Merge tag 'nand/for-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/mtd/linux into mtd/next

Raw NAND core changes:
* Stop using nand_release(), patched all drivers.
* Give more information about the ECC weakness when not matching the
  chip's requirement.
* MAINTAINERS updates.
* Support emulated SLC mode on MLC NANDs.
* Support "constrained" controllers, adapt the core and ONFI/JEDEC
  table parsing and Micron's code.
* Take check_only into account.
* Add an invalid ECC mode to discriminate with valid ones.
* Return an enum from of_get_nand_ecc_algo().
* Drop OOB_FIRST placement scheme.
* Introduce nand_extract_bits().
* Ensure a consistent bitflips numbering.
* BCH lib:
  - Allow easy bit swapping.
  - Rework a little bit the exported function names.
* Fix nand_gpio_waitrdy().
* Propage CS selection to sub operations.
* Add a NAND_NO_BBM_QUIRK flag.
* Give the possibility to verify a read operation is supported.
* Add a helper to check supported operations.
* Avoid indirect access to ->data_buf().
* Rename the use_bufpoi variables.
* Fix comments about the use of bufpoi.
* Rename a NAND chip option.
* Reorder the nand_chip->options flags.
* Translate obscure bitfields into readable macros.
* Timings:
  - Fix default values.
  - Add mode information to the timings structure.

Raw NAND controller driver changes:
* Fixed many error paths.
* Arasan
  - New driver
* Au1550nd:
  - Various cleanups
  - Migration to ->exec_op()
* brcmnand:
  - Misc cleanup.
  - Support v2.1-v2.2 controllers.
  - Remove unused including <linux/version.h>.
  - Correctly verify erased pages.
  - Fix Hamming OOB layout.
* Cadence
  - Make cadence_nand_attach_chip static.
* Cafe:
  - Set the NAND_NO_BBM_QUIRK flag
* cmx270:
  - Remove this controller driver.
* cs553x:
  - Misc cleanup
  - Migration to ->exec_op()
* Davinci:
  - Misc cleanup.
  - Migration to ->exec_op()
* Denali:
  - Add more delays before latching incoming data
* Diskonchip:
   - Misc cleanup
   - Migration to ->exec_op()
* Fsmc:
  - Change to non-atomic bit operations.
* GPMI:
  - Use nand_extract_bits()
  - Fix runtime PM imbalance.
* Ingenic:
  - Migration to exec_op()
  - Fix the RB gpio active-high property on qi, lb60
  - Make qi_lb60_ooblayout_ops static.
* Marvell:
   - Misc cleanup and small fixes
* Nandsim:
  - Fix the error paths, driver wide.
* Omap_elm:
  - Fix runtime PM imbalance.
* STM32_FMC2:
  - Misc cleanups (error cases, comments, timeout valus, cosmetic
    changes).

3 files changed, 68 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/mtd/arasan,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/arasan,nand-controller.yaml
new file mode 100644
index 000000000000..db8f115a13ec
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/arasan,nand-controller.yaml
@@ -0,0 +1,63 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/arasan,nand-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Arasan NAND Flash Controller with ONFI 3.1 support device tree bindings
+
+allOf:
+  - $ref: "nand-controller.yaml"
+
+maintainers:
+  - Naga Sureshkumar Relli <naga.sureshkumar.relli@xilinx.com>
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+        - enum:
+          - xlnx,zynqmp-nand-controller
+        - enum:
+          - arasan,nfc-v3p10
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: Controller clock
+      - description: NAND bus clock
+
+  clock-names:
+    items:
+      - const: controller
+      - const: bus
+
+  interrupts:
+    maxItems: 1
+
+  "#address-cells": true
+  "#size-cells": true
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+  - interrupts
+
+additionalProperties: true
+
+examples:
+  - |
+    nfc: nand-controller@ff100000 {
+        compatible = "xlnx,zynqmp-nand-controller", "arasan,nfc-v3p10";
+        reg = <0x0 0xff100000 0x0 0x1000>;
+        clock-names = "controller", "bus";
+        clocks = <&clk200>, <&clk100>;
+        interrupt-parent = <&gic>;
+        interrupts = <0 14 4>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+    };
diff --git a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
index 05651a654c66..44335a4f8bfb 100644
--- a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
+++ b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
@@ -20,6 +20,8 @@ Required properties:
                      "brcm,brcmnand" and an appropriate version compatibility
                      string, like "brcm,brcmnand-v7.0"
                      Possible values:
+                         brcm,brcmnand-v2.1
+                         brcm,brcmnand-v2.2
                          brcm,brcmnand-v4.0
                          brcm,brcmnand-v5.0
                          brcm,brcmnand-v6.0
diff --git a/Documentation/devicetree/bindings/mtd/partition.txt b/Documentation/devicetree/bindings/mtd/partition.txt
index afbbd870496d..4a39698221a2 100644
--- a/Documentation/devicetree/bindings/mtd/partition.txt
+++ b/Documentation/devicetree/bindings/mtd/partition.txt
@@ -61,6 +61,9 @@ Optional properties:
   clobbered.
 - lock : Do not unlock the partition at initialization time (not supported on
   all devices)
+- slc-mode: This parameter, if present, allows one to emulate SLC mode on a
+  partition attached to an MLC NAND thus making this partition immune to
+  paired-pages corruptions
 
 Examples: