Ok - this works in ‘board_init’;
/* this reports to the PWM1 - back light */
/*
22 is the numeric representation
59 is the actual pin number on the SOM
*/
gpio_request(22, "SODIMM_PIN_59");
gpio_direction_output(22, 1);
gpio_set_value(22, 0);
But this doesn’t;
/* set the RS485 direction bit */
/*
81 is the numeric representation
34 is the actual pin number on the SOM
*/
gpio_request(81, "SODIMM_PIN_34");
gpio_direction_output(81, 1);
gpio_set_value(81, 0);
Changed this to enum in iomux-vf610.h:
VF610_PAD_PTD2__GPIO_81 = IOMUX_PAD(0x0144, 0x0144, 2, __NA_, 0, VF610_GPIO_PAD_CTRL),
Took it out of uart_pads structure, added it to gpio_pads in the colibri_vf.c
Example:
static const iomux_v3_cfg_t gpio_pads[] = {
VF610_PAD_PTA17__GPIO_7,
VF610_PAD_PTA20__GPIO_10,
VF610_PAD_PTA21__GPIO_11,
VF610_PAD_PTA30__GPIO_20,
VF610_PAD_PTA31__GPIO_21,
VF610_PAD_PTB0__GPIO_22,
VF610_PAD_PTB1__GPIO_23,
VF610_PAD_PTB8__GPIO_30,
VF610_PAD_PTB9__GPIO_31,
VF610_PAD_PTC0__GPIO_45,
VF610_PAD_PTD2__GPIO_81,
};
Still not working. Did ‘cat /sys/class/gpio’ -
export
gpio103
gpio39
gpio43
gpio48
gpio5
gpio63
gpio65
gpio66
gpio67
gpio69
gpio70
gpio91
gpio96
gpio98
gpiochip0
gpiochip128
gpiochip32
gpiochip64
gpiochip96
unexport
And same in u-boot:
GPIOs 0-31, platform/40049000.gpio, vf610-gpio:
gpio-5 (sysfs ) out lo
GPIOs 32-63, platform/4004a000.gpio, vf610-gpio:
gpio-39 (sysfs ) out lo
gpio-41 (Wake-Up ) in lo IRQ
gpio-42 (cd ) in hi IRQ
gpio-43 (ft5x06_ts ) out hi
gpio-45 (backlight ) out hi
gpio-48 (sysfs ) out lo
gpio-63 (sysfs ) out hi
GPIOs 64-95, platform/4004b000.gpio, vf610-gpio:
gpio-65 (sysfs ) out hi
gpio-66 (sysfs ) out lo
gpio-67 (sysfs ) out lo
gpio-69 (sysfs ) out hi
gpio-70 (sysfs ) out hi
gpio-89 (id ) in lo IRQ
gpio-91 (ft5x06_ts ) in hi IRQ
GPIOs 96-127, platform/4004c000.gpio, vf610-gpio:
gpio-96 (sysfs ) out lo
gpio-98 (sysfs ) out hi
gpio-103 (sysfs ) out hi
GPIOs 128-159, platform/4004d000.gpio, vf610-gpio:
Where did I go wrong?
Thanks!!