Hi all,
I use "flinfo" to display the nand flash information under uboot prompt, and find that only two sectors are ready-only, but the other sectors could be read-write, why could happen this? I do nothing changes in uboot and on my development board Marvell5182. So I decide to re-load a new u-boot.bin to the boot flash, then reboot the system, and do the same thing as before, but I find that the boot flash has been changed to be read-only too, I don't know why? Could anybody tell?
Here is my print information from superterminal: ----------------------------------------------------------------- Bank # 1: AMD AM29LV040B (4 Mbit, bottom boot sect) Size: 512 kB,Bus Width: 1, device Width: 1. Flash base: 0xff800000,Number of Sectors: 8 Type: REGULAR. Sector Start Addresses: 00000000 (RO) 00010000 (RO) 00020000 (RO) 00030000 (RO) 00040000 (RO) 00050000 (RO) 00060000 (RO) 00070000 (RO)
Bank # 2: INTEL 28F128J3A (128 Mbit) Size: 16 MB,Bus Width: 2, device Width: 2. Flash base: 0xf8000000,Number of Sectors: 128 Type: REGULAR. Sector Start Addresses: 00000000 00020000 (RO) 00040000 (RO) 00060000 00080000 000a0000 000c0000 000e0000 00100000 00120000 00140000 00160000 00180000 001a0000 001c0000 001e0000 00200000 00220000 00240000 00260000 00280000 002a0000 002c0000 002e0000 00300000 00320000 00340000 00360000 00380000 003a0000 003c0000 003e0000 00400000 00420000 00440000 00460000 00480000 004a0000 004c0000 004e0000 00500000 00520000 00540000 00560000 00580000 005a0000 005c0000 005e0000 00600000 00620000 00640000 00660000 00680000 006a0000 006c0000 006e0000 00700000 00720000 00740000 00760000 00780000 007a0000 007c0000 007e0000 00800000 00820000 00840000 00860000 00880000 008a0000 008c0000 008e0000 00900000 00920000 00940000 00960000 00980000 009a0000 009c0000 009e0000 00a00000 00a20000 00a40000 00a60000 00a80000 00aa0000 00ac0000 00ae0000 00b00000 00b20000 00b40000 00b60000 00b80000 00ba0000 00bc0000 00be0000 00c00000 00c20000 00c40000 00c60000 00c80000 00ca0000 00cc0000 00ce0000 00d00000 00d20000 00d40000 00d60000 00d80000 00da0000 00dc0000 00de0000 00e00000 00e20000 00e40000 00e60000 00e80000 00ea0000 00ec0000 00ee0000 00f00000 00f20000 00f40000 00f60000 00f80000 -------------------------- With kind regards, Robert