1 * Broadcom BCM2835 SMI driver.
3 SMI or secondary memory interface is a peripheral specific to certain Broadcom
4 SOCs, and is helpful for talking to things like parallel-interface displays
5 and NAND flashes (in fact, most things with a parallel register interface).
8 - compatible: "brcm,bcm2835-smi"
9 - reg: Should contain location and length of SMI registers and SMI clkman regs
10 - interrupts: *the* SMI interrupt.
11 - pinctrl-names: should be "default".
12 - pinctrl-0: the phandle of the gpio pin node.
13 - brcm,smi-clock-source: the clock source for clkman
14 - brcm,smi-clock-divisor: the integer clock divisor for clkman
15 - dmas: the dma controller phandle and the DREQ number (4 on a 2835)
16 - dma-names: the name used by the driver to request its channel.
24 8 data pin configuration:
27 compatible = "brcm,bcm2835-smi";
28 reg = <0x7e600000 0x44>, <0x7e1010b0 0x8>;
30 pinctrl-names = "default";
31 pinctrl-0 = <&smi_pins>;
32 brcm,smi-clock-source = <6>;
33 brcm,smi-clock-divisor = <4>;
41 brcm,pins = <2 3 4 5 6 7 8 9 10 11 12 13 14 15>;
43 brcm,function = <5 5 5 5 5 5 5 5 5 5 5 5 5 5>;
44 /* /CS, /WE and /OE are pulled high, as they are
45 generally active low signals */
46 brcm,pull = <2 2 2 2 2 2 0 0 0 0 0 0 0 0>;