ARM: dts: omap3-igep: OneNAND support

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>

diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi
index e268efde6c6d36f68ac1a8e5f71a1c0c406b3aff..4ad7d5565906efcb04f29c1c5c795c20f5fa4410 100644 (file)
--- 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 */
@@ -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";
        };
 };