AM625: Please provide am625 gpio number table.

Hello Andrew

Thank you for the query.

The GPIO information mapped to the device pins is available in the data sheet.

Please elaborate your requirement.

Regards,

Sreenivasa

Hi Kallikuppa,

Thanks for your reply.

I have to use the gpio number in both places.

1. It is necessary to read and write gpio to determine the lvds panel dts to be imported. I have previously released a thread on this part of the requirements.

link: AM625: Is it possible to use GPIO0_41 input value to switch which lvds dts node to use? How to achieve it?

2. The setting of i2c touchscreen pin, below is the touchscreen driver segment given by the panel manufacturer, and I want to use I2C1 and set GPIO1_31 as interrupt pin, what are I2C_BUS_NUMBER and GPIO_INT?

#define I2C_BUS_NUMBER		2						//TODO: modify to set your I2C Bus
#define GPIO_INT			80//GPIOB(16)			//TODO: modify to set your INT pin
#define GPIO_IRQ			gpio_to_irq(GPIO_INT)	//TODO: modify to set your IRQ number

So I need a method of calculating GPIO_NUMBER or a comparison table.

Thanks,

Andrew

Hello Andrew,

Thank you.

Please help me understand the development environment you are using.

regards,

Sreenivasa

Hi Kallikuppa,

I using Arago on AM625. (SDK version: 08.06.00.42)

Thanks,

Andrew

Hello Andrew,

Thank you.

Please read through the below sections in the data sheet and TRM.

Data sheet

6.3.11 GPIO

6.3.11.1 MAIN Domain

Table 6-23. GPIO0 Signal Descriptions

GPIO_0..91

Table 6-24. GPIO1 Signal Descriptions

GPIO_0..51

6.3.11.2 MCU Domain

Table 6-25. MCU_GPIO0 Signal Descriptions

MCU_GPIO0_0..23

TRM

6.1.2 Pad Configuration Register Modules

6.1.2.3 Pad Configuration Ball Names

Table 6-2046. Pad Configuration Ball Names

 12.2.1 General-Purpose Interface (GPIO)

Table 12-259 describes the GPIO I/O signals.

Table 12-259. GPIO I/O   Signals

12.2.5 General Connectivity Registers

Each register is 32 bit - 0..31 GPIOs.

You can find the GPIO required and then calculate the register using the above sections of the data sheet or TRM.

Let me know if this helps. 

Regards,

Sreenivasa