--- /dev/null
+from adafruit_blinka.microcontroller.generic_linux.libgpiod_pin import Pin
+import gpiod
+
+# G12A, G12B, and SM1
+# Ref:
+# Linux kernel 4.9.y (hardkernel)
+# linux/include/dt-bindings/gpio/meson-g12a-gpio.h
+# Linux kernel 5.4.y (mainline)
+# linux/include/dt-bindings/gpio/meson-g12a-gpio.h
+
+chip0 = gpiod.Chip("0")
+chip1 = gpiod.Chip("1")
+
+if chip0.num_lines() < 20:
+ aobus = 0
+ periphs = 1
+ periphs_offset = chip1.num_lines() - 85
+else:
+ aobus = 1
+ periphs = 0
+ periphs_offset = chip0.num_lines() - 85
+
+chip0.close()
+chip1.close()
+
+GPIOAO_0 = GPIO496 = Pin((aobus, 0))
+GPIOAO_1 = GPIO497 = Pin((aobus, 1))
+GPIOAO_2 = GPIO498 = Pin((aobus, 2))
+GPIOAO_3 = GPIO499 = Pin((aobus, 3))
+GPIOAO_4 = GPIO500 = Pin((aobus, 4))
+GPIOAO_5 = GPIO501 = Pin((aobus, 5))
+GPIOAO_6 = GPIO502 = Pin((aobus, 6))
+GPIOAO_7 = GPIO503 = Pin((aobus, 7))
+GPIOAO_8 = GPIO504 = Pin((aobus, 8))
+GPIOAO_9 = GPIO505 = Pin((aobus, 9))
+GPIOAO_10 = GPIO506 = Pin((aobus, 10))
+GPIOAO_11 = GPIO507 = Pin((aobus, 11))
+GPIOE_0 = GPIO508 = Pin((aobus, 12))
+GPIOE_1 = GPIO509 = Pin((aobus, 13))
+GPIOE_2 = GPIO510 = Pin((aobus, 14))
+GPIO_TEST_N = GPIO511 = Pin((aobus, 15))
+
+GPIOH_0 = GPIO427 = Pin((periphs, 16 + periphs_offset))
+GPIOH_1 = GPIO428 = Pin((periphs, 17 + periphs_offset))
+GPIOH_2 = GPIO429 = Pin((periphs, 18 + periphs_offset))
+GPIOH_3 = GPIO430 = Pin((periphs, 19 + periphs_offset))
+GPIOH_4 = GPIO431 = Pin((periphs, 20 + periphs_offset))
+GPIOH_5 = GPIO432 = Pin((periphs, 21 + periphs_offset))
+GPIOH_6 = GPIO433 = Pin((periphs, 22 + periphs_offset))
+GPIOH_7 = GPIO434 = Pin((periphs, 23 + periphs_offset))
+GPIOH_8 = GPIO435 = Pin((periphs, 24 + periphs_offset))
+
+GPIOA_0 = GPIO460 = Pin((periphs, 49 + periphs_offset))
+GPIOA_1 = GPIO461 = Pin((periphs, 50 + periphs_offset))
+GPIOA_2 = GPIO462 = Pin((periphs, 51 + periphs_offset))
+GPIOA_3 = GPIO463 = Pin((periphs, 52 + periphs_offset))
+GPIOA_4 = GPIO464 = Pin((periphs, 53 + periphs_offset))
+GPIOA_5 = GPIO465 = Pin((periphs, 54 + periphs_offset))
+GPIOA_6 = GPIO466 = Pin((periphs, 55 + periphs_offset))
+GPIOA_7 = GPIO467 = Pin((periphs, 56 + periphs_offset))
+GPIOA_8 = GPIO468 = Pin((periphs, 57 + periphs_offset))
+GPIOA_9 = GPIO469 = Pin((periphs, 58 + periphs_offset))
+GPIOA_10 = GPIO470 = Pin((periphs, 59 + periphs_offset))
+GPIOA_11 = GPIO471 = Pin((periphs, 60 + periphs_offset))
+GPIOA_12 = GPIO472 = Pin((periphs, 61 + periphs_offset))
+GPIOA_13 = GPIO473 = Pin((periphs, 62 + periphs_offset))
+GPIOA_14 = GPIO474 = Pin((periphs, 63 + periphs_offset))
+GPIOA_15 = GPIO475 = Pin((periphs, 64 + periphs_offset))
+
+GPIOX_0 = GPIO476 = Pin((periphs, 65 + periphs_offset))
+GPIOX_1 = GPIO477 = Pin((periphs, 66 + periphs_offset))
+GPIOX_2 = GPIO478 = Pin((periphs, 67 + periphs_offset))
+GPIOX_3 = GPIO479 = Pin((periphs, 68 + periphs_offset))
+GPIOX_4 = GPIO480 = Pin((periphs, 69 + periphs_offset))
+GPIOX_5 = GPIO481 = Pin((periphs, 70 + periphs_offset))
+GPIOX_6 = GPIO482 = Pin((periphs, 71 + periphs_offset))
+GPIOX_7 = GPIO483 = Pin((periphs, 72 + periphs_offset))
+GPIOX_8 = GPIO484 = Pin((periphs, 73 + periphs_offset))
+GPIOX_9 = GPIO485 = Pin((periphs, 74 + periphs_offset))
+GPIOX_10 = GPIO486 = Pin((periphs, 75 + periphs_offset))
+GPIOX_11 = GPIO487 = Pin((periphs, 76 + periphs_offset))
+GPIOX_12 = GPIO488 = Pin((periphs, 77 + periphs_offset))
+GPIOX_13 = GPIO489 = Pin((periphs, 78 + periphs_offset))
+GPIOX_14 = GPIO490 = Pin((periphs, 79 + periphs_offset))
+GPIOX_15 = GPIO491 = Pin((periphs, 80 + periphs_offset))
+GPIOX_16 = GPIO492 = Pin((periphs, 81 + periphs_offset))
+GPIOX_17 = GPIO493 = Pin((periphs, 82 + periphs_offset))
+GPIOX_18 = GPIO494 = Pin((periphs, 83 + periphs_offset))
+GPIOX_19 = GPIO495 = Pin((periphs, 84 + periphs_offset))