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* [PATCH stable 5.10] Revert "arm64: dts: amlogic: add missing ethernet reset ID"
@ 2021-03-08  9:22 Neil Armstrong
  2021-03-08  9:51 ` Greg KH
  0 siblings, 1 reply; 2+ messages in thread
From: Neil Armstrong @ 2021-03-08  9:22 UTC (permalink / raw)
  To: stable
  Cc: linux-amlogic, Neil Armstrong, Corentin Labbe,
	Jérôme Brunet, Kevin Hilman

It has been reported on IRC and in KernelCI boot tests, this change breaks
internal PHY support on the Amlogic G12A/SM1 Based boards.

We suspect the added signal to reset more than the Ethernet MAC but also
the MDIO/(RG)MII mux used to redirect the MAC signals to the internal PHY.

This reverts commit f3362f0c18174a1f334a419ab7d567a36bd1b3f3 while we find
and acceptable solution to cleanly reset the Ethernet MAC.

commit 19f6fe976a61f9afc289b062b7ef67f99b72e7b9 upstream.

Cc: stable@vger.kernel.org # 5.10.x
Reported-by: Corentin Labbe <clabbe@baylibre.com>
Acked-by: Jérôme Brunet <jbrunet@baylibre.com>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20210126080951.2383740-1-narmstrong@baylibre.com
---
 arch/arm64/boot/dts/amlogic/meson-axg.dtsi        | 2 --
 arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi | 2 --
 arch/arm64/boot/dts/amlogic/meson-gx.dtsi         | 3 ---
 3 files changed, 7 deletions(-)

diff --git a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
index 724ee179b316..fae48efae83e 100644
--- a/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-axg.dtsi
@@ -227,8 +227,6 @@ ethmac: ethernet@ff3f0000 {
 				      "timing-adjustment";
 			rx-fifo-depth = <4096>;
 			tx-fifo-depth = <2048>;
-			resets = <&reset RESET_ETHERNET>;
-			reset-names = "stmmaceth";
 			status = "disabled";
 		};
 
diff --git a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
index a6127002573b..959b299344e5 100644
--- a/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-g12-common.dtsi
@@ -224,8 +224,6 @@ ethmac: ethernet@ff3f0000 {
 				      "timing-adjustment";
 			rx-fifo-depth = <4096>;
 			tx-fifo-depth = <2048>;
-			resets = <&reset RESET_ETHERNET>;
-			reset-names = "stmmaceth";
 			status = "disabled";
 
 			mdio0: mdio {
diff --git a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
index 726b91d3a905..0edd137151f8 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
+++ b/arch/arm64/boot/dts/amlogic/meson-gx.dtsi
@@ -13,7 +13,6 @@
 #include <dt-bindings/interrupt-controller/irq.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/power/meson-gxbb-power.h>
-#include <dt-bindings/reset/amlogic,meson-gxbb-reset.h>
 #include <dt-bindings/thermal/thermal.h>
 
 / {
@@ -576,8 +575,6 @@ ethmac: ethernet@c9410000 {
 			interrupt-names = "macirq";
 			rx-fifo-depth = <4096>;
 			tx-fifo-depth = <2048>;
-			resets = <&reset RESET_ETHERNET>;
-			reset-names = "stmmaceth";
 			power-domains = <&pwrc PWRC_GXBB_ETHERNET_MEM_ID>;
 			status = "disabled";
 		};
-- 
2.25.1


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linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

^ permalink raw reply	[flat|nested] 2+ messages in thread

* Re: [PATCH stable 5.10] Revert "arm64: dts: amlogic: add missing ethernet reset ID"
  2021-03-08  9:22 [PATCH stable 5.10] Revert "arm64: dts: amlogic: add missing ethernet reset ID" Neil Armstrong
@ 2021-03-08  9:51 ` Greg KH
  0 siblings, 0 replies; 2+ messages in thread
From: Greg KH @ 2021-03-08  9:51 UTC (permalink / raw)
  To: Neil Armstrong
  Cc: stable, linux-amlogic, Corentin Labbe, Jérôme Brunet,
	Kevin Hilman

On Mon, Mar 08, 2021 at 10:22:41AM +0100, Neil Armstrong wrote:
> It has been reported on IRC and in KernelCI boot tests, this change breaks
> internal PHY support on the Amlogic G12A/SM1 Based boards.
> 
> We suspect the added signal to reset more than the Ethernet MAC but also
> the MDIO/(RG)MII mux used to redirect the MAC signals to the internal PHY.
> 
> This reverts commit f3362f0c18174a1f334a419ab7d567a36bd1b3f3 while we find
> and acceptable solution to cleanly reset the Ethernet MAC.
> 
> commit 19f6fe976a61f9afc289b062b7ef67f99b72e7b9 upstream.

Now applied, thanks.

greg k-h

_______________________________________________
linux-amlogic mailing list
linux-amlogic@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-amlogic

^ permalink raw reply	[flat|nested] 2+ messages in thread

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2021-03-08  9:22 [PATCH stable 5.10] Revert "arm64: dts: amlogic: add missing ethernet reset ID" Neil Armstrong
2021-03-08  9:51 ` Greg KH

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