blob: 02b3eb2e201c2fe63670a5b6f64c3a8161eb06fd [file] [log] [blame]
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -08001/*
2 * OMAP15xx specific gpio init
3 *
4 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
5 *
6 * Author:
7 * Charulatha V <charu@ti.com>
8 *
9 * This program is free software; you can redistribute it and/or
10 * modify it under the terms of the GNU General Public License as
11 * published by the Free Software Foundation version 2.
12 *
13 * This program is distributed "as is" WITHOUT ANY WARRANTY of any
14 * kind, whether express or implied; without even the implied warranty
15 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 */
18
19#include <linux/gpio.h>
Tony Lindgren4b254082012-08-30 15:37:24 -070020#include <linux/platform_data/gpio-omap.h>
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -080021
Tony Lindgren873e6982012-10-31 09:54:56 -070022#include <mach/irqs.h>
23
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -080024#define OMAP1_MPUIO_VBASE OMAP1_MPUIO_BASE
25#define OMAP1510_GPIO_BASE 0xFFFCE000
26
27/* gpio1 */
28static struct __initdata resource omap15xx_mpu_gpio_resources[] = {
29 {
30 .start = OMAP1_MPUIO_VBASE,
31 .end = OMAP1_MPUIO_VBASE + SZ_2K - 1,
32 .flags = IORESOURCE_MEM,
33 },
34 {
35 .start = INT_MPUIO,
36 .flags = IORESOURCE_IRQ,
37 },
38};
39
Kevin Hilmanfa87931a2011-04-20 16:31:23 -070040static struct omap_gpio_reg_offs omap15xx_mpuio_regs = {
Kevin Hilmane5ff4442011-04-22 14:37:16 -070041 .revision = USHRT_MAX,
Kevin Hilmanfa87931a2011-04-20 16:31:23 -070042 .direction = OMAP_MPUIO_IO_CNTL,
43 .datain = OMAP_MPUIO_INPUT_LATCH,
44 .dataout = OMAP_MPUIO_OUTPUT,
Kevin Hilmaneef4bec2011-04-21 09:17:35 -070045 .irqstatus = OMAP_MPUIO_GPIO_INT,
Kevin Hilman28f3b5a2011-04-21 09:53:06 -070046 .irqenable = OMAP_MPUIO_GPIO_MASKIT,
47 .irqenable_inv = true,
Tarun Kanti DebBarma5e571f32011-09-13 15:02:14 +053048 .irqctrl = OMAP_MPUIO_GPIO_INT_EDGE,
Kevin Hilmanfa87931a2011-04-20 16:31:23 -070049};
50
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -080051static struct __initdata omap_gpio_platform_data omap15xx_mpu_gpio_config = {
Charulatha Vd0d665a2011-08-31 00:02:21 +053052 .is_mpuio = true,
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -080053 .bank_width = 16,
Tony Lindgren5de62b82010-12-07 16:26:58 -080054 .bank_stride = 1,
Kevin Hilmanfa87931a2011-04-20 16:31:23 -070055 .regs = &omap15xx_mpuio_regs,
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -080056};
57
Janusz Krzysztofik07ad6ab2011-07-04 03:56:15 -070058static struct platform_device omap15xx_mpu_gpio = {
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -080059 .name = "omap_gpio",
60 .id = 0,
61 .dev = {
62 .platform_data = &omap15xx_mpu_gpio_config,
63 },
64 .num_resources = ARRAY_SIZE(omap15xx_mpu_gpio_resources),
65 .resource = omap15xx_mpu_gpio_resources,
66};
67
68/* gpio2 */
69static struct __initdata resource omap15xx_gpio_resources[] = {
70 {
71 .start = OMAP1510_GPIO_BASE,
72 .end = OMAP1510_GPIO_BASE + SZ_2K - 1,
73 .flags = IORESOURCE_MEM,
74 },
75 {
76 .start = INT_GPIO_BANK1,
77 .flags = IORESOURCE_IRQ,
78 },
79};
80
Kevin Hilmanfa87931a2011-04-20 16:31:23 -070081static struct omap_gpio_reg_offs omap15xx_gpio_regs = {
Kevin Hilmane5ff4442011-04-22 14:37:16 -070082 .revision = USHRT_MAX,
Kevin Hilmanfa87931a2011-04-20 16:31:23 -070083 .direction = OMAP1510_GPIO_DIR_CONTROL,
84 .datain = OMAP1510_GPIO_DATA_INPUT,
85 .dataout = OMAP1510_GPIO_DATA_OUTPUT,
Kevin Hilmaneef4bec2011-04-21 09:17:35 -070086 .irqstatus = OMAP1510_GPIO_INT_STATUS,
Kevin Hilman28f3b5a2011-04-21 09:53:06 -070087 .irqenable = OMAP1510_GPIO_INT_MASK,
88 .irqenable_inv = true,
Tarun Kanti DebBarma5e571f32011-09-13 15:02:14 +053089 .irqctrl = OMAP1510_GPIO_INT_CONTROL,
Charulatha Vfad96ea2011-05-25 11:23:50 +053090 .pinctrl = OMAP1510_GPIO_PIN_CONTROL,
Kevin Hilmanfa87931a2011-04-20 16:31:23 -070091};
92
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -080093static struct __initdata omap_gpio_platform_data omap15xx_gpio_config = {
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -080094 .bank_width = 16,
Kevin Hilmanfa87931a2011-04-20 16:31:23 -070095 .regs = &omap15xx_gpio_regs,
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -080096};
97
Janusz Krzysztofik07ad6ab2011-07-04 03:56:15 -070098static struct platform_device omap15xx_gpio = {
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -080099 .name = "omap_gpio",
100 .id = 1,
101 .dev = {
102 .platform_data = &omap15xx_gpio_config,
103 },
104 .num_resources = ARRAY_SIZE(omap15xx_gpio_resources),
105 .resource = omap15xx_gpio_resources,
106};
107
108/*
109 * omap15xx_gpio_init needs to be done before
110 * machine_init functions access gpio APIs.
111 * Hence omap15xx_gpio_init is a postcore_initcall.
112 */
113static int __init omap15xx_gpio_init(void)
114{
115 if (!cpu_is_omap15xx())
116 return -EINVAL;
117
118 platform_device_register(&omap15xx_mpu_gpio);
119 platform_device_register(&omap15xx_gpio);
120
Varadarajan, Charulathac95d10b2010-12-07 16:26:56 -0800121 return 0;
122}
123postcore_initcall(omap15xx_gpio_init);