diff options
| -rw-r--r-- | drivers/net/Kconfig | 6 | ||||
| -rw-r--r-- | drivers/net/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/eth-phy-uclass.c | 122 | ||||
| -rw-r--r-- | include/dm/uclass-id.h | 1 | ||||
| -rw-r--r-- | include/eth_phy.h | 17 | ||||
| -rw-r--r-- | net/eth-uclass.c | 5 |
6 files changed, 152 insertions, 0 deletions
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index a2587a29e1..38f2bd6637 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -57,6 +57,12 @@ config MDIO_MUX_SANDBOX This driver is used for testing in test/dm/mdio.c +config DM_ETH_PHY + bool "Enable Driver Model for Ethernet Generic PHY drivers" + depends on DM + help + Enable driver model for Ethernet Generic PHY . + menuconfig NETDEVICES bool "Network device support" depends on NET diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 6d9b8772b1..383ed1c64f 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -20,6 +20,7 @@ obj-$(CONFIG_ETH_DESIGNWARE) += designware.o obj-$(CONFIG_ETH_DESIGNWARE_SOCFPGA) += dwmac_socfpga.o obj-$(CONFIG_DRIVER_DM9000) += dm9000x.o obj-$(CONFIG_DNET) += dnet.o +obj-$(CONFIG_DM_ETH_PHY) += eth-phy-uclass.o obj-$(CONFIG_E1000) += e1000.o obj-$(CONFIG_E1000_SPI) += e1000_spi.o obj-$(CONFIG_EEPRO100) += eepro100.o diff --git a/drivers/net/eth-phy-uclass.c b/drivers/net/eth-phy-uclass.c new file mode 100644 index 0000000000..b383f45527 --- /dev/null +++ b/drivers/net/eth-phy-uclass.c @@ -0,0 +1,122 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright 2020 NXP + */ + +#include <common.h> +#include <dm.h> +#include <net.h> +#include <dm/device-internal.h> +#include <dm/uclass-internal.h> +#include <dm/lists.h> + +struct eth_phy_device_priv { + struct mii_dev *mdio_bus; +}; + +int eth_phy_binds_nodes(struct udevice *eth_dev) +{ + ofnode mdio_node, phy_node; + const char *node_name; + int ret; + + mdio_node = dev_read_subnode(eth_dev, "mdio"); + if (!ofnode_valid(mdio_node)) { + debug("%s: %s mdio subnode not found!", __func__, + eth_dev->name); + return -ENXIO; + } + + ofnode_for_each_subnode(phy_node, mdio_node) { + node_name = ofnode_get_name(phy_node); + + debug("* Found child node: '%s'\n", node_name); + + ret = device_bind_driver_to_node(eth_dev, + "eth_phy_generic_drv", + node_name, phy_node, NULL); + if (ret) { + debug(" - Eth phy binding error: %d\n", ret); + continue; + } + + debug(" - bound phy device: '%s'\n", node_name); + } + + return 0; +} + +int eth_phy_set_mdio_bus(struct udevice *eth_dev, struct mii_dev *mdio_bus) +{ + struct udevice *dev; + struct eth_phy_device_priv *uc_priv; + + for (uclass_first_device(UCLASS_ETH_PHY, &dev); dev; + uclass_next_device(&dev)) { + if (dev->parent == eth_dev) { + uc_priv = (struct eth_phy_device_priv *)(dev->uclass_priv); + + if (!uc_priv->mdio_bus) + uc_priv->mdio_bus = mdio_bus; + } + } + + return 0; +} + +struct mii_dev *eth_phy_get_mdio_bus(struct udevice *eth_dev) +{ + int ret; + struct udevice *phy_dev; + struct eth_phy_device_priv *uc_priv; + + /* Will probe the parent of phy device, then phy device */ + ret = uclass_get_device_by_phandle(UCLASS_ETH_PHY, eth_dev, + "phy-handle", &phy_dev); + if (!ret) { + if (eth_dev != phy_dev->parent) { + /* + * phy_dev is shared and controlled by + * other eth controller + */ + uc_priv = (struct eth_phy_device_priv *)(phy_dev->uclass_priv); + if (uc_priv->mdio_bus) + printf("Get shared mii bus on %s\n", eth_dev->name); + else + printf("Can't get shared mii bus on %s\n", eth_dev->name); + + return uc_priv->mdio_bus; + } + } else { + printf("FEC: can't find phy-handle\n"); + } + + return NULL; +} + +int eth_phy_get_addr(struct udevice *dev) +{ + struct ofnode_phandle_args phandle_args; + int reg; + + if (dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0, + &phandle_args)) { + debug("Failed to find phy-handle"); + return -ENODEV; + } + + reg = ofnode_read_u32_default(phandle_args.node, "reg", 0); + + return reg; +} + +UCLASS_DRIVER(eth_phy_generic) = { + .id = UCLASS_ETH_PHY, + .name = "eth_phy_generic", + .per_device_auto_alloc_size = sizeof(struct eth_phy_device_priv), +}; + +U_BOOT_DRIVER(eth_phy_generic_drv) = { + .name = "eth_phy_generic_drv", + .id = UCLASS_ETH_PHY, +}; diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index 37ada51f9f..7837d459f1 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -47,6 +47,7 @@ enum uclass_id { UCLASS_DMA, /* Direct Memory Access */ UCLASS_EFI, /* EFI managed devices */ UCLASS_ETH, /* Ethernet device */ + UCLASS_ETH_PHY, /* Ethernet PHY device */ UCLASS_FIRMWARE, /* Firmware */ UCLASS_FS_FIRMWARE_LOADER, /* Generic loader */ UCLASS_GPIO, /* Bank of general-purpose I/O pins */ diff --git a/include/eth_phy.h b/include/eth_phy.h new file mode 100644 index 0000000000..19c496551b --- /dev/null +++ b/include/eth_phy.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2020 NXP + */ + +#ifndef _eth_phy_h_ +#define _eth_phy_h_ + +#include <dm.h> +#include <phy.h> + +int eth_phy_binds_nodes(struct udevice *eth_dev); +int eth_phy_set_mdio_bus(struct udevice *eth_dev, struct mii_dev *mdio_bus); +struct mii_dev *eth_phy_get_mdio_bus(struct udevice *eth_dev); +int eth_phy_get_addr(struct udevice *dev); + +#endif diff --git a/net/eth-uclass.c b/net/eth-uclass.c index 950a48d520..48560d59f6 100644 --- a/net/eth-uclass.c +++ b/net/eth-uclass.c @@ -13,6 +13,7 @@ #include <dm/uclass-internal.h> #include <net/pcap.h> #include "eth_internal.h" +#include <eth_phy.h> DECLARE_GLOBAL_DATA_PTR; @@ -461,6 +462,10 @@ static int eth_post_bind(struct udevice *dev) return -EINVAL; } +#ifdef CONFIG_DM_ETH_PHY + eth_phy_binds_nodes(dev); +#endif + return 0; } |