Re: [PATCH 2/3] ARM: dts: am335x: Add DTS for ChiliSOM module
From: Tony Lindgren
Date: Mon Mar 16 2015 - 16:55:08 EST
* Rostislav Lisovy <lisovy@xxxxxxxxx> [150209 06:51]:
> Since this is a SOM (System on Module) that will be part
> of another embedded board (and can't really exist on its own)
> define it as a "dtsi" that will be included in the Device tree
> describing the whole system later on.
>
> Hardware specification:
> * AM335x SoC
> * up to 512 MB RAM
> * NAND Flash (8x interface, cs0)
> * UART0
> * PMIC
> * I2C0 (for PMIC)
> * 1x Ethernet MAC
Applying all three into omap-for-v4.1/dt with one change
below.
> --- /dev/null
> +++ b/arch/arm/boot/dts/am335x-chilisom.dtsi
> +
> +&gpmc {
> + status = "okay";
> + pinctrl-names = "default";
> + pinctrl-0 = <&nandflash_pins>;
> + ranges = <0 0 0x08000000 0x01000000>; /* CS0 0 @addr 0x08000000, size 0x01000000 */
> + nand@0,0 {
> + reg = <0 0 0x01000000>; /* CS0 */
I've changed this to say just:
reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
As for NAND the device has just one IO register. The 0x01000000
is the size of a minimum GPMC partition.
Regards,
Tony
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