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ipq806x have different ecc configuration for boot partition and rootfs partition. Add support for this to fix IO error on mtd block scan. Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
48 lines
1.8 KiB
Diff
48 lines
1.8 KiB
Diff
From 6fb003a7a117f97a35b078ba726c84adeae29c4c Mon Sep 17 00:00:00 2001
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From: Ansuel Smith <ansuelsmth@gmail.com>
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Date: Wed, 10 Feb 2021 10:54:19 +0100
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Subject: [PATCH 2/2] Documentation: devicetree: mtd: qcom_nandc: document
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qcom,boot_layout_size binding
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Document new qcom,boot_layout_size binding used to apply special
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read/write confituation to boots partitions.
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Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
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---
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Documentation/devicetree/bindings/mtd/qcom_nandc.txt | 11 +++++++++++
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1 file changed, 11 insertions(+)
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diff --git a/Documentation/devicetree/bindings/mtd/qcom_nandc.txt b/Documentation/devicetree/bindings/mtd/qcom_nandc.txt
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index 5647913d8837..3cf1dd5ebad2 100644
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--- a/Documentation/devicetree/bindings/mtd/qcom_nandc.txt
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+++ b/Documentation/devicetree/bindings/mtd/qcom_nandc.txt
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@@ -56,6 +56,15 @@ Optional properties:
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be used according to chip requirement and available
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OOB size.
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+EBI2 specific properties:
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+- nand-is-boot-medium: nand contains boot partitions and different ecc configuration
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+ should be used for these partitions.
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+- qcom,boot_pages_size: should contain the size of the total boot partitions
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+ where the boot layout read/write specific configuration
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+ should be used. The boot layout is considered from the
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+ start of the nand to the value set in this binding.
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+ Only used in combination with 'nand-is-boot-medium'.
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+
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Each nandcs device node may optionally contain a 'partitions' sub-node, which
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further contains sub-nodes describing the flash partition mapping. See
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partition.txt for more detail.
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@@ -84,6 +93,9 @@ nand-controller@1ac00000 {
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nand-ecc-strength = <4>;
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nand-bus-width = <8>;
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+ nand-is-boot-medium;
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+ qcom,boot_pages_size: <0x58a0000>;
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+
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partitions {
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compatible = "fixed-partitions";
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#address-cells = <1>;
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--
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2.29.2
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