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60ddc78d16
Add below features support for both TJA1100 and TJA1101 cards: - Add MII and RMII mode support. - Add REF_CLK input/output support for RMII mode. Signed-off-by: Wei Fang <wei.fang@nxp.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
905 lines
22 KiB
C
905 lines
22 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* NXP TJA1100 BroadRReach PHY driver
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*
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* Copyright (C) 2018 Marek Vasut <marex@denx.de>
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*/
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#include <linux/delay.h>
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#include <linux/ethtool.h>
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#include <linux/ethtool_netlink.h>
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#include <linux/kernel.h>
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#include <linux/mdio.h>
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#include <linux/mii.h>
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#include <linux/module.h>
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#include <linux/of.h>
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#include <linux/phy.h>
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#include <linux/hwmon.h>
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#include <linux/bitfield.h>
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#include <linux/of_mdio.h>
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#include <linux/of_irq.h>
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#define PHY_ID_MASK 0xfffffff0
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#define PHY_ID_TJA1100 0x0180dc40
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#define PHY_ID_TJA1101 0x0180dd00
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#define PHY_ID_TJA1102 0x0180dc80
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#define MII_ECTRL 17
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#define MII_ECTRL_LINK_CONTROL BIT(15)
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#define MII_ECTRL_POWER_MODE_MASK GENMASK(14, 11)
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#define MII_ECTRL_POWER_MODE_NO_CHANGE (0x0 << 11)
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#define MII_ECTRL_POWER_MODE_NORMAL (0x3 << 11)
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#define MII_ECTRL_POWER_MODE_STANDBY (0xc << 11)
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#define MII_ECTRL_CABLE_TEST BIT(5)
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#define MII_ECTRL_CONFIG_EN BIT(2)
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#define MII_ECTRL_WAKE_REQUEST BIT(0)
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#define MII_CFG1 18
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#define MII_CFG1_MASTER_SLAVE BIT(15)
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#define MII_CFG1_AUTO_OP BIT(14)
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#define MII_CFG1_INTERFACE_MODE_MASK GENMASK(9, 8)
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#define MII_CFG1_MII_MODE (0x0 << 8)
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#define MII_CFG1_RMII_MODE_REFCLK_IN BIT(8)
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#define MII_CFG1_RMII_MODE_REFCLK_OUT BIT(9)
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#define MII_CFG1_REVMII_MODE GENMASK(9, 8)
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#define MII_CFG1_SLEEP_CONFIRM BIT(6)
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#define MII_CFG1_LED_MODE_MASK GENMASK(5, 4)
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#define MII_CFG1_LED_MODE_LINKUP 0
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#define MII_CFG1_LED_ENABLE BIT(3)
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#define MII_CFG2 19
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#define MII_CFG2_SLEEP_REQUEST_TO GENMASK(1, 0)
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#define MII_CFG2_SLEEP_REQUEST_TO_16MS 0x3
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#define MII_INTSRC 21
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#define MII_INTSRC_LINK_FAIL BIT(10)
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#define MII_INTSRC_LINK_UP BIT(9)
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#define MII_INTSRC_MASK (MII_INTSRC_LINK_FAIL | MII_INTSRC_LINK_UP)
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#define MII_INTSRC_UV_ERR BIT(3)
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#define MII_INTSRC_TEMP_ERR BIT(1)
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#define MII_INTEN 22
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#define MII_INTEN_LINK_FAIL BIT(10)
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#define MII_INTEN_LINK_UP BIT(9)
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#define MII_INTEN_UV_ERR BIT(3)
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#define MII_INTEN_TEMP_ERR BIT(1)
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#define MII_COMMSTAT 23
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#define MII_COMMSTAT_LINK_UP BIT(15)
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#define MII_COMMSTAT_SQI_STATE GENMASK(7, 5)
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#define MII_COMMSTAT_SQI_MAX 7
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#define MII_GENSTAT 24
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#define MII_GENSTAT_PLL_LOCKED BIT(14)
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#define MII_EXTSTAT 25
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#define MII_EXTSTAT_SHORT_DETECT BIT(8)
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#define MII_EXTSTAT_OPEN_DETECT BIT(7)
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#define MII_EXTSTAT_POLARITY_DETECT BIT(6)
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#define MII_COMMCFG 27
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#define MII_COMMCFG_AUTO_OP BIT(15)
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/* Configure REF_CLK as input in RMII mode */
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#define TJA110X_RMII_MODE_REFCLK_IN BIT(0)
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struct tja11xx_priv {
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char *hwmon_name;
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struct device *hwmon_dev;
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struct phy_device *phydev;
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struct work_struct phy_register_work;
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u32 flags;
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};
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struct tja11xx_phy_stats {
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const char *string;
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u8 reg;
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u8 off;
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u16 mask;
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};
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static struct tja11xx_phy_stats tja11xx_hw_stats[] = {
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{ "phy_symbol_error_count", 20, 0, GENMASK(15, 0) },
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{ "phy_polarity_detect", 25, 6, BIT(6) },
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{ "phy_open_detect", 25, 7, BIT(7) },
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{ "phy_short_detect", 25, 8, BIT(8) },
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{ "phy_rem_rcvr_count", 26, 0, GENMASK(7, 0) },
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{ "phy_loc_rcvr_count", 26, 8, GENMASK(15, 8) },
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};
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static int tja11xx_check(struct phy_device *phydev, u8 reg, u16 mask, u16 set)
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{
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int val;
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return phy_read_poll_timeout(phydev, reg, val, (val & mask) == set,
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150, 30000, false);
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}
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static int phy_modify_check(struct phy_device *phydev, u8 reg,
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u16 mask, u16 set)
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{
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int ret;
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ret = phy_modify(phydev, reg, mask, set);
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if (ret)
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return ret;
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return tja11xx_check(phydev, reg, mask, set);
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}
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static int tja11xx_enable_reg_write(struct phy_device *phydev)
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{
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return phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_CONFIG_EN);
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}
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static int tja11xx_enable_link_control(struct phy_device *phydev)
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{
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return phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_LINK_CONTROL);
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}
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static int tja11xx_disable_link_control(struct phy_device *phydev)
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{
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return phy_clear_bits(phydev, MII_ECTRL, MII_ECTRL_LINK_CONTROL);
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}
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static int tja11xx_wakeup(struct phy_device *phydev)
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{
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int ret;
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ret = phy_read(phydev, MII_ECTRL);
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if (ret < 0)
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return ret;
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switch (ret & MII_ECTRL_POWER_MODE_MASK) {
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case MII_ECTRL_POWER_MODE_NO_CHANGE:
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break;
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case MII_ECTRL_POWER_MODE_NORMAL:
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ret = phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_WAKE_REQUEST);
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if (ret)
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return ret;
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ret = phy_clear_bits(phydev, MII_ECTRL, MII_ECTRL_WAKE_REQUEST);
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if (ret)
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return ret;
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break;
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case MII_ECTRL_POWER_MODE_STANDBY:
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ret = phy_modify_check(phydev, MII_ECTRL,
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MII_ECTRL_POWER_MODE_MASK,
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MII_ECTRL_POWER_MODE_STANDBY);
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if (ret)
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return ret;
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ret = phy_modify(phydev, MII_ECTRL, MII_ECTRL_POWER_MODE_MASK,
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MII_ECTRL_POWER_MODE_NORMAL);
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if (ret)
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return ret;
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ret = phy_modify_check(phydev, MII_GENSTAT,
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MII_GENSTAT_PLL_LOCKED,
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MII_GENSTAT_PLL_LOCKED);
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if (ret)
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return ret;
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return tja11xx_enable_link_control(phydev);
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default:
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break;
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}
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return 0;
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}
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static int tja11xx_soft_reset(struct phy_device *phydev)
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{
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int ret;
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ret = tja11xx_enable_reg_write(phydev);
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if (ret)
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return ret;
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return genphy_soft_reset(phydev);
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}
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static int tja11xx_config_aneg_cable_test(struct phy_device *phydev)
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{
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bool finished = false;
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int ret;
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if (phydev->link)
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return 0;
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if (!phydev->drv->cable_test_start ||
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!phydev->drv->cable_test_get_status)
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return 0;
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ret = ethnl_cable_test_alloc(phydev, ETHTOOL_MSG_CABLE_TEST_NTF);
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if (ret)
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return ret;
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ret = phydev->drv->cable_test_start(phydev);
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if (ret)
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return ret;
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/* According to the documentation this test takes 100 usec */
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usleep_range(100, 200);
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ret = phydev->drv->cable_test_get_status(phydev, &finished);
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if (ret)
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return ret;
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if (finished)
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ethnl_cable_test_finished(phydev);
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return 0;
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}
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static int tja11xx_config_aneg(struct phy_device *phydev)
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{
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int ret, changed = 0;
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u16 ctl = 0;
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switch (phydev->master_slave_set) {
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case MASTER_SLAVE_CFG_MASTER_FORCE:
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ctl |= MII_CFG1_MASTER_SLAVE;
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break;
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case MASTER_SLAVE_CFG_SLAVE_FORCE:
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break;
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case MASTER_SLAVE_CFG_UNKNOWN:
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case MASTER_SLAVE_CFG_UNSUPPORTED:
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goto do_test;
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default:
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phydev_warn(phydev, "Unsupported Master/Slave mode\n");
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return -ENOTSUPP;
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}
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changed = phy_modify_changed(phydev, MII_CFG1, MII_CFG1_MASTER_SLAVE, ctl);
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if (changed < 0)
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return changed;
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do_test:
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ret = tja11xx_config_aneg_cable_test(phydev);
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if (ret)
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return ret;
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return __genphy_config_aneg(phydev, changed);
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}
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static int tja11xx_get_interface_mode(struct phy_device *phydev)
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{
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struct tja11xx_priv *priv = phydev->priv;
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int mii_mode;
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switch (phydev->interface) {
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case PHY_INTERFACE_MODE_MII:
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mii_mode = MII_CFG1_MII_MODE;
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break;
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case PHY_INTERFACE_MODE_REVMII:
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mii_mode = MII_CFG1_REVMII_MODE;
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break;
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case PHY_INTERFACE_MODE_RMII:
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if (priv->flags & TJA110X_RMII_MODE_REFCLK_IN)
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mii_mode = MII_CFG1_RMII_MODE_REFCLK_IN;
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else
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mii_mode = MII_CFG1_RMII_MODE_REFCLK_OUT;
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break;
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default:
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return -EINVAL;
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}
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return mii_mode;
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}
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static int tja11xx_config_init(struct phy_device *phydev)
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{
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u16 reg_mask, reg_val;
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int ret;
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ret = tja11xx_enable_reg_write(phydev);
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if (ret)
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return ret;
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phydev->autoneg = AUTONEG_DISABLE;
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phydev->speed = SPEED_100;
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phydev->duplex = DUPLEX_FULL;
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switch (phydev->phy_id & PHY_ID_MASK) {
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case PHY_ID_TJA1100:
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reg_mask = MII_CFG1_AUTO_OP | MII_CFG1_LED_MODE_MASK |
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MII_CFG1_LED_ENABLE;
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reg_val = MII_CFG1_AUTO_OP | MII_CFG1_LED_MODE_LINKUP |
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MII_CFG1_LED_ENABLE;
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reg_mask |= MII_CFG1_INTERFACE_MODE_MASK;
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ret = tja11xx_get_interface_mode(phydev);
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if (ret < 0)
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return ret;
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reg_val |= (ret & 0xffff);
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ret = phy_modify(phydev, MII_CFG1, reg_mask, reg_val);
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if (ret)
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return ret;
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break;
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case PHY_ID_TJA1101:
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reg_mask = MII_CFG1_INTERFACE_MODE_MASK;
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ret = tja11xx_get_interface_mode(phydev);
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if (ret < 0)
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return ret;
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reg_val = ret & 0xffff;
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ret = phy_modify(phydev, MII_CFG1, reg_mask, reg_val);
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if (ret)
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return ret;
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fallthrough;
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case PHY_ID_TJA1102:
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ret = phy_set_bits(phydev, MII_COMMCFG, MII_COMMCFG_AUTO_OP);
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if (ret)
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return ret;
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break;
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default:
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return -EINVAL;
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}
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ret = phy_clear_bits(phydev, MII_CFG1, MII_CFG1_SLEEP_CONFIRM);
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if (ret)
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return ret;
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ret = phy_modify(phydev, MII_CFG2, MII_CFG2_SLEEP_REQUEST_TO,
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MII_CFG2_SLEEP_REQUEST_TO_16MS);
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if (ret)
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return ret;
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ret = tja11xx_wakeup(phydev);
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if (ret < 0)
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return ret;
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/* ACK interrupts by reading the status register */
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ret = phy_read(phydev, MII_INTSRC);
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if (ret < 0)
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return ret;
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return 0;
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}
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static int tja11xx_read_status(struct phy_device *phydev)
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{
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int ret;
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phydev->master_slave_get = MASTER_SLAVE_CFG_UNKNOWN;
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phydev->master_slave_state = MASTER_SLAVE_STATE_UNSUPPORTED;
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ret = genphy_update_link(phydev);
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if (ret)
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return ret;
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ret = phy_read(phydev, MII_CFG1);
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if (ret < 0)
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return ret;
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if (ret & MII_CFG1_MASTER_SLAVE)
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phydev->master_slave_get = MASTER_SLAVE_CFG_MASTER_FORCE;
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else
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phydev->master_slave_get = MASTER_SLAVE_CFG_SLAVE_FORCE;
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if (phydev->link) {
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ret = phy_read(phydev, MII_COMMSTAT);
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if (ret < 0)
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return ret;
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if (!(ret & MII_COMMSTAT_LINK_UP))
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phydev->link = 0;
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}
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return 0;
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}
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static int tja11xx_get_sqi(struct phy_device *phydev)
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{
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int ret;
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ret = phy_read(phydev, MII_COMMSTAT);
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if (ret < 0)
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return ret;
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return FIELD_GET(MII_COMMSTAT_SQI_STATE, ret);
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}
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static int tja11xx_get_sqi_max(struct phy_device *phydev)
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{
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return MII_COMMSTAT_SQI_MAX;
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}
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static int tja11xx_get_sset_count(struct phy_device *phydev)
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{
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return ARRAY_SIZE(tja11xx_hw_stats);
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}
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static void tja11xx_get_strings(struct phy_device *phydev, u8 *data)
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{
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int i;
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for (i = 0; i < ARRAY_SIZE(tja11xx_hw_stats); i++) {
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strncpy(data + i * ETH_GSTRING_LEN,
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tja11xx_hw_stats[i].string, ETH_GSTRING_LEN);
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}
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}
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static void tja11xx_get_stats(struct phy_device *phydev,
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struct ethtool_stats *stats, u64 *data)
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{
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int i, ret;
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for (i = 0; i < ARRAY_SIZE(tja11xx_hw_stats); i++) {
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ret = phy_read(phydev, tja11xx_hw_stats[i].reg);
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if (ret < 0)
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data[i] = U64_MAX;
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else {
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data[i] = ret & tja11xx_hw_stats[i].mask;
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data[i] >>= tja11xx_hw_stats[i].off;
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}
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}
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}
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static int tja11xx_hwmon_read(struct device *dev,
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enum hwmon_sensor_types type,
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u32 attr, int channel, long *value)
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{
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struct phy_device *phydev = dev_get_drvdata(dev);
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int ret;
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if (type == hwmon_in && attr == hwmon_in_lcrit_alarm) {
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ret = phy_read(phydev, MII_INTSRC);
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if (ret < 0)
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return ret;
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*value = !!(ret & MII_INTSRC_TEMP_ERR);
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return 0;
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}
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if (type == hwmon_temp && attr == hwmon_temp_crit_alarm) {
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ret = phy_read(phydev, MII_INTSRC);
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if (ret < 0)
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return ret;
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*value = !!(ret & MII_INTSRC_UV_ERR);
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return 0;
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}
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return -EOPNOTSUPP;
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}
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static umode_t tja11xx_hwmon_is_visible(const void *data,
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enum hwmon_sensor_types type,
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u32 attr, int channel)
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{
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if (type == hwmon_in && attr == hwmon_in_lcrit_alarm)
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return 0444;
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if (type == hwmon_temp && attr == hwmon_temp_crit_alarm)
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return 0444;
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return 0;
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}
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static const struct hwmon_channel_info *tja11xx_hwmon_info[] = {
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HWMON_CHANNEL_INFO(in, HWMON_I_LCRIT_ALARM),
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HWMON_CHANNEL_INFO(temp, HWMON_T_CRIT_ALARM),
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NULL
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};
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static const struct hwmon_ops tja11xx_hwmon_hwmon_ops = {
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.is_visible = tja11xx_hwmon_is_visible,
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.read = tja11xx_hwmon_read,
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};
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static const struct hwmon_chip_info tja11xx_hwmon_chip_info = {
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.ops = &tja11xx_hwmon_hwmon_ops,
|
|
.info = tja11xx_hwmon_info,
|
|
};
|
|
|
|
static int tja11xx_hwmon_register(struct phy_device *phydev,
|
|
struct tja11xx_priv *priv)
|
|
{
|
|
struct device *dev = &phydev->mdio.dev;
|
|
|
|
priv->hwmon_name = devm_hwmon_sanitize_name(dev, dev_name(dev));
|
|
if (IS_ERR(priv->hwmon_name))
|
|
return PTR_ERR(priv->hwmon_name);
|
|
|
|
priv->hwmon_dev =
|
|
devm_hwmon_device_register_with_info(dev, priv->hwmon_name,
|
|
phydev,
|
|
&tja11xx_hwmon_chip_info,
|
|
NULL);
|
|
|
|
return PTR_ERR_OR_ZERO(priv->hwmon_dev);
|
|
}
|
|
|
|
static int tja11xx_parse_dt(struct phy_device *phydev)
|
|
{
|
|
struct device_node *node = phydev->mdio.dev.of_node;
|
|
struct tja11xx_priv *priv = phydev->priv;
|
|
|
|
if (!IS_ENABLED(CONFIG_OF_MDIO))
|
|
return 0;
|
|
|
|
if (of_property_read_bool(node, "nxp,rmii-refclk-in"))
|
|
priv->flags |= TJA110X_RMII_MODE_REFCLK_IN;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tja11xx_probe(struct phy_device *phydev)
|
|
{
|
|
struct device *dev = &phydev->mdio.dev;
|
|
struct tja11xx_priv *priv;
|
|
int ret;
|
|
|
|
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
priv->phydev = phydev;
|
|
phydev->priv = priv;
|
|
|
|
ret = tja11xx_parse_dt(phydev);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return tja11xx_hwmon_register(phydev, priv);
|
|
}
|
|
|
|
static void tja1102_p1_register(struct work_struct *work)
|
|
{
|
|
struct tja11xx_priv *priv = container_of(work, struct tja11xx_priv,
|
|
phy_register_work);
|
|
struct phy_device *phydev_phy0 = priv->phydev;
|
|
struct mii_bus *bus = phydev_phy0->mdio.bus;
|
|
struct device *dev = &phydev_phy0->mdio.dev;
|
|
struct device_node *np = dev->of_node;
|
|
struct device_node *child;
|
|
int ret;
|
|
|
|
for_each_available_child_of_node(np, child) {
|
|
struct phy_device *phy;
|
|
int addr;
|
|
|
|
addr = of_mdio_parse_addr(dev, child);
|
|
if (addr < 0) {
|
|
dev_err(dev, "Can't parse addr\n");
|
|
continue;
|
|
} else if (addr != phydev_phy0->mdio.addr + 1) {
|
|
/* Currently we care only about double PHY chip TJA1102.
|
|
* If some day NXP will decide to bring chips with more
|
|
* PHYs, this logic should be reworked.
|
|
*/
|
|
dev_err(dev, "Unexpected address. Should be: %i\n",
|
|
phydev_phy0->mdio.addr + 1);
|
|
continue;
|
|
}
|
|
|
|
if (mdiobus_is_registered_device(bus, addr)) {
|
|
dev_err(dev, "device is already registered\n");
|
|
continue;
|
|
}
|
|
|
|
/* Real PHY ID of Port 1 is 0 */
|
|
phy = phy_device_create(bus, addr, PHY_ID_TJA1102, false, NULL);
|
|
if (IS_ERR(phy)) {
|
|
dev_err(dev, "Can't create PHY device for Port 1: %i\n",
|
|
addr);
|
|
continue;
|
|
}
|
|
|
|
/* Overwrite parent device. phy_device_create() set parent to
|
|
* the mii_bus->dev, which is not correct in case.
|
|
*/
|
|
phy->mdio.dev.parent = dev;
|
|
|
|
ret = of_mdiobus_phy_device_register(bus, phy, child, addr);
|
|
if (ret) {
|
|
/* All resources needed for Port 1 should be already
|
|
* available for Port 0. Both ports use the same
|
|
* interrupt line, so -EPROBE_DEFER would make no sense
|
|
* here.
|
|
*/
|
|
dev_err(dev, "Can't register Port 1. Unexpected error: %i\n",
|
|
ret);
|
|
phy_device_free(phy);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int tja1102_p0_probe(struct phy_device *phydev)
|
|
{
|
|
struct device *dev = &phydev->mdio.dev;
|
|
struct tja11xx_priv *priv;
|
|
int ret;
|
|
|
|
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
|
|
if (!priv)
|
|
return -ENOMEM;
|
|
|
|
priv->phydev = phydev;
|
|
INIT_WORK(&priv->phy_register_work, tja1102_p1_register);
|
|
|
|
ret = tja11xx_hwmon_register(phydev, priv);
|
|
if (ret)
|
|
return ret;
|
|
|
|
schedule_work(&priv->phy_register_work);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tja1102_match_phy_device(struct phy_device *phydev, bool port0)
|
|
{
|
|
int ret;
|
|
|
|
if ((phydev->phy_id & PHY_ID_MASK) != PHY_ID_TJA1102)
|
|
return 0;
|
|
|
|
ret = phy_read(phydev, MII_PHYSID2);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
/* TJA1102 Port 1 has phyid 0 and doesn't support temperature
|
|
* and undervoltage alarms.
|
|
*/
|
|
if (port0)
|
|
return ret ? 1 : 0;
|
|
|
|
return !ret;
|
|
}
|
|
|
|
static int tja1102_p0_match_phy_device(struct phy_device *phydev)
|
|
{
|
|
return tja1102_match_phy_device(phydev, true);
|
|
}
|
|
|
|
static int tja1102_p1_match_phy_device(struct phy_device *phydev)
|
|
{
|
|
return tja1102_match_phy_device(phydev, false);
|
|
}
|
|
|
|
static int tja11xx_ack_interrupt(struct phy_device *phydev)
|
|
{
|
|
int ret;
|
|
|
|
ret = phy_read(phydev, MII_INTSRC);
|
|
|
|
return (ret < 0) ? ret : 0;
|
|
}
|
|
|
|
static int tja11xx_config_intr(struct phy_device *phydev)
|
|
{
|
|
int value = 0;
|
|
int err;
|
|
|
|
if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
|
|
err = tja11xx_ack_interrupt(phydev);
|
|
if (err)
|
|
return err;
|
|
|
|
value = MII_INTEN_LINK_FAIL | MII_INTEN_LINK_UP |
|
|
MII_INTEN_UV_ERR | MII_INTEN_TEMP_ERR;
|
|
err = phy_write(phydev, MII_INTEN, value);
|
|
} else {
|
|
err = phy_write(phydev, MII_INTEN, value);
|
|
if (err)
|
|
return err;
|
|
|
|
err = tja11xx_ack_interrupt(phydev);
|
|
}
|
|
|
|
return err;
|
|
}
|
|
|
|
static irqreturn_t tja11xx_handle_interrupt(struct phy_device *phydev)
|
|
{
|
|
struct device *dev = &phydev->mdio.dev;
|
|
int irq_status;
|
|
|
|
irq_status = phy_read(phydev, MII_INTSRC);
|
|
if (irq_status < 0) {
|
|
phy_error(phydev);
|
|
return IRQ_NONE;
|
|
}
|
|
|
|
if (irq_status & MII_INTSRC_TEMP_ERR)
|
|
dev_warn(dev, "Overtemperature error detected (temp > 155C°).\n");
|
|
if (irq_status & MII_INTSRC_UV_ERR)
|
|
dev_warn(dev, "Undervoltage error detected.\n");
|
|
|
|
if (!(irq_status & MII_INTSRC_MASK))
|
|
return IRQ_NONE;
|
|
|
|
phy_trigger_machine(phydev);
|
|
|
|
return IRQ_HANDLED;
|
|
}
|
|
|
|
static int tja11xx_cable_test_start(struct phy_device *phydev)
|
|
{
|
|
int ret;
|
|
|
|
ret = phy_clear_bits(phydev, MII_COMMCFG, MII_COMMCFG_AUTO_OP);
|
|
if (ret)
|
|
return ret;
|
|
|
|
ret = tja11xx_wakeup(phydev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ret = tja11xx_disable_link_control(phydev);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
return phy_set_bits(phydev, MII_ECTRL, MII_ECTRL_CABLE_TEST);
|
|
}
|
|
|
|
/*
|
|
* | BI_DA+ | BI_DA- | Result
|
|
* | open | open | open
|
|
* | + short to - | - short to + | short
|
|
* | short to Vdd | open | open
|
|
* | open | shot to Vdd | open
|
|
* | short to Vdd | short to Vdd | short
|
|
* | shot to GND | open | open
|
|
* | open | shot to GND | open
|
|
* | short to GND | shot to GND | short
|
|
* | connected to active link partner (master) | shot and open
|
|
*/
|
|
static int tja11xx_cable_test_report_trans(u32 result)
|
|
{
|
|
u32 mask = MII_EXTSTAT_SHORT_DETECT | MII_EXTSTAT_OPEN_DETECT;
|
|
|
|
if ((result & mask) == mask) {
|
|
/* connected to active link partner (master) */
|
|
return ETHTOOL_A_CABLE_RESULT_CODE_UNSPEC;
|
|
} else if ((result & mask) == 0) {
|
|
return ETHTOOL_A_CABLE_RESULT_CODE_OK;
|
|
} else if (result & MII_EXTSTAT_SHORT_DETECT) {
|
|
return ETHTOOL_A_CABLE_RESULT_CODE_SAME_SHORT;
|
|
} else if (result & MII_EXTSTAT_OPEN_DETECT) {
|
|
return ETHTOOL_A_CABLE_RESULT_CODE_OPEN;
|
|
} else {
|
|
return ETHTOOL_A_CABLE_RESULT_CODE_UNSPEC;
|
|
}
|
|
}
|
|
|
|
static int tja11xx_cable_test_report(struct phy_device *phydev)
|
|
{
|
|
int ret;
|
|
|
|
ret = phy_read(phydev, MII_EXTSTAT);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
ethnl_cable_test_result(phydev, ETHTOOL_A_CABLE_PAIR_A,
|
|
tja11xx_cable_test_report_trans(ret));
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int tja11xx_cable_test_get_status(struct phy_device *phydev,
|
|
bool *finished)
|
|
{
|
|
int ret;
|
|
|
|
*finished = false;
|
|
|
|
ret = phy_read(phydev, MII_ECTRL);
|
|
if (ret < 0)
|
|
return ret;
|
|
|
|
if (!(ret & MII_ECTRL_CABLE_TEST)) {
|
|
*finished = true;
|
|
|
|
ret = phy_set_bits(phydev, MII_COMMCFG, MII_COMMCFG_AUTO_OP);
|
|
if (ret)
|
|
return ret;
|
|
|
|
return tja11xx_cable_test_report(phydev);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct phy_driver tja11xx_driver[] = {
|
|
{
|
|
PHY_ID_MATCH_MODEL(PHY_ID_TJA1100),
|
|
.name = "NXP TJA1100",
|
|
.features = PHY_BASIC_T1_FEATURES,
|
|
.probe = tja11xx_probe,
|
|
.soft_reset = tja11xx_soft_reset,
|
|
.config_aneg = tja11xx_config_aneg,
|
|
.config_init = tja11xx_config_init,
|
|
.read_status = tja11xx_read_status,
|
|
.get_sqi = tja11xx_get_sqi,
|
|
.get_sqi_max = tja11xx_get_sqi_max,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
.set_loopback = genphy_loopback,
|
|
/* Statistics */
|
|
.get_sset_count = tja11xx_get_sset_count,
|
|
.get_strings = tja11xx_get_strings,
|
|
.get_stats = tja11xx_get_stats,
|
|
}, {
|
|
PHY_ID_MATCH_MODEL(PHY_ID_TJA1101),
|
|
.name = "NXP TJA1101",
|
|
.features = PHY_BASIC_T1_FEATURES,
|
|
.probe = tja11xx_probe,
|
|
.soft_reset = tja11xx_soft_reset,
|
|
.config_aneg = tja11xx_config_aneg,
|
|
.config_init = tja11xx_config_init,
|
|
.read_status = tja11xx_read_status,
|
|
.get_sqi = tja11xx_get_sqi,
|
|
.get_sqi_max = tja11xx_get_sqi_max,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
.set_loopback = genphy_loopback,
|
|
/* Statistics */
|
|
.get_sset_count = tja11xx_get_sset_count,
|
|
.get_strings = tja11xx_get_strings,
|
|
.get_stats = tja11xx_get_stats,
|
|
}, {
|
|
.name = "NXP TJA1102 Port 0",
|
|
.features = PHY_BASIC_T1_FEATURES,
|
|
.flags = PHY_POLL_CABLE_TEST,
|
|
.probe = tja1102_p0_probe,
|
|
.soft_reset = tja11xx_soft_reset,
|
|
.config_aneg = tja11xx_config_aneg,
|
|
.config_init = tja11xx_config_init,
|
|
.read_status = tja11xx_read_status,
|
|
.get_sqi = tja11xx_get_sqi,
|
|
.get_sqi_max = tja11xx_get_sqi_max,
|
|
.match_phy_device = tja1102_p0_match_phy_device,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
.set_loopback = genphy_loopback,
|
|
/* Statistics */
|
|
.get_sset_count = tja11xx_get_sset_count,
|
|
.get_strings = tja11xx_get_strings,
|
|
.get_stats = tja11xx_get_stats,
|
|
.config_intr = tja11xx_config_intr,
|
|
.handle_interrupt = tja11xx_handle_interrupt,
|
|
.cable_test_start = tja11xx_cable_test_start,
|
|
.cable_test_get_status = tja11xx_cable_test_get_status,
|
|
}, {
|
|
.name = "NXP TJA1102 Port 1",
|
|
.features = PHY_BASIC_T1_FEATURES,
|
|
.flags = PHY_POLL_CABLE_TEST,
|
|
/* currently no probe for Port 1 is need */
|
|
.soft_reset = tja11xx_soft_reset,
|
|
.config_aneg = tja11xx_config_aneg,
|
|
.config_init = tja11xx_config_init,
|
|
.read_status = tja11xx_read_status,
|
|
.get_sqi = tja11xx_get_sqi,
|
|
.get_sqi_max = tja11xx_get_sqi_max,
|
|
.match_phy_device = tja1102_p1_match_phy_device,
|
|
.suspend = genphy_suspend,
|
|
.resume = genphy_resume,
|
|
.set_loopback = genphy_loopback,
|
|
/* Statistics */
|
|
.get_sset_count = tja11xx_get_sset_count,
|
|
.get_strings = tja11xx_get_strings,
|
|
.get_stats = tja11xx_get_stats,
|
|
.config_intr = tja11xx_config_intr,
|
|
.handle_interrupt = tja11xx_handle_interrupt,
|
|
.cable_test_start = tja11xx_cable_test_start,
|
|
.cable_test_get_status = tja11xx_cable_test_get_status,
|
|
}
|
|
};
|
|
|
|
module_phy_driver(tja11xx_driver);
|
|
|
|
static struct mdio_device_id __maybe_unused tja11xx_tbl[] = {
|
|
{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1100) },
|
|
{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1101) },
|
|
{ PHY_ID_MATCH_MODEL(PHY_ID_TJA1102) },
|
|
{ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(mdio, tja11xx_tbl);
|
|
|
|
MODULE_AUTHOR("Marek Vasut <marex@denx.de>");
|
|
MODULE_DESCRIPTION("NXP TJA11xx BoardR-Reach PHY driver");
|
|
MODULE_LICENSE("GPL");
|