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Merge pull request #1039 from agners/fix-ethernet-link-restart
Fix ethernet link not comming up (#1038)
This commit is contained in:
Stefan Agner
GitHub
commit
681fe1421a
@ -1,8 +1,8 @@
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From 734f52f38625ce29c964517255538b3b0b546e8d Mon Sep 17 00:00:00 2001
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Message-Id: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
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From 9d2a2b44e67b0ef49e534c097e8b5e3e1173b033 Mon Sep 17 00:00:00 2001
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Message-Id: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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From: Christian Hewitt <christianshewitt@gmail.com>
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Date: Tue, 15 Sep 2020 17:24:30 +0200
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Subject: [PATCH 1/7] arm64: dts: meson: convert ODROID-N2 to dtsi
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Subject: [PATCH 1/6] arm64: dts: meson: convert ODROID-N2 to dtsi
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Convert the current ODROID-N2 dts into a common dtsi in preparation
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for adding ODROID-N2+ support.
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@ -1282,5 +1282,5 @@ index 000000000000..6982632ae646
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+ phy-supply = <&hub_5v>;
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+};
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--
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2.28.0
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2.29.2
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@ -1,10 +1,10 @@
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From 75f1e8330dac46a0bef8a360be0ae4566d9a470c Mon Sep 17 00:00:00 2001
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Message-Id: <75f1e8330dac46a0bef8a360be0ae4566d9a470c.1603528796.git.stefan@agner.ch>
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In-Reply-To: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
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References: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
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From 258f03fa4fd897a61b5861df1f809e234711dd49 Mon Sep 17 00:00:00 2001
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Message-Id: <258f03fa4fd897a61b5861df1f809e234711dd49.1606779815.git.stefan@agner.ch>
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In-Reply-To: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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References: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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From: Christian Hewitt <christianshewitt@gmail.com>
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Date: Tue, 15 Sep 2020 17:24:31 +0200
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Subject: [PATCH 2/7] dt-bindings: arm: amlogic: add support for the ODROID-N2+
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Subject: [PATCH 2/6] dt-bindings: arm: amlogic: add support for the ODROID-N2+
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HardKernel ODROID-N2+ uses a revised Amlogic S922X v2 chip that supports
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higher cpu clock speeds than the original ODROID-N2.
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@ -32,5 +32,5 @@ index 5eba9f48823e..12ba8d074370 100644
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- ugoos,am6
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- const: amlogic,s922x
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--
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2.28.0
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2.29.2
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@ -1,10 +1,10 @@
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From c714cb26fcb59f5201f7aac68dfd9883319881b2 Mon Sep 17 00:00:00 2001
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Message-Id: <c714cb26fcb59f5201f7aac68dfd9883319881b2.1603528796.git.stefan@agner.ch>
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In-Reply-To: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
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References: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
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From 6cfaddae585e5a87c5253c932b8d58e153159f6b Mon Sep 17 00:00:00 2001
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Message-Id: <6cfaddae585e5a87c5253c932b8d58e153159f6b.1606779815.git.stefan@agner.ch>
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In-Reply-To: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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References: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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From: Christian Hewitt <christianshewitt@gmail.com>
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Date: Tue, 15 Sep 2020 17:24:32 +0200
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Subject: [PATCH 3/7] arm64: dts: meson: add support for the ODROID-N2+
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Subject: [PATCH 3/6] arm64: dts: meson: add support for the ODROID-N2+
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HardKernel ODROID-N2+ uses an Amlogic S922X rev. C chip capable of higher
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clock speeds than the original ODROID-N2.
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@ -74,5 +74,5 @@ index 000000000000..5de2815ba99d
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+};
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+
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--
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2.28.0
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2.29.2
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@ -1,10 +1,10 @@
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From 0a3a45efeefaf65c170df265126a07da3236e178 Mon Sep 17 00:00:00 2001
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Message-Id: <0a3a45efeefaf65c170df265126a07da3236e178.1603528796.git.stefan@agner.ch>
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In-Reply-To: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
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References: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
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From 47f804dc970e2b1f71f1f032a0da2ef3b8315be0 Mon Sep 17 00:00:00 2001
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Message-Id: <47f804dc970e2b1f71f1f032a0da2ef3b8315be0.1606779815.git.stefan@agner.ch>
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In-Reply-To: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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References: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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From: Jerome Brunet <jbrunet@baylibre.com>
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Date: Fri, 23 Oct 2020 11:41:39 +0200
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Subject: [PATCH 5/7] arm64: dts: meson: odroid-n2 plus: fix vddcpu_a pwm
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Subject: [PATCH 4/6] arm64: dts: meson: odroid-n2 plus: fix vddcpu_a pwm
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On the odroid N2 plus, cpufreq is not available due to an error on the cpu
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regulators. vddcpu a and b get the same PWM. The one provided to vddcpu A
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@ -38,5 +38,5 @@ index 5de2815ba99d..ce1198ad34e4 100644
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&vddcpu_b {
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--
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2.28.0
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2.29.2
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@ -1,10 +1,10 @@
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From 75b8900d6750fa9d44546219a9b925c5df73a985 Mon Sep 17 00:00:00 2001
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Message-Id: <75b8900d6750fa9d44546219a9b925c5df73a985.1605564817.git.stefan@agner.ch>
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In-Reply-To: <734f52f38625ce29c964517255538b3b0b546e8d.1605564817.git.stefan@agner.ch>
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References: <734f52f38625ce29c964517255538b3b0b546e8d.1605564817.git.stefan@agner.ch>
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From 2c15ad491233a80d61c811a944b86067e2e74686 Mon Sep 17 00:00:00 2001
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Message-Id: <2c15ad491233a80d61c811a944b86067e2e74686.1606779815.git.stefan@agner.ch>
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In-Reply-To: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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References: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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From: Stefan Agner <stefan@agner.ch>
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Date: Mon, 16 Nov 2020 23:11:02 +0100
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Subject: [PATCH 8/8] arm64: dts: meson: add RTC to ODROID-N2 boards
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Subject: [PATCH 5/6] arm64: dts: meson: add RTC to ODROID-N2 boards
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All ODROID-N2 boards come with a NXP PCF8563TS RTC connected to I2C bus
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3. This is the RTC which is connected to the on-board RTC backup battery.
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@ -0,0 +1,40 @@
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From 01467c329a3aa70f92ac3cc6d1ab25252889cc34 Mon Sep 17 00:00:00 2001
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Message-Id: <01467c329a3aa70f92ac3cc6d1ab25252889cc34.1606779815.git.stefan@agner.ch>
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In-Reply-To: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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References: <9d2a2b44e67b0ef49e534c097e8b5e3e1173b033.1606779815.git.stefan@agner.ch>
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From: Stefan Agner <stefan@agner.ch>
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Date: Tue, 1 Dec 2020 00:32:23 +0100
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Subject: [PATCH 6/6] arm64: dts: meson: fix PHY deassert timing requirements
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According to the datasheet (Rev. 1.4, page 30) the RTL8211F requires
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at least 50ms "for internal circuits settling time" before accessing
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the PHY registers. This fixes an issue where the Ethernet link doesn't
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come up when using ip link set down/up:
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[ 29.360965] meson8b-dwmac ff3f0000.ethernet eth0: Link is Down
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[ 34.569012] meson8b-dwmac ff3f0000.ethernet eth0: PHY [0.0:00] driver [RTL8211F Gigabit Ethernet] (irq=31)
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[ 34.676732] meson8b-dwmac ff3f0000.ethernet: Failed to reset the dma
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[ 34.678874] meson8b-dwmac ff3f0000.ethernet eth0: stmmac_hw_setup: DMA engine initialization failed
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[ 34.687850] meson8b-dwmac ff3f0000.ethernet eth0: stmmac_open: Hw setup failed
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Fixes: 658e4129bb81 ("arm64: dts: meson: g12b: odroid-n2: add the Ethernet PHY reset line")
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Signed-off-by: Stefan Agner <stefan@agner.ch>
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---
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arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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diff --git a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
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index 40390feba053..08c44fb0ccd0 100644
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--- a/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
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+++ b/arch/arm64/boot/dts/amlogic/meson-g12b-odroid-n2.dtsi
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@@ -415,7 +415,7 @@ external_phy: ethernet-phy@0 {
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max-speed = <1000>;
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reset-assert-us = <10000>;
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- reset-deassert-us = <30000>;
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+ reset-deassert-us = <50000>;
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reset-gpios = <&gpio GPIOZ_15 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>;
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interrupt-parent = <&gpio_intc>;
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--
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2.29.2
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@ -1,38 +0,0 @@
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From 03041630d824a775b71f6008067955a51d069845 Mon Sep 17 00:00:00 2001
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Message-Id: <03041630d824a775b71f6008067955a51d069845.1603528796.git.stefan@agner.ch>
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In-Reply-To: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
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References: <734f52f38625ce29c964517255538b3b0b546e8d.1603528796.git.stefan@agner.ch>
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From: Stefan Agner <stefan@agner.ch>
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Date: Thu, 27 Aug 2020 23:29:57 +0200
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Subject: [PATCH 6/7] clk: meson: g12a: mark fclk_div2 as critical
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On Amlogic Meson G12b platform, similar to fclk_div3, the fclk_div2
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seems to be necessary for the system to operate correctly as well.
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Typically, the clock also gets chosen by the eMMC peripheral. This
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probably masked the problem so far. However, when booting from a SD
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card the clock seems to get disabled which leads to a system freeze.
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Let's mark this clock as critical, fixing boot from SD card on G12b
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platforms.
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Signed-off-by: Stefan Agner <stefan@agner.ch>
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---
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drivers/clk/meson/g12a.c | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/drivers/clk/meson/g12a.c b/drivers/clk/meson/g12a.c
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index 9803d44bb157..9a6722a1dc19 100644
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--- a/drivers/clk/meson/g12a.c
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+++ b/drivers/clk/meson/g12a.c
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@@ -298,6 +298,7 @@ static struct clk_regmap g12a_fclk_div2 = {
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&g12a_fclk_div2_div.hw
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},
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.num_parents = 1,
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+ .flags = CLK_IS_CRITICAL,
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},
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};
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--
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2.28.0
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