Stefan Roese | 0d974d5 | 2007-03-24 15:57:09 +0100 | [diff] [blame] | 1 | /* |
Stefan Roese | c813f1f | 2008-03-11 16:53:00 +0100 | [diff] [blame] | 2 | * (C) Copyright 2007-2008 |
Stefan Roese | 0d974d5 | 2007-03-24 15:57:09 +0100 | [diff] [blame] | 3 | * Stefan Roese, DENX Software Engineering, sr@denx.de. |
| 4 | * |
| 5 | * See file CREDITS for list of people who contributed to this |
| 6 | * project. |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or |
| 9 | * modify it under the terms of the GNU General Public License as |
| 10 | * published by the Free Software Foundation; either version 2 of |
| 11 | * the License, or (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU General Public License |
| 19 | * along with this program; if not, write to the Free Software |
| 20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
| 21 | * MA 02111-1307 USA |
| 22 | */ |
| 23 | |
Stefan Roese | aee747f | 2007-11-15 14:23:55 +0100 | [diff] [blame] | 24 | #ifndef __ASM_PPC_GPIO_H |
| 25 | #define __ASM_PPC_GPIO_H |
| 26 | |
Matthias Fuchs | da799f6 | 2009-07-20 12:15:38 +0200 | [diff] [blame] | 27 | #include <asm/types.h> |
| 28 | |
Stefan Roese | 0d974d5 | 2007-03-24 15:57:09 +0100 | [diff] [blame] | 29 | /* 4xx PPC's have 2 GPIO controllers */ |
| 30 | #if defined(CONFIG_405EZ) || \ |
| 31 | defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ |
Stefan Roese | c813f1f | 2008-03-11 16:53:00 +0100 | [diff] [blame] | 32 | defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ |
| 33 | defined(CONFIG_460EX) || defined(CONFIG_460GT) |
Stefan Roese | 0d974d5 | 2007-03-24 15:57:09 +0100 | [diff] [blame] | 34 | #define GPIO_GROUP_MAX 2 |
| 35 | #else |
| 36 | #define GPIO_GROUP_MAX 1 |
| 37 | #endif |
| 38 | |
Matthias Fuchs | da799f6 | 2009-07-20 12:15:38 +0200 | [diff] [blame] | 39 | /* GPIO controller */ |
| 40 | struct ppc4xx_gpio { |
| 41 | u32 or; /* Output Control */ |
| 42 | u32 tcr; /* Tri-State Control */ |
| 43 | u32 osl; /* Output Select 16..31 */ |
| 44 | u32 osh; /* Output Select 0..15 */ |
| 45 | u32 tsl; /* Tri-State Select 16..31 */ |
| 46 | u32 tsh; /* Tri-State Select 0..15 */ |
| 47 | u32 odr; /* Open Drain */ |
| 48 | u32 ir; /* Input */ |
| 49 | u32 rr1; /* Receive Register 1 */ |
| 50 | u32 rr2; /* Receive Register 2 */ |
| 51 | u32 rr3; /* Receive Register 3 */ |
| 52 | u32 reserved; |
| 53 | u32 is1l; /* Input Select 1 16..31 */ |
| 54 | u32 is1h; /* Input Select 1 0..15 */ |
| 55 | u32 is2l; /* Input Select 2 16..31 */ |
| 56 | u32 is2h; /* Input Select 2 0..15 */ |
| 57 | u32 is3l; /* Input Select 3 16..31 */ |
| 58 | u32 is3h; /* Input Select 3 0..15 */ |
| 59 | }; |
| 60 | |
Stefan Roese | aee747f | 2007-11-15 14:23:55 +0100 | [diff] [blame] | 61 | /* Offsets */ |
| 62 | #define GPIOx_OR 0x00 /* GPIO Output Register */ |
| 63 | #define GPIOx_TCR 0x04 /* GPIO Three-State Control Register */ |
| 64 | #define GPIOx_OSL 0x08 /* GPIO Output Select Register (Bits 0-31) */ |
| 65 | #define GPIOx_OSH 0x0C /* GPIO Ouput Select Register (Bits 32-63) */ |
| 66 | #define GPIOx_TSL 0x10 /* GPIO Three-State Select Register (Bits 0-31) */ |
| 67 | #define GPIOx_TSH 0x14 /* GPIO Three-State Select Register (Bits 32-63) */ |
| 68 | #define GPIOx_ODR 0x18 /* GPIO Open drain Register */ |
| 69 | #define GPIOx_IR 0x1C /* GPIO Input Register */ |
| 70 | #define GPIOx_RR1 0x20 /* GPIO Receive Register 1 */ |
| 71 | #define GPIOx_RR2 0x24 /* GPIO Receive Register 2 */ |
| 72 | #define GPIOx_RR3 0x28 /* GPIO Receive Register 3 */ |
| 73 | #define GPIOx_IS1L 0x30 /* GPIO Input Select Register 1 (Bits 0-31) */ |
| 74 | #define GPIOx_IS1H 0x34 /* GPIO Input Select Register 1 (Bits 32-63) */ |
| 75 | #define GPIOx_IS2L 0x38 /* GPIO Input Select Register 2 (Bits 0-31) */ |
| 76 | #define GPIOx_IS2H 0x3C /* GPIO Input Select Register 2 (Bits 32-63) */ |
| 77 | #define GPIOx_IS3L 0x40 /* GPIO Input Select Register 3 (Bits 0-31) */ |
| 78 | #define GPIOx_IS3H 0x44 /* GPIO Input Select Register 3 (Bits 32-63) */ |
| 79 | |
| 80 | #define GPIO_OR(x) (x+GPIOx_OR) /* GPIO Output Register */ |
| 81 | #define GPIO_TCR(x) (x+GPIOx_TCR) /* GPIO Three-State Control Register */ |
| 82 | #define GPIO_OS(x) (x+GPIOx_OSL) /* GPIO Output Select Register High or Low */ |
| 83 | #define GPIO_TS(x) (x+GPIOx_TSL) /* GPIO Three-state Control Reg High or Low */ |
| 84 | #define GPIO_IS1(x) (x+GPIOx_IS1L) /* GPIO Input register1 High or Low */ |
| 85 | #define GPIO_IS2(x) (x+GPIOx_IS2L) /* GPIO Input register2 High or Low */ |
| 86 | #define GPIO_IS3(x) (x+GPIOx_IS3L) /* GPIO Input register3 High or Low */ |
| 87 | |
| 88 | #define GPIO0 0 |
| 89 | #define GPIO1 1 |
| 90 | |
Stefan Roese | 0d974d5 | 2007-03-24 15:57:09 +0100 | [diff] [blame] | 91 | #define GPIO_MAX 32 |
| 92 | #define GPIO_ALT1_SEL 0x40000000 |
| 93 | #define GPIO_ALT2_SEL 0x80000000 |
| 94 | #define GPIO_ALT3_SEL 0xc0000000 |
| 95 | #define GPIO_IN_SEL 0x40000000 |
| 96 | #define GPIO_MASK 0xc0000000 |
| 97 | |
| 98 | #define GPIO_VAL(gpio) (0x80000000 >> (gpio)) |
| 99 | |
| 100 | #ifndef __ASSEMBLY__ |
| 101 | typedef enum gpio_select { GPIO_SEL, GPIO_ALT1, GPIO_ALT2, GPIO_ALT3 } gpio_select_t; |
| 102 | typedef enum gpio_driver { GPIO_DIS, GPIO_IN, GPIO_OUT, GPIO_BI } gpio_driver_t; |
| 103 | typedef enum gpio_out { GPIO_OUT_0, GPIO_OUT_1, GPIO_OUT_NO_CHG } gpio_out_t; |
| 104 | |
| 105 | typedef struct { |
Stefan Roese | 85f7373 | 2007-06-15 07:39:43 +0200 | [diff] [blame] | 106 | unsigned long add; /* gpio core base address */ |
| 107 | gpio_driver_t in_out; /* Driver Setting */ |
| 108 | gpio_select_t alt_nb; /* Selected Alternate */ |
| 109 | gpio_out_t out_val;/* Default Output Value */ |
Stefan Roese | 0d974d5 | 2007-03-24 15:57:09 +0100 | [diff] [blame] | 110 | } gpio_param_s; |
| 111 | #endif |
| 112 | |
| 113 | void gpio_config(int pin, int in_out, int gpio_alt, int out_val); |
| 114 | void gpio_write_bit(int pin, int val); |
Stefan Roese | 85f7373 | 2007-06-15 07:39:43 +0200 | [diff] [blame] | 115 | int gpio_read_out_bit(int pin); |
Lawrence R. Johnson | 5ab884b | 2008-01-03 18:54:00 -0500 | [diff] [blame] | 116 | int gpio_read_in_bit(int pin); |
Stefan Roese | 0d974d5 | 2007-03-24 15:57:09 +0100 | [diff] [blame] | 117 | void gpio_set_chip_configuration(void); |
Stefan Roese | aee747f | 2007-11-15 14:23:55 +0100 | [diff] [blame] | 118 | |
| 119 | #endif /* __ASM_PPC_GPIO_H */ |