The next tables show you all the mux capabilities:
=== J990 connector === -There are some peripherals than can be connected to J990 like mm3 and camera, but is not used in this how-to. -High Speed USB 3 is only available on Omap 3530 in the next pads: 3: HSUSB3_TLL_NXT<br> 4: HSUSB3_TLL_D4<br> 5: HSUSB3_TLL_DIR <br> 6: HSUSB3_TLL_D6<br> 7: HSUSB3_TLL_STP<br> 8: HSUSB3_TLL_D7 <br> 10: HSUSB3_TLL_D5 <br> {| cellspacing="1" cellpadding="1" border="1" align="JUSTIFY" style="width: 960px; height: 1463px;"|-| Pad: | Connect to: | Default peripheral (mode=0) | Default function: | Other available peripherals: | style="text-align: left;" | Share with:|-| 1 | VIO 1V8 | - | Power 1v8 | - | -<br>|-| 2 | DC 5V | - | Power 5v | - | -<br>|-| 3 | MMC2_DAT7 | MMC2_DAT7 | Reset Wlan | MMC2_CLKIN(mode=1) MMC3_DAT3(mode=3) GPIO_139(mode=4) | <div align="JUSTIFY">'''Wlan:''' This pad can reset Wlan peripheral using Omap GPIO low level (GND). If you reset continuously Wlan all their pads are in High Impedance. Also you can disable Wlan from J990 low level.</div> <div align="JUSTIFY">'''Omap: '''protect Omap pad if you don't use it.'''(1)'''</div>|-| 5 | MMC2_DAT6 | MMC2_DAT6 | Power down Wlan | MMC2_DIR_CMD(mode=1) MMC3_DAT2(mode=3) GPIO_138(mode=4) | <div align="JUSTIFY">'''Wlan:''' This pad can power down Wlan peripheral using Omap GPIO low level (GND), power up removing GND. Also you can power down Wlan from J990 low level.</div> <div align="JUSTIFY">'''Omap: '''protect Omap pad if you don't use it.'''(1)'''</div>|-| 7 | MMC2_DAT5 | MMC2_DAT5 | Reset Bluethoot | MMC2_DIR_DAT1(mode=1) MMC3_DAT1(mode=3) GPIO_137(mode=4) | <div align="JUSTIFY">'''Bluethoot: '''This pad can reset Bluethoot peripheral using Omap GPIO low level (GND). If you reset continuously Bluethoot all their pads are in High Impedance. Also you can disable Bluethoot from J990 low level.'''Omap: '''protect Omap pad if you don't use it.'''(1)'''<br> </div>|-| 9 | MMC2_DAT4 | MMC2_DAT4 | - | MMC_DIR_DAT0(mode=1) MMC3_DAT0(mode=3) GPIO136(mode=4) | <div align="JUSTIFY">'''Wlan: '''Protect Wlan if you don' use it. See MMC2_DAT7 pad.</div> <div align="JUSTIFY">'''Omap: '''protect Omap pad if you don't use it.'''(1)'''</div>|-| 11 | MMC2_DAT3 | MMC2_DAT3 | Transfer data between Omap and Wlan | McSPI3_CS0(mode=1) GPIO_135(mode=4) | <div align="JUSTIFY">'''Wlan: '''Protect Wlan if you don' use it. See MMC2_DAT7 pad.</div> <div align="JUSTIFY">'''Omap: '''protect Omap pad if you don't use it.'''(1)'''</div>|-| 13 | MMC2_DAT2 | MMC2_DAT2 | Transfer data between Omap and Wlan | McSPI3_CS1(mode=1)<br> GPIO_134(mode=4) | <div align="JUSTIFY">'''Wlan: '''Protect Wlan if you don' use it. See MMC2_DAT7 pad.</div> <div align="JUSTIFY">'''Omap: '''protect Omap pad if you don't use it.'''(1)'''</div>|-| 15 | MMC2_DAT1 | MMC2_DAT1 | Transfer data between Omap and Wlan | GPIO_133(mode=4) | <div align="JUSTIFY">'''Wlan: '''Protect Wlan if you don' use it. See MMC2_DAT7 pad.</div> <div align="JUSTIFY">'''Omap: '''protect Omap pad if you don't use it.'''(1)'''</div>|-| 17 | MMC2_DAT0 | MMC2_DAT0 | Transfer data between Omap and Wlan | McSPI3_SOMI(mode=1) GPIO_132(mode=4) | <div align="JUSTIFY">'''Wlan: '''Protect Wlan if you don' use it. See MMC2_DAT7 pad.</div> <div align="JUSTIFY">'''Omap: '''protect Omap pad if you don't use it.'''(1)'''</div>|-| 19 | MMC2_CMD | MMC2_CMD | Control Wire for bus MMC2 (Wlan) | McSPI3_SIMO(mode=1) GPIO_131(mode=4) | <div align="JUSTIFY">'''Wlan: '''Protect Wlan if you don' use it. See MMC2_DAT7 pad.</div> <div align="JUSTIFY">'''Omap: '''protect Omap pad if you don't use it.'''(1)'''</div>|-| 21 | MMC2_CLK0 | MMC2_CLK | Clock for MMC2 (Wlan) | McSPI3_CLK(mode=1) GPIO_130(mode=4) | <div align="JUSTIFY">'''Wlan: '''Protect Wlan if you don' use it. See MMC2_DAT7 pad.</div> <div align="JUSTIFY">'''Omap: '''protect Omap pad if you don't use it.'''(1)'''</div>|-| 4 | MCBSP3_DX | MCBSP3_DX | Transmitted serial Data (Bluethoot audio) | UART2_CTS(mode=1) GPIO_140(mode=4) | <div align="JUSTIFY">'''TPS65950:''' disable it via kernel '''(2) '''If you don't use it.</div>|-| 6 | MCBSP3_CLKX | MCBSP3_CLKX | Transmitted serial Clock (Bluethoot audio) | UART2_TX(mode=1) GPIO_142(mode=4) | <div align="JUSTIFY">'''Bluethoot: '''Protect Bluethoot if you don' use it. See MMC2_DAT5 pad.</div> <div align="JUSTIFY"><br> </div> <div align="JUSTIFY">'''TPS65950:''' disable it via kernel '''(2) '''If you don't use it.</div>|-| 8 | MCBSP3_FSX | MCBSP3_FSX | Transmited Frame Syncronisation (Bluethoot audio) | UART2_RX(mode=1) GPIO_143(mode=4) | <div align="JUSTIFY">'''Bluethoot: '''Protect Bluethoot if you don' use it. See MMC2_DAT5 pad.</div> <div align="JUSTIFY"><br> </div> <div align="JUSTIFY">'''TPS65950:''' disable it via kernel '''(2) '''If you don't use it.</div>|-| 10 | MCBSP3_DR | MCBSP3_DR | Received Serial Data (Bluethoot audio) | UART2_RTS(mode=1) GPIO_141(mode=4) | <div align="JUSTIFY">'''TPS65950:''' disable it via kernel '''(2) '''If you don't use it.</div>|-| 12 | MCBSP1_DX | MCBSP1_DX | Transmited serial Data (not used) | McSPI4_SIMO(mode=1) McBSP3_DX(mode=2) GPIO_158(mode=4) | -<br>|-| 14 | MCBSP1_CLKX | MCBSP1_CLKX | Transmited serial clock (not used) | McBSP3_CLKX(mode=2)<br> GPIO_162(mode=4) | -<br>|-| 16 | MCBSP1_FSX | MCBSP1_FSX | Transmited Frame Syncronization (not used) | McSPI4_CS0(mode=1) McBSP3_FSX(mode=2) GPIO_161(mode=4) | -<br>|-| 18 | MCBSP1_DR | MCBSP1_DR | Received Serial Data (not used) | McSPI4_SOMI(mode=1) McBSP3_DR(mode=2) GPIO_159(mode=4) | -<br>|-| 20 | MCBSP1_CLKR | MCBSP1_CLKR | Received Clock (not used) | GPIO_156(mode=4)<br> | -<br>|-| 22 | MCBSP1_FSR | MCBSP1_FSR | Received frame syncronization (not used) | GPIO_157(mode=4)<br> | -<br>|-| 23 | I2C2_SDA | I2C2_SDA | I2C Data | GPIO_183(mode=4)<br> | <div align="JUSTIFY">'''Cam connector:''' Check and RC14 is not welded or don't use it.<br></div>|-| 24 | I2C2_SCL | I2C2_SCL | I2C Clock | GPIO_168(mode=4)<br> | '''Cam connector:''' Check and RC13 is not welded or don't use it.|-| 25 | REGEN | - | Master/Slave control power TPS65950<br> | - | -<br>|-| 26 | nRESET | - | Read Reset Omap | - | -<br>|-| 27 | GND | - | GND | - | -<br>|-| 28 | GND | - | GND | - | -<br>|} '''(1):''' To protect Omap pads from external signals, configure Mux in mode=7 (safe_mode). With this mode, buffer is configured in high impedance '''(2):''' Disable TPS65950 go to file sound/soc/codecs/twl4030.c change line 54 Code: <pre>0x00, /* REG_VOICE_IF (0xF) */</pre> to Code: <pre>0x04, /* REG_VOICE_IF (0xF) */</pre> === J960 connector === J960 connector can not use mux capabilities, because this connector is dedicated to use RS232 comunication. Default hardware/software configuration is:<span lang="en" id="result_box"><span class="hps"></span></span><br> {| cellspacing="1" cellpadding="1" border="1" style="width: 498px; height: 381px;"|-| Pad | Connect to: | Default periphera: | Other peripheral: | Share with:<br> | Default function:<br>|-| 1 | - | - | - | -<br> | <br>|-| 2 | RS232_RX2 | UART3_RX | UART2_RX | -<br> | Kernel console params'''(4)'''<br>|-| 3 | RS232_TX2 | UART3_TX | UART2_TX | -<br> | Kernel console params'''(4)'''<br>|-| 4 | - | - | - | -<br> | -<br>|-| 5 | GND | - | - | -<br> | -<br>|-| 6 | GND | - | - | -<br> | -<br>|-| 7 | - | - | - | -<br> | -<br>|-| 8 | RS232_TX1 | UART1_TX | UART3_TX | RS485 interface'''(5)'''<br> | -<br>|-| 9 | RS232_RX1 | UART1_RX | UART3_RX | RS485 interface'''(5)'''<br> | -<br>|-| 10 | - | - | - | -<br> | -<br>|} <br> - Other peripherals can be configured via hardware, placing/replacing some resistances. See IGEPv2 Schematic for more information. '''(4):''' To set other functionalities to UART3 (/dev/ttyS2) edit igep.ini file: Search line: <pre>console=ttyS2,115200n8</pre> Replace by: <pre>; console=ttyS2,115200n8</pre> '''(5): '''Allows to use UART1 as RS232 instead of EI485, edit igep.ini:<br> Search line: <pre>board.ei485=yes</pre> Replace by: <pre>board.ei485=no</pre> === J400 connector === J400 is used to JTAG (Joint Test Action Group). JTAG is a standardized serial protocol widely used in printed circuit boards. Its main functions are:<br> -Debug the software of an embedded system directly <br>-Storing firmware<br> -Boundary scan testing More information: [http://es.wikipedia.org/wiki/JTAG http://es.wikipedia.org/wiki/JTAG]. Only Pad 13 and 14 have mux capabilities, for example you can use them like GPIO(mode=4). More information in IGEPv2 Schematic.<br> === J970 connector === This connector don't have mux capabilities. J970 is used to implement a keypad. It is controlled by TPS65950, this method avoid reduce Omap proces capabilities. TPS65950 send via I2C1 all the interrupt request. Their characteristics are:<br> - Can handle up to 8 x 8 keypads, IGEPv2 can handle up to 4 x 4 keypads.<br>- Optionally, you can decode via Omap software.<br>- Event detection on key press and key release.<br>- Multikey press detection, can detect up 2 keys at the same time.<br>- Long-key detection on prolonged key press.<br>- Programmable time-out on permanent key press or after keypad release. More information in TPS65950 datasheets.<br> === JC30 connector === JC30 is used to connect a camera for capture video or image. Omap have the processing capability to connect RAW image-sensor modules via this connector. There are some peripherals than can be connected to JC30 like like CAM, SSI and CSI, but is not used in this how-to. GPIO are the default peripheral.<br> Before use this connector be careful at these points: - Pad 1 can be used to power down wifi module if RD41 is short circuit, replace RD42 for this porpouse.<br>- Pad 2 can be used to reset wifi module if RD43 is short circuit, replace RD44 for this porpouse.<br>- Pad 21 can be connected to I2C2_SCL, that wire is shared with J990 connector and I2C2_SCL peripheral. Placing/replacing RC13 for tis porpouse.<br>- Pad 22 can be connected to I2C2_SDA, that wire is shared with J990 connector and I2C2_SDA peripheral. Placing/replacing RC14 for tis porpouse. === JA42 connector === JA42 is used for DVI (Digital Video Interface) control part, TouchScreen control and SPI1.<br> -There are some peripherals than can be connected to JA42 like MM3, MM2, SSI, USB and HW_DBG, but is not used in this how-to. Some pads have mux capabilities: {| cellspacing="1" cellpadding="1" border="1" align="JUSTIFY" style="width: 804px; height: 343px;"|-| Pad: | Connect to: | Default peripheral (mode=0) | Default function: | Other available peripherals: | style="text-align: left;" | Share with:|-| 1 | VIO 1V8 | - | Power 1v8 | - | -<br>|-| 2 | SYS_BOOT5 | SYS_BOOT5<br> | Omap boot config | MMC2_DIR_DAT(mode=1) GPIO_7 (mode=4) | -<br>|-| 3 | DC_5V | - | Power 5v | - | <div align="JUSTIFY">-<br></div>|-| 4 | GND | - | GND | - | <div align="JUSTIFY"><br></div> <div align="JUSTIFY">-<br></div>|-| 5 | SYS_BOOT0 | SYS_BOOT0<br> | Omap boot config | GPIO_2 (mode=4) | <div align="JUSTIFY"><br> -<br> </div>|-| 6 | SYS_BOOT1 | SYS_BOOT1<br> | Omap boot config<br> | GPIO_3 (mode=4) | <div align="JUSTIFY">-<br></div> <div align="JUSTIFY"><br></div>|-| 7 | DVI_VSYNC | DSS_VSYNC | LCD vertical sync (Expansion)<br> | GPIO_68(mode=4) | <div align="JUSTIFY"><br></div> <div align="JUSTIFY">TFP410 '''(6)'''<br></div>|-| 8 | DVI_HSYNC | DSS_HSYNC | LCD Horitzontal sync (Expansion) | GPIO_67 (mode=4)<br> | <div align="JUSTIFY"><br></div> <div align="JUSTIFY"><div align="JUSTIFY">TFP410 '''(6)'''<br></div></div>|-| 9 | DVI_ACBIAS | DSS_ACBIAS | LCD Control (Expansion) | GPIO_133(mode=4) | <div align="JUSTIFY"><br></div> <div align="JUSTIFY"><div align="JUSTIFY">TFP410 '''(6)'''<br></div></div>|-| 10 | DVI_PUP | - | Control signal for DVI controler (Expansion) | - | <div align="JUSTIFY"><br></div> <div align="JUSTIFY">TFP410 '''(6)'''</div>|-| 11 | DVI_PCLK | DSS_PCLK | LCD clock (Expansion) | GPIO_66 (mode=4)<br> | <div align="JUSTIFY"><br></div> <div align="JUSTIFY">TFP410 '''(6)'''</div>|-| 12 | TS_nPEN_IRQ | McSPI1_CS1 | Touchscreen control (Expansion) | MMC3_CMD(mode=3) GPIO_175 (mode=4) | <div align="JUSTIFY">-<br></div> <div align="JUSTIFY"><br></div>|-| 13 | LCD_QVGA/nVGA | McBSP4_DX | Touchscreen control (Expansion) | GPIO_154 (mode=4)<br> | <div align="JUSTIFY">-<br></div>|-| 14 | LCD_ENVDD | McBSP4_DR | Touchscreen control (Expansion) | GPIO_153 (mode=4)<br> | -<br>|-| 15 | LCD_RESB | McBSP4_FSX | Touchscreen control (Expansion) | GPIO_155 (mode=4)<br> | <div align="JUSTIFY"><br></div> <div align="JUSTIFY">-<br> </div> <div align="JUSTIFY"><br></div>|-| 16 | LCD_INI | McBSP4_CLKX | Touchscreen control (Expansion) | GPIO_152 (mode=4)<br> | <div align="JUSTIFY">-<br></div>|-| 17 | MCSPI1_CLK | McSPI1_CLK<br> | Touchscreen control (Expansion) | GPIO_171 (mode=4) | -<br>|-| 18 | MCSPI1_SIMO | McSPI1_SIMO | Touchscreen control (Expansion) | GPIO_172 (mode=4) | -<br>|-| 19 | MCSPI1_CS0 | McSPI1_CS0 | Touchscreen control (Expansion) | GPIO_174 (mode=4) | -<br>|-| 20 | MCSPI1_SOMI | McSPI1_SOMI | Touchscreen control (Expansion) | GPIO_173 (mode=4) | -<br>|} <br> '''(6):''' TFP410: Converts DVI signal to HDMI. They share the same video signal.<br> === JA41 connector === JA41 is used for DVI (Digital Video Interface) data part.<br> -There are some peripherals than can be connected to JA41 like DSSVENC, HW, DSS and SDI, but is not used in this how-to. Some pads have mux capabilities: {| cellspacing="1" cellpadding="1" border="1" align="JUSTIFY" style="width: 669px; height: 1064px;"|-| Pad: | Connect to: | Default peripheral (mode=0) | Default function: | Other available peripherals: | style="text-align: left;" | Share with:|-| 1 | VIO 3V3 | - | Power 3v3 | - | -<br>|-| 2 | GND | -<br> | GND | -<br> | -<br>|-| 3 | DVI_DATA0 | DSS_D0 | LCD pixel data bit<br> | UART1_CTS(mode=2) GPIO_70(mode=4) | TFP410 '''(6)'''|-| 4 | DVI_DATA1 | DSS_D1 | LCD pixel data bit | UART1_RTS(mode=2) GPIO_71(mode=4) | <div align="JUSTIFY"><br></div> <div align="JUSTIFY">TFP410 '''(6)'''</div>|-| 5 | DVI_DATA2 | DSS_D2 | LCD pixel data bit | GPIO_72(mode=4) | TFP410 '''(6)'''|-| 6 | DVI_DATA3 | DSS_D3 | LCD pixel data bit | GPIO_73(mode=4) | TFP410 '''(6)'''<div align="JUSTIFY"><br></div>|-| 7 | DVI_DATA4 | DSS_D4 | LCD pixel data bit | UART3_RX(mode=2) GPIO_74(mode=4) | <div align="JUSTIFY">TFP410 '''(6)'''</div> <div align="JUSTIFY"><br></div>|-| 8 | DVI_DATA5 | DSS_D5 | LCD pixel data bit | UART3_TX(mode=2) GPIO_75(mode=4)<br> | <div align="JUSTIFY">TFP410 '''(6)'''</div> <div align="JUSTIFY"><br></div>|-| 9 | DVI_DATA6 | DSS_D6 | LCD pixel data bit | UART1_TX(mode=2) GPIO_76(mode=4) | <div align="JUSTIFY">TFP410 '''(6)'''</div> <div align="JUSTIFY"><div align="JUSTIFY"><br></div></div>|-| 10 | DVI_DATA7 | DSS_D7 | LCD pixel data bit | UART1_RX(mode=2) GPIO_77(mode=4) | <div align="JUSTIFY"><br></div> <div align="JUSTIFY">TFP410 '''(6)'''</div>|-| 11 | DVI_DATA8 | DSS_D8 | LCD pixel data bit | GPIO_78(mode=4)<br> | <div align="JUSTIFY"><br></div> <div align="JUSTIFY">TFP410 '''(6)'''</div>|-| 12 | DVI_DATA9 | DSS_D9 | LCD pixel data bit | GPIO_79(mode=4) | <div align="JUSTIFY">TFP410 '''(6)'''</div> <div align="JUSTIFY"><br></div>|-| 13 | DVI_DATA10 | DSS_D10 | LCD pixel data bit | GPIO_80(mode=4)<br> | <div align="JUSTIFY">TFP410 '''(6)'''</div>|-| 14 | DVI_DATA11 | DSS_D11 | LCD pixel data bit | GPIO_81(mode=4)<br> | TFP410 '''(6)'''|-| 15 | DVI_DATA12 | DSS_D12 | LCD pixel data bit | GPIO_82(mode=4)<br> | <div align="JUSTIFY"><br></div> <div align="JUSTIFY">TFP410 '''(6)''' </div> <div align="JUSTIFY"><br></div>|-| 16 | DVI_DATA13 | DSS_D13 | LCD pixel data bit | GPIO_83(mode=4)<br> | <div align="JUSTIFY">TFP410 '''(6)'''</div>|-| 17 | DVI_DATA14 | DSS_D14 | LCD pixel data bit | GPIO_84(mode=4) | TFP410 '''(6)'''|-| 18 | DVI_DATA15 | DSS_D15 | LCD pixel data bit | GPIO_85(mode=4) | TFP410 '''(6)'''|-| 19 | DVI_DATA16 | DSS_D16 | LCD pixel data bit | GPIO_86(mode=4) | TFP410 '''(6)'''|-| 20 | DVI_DATA17 | DSS_D17 | LCD pixel data bit | GPIO_87(mode=4) | TFP410 '''(6)'''|-| 21<br> | DVI_DATA18 | DSS_D18 | LCD pixel data bit | DSS_D0 (mode=3) MCSPI3_CLK(mode=2) GPIO_88(mode=4) | TFP410 '''(6)'''|-| 22<br> | DVI_DATA19 | DSS_D19 | LCD pixel data bit | DSS_1 (mode=3) MCSPI3_SIMO(mode=2) GPIO_89(mode=4) | TFP410 '''(6)'''|-| 23<br> | DVI_DATA20 | DSS_D20 | LCD pixel data bit | DSS_D2 (mode=3) MCSPI3_SOMI(mode=2) GPIO_90(mode=4) | TFP410 '''(6)'''|-| 24<br> | DVI_DATA21 | DSS_D21 | LCD pixel data bit | DSS_3 (mode=3) MCSPI3_CSO(mode=2) GPIO_91(mode=4) | TFP410 '''(6)'''|-| 25<br> | DVI_DATA22<br> | DSS_D22<br> | LCD pixel data bit | DSS_D4 (mode=3) MCSPI3_CS1(mode=2) GPIO_92(mode=4) | TFP410 '''(6)'''|-| 26<br> | DVI_DATA23<br> | DSS_D23<br> | LCD pixel data bit | DSS_D5(mode=3) GPIO_93(mode=4) | TFP410 '''(6)'''|-| 27<br> | I2C3_SCL<br> | I2C3_SCL | I2C3 interface | GPIO_184(mode=4) | TXS0102DCUR<br>|-| 28<br> | I2C3_SDA<br> | I2C3_SDA | I2C3 interface | GPIO_185(mode=4) | TXS0102DCUR<br>|} <br> '''(6):''' TFP410: Converts DVI signal to HDMI. They share the same video signal.<br>
'''Under construction '''<br>