summaryrefslogtreecommitdiff
path: root/arch/arm/mach-omap2/devices.c
blob: 9cda974a3009f3295e7bd013709f1bf586752282 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
/*
 * linux/arch/arm/mach-omap2/devices.c
 *
 * OMAP2 platform device setup/initialization
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <linux/clk.h>
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/pinctrl/machine.h>
#include <linux/platform_data/mailbox-omap.h>

#include <asm/mach-types.h>
#include <asm/mach/map.h>

#include <linux/omap-dma.h>

#include "iomap.h"
#include "omap_hwmod.h"
#include "omap_device.h"

#include "soc.h"
#include "common.h"
#include "mux.h"
#include "control.h"
#include "display.h"

#define L3_MODULES_MAX_LEN 12
#define L3_MODULES 3

static int __init omap3_l3_init(void)
{
	struct omap_hwmod *oh;
	struct platform_device *pdev;
	char oh_name[L3_MODULES_MAX_LEN];

	/*
	 * To avoid code running on other OMAPs in
	 * multi-omap builds
	 */
	if (!(cpu_is_omap34xx()) || of_have_populated_dt())
		return -ENODEV;

	snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");

	oh = omap_hwmod_lookup(oh_name);

	if (!oh)
		pr_err("could not look up %s\n", oh_name);

	pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0);

	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);

	return PTR_ERR_OR_ZERO(pdev);
}
omap_postcore_initcall(omap3_l3_init);

#if defined(CONFIG_OMAP2PLUS_MBOX) || defined(CONFIG_OMAP2PLUS_MBOX_MODULE)
static inline void __init omap_init_mbox(void)
{
	struct omap_hwmod *oh;
	struct platform_device *pdev;
	struct omap_mbox_pdata *pdata;

	oh = omap_hwmod_lookup("mailbox");
	if (!oh) {
		pr_err("%s: unable to find hwmod\n", __func__);
		return;
	}
	if (!oh->dev_attr) {
		pr_err("%s: hwmod doesn't have valid attrs\n", __func__);
		return;
	}

	pdata = (struct omap_mbox_pdata *)oh->dev_attr;
	pdev = omap_device_build("omap-mailbox", -1, oh, pdata, sizeof(*pdata));
	WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
						__func__, PTR_ERR(pdev));
}
#else
static inline void omap_init_mbox(void) { }
#endif /* CONFIG_OMAP2PLUS_MBOX */

static inline void omap_init_sti(void) {}

#if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)

#include <linux/platform_data/spi-omap2-mcspi.h>

static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
{
	struct platform_device *pdev;
	char *name = "omap2_mcspi";
	struct omap2_mcspi_platform_config *pdata;
	static int spi_num;
	struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;

	pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
	if (!pdata) {
		pr_err("Memory allocation for McSPI device failed\n");
		return -ENOMEM;
	}

	pdata->num_cs = mcspi_attrib->num_chipselect;
	switch (oh->class->rev) {
	case OMAP2_MCSPI_REV:
	case OMAP3_MCSPI_REV:
			pdata->regs_offset = 0;
			break;
	case OMAP4_MCSPI_REV:
			pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
			break;
	default:
			pr_err("Invalid McSPI Revision value\n");
			kfree(pdata);
			return -EINVAL;
	}

	spi_num++;
	pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata));
	WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
				name, oh->name);
	kfree(pdata);
	return 0;
}

static void omap_init_mcspi(void)
{
	omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
}

#else
static inline void omap_init_mcspi(void) {}
#endif

/**
 * omap_init_rng - bind the RNG hwmod to the RNG omap_device
 *
 * Bind the RNG hwmod to the RNG omap_device.  No return value.
 */
static void omap_init_rng(void)
{
	struct omap_hwmod *oh;
	struct platform_device *pdev;

	oh = omap_hwmod_lookup("rng");
	if (!oh)
		return;

	pdev = omap_device_build("omap_rng", -1, oh, NULL, 0);
	WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
}

static void __init omap_init_sham(void)
{
	struct omap_hwmod *oh;
	struct platform_device *pdev;

	oh = omap_hwmod_lookup("sham");
	if (!oh)
		return;

	pdev = omap_device_build("omap-sham", -1, oh, NULL, 0);
	WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n");
}

static void __init omap_init_aes(void)
{
	struct omap_hwmod *oh;
	struct platform_device *pdev;

	oh = omap_hwmod_lookup("aes");
	if (!oh)
		return;

	pdev = omap_device_build("omap-aes", -1, oh, NULL, 0);
	WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n");
}

/*-------------------------------------------------------------------------*/

#if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
	defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
};
#else
static struct resource omap_vout_resource[2] = {
};
#endif

static struct platform_device omap_vout_device = {
	.name		= "omap_vout",
	.num_resources	= ARRAY_SIZE(omap_vout_resource),
	.resource 	= &omap_vout_resource[0],
	.id		= -1,
};

int __init omap_init_vout(void)
{
	return platform_device_register(&omap_vout_device);
}
#else
int __init omap_init_vout(void) { return 0; }
#endif

/*-------------------------------------------------------------------------*/

static int __init omap2_init_devices(void)
{
	/* Enable dummy states for those platforms without pinctrl support */
	if (!of_have_populated_dt())
		pinctrl_provide_dummies();

	/* If dtb is there, the devices will be created dynamically */
	if (!of_have_populated_dt()) {
		/*
		 * please keep these calls, and their implementations above,
		 * in alphabetical order so they're easier to sort through.
		 */
		omap_init_mbox();
		omap_init_mcspi();
		omap_init_sham();
		omap_init_aes();
		omap_init_rng();
	}
	omap_init_sti();

	return 0;
}
omap_arch_initcall(omap2_init_devices);

static int __init omap_gpmc_init(void)
{
	struct omap_hwmod *oh;
	struct platform_device *pdev;
	char *oh_name = "gpmc";

	/*
	 * if the board boots up with a populated DT, do not
	 * manually add the device from this initcall
	 */
	if (of_have_populated_dt())
		return -ENODEV;

	oh = omap_hwmod_lookup(oh_name);
	if (!oh) {
		pr_err("Could not look up %s\n", oh_name);
		return -ENODEV;
	}

	pdev = omap_device_build("omap-gpmc", -1, oh, NULL, 0);
	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);

	return PTR_ERR_OR_ZERO(pdev);
}
omap_postcore_initcall(omap_gpmc_init);