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 "devices.h"
37#include "display.h"
38
39#define L3_MODULES_MAX_LEN 12
40#define L3_MODULES 3
41
42static int __init omap3_l3_init(void)
43{
44	struct omap_hwmod *oh;
45	struct platform_device *pdev;
46	char oh_name[L3_MODULES_MAX_LEN];
47
48	/*
49	 * To avoid code running on other OMAPs in
50	 * multi-omap builds
51	 */
52	if (!(cpu_is_omap34xx()) || of_have_populated_dt())
53		return -ENODEV;
54
55	snprintf(oh_name, L3_MODULES_MAX_LEN, "l3_main");
56
57	oh = omap_hwmod_lookup(oh_name);
58
59	if (!oh)
60		pr_err("could not look up %s\n", oh_name);
61
62	pdev = omap_device_build("omap_l3_smx", 0, oh, NULL, 0);
63
64	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
65
66	return PTR_RET(pdev);
67}
68omap_postcore_initcall(omap3_l3_init);
69
70#if defined(CONFIG_IOMMU_API)
71
72#include <linux/platform_data/iommu-omap.h>
73
74static struct resource omap3isp_resources[] = {
75	{
76		.start		= OMAP3430_ISP_BASE,
77		.end		= OMAP3430_ISP_BASE + 0x12fc,
78		.flags		= IORESOURCE_MEM,
79	},
80	{
81		.start		= OMAP3430_ISP_BASE2,
82		.end		= OMAP3430_ISP_BASE2 + 0x0600,
83		.flags		= IORESOURCE_MEM,
84	},
85	{
86		.start		= 24 + OMAP_INTC_START,
87		.flags		= IORESOURCE_IRQ,
88	}
89};
90
91static struct platform_device omap3isp_device = {
92	.name		= "omap3isp",
93	.id		= -1,
94	.num_resources	= ARRAY_SIZE(omap3isp_resources),
95	.resource	= omap3isp_resources,
96};
97
98static struct omap_iommu_arch_data omap3_isp_iommu = {
99	.name = "mmu_isp",
100};
101
102int omap3_init_camera(struct isp_platform_data *pdata)
103{
104	if (of_have_populated_dt())
105		omap3_isp_iommu.name = "480bd400.mmu";
106
107	omap3isp_device.dev.platform_data = pdata;
108	omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu;
109
110	return platform_device_register(&omap3isp_device);
111}
112
113#else /* !CONFIG_IOMMU_API */
114
115int omap3_init_camera(struct isp_platform_data *pdata)
116{
117	return 0;
118}
119
120#endif
121
122#if defined(CONFIG_OMAP2PLUS_MBOX) || defined(CONFIG_OMAP2PLUS_MBOX_MODULE)
123static inline void __init omap_init_mbox(void)
124{
125	struct omap_hwmod *oh;
126	struct platform_device *pdev;
127	struct omap_mbox_pdata *pdata;
128
129	oh = omap_hwmod_lookup("mailbox");
130	if (!oh) {
131		pr_err("%s: unable to find hwmod\n", __func__);
132		return;
133	}
134	if (!oh->dev_attr) {
135		pr_err("%s: hwmod doesn't have valid attrs\n", __func__);
136		return;
137	}
138
139	pdata = (struct omap_mbox_pdata *)oh->dev_attr;
140	pdev = omap_device_build("omap-mailbox", -1, oh, pdata, sizeof(*pdata));
141	WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
142						__func__, PTR_ERR(pdev));
143}
144#else
145static inline void omap_init_mbox(void) { }
146#endif /* CONFIG_OMAP2PLUS_MBOX */
147
148static inline void omap_init_sti(void) {}
149
150#if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
151
152static struct platform_device omap_pcm = {
153	.name	= "omap-pcm-audio",
154	.id	= -1,
155};
156
157static void omap_init_audio(void)
158{
159	platform_device_register(&omap_pcm);
160}
161
162#else
163static inline void omap_init_audio(void) {}
164#endif
165
166#if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
167
168#include <linux/platform_data/spi-omap2-mcspi.h>
169
170static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
171{
172	struct platform_device *pdev;
173	char *name = "omap2_mcspi";
174	struct omap2_mcspi_platform_config *pdata;
175	static int spi_num;
176	struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
177
178	pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
179	if (!pdata) {
180		pr_err("Memory allocation for McSPI device failed\n");
181		return -ENOMEM;
182	}
183
184	pdata->num_cs = mcspi_attrib->num_chipselect;
185	switch (oh->class->rev) {
186	case OMAP2_MCSPI_REV:
187	case OMAP3_MCSPI_REV:
188			pdata->regs_offset = 0;
189			break;
190	case OMAP4_MCSPI_REV:
191			pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
192			break;
193	default:
194			pr_err("Invalid McSPI Revision value\n");
195			kfree(pdata);
196			return -EINVAL;
197	}
198
199	spi_num++;
200	pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata));
201	WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
202				name, oh->name);
203	kfree(pdata);
204	return 0;
205}
206
207static void omap_init_mcspi(void)
208{
209	omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
210}
211
212#else
213static inline void omap_init_mcspi(void) {}
214#endif
215
216/**
217 * omap_init_rng - bind the RNG hwmod to the RNG omap_device
218 *
219 * Bind the RNG hwmod to the RNG omap_device.  No return value.
220 */
221static void omap_init_rng(void)
222{
223	struct omap_hwmod *oh;
224	struct platform_device *pdev;
225
226	oh = omap_hwmod_lookup("rng");
227	if (!oh)
228		return;
229
230	pdev = omap_device_build("omap_rng", -1, oh, NULL, 0);
231	WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
232}
233
234static void __init omap_init_sham(void)
235{
236	struct omap_hwmod *oh;
237	struct platform_device *pdev;
238
239	oh = omap_hwmod_lookup("sham");
240	if (!oh)
241		return;
242
243	pdev = omap_device_build("omap-sham", -1, oh, NULL, 0);
244	WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n");
245}
246
247static void __init omap_init_aes(void)
248{
249	struct omap_hwmod *oh;
250	struct platform_device *pdev;
251
252	oh = omap_hwmod_lookup("aes");
253	if (!oh)
254		return;
255
256	pdev = omap_device_build("omap-aes", -1, oh, NULL, 0);
257	WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n");
258}
259
260/*-------------------------------------------------------------------------*/
261
262#if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
263	defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
264#if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
265static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
266};
267#else
268static struct resource omap_vout_resource[2] = {
269};
270#endif
271
272static struct platform_device omap_vout_device = {
273	.name		= "omap_vout",
274	.num_resources	= ARRAY_SIZE(omap_vout_resource),
275	.resource 	= &omap_vout_resource[0],
276	.id		= -1,
277};
278
279int __init omap_init_vout(void)
280{
281	return platform_device_register(&omap_vout_device);
282}
283#else
284int __init omap_init_vout(void) { return 0; }
285#endif
286
287/*-------------------------------------------------------------------------*/
288
289static int __init omap2_init_devices(void)
290{
291	/* Enable dummy states for those platforms without pinctrl support */
292	if (!of_have_populated_dt())
293		pinctrl_provide_dummies();
294
295	/*
296	 * please keep these calls, and their implementations above,
297	 * in alphabetical order so they're easier to sort through.
298	 */
299	omap_init_audio();
300	/* If dtb is there, the devices will be created dynamically */
301	if (!of_have_populated_dt()) {
302		omap_init_mbox();
303		omap_init_mcspi();
304		omap_init_sham();
305		omap_init_aes();
306		omap_init_rng();
307	}
308	omap_init_sti();
309
310	return 0;
311}
312omap_arch_initcall(omap2_init_devices);
313
314static int __init omap_gpmc_init(void)
315{
316	struct omap_hwmod *oh;
317	struct platform_device *pdev;
318	char *oh_name = "gpmc";
319
320	/*
321	 * if the board boots up with a populated DT, do not
322	 * manually add the device from this initcall
323	 */
324	if (of_have_populated_dt())
325		return -ENODEV;
326
327	oh = omap_hwmod_lookup(oh_name);
328	if (!oh) {
329		pr_err("Could not look up %s\n", oh_name);
330		return -ENODEV;
331	}
332
333	pdev = omap_device_build("omap-gpmc", -1, oh, NULL, 0);
334	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
335
336	return PTR_RET(pdev);
337}
338omap_postcore_initcall(omap_gpmc_init);
339