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DAVICOM Semiconductor Inc. 05/05/2014 A Davicom DM9051 SPI Fast Ethernet driver for Linux. Copyright (C) 2009 Stone Shyr This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. A. Compiler command: Run make command Run make install command. If DM9051 module is already existed (check this by lsmod), Please run "modprobe -r dm9051" first B. The following steps teach you how to activate NIC: B-1: A simple and temporary method 1. Used the upper compiler command to compile dm9051.c 2. Insert DM9051 module into kernel "insmod dm9051.ko" ;;Auto Detection Mode (Suggest) NOTE: You can type "man insmod" to see more description. 3. Config a DM9051 network interface "ifconfig eth0 172.22.3.18" ^^^^^^^^^^^ Your IP address NOTE: 1. You can type "man ifconfig" to see more description. 2. If eth0 has been used, you should use eth1 instead. 4. Activate the IP routing table. For some distributions, it is not necessary. You can type "route" to check. "route add default netmask 255.255.255.0 eth0" NOTE: 1. You can type "man route" to see more description. 2. If eth0 has been used, you should use eth1 instead. 5. Well done. Your DM9051 adapter actived now. Note. This is a temporary method. After you reboot the system, you will lost the setting. B-2: For Redhat, You can use the following to Activate NIC 1. login your system used the superuser. 2. copy dm9051.ko into /lib/modules/2.6.x/kernel/drivers/net/ 3. add the new line with "alias eth0 dm9051" in "/etc/module.conf". 4. execute "netconfig -d eth0". 5. Fill your IP address, netmask and gateway 6. press <ok> to confirm and exit this setting 7 reboot Note. If eth0 has been used, you should use eth1 instead. C. Setup driver parameter: 1. MAC address : source from cmdline.txt cmdline.txt write dm9051.macaddr=XX:XX:XX:XX:XX:XX or $sudo modprobe dm9051 macaddr=XX:XX:XX:XX:XX:XX 2. Read EEPROM MAC address : source from EEPROM cmdline.txt write dm9051.enable_eeprom=1 or 0. or $sudo modprobe dm9051 enable_eeprom=1 or 0. note : enable_eeprom=1, priority use EEPROM MAC address. DAVICOM Web-Site: www.davicom.com.tw //------------------------------------------------------------------------------ raspberry linux dm9051 driver 1.1 1. MAC address source from cmdlin.txt: $sudo vim /boot/cmdline.txt add : dm9051.macaddr=XX:XX:XX:XX:XX:XX ex: dm9051.macaddr=00:60:6E:90:51:02 2. open read DM9051 EEPROM get MAC address: $sudo modprobe dm9051 enable_eeprom=1 3. on raspberry SPI clock table: cdiv speed 2 125.0 MHz 4 62.5 MHz 8 31.2 MHz 16 15.6 MHz 32 7.8 MHz 64 3.9 MHz 128 1953 kHz 256 976 kHz 512 488 kHz 1024 244 kHz 2048 122 kHz 4096 61 kHz 8192 30.5 kHz 16384 15.2 kHz 32768 7629 Hz (1) use on raspberry pi 3 model B can't over than 15.6MHz, dts file set 15600000 (2) use on raspberry pi zero can't over than 7.8Mhz 4. on raspberry test throughput : use SPI0, on SPI0 transfer more than 96 byte auto enable DMA, SPI clock = 24MHz. iperf test result about: [ ID] Interval Transfer Bandwidth [ 4] 0.0-11.3 sec 21.8 MBytes 16.1 Mbits/sec on SPI1, SPI clock 24Mhz, SPI1 & SPI2 not support DMA, iperf test result about: [ ID] Interval Transfer Bandwidth [ 4] 0.0-10.7 sec 15.6 MBytes 12.2 Mbits/sec //debug log -------------------------------------------------------------------- 2019/09/24 1. on TX/RX function add FIFO pointer check, debug can't ping overnight issue.
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