Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec...
[deliverable/linux.git] / arch / arm / mach-omap2 / devices.c
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_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
91 static struct platform_device omap3isp_device = {
92 .name = "omap3isp",
93 .id = -1,
94 .num_resources = ARRAY_SIZE(omap3isp_resources),
95 .resource = omap3isp_resources,
96 };
97
98 static struct omap_iommu_arch_data omap3_isp_iommu = {
99 .name = "mmu_isp",
100 };
101
102 int 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
115 int 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)
123 static 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
145 static inline void omap_init_mbox(void) { }
146 #endif /* CONFIG_OMAP2PLUS_MBOX */
147
148 static inline void omap_init_sti(void) {}
149
150 #if defined(CONFIG_SND_SOC) || defined(CONFIG_SND_SOC_MODULE)
151
152 static struct platform_device omap_pcm = {
153 .name = "omap-pcm-audio",
154 .id = -1,
155 };
156
157 static void omap_init_audio(void)
158 {
159 platform_device_register(&omap_pcm);
160 }
161
162 #else
163 static 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
170 static 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
207 static void omap_init_mcspi(void)
208 {
209 omap_hwmod_for_each_by_class("mcspi", omap_mcspi_init, NULL);
210 }
211
212 #else
213 static 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 */
221 static 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
234 static 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
247 static 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)
265 static struct resource omap_vout_resource[3 - CONFIG_FB_OMAP2_NUM_FBS] = {
266 };
267 #else
268 static struct resource omap_vout_resource[2] = {
269 };
270 #endif
271
272 static 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
279 int __init omap_init_vout(void)
280 {
281 return platform_device_register(&omap_vout_device);
282 }
283 #else
284 int __init omap_init_vout(void) { return 0; }
285 #endif
286
287 /*-------------------------------------------------------------------------*/
288
289 static 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 }
312 omap_arch_initcall(omap2_init_devices);
313
314 static 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 }
338 omap_postcore_initcall(omap_gpmc_init);
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