Merge tag 'nand/for-6.3' into mtd/next

NAND core changes:
* Check the data only read pattern only once
* Prepare the late addition of supported operation checks
* Support for sequential cache reads
* Fix nand_chip kdoc

Raw NAND changes:
* Fsl_elbc: Propagate HW ECC settings to HW
* Marvell: Add missing layouts
* Pasemi: Don't use static data to track per-device state
* Sunxi:
  - Fix the size of the last OOB region
  - Remove an unnecessary check
  - Remove an unnecessary check
  - Clean up chips after failed init
  - Precompute the ECC_CTL register value
  - Embed sunxi_nand_hw_ecc by value
  - Update OOB layout to match hardware
* tmio_nand: Remove driver
* vf610_nfc: Use regular comments for functions

SPI-NAND changes:
* Add support for AllianceMemory AS5F34G04SND
* Macronix: use scratch buffer for DMA operation

NAND ECC changes:
* Mediatek:
  - Add ECC support fot MT7986 IC
  - Add compatible for MT7986
  - dt-bindings: Split ECC engine with rawnand controller

Author: miquelraynal

Documentation/devicetree/bindings/mtd/mediatek,mtk-nfc.yaml

@@ -0,0 +1,155 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/mediatek,mtk-nfc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek(MTK) SoCs raw NAND FLASH controller (NFC)
+
+maintainers:
+  - Xiangsheng Hou <[email protected]>
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt2701-nfc
+      - mediatek,mt2712-nfc
+      - mediatek,mt7622-nfc
+
+  reg:
+    items:
+      - description: Base physical address and size of NFI.
+
+  interrupts:
+    items:
+      - description: NFI interrupt
+
+  clocks:
+    items:
+      - description: clock used for the controller
+      - description: clock used for the pad
+
+  clock-names:
+    items:
+      - const: nfi_clk
+      - const: pad_clk
+
+  ecc-engine:
+    description: device-tree node of the required ECC engine.
+    $ref: /schemas/types.yaml#/definitions/phandle
+
+patternProperties:
+  "^nand@[a-f0-9]$":
+    $ref: nand-chip.yaml#
+    unevaluatedProperties: false
+    properties:
+      reg:
+        maximum: 1
+      nand-on-flash-bbt: true
+      nand-ecc-mode:
+        const: hw
+
+allOf:
+  - $ref: nand-controller.yaml#
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt2701-nfc
+    then:
+      patternProperties:
+        "^nand@[a-f0-9]$":
+          properties:
+            nand-ecc-step-size:
+              enum: [ 512, 1024 ]
+            nand-ecc-strength:
+              enum: [4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36,
+                     40, 44, 48, 52, 56, 60]
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt2712-nfc
+    then:
+      patternProperties:
+        "^nand@[a-f0-9]$":
+          properties:
+            nand-ecc-step-size:
+              enum: [ 512, 1024 ]
+            nand-ecc-strength:
+              enum: [4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 28, 32, 36,
+                     40, 44, 48, 52, 56, 60, 68, 72, 80]
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            const: mediatek,mt7622-nfc
+    then:
+      patternProperties:
+        "^nand@[a-f0-9]$":
+          properties:
+            nand-ecc-step-size:
+              const: 512
+            nand-ecc-strength:
+              enum: [4, 6, 8, 10, 12]
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - ecc-engine
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt2701-clk.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        nand-controller@1100d000 {
+            compatible = "mediatek,mt2701-nfc";
+            reg = <0 0x1100d000 0 0x1000>;
+            interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_LOW>;
+            clocks = <&pericfg CLK_PERI_NFI>,
+                     <&pericfg CLK_PERI_NFI_PAD>;
+            clock-names = "nfi_clk", "pad_clk";
+            ecc-engine = <&bch>;
+            #address-cells = <1>;
+            #size-cells = <0>;
+
+            nand@0 {
+                reg = <0>;
+
+                nand-on-flash-bbt;
+                nand-ecc-mode = "hw";
+                nand-ecc-step-size = <1024>;
+                nand-ecc-strength = <24>;
+
+                partitions {
+                    compatible = "fixed-partitions";
+                    #address-cells = <1>;
+                    #size-cells = <1>;
+
+                    preloader@0 {
+                        label = "pl";
+                        read-only;
+                        reg = <0x0 0x400000>;
+                    };
+                    android@400000 {
+                        label = "android";
+                        reg = <0x400000 0x12c00000>;
+                    };
+                };
+            };
+        };
+    };

Documentation/devicetree/bindings/mtd/mediatek,nand-ecc-engine.yaml

@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/mediatek,nand-ecc-engine.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: MediaTek(MTK) SoCs NAND ECC engine
+
+maintainers:
+  - Xiangsheng Hou <[email protected]>
+
+description: |
+  MTK NAND ECC engine can cowork with MTK raw NAND and SPI NAND controller.
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt2701-ecc
+      - mediatek,mt2712-ecc
+      - mediatek,mt7622-ecc
+      - mediatek,mt7986-ecc
+
+  reg:
+    items:
+      - description: Base physical address and size of ECC.
+
+  interrupts:
+    items:
+      - description: ECC interrupt
+
+  clocks:
+    maxItems: 1
+
+  clock-names:
+    const: nfiecc_clk
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/mt2701-clk.h>
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        bch: ecc@1100e000 {
+            compatible = "mediatek,mt2701-ecc";
+            reg = <0 0x1100e000 0 0x1000>;
+            interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_LOW>;
+            clocks = <&pericfg CLK_PERI_NFI_ECC>;
+            clock-names = "nfiecc_clk";
+        };
+    };