Literati

Hardware

 * CPU: S3C6410 running at 666Mhz
 * Memory: 64MB

NAND (internal flash)
NAND device: Manufacturer ID: 0xec, Chip ID: 0xdc (Samsung NAND 512MiB 3,3V 8-bit) Creating 5 MTD partitions on "NAND 512MiB 3,3V 8-bit": 0x00000000-0x00040000 : "Bootloader" 0x00040000-0x00340000 : "Kernel" 0x00340000-0x00d40000 : "resource" 0x00d40000-0x11140000 : "File System 1" 0x11140000-0x20000000 : "User space"

Datasheets
smdk6410 it looks to be based on this.

LCD quick view

Hardware Mods
Literati Serial port

Kernel testing
Burn Kernel/Booting from SD

dmesg from ygator
Linux version 2.6.24.2 (root@ligang-laptop) (gcc version 4.1.2) #180 Mon Aug 23 00:49:07 CST 2010 CPU: ARMv6-compatible processor [410fb766] revision 6 (ARMv7), cr=00c5387f Machine: SMDK6410 Ignoring unrecognised tag 0x00000000 Memory policy: ECC disabled, Data cache writeback On node 0 totalpages: 16384 DMA zone: 128 pages used for memmap DMA zone: 0 pages reserved DMA zone: 16256 pages, LIFO batch:3 Normal zone: 0 pages used for memmap Movable zone: 0 pages used for memmap CPU S3C6410 (id 0x36410101) S3C6410: core 666.000 MHz, memory 111.000 MHz, peripheral 55.500 MHz S3C6410: EPLL 192.000 MHz S3C64XX Clocks, (c) 2007 Samssung Electronics CPU0: D VIPT write-back cache CPU0: I cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets CPU0: D cache: 16384 bytes, associativity 4, 32 byte lines, 128 sets Built 1 zonelists in Zone order, mobility grouping on. Total pages: 16256 Kernel command line: console=ttySAC0,115200 loglevel=0 ubi.mtd=3 root=ubi0:rootfs rootfstype=ubifs Trying to install chained interrupt handler for IRQ0 Trying to install chained interrupt handler for IRQ1 Trying to install chained interrupt handler for IRQ32 Trying to install chained interrupt handler for IRQ33 PID hash table entries: 256 (order: 8, 1024 bytes) timer tcon=00600900, tcnt 29b0, tcfg 00001919,00000040, usec 000077ee Console: colour dummy device 80x30 console [ttySAC0] enabled Dentry cache hash table entries: 8192 (order: 3, 32768 bytes) Inode-cache hash table entries: 4096 (order: 2, 16384 bytes) Memory: 64MB = 64MB total Memory: 61708KB available (2768K code, 265K data, 104K init) Calibrating delay loop... 665.19 BogoMIPS (lpj=1662976) Mount-cache hash table entries: 512 CPU: Testing write buffer coherency: ok net_namespace: 64 bytes NET: Registered protocol family 16

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===> wifi status change from 0 to 0 S3C6410 Power Management, (c) 2008 Samsung Electronics s3c6410: Initialising architecture S3C DMA-pl080 Controller Driver, (c) 2006-2007 Samsung Electronics Total 32 DMA channels will be initialized. SCSI subsystem initialized usbcore: registered new interface driver usbfs usbcore: registered new interface driver hub usbcore: registered new device driver usb NET: Registered protocol family 2 IP route cache hash table entries: 1024 (order: 0, 4096 bytes) TCP established hash table entries: 2048 (order: 2, 16384 bytes) TCP bind hash table entries: 2048 (order: 1, 8192 bytes) TCP: Hash tables configured (established 2048 bind 2048) TCP reno registered NetWinder Floating Point Emulator V0.97 (double precision) io scheduler noop registered io scheduler anticipatory registered (default) io scheduler deadline registered io scheduler cfq registered S3C_LCD clock got enabled :: 111.000 Mhz LCD TYPE :: LTE480WV will be initialized Window[0] - FB1: map_video_memory: clear ff200000:000bb800 FB1: map_video_memory: dma=53900000 cpu=ff200000 size=000bb800 Console: switching to colour frame buffer device 100x30 fb0: s3cfb frame buffer device s3c_lcd_set_power:1 PWM channel 1 set g_tcnt = 1000, g_tcmp = 480 S3C ADC driver, (c) 2007 Samsung Electronics S3C ADC driver successfully probed ! s3c-uart.0: s3c_serial0 at MMIO 0x7f005000 (irq = 37) is a S3C s3c-uart.1: s3c_serial1 at MMIO 0x7f005400 (irq = 38) is a S3C s3c-uart.2: s3c_serial2 at MMIO 0x7f005800 (irq = 39) is a S3C s3c-uart.3: s3c_serial3 at MMIO 0x7f005c00 (irq = 40) is a S3C RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize loop: module loaded Driver 'sd' needs updating - please use bus_type methods S3C NAND Driver, (c) 2007 Samsung Electronics S3C NAND Driver is using hardware ECC. NAND device: Manufacturer ID: 0xec, Chip ID: 0xdc (Samsung NAND 512MiB 3,3V 8-bit) Creating 5 MTD partitions on "NAND 512MiB 3,3V 8-bit": 0x00000000-0x00040000 : "Bootloader" 0x00040000-0x00340000 : "Kernel" 0x00340000-0x00d40000 : "resource" 0x00d40000-0x11140000 : "File System 1" 0x11140000-0x20000000 : "User space" UBI: attaching mtd3 to ubi0 UBI: physical eraseblock size: 262144 bytes (256 KiB) UBI: logical eraseblock size: 258048 bytes UBI: smallest flash I/O unit: 2048 UBI: VID header offset: 2048 (aligned 2048) UBI: data offset: 4096 UBI: attached mtd3 to ubi0 UBI: MTD device name: "File System 1" UBI: MTD device size: 260 MiB UBI: number of good PEBs: 1040 UBI: number of bad PEBs: 0 UBI: max. allowed volumes: 128 UBI: wear-leveling threshold: 4096 UBI: number of internal volumes: 1 UBI: number of user volumes: 1 UBI: available PEBs: 10 UBI: total number of reserved PEBs: 1030 UBI: number of PEBs reserved for bad PEB handling: 10 UBI: max/mean erase counter: 3/1 ohci_hcd: 2006 August 04 USB 1.1 'Open' Host Controller (OHCI) Driver UBI: background thread "ubi_bgt0d" started, PID 223 usb_host_clk_en otg_phy_init ...................! s3c2410-ohci s3c2410-ohci: S3C OHCI s3c2410-ohci s3c2410-ohci: new USB bus registered, assigned bus number 1 s3c2410-ohci s3c2410-ohci: irq 47, io mem 0x74300000 usb usb1: configuration #1 chosen from 1 choice hub 1-0:1.0: USB hub found hub 1-0:1.0: 1 port detected s3c6410_OTGHCD s3c6410_OTGHCD: S3C6410 OTGHCD s3c6410_OTGHCD s3c6410_OTGHCD: new USB bus registered, assigned bus number 2 s3c6410_OTGHCD s3c6410_OTGHCD: irq 58, io mem 0x7c000000

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==Enter ID_DEVICE Mod===============

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==Enter ID_DEVICE Mod=============== usb usb2: configuration #1 chosen from 1 choice hub 2-0:1.0: USB hub found hub 2-0:1.0: 1 port detected otg_phy_init ...................!

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==Enter ID_DEVICE Mod===============

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==Enter ID_DEVICE Mod=============== otg_phy_init ...................! Loaded s3c-udc version Aug 23 2010 (DMA Mode) input: midfun-keys as /devices/platform/midfun-keys/input/input0 input: s3c-keypad as /devices/platform/s3c-keypad/input/input1 s3c-keypad Initialized S3C Keypad Driver S3C24XX RTC, (c) 2004,2006 Simtec Electronics s3c2410-rtc s3c2410-rtc: rtc disabled, re-enabling s3c2410-rtc s3c2410-rtc: rtc core: registered s3c as rtc0 S3C PWM Driver, (c) 2006-2007 Samsung Electronics i2c /dev entries driver s3c2410-i2c s3c2410-i2c: slave address 0x10 s3c2410-i2c s3c2410-i2c: bus frequency set to 108 KHz s3c2410-i2c s3c2410-i2c: i2c-0: S3C I2C adapter s3c-hsmmc: card inserted. [s3c_hsmmc_probe]: s3c-hsmmc.1: at 0xc5000000 with irq 57. clk src: sclk_DOUTmpll_mmc1 TCP cubic registered NET: Registered protocol family 1 NET: Registered protocol family 17 NET: Registered protocol family 15 ieee80211: 802.11 data/management/control stack, git-1.1.13 ieee80211: Copyright (C) 2004-2005 Intel Corporation  ieee80211_crypt: registered algorithm 'NULL' ieee80211_crypt: registered algorithm 'WEP' ieee80211_crypt: registered algorithm 'CCMP' ieee80211_crypt: registered algorithm 'TKIP' VFP support v0.3: implementor 41 architecture 1 part 20 variant b rev 5 s3c2410-rtc s3c2410-rtc: setting system clock to 2011-02-06 04:43:51 UTC (1296967431) UBIFS: recovery needed UBIFS: recovery completed UBIFS: mounted UBI device 0, volume 0, name "rootfs" UBIFS: file system size: 259854336 bytes (253764 KiB, 247 MiB, 1007 LEBs) UBIFS: journal size: 12902400 bytes (12600 KiB, 12 MiB, 50 LEBs) UBIFS: media format: w4/r0 (latest is w4/r0) UBIFS: default compressor: lzo UBIFS: reserved for root: 4952683 bytes (4836 KiB) VFS: Mounted root (ubifs filesystem). Freeing init memory: 104K UART err int. s3c-nand: 1 bit(s) error detected, corrected successfully s3c-nand: 1 bit(s) error detected, corrected successfully s3c-nand: 1 bit(s) error detected, corrected successfully mmc0: host does not support reading read-only switch. assuming write-enable. mmc0: new SD card at address ebe2 mmcblk0: mmc0:ebe2 SD512 500224KiB mmcblk0: p1 s3c-nand: 1 bit(s) error detected, corrected successfully s3c-nand: 1 bit(s) error detected, corrected successfully s3c-nand: 1 bit(s) error detected, corrected successfully UBI: attaching mtd4 to ubi1 UBI: physical eraseblock size: 262144 bytes (256 KiB) UBI: logical eraseblock size: 258048 bytes UBI: smallest flash I/O unit: 2048 UBI: VID header offset: 2048 (aligned 2048) UBI: data offset: 4096 UBI: attached mtd4 to ubi1 UBI: MTD device name: "User space" UBI: MTD device size: 238 MiB UBI: number of good PEBs: 955 UBI: number of bad PEBs: 0 UBI: max. allowed volumes: 128 UBI: wear-leveling threshold: 4096 UBI: number of internal volumes: 1 UBI: number of user volumes: 1 UBI: available PEBs: 0 UBI: total number of reserved PEBs: 955 UBI: number of PEBs reserved for bad PEB handling: 9 UBI: max/mean erase counter: 2/1 UBI: background thread "ubi_bgt1d" started, PID 500 UBIFS: recovery needed UBIFS: recovery completed UBIFS: mounted UBI device 1, volume 0, name "ubifs1" UBIFS: file system size: 240758784 bytes (235116 KiB, 229 MiB, 933 LEBs) UBIFS: journal size: 12128256 bytes (11844 KiB, 11 MiB, 47 LEBs) UBIFS: media format: w4/r0 (latest is w4/r0) UBIFS: default compressor: lzo UBIFS: reserved for root: 4952683 bytes (4836 KiB) usbcore: registered new interface driver usbhid drivers/hid/usbhid/hid-core.c: v2.6:USB HID core driver s3c-nand: 1 bit(s) error detected, corrected successfully s3c-nand: 1 bit(s) error detected, corrected successfully Adding 64492k swap on /mnt/swap/actual_swap. Priority:-1 extents:1 across:64492k usb 1-1: new full speed USB device using s3c2410-ohci and address 2 usb 1-1: not running at top speed; connect to a high speed hub usb 1-1: configuration #1 chosen from 1 choice

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===> wifi status change from 0 to 1 rtusb init --->

pAd = c4f01000, size = 439728
RTMPAllocAdapterBlock, Status=0 usbcore: registered new interface driver rt2870 RTMPAllocTxRxRingMemory, Status=0 -->RTUSBVenderReset RTUSBVenderReset Key1Str is Invalid key length(0) or Type(0) Key2Str is Invalid key length(0) or Type(0) Key3Str is Invalid key length(0) or Type(0) Key4Str is Invalid key length(0) or Type(0) 1. Phy Mode = 0 2. Phy Mode = 0 NVM is Efuse and its size =2d[2d0-2fc] 3. Phy Mode = 0 RTMPSetPhyMode: channel is out of range, use first channel=1 == rt28xx_init, Status=0 0x1300 = 00073200 s3c_lcd_set_power:1 PWM channel 1 set g_tcnt = 1000, g_tcmp = 96 Terminate the task(RtmpMlmeTask) with pid(559)! Terminate the task(RtmpCmdQTask) with pid(560)! Terminate the task(RtmpTimerTask) with pid(558)! ---> RTMPFreeTxRxRingMemory - RTMPFreeTxRxRingMemory

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===> wifi status change from 1 to 0 usb 1-1: USB disconnect, address 2 rtusb_disconnect: unregister usbnet usb-s3c24xx-1 RtmpOSNetDevDetach: RtmpOSNetDeviceDetach, dev->name=ra0! RTUSB disconnect successfully

JTAG
I was inspecting my literati (sunway) PCB today and I think I may have found the JTAG pads for the board. I know that the Samsung S3C6410 CPU is well supported by OpenOCD and the Olimex ARM USB JTAG adapter. The only question is, did the manufacturer expose the JTAG port? Since the literati was destined to be a mass market, super cheap, ereader, I guessed that the JTAG port would be a series of plated pads to be used by a "bed of nails" type of connection that can be connected to via some robot/automation. While looking at the underside of the main CPU board, I spotted the CPU and then looked around it for possible JTAG pads. Sure enough, just to the right of the CPU (from the back of the unit) there are eight pads close together. BINGO! I'm willing to bet a sixpack of beer that it is the JTAG port.

Here's a photo:



And another:



more detail photos might be had using some of the PCB Pictures recommendations