Some Overo COM models include NAND flash in the on-board package-on-package (PoP) chip. Add this to the base Overo devicetree.
Most commonly, this is 512MB NAND from the Micron MT29C4G96MAZ family but, as discussed [1], several different sized are possible. To support different sizes, the last partition should fill to the end of the chip (i.e. MTDPART_SIZ_FULL). With thanks to Florian Vaussard for the original patch [2] and Adam Lee for updating it here. Signed-off-by: Ash Charles <ashchar...@gmail.com> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2013-June/175760.html [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2013-June/175449.html --- arch/arm/boot/dts/omap3-overo-base.dtsi | 51 +++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) diff --git a/arch/arm/boot/dts/omap3-overo-base.dtsi b/arch/arm/boot/dts/omap3-overo-base.dtsi index 029e5feb65b4..28430f1596f2 100644 --- a/arch/arm/boot/dts/omap3-overo-base.dtsi +++ b/arch/arm/boot/dts/omap3-overo-base.dtsi @@ -222,3 +222,54 @@ status = "okay"; }; +&gpmc { + ranges = <0 0 0x00000000 0x20000000>; + + nand@0,0 { + linux,mtd-name= "micron,mt29c4g96maz"; + reg = <0 0 0>; + nand-bus-width = <16>; + gpmc,device-width = <2>; + ti,nand-ecc-opt = "bch8"; + + gpmc,sync-clk-ps = <0>; + gpmc,cs-on-ns = <0>; + gpmc,cs-rd-off-ns = <44>; + gpmc,cs-wr-off-ns = <44>; + gpmc,adv-on-ns = <6>; + gpmc,adv-rd-off-ns = <34>; + gpmc,adv-wr-off-ns = <44>; + gpmc,we-off-ns = <40>; + gpmc,oe-off-ns = <54>; + gpmc,access-ns = <64>; + gpmc,rd-cycle-ns = <82>; + gpmc,wr-cycle-ns = <82>; + gpmc,wr-access-ns = <40>; + gpmc,wr-data-mux-bus-ns = <0>; + + #address-cells = <1>; + #size-cells = <1>; + + partition@0 { + label = "SPL"; + reg = <0 0x80000>; /* 512KiB */ + }; + partition@80000 { + label = "U-Boot"; + reg = <0x80000 0x1C0000>; /* 1792KiB */ + }; + partition@1c0000 { + label = "Environment"; + reg = <0x240000 0x40000>; /* 256KiB */ + }; + partition@280000 { + label = "Kernel"; + reg = <0x280000 0x800000>; /* 8192KiB */ + }; + partition@780000 { + label = "Filesystem"; + reg = <0xA80000 0>; + /* HACK: MTDPART_SIZ_FULL=0 so fill to end */ + }; + }; +}; -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
