I have recently modded a Netgear RN102 NAND flash from 128 MB to 4096 MB (Samsung k9gbg08u0a) but i have a problem with NAND initialization. I can boot with kwboot which is unique for Armada CPU's.

Here is my log from kwboot with my stock mtd0:

root@whitepawnxeon:/home/jigsaw/Downloads# kwboot -t -B 115200 /dev/ttyUSB0 -b mtd0stockuboot.img -p Sending boot message. Please reboot the target...- Sending boot image... 0 % [......................................................................] 0 % [......................................................................] 1 % [......................................................................] 1 % [......................................................................] 2 % [......................................................................] 2 % [......................................................................] 3 % [......................................................................] 3 % [......................................................................] 4 % [......................................................................] 5 % [.........

General initialization - Version: 1.0.0

High speed PHY - Version: 2.1.4 (COM-PHY-V20) Update PEX Device ID 0x6710 High speed PHY - Ended Successfully 0000 DDR3 Training Sequence - Ver 5.7.1 DDR3 Training Sequence - Run without PBS. DDR3 Training Sequence - Ended Successfully .............................................................] 5 % [......................................................................] 6 % [......................................................................] 6 % [......................................................................] 7 % [......................................................................] 7 % [......................................................................] 8 % [......................................................................] 9 % [......................................................................] 9 % [......................................................................] 10 % [......................................................................] 10 % [......................................................................] 11 % [......................................................................] 11 % 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__ __ _ _ | / | __ _ _ ____ _____| | | | |/| |/ _` | '__\ \ / / _ \ | | | | | | (_| | | \ V / __/ | | |_| |_|__,_|_| _/ ___|_|_| _ _ ____ _ | | | | | __ ) ___ ___ | |_ | | | |___| _ \ / _ \ / _ | __| | |_| |___| |_) | (_) | (_) | |_ ___/ |____/ ___/ ___/ __| ** LOADER **

U-Boot 2011.12-gec25d27-dirty (Oct 26 2015 - 16:53:05) Marvell version: v2011.12 2014_T2.0p1 06/23/2015 ReadyNAS-102 V2.0

Board: DB-88F6710-BP SoC: MV6710 A1 CPU: Marvell PJ4B v7 UP (Rev 1) LE CPU @ 1200 [MHz] L2 @ 600 [MHz] TClock @ 200 [MHz] DDR @ 600 [MHz] DDR 16Bit Width, FastPath Memory Access DRAM: 512 MiB

Map: Code: 0x1feef000:0x1ff9ef34 BSS: 0x1ffef0a0 Stack: 0x1f9eeef8 Heap: 0x1f9ef000:0x1feef000

NAND: (ID 0xd7ec) nand_get_flash_type: second ID read did not match ac,d7 against ec,52 No NAND device found!!! 0 MiB MMC: MRVL_MMC: 0 *** Warning - readenv() failed, using default environment

Initialize and scan all PCI interfaces PEX unit.port(active IF[-first bus]): ------------------------------------------ PEX 0: Root Complex Interface, Detected Link X1, GEN 2.0 PEX 1: Root Complex Interface, Detected Link X1, GEN 2.0 FPU not initialized USB 0: Host Mode USB 1: Host Mode Shutting down unused interfaces: GBE0 SDIO AUDIO TDM Modules/Interfaces Detected: RGMII1 Phy PEX0 (Lane 0) PEX1 (Lane 1) SATA0 (Lane 2) SATA1 (Lane 3) Net: , egiga1 [PRIME] Detect MVT/MP board... Saving Environment to NAND... Erasing Nand... Attempt to erase non page aligned data Power On!

Updating env to v3... Saving Environment to NAND... Erasing Nand... Attempt to erase non page aligned data raise: Signal # 8 caught raise: Signal # 8 caught

__ __ _ _ | / | __ _ _ ____ _____| | | | |/| |/ _` | '__\ \ / / _ \ | | | | | | (_| | | \ V / __/ | | |_| |_|__,_|_| _/ ___|_|_| _ _ ____ _ | | | | | __ ) ___ ___ | |_ | | | |___| _ \ / _ \ / _ | __| | |_| |___| |_) | (_) | (_) | |_ ___/ |____/ ___/ ___/ __| ** LOADER **

U-Boot 2011.12-gec25d27-dirty (Oct 26 2015 - 16:53:05) Marvell version: v2011.12 2014_T2.0p1 06/23/2015 ReadyNAS-102 V2.0

Board: DB-88F6710-BP SoC: MV6710 A1 CPU: Marvell PJ4B v7 UP (Rev 1) LE CPU @ 1200 [MHz] L2 @ 600 [MHz] TClock @ 200 [MHz] DDR @ 600 [MHz] DDR 16Bit Width, FastPath Memory Access DRAM: 512 MiB

Map: Code: 0x1feef000:0x1ff9ef34 BSS: 0x1ffef0a0 Stack: 0x1f9eeef8 Heap: 0x1f9ef000:0x1feef000

NAND: (ID 0xd7ec) nand_get_flash_type: second ID read did not match ac,d7 against ec,53 No NAND device found!!! 0 MiB MMC: MRVL_MMC: 0 *** Warning - readenv() failed, using default environment

Initialize and scan all PCI interfaces PEX unit.port(active IF[-first bus]): ------------------------------------------ PEX 0: Root Complex Interface, Detected Link X1, GEN 2.0 PEX 1: Root Complex Interface, Detected Link X1, GEN 2.0 FPU not initialized USB 0: Host Mode USB 1: Host Mode Shutting down unused interfaces: GBE0 SDIO AUDIO TDM Modules/Interfaces Detected: RGMII1 Phy PEX0 (Lane 0) PEX1 (Lane 1) SATA0 (Lane 2) SATA1 (Lane 3) Net: , egiga1 [PRIME] Detect MVT/MP board... Saving Environment to NAND... Erasing Nand... Attempt to erase non page aligned data Power On!

Updating env to v3... Saving Environment to NAND... Erasing Nand... Attempt to erase non page aligned data raise: Signal # 8 caught raise: Signal # 8 caught

__ __ _ _ | / | __ _ _ ____ _____| | | | |/| |/ _` | '__\ \ / / _ \ | | | | | | (_| | | \ V / __/ | | |_| |_|__,_|_| _/ ___|_|_| _ _ ____ _ | | | | | __ ) ___ ___ | |_ | | | |___| _ \ / _ \ / _ | __| | |_| |___| |_) | (_) | (_) | |_ ___/ |____/ ___/ ___/ __| ** LOADER **

U-Boot 2011.12-gec25d27-dirty (Oct 26 2015 - 16:53:05) Marvell version: v2011.12 2014_T2.0p1 06/23/2015 ReadyNAS-102 V2.0

Board: DB-88F6710-BP SoC: MV6710 A1 CPU: Marvell PJ4B v7 UP (Rev 1) LE CPU @ 1200 [MHz] L2 @ 600 [MHz] TClock @ 200 [MHz] DDR @ 600 [MHz] DDR 16Bit Width, FastPath Memory Access DRAM: 512 MiB

Map: Code: 0x1feef000:0x1ff9ef34 BSS: 0x1ffef0a0 Stack: 0x1f9eeef8 Heap: 0x1f9ef000:0x1feef000

NAND: (ID 0xd7ec) nand_get_flash_type: second ID read did not match ac,d7 against ec,53 No NAND device found!!! 0 MiB MMC: MRVL_MMC: 0 *** Warning - readenv() failed, using default environment

Initialize and scan all PCI interfaces PEX unit.port(active IF[-first bus]): ------------------------------------------ PEX 0: Root Complex Interface, Detected Link X1, GEN 2.0 PEX 1: Root Complex Interface, Detected Link X1, GEN 2.0 FPU not initialized USB 0: Host Mode USB 1: Host Mode Shutting down unused interfaces: GBE0 SDIO AUDIO TDM Modules/Interfaces Detected: RGMII1 Phy PEX0 (Lane 0) PEX1 (Lane 1) SATA0 (Lane 2) SATA1 (Lane 3) Net: , egiga1 [PRIME]

As you can see u-boot sees device id and manufacturer id but cannot recognize it.My stock u-boot is very old and i get u-boot source code from Netgear GPL.(ReadyNASOS_V6.6.0_WW_src.zip) In here https://forum.doozan.com/read.php?2,106589,108204#msg-108204 you can see my whole story about this device. Can someone suggest any solution?