- Freescale General-Purpose Media Interface (GPMI)
The GPMI nand controller provides an interface to control the
NAND flash chips. We support only one NAND chip now.
Required properties:
- compatible : should be “fsl,
-gpmi-nand” - reg : should contain registers location and length for gpmi and bch.
- reg-names: Should contain the reg names “gpmi-nand” and “bch”
- interrupts : BCH interrupt number.
- interrupt-names : Should be “bch”.
- dmas: DMA specifier, consisting of a phandle to DMA controller node
and GPMI DMA channel ID.
Refer to dma.txt and fsl-mxs-dma.txt for details. - dma-names: Must be “rx-tx”.
Optional properties:
- nand-on-flash-bbt: boolean to enable on flash bbt option if not
present false
The device tree may optionally contain sub-nodes describing partitions of the
address space. See partition.txt for more detail.
Examples:
gpmi-nand@8000c000 {
compatible = “fsl,imx28-gpmi-nand”;
#address-cells = <1>;
#size-cells = <1>;
reg = <0x8000c000 2000>, <0x8000a000 2000>;
reg-names = “gpmi-nand”, “bch”;
interrupts = <41>;
interrupt-names = “bch”;
dmas = <&dma_apbh 4>;
dma-names = “rx-tx”;
partition@0 {
...
};
};
