1 * Aspeed Firmware Memory controller
2 * Aspeed SPI Flash Memory Controller
4 The Firmware Memory Controller in the Aspeed AST2500 SoC supports
5 three chip selects, two of which are always of SPI type and the third
6 can be SPI or NOR type flash. These bindings only describe SPI.
8 The two SPI flash memory controllers in the AST2500 each support two
12 - compatible : Should be one of
13 "aspeed,ast2400-fmc" for the AST2400 Firmware Memory Controller
14 "aspeed,ast2400-spi" for the AST2400 SPI Flash memory Controller
15 "aspeed,ast2500-fmc" for the AST2500 Firmware Memory Controller
16 "aspeed,ast2500-spi" for the AST2500 SPI flash memory controllers
18 - reg : the first contains the control register location and length,
19 the second contains the memory window mapping address and length
20 - #address-cells : must be 1 corresponding to chip select child binding
21 - #size-cells : must be 0 corresponding to chip select child binding
24 - interrupts : Should contain the interrupt for the dma device if an
27 The child nodes are the SPI flash modules which must have a compatible
28 property as specified in bindings/mtd/jedec,spi-nor.txt
30 Optionally, the child node can contain properties for SPI mode (may be
32 - spi-max-frequency - max frequency of spi bus
37 compatible = "aspeed,ast2500-fmc";
38 reg = < 0x1e620000 0x94
39 0x20000000 0x02000000 >;
45 compatible = "jedec,spi-nor";
46 /* spi-max-frequency = <>; */