Difference between revisions of "How to use GPIO RK3568"

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 +
 
= Configuration =
 
= Configuration =
  
−
The RK3568 bank/bit notation for GPIOs must be formed as "GPIO<GPIO_bank>_<gpio_bit>" 
+
The RK3568 bank/bit notation for GPIOs must be formed&nbsp;as&nbsp;"GPIO<GPIO_bank>_<gpio_bit>"&nbsp;
  
 
The numeric value of GPIO&nbsp;is calculated as follows:
 
The numeric value of GPIO&nbsp;is calculated as follows:
Line 13: Line 14:
 
== RSB-4810 ==
 
== RSB-4810 ==
  
−
{| cellspacing="1" cellpadding="1" border="1"
+
{| border="1" cellpadding="1" cellspacing="1"
 
|-
 
|-
 
| GPIO Number
 
| GPIO Number
Line 19: Line 20:
 
| Numeric Representation
 
| Numeric Representation
 
|-
 
|-
−
| GPIO1<br/>
+
| GPIO1
−
| GPIO3_A0<br/>
+
| GPIO3_A0
 
| 96
 
| 96
 
|-
 
|-
−
| GPIO2<br/>
+
| GPIO2
−
| GPIO3_A2<br/>
+
| GPIO3_A2
 
| 98
 
| 98
 
|-
 
|-
−
| GPIO3<br/>
+
| GPIO3
−
| GPIO3_A3<br/>
+
| GPIO3_A3
 
| 99
 
| 99
 
|-
 
|-
−
| GPIO4<br/>
+
| GPIO4
−
| GPIO3_A4<br/>
+
| GPIO3_A4
 
| 100
 
| 100
 
|-
 
|-
−
| GPIO5<br/>
+
| GPIO5
−
| GPIO3_A5<br/>
+
| GPIO3_A5
 
| 101
 
| 101
 
|-
 
|-
−
| GPIO6<br/>
+
| GPIO6
−
| GPIO3_A6<br/>
+
| GPIO3_A6
 
| 102
 
| 102
 
|}
 
|}
  
−
== ROM-5880==
+
== KEDGE-350 ==
  
−
{| cellspacing="1" cellpadding="1" border="1"
+
{| border="1" cellpadding="1" cellspacing="1"
 
|-
 
|-
 
| GPIO Number
 
| GPIO Number
Line 52: Line 53:
 
| Numeric Representation
 
| Numeric Representation
 
|-
 
|-
−
| GPIO1<br/>
+
| GPIO1
−
| GPIO3_A0<br/>
+
| GPIO0_B0
−
| 96
+
| 8
 
|-
 
|-
−
| GPIO2<br/>
+
| GPIO2
−
| GPIO3_A2<br/>
+
| GPIO3_A2
 
| 98
 
| 98
 
|-
 
|-
−
| GPIO3<br/>
+
| GPIO3
−
| GPIO3_A3<br/>
+
| GPIO3_A3
 
| 99
 
| 99
 
|-
 
|-
−
| GPIO4<br/>
+
| GPIO4
−
| GPIO3_A4<br/>
+
| GPIO3_A4
 
| 100
 
| 100
 
|-
 
|-
−
| GPIO5<br/>
+
| GPIO5
−
| GPIO3_A5<br/>
+
| GPIO3_A5
 
| 101
 
| 101
 
|-
 
|-
−
| GPIO6<br/>
+
| GPIO6
−
| GPIO3_A6<br/>
+
| GPIO3_A6
 
| 102
 
| 102
 +
|-
 +
| UIO_GPIO2
 +
| GPIO0_B3
 +
| 11
 +
|-
 +
| UIO_GPIO4
 +
| GPIO0_B4
 +
| 12
 +
|-
 +
| UIO_GPIO5
 +
| GPIO0_B5
 +
| 13
 +
|-
 +
| UIO_GPIO6
 +
| GPIO0_B6
 +
| 14
 +
|-
 +
| UIO_GPIO7
 +
| GPIO0_C5
 +
| 21
 +
|-
 +
| UIO_GPIO8
 +
| GPIO0_C6
 +
| 22
 +
|-
 +
| UIO_GPIO9
 +
| GPIO4_C3
 +
| 147
 +
|-
 +
| UIO_GPIO10
 +
| GPIO4_C2
 +
| 146
 +
|-
 +
| UIO_GPIO11
 +
| IIC_GPIO_P0
 +
| 503
 +
|-
 +
| UIO_GPIO12
 +
| IIC_GPIO_P1
 +
| 504
 +
|}
 +
 +
== ROM-5880 ==
 +
 +
{| border="1" cellpadding="1" cellspacing="1"
 +
|-
 +
| GPIO Number
 +
| GPIO formed
 +
| Numeric Representation
 +
|-
 +
| GPIO0
 +
| GPIO2_D0
 +
| 88
 +
|-
 +
| GPIO1
 +
| GPIO2_D1
 +
| 89
 +
|-
 +
| GPIO2
 +
| GPIO2_D2
 +
| 90
 +
|-
 +
| GPIO3
 +
| GPIO2_D3
 +
| 91
 +
|-
 +
| GPIO4
 +
| GPIO2_C6
 +
| 86
 +
|-
 +
| GPIO5
 +
| GPIO3_A1
 +
| 97
 +
|-
 +
| GPIO6
 +
| GPIO3_A7
 +
| 103
 +
|-
 +
| GPIO7
 +
| GPIO3_B0
 +
| 104
 +
|-
 +
| GPIO8
 +
| GPIO3_B1
 +
| 105
 +
|-
 +
| GPIO9
 +
| GPIO3_B2
 +
| 106
 +
|-
 +
| GPIO10
 +
| GPIO3_B3
 +
| 107
 +
|-
 +
| GPIO11
 +
| GPIO3_B4
 +
| 108
 
|}
 
|}
  
 +
== EBC-RB07 ==
  
 +
{| border="1" cellpadding="1" cellspacing="1"
 +
|-
 +
| GPIO Number
 +
| GPIO formed
 +
| Numeric Representation
 +
|-
 +
| GPIO1
 +
| GPIO3_A0
 +
| 96
 +
|-
 +
| GPIO2
 +
| GPIO3_A2
 +
| 98
 +
|-
 +
| GPIO3
 +
| GPIO3_A3
 +
| 99
 +
|-
 +
| GPIO4
 +
| GPIO3_A4
 +
| 100
 +
|-
 +
| GPIO5
 +
| GPIO3_A5
 +
| 101
 +
|-
 +
| GPIO6
 +
| GPIO3_A6
 +
| 102
 +
|}
  
 
= Test =
 
= Test =

Latest revision as of 08:05, 19 March 2024

Configuration

The RK3568 bank/bit notation for GPIOs must be formed as "GPIO<GPIO_bank>_<gpio_bit>" 

The numeric value of GPIO is calculated as follows: 

32 x (gpio_bank) + gpio_bit

gpio_bit : A0～A7 0-7 B0～B7 8-15 C0～C7 16-23 D0～D7 24-31

E.g. GPIO3_A0 becomes 96

RSB-4810

GPIO Number GPIO formed Numeric Representation
GPIO1 GPIO3_A0 96
GPIO2 GPIO3_A2 98
GPIO3 GPIO3_A3 99
GPIO4 GPIO3_A4 100
GPIO5 GPIO3_A5 101
GPIO6 GPIO3_A6 102

KEDGE-350

GPIO Number GPIO formed Numeric Representation
GPIO1 GPIO0_B0 8
GPIO2 GPIO3_A2 98
GPIO3 GPIO3_A3 99
GPIO4 GPIO3_A4 100
GPIO5 GPIO3_A5 101
GPIO6 GPIO3_A6 102
UIO_GPIO2 GPIO0_B3 11
UIO_GPIO4 GPIO0_B4 12
UIO_GPIO5 GPIO0_B5 13
UIO_GPIO6 GPIO0_B6 14
UIO_GPIO7 GPIO0_C5 21
UIO_GPIO8 GPIO0_C6 22
UIO_GPIO9 GPIO4_C3 147
UIO_GPIO10 GPIO4_C2 146
UIO_GPIO11 IIC_GPIO_P0 503
UIO_GPIO12 IIC_GPIO_P1 504

ROM-5880

GPIO Number GPIO formed Numeric Representation
GPIO0 GPIO2_D0 88
GPIO1 GPIO2_D1 89
GPIO2 GPIO2_D2 90
GPIO3 GPIO2_D3 91
GPIO4 GPIO2_C6 86
GPIO5 GPIO3_A1 97
GPIO6 GPIO3_A7 103
GPIO7 GPIO3_B0 104
GPIO8 GPIO3_B1 105
GPIO9 GPIO3_B2 106
GPIO10 GPIO3_B3 107
GPIO11 GPIO3_B4 108

EBC-RB07

GPIO Number GPIO formed Numeric Representation
GPIO1 GPIO3_A0 96
GPIO2 GPIO3_A2 98
GPIO3 GPIO3_A3 99
GPIO4 GPIO3_A4 100
GPIO5 GPIO3_A5 101
GPIO6 GPIO3_A6 102

Test

Here we take GPIO1 of 4810 as an example.

Export GPIO then you can use control GPIO from userr space through sysfs

Export GPIO1 

# echo 96 > /sys/class/gpio/export

Set GPIO direction to in/out 

# echo "out" > /sys/class/gpio/gpio96/direction

Set GPIO value 0/1 if GPIO pin define is output 

#  echo 1 > /sys/class/gpio/gpio96/value

Used as IRQ signal

Note:You have to configure GPIO to input 

#  echo "rising" > /sys/class/gpio/gpio96/edge
  • rising: Trigger on rising edge
  • falling: Trigger on falling edge
  • both: Trigger on both edges
  • none: Disable interrupt on both edges

Unexport GPIO1 

# echo 96 > /sys/class/gpio/unexport

Test

GPIO1 and GPIO2 are taken as an example:

  • Connect GPIO1 and GPIO2
  • Export GPIO1 and GPIO2
# echo 96 > /sys/class/gpio/export
# echo 98 > /sys/class/gpio/export
  • Set GPIO 1 to output
# echo "out" > /sys/class/gpio/gpio96/direction
  • Set GPIO 2 to input
# echo "in" > /sys/class/gpio/gpio98/direction
  • Change GPIO1 to 1 and read GPIO2value
# echo 1 > /sys/class/gpio/gpio96/value
# cat /sys/class/gpio/gpio98/value 
1
  • Change GPIO1 to 0 and read GPIO2 value
# echo 0 > /sys/class/gpio/gpio96/value
# cat /sys/class/gpio/gpio98/value 
0
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