@@ -463,8 +463,6 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode,
case PHY_INTERFACE_MODE_RGMII_ID:
case PHY_INTERFACE_MODE_RGMII:
case PHY_INTERFACE_MODE_MII:
- case PHY_INTERFACE_MODE_REVMII:
- case PHY_INTERFACE_MODE_RMII:
if (MTK_HAS_CAPS(eth->soc->caps, MTK_RGMII)) {
err = mtk_gmac_rgmii_path_setup(eth, mac->id);
if (err)
@@ -524,21 +522,13 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode,
}
}
- ge_mode = 0;
switch (state->interface) {
case PHY_INTERFACE_MODE_MII:
case PHY_INTERFACE_MODE_GMII:
ge_mode = 1;
break;
- case PHY_INTERFACE_MODE_REVMII:
- ge_mode = 2;
- break;
- case PHY_INTERFACE_MODE_RMII:
- if (mac->id)
- goto err_phy;
- ge_mode = 3;
- break;
default:
+ ge_mode = 0;
break;
}
Since the conversion of mtk_eth_soc to phylink's supported_interfaces bitmap, these two modes have not been selectable. No one has raised this as an issue. Checking the in-kernel DT files, none of them use either of these modes with this hardware. Daniel Golle concurs: A quick grep through the device trees of the more than 650 ramips and mediatek boards we support in OpenWrt has revealed that *none* of them uses either reduced-MII or reverse-MII PHY modes. I could imaging that some more specialized ramips boards may use the RMII 100M PHY mode to connect with exotic PHYs for industrial or automotive applications (think: for 100BASE-T1 PHY connected via RMII). I have never seen or touched such boards, but there are hints that they do exist. For reverse-MII there are cases in which the Ralink SoC (Rt305x, for example) is used in iNIC mode, ie. connected as a PHY to another SoC, and running only a minimal firmware rather than running Linux. Due to the lack of external DRAM for the Ralink SoC on this kind of boards, the Ralink SoC there will anyway never be able to boot Linux. I've seen this e.g. in multimedia devices like early WiFi-connected not-yet-so-smart TVs. Consequently, the conclusion is that no one uses these modes with this hardware, so we might as well drop support for them. Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 12 +----------- 1 file changed, 1 insertion(+), 11 deletions(-)