1 // SPDX-License-Identifier: GPL-2.0-only 1
2 /*
3 * OMAP15xx specific gpio init
4 *
5 * Copyright (C) 2010 Texas Instruments Incorp
6 *
7 * Author:
8 * Charulatha V <charu@ti.com>
9 */
10
11 #include <linux/platform_data/gpio-omap.h>
12 #include <linux/soc/ti/omap1-soc.h>
13 #include <asm/irq.h>
14
15 #include "irqs.h"
16
17 #define OMAP1_MPUIO_VBASE OMAP1_
18 #define OMAP1510_GPIO_BASE 0xFFFC
19
20 /* gpio1 */
21 static struct resource omap15xx_mpu_gpio_resou
22 {
23 .start = OMAP1_MPUIO_VBASE,
24 .end = OMAP1_MPUIO_VBASE +
25 .flags = IORESOURCE_MEM,
26 },
27 {
28 .start = INT_MPUIO,
29 .flags = IORESOURCE_IRQ,
30 },
31 };
32
33 static struct omap_gpio_reg_offs omap15xx_mpui
34 .revision = USHRT_MAX,
35 .direction = OMAP_MPUIO_IO_CNTL,
36 .datain = OMAP_MPUIO_INPUT_LAT
37 .dataout = OMAP_MPUIO_OUTPUT,
38 .irqstatus = OMAP_MPUIO_GPIO_INT,
39 .irqenable = OMAP_MPUIO_GPIO_MASK
40 .irqenable_inv = true,
41 .irqctrl = OMAP_MPUIO_GPIO_INT_
42 };
43
44 static struct omap_gpio_platform_data omap15xx
45 .is_mpuio = true,
46 .bank_width = 16,
47 .bank_stride = 1,
48 .regs = &omap15xx_mp
49 };
50
51 static struct platform_device omap15xx_mpu_gpi
52 .name = "omap_gpio",
53 .id = 0,
54 .dev = {
55 .platform_data = &omap15xx_mpu
56 },
57 .num_resources = ARRAY_SIZE(omap15xx_m
58 .resource = omap15xx_mpu_gpio_resource
59 };
60
61 /* gpio2 */
62 static struct resource omap15xx_gpio_resources
63 {
64 .start = OMAP1510_GPIO_BASE,
65 .end = OMAP1510_GPIO_BASE +
66 .flags = IORESOURCE_MEM,
67 },
68 {
69 .start = INT_GPIO_BANK1,
70 .flags = IORESOURCE_IRQ,
71 },
72 };
73
74 static struct omap_gpio_reg_offs omap15xx_gpio
75 .revision = USHRT_MAX,
76 .direction = OMAP1510_GPIO_DIR_CO
77 .datain = OMAP1510_GPIO_DATA_I
78 .dataout = OMAP1510_GPIO_DATA_O
79 .irqstatus = OMAP1510_GPIO_INT_ST
80 .irqenable = OMAP1510_GPIO_INT_MA
81 .irqenable_inv = true,
82 .irqctrl = OMAP1510_GPIO_INT_CO
83 .pinctrl = OMAP1510_GPIO_PIN_CO
84 };
85
86 static struct omap_gpio_platform_data omap15xx
87 .bank_width = 16,
88 .regs = &omap15xx_gp
89 };
90
91 static struct platform_device omap15xx_gpio =
92 .name = "omap_gpio",
93 .id = 1,
94 .dev = {
95 .platform_data = &omap15xx_gpi
96 },
97 .num_resources = ARRAY_SIZE(omap15xx_g
98 .resource = omap15xx_gpio_resources,
99 };
100
101 /*
102 * omap15xx_gpio_init needs to be done before
103 * machine_init functions access gpio APIs.
104 * Hence omap15xx_gpio_init is a postcore_init
105 */
106 static int __init omap15xx_gpio_init(void)
107 {
108 if (!cpu_is_omap15xx())
109 return -EINVAL;
110
111 platform_device_register(&omap15xx_mpu
112 platform_device_register(&omap15xx_gpi
113
114 return 0;
115 }
116 postcore_initcall(omap15xx_gpio_init);
117
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