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It was tested using alternate peripherals like UARTs and GPIOs.<br>
=====Second way: =====
===== Second way : ===== Configure kernel sources. Configuration will be permanent. There are many ways to edit source code, this method is focused for igep0020 RC without igep0022 support. <br> Go to [http://git.igep.es/?p=pub/scm/linux-omap-2.6.git;a=blob_plain;f=arch/arm/mach-omap2/board-igep0020.c;hb=db3cb47adf10504d3847d54927de50b2fa94c008 $(kernel path)/arch/arm/mach-omap2/board-igep0020.c] and search next line: <br> <pre> #ifdef CONFIG_OMAP_MUXstatic struct omap_board_mux board_mux[] __initdata = { /* SMSC9221 LAN Controller */ OMAP3_MUX(MCSPI1_CS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), /* Display Sub System */ OMAP3_MUX(DSS_PCLK, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_HSYNC, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_VSYNC, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_ACBIAS, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA0, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA1, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA2, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA3, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA4, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA5, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA6, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA7, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA8, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA9, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA10, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA11, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA12, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA13, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA14, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA15, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA16, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA17, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA18, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA19, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA20, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA21, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA22, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA23, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(HDQ_SIO, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), /* McBSP 2 */ OMAP3_MUX(MCBSP2_FSX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT), OMAP3_MUX(MCBSP2_CLKX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT), OMAP3_MUX(MCBSP2_DR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT), OMAP3_MUX(MCBSP2_DX, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), /* Serial ports */ OMAP3_MUX(UART1_TX, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(UART1_RX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN), OMAP3_MUX(UART1_RTS, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(UART1_CTS, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN), OMAP3_MUX(UART2_TX, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(UART2_RX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT), { .reg_offset = OMAP_MUX_TERMINATOR },};</pre> "static struct omap_board_mux board_mux[] __initdata". Edit the following fields:<pre>#ifdef CONFIG_OMAP_MUXstatic struct omap_board_mux board_mux[] __initdata = { /* SMSC9221 LAN Controller */ OMAP3_MUX(MCSPI1_CS2, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), /* Display Sub System */ OMAP3_MUX(DSS_PCLK, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_HSYNC, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_VSYNC, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_ACBIAS, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA0, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA1, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA2, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA3, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA4, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA5, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA6, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA7, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA8, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA9, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA10, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA11, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA12, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA13, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA14, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA15, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA16, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA17, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA18, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA19, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA20, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA21, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA22, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(DSS_DATA23, OMAP_MUX_MODE7 | OMAP_PIN_OUTPUT), OMAP3_MUX(HDQ_SIO, OMAP_MUX_MODE4 | OMAP_PIN_INPUT), /* McBSP 2 */ OMAP3_MUX(MCBSP2_FSX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT), OMAP3_MUX(MCBSP2_CLKX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT), OMAP3_MUX(MCBSP2_DR, OMAP_MUX_MODE0 | OMAP_PIN_INPUT), OMAP3_MUX(MCBSP2_DX, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), /* Serial ports */ OMAP3_MUX(UART1_TX, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(UART1_RX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN), OMAP3_MUX(UART1_RTS, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(UART1_CTS, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN), OMAP3_MUX(UART2_TX, OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT), OMAP3_MUX(UART2_RX, OMAP_MUX_MODE0 | OMAP_PIN_INPUT), { .reg_offset = OMAP_MUX_TERMINATOR },};</pre> When dss_* are configured in safe mode, GPIO170 are configured in low value '''Compile kernel source code''' Use this [[Linux Kernel 2.6.35.y|tutorial]] (Kernel) and this [http://labs.igep.es/index.php/The_IGEP_X-loader other] (IGEPxloader) to install Linaro Headless with your custom kernel in SD card. You can compile the IGEPxloader, but is not necessary.<br> '''Under construction'''
= Edit mux =
