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https://github.com/brain-hackers/u-boot-brain
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41575d8e4c
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
123 lines
2.6 KiB
C
123 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2020 NXP
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*/
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#include <common.h>
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#include <dm.h>
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#include <net.h>
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#include <dm/device-internal.h>
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#include <dm/uclass-internal.h>
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#include <dm/lists.h>
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struct eth_phy_device_priv {
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struct mii_dev *mdio_bus;
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};
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int eth_phy_binds_nodes(struct udevice *eth_dev)
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{
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ofnode mdio_node, phy_node;
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const char *node_name;
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int ret;
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mdio_node = dev_read_subnode(eth_dev, "mdio");
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if (!ofnode_valid(mdio_node)) {
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debug("%s: %s mdio subnode not found!", __func__,
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eth_dev->name);
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return -ENXIO;
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}
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ofnode_for_each_subnode(phy_node, mdio_node) {
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node_name = ofnode_get_name(phy_node);
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debug("* Found child node: '%s'\n", node_name);
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ret = device_bind_driver_to_node(eth_dev,
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"eth_phy_generic_drv",
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node_name, phy_node, NULL);
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if (ret) {
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debug(" - Eth phy binding error: %d\n", ret);
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continue;
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}
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debug(" - bound phy device: '%s'\n", node_name);
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}
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return 0;
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}
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int eth_phy_set_mdio_bus(struct udevice *eth_dev, struct mii_dev *mdio_bus)
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{
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struct udevice *dev;
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struct eth_phy_device_priv *uc_priv;
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for (uclass_first_device(UCLASS_ETH_PHY, &dev); dev;
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uclass_next_device(&dev)) {
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if (dev->parent == eth_dev) {
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uc_priv = (struct eth_phy_device_priv *)(dev->uclass_priv);
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if (!uc_priv->mdio_bus)
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uc_priv->mdio_bus = mdio_bus;
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}
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}
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return 0;
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}
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struct mii_dev *eth_phy_get_mdio_bus(struct udevice *eth_dev)
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{
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int ret;
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struct udevice *phy_dev;
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struct eth_phy_device_priv *uc_priv;
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/* Will probe the parent of phy device, then phy device */
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ret = uclass_get_device_by_phandle(UCLASS_ETH_PHY, eth_dev,
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"phy-handle", &phy_dev);
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if (!ret) {
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if (eth_dev != phy_dev->parent) {
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/*
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* phy_dev is shared and controlled by
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* other eth controller
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*/
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uc_priv = (struct eth_phy_device_priv *)(phy_dev->uclass_priv);
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if (uc_priv->mdio_bus)
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printf("Get shared mii bus on %s\n", eth_dev->name);
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else
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printf("Can't get shared mii bus on %s\n", eth_dev->name);
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return uc_priv->mdio_bus;
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}
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} else {
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printf("FEC: can't find phy-handle\n");
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}
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return NULL;
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}
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int eth_phy_get_addr(struct udevice *dev)
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{
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struct ofnode_phandle_args phandle_args;
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int reg;
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if (dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
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&phandle_args)) {
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debug("Failed to find phy-handle");
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return -ENODEV;
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}
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reg = ofnode_read_u32_default(phandle_args.node, "reg", 0);
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return reg;
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}
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UCLASS_DRIVER(eth_phy_generic) = {
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.id = UCLASS_ETH_PHY,
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.name = "eth_phy_generic",
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.per_device_auto = sizeof(struct eth_phy_device_priv),
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};
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U_BOOT_DRIVER(eth_phy_generic_drv) = {
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.name = "eth_phy_generic_drv",
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.id = UCLASS_ETH_PHY,
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};
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