bindings/mtd/gpmi-nand.yaml

1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/mtd/gpmi-nand.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Freescale General-Purpose Media Interface (GPMI)
10   - Han Xu <han.xu@nxp.com>
13   The GPMI nand controller provides an interface to control the NAND
14   flash chips. The device tree may optionally contain sub-nodes
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           - fsl,imx8qxp-gpmi-nand
28       - items:
29           - enum:
30               - fsl,imx8mm-gpmi-nand
31               - fsl,imx8mn-gpmi-nand
32           - const: fsl,imx7d-gpmi-nand
36       - description: Address and length of gpmi block.
37       - description: Address and length of bch block.
39   reg-names:
41       - const: gpmi-nand
42       - const: bch
47   interrupt-names:
53   dma-names:
54     const: rx-tx
60   clock-names:
64   fsl,use-minimum-ecc:
67       Protect this NAND flash with the minimum ECC strength required.
68       The required ECC strength is automatically discoverable for some
70       if this strength is not discoverable or this property is not enabled,
71       the software may chooses an implementation-defined ECC scheme.
73   fsl,no-blockmark-swap:
78       NOTE: this is only valid in conjunction with 'nand-on-flash-bbt'.
84   - compatible
85   - reg
86   - reg-names
87   - interrupts
88   - interrupt-names
89   - clocks
90   - clock-names
91   - dmas
92   - dma-names
97   - $ref: nand-controller.yaml
99   - if:
104               - fsl,imx23-gpmi-nand
105               - fsl,imx28-gpmi-nand
110             - description: SoC gpmi io clock
111         clock-names:
113             - const: gpmi_io
115   - if:
120               - fsl,imx6q-gpmi-nand
121               - fsl,imx6sx-gpmi-nand
126             - description: SoC gpmi io clock
127             - description: SoC gpmi apb clock
128             - description: SoC gpmi bch clock
129             - description: SoC gpmi bch apb clock
130             - description: SoC per1 bch clock
131         clock-names:
133             - const: gpmi_io
134             - const: gpmi_apb
135             - const: gpmi_bch
136             - const: gpmi_bch_apb
137             - const: per1_bch
139   - if:
143             const: fsl,imx7d-gpmi-nand
148             - description: SoC gpmi io clock
149             - description: SoC gpmi bch apb clock
150         clock-names:
152             - const: gpmi_io
153             - const: gpmi_bch_apb
155   - if:
160               - fsl,imx8qxp-gpmi-nand
165             - description: SoC gpmi io clock
166             - description: SoC gpmi apb clock
167             - description: SoC gpmi bch clock
168             - description: SoC gpmi bch apb clock
169         clock-names:
171             - const: gpmi_io
172             - const: gpmi_apb
173             - const: gpmi_bch
174             - const: gpmi_bch_apb
177   - |
178     nand-controller@8000c000 {
179         #address-cells = <1>;
180         #size-cells = <0>;
181         compatible = "fsl,imx28-gpmi-nand";
183         reg-names = "gpmi-nand", "bch";
185         interrupt-names = "bch";
187         clock-names = "gpmi_io";
189         dma-names = "rx-tx";