cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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gpmi-nand.yaml (4179B)

      1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/mtd/gpmi-nand.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: Freescale General-Purpose Media Interface (GPMI) binding
      8
      9maintainers:
     10  - Han Xu <han.xu@nxp.com>
     11
     12description: |
     13  The GPMI nand controller provides an interface to control the NAND
     14  flash chips. The device tree may optionally contain sub-nodes
     15  describing partitions of the address space. See partition.txt for
     16  more detail.
     17
     18properties:
     19  compatible:
     20    oneOf:
     21      - enum:
     22          - fsl,imx23-gpmi-nand
     23          - fsl,imx28-gpmi-nand
     24          - fsl,imx6q-gpmi-nand
     25          - fsl,imx6sx-gpmi-nand
     26          - fsl,imx7d-gpmi-nand
     27      - items:
     28          - enum:
     29              - fsl,imx8mm-gpmi-nand
     30              - fsl,imx8mn-gpmi-nand
     31          - const: fsl,imx7d-gpmi-nand
     32
     33  reg:
     34    items:
     35      - description: Address and length of gpmi block.
     36      - description: Address and length of bch block.
     37
     38  reg-names:
     39    items:
     40      - const: gpmi-nand
     41      - const: bch
     42
     43  interrupts:
     44    maxItems: 1
     45
     46  interrupt-names:
     47    const: bch
     48
     49  dmas:
     50    maxItems: 1
     51
     52  dma-names:
     53    const: rx-tx
     54
     55  clocks:
     56    minItems: 1
     57    maxItems: 5
     58
     59  clock-names:
     60    minItems: 1
     61    maxItems: 5
     62
     63  fsl,use-minimum-ecc:
     64    type: boolean
     65    description: |
     66      Protect this NAND flash with the minimum ECC strength required.
     67      The required ECC strength is automatically discoverable for some
     68      flash (e.g., according to the ONFI standard). However, note that
     69      if this strength is not discoverable or this property is not enabled,
     70      the software may chooses an implementation-defined ECC scheme.
     71
     72  fsl,no-blockmark-swap:
     73    type: boolean
     74    description: |
     75      Don't swap the bad block marker from the OOB area with the byte in
     76      the data area but rely on the flash based BBT for identifying bad blocks.
     77      NOTE: this is only valid in conjunction with 'nand-on-flash-bbt'.
     78      WARNING: on i.MX28 blockmark swapping cannot be disabled for the BootROM
     79      in the FCB. Thus, partitions written from Linux with this feature turned
     80      on may not be accessible by the BootROM code.
     81
     82required:
     83  - compatible
     84  - reg
     85  - reg-names
     86  - interrupts
     87  - interrupt-names
     88  - clocks
     89  - clock-names
     90  - dmas
     91  - dma-names
     92
     93unevaluatedProperties: false
     94
     95allOf:
     96  - $ref: "nand-controller.yaml"
     97
     98  - if:
     99      properties:
    100        compatible:
    101          contains:
    102            enum:
    103              - fsl,imx23-gpmi-nand
    104              - fsl,imx28-gpmi-nand
    105    then:
    106      properties:
    107        clocks:
    108          items:
    109            - description: SoC gpmi io clock
    110        clock-names:
    111          items:
    112            - const: gpmi_io
    113
    114  - if:
    115      properties:
    116        compatible:
    117          contains:
    118            enum:
    119              - fsl,imx6q-gpmi-nand
    120              - fsl,imx6sx-gpmi-nand
    121    then:
    122      properties:
    123        clocks:
    124          items:
    125            - description: SoC gpmi io clock
    126            - description: SoC gpmi apb clock
    127            - description: SoC gpmi bch clock
    128            - description: SoC gpmi bch apb clock
    129            - description: SoC per1 bch clock
    130        clock-names:
    131          items:
    132            - const: gpmi_io
    133            - const: gpmi_apb
    134            - const: gpmi_bch
    135            - const: gpmi_bch_apb
    136            - const: per1_bch
    137
    138  - if:
    139      properties:
    140        compatible:
    141          contains:
    142            const: fsl,imx7d-gpmi-nand
    143    then:
    144      properties:
    145        clocks:
    146          items:
    147            - description: SoC gpmi io clock
    148            - description: SoC gpmi bch apb clock
    149        clock-names:
    150          items:
    151            - const: gpmi_io
    152            - const: gpmi_bch_apb
    153
    154examples:
    155  - |
    156    nand-controller@8000c000 {
    157        #address-cells = <1>;
    158        #size-cells = <0>;
    159        compatible = "fsl,imx28-gpmi-nand";
    160        reg = <0x8000c000 0x2000>, <0x8000a000 0x2000>;
    161        reg-names = "gpmi-nand", "bch";
    162        interrupts = <41>;
    163        interrupt-names = "bch";
    164        clocks = <&clks 50>;
    165        clock-names = "gpmi_io";
    166        dmas = <&dma_apbh 4>;
    167        dma-names = "rx-tx";
    168    };