458 lines
11 KiB
Diff
458 lines
11 KiB
Diff
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
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index 698bea312adc..626ec44248dc 100644
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--- a/drivers/net/phy/Kconfig
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+++ b/drivers/net/phy/Kconfig
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@@ -223,6 +223,11 @@ config MICROSEMI_PHY
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help
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Currently supports VSC8514, VSC8530, VSC8531, VSC8540 and VSC8541 PHYs
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+config MOTORCOMM_PHY
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+ tristate "Motorcomm PHYs"
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+ help
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+ Supports the YT8010, YT8510, YT8511, YT8512 PHYs.
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+
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config NATIONAL_PHY
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tristate "National Semiconductor PHYs"
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help
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diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
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index a13e402074cf..c99b00bc24b5 100644
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--- a/drivers/net/phy/Makefile
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+++ b/drivers/net/phy/Makefile
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@@ -69,6 +69,7 @@ obj-$(CONFIG_MICREL_PHY) += micrel.o
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obj-$(CONFIG_MICROCHIP_PHY) += microchip.o
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obj-$(CONFIG_MICROCHIP_T1_PHY) += microchip_t1.o
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obj-$(CONFIG_MICROSEMI_PHY) += mscc/
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+obj-$(CONFIG_MOTORCOMM_PHY) += motorcomm.o
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obj-$(CONFIG_NATIONAL_PHY) += national.o
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obj-$(CONFIG_NXP_TJA11XX_PHY) += nxp-tja11xx.o
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obj-$(CONFIG_QSEMI_PHY) += qsemi.o
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diff --git a/drivers/net/phy/motorcomm.c b/drivers/net/phy/motorcomm.c
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new file mode 100644
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index 000000000000..c53b5b88b226
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--- /dev/null
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+++ b/drivers/net/phy/motorcomm.c
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@@ -0,0 +1,350 @@
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+/*
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+ * drivers/net/phy/motorcomm.c
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+ *
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+ * Driver for Motorcomm PHYs
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+ *
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+ * Author: Leilei Zhao <leilei.zhao@motorcomm.com>
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+ *
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+ * Copyright (c) 2019 Motorcomm, Inc.
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License as published by the
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+ * Free Software Foundation; either version 2 of the License, or (at your
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+ * option) any later version.
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+ *
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+ * Support : Motorcomm Phys:
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+ * Giga phys: yt8511, yt8521
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+ * 100/10 Phys : yt8512, yt8512b, yt8510
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+ * Automotive 100Mb Phys : yt8010
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+ * Automotive 100/10 hyper range Phys: yt8510
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/phy.h>
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+#include <linux/motorcomm_phy.h>
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+#include <linux/of.h>
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+#include <linux/clk.h>
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+
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+static int ytphy_read_ext(struct phy_device *phydev, u32 regnum)
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+{
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+ int ret;
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+ int val;
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+
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+ ret = phy_write(phydev, REG_DEBUG_ADDR_OFFSET, regnum);
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+ if (ret < 0)
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+ return ret;
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+
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+ val = phy_read(phydev, REG_DEBUG_DATA);
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+
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+ return val;
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+}
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+
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+static int ytphy_write_ext(struct phy_device *phydev, u32 regnum, u16 val)
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+{
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+ int ret;
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+
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+ ret = phy_write(phydev, REG_DEBUG_ADDR_OFFSET, regnum);
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+ if (ret < 0)
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+ return ret;
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+
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+ ret = phy_write(phydev, REG_DEBUG_DATA, val);
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+
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+ return ret;
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+}
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+
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+static int yt8010_config_aneg(struct phy_device *phydev)
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+{
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+ phydev->speed = SPEED_100;
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+ return 0;
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+}
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+
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+static int yt8512_clk_init(struct phy_device *phydev)
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+{
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+ int ret;
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+ int val;
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+
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+ val = ytphy_read_ext(phydev, YT8512_EXTREG_AFE_PLL);
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+ if (val < 0)
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+ return val;
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+
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+ val |= YT8512_CONFIG_PLL_REFCLK_SEL_EN;
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+
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+ ret = ytphy_write_ext(phydev, YT8512_EXTREG_AFE_PLL, val);
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+ if (ret < 0)
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+ return ret;
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+
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+ val = ytphy_read_ext(phydev, YT8512_EXTREG_EXTEND_COMBO);
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+ if (val < 0)
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+ return val;
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+
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+ val |= YT8512_CONTROL1_RMII_EN;
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+
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+ ret = ytphy_write_ext(phydev, YT8512_EXTREG_EXTEND_COMBO, val);
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+ if (ret < 0)
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+ return ret;
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+
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+ val = phy_read(phydev, MII_BMCR);
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+ if (val < 0)
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+ return val;
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+
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+ val |= YT_SOFTWARE_RESET;
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+ ret = phy_write(phydev, MII_BMCR, val);
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+
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+ return ret;
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+}
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+
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+static int yt8512_led_init(struct phy_device *phydev)
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+{
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+ int ret;
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+ int val;
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+ int mask;
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+
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+ val = ytphy_read_ext(phydev, YT8512_EXTREG_LED0);
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+ if (val < 0)
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+ return val;
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+
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+ val |= YT8512_LED0_ACT_BLK_IND;
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+
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+ mask = YT8512_LED0_DIS_LED_AN_TRY | YT8512_LED0_BT_BLK_EN |
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+ YT8512_LED0_HT_BLK_EN | YT8512_LED0_COL_BLK_EN |
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+ YT8512_LED0_BT_ON_EN;
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+ val &= ~mask;
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+
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+ ret = ytphy_write_ext(phydev, YT8512_EXTREG_LED0, val);
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+ if (ret < 0)
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+ return ret;
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+
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+ val = ytphy_read_ext(phydev, YT8512_EXTREG_LED1);
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+ if (val < 0)
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+ return val;
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+
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+ val |= YT8512_LED1_BT_ON_EN;
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+
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+ mask = YT8512_LED1_TXACT_BLK_EN | YT8512_LED1_RXACT_BLK_EN;
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+ val &= ~mask;
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+
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+ ret = ytphy_write_ext(phydev, YT8512_LED1_BT_ON_EN, val);
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+
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+ return ret;
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+}
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+
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+static int yt8512_config_init(struct phy_device *phydev)
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+{
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+ int ret;
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+ int val;
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+
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+ ret = yt8512_clk_init(phydev);
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+ if (ret < 0)
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+ return ret;
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+
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+ ret = yt8512_led_init(phydev);
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+
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+ /* disable auto sleep */
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+ val = ytphy_read_ext(phydev, YT8512_EXTREG_SLEEP_CONTROL1);
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+ if (val < 0)
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+ return val;
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+
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+ val &= (~BIT(YT8512_EN_SLEEP_SW_BIT));
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+
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+ ret = ytphy_write_ext(phydev, YT8512_EXTREG_SLEEP_CONTROL1, val);
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+ if (ret < 0)
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+ return ret;
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+
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+ return ret;
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+}
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+
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+static int yt8512_read_status(struct phy_device *phydev)
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+{
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+ int ret;
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+ int val;
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+ int speed, speed_mode, duplex;
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+
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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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+
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+ val = phy_read(phydev, REG_PHY_SPEC_STATUS);
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+ if (val < 0)
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+ return val;
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+
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+ duplex = (val & YT8512_DUPLEX) >> YT8512_DUPLEX_BIT;
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+ speed_mode = (val & YT8512_SPEED_MODE) >> YT8512_SPEED_MODE_BIT;
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+ switch (speed_mode) {
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+ case 0:
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+ speed = SPEED_10;
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+ break;
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+ case 1:
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+ speed = SPEED_100;
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+ break;
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+ case 2:
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+ case 3:
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+ default:
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+ speed = SPEED_UNKNOWN;
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+ break;
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+ }
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+
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+ phydev->speed = speed;
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+ phydev->duplex = duplex;
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+
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+ return 0;
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+}
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+
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+static int yt8521_config_init(struct phy_device *phydev)
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+{
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+ int ret;
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+ int val;
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+
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+ /* disable auto sleep */
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+ val = ytphy_read_ext(phydev, YT8521_EXTREG_SLEEP_CONTROL1);
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+ if (val < 0)
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+ return val;
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+
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+ val &= (~BIT(YT8521_EN_SLEEP_SW_BIT));
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+ ret = ytphy_write_ext(phydev, YT8521_EXTREG_SLEEP_CONTROL1, val);
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+ if (ret < 0)
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+ return ret;
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+
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+ /* switch to access UTP */
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+ ret = ytphy_write_ext(phydev, 0xa000, 0);
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+ if (ret < 0)
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+ return ret;
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+
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+ /* enable RXC clock when no wire plug */
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+ val = ytphy_read_ext(phydev, 0xc);
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+ if (val < 0)
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+ return val;
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+
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+ val &= ~(1 << 12);
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+ ret = ytphy_write_ext(phydev, 0xc, val);
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+ if (ret < 0)
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+ return ret;
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+
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+ /* output SyncE clock (125mhz) even link is down */
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+ ret = ytphy_write_ext(phydev, 0xa012, 0x38);
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+ if (ret < 0)
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+ return ret;
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+
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+ /* disable rgmii clk 2ns delay */
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+ val = ytphy_read_ext(phydev, 0xa001);
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+ if (val < 0)
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+ return val;
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+
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+ val &= ~(1 << 8);
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+ ret = ytphy_write_ext(phydev, 0xa001, val);
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+ if (ret < 0)
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+ return ret;
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+
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+ /* setup delay */
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+ val = (1 << 10) | (0xf << 4) | 5;
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+ ret = ytphy_write_ext(phydev, 0xa003, val);
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+ if (ret < 0)
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+ return ret;
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+
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+ /* LED0: Unused/Off, LED1: Link, LED2: Activity, 8Hz */
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+ ytphy_write_ext(phydev, 0xa00b, 0xe004);
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+ ytphy_write_ext(phydev, 0xa00c, 0);
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+ ytphy_write_ext(phydev, 0xa00d, 0x2600);
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+ ytphy_write_ext(phydev, 0xa00e, 0x0070);
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+ ytphy_write_ext(phydev, 0xa00f, 0x000a);
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+
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+ return 0;
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+}
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+
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+static int yt8521_ack_interrupt(struct phy_device *phydev)
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+{
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+ int val;
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+
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+ val = phy_read(phydev, REG_INT_STATUS);
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+ phydev_dbg(phydev, "intr status 0x04%x\n", val);
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+
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+ return (val < 0) ? val : 0;
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+}
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+
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+static int yt8521_config_intr(struct phy_device *phydev)
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+{
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+ int val;
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+ int err;
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+
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+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
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+ val = BIT(14) | BIT(13) | BIT(11) | BIT(10);
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+ else
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+ val = 0;
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+
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+ err = phy_write(phydev, REG_INT_MASK, val);
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+ if (err)
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+ return err;
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+ err = yt8521_ack_interrupt(phydev);
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+
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+ return err;
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+}
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+
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+static struct phy_driver ytphy_drvs[] = {
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+ {
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+ .phy_id = PHY_ID_YT8010,
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+ .name = "YT8010 Automotive Ethernet",
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+ .phy_id_mask = MOTORCOMM_PHY_ID_MASK,
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+ .features = PHY_BASIC_FEATURES,
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+ .config_aneg = yt8010_config_aneg,
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+ .read_status = genphy_read_status,
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+ }, {
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+ .phy_id = PHY_ID_YT8510,
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+ .name = "YT8510 100/10Mb Ethernet",
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+ .phy_id_mask = MOTORCOMM_PHY_ID_MASK,
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+ .features = PHY_BASIC_FEATURES,
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+ .read_status = genphy_read_status,
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+ }, {
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+ .phy_id = PHY_ID_YT8511,
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+ .name = "YT8511 Gigabit Ethernet",
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+ .phy_id_mask = MOTORCOMM_PHY_ID_MASK,
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+ .features = PHY_GBIT_FEATURES,
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+ .read_status = genphy_read_status,
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+ .suspend = genphy_suspend,
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+ .resume = genphy_resume,
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+ }, {
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+ .phy_id = PHY_ID_YT8512,
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+ .name = "YT8512 Ethernet",
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+ .phy_id_mask = MOTORCOMM_PHY_ID_MASK,
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+ .features = PHY_BASIC_FEATURES,
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+ .config_init = yt8512_config_init,
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+ .read_status = yt8512_read_status,
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+ .suspend = genphy_suspend,
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+ .resume = genphy_resume,
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+ }, {
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+ .phy_id = PHY_ID_YT8512B,
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+ .name = "YT8512B Ethernet",
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+ .phy_id_mask = MOTORCOMM_PHY_ID_MASK,
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+ .features = PHY_BASIC_FEATURES,
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+ .config_init = yt8512_config_init,
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+ .read_status = yt8512_read_status,
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+ .suspend = genphy_suspend,
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+ .resume = genphy_resume,
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+ }, {
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+ .phy_id = PHY_ID_YT8521,
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+ .name = "YT8521 Ethernet",
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+ .phy_id_mask = MOTORCOMM_PHY_ID_MASK,
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+ /* PHY_GBIT_FEATURES */
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+ .config_init = yt8521_config_init,
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+ .config_intr = yt8521_config_intr,
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+ .suspend = genphy_suspend,
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+ .resume = genphy_resume,
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+ },
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+};
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+
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+module_phy_driver(ytphy_drvs);
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+
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+MODULE_DESCRIPTION("Motorcomm PHY driver");
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+MODULE_AUTHOR("Leilei Zhao");
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+MODULE_LICENSE("GPL");
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+
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+static struct mdio_device_id __maybe_unused motorcomm_tbl[] = {
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+ { PHY_ID_YT8010, MOTORCOMM_PHY_ID_MASK },
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+ { PHY_ID_YT8510, MOTORCOMM_PHY_ID_MASK },
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+ { PHY_ID_YT8511, MOTORCOMM_PHY_ID_MASK },
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+ { PHY_ID_YT8512, MOTORCOMM_PHY_ID_MASK },
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+ { PHY_ID_YT8512B, MOTORCOMM_PHY_ID_MASK },
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+ { PHY_ID_YT8521, MOTORCOMM_PHY_ID_MASK },
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+ { }
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+};
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+
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+MODULE_DEVICE_TABLE(mdio, motorcomm_tbl);
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diff --git a/include/linux/motorcomm_phy.h b/include/linux/motorcomm_phy.h
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new file mode 100644
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index 000000000000..1e48c3671b69
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--- /dev/null
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+++ b/include/linux/motorcomm_phy.h
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@@ -0,0 +1,67 @@
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+/*
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+ * include/linux/motorcomm_phy.h
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+ *
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+ * Motorcomm PHY IDs
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+ *
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+ * This program is free software; you can redistribute it and/or modify it
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+ * under the terms of the GNU General Public License as published by the
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+ * Free Software Foundation; either version 2 of the License, or (at your
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+ * option) any later version.
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+ *
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+ */
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+
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+#ifndef _MOTORCOMM_PHY_H
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+#define _MOTORCOMM_PHY_H
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+
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+#define MOTORCOMM_PHY_ID_MASK 0x00000fff
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+
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+#define PHY_ID_YT8010 0x00000309
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+#define PHY_ID_YT8510 0x00000109
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+#define PHY_ID_YT8511 0x0000010a
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+#define PHY_ID_YT8512 0x00000118
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+#define PHY_ID_YT8512B 0x00000128
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+#define PHY_ID_YT8521 0x0000011a
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+
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+#define REG_PHY_SPEC_STATUS 0x11
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+#define REG_INT_MASK 0x12
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+#define REG_INT_STATUS 0x13
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+#define REG_DEBUG_ADDR_OFFSET 0x1e
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+#define REG_DEBUG_DATA 0x1f
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+
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+#define YT8512_EXTREG_AFE_PLL 0x50
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+#define YT8512_EXTREG_EXTEND_COMBO 0x4000
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+#define YT8512_EXTREG_LED0 0x40c0
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+#define YT8512_EXTREG_LED1 0x40c3
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+
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+#define YT8512_EXTREG_SLEEP_CONTROL1 0x2027
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+
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+#define YT_SOFTWARE_RESET 0x8000
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+
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+#define YT8512_CONFIG_PLL_REFCLK_SEL_EN 0x0040
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+#define YT8512_CONTROL1_RMII_EN 0x0001
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+#define YT8512_LED0_ACT_BLK_IND 0x1000
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+#define YT8512_LED0_DIS_LED_AN_TRY 0x0001
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+#define YT8512_LED0_BT_BLK_EN 0x0002
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+#define YT8512_LED0_HT_BLK_EN 0x0004
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+#define YT8512_LED0_COL_BLK_EN 0x0008
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+#define YT8512_LED0_BT_ON_EN 0x0010
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+#define YT8512_LED1_BT_ON_EN 0x0010
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+#define YT8512_LED1_TXACT_BLK_EN 0x0100
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+#define YT8512_LED1_RXACT_BLK_EN 0x0200
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+#define YT8512_SPEED_MODE 0xc000
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+#define YT8512_DUPLEX 0x2000
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+
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+#define YT8512_SPEED_MODE_BIT 14
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+#define YT8512_DUPLEX_BIT 13
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+#define YT8512_EN_SLEEP_SW_BIT 15
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+
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+#define YT8521_EXTREG_SLEEP_CONTROL1 0x27
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+#define YT8521_EN_SLEEP_SW_BIT 15
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+
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+#define YT8521_SPEED_MODE 0xc000
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+#define YT8521_DUPLEX 0x2000
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+#define YT8521_SPEED_MODE_BIT 14
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+#define YT8521_DUPLEX_BIT 13
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+#define YT8521_LINK_STATUS_BIT 10
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+
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+#endif /* _MOTORCOMM_PHY_H */
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