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@xxxxxxxxxxxxxx>
---
arch/arm/boot/dts/omap3-igep.dtsi | 52 +++++++++++++++++++++++++++++++++++++++
1 file changed, 52 insertions(+)
diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi
index e268efde6c6d..f75cbf297798 100644
--- a/arch/arm/boot/dts/omap3-igep.dtsi
+++ b/arch/arm/boot/dts/omap3-igep.dtsi
@@ -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 */
@@ -124,8 +134,50 @@
gpmc,wr-access-ns = <40>;
gpmc,wr-data-mux-bus-ns = <0>;
+ #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";
};
};
--
2.11.0
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