Rock5/hardware/5b/gpio

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    ROCK 5 >  Hardware >  ROCK 5B hardware details >  GPIO

General purpose input-output (GPIO) connector

ROCK 5B has one 40-pin expansion header. Each pin is distinguished by color.

GPIO number	Function7	Function6	Function5	Function4	Function3	Function2	Function1	Pin#	Pin#	Function1	Function2	Function3	Function4	Function5	GPIO number
							+3.3V	1	2	+5.0V
139		I2S1_SDO2_M0	I2C7_SDA_M3	UART8_CTSN_M0	PWM15_IR_M1	CAN1_TX_M1	GPIO4_B3	3	4	+5.0V
138	I2S1_SDO1_M0	I2C7_SCL_M3	UART8_RTSN_M0	SPI0_CS0_M1	PWM14_M1	CAN1_RX_M1	GPIO4_B2	5	6	GND
115			SPI1_CS1_M1	I2C8_SDA_M4	UART7_CTSN_M1	PWM15_IR_M0	GPIO3_C3	7	8	GPIO0_B5	UART2_TX_M0	I2S1_MCLK_M1	I2C1_SCL_M0		13
							GND	9	10	GPIO0_B6	UART2_RX_M0	I2S1_SCLK_M1	I2C1_SDA_M0		14
113					SPI1_CLK_M1	UART7_RX_M1	GPIO3_C1	11	12	GPIO3_B5	PWM12_M0	CAN1_RX_M0	UART3_TX_M1	I2S2_SCLK_M1	109
111					SPI1_MOSI_M1	I2C3_SCL_M1	GPIO3_B7	13	14	GND
112				SPI1_MISO_M1	I2C3_SDA_M1	UART7_TX_M1	GPIO3_C0	15	16	GPIO3_A4	SPI4_CS1_M1	UART8_RTSN_M1	I2S3_SDI		100
							+3.3V	17	18	GPIO4_C4	I2C7_SDA_M1	UART9_RTSN_M0	SPI3_MISO_M0	PWM5_M2	148
42				UART4_RX_M2	PDM1_SDI3_M1	SPI0_MOSI_M2	GPIO1_B2	19	20	GND
41					PDM1_SDI2_M1	SPI0_MISO_M2	GPIO1_B1	21	22	SARADC_IN4
43				UART4_TX_M2	PDM1_CLK1_M1	SPI0_CLK_M2	GPIO1_B3	23	24	GPIO1_B4	SPI0_CS0_M2	PDM1_CLK0_M1	UART7_RX_M2		44
							GND	25	26	GPIO1_B5	SPI0_CS1_M2	UART7_TX_M2			45
150			PWM7_IR_M3	SPI3_CLK_M0	UART7_CTSN_M0	I2C0_SDA_M1	GPIO4_C6	27	28	GPIO4_C5	I2C0_SCL_M1	UART9_CTSN_M0	SPI3_MOSI_M0	PWM6_M2	149
63				UART1_CTSN_M1	I2C8_SDA_M2	PWM15_IR_M3	GPIO1_D7	29	30	GND
47			UART1_RX_M1	I2C5_SDA_M3	SPDIF_TX_M0	PWM13_M2	GPIO1_B7	31	32	GPIO3_C2	PWM14_M0	UART7_RTSN_M1	I2C8_SCL_M4	SPI1_CS0_M1	114
103						PWM8_M0	GPIO3_A7	33	34	GND
110			I2S2_LRCK_M1	UART3_RX_M1	CAN1_TX_M0	PWM13_M0	GPIO3_B6	35	36	GPIO3_B1	PWM2_M1	UART2_TX_M2			105
0						REFCLK_OUT	GPIO0_A0	37	38	GPIO3_B2	PWM3_IR_M1	UART2_RX_M2	I2S2_SDI_M1		106
							GND	39	40	GPIO3_B3	UART2_RTSN	I2S2_SDO_M1			107

Rockchip RK3588 GPIO has 5 banks, GPIO0 to GPIO4, each bank has 32pins, naming as below:

GPIO0_A0 ~ A7 
GPIO0_B0 ~ B7
GPIO0_C0 ~ C7
GPIO0_D0 ~ D7
   
GPIO1_A0 ~ A7
....
GPIO1_D0 ~ D7

For Rockchip 5.10 kernel, the GPIO number can be calculated as below, take GPIO4_C6 (PIN27 on 40PIN GPIO Heaher) as an example:

GPIO4_C6 = 4*32 + 2*8 + 6 = 150
(A=0, B=1, C=2, D=3)

To set GPIO4_C6 output

# cd /sys/class/gpio
# echo 150 > export
# cd gpio150
# echo out > direction
# echo 1 > value     # output high
# echo 0 > value     # output low