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= Fast Mode<br> =
Fast Mode, : set up UART2 until system reboot or halt. Using user space to configure mux and disabling disable bluethoot. Default kernel binaries and source have has disabled TWL4030 PCM voice interface output pins to high impedance, otherwise this module forces the level of mcbsp3_fsx and mcbsp3_clkx pins. To make sure, go to ~/sound/soc/codecs/twl4030.c file already read: <br>
<pre> 0x04, /* REG_VOICE_IF (0xF) */</pre>
=== Configure IGEP ===
Log with root user via SSH or Serial cable.<br>
Go to /sys/kernel/debug/omap_mux/<br>
Set sdmmc2_dat5 to GPIO137 mode(4):
signals: mcbsp3_dr | uart2_rts | NA | NA | gpio_141 | hsusb3_tll_data5 | NA | safe_mode
root@localhost:/sys/kernel/debug/omap_mux#
</pre>
=== Test UART2 in J990<br> ===