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net: designware: Allocate bb_miiphy using bb_miiphy_alloc() and fill in callbacks

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Allocate bb_miiphy using bb_miiphy_alloc() and fill in callbacks
currently listed in bb_miiphy_buses[] array. This is a temporary
duplication of assignment to avoid breakage, which will be removed
in follow up patches. At this point, the bb_miiphy callbacks can
reach these accessors by doing container_of() on struct mii_dev.

Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org>
Reviewed-by: Paul Barker <paul.barker.ct@bp.renesas.com>
This commit is contained in:
Marek Vasut 2025-02-22 21:33:27 +01:00
parent 08eefb5e79
commit cbb69c2faf
1 changed files with 20 additions and 3 deletions
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21
drivers/net/designware.c
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@ -307,14 +307,17 @@ int bb_miiphy_buses_num = ARRAY_SIZE(bb_miiphy_buses);
static int dw_bb_mdio_init(const char *name, struct udevice *dev) static int dw_bb_mdio_init(const char *name, struct udevice *dev)
{ {
struct dw_eth_dev *dwpriv = dev_get_priv(dev); struct dw_eth_dev *dwpriv = dev_get_priv(dev);
struct mii_dev *bus = mdio_alloc(); struct bb_miiphy_bus *bb_miiphy = bb_miiphy_alloc();
struct mii_dev *bus;
int ret; int ret;
if (!bus) { if (!bb_miiphy) {
printf("Failed to allocate MDIO bus\n"); printf("Failed to allocate MDIO bus\n");
return -ENOMEM; return -ENOMEM;
} }
bus = &bb_miiphy->mii;
debug("\n%s: use bitbang mii..\n", dev->name); debug("\n%s: use bitbang mii..\n", dev->name);
ret = gpio_request_by_name(dev, "snps,mdc-gpio", 0, ret = gpio_request_by_name(dev, "snps,mdc-gpio", 0,
&dwpriv->mdc_gpio, &dwpriv->mdc_gpio,
@ -345,6 +348,15 @@ static int dw_bb_mdio_init(const char *name, struct udevice *dev)
#endif #endif
bus->priv = dwpriv; bus->priv = dwpriv;
/* Copy the bus accessors, name and private data */
bb_miiphy->mdio_active = dw_eth_bb_mdio_active;
bb_miiphy->mdio_tristate = dw_eth_bb_mdio_tristate;
bb_miiphy->set_mdio = dw_eth_bb_set_mdio;
bb_miiphy->get_mdio = dw_eth_bb_get_mdio;
bb_miiphy->set_mdc = dw_eth_bb_set_mdc;
bb_miiphy->delay = dw_eth_bb_delay;
strlcpy(bb_miiphy->name, bus->name, MDIO_NAME_LEN);
return mdio_register(bus); return mdio_register(bus);
} }
#endif #endif
@ -968,6 +980,11 @@ int designware_eth_probe(struct udevice *dev)
/* continue here for cleanup if no PHY found */ /* continue here for cleanup if no PHY found */
err = ret; err = ret;
mdio_unregister(priv->bus); mdio_unregister(priv->bus);
#if IS_ENABLED(CONFIG_BITBANGMII) && IS_ENABLED(CONFIG_DM_GPIO)
if (bbmiiphy)
bb_miiphy_free(container_of(priv->bus, struct bb_miiphy_bus, mii));
else
#endif
mdio_free(priv->bus); mdio_free(priv->bus);
mdio_err: mdio_err: