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GPIO mappings for Tegra2 Seaboard.
From U-Boot you can read and write these GPIOs using the following commands.
gpio input <port in decimal> <bit>
gpio output <port in decimal> <bit> <0|1>
The rows with ??? at the end have not been tested yet.
The rows with !!! at the end have been tested but fail to behave as expected.
Function Pin Primary Name GPIO Name Port Bit
-------------------------------------------------------------------------------
Lid AF2 GMI_WP_N GPIO_PC7 2 7
AC OK J6 GPIO_PV3 GPIO_PV3 21 3
On Key U6 GPIO_PV2 GPIO_PV2 21 2
Google Recovery AE6 GMI_AD8 GPIO_PH0 7 0
Write Protect AH6 GMI_AD11 GPIO_PH3 7 3 !!!
NVIDIA Recovery AG9 GMI_OE_N GPIO_PI1 8 1
Developer Mode P2 GPIO_VP0 GPIO_PV0 21 0
Headphone Detect M25 SPI2_MISO GPIO_PX1 23 1
Disable Charge P24 SPI2_SCK GPIO_PX2 23 2 ???
Battery Low P28 SPI2_CS2_N GPIO_PW3 22 3 ???
UART Disable AD5 GMI_CS6 GPIO_PI3 8 3