Add driver for tja1103 driver and for future NXP C45 PHYs.
Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pi...@oss.nxp.com>
---
MAINTAINERS | 6 +
drivers/net/phy/Kconfig | 6 +
drivers/net/phy/Makefile | 1 +
drivers/net/phy/nxp-c45.c | 622 ++++++++++++++++++++++++++++++++++++++
4 files changed, 635 insertions(+)
create mode 100644 drivers/net/phy/nxp-c45.c
diff --git a/MAINTAINERS b/MAINTAINERS
index a008b70f3c16..082a5eca8913 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -12518,6 +12518,12 @@ F: drivers/nvmem/
F: include/linux/nvmem-consumer.h
F: include/linux/nvmem-provider.h
+NXP C45 PHY DRIVER
+M: Radu Pirea <radu-nicolae.pi...@oss.nxp.com>
+L: net...@vger.kernel.org
+S: Maintained
+F: drivers/net/phy/nxp-c45.c
+
NXP FSPI DRIVER
M: Ashish Kumar <ashish.ku...@nxp.com>
R: Yogesh Gaur <yogeshgaur...@gmail.com>
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
index 698bea312adc..fd2da80b5339 100644
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -228,6 +228,12 @@ config NATIONAL_PHY
help
Currently supports the DP83865 PHY.
+config NXP_C45_PHY
+ tristate "NXP C45 PHYs"
+ help
+ Enable support for NXP C45 PHYs.
+ Currently supports only the TJA1103 PHY.
+
config NXP_TJA11XX_PHY
tristate "NXP TJA11xx PHYs support"
depends on HWMON
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index a13e402074cf..a18f095748b5 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -70,6 +70,7 @@ obj-$(CONFIG_MICROCHIP_PHY) += microchip.o
obj-$(CONFIG_MICROCHIP_T1_PHY) += microchip_t1.o
obj-$(CONFIG_MICROSEMI_PHY) += mscc/
obj-$(CONFIG_NATIONAL_PHY) += national.o
+obj-$(CONFIG_NXP_C45_PHY) += nxp-c45.o
obj-$(CONFIG_NXP_TJA11XX_PHY) += nxp-tja11xx.o
obj-$(CONFIG_QSEMI_PHY) += qsemi.o
obj-$(CONFIG_REALTEK_PHY) += realtek.o
diff --git a/drivers/net/phy/nxp-c45.c b/drivers/net/phy/nxp-c45.c
new file mode 100644
index 000000000000..2961799f7d05
--- /dev/null
+++ b/drivers/net/phy/nxp-c45.c
@@ -0,0 +1,622 @@
+// SPDX-License-Identifier: GPL-2.0
+/* NXP C45 PHY driver
+ * Copyright (C) 2021 NXP
+ * Copyright (C) 2021 Radu Pirea <radu-nicolae.pi...@oss.nxp.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/ethtool.h>
+#include <linux/ethtool_netlink.h>
+#include <linux/kernel.h>
+#include <linux/mii.h>
+#include <linux/module.h>
+#include <linux/phy.h>
+#include <linux/processor.h>
+#include <linux/property.h>
+
+#define PHY_ID_BASE_T1 0x001BB010
+
+#define B100T1_PMAPMD_CTL 0x0834
+#define B100T1_PMAPMD_CONFIG_EN BIT(15)
+#define B100T1_PMAPMD_MASTER BIT(14)
+#define MASTER_MODE (B100T1_PMAPMD_CONFIG_EN |
B100T1_PMAPMD_MASTER)
+#define SLAVE_MODE (B100T1_PMAPMD_CONFIG_EN)
+
+#define DEVICE_CONTROL 0x0040
+#define DEVICE_CONTROL_RESET BIT(15)
+#define DEVICE_CONTROL_CONFIG_GLOBAL_EN BIT(14)
+#define DEVICE_CONTROL_CONFIG_ALL_EN BIT(13)
+#define RESET_POLL_NS (250 * NSEC_PER_MSEC)
+
+#define PHY_CONTROL 0x8100
+#define PHY_CONFIG_EN BIT(14)
+#define PHY_START_OP BIT(0)
+
+#define PHY_CONFIG 0x8108
+#define PHY_CONFIG_AUTO BIT(0)
+
+#define SIGNAL_QUALITY 0x8320
+#define SQI_VALID BIT(14)
+#define SQI_MASK GENMASK(2, 0)
+#define MAX_SQI SQI_MASK
+
+#define CABLE_TEST 0x8330
+#define CABLE_TEST_ENABLE BIT(15)
+#define CABLE_TEST_START BIT(14)
+#define CABLE_TEST_VALID BIT(13)
+#define CABLE_TEST_OK 0x00
+#define CABLE_TEST_SHORTED 0x01
+#define CABLE_TEST_OPEN 0x02
+#define CABLE_TEST_UNKNOWN 0x07
+
+#define PORT_CONTROL 0x8040
+#define PORT_CONTROL_EN BIT(14)
+
+#define PORT_INFRA_CONTROL 0xAC00
+#define PORT_INFRA_CONTROL_EN BIT(14)
+
+#define VND1_RXID 0xAFCC
+#define VND1_TXID 0xAFCD
+#define ID_ENABLE BIT(15)
+
+#define ABILITIES 0xAFC4
+#define RGMII_ID_ABILITY BIT(15)
+#define RGMII_ABILITY BIT(14)
+#define RMII_ABILITY BIT(10)
+#define REVMII_ABILITY BIT(9)
+#define MII_ABILITY BIT(8)
+#define SGMII_ABILITY BIT(0)
+
+#define MII_BASIC_CONFIG 0xAFC6
+#define MII_BASIC_CONFIG_REV BIT(8)
+#define MII_BASIC_CONFIG_SGMII 0x9
+#define MII_BASIC_CONFIG_RGMII 0x7
+#define MII_BASIC_CONFIG_RMII 0x5
+#define MII_BASIC_CONFIG_MII 0x4
+
+#define SYMBOL_ERROR_COUNTER 0x8350
+#define LINK_DROP_COUNTER 0x8352
+#define LINK_LOSSES_AND_FAILURES 0x8353
+#define R_GOOD_FRAME_CNT 0xA950
+#define R_BAD_FRAME_CNT 0xA952
+#define R_RXER_FRAME_CNT 0xA954
+#define RX_PREAMBLE_COUNT 0xAFCE
+#define TX_PREAMBLE_COUNT 0xAFCF
+#define RX_IPG_LENGTH 0xAFD0
+#define TX_IPG_LENGTH 0xAFD1
+#define COUNTERS_EN BIT(15)
+
+#define CLK_25MHZ_PS_PERIOD 40000UL
+#define PS_PER_DEGREE (CLK_25MHZ_PS_PERIOD / 360)
+#define MIN_ID_PS 8222U
+#define MAX_ID_PS 11300U
+
+struct nxp_c45_phy {
+ u32 tx_delay;
+ u32 rx_delay;
+};
+
+struct nxp_c45_phy_stats {
+ const char *name;
+ u8 mmd;
+ u16 reg;
+ u8 off;
+ u16 mask;
+};
+
+static const struct nxp_c45_phy_stats nxp_c45_hw_stats[] = {
+ { "phy_symbol_error_cnt", MDIO_MMD_VEND1, SYMBOL_ERROR_COUNTER, 0,
GENMASK(15, 0) },
+ { "phy_link_status_drop_cnt", MDIO_MMD_VEND1, LINK_DROP_COUNTER, 8,
GENMASK(13, 8) },
+ { "phy_link_availability_drop_cnt", MDIO_MMD_VEND1, LINK_DROP_COUNTER,
0, GENMASK(5, 0) },
+ { "phy_link_loss_cnt", MDIO_MMD_VEND1, LINK_LOSSES_AND_FAILURES, 10,
GENMASK(15, 10) },
+ { "phy_link_failure_cnt", MDIO_MMD_VEND1, LINK_LOSSES_AND_FAILURES, 0,
GENMASK(9, 0) },
+ { "r_good_frame_cnt", MDIO_MMD_VEND1, R_GOOD_FRAME_CNT, 0, GENMASK(15,
0) },
+ { "r_bad_frame_cnt", MDIO_MMD_VEND1, R_BAD_FRAME_CNT, 0, GENMASK(15, 0)
},
+ { "r_rxer_frame_cnt", MDIO_MMD_VEND1, R_RXER_FRAME_CNT, 0, GENMASK(15,
0) },
+ { "rx_preamble_count", MDIO_MMD_VEND1, RX_PREAMBLE_COUNT, 0, GENMASK(5,
0) },
+ { "tx_preamble_count", MDIO_MMD_VEND1, TX_PREAMBLE_COUNT, 0, GENMASK(5,
0) },
+ { "rx_ipg_length", MDIO_MMD_VEND1, RX_IPG_LENGTH, 0, GENMASK(8, 0) },
+ { "tx_ipg_length", MDIO_MMD_VEND1, TX_IPG_LENGTH, 0, GENMASK(8, 0) },
+};
+
+static int nxp_c45_get_sset_count(struct phy_device *phydev)
+{
+ return ARRAY_SIZE(nxp_c45_hw_stats);
+}
+
+static void nxp_c45_get_strings(struct phy_device *phydev, u8 *data)
+{
+ size_t i;
+
+ for (i = 0; i < ARRAY_SIZE(nxp_c45_hw_stats); i++) {
+ strncpy(data + i * ETH_GSTRING_LEN,
+ nxp_c45_hw_stats[i].name, ETH_GSTRING_LEN);
+ }
+}
+
+static void nxp_c45_get_stats(struct phy_device *phydev,
+ struct ethtool_stats *stats, u64 *data)
+{
+ size_t i;
+ int ret;
+
+ for (i = 0; i < ARRAY_SIZE(nxp_c45_hw_stats); i++) {
+ ret = phy_read_mmd(phydev, nxp_c45_hw_stats[i].mmd,
nxp_c45_hw_stats[i].reg);
+ if (ret < 0) {
+ data[i] = U64_MAX;
+ } else {
+ data[i] = ret & nxp_c45_hw_stats[i].mask;
+ data[i] >>= nxp_c45_hw_stats[i].off;
+ }
+ }
+}
+
+static int nxp_c45_config_enable(struct phy_device *phydev)
+{
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, DEVICE_CONTROL,
DEVICE_CONTROL_CONFIG_GLOBAL_EN |
+ DEVICE_CONTROL_CONFIG_ALL_EN);
+ usleep_range(400, 450);
+
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, PORT_CONTROL, PORT_CONTROL_EN);
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, PHY_CONTROL, PHY_CONFIG_EN);
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, PORT_INFRA_CONTROL,
PORT_INFRA_CONTROL_EN);
+
+ return 0;
+}
+
+static int nxp_c45_start_op(struct phy_device *phydev)
+{
+ int reg;
+
+ reg = phy_read_mmd(phydev, MDIO_MMD_VEND1, PHY_CONTROL);
+ reg |= PHY_START_OP;
+
+ return phy_write_mmd(phydev, MDIO_MMD_VEND1, PHY_CONTROL, reg);
+}
+
+static bool nxp_c45_can_sleep(struct phy_device *phydev)
+{
+ int reg;
+
+ reg = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_STAT1);
+ if (reg < 0)
+ return false;
+
+ return !!(reg & MDIO_STAT1_LPOWERABLE);
+}
+
+static int nxp_c45_resume(struct phy_device *phydev)
+{
+ int reg;
+
+ if (!nxp_c45_can_sleep(phydev))
+ return -EOPNOTSUPP;
+
+ reg = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1);
+ reg &= ~MDIO_CTRL1_LPOWER;
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1, reg);
+
+ return 0;
+}
+
+static int nxp_c45_suspend(struct phy_device *phydev)
+{
+ int reg;
+
+ if (!nxp_c45_can_sleep(phydev))
+ return -EOPNOTSUPP;
+
+ reg = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1);
+ reg |= MDIO_CTRL1_LPOWER;
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, MDIO_CTRL1, reg);
+
+ return 0;
+}
+
+static int nxp_c45_reset_done(struct phy_device *phydev)
+{
+ return !(phy_read_mmd(phydev, MDIO_MMD_VEND1, DEVICE_CONTROL) &
DEVICE_CONTROL_RESET);
+}
+
+static int nxp_c45_reset_done_or_timeout(struct phy_device *phydev,
+ ktime_t timeout)
+{
+ ktime_t cur = ktime_get();
+
+ return nxp_c45_reset_done(phydev) || ktime_after(cur, timeout);
+}
+
+static int nxp_c45_soft_reset(struct phy_device *phydev)
+{
+ ktime_t timeout;
+ int ret;
+
+ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, DEVICE_CONTROL,
DEVICE_CONTROL_RESET);
+ if (ret)
+ return ret;
+
+ timeout = ktime_add_ns(ktime_get(), RESET_POLL_NS);
+ spin_until_cond(nxp_c45_reset_done_or_timeout(phydev, timeout));
+ if (!nxp_c45_reset_done(phydev)) {
+ phydev_err(phydev, "reset fail\n");
+ return -EIO;
+ }
+ return 0;
+}
+
+static int nxp_c45_cable_test_start(struct phy_device *phydev)
+{
+ return phy_write_mmd(phydev, MDIO_MMD_VEND1, CABLE_TEST,
+ CABLE_TEST_ENABLE | CABLE_TEST_START);
+}
+
+static int nxp_c45_cable_test_get_status(struct phy_device *phydev,
+ bool *finished)
+{
+ int ret;
+ u8 cable_test_result;
+
+ ret = phy_read_mmd(phydev, MDIO_MMD_VEND1, CABLE_TEST);
+ if (!(ret & CABLE_TEST_VALID)) {
+ *finished = false;
+ return 0;
+ }
+
+ *finished = true;
+ cable_test_result = ret & GENMASK(2, 0);
+
+ switch (cable_test_result) {
+ case CABLE_TEST_OK:
+ ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_A,
+ ETHTOOL_A_CABLE_RESULT_CODE_OK);
+ break;
+ case CABLE_TEST_SHORTED:
+ ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_A,
+ ETHTOOL_A_CABLE_RESULT_CODE_SAME_SHORT);
+ break;
+ case CABLE_TEST_OPEN:
+ ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_A,
+ ETHTOOL_A_CABLE_RESULT_CODE_OPEN);
+ break;
+ default:
+ ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_A,
+ ETHTOOL_A_CABLE_RESULT_CODE_UNSPEC);
+ }
+
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, CABLE_TEST, 0);
+
+ return nxp_c45_start_op(phydev);
+}
+
+static int nxp_c45_setup_master_slave(struct phy_device *phydev)
+{
+ switch (phydev->master_slave_set) {
+ case MASTER_SLAVE_CFG_MASTER_FORCE:
+ case MASTER_SLAVE_CFG_MASTER_PREFERRED:
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, B100T1_PMAPMD_CTL,
MASTER_MODE);
+ break;
+ case MASTER_SLAVE_CFG_SLAVE_PREFERRED:
+ case MASTER_SLAVE_CFG_SLAVE_FORCE:
+ phy_write_mmd(phydev, MDIO_MMD_PMAPMD, B100T1_PMAPMD_CTL,
SLAVE_MODE);
+ break;
+ case MASTER_SLAVE_CFG_UNKNOWN:
+ case MASTER_SLAVE_CFG_UNSUPPORTED:
+ return 0;
+ default:
+ phydev_warn(phydev, "Unsupported Master/Slave mode\n");
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int nxp_c45_read_master_slave(struct phy_device *phydev)
+{
+ int reg;
+
+ phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
+ phydev->master_slave_state = MASTER_SLAVE_STATE_UNKNOWN;
+
+ reg = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, B100T1_PMAPMD_CTL);
+ if (reg < 0)
+ return reg;
+
+ if (reg & B100T1_PMAPMD_MASTER) {
+ phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_FORCE;
+ phydev->master_slave_state = MASTER_SLAVE_STATE_MASTER;
+ } else {
+ phydev->master_slave_get = MASTER_SLAVE_CFG_SLAVE_FORCE;
+ phydev->master_slave_state = MASTER_SLAVE_STATE_SLAVE;
+ }
+
+ return 0;
+}
+
+static int nxp_c45_config_aneg(struct phy_device *phydev)
+{
+ return nxp_c45_setup_master_slave(phydev);
+}
+
+static int nxp_c45_read_status(struct phy_device *phydev)
+{
+ int ret;
+
+ ret = genphy_c45_read_status(phydev);
+ if (ret)
+ return ret;
+
+ ret = nxp_c45_read_master_slave(phydev);
+ if (ret)
+ return ret;
+
+ return 0;
+}
+
+static int nxp_c45_set_loopback(struct phy_device *phydev, bool enable)
+{
+ int reg;
+
+ reg = phy_read_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1);
+ if (reg < 0)
+ return reg;
+
+ if (enable)
+ reg |= MDIO_PCS_CTRL1_LOOPBACK;
+ else
+ reg &= ~MDIO_PCS_CTRL1_LOOPBACK;
+
+ phy_write_mmd(phydev, MDIO_MMD_PCS, MDIO_CTRL1, reg);
+
+ phydev->loopback_enabled = enable;
+
+ phydev_dbg(phydev, "Loopback %s\n", enable ? "enabled" : "disabled");
+
+ return 0;
+}
+
+static int nxp_c45_get_sqi(struct phy_device *phydev)
+{
+ int reg;
+
+ reg = phy_read_mmd(phydev, MDIO_MMD_VEND1, SIGNAL_QUALITY);
+ if (!(reg & SQI_VALID))
+ return -EINVAL;
+
+ reg &= SQI_MASK;
+
+ return reg;
+}
+
+static int nxp_c45_get_sqi_max(struct phy_device *phydev)
+{
+ return MAX_SQI;
+}
+
+static int nxp_c45_check_delay(struct phy_device *phydev, u32 delay)
+{
+ if (delay < MIN_ID_PS) {
+ phydev_err(phydev, "delay value smaller than %u\n", MIN_ID_PS);
+ return -EINVAL;
+ }
+
+ if (delay > MAX_ID_PS) {
+ phydev_err(phydev, "delay value higher than %u\n", MAX_ID_PS);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static u64 nxp_c45_get_phase_shift(u64 phase_offset_raw)
+{
+ /* The delay in degree phase is 73.8 + phase_offset_raw * 0.9.
+ * To avoid floating point operations we'll multiply by 10
+ * and get 1 decimal point precision.
+ */
+ phase_offset_raw *= 10;
+ return (phase_offset_raw - 738) / 9;
+}
+
+static void nxp_c45_set_delays(struct phy_device *phydev)
+{
+ struct nxp_c45_phy *priv = phydev->priv;
+ u64 tx_delay = priv->tx_delay;
+ u64 rx_delay = priv->rx_delay;
+ u64 degree;
+
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
+ degree = tx_delay / PS_PER_DEGREE;
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, VND1_TXID,
+ ID_ENABLE | nxp_c45_get_phase_shift(degree));
+ }
+
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID) {
+ degree = rx_delay / PS_PER_DEGREE;
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, VND1_RXID,
+ ID_ENABLE | nxp_c45_get_phase_shift(degree));
+ }
+}
+
+static int nxp_c45_get_delays(struct phy_device *phydev)
+{
+ struct nxp_c45_phy *priv = phydev->priv;
+ int ret;
+
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
+ ret = device_property_read_u32(&phydev->mdio.dev,
"tx-internal-delay-ps",
+ &priv->tx_delay);
+ if (ret) {
+ phydev_err(phydev, "tx-internal-delay-ps property
missing\n");
+ return ret;
+ }
+ ret = nxp_c45_check_delay(phydev, priv->tx_delay);
+ if (ret) {
+ phydev_err(phydev, "tx-internal-delay-ps invalid
value\n");
+ return ret;
+ }
+ }
+
+ if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID ||
+ phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) {
+ ret = device_property_read_u32(&phydev->mdio.dev,
"rx-internal-delay-ps",
+ &priv->rx_delay);
+ if (ret) {
+ phydev_err(phydev, "rx-internal-delay-ps property
missing\n");
+ return ret;
+ }
+ ret = nxp_c45_check_delay(phydev, priv->rx_delay);
+ if (ret) {
+ phydev_err(phydev, "rx-internal-delay-ps invalid
value\n");
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
+static int nxp_c45_set_phy_mode(struct phy_device *phydev)
+{
+ int ret;
+
+ ret = phy_read_mmd(phydev, MDIO_MMD_VEND1, ABILITIES);
+ phydev_dbg(phydev, "Clause 45 managed PHY abilities 0x%x\n", ret);
+
+ switch (phydev->interface) {
+ case PHY_INTERFACE_MODE_RGMII:
+ if (!(ret & RGMII_ABILITY)) {
+ phydev_err(phydev, "rgmii mode not supported\n");
+ return -EINVAL;
+ }
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, MII_BASIC_CONFIG,
MII_BASIC_CONFIG_RGMII);
+ break;
+ case PHY_INTERFACE_MODE_RGMII_ID:
+ case PHY_INTERFACE_MODE_RGMII_TXID:
+ case PHY_INTERFACE_MODE_RGMII_RXID:
+ if (!(ret & RGMII_ID_ABILITY)) {
+ phydev_err(phydev, "rgmii-id, rgmii-txid, rgmii-rxid
modes are not supported\n");
+ return -EINVAL;
+ }
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, MII_BASIC_CONFIG,
MII_BASIC_CONFIG_RGMII);
+ ret = nxp_c45_get_delays(phydev);
+ if (ret)
+ return ret;
+
+ nxp_c45_set_delays(phydev);
+ break;
+ case PHY_INTERFACE_MODE_MII:
+ if (!(ret & MII_ABILITY)) {
+ phydev_err(phydev, "mii mode not supported\n");
+ return -EINVAL;
+ }
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, MII_BASIC_CONFIG,
MII_BASIC_CONFIG_MII);
+ break;
+ case PHY_INTERFACE_MODE_REVMII:
+ if (!(ret & REVMII_ABILITY)) {
+ phydev_err(phydev, "rev-mii mode not supported\n");
+ return -EINVAL;
+ }
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, MII_BASIC_CONFIG,
MII_BASIC_CONFIG_MII |
+ MII_BASIC_CONFIG_REV);
+ break;
+ case PHY_INTERFACE_MODE_RMII:
+ if (!(ret & RMII_ABILITY)) {
+ phydev_err(phydev, "rmii mode not supported\n");
+ return -EINVAL;
+ }
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, MII_BASIC_CONFIG,
MII_BASIC_CONFIG_RMII);
+ break;
+ case PHY_INTERFACE_MODE_SGMII:
+ if (!(ret & SGMII_ABILITY)) {
+ phydev_err(phydev, "sgmii mode not supported\n");
+ return -EINVAL;
+ }
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, MII_BASIC_CONFIG,
MII_BASIC_CONFIG_SGMII);
+ break;
+ case PHY_INTERFACE_MODE_INTERNAL:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int nxp_c45_config_init(struct phy_device *phydev)
+{
+ int ret;
+
+ ret = nxp_c45_config_enable(phydev);
+ if (ret) {
+ phydev_err(phydev, "Failed to enable config\n");
+ return ret;
+ }
+
+ ret = phy_read_mmd(phydev, MDIO_MMD_VEND1, PHY_CONFIG);
+ ret &= ~PHY_CONFIG_AUTO;
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, PHY_CONFIG, ret);
+
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, LINK_DROP_COUNTER, COUNTERS_EN);
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, RX_PREAMBLE_COUNT, COUNTERS_EN);
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, TX_PREAMBLE_COUNT, COUNTERS_EN);
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, RX_IPG_LENGTH, COUNTERS_EN);
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, TX_IPG_LENGTH, COUNTERS_EN);
+
+ ret = nxp_c45_set_phy_mode(phydev);
+ if (ret)
+ return ret;
+
+ phydev->autoneg = AUTONEG_DISABLE;
+
+ return nxp_c45_start_op(phydev);
+}
+
+static int nxp_c45_probe(struct phy_device *phydev)
+{
+ struct nxp_c45_phy *priv;
+
+ priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ phydev->priv = priv;
+
+ return 0;
+}
+
+static struct phy_driver nxp_c45_driver[] = {
+ {
+ PHY_ID_MATCH_MODEL(PHY_ID_BASE_T1),
+ .name = "NXP C45 BASE-T1",
+ .features = PHY_BASIC_T1_FEATURES,
+ .probe = nxp_c45_probe,
+ .soft_reset = nxp_c45_soft_reset,
+ .config_aneg = nxp_c45_config_aneg,
+ .config_init = nxp_c45_config_init,
+ .read_status = nxp_c45_read_status,
+ .suspend = nxp_c45_suspend,
+ .resume = nxp_c45_resume,
+ .get_sset_count = nxp_c45_get_sset_count,
+ .get_strings = nxp_c45_get_strings,
+ .get_stats = nxp_c45_get_stats,
+ .cable_test_start = nxp_c45_cable_test_start,
+ .cable_test_get_status = nxp_c45_cable_test_get_status,
+ .set_loopback = nxp_c45_set_loopback,
+ .get_sqi = nxp_c45_get_sqi,
+ .get_sqi_max = nxp_c45_get_sqi_max,
+ },
+};
+
+module_phy_driver(nxp_c45_driver);
+
+static struct mdio_device_id __maybe_unused nxp_c45_tbl[] = {
+ { PHY_ID_MATCH_MODEL(PHY_ID_BASE_T1) }
+};
+
+MODULE_DEVICE_TABLE(mdio, nxp_c45_tbl);
+
+MODULE_AUTHOR("Radu Pirea <radu-nicolae.pi...@oss.nxp.com>");
+MODULE_DESCRIPTION("NXP C45 PHY driver");
+MODULE_LICENSE("GPL v2");
--
2.31.1
