1/*
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>
20#include <linux/platform_data/gpio-omap.h>
21
22#include <mach/irqs.h>
23
24#define OMAP1_MPUIO_VBASE		OMAP1_MPUIO_BASE
25#define OMAP1510_GPIO_BASE		0xFFFCE000
26
27/* gpio1 */
28static struct 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
40static struct omap_gpio_reg_offs omap15xx_mpuio_regs = {
41	.revision       = USHRT_MAX,
42	.direction	= OMAP_MPUIO_IO_CNTL,
43	.datain		= OMAP_MPUIO_INPUT_LATCH,
44	.dataout	= OMAP_MPUIO_OUTPUT,
45	.irqstatus	= OMAP_MPUIO_GPIO_INT,
46	.irqenable	= OMAP_MPUIO_GPIO_MASKIT,
47	.irqenable_inv	= true,
48	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE,
49};
50
51static struct omap_gpio_platform_data omap15xx_mpu_gpio_config = {
52	.is_mpuio		= true,
53	.bank_width		= 16,
54	.bank_stride		= 1,
55	.regs			= &omap15xx_mpuio_regs,
56};
57
58static struct platform_device omap15xx_mpu_gpio = {
59	.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 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
81static struct omap_gpio_reg_offs omap15xx_gpio_regs = {
82	.revision	= USHRT_MAX,
83	.direction	= OMAP1510_GPIO_DIR_CONTROL,
84	.datain		= OMAP1510_GPIO_DATA_INPUT,
85	.dataout	= OMAP1510_GPIO_DATA_OUTPUT,
86	.irqstatus	= OMAP1510_GPIO_INT_STATUS,
87	.irqenable	= OMAP1510_GPIO_INT_MASK,
88	.irqenable_inv	= true,
89	.irqctrl	= OMAP1510_GPIO_INT_CONTROL,
90	.pinctrl	= OMAP1510_GPIO_PIN_CONTROL,
91};
92
93static struct omap_gpio_platform_data omap15xx_gpio_config = {
94	.bank_width		= 16,
95	.regs                   = &omap15xx_gpio_regs,
96};
97
98static struct platform_device omap15xx_gpio = {
99	.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
121	return 0;
122}
123postcore_initcall(omap15xx_gpio_init);
124