[][openwrt][change msdc clock source to 208M]

[Description]
Change infra_fmsdc clock source to 208M.
MT7981's MSDC's spec only meets eMMC 4.5.
And its design only utilizes 208M src pll mux.
Users can switch to 208M/200M or other clock rate.

[Release-log]
test ok

Change-Id: Ibd564a4cdbb2fd8f58057f93a8018630ddc0b8ec
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/9298049
1 file changed
tree: abfd3995199319e64544422d7278c51091c8f52f
  1. 21.02/
  2. autobuild_mac80211_release/
  3. feed/
  4. master/
  5. scripts/
  6. tools/
  7. .checkpatch.conf
  8. .clang-format
  9. .gitignore
  10. prepare_sdk.sh
  11. Readme.md
Readme.md

Brief introduction for using MediaTek released OpenWrt SDK

1. Build system setup

2. Clone vanilla OpenWrt

Currently two release branches are supported:

  1. 21.02 This is the current in-use branch

    git clone -b openwrt-21.02 https://git.openwrt.org/openwrt/openwrt.git
    
  2. master (will be 24.0x branch later) The next version in development

    git clone https://git.openwrt.org/openwrt/openwrt.git
    

3. Add MediaTek OpenWrt feed

cd openwrt
echo "src-git mtk_openwrt_feed https://git01.mediatek.com/openwrt/feeds/mtk-openwrt-feeds" >> feeds.conf.default
./scripts/feeds update -a
./scripts/feeds install -a

4. Apply MediaTek OpenWrt files and patches

  1. 21.02 branch

    cp -af ./feeds/mtk_openwrt_feed/21.02/files/* .
    cp -af ./feeds/mtk_openwrt_feed/tools .
    for file in $(find ./feeds/mtk_openwrt_feed/21.02/patches-base -name "*.patch" | sort); do patch -f -p1 -i ${file}; done
    for file in $(find ./feeds/mtk_openwrt_feed/21.02/patches-feeds -name "*.patch" | sort); do patch -f -p1 -i ${file}; done
    
  2. master branch

    cp -af ./feeds/mtk_openwrt_feed/master/files/* .
    for file in $(find ./feeds/mtk_openwrt_feed/master/patches-base -name "*.patch" | sort); do patch -f -p1 -i ${file}; done
    

5. Configuration

make menuconfig
  1. 21.02 branch

    Target System -> MediaTek Ralink ARM
    Subtarget -> MT7981 / MT7986 / MT7988
    Target Profile -> select as needed
    
  2. master branch

    Target System -> MediaTek Ralink ARM
    Subtarget -> Filogic 8x0 (MT798x)
    Target Profile -> select as needed
    

6. Build

make V=s -j$(nproc)