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Other Parts Discussed in Thread: AM3892Hi Miroslav, really appreciate your response. I am also working with same chip and AM3892 on Uboot and Linux kernel side. Uboot: GPMC is connected with Nand flash chip(MT29F16G08ABACAWP). I have already modified gpmc registers w.r.t. timings, but I don't see nand partition in uboot source code. Like I already did this in Linux kernel given below. My question is how is uboot understand nand flash. and Is below given nand partition required or not. #define NAND_BLOCK_SIZE SZ_512K /* All the partition sizes are listed in terms of NAND block size */ static struct mtd_partition ti816x_nand_partitions[] = { { .name = "U-Boot", .offset = 0, /* Offset = 0x0 */ .size = 5 * NAND_BLOCK_SIZE, //19 * NAND_BLOCK_SIZE, }, { .name = "U-Boot Env", .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000