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realtek: mdio: convert RTL83xx reset to regmap

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Make use of regmap in RTL83xx reset functions.

Signed-off-by: Markus Stockhausen <markus.stockhausen@gmx.de>
Link: https://github.com/openwrt/openwrt/pull/21824
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Markus Stockhausen 2026-02-01 19:21:29 +01:00 • committed by Robert Marko
parent 1c0ffd816b
commit 7d222e69f7
1 changed files with 7 additions and 5 deletions
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12
target/linux/realtek/files-6.12/drivers/net/mdio/mdio-realtek-otto.c
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@ -662,7 +662,7 @@ static int rtmdio_838x_reset(struct mii_bus *bus)
int combo_phy;
/* Disable MAC polling for PHY config. It will be activated later in the DSA driver */
sw_w32(0, RTMDIO_838X_SMI_POLL_CTRL);
regmap_write(ctrl->map, RTMDIO_838X_SMI_POLL_CTRL, 0);
/*
* Control bits EX_PHY_MAN_xxx have an important effect on the detection of the media
@ -671,22 +671,24 @@ static int rtmdio_838x_reset(struct mii_bus *bus)
* PHY driven, it must be a combo PHY and media detection is needed.
*/
combo_phy = ctrl->smi_bus[24] < 0 ? 0 : BIT(7);
sw_w32_mask(BIT(7), combo_phy, RTMDIO_838X_SMI_GLB_CTRL);
regmap_update_bits(ctrl->map, RTMDIO_838X_SMI_GLB_CTRL, BIT(7), combo_phy);
return 0;
}
static int rtmdio_839x_reset(struct mii_bus *bus)
{
struct rtmdio_ctrl *ctrl = bus->priv;
return 0;
pr_debug("%s called\n", __func__);
/* BUG: The following does not work, but should! */
/* Disable MAC polling the PHY so that we can start configuration */
sw_w32(0x00000000, RTMDIO_839X_SMI_PORT_POLLING_CTRL);
sw_w32(0x00000000, RTMDIO_839X_SMI_PORT_POLLING_CTRL + 4);
regmap_write(ctrl->map, RTMDIO_839X_SMI_PORT_POLLING_CTRL, 0);
regmap_write(ctrl->map, RTMDIO_839X_SMI_PORT_POLLING_CTRL + 4, 0);
/* Disable PHY polling via SoC */
sw_w32_mask(1 << 7, 0, RTMDIO_839X_SMI_GLB_CTRL);
regmap_update_bits(ctrl->map, RTMDIO_839X_SMI_GLB_CTRL, BIT(7), 0);
/* Probably should reset all PHYs here... */
return 0;