Hardware Hacks for the LS Pro
All input is welcome. Please do not edit this page directly as I do not want any information to get past me without my knowledge as it could be detrimental to the LS Pro on which I'm experimenting. Please post any comments to the forum thread or the talk page.
This is an account of the attempts of Tampakuro (aka Kuroguy) to open the LS Pro hardware to more development. I'll be concentrating mainly on the flash memory as well as adding an eSATA port.
There are two obvious routes to reprogramming the flash memory:
The Dual flash Method
The JTAG Access Method
Adding an additional hard drive
Adding a second SATA drive to your Linkstation Pro is as simple as installing a 0.01 uF surface mount capacitor at C279, C280, C281, and C282 and then installing the proper Molex connector at CN8. I used a Molex part number xxxxx and held it down with a piece of 18 gage wire soldered over it like a strap. I've atached a photo:
To test this I plugged the hard disk into the new sata port (I didn't have a spare SATA drive). The bootloader would not boot directly to the SATA drive plugged into CN8 so I bbooted the device using TFTP to retrieve the kernel and initrd. Once the device had the kernel and initrd loaded it pivoted to the root filesystem on the SATA drive even though it was attached to the secondary SATA port. I have attached a portion og the DMESG showing the device was recognized:
LS_Pro ~ # dmesg Linux version 188.8.131.52-arm1 (root@Desktop) (gcc version 3.4.4 (release) (CodeSou rcery ARM 2005q3-2)) #76 Sat Nov 25 14:48:39 CST 2006 CPU: ARM926EJ-Sid(wb)  revision 0 (ARMv5TEJ) CPU0: D VIVT write-back cache CPU0: I cache: 32768 bytes, associativity 1, 32 byte lines, 1024 sets CPU0: D cache: 32768 bytes, associativity 1, 32 byte lines, 1024 sets Machine: MV-88fxx81 Using UBoot passing parameters structure Sys Clk = 200000000, Tclk = 166664740 - Warning - This LSP release was tested only with U-Boot release 1.7.3 Memory policy: ECC disabled, Data cache writeback On node 0 totalpages: 32768 DMA zone: 32768 pages, LIFO batch:15 Normal zone: 0 pages, LIFO batch:1 HighMem zone: 0 pages, LIFO batch:1 Built 1 zonelists Kernel command line: console=ttyS0,115200 root=/dev/sda2 rw initrd=0x00800040,15 M panic=5 BOOTVER=1.01 PID hash table entries: 1024 (order: 10, 16384 bytes) Console: colour dummy device 80x30 Dentry cache hash table entries: 32768 (order: 5, 131072 bytes) Inode-cache hash table entries: 16384 (order: 4, 65536 bytes) Memory: 128MB 0MB 0MB 0MB = 128MB total Memory: 110464KB available (3104K code, 517K data, 112K init) Calibrating delay loop... 266.24 BogoMIPS (lpj=1331200) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok checking if image is initramfs...it isn't (no cpio magic); looks like an initrd Freeing initrd memory: 15360K NET: Registered protocol family 16 FLASH boardId = 12 Flash bankwidth 1, base ff800000, size 400000 BUFFALO LS_GL FLASH size 4096[KB] Marvell Development Board (LSP Version 1.7.8_NAS)-- BUFFALO_BOARD_LS_GL Detected Tclk 166664740 and SysClk 200000000 Marvell USB EHCI Host controller #0: c1702bc0 Marvell USB EHCI Host controller #1: c1702980 pexBarOverlapDetect: winNum 2 overlap current 0 mvPexInit:Warning :Bar 2 size is illigal it will be disabled please check Pex and CPU windows configuration PCI: bus0: Fast back to back transfers enabled PCI: bus1: Fast back to back transfers enabled SCSI subsystem initialized usbcore: registered new driver usbfs usbcore: registered new driver hub use IDMA acceleration in copy to/from user buffers. used channels 2 and 3 Done. cesadev_init(c0011304) mvCesaInit: sessions=640, queue=32, pSram=f0000000 Fast Floating Point Emulator V0.9 (c) Peter Teichmann. VFS: Disk quotas dquot_6.5.1 Dquot-cache hash table entries: 1024 (order 0, 4096 bytes) SGI XFS with no debug enabled Initializing Cryptographic API Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled ttyS0 at MMIO 0x0 (irq = 3) is a 16550A ttyS1 at MMIO 0x0 (irq = 4) is a 16550A io scheduler noop registered io scheduler anticipatory registered io scheduler deadline registered io scheduler cfq registered RAMDISK driver initialized: 3 RAM disks of 16384K size 1024 blocksize loop: loaded (max 8 devices) Marvell Gigabit Ethernet Driver 'egiga': o Ethernet descriptors in DRAM o DRAM SW cache-coherency o Checksum offload enabled o Loading network interface ** egiga_init_module (0) 'eth0' Intergrated Sata device found scsi0 : Marvell SCSI to SATA adapter scsi1 : Marvell SCSI to SATA adapter Vendor: WDC Model: WD2500JS-00NCB1 Rev: 10.0 Type: Direct-Access ANSI SCSI revision: 03 SCSI device sda: 488397168 512-byte hdwr sectors (250059 MB) SCSI device sda: drive cache: write back SCSI device sda: 488397168 512-byte hdwr sectors (250059 MB) SCSI device sda: drive cache: write back sda: sda1 sda2 sda3 sda4 Attached scsi disk sda at scsi0, channel 0, id 0, lun 0 Attached scsi generic sg0 at scsi0, channel 0, id 0, lun 0, type 0 physmap flash device: 400000 at ff800000 CFI: Found no phys_mapped_flash device at location zero....