_info(struct phy_device *phydev)
{
u8 fw_major, fw_minor, build_id, prov_id;
int val;
val = phy_read_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_FW_ID);
if (val < 0)
return;
fw_major = FIELD_GET(VEND1_GLOBAL_FW_ID_MAJOR, val);
fw_minor = FIELD_GET(VEND1_GLOBAL_FW_ID_MINOR, val);
val = phy_read_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_RSVD_STAT1);
if (val < 0)
return;
build_id = FIELD_GET(VEND1_GLOBAL_RSVD_STAT1_FW_BUILD_ID, val);
prov_id = FIELD_GET(VEND1_GLOBAL_RSVD_STAT1_PROV_ID, val);
phydev_dbg(phydev, "FW %u.%u, Build %u, Provisioning %u\n",
fw_major, fw_minor, build_id, prov_id);
}
static int aqr107_config_init(struct phy_device *phydev)
{
int ret;
/* Check that the PHY interface type is compatible */
if (phydev->interface != PHY_INTERFACE_MODE_SGMII &&
phydev->interface != PHY_INTERFACE_MODE_1000BASEKX &&
phydev->interface != PHY_INTERFACE_MODE_2500BASEX &&
phydev->interface != PHY_INTERFACE_MODE_XGMII &&
phydev->interface != PHY_INTERFACE_MODE_USXGMII &&
phydev->interface != PHY_INTERFACE_MODE_10GKR &&
phydev->interface != PHY_INTERFACE_MODE_10GBASER &&
phydev->interface != PHY_INTERFACE_MODE_XAUI &&
phydev->interface != PHY_INTERFACE_MODE_RXAUI)
return -ENODEV;
WARN(phydev->interface == PHY_INTERFACE_MODE_XGMII,
"Your devicetree is out of date, please update it. The AQR107 family doesn't support XGMII, maybe you mean USXGMII.\n");
ret = aqr107_wait_reset_complete(phydev);
if (!ret)
aqr107_chip_info(phydev);
return aqr107_set_downshift(phydev, MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT);
}
static int aqcs109_config_init(struct phy_device *phydev)
{
int ret;
/* Check that the PHY interface type is compatible */
if (phydev->interface != PHY_INTERFACE_MODE_SGMII &&
phydev->interface != PHY_INTERFACE_MODE_2500BASEX)
return -ENODEV;
ret = aqr107_wait_reset_complete(phydev);
if (!ret)
aqr107_chip_info(phydev);
/* AQCS109 belongs to a chip family partially supporting 10G and 5G.
* PMA speed ability bits are the same for all members of the family,
* AQCS109 however supports speeds up to 2.5G only.
*/
phy_set_max_speed(phydev, SPEED_2500);
return aqr107_set_downshift(phydev, MDIO_AN_VEND_PROV_DOWNSHIFT_DFLT);
}
static void aqr107_link_change_notify(struct phy_device *phydev)
{
u8 fw_major, fw_minor;
bool downshift, short_reach, afr;
int mode, val;
if (phydev->state != PHY_RUNNING || phydev->autoneg == AUTONEG_DISABLE)
return;
val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_RX_LP_STAT1);
/* call failed or link partner is no Aquantia PHY */
if (val < 0 || !(val & MDIO_AN_RX_LP_STAT1_AQ_PHY))
return;
short_reach = val & MDIO_AN_RX_LP_STAT1_SHORT_REACH;
downshift = val & MDIO_AN_RX_LP_STAT1_AQRATE_DOWNSHIFT;
val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_RX_LP_STAT4);
if (val < 0)
return;
fw_major = FIELD_GET(MDIO_AN_RX_LP_STAT4_FW_MAJOR, val);
fw_minor = FIELD_GET(MDIO_AN_RX_LP_STAT4_FW_MINOR, val);
val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_AN_RX_VEND_STAT3);
if (val < 0)
return;
afr = val & MDIO_AN_RX_VEND_STAT3_AFR;
phydev_dbg(phydev, "Link partner is Aquantia PHY, FW %u.%u%s%s%s\n",
fw_major, fw_minor,
short_reach ? ", short reach mode" : "",
downshift ? ", fast-retrain downshift advertised" : "",
afr ? ", fast reframe advertised" : "");
val = phy_read_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLOBAL_RSVD_STAT9);
if (val < 0)
return;
mode = FIELD_GET(VEND1_GLOBAL_RSVD_STAT9_MODE, val);
if (mode == VEND1_GLOBAL_RSVD_STAT9_1000BT2)
phydev_info(phydev, "Aquantia 1000Base-T2 mode active\n");
}
static int aqr107_wait_processor_intensive_op(struct phy_device *phydev)
{
int val, err;
/* The datasheet notes to wait at least 1ms after issuing a
* processor intensive operation before checking.
* We cannot use the 'sleep_before_read' parameter of read_poll_timeout
* because that just determines the maximum time slept, not the minimum.
*/
usleep_range(1000, 5000);
err = phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1,
VEND1_GLOBAL_GEN_STAT2, val,
!(val & VEND1_GLOBAL_GEN_STAT2_OP_IN_PROG),
AQR107_OP_IN_PROG_SLEEP,
AQR107_OP_IN_PROG_TIMEOUT, false);
if (err) {
phydev_err(phydev, "timeout: processor-intensive MDIO operation\n");
return err;
}
return 0;
}
static int aqr107_get_rate_matching(struct phy_device *phydev,
phy_interface_t iface)
{
if (iface == PHY_INTERFACE_MODE_10GBASER ||
iface == PHY_INTERFACE_MODE_2500BASEX ||
iface == PHY_INTERFACE_MODE_NA)
return RATE_MATCH_PAUSE;
return RATE_MATCH_NONE;
}
static int aqr107_suspend(struct phy_device *phydev)
{
int err;
err = phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, MDIO_CTRL1,
MDIO_CTRL1_LPOWER);
if (err)
return err;
return aqr107_wait_processor_intensive_op(phydev);
}
static int aqr107_resume(struct phy_device *phydev)
{
int err;
err = phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1, MDIO_CTRL1,
MDIO_CTRL1_LPOWER);
if (err)
return err;
return aqr107_wait_processor_intensive_op(phydev);
}
static int aqr107_probe(struct phy_device *phydev)
{
phydev->priv = devm_kzalloc(&phydev->mdio.dev,
sizeof(struct aqr107_priv), GFP_KERNEL);
if (!phydev->priv)
return -ENOMEM;
return aqr_hwmon_probe(phydev);
}
static struct phy_driver aqr_driver[] = {
{
PHY_ID_MATCH_MODEL(PHY_ID_AQ1202),
.name = "Aquantia AQ1202",
.config_aneg = aqr_config_aneg,
.config_intr = aqr_config_intr,
.handle_interrupt = aqr_handle_interrupt,
.read_status = aqr_read_status,
},
{
PHY_ID_MATCH_MODEL(PHY_ID_AQ2104),
.name = "Aquantia AQ2104",
.config_aneg = aqr_config_aneg,
.config_intr = aqr_config_intr,
.handle_interrupt = aqr_handle_interrupt,
.read_status = aqr_read_status,
},
{
PHY_ID_MATCH_MODEL(PHY_ID_AQR105),
.name = "Aquantia AQR105",
.config_aneg = aqr_config_aneg,
.config_intr = aqr_config_intr,
.handle_interrupt = aqr_handle_interrupt,
.read_status = aqr_read_status,
.suspend = aqr107_suspend,
.resume = aqr107_resume,
},
{
PHY_ID_MATCH_MODEL(PHY_ID_AQR106),
.name = "Aquantia AQR106",
.config_aneg = aqr_config_aneg,
.config_intr = aqr_config_intr,
.handle_interrupt = aqr_handle_interrupt,
.read_status = aqr_read_status,
},
{
PHY_ID_MATCH_MODEL(PHY_ID_AQR107),
.name = "Aquantia AQR107",
.probe = aqr107_probe,
.get_rate_matching = aqr107_get_rate_matching,
.config_init = aqr107_config_init,
.config_aneg = aqr_config_aneg,
.config_intr = aqr_config_intr,
.handle_interrupt = aqr_handle_interrupt,
.read_status = aqr107_read_status,
.get_tunable = aqr107_get_tunable,
.set_tunable = aqr107_set_tunable,
.suspend = aqr107_suspend,
.resume = aqr107_resume,
.get_sset_count = aqr107_get_sset_count,
.get_strings = aqr107_get_strings,
.get_stats = aqr107_get_stats,
.link_change_notify = aqr107_link_change_notify,
},
{
PHY_ID_MATCH_MODEL(PHY_ID_AQCS109),
.name = "Aquantia AQCS109",
.probe = aqr107_probe,
.get_rate_matching = aqr107_get_rate_matching,
.config_init = aqcs109_config_init,
.config_aneg = aqr_config_aneg,
.config_intr = aqr_config_intr,
.handle_interrupt = aqr_handle_interrupt,
.read_status = aqr107_read_status,
.get_tunable = aqr107_get_tunable,
.set_tunable = aqr107_set_tunable,
.suspend = aqr107_suspend,
.resume = aqr107_resume,
.get_sset_count = aqr107_get_sset_count,
.get_strings = aqr107_get_strings,
.get_stats = aqr107_get_stats,
.link_change_notify = aqr107_link_change_notify,
},
{
PHY_ID_MATCH_MODEL(PHY_ID_AQR405),
.name = "Aquantia AQR405",
.config_aneg = aqr_config_aneg,
.config_intr = aqr_config_intr,
.handle_interrupt = aqr_handle_interrupt,
.read_status = aqr_read_status,
},
{
PHY_ID_MATCH_MODEL(PHY_ID_AQR112),
.name = "Aquantia AQR112",
.probe = aqr107_probe,
.config_aneg = aqr_config_aneg,
.config_intr = aqr_config_intr,
.handle_interrupt = aqr_handle_interrupt,
.get_tunable = aqr107_get_tunable,
.set_tunable = aqr107_set_tunable,
.suspend = aqr107_suspend,
.resume = aqr107_resume,
.read_status = aqr107_read_status,
.get_rate_matching = aqr107_get_rate_matching,
.get_sset_count = aqr107_get_sset_count,
.get_strings = aqr107_get_strings,
.get_stats = aqr107_get_stats,
.link_change_notify = aqr107_link_change_notify,
},
{
PHY_ID_MATCH_MODEL(PHY_ID_AQR412),
.name = "Aquantia AQR412",
.probe = aqr107_probe,
.config_aneg = aqr_config_aneg,
.config_intr = aqr_config_intr,
.handle_interrupt = aqr_handle_interrupt,
.get_tunable = aqr107_get_tunable,
.set_tunable = aqr107_set_tunable,
.suspend = aqr107_suspend,
.resume = aqr107_resume,
.read_status = aqr107_read_status,
.get_rate_matching = aqr107_get_rate_matching,
.get_sset_count = aqr107_get_sset_count,
.get_strings = aqr107_get_strings,
.get_stats = aqr107_get_stats,
.link_change_notify = aqr107_link_change_notify,
},
{
PHY_ID_MATCH_MODEL(PHY_ID_AQR113C),
.name = "Aquantia AQR113C",
.probe = aqr107_probe,
.get_rate_matching = aqr107_get_rate_matching,
.config_init = aqr107_config_init,
.config_aneg = aqr_config_aneg,
.config_intr = aqr_config_intr,
.handle_interrupt = aqr_handle_interrupt,
.read_status = aqr107_read_status,
.get_tunable = aqr107_get_tunable,
.set_tunable = aqr107_set_tunable,
.suspend = aqr107_suspend,
.resume = aqr107_resume,
.get_sset_count = aqr107_get_sset_count,
.get_strings = aqr107_get_strings,
.get_stats = aqr107_get_stats,
.link_change_notify = aqr107_link_change_notify,
},
};
module_phy_driver(aqr_driver);
static struct mdio_device_id __maybe_unused aqr_tbl[] = {
{ PHY_ID_MATCH_MODEL(PHY_ID_AQ1202) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQ2104) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR105) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR106) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR107) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQCS109) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR405) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR112) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR412) },
{ PHY_ID_MATCH_MODEL(PHY_ID_AQR113C) },
{ }
};
MODULE_DEVICE_TABLE(mdio, aqr_tbl);
MODULE_DESCRIPTION("Aquantia PHY driver");
MODULE_AUTHOR("Shaohui Xie <Shaohui.Xie@freescale.com>");
MODULE_LICENSE("GPL v2");