diff options
Diffstat (limited to 'arch/blackfin/cpu/cmd_gpio.c')
| -rw-r--r-- | arch/blackfin/cpu/cmd_gpio.c | 118 | 
1 files changed, 0 insertions, 118 deletions
| diff --git a/arch/blackfin/cpu/cmd_gpio.c b/arch/blackfin/cpu/cmd_gpio.c deleted file mode 100644 index e96413b63..000000000 --- a/arch/blackfin/cpu/cmd_gpio.c +++ /dev/null @@ -1,118 +0,0 @@ -/* - * Control GPIO pins on the fly - * - * Copyright (c) 2008-2010 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include <common.h> -#include <command.h> -#include <linux/ctype.h> - -#include <asm/blackfin.h> -#include <asm/gpio.h> - -enum { -	GPIO_INPUT, -	GPIO_SET, -	GPIO_CLEAR, -	GPIO_TOGGLE, -}; - -int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) -{ -	if (argc == 2 && !strcmp(argv[1], "status")) { -		bfin_gpio_labels(); -		return 0; -	} - -	if (argc != 3) - show_usage: -		return cmd_usage(cmdtp); - -	/* parse the behavior */ -	ulong sub_cmd; -	switch (argv[1][0]) { -		case 'i': sub_cmd = GPIO_INPUT;  break; -		case 's': sub_cmd = GPIO_SET;    break; -		case 'c': sub_cmd = GPIO_CLEAR;  break; -		case 't': sub_cmd = GPIO_TOGGLE; break; -		default:  goto show_usage; -	} - -	/* parse the pin with format: [p][port]<#> */ -	const char *str_pin = argv[2]; - -	/* grab the [p]<port> portion */ -	ulong port_base; -	if (tolower(*str_pin) == 'p') ++str_pin; -	switch (tolower(*str_pin)) { -#ifdef GPIO_PA0 -		case 'a': port_base = GPIO_PA0; break; -#endif -#ifdef GPIO_PB0 -		case 'b': port_base = GPIO_PB0; break; -#endif -#ifdef GPIO_PC0 -		case 'c': port_base = GPIO_PC0; break; -#endif -#ifdef GPIO_PD0 -		case 'd': port_base = GPIO_PD0; break; -#endif -#ifdef GPIO_PE0 -		case 'e': port_base = GPIO_PE0; break; -#endif -#ifdef GPIO_PF0 -		case 'f': port_base = GPIO_PF0; break; -#endif -#ifdef GPIO_PG0 -		case 'g': port_base = GPIO_PG0; break; -#endif -#ifdef GPIO_PH0 -		case 'h': port_base = GPIO_PH0; break; -#endif -#ifdef GPIO_PI0 -		case 'i': port_base = GPIO_PI0; break; -#endif -#ifdef GPIO_PJ -		case 'j': port_base = GPIO_PJ0; break; -#endif -		default:  goto show_usage; -	} - -	/* grab the <#> portion */ -	ulong pin = simple_strtoul(str_pin + 1, NULL, 10); -	if (pin > 15) -		goto show_usage; - -	/* grab the pin before we tweak it */ -	ulong gpio = port_base + pin; -	gpio_request(gpio, "cmd_gpio"); - -	/* finally, let's do it: set direction and exec command */ -	ulong value; -	if (sub_cmd == GPIO_INPUT) { -		gpio_direction_input(gpio); -		value = gpio_get_value(gpio); -	} else { -		switch (sub_cmd) { -			case GPIO_SET:    value = 1; break; -			case GPIO_CLEAR:  value = 0; break; -			case GPIO_TOGGLE: value = !gpio_get_value(gpio); break; -			default:          goto show_usage; -		} -		gpio_direction_output(gpio, value); -	} -	printf("gpio: pin %lu on port %c (gpio %lu) value is %lu\n", -		pin, *str_pin, gpio, value); - -	gpio_free(gpio); - -	return value; -} - -U_BOOT_CMD(gpio, 3, 0, do_gpio, -	"input/set/clear/toggle gpio output pins", -	"<input|set|clear|toggle> <port><pin>\n" -	"    - input/set/clear/toggle the specified pin (e.g. PF10)"); |