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ARM: dts: omap3-igep: OneNAND support

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Add OneNAND node for IGEP and leave it disabled by default. It is up
to bootloader to enable proper node. Timing just works, but values are
copied over from N900 as I was unable to find chip datasheet.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Ladislav Michl 2017-03-17 12:12:00 -07:00 committed by Tony Lindgren
parent a5e743c4ba
commit 01aa1a5c46
1 changed files with 52 additions and 0 deletions
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52
arch/arm/boot/dts/omap3-igep.dtsi
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@ -37,6 +37,13 @@
};
&omap3_pmx_core {
gpmc_pins: pinmux_gpmc_pins {
pinctrl-single,pins = <
/* OneNAND seems to require PIN_INPUT on clock. */
OMAP3_CORE1_IOPAD(0x20be, PIN_INPUT | MUX_MODE0) /* gpmc_clk.gpmc_clk */
>;
};
uart1_pins: pinmux_uart1_pins {
pinctrl-single,pins = <
OMAP3_CORE1_IOPAD(0x2182, PIN_INPUT | MUX_MODE0) /* uart1_rx.uart1_rx */
@ -98,6 +105,9 @@
};
&gpmc {
pinctrl-names = "default";
pinctrl-0 = <&gpmc_pins>;
nand@0,0 {
compatible = "ti,omap2-nand";
reg = <0 0 4>; /* CS0, offset 0, IO size 4 */
@ -126,6 +136,48 @@
#address-cells = <1>;
#size-cells = <1>;
status = "okay";
};
onenand@0,0 {
compatible = "ti,omap2-onenand";
reg = <0 0 0x20000>; /* CS0, offset 0, IO size 128K */
gpmc,sync-read;
gpmc,sync-write;
gpmc,burst-length = <16>;
gpmc,burst-read;
gpmc,burst-wrap;
gpmc,burst-write;
gpmc,device-width = <2>; /* GPMC_DEVWIDTH_16BIT */
gpmc,mux-add-data = <2>; /* GPMC_MUX_AD */
gpmc,cs-on-ns = <0>;
gpmc,cs-rd-off-ns = <87>;
gpmc,cs-wr-off-ns = <87>;
gpmc,adv-on-ns = <0>;
gpmc,adv-rd-off-ns = <10>;
gpmc,adv-wr-off-ns = <10>;
gpmc,oe-on-ns = <15>;
gpmc,oe-off-ns = <87>;
gpmc,we-on-ns = <0>;
gpmc,we-off-ns = <87>;
gpmc,rd-cycle-ns = <112>;
gpmc,wr-cycle-ns = <112>;
gpmc,access-ns = <81>;
gpmc,page-burst-access-ns = <15>;
gpmc,bus-turnaround-ns = <0>;
gpmc,cycle2cycle-delay-ns = <0>;
gpmc,wait-monitoring-ns = <0>;
gpmc,clk-activation-ns = <5>;
gpmc,wr-data-mux-bus-ns = <30>;
gpmc,wr-access-ns = <81>;
gpmc,sync-clk-ps = <15000>;
#address-cells = <1>;
#size-cells = <1>;
status = "disabled";
};
};