xref: /openbmc/linux/arch/arm/mach-omap2/devices.c (revision c819e2cf)
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 
42 static 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 }
68 omap_postcore_initcall(omap3_l3_init);
69 
70 #if defined(CONFIG_IOMMU_API)
71 
72 #include <linux/platform_data/iommu-omap.h>
73 
74 static struct resource omap3isp_resources[] = {
75 	{
76 		.start		= OMAP3430_ISP_BASE,
77 		.end		= OMAP3430_ISP_END,
78 		.flags		= IORESOURCE_MEM,
79 	},
80 	{
81 		.start		= OMAP3430_ISP_CCP2_BASE,
82 		.end		= OMAP3430_ISP_CCP2_END,
83 		.flags		= IORESOURCE_MEM,
84 	},
85 	{
86 		.start		= OMAP3430_ISP_CCDC_BASE,
87 		.end		= OMAP3430_ISP_CCDC_END,
88 		.flags		= IORESOURCE_MEM,
89 	},
90 	{
91 		.start		= OMAP3430_ISP_HIST_BASE,
92 		.end		= OMAP3430_ISP_HIST_END,
93 		.flags		= IORESOURCE_MEM,
94 	},
95 	{
96 		.start		= OMAP3430_ISP_H3A_BASE,
97 		.end		= OMAP3430_ISP_H3A_END,
98 		.flags		= IORESOURCE_MEM,
99 	},
100 	{
101 		.start		= OMAP3430_ISP_PREV_BASE,
102 		.end		= OMAP3430_ISP_PREV_END,
103 		.flags		= IORESOURCE_MEM,
104 	},
105 	{
106 		.start		= OMAP3430_ISP_RESZ_BASE,
107 		.end		= OMAP3430_ISP_RESZ_END,
108 		.flags		= IORESOURCE_MEM,
109 	},
110 	{
111 		.start		= OMAP3430_ISP_SBL_BASE,
112 		.end		= OMAP3430_ISP_SBL_END,
113 		.flags		= IORESOURCE_MEM,
114 	},
115 	{
116 		.start		= OMAP3430_ISP_CSI2A_REGS1_BASE,
117 		.end		= OMAP3430_ISP_CSI2A_REGS1_END,
118 		.flags		= IORESOURCE_MEM,
119 	},
120 	{
121 		.start		= OMAP3430_ISP_CSIPHY2_BASE,
122 		.end		= OMAP3430_ISP_CSIPHY2_END,
123 		.flags		= IORESOURCE_MEM,
124 	},
125 	{
126 		.start		= OMAP3630_ISP_CSI2A_REGS2_BASE,
127 		.end		= OMAP3630_ISP_CSI2A_REGS2_END,
128 		.flags		= IORESOURCE_MEM,
129 	},
130 	{
131 		.start		= OMAP3630_ISP_CSI2C_REGS1_BASE,
132 		.end		= OMAP3630_ISP_CSI2C_REGS1_END,
133 		.flags		= IORESOURCE_MEM,
134 	},
135 	{
136 		.start		= OMAP3630_ISP_CSIPHY1_BASE,
137 		.end		= OMAP3630_ISP_CSIPHY1_END,
138 		.flags		= IORESOURCE_MEM,
139 	},
140 	{
141 		.start		= OMAP3630_ISP_CSI2C_REGS2_BASE,
142 		.end		= OMAP3630_ISP_CSI2C_REGS2_END,
143 		.flags		= IORESOURCE_MEM,
144 	},
145 	{
146 		.start		= OMAP343X_CTRL_BASE + OMAP343X_CONTROL_CSIRXFE,
147 		.end		= OMAP343X_CTRL_BASE + OMAP343X_CONTROL_CSIRXFE + 3,
148 		.flags		= IORESOURCE_MEM,
149 	},
150 	{
151 		.start		= OMAP343X_CTRL_BASE + OMAP3630_CONTROL_CAMERA_PHY_CTRL,
152 		.end		= OMAP343X_CTRL_BASE + OMAP3630_CONTROL_CAMERA_PHY_CTRL + 3,
153 		.flags		= IORESOURCE_MEM,
154 	},
155 	{
156 		.start		= 24 + OMAP_INTC_START,
157 		.flags		= IORESOURCE_IRQ,
158 	}
159 };
160 
161 static struct platform_device omap3isp_device = {
162 	.name		= "omap3isp",
163 	.id		= -1,
164 	.num_resources	= ARRAY_SIZE(omap3isp_resources),
165 	.resource	= omap3isp_resources,
166 };
167 
168 static struct omap_iommu_arch_data omap3_isp_iommu = {
169 	.name = "mmu_isp",
170 };
171 
172 int omap3_init_camera(struct isp_platform_data *pdata)
173 {
174 	if (of_have_populated_dt())
175 		omap3_isp_iommu.name = "480bd400.mmu";
176 
177 	omap3isp_device.dev.platform_data = pdata;
178 	omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu;
179 
180 	return platform_device_register(&omap3isp_device);
181 }
182 
183 #else /* !CONFIG_IOMMU_API */
184 
185 int omap3_init_camera(struct isp_platform_data *pdata)
186 {
187 	return 0;
188 }
189 
190 #endif
191 
192 #if defined(CONFIG_OMAP2PLUS_MBOX) || defined(CONFIG_OMAP2PLUS_MBOX_MODULE)
193 static inline void __init omap_init_mbox(void)
194 {
195 	struct omap_hwmod *oh;
196 	struct platform_device *pdev;
197 	struct omap_mbox_pdata *pdata;
198 
199 	oh = omap_hwmod_lookup("mailbox");
200 	if (!oh) {
201 		pr_err("%s: unable to find hwmod\n", __func__);
202 		return;
203 	}
204 	if (!oh->dev_attr) {
205 		pr_err("%s: hwmod doesn't have valid attrs\n", __func__);
206 		return;
207 	}
208 
209 	pdata = (struct omap_mbox_pdata *)oh->dev_attr;
210 	pdev = omap_device_build("omap-mailbox", -1, oh, pdata, sizeof(*pdata));
211 	WARN(IS_ERR(pdev), "%s: could not build device, err %ld\n",
212 						__func__, PTR_ERR(pdev));
213 }
214 #else
215 static inline void omap_init_mbox(void) { }
216 #endif /* CONFIG_OMAP2PLUS_MBOX */
217 
218 static inline void omap_init_sti(void) {}
219 
220 #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
221 
222 static struct platform_device omap_pcm = {
223 	.name	= "omap-pcm-audio",
224 	.id	= -1,
225 };
226 
227 static void omap_init_audio(void)
228 {
229 	platform_device_register(&omap_pcm);
230 }
231 
232 #else
233 static inline void omap_init_audio(void) {}
234 #endif
235 
236 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
237 
238 #include <linux/platform_data/spi-omap2-mcspi.h>
239 
240 static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
241 {
242 	struct platform_device *pdev;
243 	char *name = "omap2_mcspi";
244 	struct omap2_mcspi_platform_config *pdata;
245 	static int spi_num;
246 	struct omap2_mcspi_dev_attr *mcspi_attrib = oh->dev_attr;
247 
248 	pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
249 	if (!pdata) {
250 		pr_err("Memory allocation for McSPI device failed\n");
251 		return -ENOMEM;
252 	}
253 
254 	pdata->num_cs = mcspi_attrib->num_chipselect;
255 	switch (oh->class->rev) {
256 	case OMAP2_MCSPI_REV:
257 	case OMAP3_MCSPI_REV:
258 			pdata->regs_offset = 0;
259 			break;
260 	case OMAP4_MCSPI_REV:
261 			pdata->regs_offset = OMAP4_MCSPI_REG_OFFSET;
262 			break;
263 	default:
264 			pr_err("Invalid McSPI Revision value\n");
265 			kfree(pdata);
266 			return -EINVAL;
267 	}
268 
269 	spi_num++;
270 	pdev = omap_device_build(name, spi_num, oh, pdata, sizeof(*pdata));
271 	WARN(IS_ERR(pdev), "Can't build omap_device for %s:%s\n",
272 				name, oh->name);
273 	kfree(pdata);
274 	return 0;
275 }
276 
277 static void omap_init_mcspi(void)
278 {
279 	omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
280 }
281 
282 #else
283 static inline void omap_init_mcspi(void) {}
284 #endif
285 
286 /**
287  * omap_init_rng - bind the RNG hwmod to the RNG omap_device
288  *
289  * Bind the RNG hwmod to the RNG omap_device.  No return value.
290  */
291 static void omap_init_rng(void)
292 {
293 	struct omap_hwmod *oh;
294 	struct platform_device *pdev;
295 
296 	oh = omap_hwmod_lookup("rng");
297 	if (!oh)
298 		return;
299 
300 	pdev = omap_device_build("omap_rng", -1, oh, NULL, 0);
301 	WARN(IS_ERR(pdev), "Can't build omap_device for omap_rng\n");
302 }
303 
304 static void __init omap_init_sham(void)
305 {
306 	struct omap_hwmod *oh;
307 	struct platform_device *pdev;
308 
309 	oh = omap_hwmod_lookup("sham");
310 	if (!oh)
311 		return;
312 
313 	pdev = omap_device_build("omap-sham", -1, oh, NULL, 0);
314 	WARN(IS_ERR(pdev), "Can't build omap_device for omap-sham\n");
315 }
316 
317 static void __init omap_init_aes(void)
318 {
319 	struct omap_hwmod *oh;
320 	struct platform_device *pdev;
321 
322 	oh = omap_hwmod_lookup("aes");
323 	if (!oh)
324 		return;
325 
326 	pdev = omap_device_build("omap-aes", -1, oh, NULL, 0);
327 	WARN(IS_ERR(pdev), "Can't build omap_device for omap-aes\n");
328 }
329 
330 /*-------------------------------------------------------------------------*/
331 
332 #if defined(CONFIG_VIDEO_OMAP2_VOUT) || \
333 	defined(CONFIG_VIDEO_OMAP2_VOUT_MODULE)
334 #if defined(CONFIG_FB_OMAP2) || defined(CONFIG_FB_OMAP2_MODULE)
335 static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
336 };
337 #else
338 static struct resource omap_vout_resource[2] = {
339 };
340 #endif
341 
342 static struct platform_device omap_vout_device = {
343 	.name		= "omap_vout",
344 	.num_resources	= ARRAY_SIZE(omap_vout_resource),
345 	.resource 	= &omap_vout_resource[0],
346 	.id		= -1,
347 };
348 
349 int __init omap_init_vout(void)
350 {
351 	return platform_device_register(&omap_vout_device);
352 }
353 #else
354 int __init omap_init_vout(void) { return 0; }
355 #endif
356 
357 /*-------------------------------------------------------------------------*/
358 
359 static int __init omap2_init_devices(void)
360 {
361 	/* Enable dummy states for those platforms without pinctrl support */
362 	if (!of_have_populated_dt())
363 		pinctrl_provide_dummies();
364 
365 	/*
366 	 * please keep these calls, and their implementations above,
367 	 * in alphabetical order so they're easier to sort through.
368 	 */
369 	omap_init_audio();
370 	/* If dtb is there, the devices will be created dynamically */
371 	if (!of_have_populated_dt()) {
372 		omap_init_mbox();
373 		omap_init_mcspi();
374 		omap_init_sham();
375 		omap_init_aes();
376 		omap_init_rng();
377 	}
378 	omap_init_sti();
379 
380 	return 0;
381 }
382 omap_arch_initcall(omap2_init_devices);
383 
384 static int __init omap_gpmc_init(void)
385 {
386 	struct omap_hwmod *oh;
387 	struct platform_device *pdev;
388 	char *oh_name = "gpmc";
389 
390 	/*
391 	 * if the board boots up with a populated DT, do not
392 	 * manually add the device from this initcall
393 	 */
394 	if (of_have_populated_dt())
395 		return -ENODEV;
396 
397 	oh = omap_hwmod_lookup(oh_name);
398 	if (!oh) {
399 		pr_err("Could not look up %s\n", oh_name);
400 		return -ENODEV;
401 	}
402 
403 	pdev = omap_device_build("omap-gpmc", -1, oh, NULL, 0);
404 	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
405 
406 	return PTR_RET(pdev);
407 }
408 omap_postcore_initcall(omap_gpmc_init);
409