ARM: dts: overo: Support PoP NAND
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. [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 Signed-off-by: Ash Charles <ashcharles@gmail.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
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@ -221,3 +221,55 @@
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&mcbsp2 {
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status = "okay";
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};
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&gpmc {
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ranges = <0 0 0x00000000 0x20000000>;
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nand@0,0 {
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linux,mtd-name= "micron,mt29c4g96maz";
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reg = <0 0 0>;
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nand-bus-width = <16>;
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gpmc,device-width = <2>;
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ti,nand-ecc-opt = "bch8";
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gpmc,sync-clk-ps = <0>;
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gpmc,cs-on-ns = <0>;
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gpmc,cs-rd-off-ns = <44>;
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gpmc,cs-wr-off-ns = <44>;
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gpmc,adv-on-ns = <6>;
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gpmc,adv-rd-off-ns = <34>;
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gpmc,adv-wr-off-ns = <44>;
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gpmc,we-off-ns = <40>;
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gpmc,oe-off-ns = <54>;
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gpmc,access-ns = <64>;
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gpmc,rd-cycle-ns = <82>;
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gpmc,wr-cycle-ns = <82>;
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gpmc,wr-access-ns = <40>;
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gpmc,wr-data-mux-bus-ns = <0>;
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#address-cells = <1>;
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#size-cells = <1>;
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partition@0 {
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label = "SPL";
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reg = <0 0x80000>; /* 512KiB */
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};
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partition@80000 {
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label = "U-Boot";
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reg = <0x80000 0x1C0000>; /* 1792KiB */
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};
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partition@1c0000 {
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label = "Environment";
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reg = <0x240000 0x40000>; /* 256KiB */
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};
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partition@280000 {
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label = "Kernel";
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reg = <0x280000 0x800000>; /* 8192KiB */
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};
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partition@780000 {
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label = "Filesystem";
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reg = <0xA80000 0>;
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/* HACK: MTDPART_SIZ_FULL=0 so fill to end */
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};
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};
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};
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