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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
| commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
| tree | a94efe259b9009378be6d90eb30d2b019d95c194 /Documentation/devicetree/bindings/mtd/lpc32xx-mlc.txt | |
| parent | Initial commit. (diff) | |
| download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip | |
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mtd/lpc32xx-mlc.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/mtd/lpc32xx-mlc.txt | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mtd/lpc32xx-mlc.txt b/Documentation/devicetree/bindings/mtd/lpc32xx-mlc.txt new file mode 100644 index 000000000..6d60bc306 --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/lpc32xx-mlc.txt @@ -0,0 +1,50 @@ +NXP LPC32xx SoC NAND MLC controller + +Required properties: +- compatible: "nxp,lpc3220-mlc" +- reg: Address and size of the controller +- interrupts: The NAND interrupt specification +- gpios: GPIO specification for NAND write protect + +The following required properties are very controller specific. See the LPC32xx +User Manual 7.5.14 MLC NAND Timing Register (the values here are specified in +Hz, to make them independent of actual clock speed and to provide for good +accuracy:) +- nxp,tcea_delay: TCEA_DELAY +- nxp,busy_delay: BUSY_DELAY +- nxp,nand_ta: NAND_TA +- nxp,rd_high: RD_HIGH +- nxp,rd_low: RD_LOW +- nxp,wr_high: WR_HIGH +- nxp,wr_low: WR_LOW + +Optional subnodes: +- Partitions, see Documentation/devicetree/bindings/mtd/partition.txt + +Example: + + mlc: flash@200a8000 { + compatible = "nxp,lpc3220-mlc"; + reg = <0x200A8000 0x11000>; + interrupts = <11 0>; + #address-cells = <1>; + #size-cells = <1>; + + nxp,tcea-delay = <333333333>; + nxp,busy-delay = <10000000>; + nxp,nand-ta = <18181818>; + nxp,rd-high = <31250000>; + nxp,rd-low = <45454545>; + nxp,wr-high = <40000000>; + nxp,wr-low = <83333333>; + gpios = <&gpio 5 19 1>; /* GPO_P3 19, active low */ + + mtd0@00000000 { + label = "boot"; + reg = <0x00000000 0x00064000>; + read-only; + }; + + ... + + }; |