diff options
Diffstat (limited to 'board/cm-bf527/gpio.c')
-rw-r--r-- | board/cm-bf527/gpio.c | 74 |
1 files changed, 0 insertions, 74 deletions
diff --git a/board/cm-bf527/gpio.c b/board/cm-bf527/gpio.c deleted file mode 100644 index 7e0babe..0000000 --- a/board/cm-bf527/gpio.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * Control GPIO pins on the fly - * - * Copyright (c) 2008 Analog Devices Inc. - * - * Licensed under the GPL-2 or later. - */ - -#include <common.h> -#include <command.h> - -#include <asm/blackfin.h> - -int do_gpio(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) -{ - if (argc != 3) { - show_usage: - printf("Usage:\n%s\n", cmdtp->usage); - return 1; - } - - /* parse the behavior */ - ulong port_cmd = 0; - switch (argv[1][0]) { - case 'i': break; - case 's': port_cmd = (PORTFIO_SET - PORTFIO); break; - case 'c': port_cmd = (PORTFIO_CLEAR - PORTFIO); break; - case 't': port_cmd = (PORTFIO_TOGGLE - PORTFIO); break; - default: goto show_usage; - } - - /* parse the pin with format: [p]<fgh><#> */ - const char *str_pin = argv[2]; - - /* grab the [p]<fgh> portion */ - ulong port_base; - if (*str_pin == 'p') ++str_pin; - switch (*str_pin) { - case 'f': port_base = PORTFIO; break; - case 'g': port_base = PORTGIO; break; - case 'h': port_base = PORTHIO; break; - default: goto show_usage; - } - - /* grab the <#> portion */ - ulong pin = simple_strtoul(str_pin+1, NULL, 10); - ulong pin_mask = (1 << pin); - if (pin > 15) - goto show_usage; - - /* finally, let's do it: set direction and exec command */ - switch (*str_pin) { - case 'f': bfin_write_PORTF_FER(bfin_read_PORTF_FER() & ~pin_mask); break; - case 'g': bfin_write_PORTG_FER(bfin_read_PORTG_FER() & ~pin_mask); break; - case 'h': bfin_write_PORTH_FER(bfin_read_PORTH_FER() & ~pin_mask); break; - } - - ulong port_dir = port_base + (PORTFIO_DIR - PORTFIO); - if (argv[1][0] == 'i') - bfin_write16(port_dir, bfin_read16(port_dir) & ~pin_mask); - else { - bfin_write16(port_dir, bfin_read16(port_dir) | pin_mask); - bfin_write16(port_base + port_cmd, pin_mask); - } - - printf("gpio: pin %li on port %c has been %c\n", pin, *str_pin, argv[1][0]); - - return 0; -} - -U_BOOT_CMD(gpio, 3, 0, do_gpio, - "gpio - set/clear/toggle gpio output pins\n", - "<s|c|t> <port><pin>\n" - " - set/clear/toggle the specified pin\n"); |