1 | // SPDX-License-Identifier: GPL-2.0-only |
2 | /* |
3 | * OMAP15xx specific gpio init |
4 | * |
5 | * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/ |
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_MPUIO_BASE |
18 | #define OMAP1510_GPIO_BASE 0xFFFCE000 |
19 | |
20 | /* gpio1 */ |
21 | static struct resource omap15xx_mpu_gpio_resources[] = { |
22 | { |
23 | .start = OMAP1_MPUIO_VBASE, |
24 | .end = OMAP1_MPUIO_VBASE + SZ_2K - 1, |
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_mpuio_regs = { |
34 | .revision = USHRT_MAX, |
35 | .direction = OMAP_MPUIO_IO_CNTL, |
36 | .datain = OMAP_MPUIO_INPUT_LATCH, |
37 | .dataout = OMAP_MPUIO_OUTPUT, |
38 | .irqstatus = OMAP_MPUIO_GPIO_INT, |
39 | .irqenable = OMAP_MPUIO_GPIO_MASKIT, |
40 | .irqenable_inv = true, |
41 | .irqctrl = OMAP_MPUIO_GPIO_INT_EDGE, |
42 | }; |
43 | |
44 | static struct omap_gpio_platform_data omap15xx_mpu_gpio_config = { |
45 | .is_mpuio = true, |
46 | .bank_width = 16, |
47 | .bank_stride = 1, |
48 | .regs = &omap15xx_mpuio_regs, |
49 | }; |
50 | |
51 | static struct platform_device omap15xx_mpu_gpio = { |
52 | .name = "omap_gpio" , |
53 | .id = 0, |
54 | .dev = { |
55 | .platform_data = &omap15xx_mpu_gpio_config, |
56 | }, |
57 | .num_resources = ARRAY_SIZE(omap15xx_mpu_gpio_resources), |
58 | .resource = omap15xx_mpu_gpio_resources, |
59 | }; |
60 | |
61 | /* gpio2 */ |
62 | static struct resource omap15xx_gpio_resources[] = { |
63 | { |
64 | .start = OMAP1510_GPIO_BASE, |
65 | .end = OMAP1510_GPIO_BASE + SZ_2K - 1, |
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_regs = { |
75 | .revision = USHRT_MAX, |
76 | .direction = OMAP1510_GPIO_DIR_CONTROL, |
77 | .datain = OMAP1510_GPIO_DATA_INPUT, |
78 | .dataout = OMAP1510_GPIO_DATA_OUTPUT, |
79 | .irqstatus = OMAP1510_GPIO_INT_STATUS, |
80 | .irqenable = OMAP1510_GPIO_INT_MASK, |
81 | .irqenable_inv = true, |
82 | .irqctrl = OMAP1510_GPIO_INT_CONTROL, |
83 | .pinctrl = OMAP1510_GPIO_PIN_CONTROL, |
84 | }; |
85 | |
86 | static struct omap_gpio_platform_data omap15xx_gpio_config = { |
87 | .bank_width = 16, |
88 | .regs = &omap15xx_gpio_regs, |
89 | }; |
90 | |
91 | static struct platform_device omap15xx_gpio = { |
92 | .name = "omap_gpio" , |
93 | .id = 1, |
94 | .dev = { |
95 | .platform_data = &omap15xx_gpio_config, |
96 | }, |
97 | .num_resources = ARRAY_SIZE(omap15xx_gpio_resources), |
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_initcall. |
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_gpio); |
112 | platform_device_register(&omap15xx_gpio); |
113 | |
114 | return 0; |
115 | } |
116 | postcore_initcall(omap15xx_gpio_init); |
117 | |