Intellus LSDK README File

jjPlus Corp. Copyright 2010

This README offers additional instructions to build the embedded linux
operating system image for the Intellus embedded platform series, an Atheros PB42
reference design variant.  Please contact Atheros or an Atheros distributor for
more information about the PB42 LSDK reference design distribution.

Note: Redboot should be upgraded. Please see "Updating the Redboot Flash Image" section.


___ Top Level Build Files to Prepare the Build Tree ___

The Intellus LSDK distribution is available in two files, a base archive and an
archive of optional binary drivers and images. The distribution is based on the 
Atheros LSDK-pb42fus-7.3.0.429 release.  The kernel version is 2.6.15.

The modifications for the Intellus embedded platform series add platform build type,
ja73pf, ja76pf, ja76pf2 and ja76pf2hx which includes support for:

  - AR8216 10/100M PHY switch
  - AR8316 10/100/1000M PHY switch
  - LM75A temperature controlled chassis fan
  - factory reset and WPS GPIO support
  - Firmware Upgrade support
  - MD5-crypt password for the http interface


___ Building the Firmware ____

The build process consists of uncompressing the distribution files and running
the make utility in the build directory.

>tar -zxf LSDK-intellus-7.3.0.429.tar.gz
>tar -zxf LSDK-WLAN-intellus-7.3.0.429.tar.gz
>cd LSDK-intellus-7.3.0.429/build
>make

A clean build of the tool chain, kernel and all file system components takes approximately 
20 minutes on a 2GHz Intel Core2 Duo T7300 w/ 2GB DDR2.

___ Building the Firmware in 64-bit Linux ___

The prebuilt binaries are built for 32-bit. To build successfully,"ia32" package is necessary.
On a Ubuntu machine, please follow the command below. 

~ $ sudo apt-get install ia32


___ Building the Firmware with older gcc ___

The GCC should be equal or under 4.1, if the GCC is too new. Please install older gcc. GCC-4.1
is recommended.

~ $ sudo apt-get install gcc-4.1

To use older gcc to build, a file "site.mk" should be included to the Makefile.

>cd LSDK-intellus-7.3.0.429/build
>echo "HOSTCC = gcc-4.1" > site.mk
>make clean ; make


___ Intellus Firmware Images ___

The kernel and file system image files are located in the directory
LSDK-ja73pf-7.3.0.429/images/intellus:
    |
    | - intellus_routing-jffs2 - file system image
    | - INTELLUS-update.img    - firmware image for http upgrade   
    | - redboot-ja73pf.bin     - RAM boot loader image for JA73PF
    | - redboot-ja73pf.rom     - flash ROM boot loader image for JA73PF
    | - redboot-ja76pf.bin     - RAM boot loader image for JA76PF
    | - redboot-ja76pf.rom     - flash ROM boot loader image for JA76PF
    | - redboot-ja76pf2.bin    - RAM boot loader image for JA76PF2
    | - redboot-ja76pf2.rom    - flash ROM boot loader image for JA76PF2
    | - redboot-ja76pf2hx.bin  - RAM boot loader image for JA76PF2HX
    | - redboot-ja76pf2hx.rom  - flash ROM boot loader image for JA76PF2HX
    | - vmlinux_routing.bin.gz - Linux kernel image
    | - vmlinux_routing.info   - Linux kernel load address and entry point informations

The RAM boot loader image is included for JTAG loading on a non-bootable device.
 
The flash partition table for the JA73PF and JA76PF is below.

    RedBoot> fis list
    Name              FLASH addr  Mem addr    Length      Entry point
    RedBoot           0xBF000000  0xBF000000  0x00040000  0x00000000
    vmlinux           0xBF040000  0x80060000  0x00160000  0x80060000
    filesystem        0xBF1A0000  0x80051400  0x005C0000  0x80051400
    caldata           0xBF760000  0xBF760000  0x00080000  0x80500000
    FIS directory     0xBF7E0000  0xBF7E0000  0x0000F000  0x00000000
    RedBoot config    0xBF7EF000  0xBF7EF000  0x00001000  0x00000000

The flash partition table for the JA76PF2 and JA76PF2HX is below.

    RedBoot> fis list
    Name              FLASH addr  Mem addr    Length      Entry point
    RedBoot           0xBF000000  0xBF000000  0x00040000  0x00000000
    vmlinux           0xBF040000  0x80060000  0x00160000  0x80060000
    filesystem        0xBF1A0000  0x80051400  0x00DC0000  0x80051400
    caldata           0xBF760000  0xBFF60000  0x00080000  0x80500000
    FIS directory     0xBF7E0000  0xBFFE0000  0x0000F000  0x00000000
    RedBoot config    0xBF7EF000  0xBFFEF000  0x00001000  0x00000000

The caldata partition holds the network platform operation settings.


___ Installing the Firmware on the Intellus ___

The compressed kernel and jffs2 file system images are programmed to the flash
using redboot flash image system (fis) commands. Redboot uses tftp transfer
protocol for image retrieval.

The default network settings for the JA73PF redboot configuration are:
    Local IP address: 192.168.1.2
    Local IP address mask: 255.255.255.0
    Default server IP address: 192.168.1.1

If a different local or default server IP is required for the LAN, it will be
necessary to change the values using fconfig and rebooting for the changes to
take effect.

The following steps will reprogram the kernel and file system images on JA73PF and JA76PF.
    
    RedBoot> fis delete vmlinux
    Delete image 'vmlinux' - continue (y/n)? y
    ... Erase from 0xbf040000-0xbf1a0000: ......................
    ... Erase from 0xbf7e0000-0xbf7f0000: .
    ... Program from 0x80ff0000-0x81000000 at 0xbf7e0000: .
    RedBoot> fis delete filesystem
    Delete image 'filesystem' - continue (y/n)? y
    ... Erase from 0xbf1a0000-0xbf760000: ............................................................................................
    ... Erase from 0xbf7e0000-0xbf7f0000: .
    ... Program from 0x80ff0000-0x81000000 at 0xbf7e0000: .
    RedBoot> load -r -b 0x80500000 vmlinux_routing.bin.gz
    Using default protocol (TFTP)
    Raw file loaded 0x80500000-0x80644fd5, assumed entry at 0x80500000
    RedBoot> fis create -e 0x80060000 -r 0x80060000 -l 0x160000 vmlinux
    ... Erase from 0xbf040000-0xbf1a0000: ......................
    ... Program from 0x80500000-0x80644fd6 at 0xbf040000: .....................
    ... Erase from 0xbf7e0000-0xbf7f0000: .
    ... Program from 0x80ff0000-0x81000000 at 0xbf7e0000: .
    RedBoot> load -r -b 0x80500000 intellus_routing-jffs2
    Using default protocol (TFTP)
    Raw file loaded 0x80500000-0x80abffff, assumed entry at 0x80500000
    RedBoot> fis create -b 0x80500000 -e 0 -l 0x5c0000 filesystem
    ... Erase from 0xbf1a0000-0xbf760000: ............................................................................................
    ... Program from 0x80500000-0x80ac0000 at 0xbf1a0000: ............................................................................
    ................
    ... Erase from 0xbf7e0000-0xbf7f0000: .
    ... Program from 0x80ff0000-0x81000000 at 0xbf7e0000: .


The following steps will reprogram the kernel and file system images on JA76PF2 and JA76PF2HX.

    RedBoot> fis delete vmlinux
    Delete image 'vmlinux' - continue (y/n)? y
    ... Erase from 0xbf040000-0xbf1a0000: ......................
    ... Erase from 0xbffe0000-0xbfff0000: .
    ... Program from 0x80ff0000-0x81000000 at 0xbffe0000: .
    RedBoot> fis delete filesystem
    Delete image 'filesystem' - continue (y/n)? y
    ... Erase from 0xbf1a0000-0xbff60000: ............................................................................................
    ... Erase from 0xbffe0000-0xbfff0000: .
    ... Program from 0x80ff0000-0x81000000 at 0xbf7e0000: .
    RedBoot> load -r -b 0x80500000 vmlinux_routing.bin.gz
    Using default protocol (TFTP)
    Raw file loaded 0x80500000-0x80644fd5, assumed entry at 0x80500000
    RedBoot> fis create -e 0x80060000 -r 0x80060000 -l 0x160000 vmlinux
    ... Erase from 0xbf040000-0xbf1a0000: ......................
    ... Program from 0x80500000-0x80644fd6 at 0xbf040000: .....................
    ... Erase from 0xbffe0000-0xbfff0000: .
    ... Program from 0x80ff0000-0x81000000 at 0xbffe0000: .
    RedBoot> load -r -b 0x80500000 intellus_routing-jffs2
    Using default protocol (TFTP)
    Raw file loaded 0x80500000-0x80abffff, assumed entry at 0x80500000
    RedBoot> fis create -b 0x80500000 -e 0 -l 0xdc0000 filesystem
    ... Erase from 0xbf1a0000-0xbff60000: ............................................................................................
    ... Program from 0x80500000-0x80ac0000 at 0xbf1a0000: ............................................................................
    ................
    ... Erase from 0xbffe0000-0xbfff0000: .
    ... Program from 0x80ff0000-0x81000000 at 0xbffe0000: .


___ Updating the Redboot Flash Image ___

The boot loader should require few to no upgrades.  However the
instructions below show the steps to upgrade the boot loader.  The boot loader
loads itself into RAM on startup, therefore it is not necessary to load a RAM
image as a step in the boot loader reprogramming.  The RAM image is included
for JTAG loading on a non-bootable device.

Below is the steps to update the ROM flash.  The redboot-[platform_name].rom 
image must first be copied to a tftp server directory.

Note: The boot script may need to be canceled when starting the RAM image
      using CTRL-C before proceeding with the update.

The following steps will reprogram the Redboot on JA73PF. Change the ROM image
name when using other platform.

    RedBoot> load -r -b 0x80600000 redboot-ja73pf.rom
    Using default protocol (TFTP)
    Raw file loaded 0x80600000-0x8063fc0f, assumed entry at 0x80600000
    RedBoot> fis write -b 0x80600000 -f 0xbf000000 -l 0x40000
    * CAUTION * about to program FLASH
                at 0xbf000000..0xbf03ffff from 0x80600000 - continue (y/n)? y
    ... Erase from 0xbf000000-0xbf040000: ....
    ... Program from 0x80600000-0x80640000 at 0xbf000000: ....
    RedBoot>


___ OpenOCD JTAG Support ___

The distribution includes modifications to support JTAG image loading to RAM.
JTAG ram image loading of redboot-[platform_name].bin has been tested with 
OpenOCD (0.4.0 or newer) using an Olimex ARM-USB-TINY jtag interface. [1] 
The configuration file to support OpenOCD for the Intellus platforms is located
in LSDK-ja73pf-7.3.0.429/openocd and the Win32 executable binary is located in
LSDK-ja73pf-7.3.0.429/openocd/win32. OpenOCD release 0.4.0 or newer includes a
patch to speed-up the file transfer time for mips processors.


A successful jtag ram image upload is show below.

    >cd LSDK-ja73pf-7.3.0.429/openocd
    >openocd -f interface/olimex-jtag-tiny.cfg -f ar71xx.cfg

On a Win32 system, copy the files in LSDK-ja73pf-7.3.0.429/openocd/win32 to a directory.
Assume the files are located in C:\openocd. 
    
    C:\openocd\> openocd.exe -f intellus.cfg

In another terminal type:
    > telnet localhost 4444
    Trying 127.0.0.1...
    Connected to localhost.
    Escape character is '^]'.
    Open On-Chip Debugger
    > reset init
    JTAG tap: ar71xx.cpu tap/device found: 0x00000001 (mfg: 0x000, part: 0x0000, ver: 0x0)
    JTAG Tap/device matched
    target state: halted
    target halted due to debug-request, pc: 0xbfc00000
    > load_image LSDK-ja73pf-7.3.0.429/images/ja73pf/redboot.bin 0xa0500000
    mips32_pracc_fastdata_xfer using 0xa0600000 for write handler
    
    254384 byte written at address 0xa0500000
    downloaded 254384 byte in 2.880110s
    > resume 0xa05000bc


[1] http://www.olimex.com/dev/arm-usb-tiny.html