MT6260 » History » Version 6
unrznbl, 02/26/2019 04:17 AM
1 | 1 | craig_comstock | h1. MT6260 |
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3 | Mediatek 2G capable CPU. |
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4 | |||
5 | h2. Memory Map |
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6 | |||
7 | 2 | craig_comstock | RAM 0x40000000 LENGTH ? (based on some code searching, not tested yet) |
8 | SRAM 0x70000000 LENGTH 0xcfff |
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9 | 1 | craig_comstock | CONFIG_BASE at 0x80000000 |
10 | CHIP_ID at 0x80000008 |
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11 | 2 | craig_comstock | |
12 | 5 | unrznbl | h2. Base-band Notes |
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14 | init sequence: |
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15 | - gpio |
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16 | - base-band serial interface |
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17 | - base-band parallel interface |
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18 | - auto power control |
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19 | - auto frequency control |
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20 | - download/upload |
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21 | - base-band front end |
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22 | - finite impulse response filter |
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23 | - auxiliary analog digital converter |
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24 | - chip settings |
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25 | - coefficients |
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26 | - turn power on |
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27 | |||
28 | 6 | unrznbl | research notes: |
29 | Am looking at baseband init code that already exists: |
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30 | https://git.osmocom.org/osmocom-bb/tree/src/target/firmware/rf/mt6139.c |
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31 | https://git.osmocom.org/uboot-mt623x/tree/board/mtk/sciphone_g2/mt6140.c |
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32 | and correlating those with sources for 6260 and 6737. |
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33 | |||
34 | Also looking at 6235 data sheet which has rather complete information about baseband resources: http://read.pudn.com/downloads157/doc/comm/701374/MT6235%20GSM%20GPRS%20Baseband%20Processor_%20Data%20Sheet_1.02.pdf |
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36 | 1 | craig_comstock | h2. Links |
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38 | 6 | unrznbl | * Here someone has shared a potentially VERY helpful Datasheet for 6260: https://drive.google.com/file/d/14UcrFRB3rYW2bjttFZ7GA4zAi_HL-yjZ/view?usp=sharing |
39 | 3 | gnutoo | * More information and references can be found on the [[Fernvale]] wiki page. |