diff options
Diffstat (limited to 'src/cpu/samsung/exynos5420/gpio.h')
| -rw-r--r-- | src/cpu/samsung/exynos5420/gpio.h | 550 |
1 files changed, 0 insertions, 550 deletions
diff --git a/src/cpu/samsung/exynos5420/gpio.h b/src/cpu/samsung/exynos5420/gpio.h deleted file mode 100644 index 4cf8e57249..0000000000 --- a/src/cpu/samsung/exynos5420/gpio.h +++ /dev/null @@ -1,550 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2010 Samsung Electronics - * - * 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; version 2 of the License. - * - * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#ifndef CPU_SAMSUNG_EXYNOS5420_GPIO_H -#define CPU_SAMSUNG_EXYNOS5420_GPIO_H - -#include "cpu.h" - -struct gpio_bank { - unsigned int con; - unsigned int dat; - unsigned int pull; - unsigned int drv; - unsigned int pdn_con; - unsigned int pdn_pull; - unsigned char res1[8]; -}; - -/* GPIO pins per bank */ -#define GPIO_PER_BANK 8 - -/* Pin configurations */ -#define GPIO_INPUT 0x0 -#define GPIO_OUTPUT 0x1 -#define GPIO_IRQ 0xf -#define GPIO_FUNC(x) (x) - -/* Pull mode */ -#define GPIO_PULL_NONE 0x0 -#define GPIO_PULL_DOWN 0x1 -#define GPIO_PULL_UP 0x3 - -/* Drive Strength level */ -#define GPIO_DRV_1X 0x0 -#define GPIO_DRV_3X 0x1 -#define GPIO_DRV_2X 0x2 -#define GPIO_DRV_4X 0x3 -#define GPIO_DRV_FAST 0x0 -#define GPIO_DRV_SLOW 0x1 - -enum exynos5_gpio_port { - EXYNOS5_GPY7 = EXYNOS5420_GPIO_PART1_BASE + 0x0000, - - EXYNOS5_GPX0 = EXYNOS5420_GPIO_PART2_BASE + 0x0000, - EXYNOS5_GPX1 = EXYNOS5420_GPIO_PART2_BASE + 0x0020, - EXYNOS5_GPX2 = EXYNOS5420_GPIO_PART2_BASE + 0x0040, - EXYNOS5_GPX3 = EXYNOS5420_GPIO_PART2_BASE + 0x0060, - - EXYNOS5_GPC0 = EXYNOS5420_GPIO_PART3_BASE + 0x0000, - EXYNOS5_GPC1 = EXYNOS5420_GPIO_PART3_BASE + 0x0020, - EXYNOS5_GPC2 = EXYNOS5420_GPIO_PART3_BASE + 0x0040, - EXYNOS5_GPC3 = EXYNOS5420_GPIO_PART3_BASE + 0x0060, - EXYNOS5_GPC4 = EXYNOS5420_GPIO_PART3_BASE + 0x0080, - - EXYNOS5_GPD1 = EXYNOS5420_GPIO_PART3_BASE + 0x00a0, - - EXYNOS5_GPY0 = EXYNOS5420_GPIO_PART3_BASE + 0x00c0, - EXYNOS5_GPY1 = EXYNOS5420_GPIO_PART3_BASE + 0x00e0, - EXYNOS5_GPY2 = EXYNOS5420_GPIO_PART3_BASE + 0x0100, - EXYNOS5_GPY3 = EXYNOS5420_GPIO_PART3_BASE + 0x0120, - EXYNOS5_GPY4 = EXYNOS5420_GPIO_PART3_BASE + 0x0140, - EXYNOS5_GPY5 = EXYNOS5420_GPIO_PART3_BASE + 0x0160, - EXYNOS5_GPY6 = EXYNOS5420_GPIO_PART3_BASE + 0x0180, - - EXYNOS5_GPE0 = EXYNOS5420_GPIO_PART4_BASE + 0x0000, - EXYNOS5_GPE1 = EXYNOS5420_GPIO_PART4_BASE + 0x0020, - - EXYNOS5_GPF0 = EXYNOS5420_GPIO_PART4_BASE + 0x0040, - EXYNOS5_GPF1 = EXYNOS5420_GPIO_PART4_BASE + 0x0060, - - EXYNOS5_GPG0 = EXYNOS5420_GPIO_PART4_BASE + 0x0080, - EXYNOS5_GPG1 = EXYNOS5420_GPIO_PART4_BASE + 0x00a0, - EXYNOS5_GPG2 = EXYNOS5420_GPIO_PART4_BASE + 0x00c0, - - EXYNOS5_GPJ4 = EXYNOS5420_GPIO_PART4_BASE + 0x00e0, - - /* base == EXYNOS5420_GPIO_PART5_BASE */ - EXYNOS5_GPA0 = EXYNOS5420_GPIO_PART5_BASE + 0x0000, - EXYNOS5_GPA1 = EXYNOS5420_GPIO_PART5_BASE + 0x0020, - EXYNOS5_GPA2 = EXYNOS5420_GPIO_PART5_BASE + 0x0040, - - EXYNOS5_GPB0 = EXYNOS5420_GPIO_PART5_BASE + 0x0060, - EXYNOS5_GPB1 = EXYNOS5420_GPIO_PART5_BASE + 0x0080, - EXYNOS5_GPB2 = EXYNOS5420_GPIO_PART5_BASE + 0x00a0, - EXYNOS5_GPB3 = EXYNOS5420_GPIO_PART5_BASE + 0x00c0, - EXYNOS5_GPB4 = EXYNOS5420_GPIO_PART5_BASE + 0x00e0, - - EXYNOS5_GPH0 = EXYNOS5420_GPIO_PART5_BASE + 0x0100, - - /* base == EXYNOS5420_GPIO_PART6_BASE */ - EXYNOS5_GPZ0 = EXYNOS5420_GPIO_PART6_BASE + 0x0000, -}; - -enum { - /* GPIO banks are split into this many parts */ - EXYNOS_GPIO_NUM_PARTS = 6 -}; - -/* A list of valid GPIO numbers for the asm-generic/gpio.h interface */ -enum exynos5_gpio_pin { - /* GPIO_PART1_STARTS */ - GPIO_Y70, - GPIO_Y71, - GPIO_Y72, - GPIO_Y73, - GPIO_Y74, - GPIO_Y75, - GPIO_Y76, - GPIO_Y77, - - /* GPIO_PART2_STARTS */ - GPIO_MAX_PORT_PART_1, - GPIO_X00 = GPIO_MAX_PORT_PART_1, /* 0x08 */ - GPIO_X01, - GPIO_X02, - GPIO_X03, - GPIO_X04, - GPIO_X05, - GPIO_X06, - GPIO_X07, - GPIO_X10, - GPIO_X11, - GPIO_X12, - GPIO_X13, - GPIO_X14, - GPIO_X15, - GPIO_X16, - GPIO_X17, - GPIO_X20, - GPIO_X21, - GPIO_X22, - GPIO_X23, - GPIO_X24, - GPIO_X25, - GPIO_X26, - GPIO_X27, - GPIO_X30, - GPIO_X31, - GPIO_X32, - GPIO_X33, - GPIO_X34, - GPIO_X35, - GPIO_X36, - GPIO_X37, - - /* GPIO_PART3_STARTS */ - GPIO_MAX_PORT_PART_2, - GPIO_C00 = GPIO_MAX_PORT_PART_2, /* 0x28 */ - GPIO_C01, - GPIO_C02, - GPIO_C03, - GPIO_C04, - GPIO_C05, - GPIO_C06, - GPIO_C07, - GPIO_C10, - GPIO_C11, - GPIO_C12, - GPIO_C13, - GPIO_C14, - GPIO_C15, - GPIO_C16, - GPIO_C17, - GPIO_C20, - GPIO_C21, - GPIO_C22, - GPIO_C23, - GPIO_C24, - GPIO_C25, - GPIO_C26, - GPIO_C27, - GPIO_C30, - GPIO_C31, - GPIO_C32, - GPIO_C33, - GPIO_C34, - GPIO_C35, - GPIO_C36, - GPIO_C37, - GPIO_C40, - GPIO_C41, - GPIO_C42, - GPIO_C43, - GPIO_C44, - GPIO_C45, - GPIO_C46, - GPIO_C47, - - GPIO_D10, /* 0x50 */ - GPIO_D11, - GPIO_D12, - GPIO_D13, - GPIO_D14, - GPIO_D15, - GPIO_D16, - GPIO_D17, - - GPIO_Y00, /* 0x58 */ - GPIO_Y01, - GPIO_Y02, - GPIO_Y03, - GPIO_Y04, - GPIO_Y05, - GPIO_Y06, - GPIO_Y07, - GPIO_Y10, - GPIO_Y11, - GPIO_Y12, - GPIO_Y13, - GPIO_Y14, - GPIO_Y15, - GPIO_Y16, - GPIO_Y17, - GPIO_Y20, - GPIO_Y21, - GPIO_Y22, - GPIO_Y23, - GPIO_Y24, - GPIO_Y25, - GPIO_Y26, - GPIO_Y27, - GPIO_Y30, - GPIO_Y31, - GPIO_Y32, - GPIO_Y33, - GPIO_Y34, - GPIO_Y35, - GPIO_Y36, - GPIO_Y37, - GPIO_Y40, - GPIO_Y41, - GPIO_Y42, - GPIO_Y43, - GPIO_Y44, - GPIO_Y45, - GPIO_Y46, - GPIO_Y47, - GPIO_Y50, - GPIO_Y51, - GPIO_Y52, - GPIO_Y53, - GPIO_Y54, - GPIO_Y55, - GPIO_Y56, - GPIO_Y57, - GPIO_Y60, - GPIO_Y61, - GPIO_Y62, - GPIO_Y63, - GPIO_Y64, - GPIO_Y65, - GPIO_Y66, - GPIO_Y67, - - /* GPIO_PART4_STARTS */ - GPIO_MAX_PORT_PART_3, - GPIO_E00 = GPIO_MAX_PORT_PART_3, /* 0x90 */ - GPIO_E01, - GPIO_E02, - GPIO_E03, - GPIO_E04, - GPIO_E05, - GPIO_E06, - GPIO_E07, - GPIO_E10, - GPIO_E11, - GPIO_E12, - GPIO_E13, - GPIO_E14, - GPIO_E15, - GPIO_E16, - GPIO_E17, - - GPIO_F00, /* 0xa0 */ - GPIO_F01, - GPIO_F02, - GPIO_F03, - GPIO_F04, - GPIO_F05, - GPIO_F06, - GPIO_F07, - GPIO_F10, - GPIO_F11, - GPIO_F12, - GPIO_F13, - GPIO_F14, - GPIO_F15, - GPIO_F16, - GPIO_F17, - - GPIO_G00, /* 0xb0 */ - GPIO_G01, - GPIO_G02, - GPIO_G03, - GPIO_G04, - GPIO_G05, - GPIO_G06, - GPIO_G07, - GPIO_G10, - GPIO_G11, - GPIO_G12, - GPIO_G13, - GPIO_G14, - GPIO_G15, - GPIO_G16, - GPIO_G17, - GPIO_G20, - GPIO_G21, - GPIO_G22, - GPIO_G23, - GPIO_G24, - GPIO_G25, - GPIO_G26, - GPIO_G27, - - GPIO_J40, /* 0xc8 */ - GPIO_J41, - GPIO_J42, - GPIO_J43, - GPIO_J44, - GPIO_J45, - GPIO_J46, - GPIO_J47, - - /* GPIO_PART5_STARTS */ - GPIO_MAX_PORT_PART_4, - GPIO_A00 = GPIO_MAX_PORT_PART_4, /* 0xd0 */ - GPIO_A01, - GPIO_A02, - GPIO_A03, - GPIO_A04, - GPIO_A05, - GPIO_A06, - GPIO_A07, - GPIO_A10, - GPIO_A11, - GPIO_A12, - GPIO_A13, - GPIO_A14, - GPIO_A15, - GPIO_A16, - GPIO_A17, - GPIO_A20, - GPIO_A21, - GPIO_A22, - GPIO_A23, - GPIO_A24, - GPIO_A25, - GPIO_A26, - GPIO_A27, - - GPIO_B00, /* 0xe8 */ - GPIO_B01, - GPIO_B02, - GPIO_B03, - GPIO_B04, - GPIO_B05, - GPIO_B06, - GPIO_B07, - GPIO_B10, - GPIO_B11, - GPIO_B12, - GPIO_B13, - GPIO_B14, - GPIO_B15, - GPIO_B16, - GPIO_B17, - GPIO_B20, - GPIO_B21, - GPIO_B22, - GPIO_B23, - GPIO_B24, - GPIO_B25, - GPIO_B26, - GPIO_B27, - GPIO_B30, - GPIO_B31, - GPIO_B32, - GPIO_B33, - GPIO_B34, - GPIO_B35, - GPIO_B36, - GPIO_B37, - GPIO_B40, - GPIO_B41, - GPIO_B42, - GPIO_B43, - GPIO_B44, - GPIO_B45, - GPIO_B46, - GPIO_B47, - - GPIO_H00, /* 0x110 */ - GPIO_H01, - GPIO_H02, - GPIO_H03, - GPIO_H04, - GPIO_H05, - GPIO_H06, - GPIO_H07, - - /* GPIO_PART6_STARTS */ - GPIO_MAX_PORT_PART_5, - GPIO_Z00 = GPIO_MAX_PORT_PART_5, /* 0x118 */ - GPIO_Z01, - GPIO_Z02, - GPIO_Z03, - GPIO_Z04, - GPIO_Z05, - GPIO_Z06, - GPIO_Z07, - GPIO_MAX_PORT -}; - -/** - * Set GPIO pin configuration. - * - * @param gpio GPIO pin - * @param cfg Either GPIO_INPUT, GPIO_OUTPUT, or GPIO_IRQ - */ -void gpio_cfg_pin(int gpio, int cfg); - -/** - * Set GPIO pull mode. - * - * @param gpio GPIO pin - * @param mode Either GPIO_PULL_DOWN or GPIO_PULL_UP - */ -void gpio_set_pull(int gpio, int mode); - -/** - * Set GPIO drive strength level. - * - * @param gpio GPIO pin - * @param mode Either GPIO_DRV_1X, GPIO_DRV_2X, GPIO_DRV_3X, or GPIO_DRV_4X - */ -void gpio_set_drv(int gpio, int mode); - -/** - * Set GPIO drive rate. - * - * @param gpio GPIO pin - * @param mode Either GPIO_DRV_FAST or GPIO_DRV_SLOW - */ -void gpio_set_rate(int gpio, int mode); - -/* - * reads only a single GPIO - * - * @param gpio GPIO to read - * @return -1 if the value cannot be determined. Otherwise returns - * the corresponding MVL3 enum value. - */ -int gpio_read_mvl3(unsigned gpio); - -void gpio_info(void); - -/* - * Generic GPIO API for U-Boot - * - * GPIOs are numbered from 0 to GPIO_COUNT-1 which value is defined - * by the SOC/architecture. - * - * Each GPIO can be an input or output. If an input then its value can - * be read as 0 or 1. If an output then its value can be set to 0 or 1. - * If you try to write an input then the value is undefined. If you try - * to read an output, barring something very unusual, you will get - * back the value of the output that you previously set. - * - * In some cases the operation may fail, for example if the GPIO number - * is out of range, or the GPIO is not available because its pin is - * being used by another function. In that case, functions may return - * an error value of -1. - */ - -/** - * Make a GPIO an input. - * - * @param gpio GPIO number - * @return 0 if ok, -1 on error - */ -int gpio_direction_input(unsigned gpio); - -/** - * Make a GPIO an output, and set its value. - * - * @param gpio GPIO number - * @param value GPIO value (0 for low or 1 for high) - * @return 0 if ok, -1 on error - */ -int gpio_direction_output(unsigned gpio, int value); - -/** - * Get a GPIO's value. This will work whether the GPIO is an input - * or an output. - * - * @param gpio GPIO number - * @return 0 if low, 1 if high, -1 on error - */ -int gpio_get_value(unsigned gpio); - -/** - * Set an output GPIO's value. The GPIO must already be an output or - * this function may have no effect. - * - * @param gpio GPIO number - * @param value GPIO value (0 for low or 1 for high) - * @return 0 if ok, -1 on error - */ -int gpio_set_value(unsigned gpio, int value); - -/* - * Many-value logic (3 states). This can be used for inputs whereby presence - * of external pull-up or pull-down resistors can be added to overcome internal - * pull-ups/pull-downs and force a single value. - * - * Thus, external pull resistors can force a 0 or 1 and if the value changes - * along with internal pull-up/down enable then the input is floating. - * - * Vpd | Vpu | MVL - * ----------------- - * 0 | 0 | 0 - * ----------------- - * 0 | 1 | Z <-- floating input will follow internal pull up/down - * ----------------- - * 1 | 1 | 1 - */ -enum mvl3 { - LOGIC_0, - LOGIC_1, - LOGIC_Z, /* high impedence / tri-stated / floating */ -}; - -#endif /* CPU_SAMSUNG_EXYNOS5420_GPIO_H */ |