diff options
Diffstat (limited to 'cpu/arm_cortexa8/s5pc1xx/gpio.c')
-rw-r--r-- | cpu/arm_cortexa8/s5pc1xx/gpio.c | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/cpu/arm_cortexa8/s5pc1xx/gpio.c b/cpu/arm_cortexa8/s5pc1xx/gpio.c deleted file mode 100644 index a97244b..0000000 --- a/cpu/arm_cortexa8/s5pc1xx/gpio.c +++ /dev/null @@ -1,143 +0,0 @@ -/* - * (C) Copyright 2009 Samsung Electronics - * Minkyu Kang <mk7.kang@samsung.com> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ - -#include <common.h> -#include <asm/io.h> -#include <asm/arch/gpio.h> - -#define CON_MASK(x) (0xf << ((x) << 2)) -#define CON_SFR(x, v) ((v) << ((x) << 2)) - -#define DAT_MASK(x) (0x1 << (x)) -#define DAT_SET(x) (0x1 << (x)) - -#define PULL_MASK(x) (0x3 << ((x) << 1)) -#define PULL_MODE(x, v) ((v) << ((x) << 1)) - -#define DRV_MASK(x) (0x3 << ((x) << 1)) -#define DRV_SET(x, m) ((m) << ((x) << 1)) -#define RATE_MASK(x) (0x1 << (x + 16)) -#define RATE_SET(x) (0x1 << (x + 16)) - -void gpio_cfg_pin(struct s5pc1xx_gpio_bank *bank, int gpio, int cfg) -{ - unsigned int value; - - value = readl(&bank->con); - value &= ~CON_MASK(gpio); - value |= CON_SFR(gpio, cfg); - writel(value, &bank->con); -} - -void gpio_direction_output(struct s5pc1xx_gpio_bank *bank, int gpio, int en) -{ - unsigned int value; - - gpio_cfg_pin(bank, gpio, GPIO_OUTPUT); - - value = readl(&bank->dat); - value &= ~DAT_MASK(gpio); - if (en) - value |= DAT_SET(gpio); - writel(value, &bank->dat); -} - -void gpio_direction_input(struct s5pc1xx_gpio_bank *bank, int gpio) -{ - gpio_cfg_pin(bank, gpio, GPIO_INPUT); -} - -void gpio_set_value(struct s5pc1xx_gpio_bank *bank, int gpio, int en) -{ - unsigned int value; - - value = readl(&bank->dat); - value &= ~DAT_MASK(gpio); - if (en) - value |= DAT_SET(gpio); - writel(value, &bank->dat); -} - -unsigned int gpio_get_value(struct s5pc1xx_gpio_bank *bank, int gpio) -{ - unsigned int value; - - value = readl(&bank->dat); - return !!(value & DAT_MASK(gpio)); -} - -void gpio_set_pull(struct s5pc1xx_gpio_bank *bank, int gpio, int mode) -{ - unsigned int value; - - value = readl(&bank->pull); - value &= ~PULL_MASK(gpio); - - switch (mode) { - case GPIO_PULL_DOWN: - case GPIO_PULL_UP: - value |= PULL_MODE(gpio, mode); - break; - default: - return; - } - - writel(value, &bank->pull); -} - -void gpio_set_drv(struct s5pc1xx_gpio_bank *bank, int gpio, int mode) -{ - unsigned int value; - - value = readl(&bank->drv); - value &= ~DRV_MASK(gpio); - - switch (mode) { - case GPIO_DRV_1X: - case GPIO_DRV_2X: - case GPIO_DRV_3X: - case GPIO_DRV_4X: - value |= DRV_SET(gpio, mode); - break; - default: - return; - } - - writel(value, &bank->drv); -} - -void gpio_set_rate(struct s5pc1xx_gpio_bank *bank, int gpio, int mode) -{ - unsigned int value; - - value = readl(&bank->drv); - value &= ~RATE_MASK(gpio); - - switch (mode) { - case GPIO_DRV_FAST: - case GPIO_DRV_SLOW: - value |= RATE_SET(gpio); - break; - default: - return; - } - - writel(value, &bank->drv); -} |