* Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com>
* on behalf of DENX Software Engineering GmbH
*
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * 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 <netdev.h>
#include <asm/errno.h>
#include <asm/io.h>
+#include <asm/gpio.h>
#include <asm/arch/iomux.h>
#include <asm/arch/imx-regs.h>
-#if defined(CONFIG_MX23)
+#if defined(CONFIG_SOC_MX23)
#define PINCTRL_BANKS 3
#define PINCTRL_DOUT(n) (0x0500 + ((n) * 0x10))
#define PINCTRL_DIN(n) (0x0600 + ((n) * 0x10))
#define PINCTRL_PIN2IRQ(n) (0x0800 + ((n) * 0x10))
#define PINCTRL_IRQEN(n) (0x0900 + ((n) * 0x10))
#define PINCTRL_IRQSTAT(n) (0x0c00 + ((n) * 0x10))
-#elif defined(CONFIG_MX28)
+#elif defined(CONFIG_SOC_MX28)
#define PINCTRL_BANKS 5
#define PINCTRL_DOUT(n) (0x0700 + ((n) * 0x10))
#define PINCTRL_DIN(n) (0x0900 + ((n) * 0x10))
#define PINCTRL_IRQEN(n) (0x1100 + ((n) * 0x10))
#define PINCTRL_IRQSTAT(n) (0x1400 + ((n) * 0x10))
#else
-#error "Please select CONFIG_MX23 or CONFIG_MX28"
+#error "Please select CONFIG_SOC_MX23 or CONFIG_SOC_MX28"
#endif
-#define GPIO_INT_FALL_EDGE 0x0
-#define GPIO_INT_LOW_LEV 0x1
-#define GPIO_INT_RISE_EDGE 0x2
-#define GPIO_INT_HIGH_LEV 0x3
-#define GPIO_INT_LEV_MASK (1 << 0)
-#define GPIO_INT_POL_MASK (1 << 1)
-
void mxs_gpio_init(void)
{
int i;
}
}
-int gpio_get_value(int gp)
+int gpio_get_value(unsigned gpio)
{
- uint32_t bank = PAD_BANK(gp);
+ uint32_t bank = PAD_BANK(gpio);
uint32_t offset = PINCTRL_DIN(bank);
- struct mx28_register *reg =
- (struct mx28_register *)(MXS_PINCTRL_BASE + offset);
+ struct mxs_register_32 *reg = (void *)(MXS_PINCTRL_BASE + offset);
- return (readl(®->reg) >> PAD_PIN(gp)) & 1;
+ return (readl(®->reg) >> PAD_PIN(gpio)) & 1;
}
-void gpio_set_value(int gp, int value)
+int gpio_set_value(unsigned gpio, int value)
{
- uint32_t bank = PAD_BANK(gp);
+ uint32_t bank = PAD_BANK(gpio);
uint32_t offset = PINCTRL_DOUT(bank);
- struct mx28_register *reg =
- (struct mx28_register *)(MXS_PINCTRL_BASE + offset);
+ struct mxs_register_32 *reg = (void *)(MXS_PINCTRL_BASE + offset);
if (value)
- writel(1 << PAD_PIN(gp), ®->reg_set);
+ writel(1 << PAD_PIN(gpio), ®->reg_set);
else
- writel(1 << PAD_PIN(gp), ®->reg_clr);
+ writel(1 << PAD_PIN(gpio), ®->reg_clr);
+
+ return 0;
}
-int gpio_direction_input(int gp)
+int gpio_direction_input(unsigned gpio)
{
- uint32_t bank = PAD_BANK(gp);
+ uint32_t bank = PAD_BANK(gpio);
uint32_t offset = PINCTRL_DOE(bank);
- struct mx28_register *reg =
- (struct mx28_register *)(MXS_PINCTRL_BASE + offset);
+ struct mxs_register_32 *reg = (void *)(MXS_PINCTRL_BASE + offset);
- writel(1 << PAD_PIN(gp), ®->reg_clr);
+ writel(1 << PAD_PIN(gpio), ®->reg_clr);
return 0;
}
-int gpio_direction_output(int gp, int value)
+int gpio_direction_output(unsigned gpio, int value)
{
- uint32_t bank = PAD_BANK(gp);
+ uint32_t bank = PAD_BANK(gpio);
uint32_t offset = PINCTRL_DOE(bank);
- struct mx28_register *reg =
- (struct mx28_register *)(MXS_PINCTRL_BASE + offset);
+ struct mxs_register_32 *reg = (void *)(MXS_PINCTRL_BASE + offset);
- writel(1 << PAD_PIN(gp), ®->reg_set);
+ gpio_set_value(gpio, value);
- gpio_set_value(gp, value);
+ writel(1 << PAD_PIN(gpio), ®->reg_set);
return 0;
}
-int gpio_request(int gp, const char *label)
+int gpio_request(unsigned gpio, const char *label)
{
- if (PAD_BANK(gp) >= PINCTRL_BANKS)
- return -EINVAL;
+ if (PAD_BANK(gpio) >= PINCTRL_BANKS)
+ return -1;
return 0;
}
-void gpio_free(int gp)
+int gpio_free(unsigned gpio)
{
-}
-
-void gpio_toggle_value(int gp)
-{
- gpio_set_value(gp, !gpio_get_value(gp));
+ return 0;
}