Add standalone application to change SMC91C111 MAC addresses, see examples/README.smc91111_eeprom * Patch by Xiaogeng (Shawn) Jin, 12 Oct 2004: Fix Flash support for ARM Integrator CP.master
wdenk
21 years ago
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This is the readme for the Das U-Boot standalone program smc91111 |
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The main purpose of this is to manage MAC addresses on platforms |
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which include the SMC91111 integrated 10/100 MAC Phy, with attached |
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EEPROMs. |
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Contents: |
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------------------------ |
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1. Ensuring U-boot's MAC address can be set in hardware |
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2. Running the smc91111_eeprom program |
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3. Setting MAC addresses |
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4. Other things you can do with this |
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5. Things to be done. |
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1. Ensuring U-boot's MAC address can be set in hardware |
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-------------------------------------------------------------------------- |
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On the Internet - MAC addresses are very important. Short for Media |
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Access Control address, a hardware address that uniquely identifies |
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each node of a network. When things are not unique - bad things |
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can happen. This is why U-Boot makes it difficult to change MAC |
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addresses. |
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To find out who has a MAC address, or to purchase MAC addresses, goto |
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the IEEE, at: |
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http://standards.ieee.org/regauth/oui/index.shtml |
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To change your MAC address, there can not be a MAC address predefined in |
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U-Boot. To ensure that this does not occur, check your |
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include/configs/<board_name>.h file, and check to see that the following |
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settings are _not_ or commented out there. |
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#define HARDCODE_MAC 1 |
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#define CONFIG_ETHADDR 02:80:ad:20:31:b8 |
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The purpose of HARDCODE_MAC is to hardcode the MAC address in software, |
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(not what we want), or to preset it to 02:80:ad:20:31:b8 (not what we |
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want either). |
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You can check this in a running U-Boot, by doing a power cycle, then |
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before U-Boot tries to do any networking, running the 'printenv' command |
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BOOT> printenv |
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ethaddr=02:80:ad:20:31:b8 |
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If you see the 'ethaddr' variable show up, like the above, you need to |
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recompile U-Boot, with the above settings commented out of the |
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include/configs/<board_name>.h file. |
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2. Running the smc91111_eeprom program |
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--------------------------------------------------------------------- |
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After Uboot is compiled, there should be three files of interest: |
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-rwxr-xr-x 1 8806 2004-10-11 14:00 smc91111_eeprom <- ELF |
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-rwxr-xr-x 1 3440 2004-10-11 14:00 smc91111_eeprom.bin <- BIN |
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-rwxr-xr-x 1 9524 2004-10-11 14:00 smc91111_eeprom.srec <- SREC |
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if there is not, check the examples/Makefile, and ensure there is something |
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like for your architecture: |
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ifeq ($(ARCH),blackfin) |
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SREC += smc91111_eeprom.srec |
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BIN += smc91111_eeprom.bin smc91111_eeprom |
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endif |
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To load the files: there are two methods: a) serial or b) network. Since |
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it is not a good idea to start doing things on the network before the |
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MAC address is set, this example will do things over serial. |
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a) Loading the elf file via the serial port |
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-------------------------------------------- |
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Loading the elf is very easy - just ensure that the location |
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you specify things to load as is not the load address specified |
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in the Makefile. |
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BOOT> loadb 0x1000000 |
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## Ready for binary (kermit) download to 0x01000000 at 57600 bps... |
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(type CNTL-\ then C) |
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(Back at local machine) |
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---------------------------------------------------- |
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Kermit>send ~/u-boot_1.1.1/examples/smc91111_eeprom |
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Kermit>connect |
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Connecting to /dev/ttyS0, speed 57600 |
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Escape character: Ctrl-\ (ASCII 28, FS): enabled |
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Type the escape character followed by C to get back, |
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or followed by ? to see other options. |
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---------------------------------------------------- |
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## Total Size = 0x00002266 = 8806 Bytes |
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## Start Addr = 0x01000000 |
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BOOT> bootelf 0x1000000 |
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Loading .text @ 0x00001000 (3440 bytes) |
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## Starting application at 0x000010d8 ... |
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SMC91111> |
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b) Loading the binary file via the serial port |
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----------------------------------------------- |
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For many toolchains, the entry point is not the load point. |
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The Load point is a hard coded address from the |
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examples/Makefile. The entry point can be found by doing something |
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like: |
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u-boot_1.1.1/examples> bfin-elf-objdump -d smc91111_eeprom |less |
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smc91111_eeprom: file format elf32-bfin |
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Disassembly of section .text: |
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00001000 <smc91111_eeprom-0xd8>: |
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1000: |
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000010d8 <smc91111_eeprom>: |
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You can see that the entry point (or the address that should be |
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jumped to is 0x10d8). This is also the same as the entry point |
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of the elf file. |
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Now we load it to the actual load location: |
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BOOT> loadb 0x1000 |
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## Ready for binary (kermit) download to 0x00001000 at 57600 bps... |
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(Back at pinky.dsl-only.net) |
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---------------------------------------------------- |
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Kermit>send /tftpboot/eeprom.bin |
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Kermit>connect |
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Connecting to /dev/ttyS0, speed 57600 |
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Escape character: Ctrl-\ (ASCII 28, FS): enabled |
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Type the escape character followed by C to get back, |
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or followed by ? to see other options. |
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---------------------------------------------------- |
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## Total Size = 0x00000d70 = 3440 Bytes |
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## Start Addr = 0x00001000 |
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BOOT> go 0x10D8 |
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## Starting application at 0x000010D8 ... |
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SMC91111> |
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3. Setting MAC addresses |
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-------------------------------------------------------------------------- |
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The MAC address can be stored in four locations: |
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-Boot environmental variable in Flash <- can not change, without |
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re-flashing U-boot. |
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U-Boot environental variable <- can not change, without |
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resetting board/U-Boot |
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LAN91C111 Registers <- volitle |
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LAN91C111 EEPROM <- Non Volitle |
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If you have not activated the network, and do not have a hardcoded |
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or pre-assigned MAC address in U-boot, the environmental variables |
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should be blank, and allow you to set things one time. |
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To set the EEPROM MAC address to 12:34:56:78:9A:BC |
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SMC91111> W E 20 3412 |
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Writing EEPROM register 20 with 3412 |
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SMC91111> W E 21 7856 |
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Writing EEPROM register 21 with 7856 |
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SMC91111> W E 22 BC9A |
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Writing EEPROM register 22 with bc9a |
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EEPROM contents copied to MAC |
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SMC91111> P |
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Current MAC Address in SMSC91111 12:34:56:78:9a:bc |
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Current MAC Address in EEPROM 12:34:56:78:9a:bc |
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(CNTRL-C to exit) |
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SMC91111> ## Application terminated, rc = 0x0 |
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BOOT> reset |
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U-Boot 1.1.1 (gcc version: 3.3.3) |
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Release Version Beta released on Oct 10 2004 - 00:34:35 |
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Blackfin support by LG Soft India |
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For further information please check this link http://www.blackfin.uclinux.org |
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BOOT> ping 192.168.0.4 |
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Using MAC Address 12:34:56:78:9A:BC |
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host 192.168.0.4 is alive |
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4. Other things that you can do |
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-------------------------------------------------------------------------- |
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After the stand alone application is running, there are a few options: |
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- P : Print the MAC |
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- D : Dump the LAN91C111 EEPROM contents |
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- M : Dump the LAN91C111 MAC contents |
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- C : Copies the MAC address from the EEPROM to the LAN91C111 |
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- W : Write a register in the EEPROM or in the MAC |
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SMC91111> P |
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Current MAC Address in SMSC91111 12:34:56:78:9a:bc |
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Current MAC Address in EEPROM 12:34:56:78:9a:bc |
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SMC91111> D |
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IOS2-0 000 001 002 003 004 005 006 007 |
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CONFIG 00:ffff 04:ffff 08:ffff 0c:ffff 10:ffff 14:ffff 18:ffff 1c:ffff |
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BASE 01:ffff 05:ffff 09:ffff 0d:ffff 11:ffff 15:ffff 19:ffff 1d:ffff |
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02:ffff 06:ffff 0a:ffff 0e:0020 12:ffff 16:ffff 1a:ffff 1e:ffff |
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03:ffff 07:ffff 0b:ffff 0f:ffff 13:ffff 17:ffff 1b:ffff 1f:ffff |
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20:3412 21:7856 22:bc9a 23:ffff 24:ffff 25:ffff 26:ffff 27:ffff |
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28:ffff 29:ffff 2a:ffff 2b:ffff 2c:ffff 2d:ffff 2e:ffff 2f:ffff |
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30:ffff 31:ffff 32:ffff 33:ffff 34:ffff 35:ffff 36:ffff 37:ffff |
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38:ffff 39:ffff 3a:ffff 3b:ffff 3c:ffff 3d:ffff 3e:ffff 3f:ffff |
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SMC91111> M |
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Bank0 Bank1 Bank2 Bank3 |
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00 0000 a0b1 3332 0000 |
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02 0000 1801 8000 0000 |
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04 0000 3412 8080 0000 |
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06 0000 7856 003f 0000 |
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08 0404 bc9a 02df 3332 |
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0a 0000 ffff 02df 3391 |
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0c 0000 1214 0004 001f |
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0e 3300 3301 3302 3303 |
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SMC91111> C |
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EEPROM contents copied to MAC |
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SMC91111> W E 2A ABCD |
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Writing EEPROM register 2a with abcd |
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SMC91111> W M 14 FF00 |
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Writing MAC register bank 1, reg 04 with ff00 |
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@ -0,0 +1,391 @@ |
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/*
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* (C) Copyright 2004 |
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* Robin Getz rgetz@blacfin.uclinux.org |
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* |
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* See file CREDITS for list of people who contributed to this |
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* project. |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2 of |
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* the License, or (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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* MA 02111-1307 USA |
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* |
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* Heavily borrowed from the following peoples GPL'ed software: |
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* - Wolfgang Denk, DENX Software Engineering, wd@denx.de |
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* Das U-boot |
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* - Ladislav Michl ladis@linux-mips.org |
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* A rejected patch on the U-Boot mailing list |
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*/ |
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#include <common.h> |
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#include <exports.h> |
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#include "../drivers/smc91111.h" |
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#define SMC_BASE_ADDRESS CONFIG_SMC91111_BASE |
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#define EEPROM 0x1; |
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#define MAC 0x2; |
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#define UNKNOWN 0x4; |
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void dump_reg (void); |
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void dump_eeprom (void); |
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int write_eeprom_reg (int, int); |
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void copy_from_eeprom (void); |
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void print_MAC (void); |
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int read_eeprom_reg (int); |
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void print_macaddr (void); |
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int smc91111_eeprom (int argc, char *argv[]) |
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{ |
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int c, i, j, done, line, reg, value, start, what; |
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char input[50]; |
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/* Print the ABI version */ |
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app_startup (argv); |
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if (XF_VERSION != (int) get_version ()) { |
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printf ("Expects ABI version %d\n", XF_VERSION); |
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printf ("Actual U-Boot ABI version %d\n", |
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(int) get_version ()); |
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printf ("Can't run\n\n"); |
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return (0); |
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} |
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asm ("p2.h = 0xFFC0;"); |
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asm ("p2.l = 0x0730;"); |
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asm ("r0 = 0x01;"); |
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asm ("w[p2] = r0;"); |
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asm ("ssync;"); |
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asm ("p2.h = 0xffc0;"); |
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asm ("p2.l = 0x0708;"); |
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asm ("r0 = 0x01;"); |
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asm ("w[p2] = r0;"); |
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asm ("ssync;"); |
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if ((SMC_inw (BANK_SELECT) & 0xFF00) != 0x3300) { |
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printf ("Can't find SMSC91111\n"); |
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return (0); |
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} |
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done = 0; |
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what = UNKNOWN; |
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printf ("\n"); |
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while (!done) { |
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/* print the prompt */ |
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printf ("SMC91111> "); |
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line = 0; |
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i = 0; |
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start = 1; |
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while (!line) { |
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/* Wait for a keystroke */ |
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while (!tstc ()); |
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c = getc (); |
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/* Make Uppercase */ |
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if (c >= 'Z') |
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c -= ('a' - 'A'); |
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/* printf(" |%02x| ",c); */ |
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switch (c) { |
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case '\r': /* Enter */ |
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case '\n': |
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input[i] = 0; |
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puts ("\r\n"); |
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line = 1; |
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break; |
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case '\0': /* nul */ |
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continue; |
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case 0x03: /* ^C - break */ |
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input[0] = 0; |
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i = 0; |
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line = 1; |
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done = 1; |
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break; |
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case 0x5F: |
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case 0x08: /* ^H - backspace */ |
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case 0x7F: /* DEL - backspace */ |
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if (i > 0) { |
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puts ("\b \b"); |
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i--; |
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} |
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break; |
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default: |
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if (start) { |
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if ((c == 'W') || (c == 'D') |
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|| (c == 'M') || (c == 'C') |
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|| (c == 'P')) { |
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putc (c); |
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input[i] = c; |
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if (i <= 45) |
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i++; |
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start = 0; |
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} |
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} else { |
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if ((c >= '0' && c <= '9') |
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|| (c >= 'A' && c <= 'F') |
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|| (c == 'E') || (c == 'M') |
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|| (c == ' ')) { |
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putc (c); |
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input[i] = c; |
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if (i <= 45) |
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i++; |
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break; |
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} |
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} |
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break; |
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} |
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} |
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for (; i < 49; i++) |
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input[i] = 0; |
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switch (input[0]) { |
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case ('W'): |
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/* Line should be w reg value */ |
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i = 0; |
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reg = 0; |
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value = 0; |
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/* Skip to the next space or end) */ |
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while ((input[i] != ' ') && (input[i] != 0)) |
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i++; |
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if (input[i] != 0) |
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i++; |
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/* Are we writing to EEPROM or MAC */ |
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switch (input[i]) { |
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case ('E'): |
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what = EEPROM; |
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break; |
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case ('M'): |
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what = MAC; |
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break; |
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default: |
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what = UNKNOWN; |
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break; |
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} |
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/* skip to the next space or end */ |
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while ((input[i] != ' ') && (input[i] != 0)) |
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i++; |
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if (input[i] != 0) |
||||||
|
i++; |
||||||
|
|
||||||
|
/* Find register to write into */ |
||||||
|
j = 0; |
||||||
|
while ((input[i] != ' ') && (input[i] != 0)) { |
||||||
|
j = input[i] - 0x30; |
||||||
|
if (j >= 0xA) { |
||||||
|
j -= 0x07; |
||||||
|
} |
||||||
|
reg = (reg * 0x10) + j; |
||||||
|
i++; |
||||||
|
} |
||||||
|
|
||||||
|
while ((input[i] != ' ') && (input[i] != 0)) |
||||||
|
i++; |
||||||
|
|
||||||
|
if (input[i] != 0) |
||||||
|
i++; |
||||||
|
else |
||||||
|
what = UNKNOWN; |
||||||
|
|
||||||
|
/* Get the value to write */ |
||||||
|
j = 0; |
||||||
|
while ((input[i] != ' ') && (input[i] != 0)) { |
||||||
|
j = input[i] - 0x30; |
||||||
|
if (j >= 0xA) { |
||||||
|
j -= 0x07; |
||||||
|
} |
||||||
|
value = (value * 0x10) + j; |
||||||
|
i++; |
||||||
|
} |
||||||
|
|
||||||
|
switch (what) { |
||||||
|
case 1: |
||||||
|
printf ("Writing EEPROM register %02x with %04x\n", |
||||||
|
reg, value); |
||||||
|
write_eeprom_reg (value, reg); |
||||||
|
break; |
||||||
|
case 2: |
||||||
|
printf ("Writing MAC register bank %i, |
||||||
|
reg %02x with %04x\n", reg >> 4, reg & 0xE, value); |
||||||
|
SMC_SELECT_BANK (reg >> 4); |
||||||
|
SMC_outw (value, reg & 0xE); |
||||||
|
break; |
||||||
|
default: |
||||||
|
printf ("Wrong\n"); |
||||||
|
break; |
||||||
|
} |
||||||
|
break; |
||||||
|
case ('D'): |
||||||
|
dump_eeprom (); |
||||||
|
break; |
||||||
|
case ('M'): |
||||||
|
dump_reg (); |
||||||
|
break; |
||||||
|
case ('C'): |
||||||
|
copy_from_eeprom (); |
||||||
|
break; |
||||||
|
case ('P'): |
||||||
|
print_macaddr (); |
||||||
|
break; |
||||||
|
default: |
||||||
|
break; |
||||||
|
} |
||||||
|
|
||||||
|
} |
||||||
|
|
||||||
|
return (0); |
||||||
|
} |
||||||
|
|
||||||
|
void copy_from_eeprom (void) |
||||||
|
{ |
||||||
|
int i; |
||||||
|
|
||||||
|
SMC_SELECT_BANK (1); |
||||||
|
SMC_outw ((SMC_inw (CTL_REG) & !CTL_EEPROM_SELECT) | CTL_RELOAD, |
||||||
|
CTL_REG); |
||||||
|
i = 100; |
||||||
|
while ((SMC_inw (CTL_REG) & CTL_RELOAD) && --i) |
||||||
|
udelay (100); |
||||||
|
if (i == 0) { |
||||||
|
printf ("Timeout Refreshing EEPROM registers\n"); |
||||||
|
} else { |
||||||
|
printf ("EEPROM contents copied to MAC\n"); |
||||||
|
} |
||||||
|
|
||||||
|
} |
||||||
|
|
||||||
|
void print_macaddr (void) |
||||||
|
{ |
||||||
|
int i, j, k, mac[6]; |
||||||
|
|
||||||
|
printf ("Current MAC Address in SMSC91111 "); |
||||||
|
SMC_SELECT_BANK (1); |
||||||
|
for (i = 0; i < 5; i++) { |
||||||
|
printf ("%02x:", SMC_inb (ADDR0_REG + i)); |
||||||
|
} |
||||||
|
|
||||||
|
printf ("%02x\n", SMC_inb (ADDR0_REG + 5)); |
||||||
|
|
||||||
|
i = 0; |
||||||
|
for (j = 0x20; j < 0x23; j++) { |
||||||
|
k = read_eeprom_reg (j); |
||||||
|
mac[i] = k & 0xFF; |
||||||
|
i++; |
||||||
|
mac[i] = k >> 8; |
||||||
|
i++; |
||||||
|
} |
||||||
|
|
||||||
|
printf ("Current MAC Address in EEPROM "); |
||||||
|
for (i = 0; i < 5; i++) |
||||||
|
printf ("%02x:", mac[i]); |
||||||
|
printf ("%02x\n", mac[5]); |
||||||
|
|
||||||
|
} |
||||||
|
void dump_eeprom (void) |
||||||
|
{ |
||||||
|
int j, k; |
||||||
|
|
||||||
|
printf ("IOS2-0 "); |
||||||
|
for (j = 0; j < 8; j++) { |
||||||
|
printf ("%03x ", j); |
||||||
|
} |
||||||
|
printf ("\n"); |
||||||
|
|
||||||
|
for (k = 0; k < 4; k++) { |
||||||
|
if (k == 0) |
||||||
|
printf ("CONFIG "); |
||||||
|
if (k == 1) |
||||||
|
printf ("BASE "); |
||||||
|
if ((k == 2) || (k == 3)) |
||||||
|
printf (" "); |
||||||
|
for (j = 0; j < 0x20; j += 4) { |
||||||
|
printf ("%02x:%04x ", j + k, read_eeprom_reg (j + k)); |
||||||
|
} |
||||||
|
printf ("\n"); |
||||||
|
} |
||||||
|
|
||||||
|
for (j = 0x20; j < 0x40; j++) { |
||||||
|
if ((j & 0x07) == 0) |
||||||
|
printf ("\n"); |
||||||
|
printf ("%02x:%04x ", j, read_eeprom_reg (j)); |
||||||
|
} |
||||||
|
printf ("\n"); |
||||||
|
|
||||||
|
} |
||||||
|
|
||||||
|
int read_eeprom_reg (int reg) |
||||||
|
{ |
||||||
|
int timeout; |
||||||
|
|
||||||
|
SMC_SELECT_BANK (2); |
||||||
|
SMC_outw (reg, PTR_REG); |
||||||
|
|
||||||
|
SMC_SELECT_BANK (1); |
||||||
|
SMC_outw (SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_RELOAD, |
||||||
|
CTL_REG); |
||||||
|
timeout = 100; |
||||||
|
while ((SMC_inw (CTL_REG) & CTL_RELOAD) && --timeout) |
||||||
|
udelay (100); |
||||||
|
if (timeout == 0) { |
||||||
|
printf ("Timeout Reading EEPROM register %02x\n", reg); |
||||||
|
return 0; |
||||||
|
} |
||||||
|
|
||||||
|
return SMC_inw (GP_REG); |
||||||
|
|
||||||
|
} |
||||||
|
|
||||||
|
int write_eeprom_reg (int value, int reg) |
||||||
|
{ |
||||||
|
int timeout; |
||||||
|
|
||||||
|
SMC_SELECT_BANK (2); |
||||||
|
SMC_outw (reg, PTR_REG); |
||||||
|
|
||||||
|
SMC_SELECT_BANK (1); |
||||||
|
SMC_outw (value, GP_REG); |
||||||
|
SMC_outw (SMC_inw (CTL_REG) | CTL_EEPROM_SELECT | CTL_STORE, CTL_REG); |
||||||
|
timeout = 100; |
||||||
|
while ((SMC_inw (CTL_REG) & CTL_STORE) && --timeout) |
||||||
|
udelay (100); |
||||||
|
if (timeout == 0) { |
||||||
|
printf ("Timeout Writing EEPROM register %02x\n", reg); |
||||||
|
return 0; |
||||||
|
} |
||||||
|
|
||||||
|
return 1; |
||||||
|
|
||||||
|
} |
||||||
|
|
||||||
|
void dump_reg (void) |
||||||
|
{ |
||||||
|
int i, j; |
||||||
|
|
||||||
|
printf (" "); |
||||||
|
for (j = 0; j < 4; j++) { |
||||||
|
printf ("Bank%i ", j); |
||||||
|
} |
||||||
|
printf ("\n"); |
||||||
|
for (i = 0; i < 0xF; i += 2) { |
||||||
|
printf ("%02x ", i); |
||||||
|
for (j = 0; j < 4; j++) { |
||||||
|
SMC_SELECT_BANK (j); |
||||||
|
printf ("%04x ", SMC_inw (i)); |
||||||
|
} |
||||||
|
printf ("\n"); |
||||||
|
} |
||||||
|
} |
||||||
Loading…
Reference in new issue