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| author | Ladislav Michl <ladis@linux-mips.org> | 2017-03-17 12:12:00 -0700 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2017-03-17 12:12:00 -0700 |
| commit | 01aa1a5c468b6407d2f5b1d76e27b436b2d3d45f (patch) | |
| tree | b8674f3d87dec1056ee6da78a403f67c90bba896 | |
| parent | a5e743c4ba9cb4a2ded420da9b53b772f7c61b6a (diff) | |
| download | talos-obmc-linux-01aa1a5c468b6407d2f5b1d76e27b436b2d3d45f.tar.gz talos-obmc-linux-01aa1a5c468b6407d2f5b1d76e27b436b2d3d45f.zip | |
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>
| -rw-r--r-- | arch/arm/boot/dts/omap3-igep.dtsi | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/omap3-igep.dtsi b/arch/arm/boot/dts/omap3-igep.dtsi index e268efde6c6d..4ad7d5565906 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 */ @@ -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"; }; }; |
