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authorPeter Tyser <ptyser@xes-inc.com>2009-07-10 11:03:19 -0500
committerWolfgang Denk <wd@denx.de>2009-07-21 00:13:21 +0200
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treef832202519d4077e8ca735948198691f054fe968 /examples/README.smc91111_eeprom
parentb220c64d86f7c705a183302c3b50076d7e5d876c (diff)
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Move examples/ to examples/standalone
The current files in examples are all standalone application examples, so put them in their own subdirectory for organizational purposes Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
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-This is the readme for the Das U-Boot standalone program smc91111
-
-The main purpose of this is to manage MAC addresses on platforms
-which include the SMC91111 integrated 10/100 MAC Phy, with attached
-EEPROMs.
-
-
-Contents:
-------------------------
-1. Ensuring U-boot's MAC address can be set in hardware
-2. Running the smc91111_eeprom program
-3. Setting MAC addresses
-4. Other things you can do with this
-5. Things to be done.
-
-
-1. Ensuring U-boot's MAC address can be set in hardware
---------------------------------------------------------------------------
-
-On the Internet - MAC addresses are very important. Short for Media
-Access Control address, a hardware address that uniquely identifies
-each node of a network. When things are not unique - bad things
-can happen. This is why U-Boot makes it difficult to change MAC
-addresses.
-
-To find out who has a MAC address, or to purchase MAC addresses, goto
-the IEEE, at:
-http://standards.ieee.org/regauth/oui/index.shtml
-
-To change your MAC address, there can not be a MAC address predefined in
-U-Boot. To ensure that this does not occur, check your
-include/configs/<board_name>.h file, and check to see that the following
-settings are _not_ or commented out there.
-
-#define HARDCODE_MAC 1
-#define CONFIG_ETHADDR 02:80:ad:20:31:b8
-
-The purpose of HARDCODE_MAC is to hardcode the MAC address in software,
-(not what we want), or to preset it to 02:80:ad:20:31:b8 (not what we
-want either).
-
-You can check this in a running U-Boot, by doing a power cycle, then
-before U-Boot tries to do any networking, running the 'printenv' command
-
- BOOT> printenv
-
- ethaddr=02:80:ad:20:31:b8
-
-If you see the 'ethaddr' variable show up, like the above, you need to
-recompile U-Boot, with the above settings commented out of the
-include/configs/<board_name>.h file.
-
-2. Running the smc91111_eeprom program
----------------------------------------------------------------------
-
-After Uboot is compiled, there should be three files of interest:
--rwxr-xr-x 1 8806 2004-10-11 14:00 smc91111_eeprom <- ELF
--rwxr-xr-x 1 3440 2004-10-11 14:00 smc91111_eeprom.bin <- BIN
--rwxr-xr-x 1 9524 2004-10-11 14:00 smc91111_eeprom.srec <- SREC
-
-if there is not, check the examples/Makefile, and ensure there is something
-like for your architecture:
-
- ifeq ($(ARCH),blackfin)
- SREC += smc91111_eeprom.srec
- BIN += smc91111_eeprom.bin smc91111_eeprom
- endif
-
-To load the files: there are two methods: a) serial or b) network. Since
-it is not a good idea to start doing things on the network before the
-MAC address is set, this example will do things over serial.
-
-a) Loading the elf file via the serial port
---------------------------------------------
-Loading the elf is very easy - just ensure that the location
-you specify things to load as is not the load address specified
-in the Makefile.
-
-BOOT> loadb 0x1000000
-
-## Ready for binary (kermit) download to 0x01000000 at 57600 bps...
-
-(type CNTL-\ then C)
-(Back at local machine)
-----------------------------------------------------
-Kermit>send ~/u-boot_1.1.1/examples/smc91111_eeprom
-Kermit>connect
-
-Connecting to /dev/ttyS0, speed 57600
- Escape character: Ctrl-\ (ASCII 28, FS): enabled
-Type the escape character followed by C to get back,
-or followed by ? to see other options.
-----------------------------------------------------
-## Total Size = 0x00002266 = 8806 Bytes
-## Start Addr = 0x01000000
-
-BOOT> bootelf 0x1000000
-
-Loading .text @ 0x00001000 (3440 bytes)
-## Starting application at 0x000010d8 ...
-
-SMC91111>
-
-b) Loading the binary file via the serial port
------------------------------------------------
-For many toolchains, the entry point is not the load point.
-The Load point is a hard coded address from the
-examples/Makefile. The entry point can be found by doing something
-like:
-
- u-boot_1.1.1/examples> bfin-elf-objdump -d smc91111_eeprom |less
-
- smc91111_eeprom: file format elf32-bfin
-
- Disassembly of section .text:
-
- 00001000 <smc91111_eeprom-0xd8>:
- 1000:
- 000010d8 <smc91111_eeprom>:
-
-You can see that the entry point (or the address that should be
-jumped to is 0x10d8). This is also the same as the entry point
-of the elf file.
-
-Now we load it to the actual load location:
-
-BOOT> loadb 0x1000
-
-## Ready for binary (kermit) download to 0x00001000 at 57600 bps...
-
-(Back at pinky.dsl-only.net)
-----------------------------------------------------
-Kermit>send /tftpboot/eeprom.bin
-Kermit>connect
-
-Connecting to /dev/ttyS0, speed 57600
- Escape character: Ctrl-\ (ASCII 28, FS): enabled
-Type the escape character followed by C to get back,
-or followed by ? to see other options.
-----------------------------------------------------
-## Total Size = 0x00000d70 = 3440 Bytes
-## Start Addr = 0x00001000
-
-BOOT> go 0x10D8
-
-## Starting application at 0x000010D8 ...
-
-SMC91111>
-
-3. Setting MAC addresses
---------------------------------------------------------------------------
-
-The MAC address can be stored in four locations:
-
--Boot environmental variable in Flash <- can not change, without
- re-flashing U-boot.
-U-Boot environental variable <- can not change, without
- resetting board/U-Boot
-LAN91C111 Registers <- volitle
-LAN91C111 EEPROM <- Non Volitle
-
-If you have not activated the network, and do not have a hardcoded
-or pre-assigned MAC address in U-boot, the environmental variables
-should be blank, and allow you to set things one time.
-
-To set the EEPROM MAC address to 12:34:56:78:9A:BC
-
-SMC91111> W E 20 3412
-
-Writing EEPROM register 20 with 3412
-SMC91111> W E 21 7856
-
-Writing EEPROM register 21 with 7856
-SMC91111> W E 22 BC9A
-
-Writing EEPROM register 22 with bc9a
-EEPROM contents copied to MAC
-SMC91111> P
-
-Current MAC Address in SMSC91111 12:34:56:78:9a:bc
-Current MAC Address in EEPROM 12:34:56:78:9a:bc
-
-(CNTRL-C to exit)
-SMC91111> ## Application terminated, rc = 0x0
-
-BOOT> reset
-U-Boot 1.1.1 (gcc version: 3.3.3)
-Release Version Beta released on Oct 10 2004 - 00:34:35
-Blackfin support by LG Soft India
-For further information please check this link http://www.blackfin.uclinux.org
-BOOT> ping 192.168.0.4
-
-Using MAC Address 12:34:56:78:9A:BC
-host 192.168.0.4 is alive
-
-
-4. Other things that you can do
---------------------------------------------------------------------------
-After the stand alone application is running, there are a few options:
- - P : Print the MAC
- - D : Dump the LAN91C111 EEPROM contents
- - M : Dump the LAN91C111 MAC contents
- - C : Copies the MAC address from the EEPROM to the LAN91C111
- - W : Write a register in the EEPROM or in the MAC
-
-SMC91111> P
-
-Current MAC Address in SMSC91111 12:34:56:78:9a:bc
-Current MAC Address in EEPROM 12:34:56:78:9a:bc
-
-SMC91111> D
-
-IOS2-0 000 001 002 003 004 005 006 007
-CONFIG 00:ffff 04:ffff 08:ffff 0c:ffff 10:ffff 14:ffff 18:ffff 1c:ffff
-BASE 01:ffff 05:ffff 09:ffff 0d:ffff 11:ffff 15:ffff 19:ffff 1d:ffff
- 02:ffff 06:ffff 0a:ffff 0e:0020 12:ffff 16:ffff 1a:ffff 1e:ffff
- 03:ffff 07:ffff 0b:ffff 0f:ffff 13:ffff 17:ffff 1b:ffff 1f:ffff
-
-20:3412 21:7856 22:bc9a 23:ffff 24:ffff 25:ffff 26:ffff 27:ffff
-28:ffff 29:ffff 2a:ffff 2b:ffff 2c:ffff 2d:ffff 2e:ffff 2f:ffff
-30:ffff 31:ffff 32:ffff 33:ffff 34:ffff 35:ffff 36:ffff 37:ffff
-38:ffff 39:ffff 3a:ffff 3b:ffff 3c:ffff 3d:ffff 3e:ffff 3f:ffff
-
-SMC91111> M
-
- Bank0 Bank1 Bank2 Bank3
-00 0000 a0b1 3332 0000
-02 0000 1801 8000 0000
-04 0000 3412 8080 0000
-06 0000 7856 003f 0000
-08 0404 bc9a 02df 3332
-0a 0000 ffff 02df 3391
-0c 0000 1214 0004 001f
-0e 3300 3301 3302 3303
-
-SMC91111> C
-
-EEPROM contents copied to MAC
-
-SMC91111> W E 2A ABCD
-
-Writing EEPROM register 2a with abcd
-
-SMC91111> W M 14 FF00
-
-Writing MAC register bank 1, reg 04 with ff00