1/*
2 * OMAP7xx 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
21#define OMAP7XX_GPIO1_BASE		0xfffbc000
22#define OMAP7XX_GPIO2_BASE		0xfffbc800
23#define OMAP7XX_GPIO3_BASE		0xfffbd000
24#define OMAP7XX_GPIO4_BASE		0xfffbd800
25#define OMAP7XX_GPIO5_BASE		0xfffbe000
26#define OMAP7XX_GPIO6_BASE		0xfffbe800
27#define OMAP1_MPUIO_VBASE		OMAP1_MPUIO_BASE
28
29/* mpu gpio */
30static struct __initdata resource omap7xx_mpu_gpio_resources[] = {
31	{
32		.start	= OMAP1_MPUIO_VBASE,
33		.end	= OMAP1_MPUIO_VBASE + SZ_2K - 1,
34		.flags	= IORESOURCE_MEM,
35	},
36	{
37		.start	= INT_7XX_MPUIO,
38		.flags	= IORESOURCE_IRQ,
39	},
40};
41
42static struct omap_gpio_reg_offs omap7xx_mpuio_regs = {
43	.revision	= USHRT_MAX,
44	.direction	= OMAP_MPUIO_IO_CNTL / 2,
45	.datain		= OMAP_MPUIO_INPUT_LATCH / 2,
46	.dataout	= OMAP_MPUIO_OUTPUT / 2,
47	.irqstatus	= OMAP_MPUIO_GPIO_INT / 2,
48	.irqenable	= OMAP_MPUIO_GPIO_MASKIT / 2,
49	.irqenable_inv	= true,
50	.irqctrl	= OMAP_MPUIO_GPIO_INT_EDGE >> 1,
51};
52
53static struct __initdata omap_gpio_platform_data omap7xx_mpu_gpio_config = {
54	.virtual_irq_start	= IH_MPUIO_BASE,
55	.is_mpuio		= true,
56	.bank_width		= 16,
57	.bank_stride		= 2,
58	.regs                   = &omap7xx_mpuio_regs,
59};
60
61static struct platform_device omap7xx_mpu_gpio = {
62	.name           = "omap_gpio",
63	.id             = 0,
64	.dev            = {
65		.platform_data = &omap7xx_mpu_gpio_config,
66	},
67	.num_resources = ARRAY_SIZE(omap7xx_mpu_gpio_resources),
68	.resource = omap7xx_mpu_gpio_resources,
69};
70
71/* gpio1 */
72static struct __initdata resource omap7xx_gpio1_resources[] = {
73	{
74		.start	= OMAP7XX_GPIO1_BASE,
75		.end	= OMAP7XX_GPIO1_BASE + SZ_2K - 1,
76		.flags	= IORESOURCE_MEM,
77	},
78	{
79		.start	= INT_7XX_GPIO_BANK1,
80		.flags	= IORESOURCE_IRQ,
81	},
82};
83
84static struct omap_gpio_reg_offs omap7xx_gpio_regs = {
85	.revision	= USHRT_MAX,
86	.direction	= OMAP7XX_GPIO_DIR_CONTROL,
87	.datain		= OMAP7XX_GPIO_DATA_INPUT,
88	.dataout	= OMAP7XX_GPIO_DATA_OUTPUT,
89	.irqstatus	= OMAP7XX_GPIO_INT_STATUS,
90	.irqenable	= OMAP7XX_GPIO_INT_MASK,
91	.irqenable_inv	= true,
92	.irqctrl	= OMAP7XX_GPIO_INT_CONTROL,
93};
94
95static struct __initdata omap_gpio_platform_data omap7xx_gpio1_config = {
96	.virtual_irq_start	= IH_GPIO_BASE,
97	.bank_width		= 32,
98	.regs			= &omap7xx_gpio_regs,
99};
100
101static struct platform_device omap7xx_gpio1 = {
102	.name           = "omap_gpio",
103	.id             = 1,
104	.dev            = {
105		.platform_data = &omap7xx_gpio1_config,
106	},
107	.num_resources = ARRAY_SIZE(omap7xx_gpio1_resources),
108	.resource = omap7xx_gpio1_resources,
109};
110
111/* gpio2 */
112static struct __initdata resource omap7xx_gpio2_resources[] = {
113	{
114		.start	= OMAP7XX_GPIO2_BASE,
115		.end	= OMAP7XX_GPIO2_BASE + SZ_2K - 1,
116		.flags	= IORESOURCE_MEM,
117	},
118	{
119		.start	= INT_7XX_GPIO_BANK2,
120		.flags	= IORESOURCE_IRQ,
121	},
122};
123
124static struct __initdata omap_gpio_platform_data omap7xx_gpio2_config = {
125	.virtual_irq_start	= IH_GPIO_BASE + 32,
126	.bank_width		= 32,
127	.regs			= &omap7xx_gpio_regs,
128};
129
130static struct platform_device omap7xx_gpio2 = {
131	.name           = "omap_gpio",
132	.id             = 2,
133	.dev            = {
134		.platform_data = &omap7xx_gpio2_config,
135	},
136	.num_resources = ARRAY_SIZE(omap7xx_gpio2_resources),
137	.resource = omap7xx_gpio2_resources,
138};
139
140/* gpio3 */
141static struct __initdata resource omap7xx_gpio3_resources[] = {
142	{
143		.start	= OMAP7XX_GPIO3_BASE,
144		.end	= OMAP7XX_GPIO3_BASE + SZ_2K - 1,
145		.flags	= IORESOURCE_MEM,
146	},
147	{
148		.start	= INT_7XX_GPIO_BANK3,
149		.flags	= IORESOURCE_IRQ,
150	},
151};
152
153static struct __initdata omap_gpio_platform_data omap7xx_gpio3_config = {
154	.virtual_irq_start	= IH_GPIO_BASE + 64,
155	.bank_width		= 32,
156	.regs			= &omap7xx_gpio_regs,
157};
158
159static struct platform_device omap7xx_gpio3 = {
160	.name           = "omap_gpio",
161	.id             = 3,
162	.dev            = {
163		.platform_data = &omap7xx_gpio3_config,
164	},
165	.num_resources = ARRAY_SIZE(omap7xx_gpio3_resources),
166	.resource = omap7xx_gpio3_resources,
167};
168
169/* gpio4 */
170static struct __initdata resource omap7xx_gpio4_resources[] = {
171	{
172		.start	= OMAP7XX_GPIO4_BASE,
173		.end	= OMAP7XX_GPIO4_BASE + SZ_2K - 1,
174		.flags	= IORESOURCE_MEM,
175	},
176	{
177		.start	= INT_7XX_GPIO_BANK4,
178		.flags	= IORESOURCE_IRQ,
179	},
180};
181
182static struct __initdata omap_gpio_platform_data omap7xx_gpio4_config = {
183	.virtual_irq_start	= IH_GPIO_BASE + 96,
184	.bank_width		= 32,
185	.regs			= &omap7xx_gpio_regs,
186};
187
188static struct platform_device omap7xx_gpio4 = {
189	.name           = "omap_gpio",
190	.id             = 4,
191	.dev            = {
192		.platform_data = &omap7xx_gpio4_config,
193	},
194	.num_resources = ARRAY_SIZE(omap7xx_gpio4_resources),
195	.resource = omap7xx_gpio4_resources,
196};
197
198/* gpio5 */
199static struct __initdata resource omap7xx_gpio5_resources[] = {
200	{
201		.start	= OMAP7XX_GPIO5_BASE,
202		.end	= OMAP7XX_GPIO5_BASE + SZ_2K - 1,
203		.flags	= IORESOURCE_MEM,
204	},
205	{
206		.start	= INT_7XX_GPIO_BANK5,
207		.flags	= IORESOURCE_IRQ,
208	},
209};
210
211static struct __initdata omap_gpio_platform_data omap7xx_gpio5_config = {
212	.virtual_irq_start	= IH_GPIO_BASE + 128,
213	.bank_width		= 32,
214	.regs			= &omap7xx_gpio_regs,
215};
216
217static struct platform_device omap7xx_gpio5 = {
218	.name           = "omap_gpio",
219	.id             = 5,
220	.dev            = {
221		.platform_data = &omap7xx_gpio5_config,
222	},
223	.num_resources = ARRAY_SIZE(omap7xx_gpio5_resources),
224	.resource = omap7xx_gpio5_resources,
225};
226
227/* gpio6 */
228static struct __initdata resource omap7xx_gpio6_resources[] = {
229	{
230		.start	= OMAP7XX_GPIO6_BASE,
231		.end	= OMAP7XX_GPIO6_BASE + SZ_2K - 1,
232		.flags	= IORESOURCE_MEM,
233	},
234	{
235		.start	= INT_7XX_GPIO_BANK6,
236		.flags	= IORESOURCE_IRQ,
237	},
238};
239
240static struct __initdata omap_gpio_platform_data omap7xx_gpio6_config = {
241	.virtual_irq_start	= IH_GPIO_BASE + 160,
242	.bank_width		= 32,
243	.regs			= &omap7xx_gpio_regs,
244};
245
246static struct platform_device omap7xx_gpio6 = {
247	.name           = "omap_gpio",
248	.id             = 6,
249	.dev            = {
250		.platform_data = &omap7xx_gpio6_config,
251	},
252	.num_resources = ARRAY_SIZE(omap7xx_gpio6_resources),
253	.resource = omap7xx_gpio6_resources,
254};
255
256static struct __initdata platform_device * omap7xx_gpio_dev[] = {
257	&omap7xx_mpu_gpio,
258	&omap7xx_gpio1,
259	&omap7xx_gpio2,
260	&omap7xx_gpio3,
261	&omap7xx_gpio4,
262	&omap7xx_gpio5,
263	&omap7xx_gpio6,
264};
265
266/*
267 * omap7xx_gpio_init needs to be done before
268 * machine_init functions access gpio APIs.
269 * Hence omap7xx_gpio_init is a postcore_initcall.
270 */
271static int __init omap7xx_gpio_init(void)
272{
273	int i;
274
275	if (!cpu_is_omap7xx())
276		return -EINVAL;
277
278	for (i = 0; i < ARRAY_SIZE(omap7xx_gpio_dev); i++)
279		platform_device_register(omap7xx_gpio_dev[i]);
280
281	return 0;
282}
283postcore_initcall(omap7xx_gpio_init);
284