diff options
Diffstat (limited to 'target/linux/mvebu/patches-4.19/531-net-mvneta-Add-support-for-2500Mbps-SGMII.patch')
| -rw-r--r-- | target/linux/mvebu/patches-4.19/531-net-mvneta-Add-support-for-2500Mbps-SGMII.patch | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/target/linux/mvebu/patches-4.19/531-net-mvneta-Add-support-for-2500Mbps-SGMII.patch b/target/linux/mvebu/patches-4.19/531-net-mvneta-Add-support-for-2500Mbps-SGMII.patch deleted file mode 100644 index f56d726a28..0000000000 --- a/target/linux/mvebu/patches-4.19/531-net-mvneta-Add-support-for-2500Mbps-SGMII.patch +++ /dev/null @@ -1,104 +0,0 @@ -From da58a931f248f423f917c3a0b3c94303aa30a738 Mon Sep 17 00:00:00 2001 -From: Maxime Chevallier <maxime.chevallier@bootlin.com> -Date: Tue, 25 Sep 2018 15:59:39 +0200 -Subject: [PATCH] net: mvneta: Add support for 2500Mbps SGMII - -The mvneta controller can handle speeds up to 2500Mbps on the SGMII -interface. This relies on serdes configuration, the lane must be -configured at 3.125Gbps and we can't use in-band autoneg at that speed. - -The main issue when supporting that speed on this particular controller -is that the link partner can send ethernet frames with a shortened -preamble, which if not explicitly enabled in the controller will cause -unexpected behaviours. - -This was tested on Armada 385, with the comphy configuration done in -bootloader. - -Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com> -Signed-off-by: David S. Miller <davem@davemloft.net> ---- - drivers/net/ethernet/marvell/mvneta.c | 27 +++++++++++++++++++++++---- - 1 file changed, 23 insertions(+), 4 deletions(-) - ---- a/drivers/net/ethernet/marvell/mvneta.c -+++ b/drivers/net/ethernet/marvell/mvneta.c -@@ -221,6 +221,8 @@ - #define MVNETA_GMAC_AN_FLOW_CTRL_EN BIT(11) - #define MVNETA_GMAC_CONFIG_FULL_DUPLEX BIT(12) - #define MVNETA_GMAC_AN_DUPLEX_EN BIT(13) -+#define MVNETA_GMAC_CTRL_4 0x2c90 -+#define MVNETA_GMAC4_SHORT_PREAMBLE_ENABLE BIT(1) - #define MVNETA_MIB_COUNTERS_BASE 0x3000 - #define MVNETA_MIB_LATE_COLLISION 0x7c - #define MVNETA_DA_FILT_SPEC_MCAST 0x3400 -@@ -3358,6 +3360,7 @@ static void mvneta_validate(struct net_d - if (state->interface != PHY_INTERFACE_MODE_NA && - state->interface != PHY_INTERFACE_MODE_QSGMII && - state->interface != PHY_INTERFACE_MODE_SGMII && -+ state->interface != PHY_INTERFACE_MODE_2500BASEX && - !phy_interface_mode_is_8023z(state->interface) && - !phy_interface_mode_is_rgmii(state->interface)) { - bitmap_zero(supported, __ETHTOOL_LINK_MODE_MASK_NBITS); -@@ -3370,9 +3373,15 @@ static void mvneta_validate(struct net_d - - /* Asymmetric pause is unsupported */ - phylink_set(mask, Pause); -- /* Half-duplex at speeds higher than 100Mbit is unsupported */ -- phylink_set(mask, 1000baseT_Full); -- phylink_set(mask, 1000baseX_Full); -+ -+ /* We cannot use 1Gbps when using the 2.5G interface. */ -+ if (state->interface == PHY_INTERFACE_MODE_2500BASEX) { -+ phylink_set(mask, 2500baseT_Full); -+ phylink_set(mask, 2500baseX_Full); -+ } else { -+ phylink_set(mask, 1000baseT_Full); -+ phylink_set(mask, 1000baseX_Full); -+ } - - if (!phy_interface_mode_is_8023z(state->interface)) { - /* 10M and 100M are only supported in non-802.3z mode */ -@@ -3433,12 +3442,14 @@ static void mvneta_mac_config(struct net - struct mvneta_port *pp = netdev_priv(ndev); - u32 new_ctrl0, gmac_ctrl0 = mvreg_read(pp, MVNETA_GMAC_CTRL_0); - u32 new_ctrl2, gmac_ctrl2 = mvreg_read(pp, MVNETA_GMAC_CTRL_2); -+ u32 new_ctrl4, gmac_ctrl4 = mvreg_read(pp, MVNETA_GMAC_CTRL_4); - u32 new_clk, gmac_clk = mvreg_read(pp, MVNETA_GMAC_CLOCK_DIVIDER); - u32 new_an, gmac_an = mvreg_read(pp, MVNETA_GMAC_AUTONEG_CONFIG); - - new_ctrl0 = gmac_ctrl0 & ~MVNETA_GMAC0_PORT_1000BASE_X; - new_ctrl2 = gmac_ctrl2 & ~(MVNETA_GMAC2_INBAND_AN_ENABLE | - MVNETA_GMAC2_PORT_RESET); -+ new_ctrl4 = gmac_ctrl4 & ~(MVNETA_GMAC4_SHORT_PREAMBLE_ENABLE); - new_clk = gmac_clk & ~MVNETA_GMAC_1MS_CLOCK_ENABLE; - new_an = gmac_an & ~(MVNETA_GMAC_INBAND_AN_ENABLE | - MVNETA_GMAC_INBAND_RESTART_AN | -@@ -3471,7 +3482,7 @@ static void mvneta_mac_config(struct net - if (state->duplex) - new_an |= MVNETA_GMAC_CONFIG_FULL_DUPLEX; - -- if (state->speed == SPEED_1000) -+ if (state->speed == SPEED_1000 || state->speed == SPEED_2500) - new_an |= MVNETA_GMAC_CONFIG_GMII_SPEED; - else if (state->speed == SPEED_100) - new_an |= MVNETA_GMAC_CONFIG_MII_SPEED; -@@ -3510,10 +3521,18 @@ static void mvneta_mac_config(struct net - MVNETA_GMAC_FORCE_LINK_DOWN); - } - -+ /* When at 2.5G, the link partner can send frames with shortened -+ * preambles. -+ */ -+ if (state->speed == SPEED_2500) -+ new_ctrl4 |= MVNETA_GMAC4_SHORT_PREAMBLE_ENABLE; -+ - if (new_ctrl0 != gmac_ctrl0) - mvreg_write(pp, MVNETA_GMAC_CTRL_0, new_ctrl0); - if (new_ctrl2 != gmac_ctrl2) - mvreg_write(pp, MVNETA_GMAC_CTRL_2, new_ctrl2); -+ if (new_ctrl4 != gmac_ctrl4) -+ mvreg_write(pp, MVNETA_GMAC_CTRL_4, new_ctrl4); - if (new_clk != gmac_clk) - mvreg_write(pp, MVNETA_GMAC_CLOCK_DIVIDER, new_clk); - if (new_an != gmac_an) |