threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
51 lines
1.2 KiB
Plaintext
51 lines
1.2 KiB
Plaintext
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;
|
|
};
|
|
|
|
...
|
|
|
|
};
|