* (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
+ * SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <asm/io.h>
-#include <asm/arch/gpio.h>
+#include <asm/gpio.h>
+
+#define S5P_GPIO_GET_BANK(x) ((x >> S5P_GPIO_BANK_SHIFT) \
+ & S5P_GPIO_BANK_MASK)
+
+#define S5P_GPIO_GET_PIN(x) (x & S5P_GPIO_PIN_MASK)
#define CON_MASK(x) (0xf << ((x) << 2))
#define CON_SFR(x, v) ((v) << ((x) << 2))
#define RATE_MASK(x) (0x1 << (x + 16))
#define RATE_SET(x) (0x1 << (x + 16))
-void gpio_cfg_pin(struct s5p_gpio_bank *bank, int gpio, int cfg)
+void s5p_gpio_cfg_pin(struct s5p_gpio_bank *bank, int gpio, int cfg)
{
unsigned int value;
writel(value, &bank->con);
}
-void gpio_direction_output(struct s5p_gpio_bank *bank, int gpio, int en)
+void s5p_gpio_direction_output(struct s5p_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);
+ s5p_gpio_cfg_pin(bank, gpio, GPIO_OUTPUT);
+ s5p_gpio_set_value(bank, gpio, en);
}
-void gpio_direction_input(struct s5p_gpio_bank *bank, int gpio)
+void s5p_gpio_direction_input(struct s5p_gpio_bank *bank, int gpio)
{
- gpio_cfg_pin(bank, gpio, GPIO_INPUT);
+ s5p_gpio_cfg_pin(bank, gpio, GPIO_INPUT);
}
-void gpio_set_value(struct s5p_gpio_bank *bank, int gpio, int en)
+void s5p_gpio_set_value(struct s5p_gpio_bank *bank, int gpio, int en)
{
unsigned int value;
writel(value, &bank->dat);
}
-unsigned int gpio_get_value(struct s5p_gpio_bank *bank, int gpio)
+unsigned int s5p_gpio_get_value(struct s5p_gpio_bank *bank, int gpio)
{
unsigned int value;
return !!(value & DAT_MASK(gpio));
}
-void gpio_set_pull(struct s5p_gpio_bank *bank, int gpio, int mode)
+void s5p_gpio_set_pull(struct s5p_gpio_bank *bank, int gpio, int mode)
{
unsigned int value;
writel(value, &bank->pull);
}
-void gpio_set_drv(struct s5p_gpio_bank *bank, int gpio, int mode)
+void s5p_gpio_set_drv(struct s5p_gpio_bank *bank, int gpio, int mode)
{
unsigned int value;
writel(value, &bank->drv);
}
-void gpio_set_rate(struct s5p_gpio_bank *bank, int gpio, int mode)
+void s5p_gpio_set_rate(struct s5p_gpio_bank *bank, int gpio, int mode)
{
unsigned int value;
writel(value, &bank->drv);
}
+
+struct s5p_gpio_bank *s5p_gpio_get_bank(unsigned gpio)
+{
+ unsigned bank = S5P_GPIO_GET_BANK(gpio);
+ unsigned base = s5p_gpio_base(gpio);
+
+ return (struct s5p_gpio_bank *)(base + bank);
+}
+
+int s5p_gpio_get_pin(unsigned gpio)
+{
+ return S5P_GPIO_GET_PIN(gpio);
+}
+
+/* Common GPIO API */
+
+int gpio_request(unsigned gpio, const char *label)
+{
+ return 0;
+}
+
+int gpio_free(unsigned gpio)
+{
+ return 0;
+}
+
+int gpio_direction_input(unsigned gpio)
+{
+ s5p_gpio_direction_input(s5p_gpio_get_bank(gpio),
+ s5p_gpio_get_pin(gpio));
+ return 0;
+}
+
+int gpio_direction_output(unsigned gpio, int value)
+{
+ s5p_gpio_direction_output(s5p_gpio_get_bank(gpio),
+ s5p_gpio_get_pin(gpio), value);
+ return 0;
+}
+
+int gpio_get_value(unsigned gpio)
+{
+ return (int) s5p_gpio_get_value(s5p_gpio_get_bank(gpio),
+ s5p_gpio_get_pin(gpio));
+}
+
+int gpio_set_value(unsigned gpio, int value)
+{
+ s5p_gpio_set_value(s5p_gpio_get_bank(gpio),
+ s5p_gpio_get_pin(gpio), value);
+
+ return 0;
+}