Because we don’t have enough GPIO for use, we went to use the four pins of I2S0(We don’t need to use this specific function).
I find the pin mapping in this file “Jetson_TX1_Generic_Customer_Pinmux_Customer_Release.xlsm” and the four pins were mapping to GPIO_PB00 ~ GPIO_PB03, now I have two question as below:
1.I could find the TK1 GPIO definition in arch/arm/mach-tegra/gpio-names.h, but where is the TX1?
I try to control the I2S0_SDIN(GPIO3_PB01) as GPIO9 which TK1 defined, but this pin couldn’t output what I expect.
2.Continuous the first question, should I modify the setting for I2S0 which may be set in bootloader or device tree.