Document new qcom,boot_pages binding used to apply special
read/write configuration to boot pages.
QCOM apply a special configuration where spare data is not protected
by ECC for some special pages (used for boot partition). Add
Documentation on how to declare these special pages.
Signed-off-by: Ansuel Smith <ansuelsmth@xxxxxxxxx>
---
.../devicetree/bindings/mtd/qcom,nandc.yaml | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml b/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
index 84ad7ff30121..ef243109689d 100644
--- a/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
+++ b/Documentation/devicetree/bindings/mtd/qcom,nandc.yaml
@@ -78,6 +78,17 @@ allOf:
Must contain the ADM data type CRCI block instance number
specified for the NAND controller on the given platform
+ qcom,boot_pages:
+ $ref: /schemas/types.yaml#/definitions/uint32-array
+ description:
+ Some special page used by boot partition have spare data
+ not protected by ECC. Use this to declare these special page
+ by defining first the offset and then the size.
+
+ It's in the form of <offset1 size1 offset2 size2 offset3 ...>
+
+ Refer to the ipq8064 example on how to use this special binding.
+
- if:
properties:
compatible:
@@ -135,6 +146,8 @@ examples:
nand-ecc-strength = <4>;
nand-bus-width = <8>;
+ qcom,boot_pages = <0x0 0x58a0000>;
+
partitions {
compatible = "fixed-partitions";
#address-cells = <1>;
--
2.34.1
