diff options
Diffstat (limited to 'src/cpu/samsung/s5p-common/gpio.h')
| -rw-r--r-- | src/cpu/samsung/s5p-common/gpio.h | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/src/cpu/samsung/s5p-common/gpio.h b/src/cpu/samsung/s5p-common/gpio.h new file mode 100644 index 0000000000..2522808b96 --- /dev/null +++ b/src/cpu/samsung/s5p-common/gpio.h @@ -0,0 +1,173 @@ +/* + * (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 + */ + +#ifndef S5P_GPIO_H_ +#define S5P_GPIO_H_ + +#include <cpu/samsung/s5p-common/cpu.h> /* FIXME: for S5PC110_GPIO_BASE */ + +#ifndef __ASSEMBLY__ +struct s5p_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]; +}; + +struct s5pc100_gpio { + struct s5p_gpio_bank a0; + struct s5p_gpio_bank a1; + struct s5p_gpio_bank b; + struct s5p_gpio_bank c; + struct s5p_gpio_bank d; + struct s5p_gpio_bank e0; + struct s5p_gpio_bank e1; + struct s5p_gpio_bank f0; + struct s5p_gpio_bank f1; + struct s5p_gpio_bank f2; + struct s5p_gpio_bank f3; + struct s5p_gpio_bank g0; + struct s5p_gpio_bank g1; + struct s5p_gpio_bank g2; + struct s5p_gpio_bank g3; + struct s5p_gpio_bank i; + struct s5p_gpio_bank j0; + struct s5p_gpio_bank j1; + struct s5p_gpio_bank j2; + struct s5p_gpio_bank j3; + struct s5p_gpio_bank j4; + struct s5p_gpio_bank k0; + struct s5p_gpio_bank k1; + struct s5p_gpio_bank k2; + struct s5p_gpio_bank k3; + struct s5p_gpio_bank l0; + struct s5p_gpio_bank l1; + struct s5p_gpio_bank l2; + struct s5p_gpio_bank l3; + struct s5p_gpio_bank l4; + struct s5p_gpio_bank h0; + struct s5p_gpio_bank h1; + struct s5p_gpio_bank h2; + struct s5p_gpio_bank h3; +}; + +struct s5pc110_gpio { + struct s5p_gpio_bank a0; + struct s5p_gpio_bank a1; + struct s5p_gpio_bank b; + struct s5p_gpio_bank c0; + struct s5p_gpio_bank c1; + struct s5p_gpio_bank d0; + struct s5p_gpio_bank d1; + struct s5p_gpio_bank e0; + struct s5p_gpio_bank e1; + struct s5p_gpio_bank f0; + struct s5p_gpio_bank f1; + struct s5p_gpio_bank f2; + struct s5p_gpio_bank f3; + struct s5p_gpio_bank g0; + struct s5p_gpio_bank g1; + struct s5p_gpio_bank g2; + struct s5p_gpio_bank g3; + struct s5p_gpio_bank i; + struct s5p_gpio_bank j0; + struct s5p_gpio_bank j1; + struct s5p_gpio_bank j2; + struct s5p_gpio_bank j3; + struct s5p_gpio_bank j4; + struct s5p_gpio_bank mp0_1; + struct s5p_gpio_bank mp0_2; + struct s5p_gpio_bank mp0_3; + struct s5p_gpio_bank mp0_4; + struct s5p_gpio_bank mp0_5; + struct s5p_gpio_bank mp0_6; + struct s5p_gpio_bank mp0_7; + struct s5p_gpio_bank mp1_0; + struct s5p_gpio_bank mp1_1; + struct s5p_gpio_bank mp1_2; + struct s5p_gpio_bank mp1_3; + struct s5p_gpio_bank mp1_4; + struct s5p_gpio_bank mp1_5; + struct s5p_gpio_bank mp1_6; + struct s5p_gpio_bank mp1_7; + struct s5p_gpio_bank mp1_8; + struct s5p_gpio_bank mp2_0; + struct s5p_gpio_bank mp2_1; + struct s5p_gpio_bank mp2_2; + struct s5p_gpio_bank mp2_3; + struct s5p_gpio_bank mp2_4; + struct s5p_gpio_bank mp2_5; + struct s5p_gpio_bank mp2_6; + struct s5p_gpio_bank mp2_7; + struct s5p_gpio_bank mp2_8; + struct s5p_gpio_bank res1[48]; + struct s5p_gpio_bank h0; + struct s5p_gpio_bank h1; + struct s5p_gpio_bank h2; + struct s5p_gpio_bank h3; +}; + +/* functions */ +void s5p_gpio_cfg_pin(struct s5p_gpio_bank *bank, int gpio, int cfg); +void s5p_gpio_direction_output(struct s5p_gpio_bank *bank, int gpio, int en); +void s5p_gpio_direction_input(struct s5p_gpio_bank *bank, int gpio); +void s5p_gpio_set_value(struct s5p_gpio_bank *bank, int gpio, int en); +unsigned int s5p_gpio_get_value(struct s5p_gpio_bank *bank, int gpio); +void s5p_gpio_set_pull(struct s5p_gpio_bank *bank, int gpio, int mode); +void s5p_gpio_set_drv(struct s5p_gpio_bank *bank, int gpio, int mode); +void s5p_gpio_set_rate(struct s5p_gpio_bank *bank, int gpio, int mode); + +/* GPIO pins per bank */ +#define GPIO_PER_BANK 8 + +static inline unsigned int s5p_gpio_base(int nr) +{ + return S5PC110_GPIO_BASE; +} + +#define s5pc110_gpio_get_nr(bank, pin) \ + ((((((unsigned int)&(((struct s5pc110_gpio *)S5PC110_GPIO_BASE)->bank))\ + - S5PC110_GPIO_BASE) / sizeof(struct s5p_gpio_bank)) \ + * GPIO_PER_BANK) + pin) +#endif + +/* 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 0x2 + +/* 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 + +#endif /* S5P_GPIO_H_ */ |