From 2d3da16317086ba6048c601ee88cdc96f19fd741 Mon Sep 17 00:00:00 2001 From: Tim Harvey Date: Fri, 7 Feb 2020 12:40:26 -0800 Subject: [PATCH 01/12] net: thunderx: use proper interface type for RGMII The configuration of the OCTEONTX XCV_DLL_CTL register via xcv_init_hw() is such that the RGMII RX delay is bypassed leaving the RGMII TX delay enabled in the MAC: /* Configure DLL - enable or bypass * TX no bypass, RX bypass */ cfg = readq_relaxed(xcv->reg_base + XCV_DLL_CTL); cfg &= ~0xFF03; cfg |= CLKRX_BYP; writeq_relaxed(cfg, xcv->reg_base + XCV_DLL_CTL); This would coorespond to a interface type of PHY_INTERFACE_MODE_RGMII_RXID and not PHY_INTERFACE_MODE_RGMII. Fixing this allows RGMII PHY drivers to do the right thing (enable RX delay in the PHY) instead of erroneously enabling both delays in the PHY. Signed-off-by: Tim Harvey Reviewed-by: Andrew Lunn Signed-off-by: David S. Miller --- drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c index 8ae28f8..5f2db9c 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c @@ -1042,7 +1042,7 @@ static int phy_interface_mode(u8 lmac_type) if (lmac_type == BGX_MODE_QSGMII) return PHY_INTERFACE_MODE_QSGMII; if (lmac_type == BGX_MODE_RGMII) - return PHY_INTERFACE_MODE_RGMII; + return PHY_INTERFACE_MODE_RGMII_RXID; return PHY_INTERFACE_MODE_SGMII; } -- 2.7.4