Hi All,
I'm using AM3352, Linux 3.14.26 and trying to concatenate two NAND chips into single MTD partition using device tree. My device tree entry is:
&gpmc {
ranges = <1 0 0x28000000 0x40000000
2 0 0x68000000 0x40000000
>;
nand@1,0 {
reg = <1 0 0x40000000 /* CS1 */
2 0 0x40000000 /* CS2 */
>;
nand-bus-width = <8>;
ti,nand-ecc-opt = "bch8";
ti,nand-xfer-type = "polled";
ti,elm-id = <&elm>;
gpmc,device-width = <1>;
gpmc,sync-clk-ps = <0>;
gpmc,cs-on-ns = <0>;
gpmc,cs-rd-off-ns = <40>;
gpmc,cs-wr-off-ns = <40>;
gpmc,adv-on-ns = <0>;
gpmc,adv-rd-off-ns = <40>;
gpmc,adv-wr-off-ns = <40>;
gmpc,we-on-ns = <0>;
gpmc,we-off-ns = <20>;
gpmc,oe-on-ns = <0>;
gpmc,oe-off-ns = <20>;
gpmc,access-ns = <30>;
gpmc,rd-cycle-ns = <40>;
gpmc,wr-cycle-ns = <40>;
gpmc,wait-on-read = "true";
gpmc,wait-on-write = "true";
gpmc,bus-turnaround-ns = <0>;
gpmc,cycle2cycle-delay-ns = <90>;
gpmc,clk-activation-ns = <0>;
gpmc,wait-monitoring-ns = <0>;
gpmc,wr-access-ns = <40>;
gpmc,wr-data-mux-bus-ns = <0>;
#address-cells = <1>;
#size-cells = <1>;
partition@0 {
label = "data";
reg = <0 0x80000000>;
};
};
};
During boot I see:
[ 2.087239] nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xd3
[ 2.094000] nand: Micron MT29F8G08ADADAH4
[ 2.098223] nand: 1024MiB, SLC, page size: 2048, OOB size: 64
[ 2.104286] nand: using OMAP_ECC_BCH8_CODE_HW ECC scheme
[ 2.110026] 1 ofpart partitions found on MTD device omap2-nand.1
[ 2.116352] Creating 1 MTD partitions on "omap2-nand.1":
[ 2.121977] 0x000000000000-0x000080000000 : "data"
[ 2.127020] mtd: partition "data" extends beyond the end of device "omap2-nand.1" -- size truncated to 0x40000000
Only 1 chip is being probed. Note, if I put each chip in its own nand device tree node, both chips are probed.
Has anyone concatenated
