Show pagesourceOld revisionsBacklinksBack to top × Table of Contents MediaTek / Ralink General Ralink ramips RGMII configuration MediaTek xDSL Products Linux support for MediaTek xDSL Devices MediaTek / Ralink General On May, 5th 2011, MediaTek bought Ralink. Most WNICs are supported by the rt2x00 driver family. See wireless.overview Websites with more background information Ralink http://www.mediatek.com http://wikidevi.com/wiki/Ralink http://wikidevi.com/wiki/MediaTek Ralink ramips A quite good source for product specs on MediaTek/Ralink SoCs seems to be here: https://deviwiki.com/wiki/Ralink. OpenWrt specific: all MediaTek/Ralink SoCs are merged under the target ramips. building a target requires a target-specific firmware (that is, most devices need customized firmware). The kernel is patched with the command line that has the board name in it. This mechanism is similar to what is done for ar71xx platforms. browse the source code: https://github.com/openwrt/openwrt/tree/master/target/linux/ramips : there might still be some historical information in the OpenWrt dev wiki https://dev.openwrt.org/wiki/platforms, but it must be well hidden then. Seems there is nothing that can be found today... Target Subtarget SoC RAM Ant MIPS Devices ramips RT288x RT2880 SDR 2T3R 4KEc see ToH RT3x5x/RT5350 RT3050 SDR 2T2R 24KEc see ToH RT3052 SDR 2T2R 24KEc see ToH RT3350 SDR 1T1R 24KEc see ToH RT3352 SDR/DDR2 2T2R 24KEc see ToH RT5350 SDR 1T1R 24KEc see ToH RT3662/RT3883 RT3662 SDR/DDR2 2T3R 74Kc see ToH RT3883 SDR/DDR2 3T3R 74Kc see ToH MT7620 MT7620a DDR2 2T2R 24KEc see ToH MT7620n SDR/DDR1/2 2T2R 24KEc see ToH MT7621 MT7621AT DDR2/3 n/a 1004Kc see ToH MT7621ST DDR2/3 n/a 1004Kc see ToH MT7628 MT7628 DDR1/2 2T2R 24kec see ToH MT7688 MT7688 DDR1/2 1T1R 24kec see ToH ramips n/a RT6856 ? ? 34KEc see ToH MT7620 vs. RT5350 both chips are very similar on the software layer. MT7620 is the successor, it's “faster and better”, http://www.mediatek.com/en/products/connectivity/wifi/home-network/wifi-ap/mt7620na http://www.anz.ru/files/mediatek/MT7620_Datasheet.pdf RT5350 is still available and cheaper, http://cdn.sparkfun.com/datasheets/Wireless/WiFi/RT5350.pdf see here for a comparison: http://vonger.cn/?p=242 MT7621 2 cores, 4 threads: MT7621AT 1 core, 2 threads: MT7621ST, MT7621NT SoC does not include a Wifi subsystem https://www.mediatek.com/products/homeNetworking/mt7621 https://deviwiki.com/wiki/MediaTek_MT7621 MT7628 MT7628A: Full function with external DRAM MT7628K: Embedded 8MB DRAM and L-shape MT7628N: Same as MT7628A, but without PCle and IoT modes RGMII configuration On MT7620A and likely other Ralink / Mediatek SOCs, the RGMII delay is set with the Port I control register in the GSW (gigabit switch) subsystem for boards with uboot and an available console (option 4?), the register can be read with the command md 0x10117014 1 and the following bits tell you the OEM bootloader / chip defaults BIT(2)RX no delay BIT(3)TX delay BITS(16, 20)PHY_BASE BITS(24, 28)PHY_DISABLE For a complete explanation, look for the register 0x7014 in the MT7620 Programming Guide example: 10117014: 1f08000c c -→ 1100 -→ TX delay only 8 -→ PHY_BASE address 1f -→ internal PHYs disabled Remember: You have to read bits from right to left. For example 1f08000c in binary becomes 00011111000010000000000000001100 0001 1111 0000 1000 0000 0000 0000 1100 | | | | | | | | 28 24 20 16 12 8 4 0 MediaTek xDSL Products ADSL http://www.mediatek.com/_en/01_products/04_pro.php?sn=1031 TC3085/TC3086 = AFE (Analog Front-End) for ADSL2+ TC3162L2M It incorporates a 32-bit network processor and a DMT (Discrete Multi-Tone)-engine for ADSL2+ TC3162LEM It incorporates a 32-bit network processor and a DMT (Discrete Multi-Tone)-engine for ADSL2+ VDSL RT63260 The RT63260 is a highly integrated single-chip solution combining AFE (Analog Front End) chip technology and an ADSL2/2+ wired ADSL modem application together on one chip. It includes a 32-bit network processor and a Discrete Multi-Tone (DMT) engine for ADSL RT63365 combine with RT63087 AFE (Analog Front-End) for VDSL2 RT63368 It incorporates a MIPS 34Kc CPU and a DMT (Discrete Multi-Tone)-engine for VDSL2 combine with RT63087 AFE (Analog Front-End) for VDSL2 RT65168 It incorporates a MIPS 34Kc CPU and a DMT (Discrete Multi-Tone)-engine for VDSL2 combine with RT63095 AFE (Analog Front-End) for VDSL2 Linux support for MediaTek xDSL unknown Devices The list of related devices: MediaTek, MT7620a, MT7620N, MT7621, MT7628, MT7688, Ralink, ramips, rt2880, rt3050, rt3052, rt3350, rt3352, rt3662, rt3883, rt5350 This website uses cookies. By using the website, you agree with storing cookies on your computer. Also you acknowledge that you have read and understand our Privacy Policy. If you do not agree leave the website.OKMore information about cookies Last modified: 2023/05/22 07:26by danitool