1/*
2 * linux/arch/arm/mach-omap2/devices.c
3 *
4 * OMAP2 platform device setup/initialization
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 */
11#include <linux/gpio.h>
12#include <linux/kernel.h>
13#include <linux/init.h>
14#include <linux/platform_device.h>
15#include <linux/io.h>
16#include <linux/clk.h>
17#include <linux/err.h>
18#include <linux/slab.h>
19#include <linux/of.h>
20#include <linux/pinctrl/machine.h>
21#include <linux/platform_data/mailbox-omap.h>
22
23#include <asm/mach-types.h>
24#include <asm/mach/map.h>
25
26#include <linux/omap-dma.h>
27
28#include "iomap.h"
29#include "omap_hwmod.h"
30#include "omap_device.h"
31
32#include "soc.h"
33#include "common.h"
34#include "mux.h"
35#include "control.h"
36#include "display.h"
37
38#define L3_MODULES_MAX_LEN 12
39#define L3_MODULES 3
40
41static int __init omap3_l3_init(void)
42{
43	struct omap_hwmod *oh;
44	struct platform_device *pdev;
45	char oh_name[L3_MODULES_MAX_LEN];
46
47	/*
48	 * To avoid code running on other OMAPs in
49	 * multi-omap builds
50	 */
51	if (!(cpu_is_omap34xx()) || of_have_populated_dt())
52		return -ENODEV;
53
54	snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");
55
56	oh = omap_hwmod_lookup(oh_name);
57
58	if (!oh)
59		pr_err("could not look up %s\n", oh_name);
60
61	pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0);
62
63	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
64
65	return PTR_ERR_OR_ZERO(pdev);
66}
67omap_postcore_initcall(omap3_l3_init);
68
69#if defined(CONFIG_OMAP2PLUS_MBOX) || defined(CONFIG_OMAP2PLUS_MBOX_MODULE)
70static inline void __init omap_init_mbox(void)
71{
72	struct omap_hwmod *oh;
73	struct platform_device *pdev;
74	struct omap_mbox_pdata *pdata;
75
76	oh = omap_hwmod_lookup("mailbox");
77	if (!oh) {
78		pr_err("%s: unable to find hwmod\n", __func__);
79		return;
80	}
81	if (!oh->dev_attr) {
82		pr_err("%s: hwmod doesn't have valid attrs\n", __func__);
83		return;
84	}
85
86	pdata = (struct omap_mbox_pdata *)oh->dev_attr;
87	pdev = omap_device_build("omap-mailbox", -1, oh, pdata, sizeof(*pdata));
88	WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
89						__func__, PTR_ERR(pdev));
90}
91#else
92static inline void omap_init_mbox(void) { }
93#endif /* CONFIG_OMAP2PLUS_MBOX */
94
95static inline void omap_init_sti(void) {}
96
97#if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
98
99static struct platform_device omap_pcm = {
100	.name	= "omap-pcm-audio",
101	.id	= -1,
102};
103
104static void omap_init_audio(void)
105{
106	platform_device_register(&omap_pcm);
107}
108
109#else
110static inline void omap_init_audio(void) {}
111#endif
112
113#if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
114
115#include <linux/platform_data/spi-omap2-mcspi.h>
116
117static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
118{
119	struct platform_device *pdev;
120	char *name = "omap2_mcspi";
121	struct omap2_mcspi_platform_config *pdata;
122	static int spi_num;
123	struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
124
125	pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
126	if (!pdata) {
127		pr_err("Memory allocation for McSPI device failed\n");
128		return -ENOMEM;
129	}
130
131	pdata->num_cs = mcspi_attrib->num_chipselect;
132	switch (oh->class->rev) {
133	case OMAP2_MCSPI_REV:
134	case OMAP3_MCSPI_REV:
135			pdata->regs_offset = 0;
136			break;
137	case OMAP4_MCSPI_REV:
138			pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
139			break;
140	default:
141			pr_err("Invalid McSPI Revision value\n");
142			kfree(pdata);
143			return -EINVAL;
144	}
145
146	spi_num++;
147	pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata));
148	WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
149				name, oh->name);
150	kfree(pdata);
151	return 0;
152}
153
154static void omap_init_mcspi(void)
155{
156	omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
157}
158
159#else
160static inline void omap_init_mcspi(void) {}
161#endif
162
163/**
164 * omap_init_rng - bind the RNG hwmod to the RNG omap_device
165 *
166 * Bind the RNG hwmod to the RNG omap_device.  No return value.
167 */
168static void omap_init_rng(void)
169{
170	struct omap_hwmod *oh;
171	struct platform_device *pdev;
172
173	oh = omap_hwmod_lookup("rng");
174	if (!oh)
175		return;
176
177	pdev = omap_device_build("omap_rng", -1, oh, NULL, 0);
178	WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
179}
180
181static void __init omap_init_sham(void)
182{
183	struct omap_hwmod *oh;
184	struct platform_device *pdev;
185
186	oh = omap_hwmod_lookup("sham");
187	if (!oh)
188		return;
189
190	pdev = omap_device_build("omap-sham", -1, oh, NULL, 0);
191	WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n");
192}
193
194static void __init omap_init_aes(void)
195{
196	struct omap_hwmod *oh;
197	struct platform_device *pdev;
198
199	oh = omap_hwmod_lookup("aes");
200	if (!oh)
201		return;
202
203	pdev = omap_device_build("omap-aes", -1, oh, NULL, 0);
204	WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n");
205}
206
207/*-------------------------------------------------------------------------*/
208
209#if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
210	defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
211#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
212static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
213};
214#else
215static struct resource omap_vout_resource[2] = {
216};
217#endif
218
219static struct platform_device omap_vout_device = {
220	.name		= "omap_vout",
221	.num_resources	= ARRAY_SIZE(omap_vout_resource),
222	.resource 	= &omap_vout_resource[0],
223	.id		= -1,
224};
225
226int __init omap_init_vout(void)
227{
228	return platform_device_register(&omap_vout_device);
229}
230#else
231int __init omap_init_vout(void) { return 0; }
232#endif
233
234/*-------------------------------------------------------------------------*/
235
236static int __init omap2_init_devices(void)
237{
238	/* Enable dummy states for those platforms without pinctrl support */
239	if (!of_have_populated_dt())
240		pinctrl_provide_dummies();
241
242	/*
243	 * please keep these calls, and their implementations above,
244	 * in alphabetical order so they're easier to sort through.
245	 */
246	omap_init_audio();
247	/* If dtb is there, the devices will be created dynamically */
248	if (!of_have_populated_dt()) {
249		omap_init_mbox();
250		omap_init_mcspi();
251		omap_init_sham();
252		omap_init_aes();
253		omap_init_rng();
254	}
255	omap_init_sti();
256
257	return 0;
258}
259omap_arch_initcall(omap2_init_devices);
260
261static int __init omap_gpmc_init(void)
262{
263	struct omap_hwmod *oh;
264	struct platform_device *pdev;
265	char *oh_name = "gpmc";
266
267	/*
268	 * if the board boots up with a populated DT, do not
269	 * manually add the device from this initcall
270	 */
271	if (of_have_populated_dt())
272		return -ENODEV;
273
274	oh = omap_hwmod_lookup(oh_name);
275	if (!oh) {
276		pr_err("Could not look up %s\n", oh_name);
277		return -ENODEV;
278	}
279
280	pdev = omap_device_build("omap-gpmc", -1, oh, NULL, 0);
281	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
282
283	return PTR_ERR_OR_ZERO(pdev);
284}
285omap_postcore_initcall(omap_gpmc_init);
286