7 files changed, 226 insertions, 0 deletions
diff --git a/components/drivers/Kconfig b/components/drivers/Kconfig
index 457b8751fe..db4455160e 100755
--- a/components/drivers/Kconfig
+++ b/components/drivers/Kconfig
@@ -103,6 +103,10 @@ if RT_USING_I2C
     endif
 endif
 
+config RT_USING_PHY
+    bool "Using ethernet phy device drivers"
+    default n
+
 config RT_USING_PIN
     bool "Using generic GPIO device drivers"
     default y
diff --git a/components/drivers/include/drivers/phy.h b/components/drivers/include/drivers/phy.h
new file mode 100644
index 0000000000..2d1ad9f91f
--- /dev/null
+++ b/components/drivers/include/drivers/phy.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-10-14     wangqiang    the first version
+ */
+
+#ifndef __PHY_H__
+#define __PHY_H__
+
+#include <rtthread.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+/* Defines the PHY link speed. This is align with the speed for MAC. */
+enum phy_speed
+{
+    PHY_SPEED_10M = 0U, /* PHY 10M speed. */
+    PHY_SPEED_100M      /* PHY 100M speed. */
+};
+
+/* Defines the PHY link duplex. */
+enum phy_duplex
+{
+    PHY_HALF_DUPLEX = 0U, /* PHY half duplex. */
+    PHY_FULL_DUPLEX       /* PHY full duplex. */
+};
+
+/*! @brief Defines the PHY loopback mode. */
+enum phy_loop
+{
+    PHY_LOCAL_LOOP = 0U, /* PHY local loopback. */
+    PHY_REMOTE_LOOP      /* PHY remote loopback. */
+};
+
+
+struct rt_phy_msg
+{
+    rt_uint32_t reg;
+    rt_uint32_t value;
+};
+
+typedef struct rt_phy_msg rt_phy_msg_t;
+
+
+struct rt_phy_device
+{
+    struct rt_device parent;
+    struct rt_mdio_bus *bus;
+    rt_uint32_t addr;
+    struct rt_phy_ops *ops;
+};
+
+typedef struct rt_phy_device rt_phy_t;
+
+
+enum {
+    PHY_STATUS_OK = 0,
+    PHY_STATUS_FAIL,
+    PHY_STATUS_TIMEOUT,
+};
+
+typedef rt_int32_t rt_phy_status;
+
+struct rt_phy_ops
+{
+    rt_phy_status (*init)(void *object, rt_uint32_t phy_addr, rt_uint32_t src_clock_hz);
+    rt_phy_status (*read)(rt_uint32_t reg, rt_uint32_t *data);
+    rt_phy_status (*write)(rt_uint32_t reg, rt_uint32_t data);
+    rt_phy_status (*loopback)(rt_uint32_t mode, rt_uint32_t speed, rt_bool_t enable);
+    rt_phy_status (*get_link_status)(rt_bool_t *status);
+    rt_phy_status (*get_link_speed_duplex)(rt_uint32_t *speed, rt_uint32_t *duplex);
+};
+
+rt_err_t rt_hw_phy_register(struct rt_phy_device *phy, const char *name);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __PHY_H__*/
diff --git a/components/drivers/include/drivers/phy_mdio.h b/components/drivers/include/drivers/phy_mdio.h
new file mode 100644
index 0000000000..d978ec2984
--- /dev/null
+++ b/components/drivers/include/drivers/phy_mdio.h
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2020-10-14     wangqiang    the first version
+ */
+
+#ifndef __MDIO_H__
+#define __MDIO_H__
+
+#include <rtthread.h>
+
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+
+
+struct rt_mdio_bus_ops
+{
+    rt_bool_t (*init)(void *bus, rt_uint32_t src_clock_hz);
+    rt_size_t (*read)(void *bus, rt_uint32_t addr, rt_uint32_t reg, void *data, rt_uint32_t size);
+    rt_size_t (*write)(void *bus, rt_uint32_t addr, rt_uint32_t reg, void *data, rt_uint32_t size);
+    rt_bool_t (*uninit)(void *bus);
+};
+
+struct rt_mdio_bus
+{
+    void *hw_obj;
+    char *name;
+    struct rt_mdio_bus_ops *ops;
+};
+
+typedef struct rt_mdio_bus rt_mdio_t;
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
diff --git a/components/drivers/include/rtdevice.h b/components/drivers/include/rtdevice.h
index f54290097c..f0fa2f5b4a 100644
--- a/components/drivers/include/rtdevice.h
+++ b/components/drivers/include/rtdevice.h
@@ -69,6 +69,11 @@ extern "C" {
 #endif /* RT_USING_I2C_BITOPS */
 #endif /* RT_USING_I2C */
 
+#ifdef RT_USING_PHY
+#include "drivers/phy.h"
+#include "drivers/phy_mdio.h"
+#endif /* RT_USING_PHY */
+
 #ifdef RT_USING_SDIO
 #include "drivers/mmcsd_core.h"
 #include "drivers/sd.h"
diff --git a/components/drivers/phy/SConscript b/components/drivers/phy/SConscript
new file mode 100644
index 0000000000..ec12ed24c2
--- /dev/null
+++ b/components/drivers/phy/SConscript
@@ -0,0 +1,8 @@
+from building import *
+
+cwd     = GetCurrentDir()
+src	= Glob('*.c')
+CPPPATH = [cwd + '/../include']
+group = DefineGroup('DeviceDrivers', src, depend = ['RT_USING_PHY'], CPPPATH = CPPPATH)
+
+Return('group')
diff --git a/components/drivers/phy/phy.c b/components/drivers/phy/phy.c
new file mode 100644
index 0000000000..3ed4a1a265
--- /dev/null
+++ b/components/drivers/phy/phy.c
@@ -0,0 +1,78 @@
+
+/*
+ * Copyright (c) 2006-2020, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author        Notes
+ * 2020-09-27     wangqiang     first version
+ */
+
+#include <rthw.h>
+#include <rtthread.h>
+#include <rtdevice.h>
+
+#define DBG_TAG "PHY"
+#define DBG_LVL DBG_INFO
+#include <rtdbg.h>
+
+
+static rt_size_t phy_device_read(rt_device_t dev, rt_off_t pos, void *buffer, rt_size_t count)
+{
+    struct rt_phy_device *phy = (struct rt_phy_device *)dev->user_data;
+    struct rt_phy_msg *msg = (struct rt_phy_msg *)buffer;
+    return phy->bus->ops->read(phy->bus, phy->addr, msg->reg, &(msg->value), 4);
+}
+static rt_size_t phy_device_write(rt_device_t dev, rt_off_t pos, const void *buffer, rt_size_t count)
+{
+    struct rt_phy_device *phy = (struct rt_phy_device *)dev->user_data;
+    struct rt_phy_msg *msg = (struct rt_phy_msg *)buffer;
+    return phy->bus->ops->write(phy->bus, phy->addr, msg->reg, &(msg->value), 4);
+}
+
+
+
+#ifdef RT_USING_DEVICE_OPS
+const static struct rt_device_ops phy_ops = 
+{
+    RT_NULL, 
+    RT_NULL,
+    RT_NULL,
+    phy_device_read,
+    phy_device_write,
+    RT_NULL,
+};
+#endif
+
+/*
+* phy device register
+*/
+rt_err_t rt_hw_phy_register(struct rt_phy_device *phy, const char *name)
+{
+    rt_err_t ret;
+    struct rt_device *device;
+
+    device = &(phy->parent);
+
+    device->type = RT_Device_Class_PHY;
+    device->rx_indicate = RT_NULL;
+    device->tx_complete = RT_NULL;
+
+#ifdef RT_USING_DEVICE_OPS
+    device->ops = phy_ops;
+#else
+    device->init = NULL;
+    device->open = NULL;
+    device->close = NULL;
+    device->read = phy_device_read;
+    device->write = phy_device_write;
+    device->control = NULL;
+#endif
+    device->user_data = phy;
+
+    /* register a character device */
+    ret = rt_device_register(device, name, RT_DEVICE_FLAG_RDWR);
+
+    return ret;
+}
diff --git a/components/finsh/cmd.c b/components/finsh/cmd.c
index d764ea4231..afbda59e90 100644
--- a/components/finsh/cmd.c
+++ b/components/finsh/cmd.c
@@ -821,6 +821,7 @@ static char *const device_type_str[] =
     "Miscellaneous Device",
     "Sensor Device",
     "Touch Device",
+    "Phy Device",
     "Unknown"
 };