diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/blackfin/cpu/Makefile | 1 | ||||
| -rw-r--r-- | arch/blackfin/cpu/cmd_gpio.c | 118 | ||||
| -rw-r--r-- | arch/blackfin/include/asm/gpio.h | 53 |
3 files changed, 53 insertions, 119 deletions
diff --git a/arch/blackfin/cpu/Makefile b/arch/blackfin/cpu/Makefile index 4a9e577..df10f1b 100644 --- a/arch/blackfin/cpu/Makefile +++ b/arch/blackfin/cpu/Makefile @@ -18,7 +18,6 @@ CEXTRA := initcode.o SEXTRA := start.o SOBJS := interrupt.o cache.o COBJS-$(CONFIG_BOOTCOUNT_LIMIT) += bootcount.o -COBJS-$(CONFIG_CMD_GPIO) += cmd_gpio.o COBJS-y += cpu.o COBJS-y += gpio.o COBJS-y += interrupts.o diff --git a/arch/blackfin/cpu/cmd_gpio.c b/arch/blackfin/cpu/cmd_gpio.c deleted file mode 100644 index e96413b..0000000 --- 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)"); diff --git a/arch/blackfin/include/asm/gpio.h b/arch/blackfin/include/asm/gpio.h index b650ef0..9c0e5d1 100644 --- a/arch/blackfin/include/asm/gpio.h +++ b/arch/blackfin/include/asm/gpio.h @@ -196,6 +196,59 @@ static inline int gpio_is_valid(int number) return number >= 0 && number < MAX_BLACKFIN_GPIOS; } +#include <linux/ctype.h> + +static inline int name_to_gpio(const char *name) +{ + int port_base; + + if (tolower(*name) == 'p') { + ++name; + + switch (tolower(*name)) { +#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: return -1; + } + + ++name; + } else + port_base = 0; + + return port_base + simple_strtoul(name, NULL, 10); +} +#define name_to_gpio(n) name_to_gpio(n) + +#define gpio_status() bfin_gpio_labels() + #endif /* __ASSEMBLY__ */ #endif /* __ARCH_BLACKFIN_GPIO_H__ */ |