arm64: dts: meson: Fix IRQ trigger type for macirq

A long running stress test on a custom board shipping an AXG SoCs and a
Realtek RTL8211F PHY revealed that after a few hours the connection
speed would drop drastically, from ~1000Mbps to ~3Mbps. At the same time
the 'macirq' (eth0) IRQ would stop being triggered at all and as
consequence the GMAC IRQs never ACKed.

After a painful investigation the problem seemed to be due to a wrong
defined IRQ type for the GMAC IRQ that should be LEVEL_HIGH instead of
EDGE_RISING.

The change in the macirq IRQ type also solved another long standing
issue affecting this SoC/PHY where EEE was causing the network
connection to die after stressing it with iperf3 (even though much
sooner). It's now possible to remove the 'eee-broken-1000t' quirk as
well.

Fixes: feb3cbea0946 ("ARM64: dts: meson-gxbb-odroidc2: fix GbE tx link breakage")
Fixes: 6d28d577510f ("ARM64: dts: meson-axg: fix ethernet stability issue")
Reviewed-by: Jerome Brunet <jbrunet@baylibre.com>
Tested-by: Jerome Brunet <jbrunet@baylibre.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index b160bd1..fffd557 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -166,7 +166,7 @@
                        compatible = "amlogic,meson-axg-dwmac", "snps,dwmac";
                        reg = <0x0 0xff3f0000 0x0 0x10000
                               0x0 0xff634540 0x0 0x8>;
-                       interrupts = <GIC_SPI 8 IRQ_TYPE_EDGE_RISING>;
+                       interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
                        interrupt-names = "macirq";
                        clocks = <&clkc CLKID_ETH>,
                                 <&clkc CLKID_FCLK_DIV2>,

diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index ed336c7..44c5c51 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -467,7 +467,7 @@
                        compatible = "amlogic,meson-gx-dwmac", "amlogic,meson-gxbb-dwmac", "snps,dwmac";
                        reg = <0x0 0xc9410000 0x0 0x10000
                               0x0 0xc8834540 0x0 0x4>;
-                       interrupts = <GIC_SPI 8 IRQ_TYPE_EDGE_RISING>;
+                       interrupts = <GIC_SPI 8 IRQ_TYPE_LEVEL_HIGH>;
                        interrupt-names = "macirq";
                        status = "disabled";
                };

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index 00f7be6..2e1cd5e 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -143,7 +143,6 @@
                        interrupt-parent = <&gpio_intc>;
                        /* MAC_INTR on GPIOZ_15 */
                        interrupts = <29 IRQ_TYPE_LEVEL_LOW>;
-                       eee-broken-1000t;
                };
        };
 };

diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
index 70325b2..ec09bb5 100644 (file)
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-wetek.dtsi
@@ -142,7 +142,6 @@
                eth_phy0: ethernet-phy@0 {
                        /* Realtek RTL8211F (0x001cc916) */
                        reg = <0>;
-                       eee-broken-1000t;
                };
        };
 };