From 6863c6c5f3a742dff0a4bf37b3a9da2b8fa2b40c Mon Sep 17 00:00:00 2001 From: Rosen Penev Date: Thu, 4 Jun 2026 14:17:26 -0700 Subject: [PATCH] generic: ppc: replace revert with proper solution Upstream removed simple-bus from the NAND node to match documentation, but failed to keep fsl,ifc working. Add a patch that properly fixes this. Signed-off-by: Rosen Penev Link: https://github.com/openwrt/openwrt/pull/23657 Signed-off-by: Robert Marko --- ...-simple-bus-compatible-from-ifc-node.patch | 125 ------------------ ...5xx-Add-fsl-ifc-to-common-device-ids.patch | 107 +++++++++++++++ ...-simple-bus-compatible-from-ifc-node.patch | 125 ------------------ ...5xx-Add-fsl-ifc-to-common-device-ids.patch | 107 +++++++++++++++ 4 files changed, 214 insertions(+), 250 deletions(-) delete mode 100644 target/linux/generic/pending-6.12/303-Revert-powerpc-dts-mpc85xx-remove-simple-bus-compatible-from-ifc-node.patch create mode 100644 target/linux/generic/pending-6.12/303-powerpc-85xx-Add-fsl-ifc-to-common-device-ids.patch delete mode 100644 target/linux/generic/pending-6.18/303-Revert-powerpc-dts-mpc85xx-remove-simple-bus-compatible-from-ifc-node.patch create mode 100644 target/linux/generic/pending-6.18/303-powerpc-85xx-Add-fsl-ifc-to-common-device-ids.patch diff --git a/target/linux/generic/pending-6.12/303-Revert-powerpc-dts-mpc85xx-remove-simple-bus-compatible-from-ifc-node.patch b/target/linux/generic/pending-6.12/303-Revert-powerpc-dts-mpc85xx-remove-simple-bus-compatible-from-ifc-node.patch deleted file mode 100644 index 31f15a576ff..00000000000 --- a/target/linux/generic/pending-6.12/303-Revert-powerpc-dts-mpc85xx-remove-simple-bus-compatible-from-ifc-node.patch +++ /dev/null @@ -1,125 +0,0 @@ -From patchwork Wed Nov 5 20:55:24 2025 -From: Rosen Penev -Subject: [PATCH] Revert "powerpc: dts: mpc85xx: remove "simple-bus" compatible - from ifc node" -Date: Wed, 5 Nov 2025 12:55:24 -0800 - -This reverts commit 0bf51cc9e9e57a751b4c5dacbfa499ba5cd8bd72. - -simple-bus is needed for legacy platforms such as P1010 so that nodes -are populated properly. - -Fixes fsl,ifc-nand probing under at least P1010. - -Signed-off-by: Rosen Penev ---- - arch/powerpc/boot/dts/fsl/b4si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/bsc9132si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/c293si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/p1010si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/t1023si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/t1040si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/t2081si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/t4240si-post.dtsi | 2 +- - 9 files changed, 9 insertions(+), 9 deletions(-) - ---- a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi -@@ -50,7 +50,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <25 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi -@@ -35,7 +35,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <16 2 0 0 20 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/bsc9132si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/bsc9132si-post.dtsi -@@ -35,7 +35,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - /* FIXME: Test whether interrupts are split */ - interrupts = <16 2 0 0 20 2 0 0>; - }; ---- a/arch/powerpc/boot/dts/fsl/c293si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/c293si-post.dtsi -@@ -35,7 +35,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <19 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi -@@ -35,7 +35,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <16 2 0 0 19 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/t1023si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/t1023si-post.dtsi -@@ -52,7 +52,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <25 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi -@@ -52,7 +52,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <25 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/t2081si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/t2081si-post.dtsi -@@ -50,7 +50,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <25 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi -@@ -50,7 +50,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <25 2 0 0>; - }; - diff --git a/target/linux/generic/pending-6.12/303-powerpc-85xx-Add-fsl-ifc-to-common-device-ids.patch b/target/linux/generic/pending-6.12/303-powerpc-85xx-Add-fsl-ifc-to-common-device-ids.patch new file mode 100644 index 00000000000..b6ea5346b07 --- /dev/null +++ b/target/linux/generic/pending-6.12/303-powerpc-85xx-Add-fsl-ifc-to-common-device-ids.patch @@ -0,0 +1,107 @@ +From mboxrd@z Thu Jan 1 00:00:00 1970 +Received: from mail-pl1-f171.google.com (mail-pl1-f171.google.com [209.85.214.171]) + (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) + (No client certificate requested) + by smtp.subspace.kernel.org (Postfix) with ESMTPS id E21C8288505 + for ; 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+ Wed, 03 Jun 2026 21:33:28 -0700 (PDT) +Received: from ryzen ([2601:644:8000:5b5d:7285:c2ff:fe45:8a32]) + by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c85df0a63b3sm3503663a12.21.2026.06.03.21.33.26 + (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); + Wed, 03 Jun 2026 21:33:27 -0700 (PDT) +From: Rosen Penev +To: linuxppc-dev@lists.ozlabs.org +Cc: Scott Wood , + Madhavan Srinivasan , + Michael Ellerman , + Nicholas Piggin , + "Christophe Leroy (CS GROUP)" , + Frank Li , + Li Yang , + linux-kernel@vger.kernel.org (open list) +Subject: [PATCH] powerpc/85xx: Add fsl,ifc to common device ids +Date: Wed, 3 Jun 2026 21:33:09 -0700 +Message-ID: <20260604043309.91280-1-rosenp@gmail.com> +X-Mailer: git-send-email 2.54.0 +Precedence: bulk +X-Mailing-List: linux-kernel@vger.kernel.org +List-Id: +List-Subscribe: +List-Unsubscribe: +MIME-Version: 1.0 +Content-Transfer-Encoding: 8bit + +Add fsl,ifc to mpc85xx_common_ids so that of_platform_bus_probe +creates a platform device for the IFC node even without 'simple-bus' +in its compatible property. On P1010 and similar platforms the IFC +node is a direct child of the root, so it must be explicitly matched +to be populated. + +Fixes: 0bf51cc9e9e5 ("powerpc: dts: mpc85xx: remove simple-bus compatible from ifc node") + +Assisted-by: opencode:big-pickle +Signed-off-by: Rosen Penev +--- + arch/powerpc/platforms/85xx/common.c | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/arch/powerpc/platforms/85xx/common.c ++++ b/arch/powerpc/platforms/85xx/common.c +@@ -42,6 +42,8 @@ static const struct of_device_id mpc85xx + { .compatible = "fsl,qoriq-pcie-v2.3", }, + { .compatible = "fsl,qoriq-pcie-v2.2", }, + { .compatible = "fsl,fman", }, ++ /* IFC NAND and NOR controllers */ ++ { .compatible = "fsl,ifc", }, + {}, + }; + diff --git a/target/linux/generic/pending-6.18/303-Revert-powerpc-dts-mpc85xx-remove-simple-bus-compatible-from-ifc-node.patch b/target/linux/generic/pending-6.18/303-Revert-powerpc-dts-mpc85xx-remove-simple-bus-compatible-from-ifc-node.patch deleted file mode 100644 index 31f15a576ff..00000000000 --- a/target/linux/generic/pending-6.18/303-Revert-powerpc-dts-mpc85xx-remove-simple-bus-compatible-from-ifc-node.patch +++ /dev/null @@ -1,125 +0,0 @@ -From patchwork Wed Nov 5 20:55:24 2025 -From: Rosen Penev -Subject: [PATCH] Revert "powerpc: dts: mpc85xx: remove "simple-bus" compatible - from ifc node" -Date: Wed, 5 Nov 2025 12:55:24 -0800 - -This reverts commit 0bf51cc9e9e57a751b4c5dacbfa499ba5cd8bd72. - -simple-bus is needed for legacy platforms such as P1010 so that nodes -are populated properly. - -Fixes fsl,ifc-nand probing under at least P1010. - -Signed-off-by: Rosen Penev ---- - arch/powerpc/boot/dts/fsl/b4si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/bsc9132si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/c293si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/p1010si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/t1023si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/t1040si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/t2081si-post.dtsi | 2 +- - arch/powerpc/boot/dts/fsl/t4240si-post.dtsi | 2 +- - 9 files changed, 9 insertions(+), 9 deletions(-) - ---- a/arch/powerpc/boot/dts/fsl/b4si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/b4si-post.dtsi -@@ -50,7 +50,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <25 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/bsc9131si-post.dtsi -@@ -35,7 +35,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <16 2 0 0 20 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/bsc9132si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/bsc9132si-post.dtsi -@@ -35,7 +35,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - /* FIXME: Test whether interrupts are split */ - interrupts = <16 2 0 0 20 2 0 0>; - }; ---- a/arch/powerpc/boot/dts/fsl/c293si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/c293si-post.dtsi -@@ -35,7 +35,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <19 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/p1010si-post.dtsi -@@ -35,7 +35,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <16 2 0 0 19 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/t1023si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/t1023si-post.dtsi -@@ -52,7 +52,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <25 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi -@@ -52,7 +52,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <25 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/t2081si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/t2081si-post.dtsi -@@ -50,7 +50,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <25 2 0 0>; - }; - ---- a/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi -+++ b/arch/powerpc/boot/dts/fsl/t4240si-post.dtsi -@@ -50,7 +50,7 @@ - &ifc { - #address-cells = <2>; - #size-cells = <1>; -- compatible = "fsl,ifc"; -+ compatible = "fsl,ifc", "simple-bus"; - interrupts = <25 2 0 0>; - }; - diff --git a/target/linux/generic/pending-6.18/303-powerpc-85xx-Add-fsl-ifc-to-common-device-ids.patch b/target/linux/generic/pending-6.18/303-powerpc-85xx-Add-fsl-ifc-to-common-device-ids.patch new file mode 100644 index 00000000000..b6ea5346b07 --- /dev/null +++ b/target/linux/generic/pending-6.18/303-powerpc-85xx-Add-fsl-ifc-to-common-device-ids.patch @@ -0,0 +1,107 @@ +From mboxrd@z Thu Jan 1 00:00:00 1970 +Received: from mail-pl1-f171.google.com (mail-pl1-f171.google.com [209.85.214.171]) + (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) + (No client certificate requested) + by smtp.subspace.kernel.org (Postfix) with ESMTPS id E21C8288505 + for ; 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+ Wed, 03 Jun 2026 21:33:28 -0700 (PDT) +Received: from ryzen ([2601:644:8000:5b5d:7285:c2ff:fe45:8a32]) + by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-c85df0a63b3sm3503663a12.21.2026.06.03.21.33.26 + (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); + Wed, 03 Jun 2026 21:33:27 -0700 (PDT) +From: Rosen Penev +To: linuxppc-dev@lists.ozlabs.org +Cc: Scott Wood , + Madhavan Srinivasan , + Michael Ellerman , + Nicholas Piggin , + "Christophe Leroy (CS GROUP)" , + Frank Li , + Li Yang , + linux-kernel@vger.kernel.org (open list) +Subject: [PATCH] powerpc/85xx: Add fsl,ifc to common device ids +Date: Wed, 3 Jun 2026 21:33:09 -0700 +Message-ID: <20260604043309.91280-1-rosenp@gmail.com> +X-Mailer: git-send-email 2.54.0 +Precedence: bulk +X-Mailing-List: linux-kernel@vger.kernel.org +List-Id: +List-Subscribe: +List-Unsubscribe: +MIME-Version: 1.0 +Content-Transfer-Encoding: 8bit + +Add fsl,ifc to mpc85xx_common_ids so that of_platform_bus_probe +creates a platform device for the IFC node even without 'simple-bus' +in its compatible property. On P1010 and similar platforms the IFC +node is a direct child of the root, so it must be explicitly matched +to be populated. + +Fixes: 0bf51cc9e9e5 ("powerpc: dts: mpc85xx: remove simple-bus compatible from ifc node") + +Assisted-by: opencode:big-pickle +Signed-off-by: Rosen Penev +--- + arch/powerpc/platforms/85xx/common.c | 2 ++ + 1 file changed, 2 insertions(+) + +--- a/arch/powerpc/platforms/85xx/common.c ++++ b/arch/powerpc/platforms/85xx/common.c +@@ -42,6 +42,8 @@ static const struct of_device_id mpc85xx + { .compatible = "fsl,qoriq-pcie-v2.3", }, + { .compatible = "fsl,qoriq-pcie-v2.2", }, + { .compatible = "fsl,fman", }, ++ /* IFC NAND and NOR controllers */ ++ { .compatible = "fsl,ifc", }, + {}, + }; + -- 2.47.3