From: Christian Marangi Date: Thu, 9 May 2024 14:32:03 +0000 (+0200) Subject: generic: 6.6: backport patch adding support for rgmii-id in stmmac-ipq806x X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=9001014a24e4211a83246653b96721b79f4a92f7;p=openwrt%2Fstaging%2Fldir.git generic: 6.6: backport patch adding support for rgmii-id in stmmac-ipq806x Backport patch merged upstream for rgmii-id support in stmmac-ipq806x. This is needed for some device that directly connets PHY to the gmac port and require rgmii-id phy-modes. Signed-off-by: Christian Marangi --- diff --git a/target/linux/generic/backport-6.6/740-v6.10-net-stmmac-dwmac-ipq806x-account-for-rgmii-txid-rxid.patch b/target/linux/generic/backport-6.6/740-v6.10-net-stmmac-dwmac-ipq806x-account-for-rgmii-txid-rxid.patch new file mode 100644 index 0000000000..ab8e9ffab5 --- /dev/null +++ b/target/linux/generic/backport-6.6/740-v6.10-net-stmmac-dwmac-ipq806x-account-for-rgmii-txid-rxid.patch @@ -0,0 +1,68 @@ +From abb45a2477f533cd4aab3085defdff131e2e8c4f Mon Sep 17 00:00:00 2001 +From: Christian Marangi +Date: Mon, 6 May 2024 14:32:46 +0200 +Subject: [PATCH] net: stmmac: dwmac-ipq806x: account for rgmii-txid/rxid/id + phy-mode + +Currently the ipq806x dwmac driver is almost always used attached to the +CPU port of a switch and phy-mode was always set to "rgmii" or "sgmii". + +Some device came up with a special configuration where the PHY is +directly attached to the GMAC port and in those case phy-mode needs to +be set to "rgmii-id" to make the PHY correctly work and receive packets. + +Since the driver supports only "rgmii" and "sgmii" mode, when "rgmii-id" +(or variants) mode is set, the mode is rejected and probe fails. + +Add support also for these phy-modes to correctly setup PHYs that requires +delay applied to tx/rx. + +Signed-off-by: Christian Marangi +Reviewed-by: Andrew Lunn +Signed-off-by: David S. Miller +--- + drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c | 12 ++++++++++++ + 1 file changed, 12 insertions(+) + +--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c ++++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-ipq806x.c +@@ -171,6 +171,9 @@ static int ipq806x_gmac_set_speed(struct + + switch (gmac->phy_mode) { + case PHY_INTERFACE_MODE_RGMII: ++ case PHY_INTERFACE_MODE_RGMII_ID: ++ case PHY_INTERFACE_MODE_RGMII_RXID: ++ case PHY_INTERFACE_MODE_RGMII_TXID: + div = get_clk_div_rgmii(gmac, speed); + clk_bits = NSS_COMMON_CLK_GATE_RGMII_RX_EN(gmac->id) | + NSS_COMMON_CLK_GATE_RGMII_TX_EN(gmac->id); +@@ -412,6 +415,9 @@ static int ipq806x_gmac_probe(struct pla + val |= NSS_COMMON_GMAC_CTL_CSYS_REQ; + switch (gmac->phy_mode) { + case PHY_INTERFACE_MODE_RGMII: ++ case PHY_INTERFACE_MODE_RGMII_ID: ++ case PHY_INTERFACE_MODE_RGMII_RXID: ++ case PHY_INTERFACE_MODE_RGMII_TXID: + val |= NSS_COMMON_GMAC_CTL_PHY_IFACE_SEL; + break; + case PHY_INTERFACE_MODE_SGMII: +@@ -427,6 +433,9 @@ static int ipq806x_gmac_probe(struct pla + val &= ~(1 << NSS_COMMON_CLK_SRC_CTRL_OFFSET(gmac->id)); + switch (gmac->phy_mode) { + case PHY_INTERFACE_MODE_RGMII: ++ case PHY_INTERFACE_MODE_RGMII_ID: ++ case PHY_INTERFACE_MODE_RGMII_RXID: ++ case PHY_INTERFACE_MODE_RGMII_TXID: + val |= NSS_COMMON_CLK_SRC_CTRL_RGMII(gmac->id) << + NSS_COMMON_CLK_SRC_CTRL_OFFSET(gmac->id); + break; +@@ -444,6 +453,9 @@ static int ipq806x_gmac_probe(struct pla + val |= NSS_COMMON_CLK_GATE_PTP_EN(gmac->id); + switch (gmac->phy_mode) { + case PHY_INTERFACE_MODE_RGMII: ++ case PHY_INTERFACE_MODE_RGMII_ID: ++ case PHY_INTERFACE_MODE_RGMII_RXID: ++ case PHY_INTERFACE_MODE_RGMII_TXID: + val |= NSS_COMMON_CLK_GATE_RGMII_RX_EN(gmac->id) | + NSS_COMMON_CLK_GATE_RGMII_TX_EN(gmac->id); + break;