| /* This file is part of the coreboot 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. |
| */ |
| |
| #ifndef __CPU_TI_AM335X_GPIO_H__ |
| #define __CPU_TI_AM335X_GPIO_H__ |
| |
| #include <stdint.h> |
| |
| enum { |
| AM335X_GPIO_BITS_PER_BANK = 32 |
| }; |
| |
| struct am335x_gpio_regs { |
| uint32_t revision; // 0x0 |
| uint8_t _rsv0[0xc]; // 0x4-0xf |
| uint32_t sysconfig; // 0x10 |
| uint8_t _rsv1[0xc]; // 0x14-0x1f |
| uint32_t eoi; // 0x20 |
| uint32_t irqstatus_raw_0; // 0x24 |
| uint32_t irqstatus_raw_1; // 0x28 |
| uint32_t irqstatus_0; // 0x2c |
| uint32_t irqstatus_1; // 0x30 |
| uint32_t irqstatus_set_0; // 0x34 |
| uint32_t irqstatus_set_1; // 0x38 |
| uint32_t irqstatus_clr_0; // 0x3c |
| uint32_t irqstatus_clk_1; // 0x40 |
| uint32_t irqwaken_0; // 0x44 |
| uint32_t irqwaken_1; // 0x48 |
| uint8_t _rsv2[0xc8]; // 0x4c-0x113 |
| uint32_t sysstatus; // 0x114 |
| uint8_t _rsv3[0x18]; // 0x118-0x12f |
| uint32_t ctrl; // 0x130 |
| uint32_t oe; // 0x134 |
| uint32_t datain; // 0x138 |
| uint32_t dataout; // 0x13c |
| uint32_t leveldetect0; // 0x140 |
| uint32_t leveldetect1; // 0x144 |
| uint32_t risingdetect; // 0x148 |
| uint32_t fallingdetect; // 0x14c |
| uint32_t debouncenable; // 0x150 |
| uint32_t debouncingtime; // 0x154 |
| uint8_t _rsv4[0x38]; // 0x158-0x18f |
| uint32_t cleardataout; // 0x190 |
| uint32_t setdataout; // 0x194 |
| } __packed; |
| |
| static struct am335x_gpio_regs * const am335x_gpio_banks[] = { |
| (void *)0x44e07000, (void *)0x4804c000, |
| (void *)0x481ac000, (void *)0x481ae000 |
| }; |
| |
| void am335x_disable_gpio_irqs(void); |
| |
| int gpio_direction_input(unsigned int gpio); |
| int gpio_direction_output(unsigned int gpio, int value); |
| int gpio_get_value(unsigned int gpio); |
| int gpio_set_value(unsigned int gpio, int value); |
| |
| #endif /* __CPU_TI_AM335X_CLOCK_H__ */ |