Difference between revisions of "YAMON"
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| − | + | YAMON™ is the ROM monitor used on MIPS Technologies' development boards. | |
| − | [http://www.mips.com/ | + | An example of YAMON boot log on a MIPS [[MIPS_Malta|Malta]] Board with a [[24K]]c core: |
| + | |||
| + | <pre>YAMON ROM Monitor, Revision 02.06. | ||
| + | Copyright (c) 1999-2004 MIPS Technologies, Inc. - All Rights Reserved. | ||
| + | |||
| + | For a list of available commands, type 'help'. | ||
| + | |||
| + | Compilation time = Mar 23 2004 16:50:44 | ||
| + | Board type/revision = 0x02 (Malta) / 0x00 | ||
| + | Core board type/revision = 0x07 (CoreFPGA-2) / 0x00 | ||
| + | System controller/revision = MIPS SOC-it 101 OCP / 1.3 SDR-FW-1:1 | ||
| + | FPGA revision = 0x0001 | ||
| + | MAC address = 00.d0.a0.00.04.2b | ||
| + | Board S/N = 0000000819 | ||
| + | PCI bus frequency = 33.33 MHz | ||
| + | Processor Company ID/options = 0x01 (MIPS Technologies, Inc.) / 0x00 | ||
| + | Processor ID/revision = 0x93 (MIPS 24Kc) / 0x60 | ||
| + | Endianness = Little | ||
| + | CPU/Bus frequency = 25 MHz / 25 MHz | ||
| + | Flash memory size = 4 MByte | ||
| + | SDRAM size = 64 MByte | ||
| + | First free SDRAM address = 0x800b3860</pre> | ||
| + | |||
| + | ==Environment variables== | ||
| + | |||
| + | YAMON maintains a set of the environment variables in non-volatile memory. Example of environment variables in YAMON: | ||
| + | |||
| + | <pre>YAMON> set | ||
| + | |||
| + | baseboardserial (RO) 0000000819 | ||
| + | bootfile (R/W) | ||
| + | bootprot (R/W) tftp | ||
| + | bootserport (R/W) tty0 | ||
| + | bootserver (R/W) 0.0.0.0 | ||
| + | cpuconfig (R/W) | ||
| + | ethaddr (RO) 00.d0.a0.00.04.2b | ||
| + | fpu (R/W) | ||
| + | gateway (R/W) 0.0.0.0 | ||
| + | ipaddr (R/W) 10.0.0.100 | ||
| + | memsize (RO) 0x04000000 | ||
| + | modetty0 (R/W) 38400,n,8,1,hw | ||
| + | modetty1 (R/W) 38400,n,8,1,hw | ||
| + | prompt (R/W) YAMON | ||
| + | start (R/W) | ||
| + | startdelay (R/W) | ||
| + | subnetmask (R/W) 255.255.255.0 | ||
| + | yamonrev (RO) 02.06</pre> | ||
| + | |||
| + | ==User API== | ||
| + | |||
| + | YAMON provides a set of functions callable by application. Pointers to these functions are located in a table located at 0x9fc00500. | ||
| + | |||
| + | ==Booting== | ||
| + | |||
| + | An [[SREC]] kernel image can be loaded in YAMON as follows: | ||
| + | |||
| + | YAMON> load tftp://<tftp server name>/<srec file in /tftpboot> | ||
| + | |||
| + | for example, if I have a vmlinux.srec in /tftpboot on 10.0.0.139, then: | ||
| + | |||
| + | YAMON> load tftp://10.0.0.139/vmlinux.srec | ||
| + | |||
| + | |||
| + | YAMON> fread tftp://<ipaddr>/<filename> <address> | ||
| + | |||
| + | Load binary image to RAM or flash (depending on address) from TFTP server. The image is a binary file, not in ELF format. | ||
| + | |||
| + | There is also second-stage IDE bootloader [ftp://ftp.mips.com/pub/tools/software/timesys/extras/mipsboot/ mipsboot] | ||
| + | |||
| + | == External Links == | ||
| + | * [http://www.mips.com/products/processors/system-software/yamon/ YAMON page]. (You need a ''free'' registration to download a documentation and sourcecode) | ||
| + | ** Old link: http://www.mips.com/products/software-tools/system-software/yamon/ | ||
| + | * [http://www.mips.com/secure-download/displayagreement.cfm?licenceId=431 YAMON license] | ||
| + | ** Old link: http://www.mips.com/LicenseMapper/Yamon_license | ||
| + | [[category:YAMON]] | ||
Latest revision as of 10:37, 16 August 2012
YAMON™ is the ROM monitor used on MIPS Technologies' development boards.
An example of YAMON boot log on a MIPS Malta Board with a 24Kc core:
YAMON ROM Monitor, Revision 02.06. Copyright (c) 1999-2004 MIPS Technologies, Inc. - All Rights Reserved. For a list of available commands, type 'help'. Compilation time = Mar 23 2004 16:50:44 Board type/revision = 0x02 (Malta) / 0x00 Core board type/revision = 0x07 (CoreFPGA-2) / 0x00 System controller/revision = MIPS SOC-it 101 OCP / 1.3 SDR-FW-1:1 FPGA revision = 0x0001 MAC address = 00.d0.a0.00.04.2b Board S/N = 0000000819 PCI bus frequency = 33.33 MHz Processor Company ID/options = 0x01 (MIPS Technologies, Inc.) / 0x00 Processor ID/revision = 0x93 (MIPS 24Kc) / 0x60 Endianness = Little CPU/Bus frequency = 25 MHz / 25 MHz Flash memory size = 4 MByte SDRAM size = 64 MByte First free SDRAM address = 0x800b3860
Contents |
[edit] Environment variables
YAMON maintains a set of the environment variables in non-volatile memory. Example of environment variables in YAMON:
YAMON> set baseboardserial (RO) 0000000819 bootfile (R/W) bootprot (R/W) tftp bootserport (R/W) tty0 bootserver (R/W) 0.0.0.0 cpuconfig (R/W) ethaddr (RO) 00.d0.a0.00.04.2b fpu (R/W) gateway (R/W) 0.0.0.0 ipaddr (R/W) 10.0.0.100 memsize (RO) 0x04000000 modetty0 (R/W) 38400,n,8,1,hw modetty1 (R/W) 38400,n,8,1,hw prompt (R/W) YAMON start (R/W) startdelay (R/W) subnetmask (R/W) 255.255.255.0 yamonrev (RO) 02.06
[edit] User API
YAMON provides a set of functions callable by application. Pointers to these functions are located in a table located at 0x9fc00500.
[edit] Booting
An SREC kernel image can be loaded in YAMON as follows:
YAMON> load tftp://<tftp server name>/<srec file in /tftpboot>
for example, if I have a vmlinux.srec in /tftpboot on 10.0.0.139, then:
YAMON> load tftp://10.0.0.139/vmlinux.srec
YAMON> fread tftp://<ipaddr>/<filename> <address>
Load binary image to RAM or flash (depending on address) from TFTP server. The image is a binary file, not in ELF format.
There is also second-stage IDE bootloader mipsboot
[edit] External Links
- YAMON page. (You need a free registration to download a documentation and sourcecode)
- YAMON license
