diff options
| author | Joachim Foerster <joachim.foerster@missinglinkelectronics.com> | 2011-10-21 15:48:51 +0200 |
|---|---|---|
| committer | Thomas Chou <thomas@wytron.com.tw> | 2011-10-28 09:51:19 +0800 |
| commit | df969b5ffd62449f3625dacb036bef107d5306d4 (patch) | |
| tree | 2fb05ca0b04c46547ae919bb13e75a897992acd7 /board/altera/nios2-generic/gpio.c | |
| parent | 03d67e127685f65513e7b78dacbd4ccaf01053f6 (diff) | |
| download | u-boot-imx-df969b5ffd62449f3625dacb036bef107d5306d4.zip u-boot-imx-df969b5ffd62449f3625dacb036bef107d5306d4.tar.gz u-boot-imx-df969b5ffd62449f3625dacb036bef107d5306d4.tar.bz2 | |
board/nios2-generic: Use altera_pio driver and remove board specific driver
Signed-off-by: Joachim Foerster <joachim.foerster@missinglinkelectronics.com>
Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
Diffstat (limited to 'board/altera/nios2-generic/gpio.c')
| -rw-r--r-- | board/altera/nios2-generic/gpio.c | 71 |
1 files changed, 0 insertions, 71 deletions
diff --git a/board/altera/nios2-generic/gpio.c b/board/altera/nios2-generic/gpio.c deleted file mode 100644 index 4a30564..0000000 --- a/board/altera/nios2-generic/gpio.c +++ /dev/null @@ -1,71 +0,0 @@ -/* - * board gpio driver - * - * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw> - * Licensed under the GPL-2 or later. - */ -#include <common.h> -#include <asm/io.h> - -#ifndef CONFIG_SYS_GPIO_BASE - -#define ALTERA_PIO_BASE LED_PIO_BASE -#define ALTERA_PIO_WIDTH LED_PIO_WIDTH -#define ALTERA_PIO_DATA (ALTERA_PIO_BASE + 0) -#define ALTERA_PIO_DIR (ALTERA_PIO_BASE + 4) -static u32 pio_data_reg; -static u32 pio_dir_reg; - -int gpio_request(unsigned gpio, const char *label) -{ - return 0; -} - -int gpio_free(unsigned gpio) -{ - return 0; -} - -int gpio_direction_input(unsigned gpio) -{ - u32 mask = 1 << gpio; - writel(pio_dir_reg &= ~mask, ALTERA_PIO_DIR); - return 0; -} - -int gpio_direction_output(unsigned gpio, int value) -{ - u32 mask = 1 << gpio; - if (value) - pio_data_reg |= mask; - else - pio_data_reg &= ~mask; - writel(pio_data_reg, ALTERA_PIO_DATA); - writel(pio_dir_reg |= mask, ALTERA_PIO_DIR); - return 0; -} - -int gpio_get_value(unsigned gpio) -{ - u32 mask = 1 << gpio; - if (pio_dir_reg & mask) - return (pio_data_reg & mask) ? 1 : 0; - else - return (readl(ALTERA_PIO_DATA) & mask) ? 1 : 0; -} - -void gpio_set_value(unsigned gpio, int value) -{ - u32 mask = 1 << gpio; - if (value) - pio_data_reg |= mask; - else - pio_data_reg &= ~mask; - writel(pio_data_reg, ALTERA_PIO_DATA); -} - -int gpio_is_valid(int number) -{ - return ((unsigned)number) < ALTERA_PIO_WIDTH; -} -#endif |