Commit | Line | Data |
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1a8bfa1e TL |
1 | /* |
2 | * linux/arch/arm/plat-omap/devices.c | |
3 | * | |
4 | * Common platform device setup/initialization for OMAP1 and OMAP2 | |
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 | ||
1a8bfa1e TL |
12 | #include <linux/module.h> |
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/platform_device.h> | |
fced80c7 | 16 | #include <linux/io.h> |
5a0e3ad6 | 17 | #include <linux/slab.h> |
90173882 | 18 | #include <linux/memblock.h> |
1a8bfa1e | 19 | |
a09e64fb | 20 | #include <mach/hardware.h> |
1a8bfa1e TL |
21 | #include <asm/mach-types.h> |
22 | #include <asm/mach/map.h> | |
23 | ||
ce491cf8 | 24 | #include <plat/tc.h> |
ce491cf8 TL |
25 | #include <plat/board.h> |
26 | #include <plat/mmc.h> | |
a09e64fb | 27 | #include <mach/gpio.h> |
ce491cf8 TL |
28 | #include <plat/menelaus.h> |
29 | #include <plat/mcbsp.h> | |
d6a2d9b8 | 30 | #include <plat/omap44xx.h> |
1a8bfa1e | 31 | |
9b6553cd | 32 | /*-------------------------------------------------------------------------*/ |
9b6553cd | 33 | |
bc5d0c89 EV |
34 | #if defined(CONFIG_OMAP_MCBSP) || defined(CONFIG_OMAP_MCBSP_MODULE) |
35 | ||
36 | static struct platform_device **omap_mcbsp_devices; | |
37 | ||
38 | void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config, | |
39 | int size) | |
40 | { | |
41 | int i; | |
42 | ||
bc5d0c89 EV |
43 | omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *), |
44 | GFP_KERNEL); | |
45 | if (!omap_mcbsp_devices) { | |
46 | printk(KERN_ERR "Could not register McBSP devices\n"); | |
47 | return; | |
48 | } | |
49 | ||
50 | for (i = 0; i < size; i++) { | |
51 | struct platform_device *new_mcbsp; | |
52 | int ret; | |
53 | ||
54 | new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1); | |
55 | if (!new_mcbsp) | |
56 | continue; | |
57 | new_mcbsp->dev.platform_data = &config[i]; | |
58 | ret = platform_device_add(new_mcbsp); | |
59 | if (ret) { | |
60 | platform_device_put(new_mcbsp); | |
61 | continue; | |
62 | } | |
63 | omap_mcbsp_devices[i] = new_mcbsp; | |
64 | } | |
65 | } | |
66 | ||
67 | #else | |
68 | void omap_mcbsp_register_board_cfg(struct omap_mcbsp_platform_data *config, | |
69 | int size) | |
70 | { } | |
71 | #endif | |
72 | ||
1a8bfa1e TL |
73 | /*-------------------------------------------------------------------------*/ |
74 | ||
d6a2d9b8 JEC |
75 | #if defined(CONFIG_SND_OMAP_SOC_MCPDM) || \ |
76 | defined(CONFIG_SND_OMAP_SOC_MCPDM_MODULE) | |
77 | ||
78 | static struct resource mcpdm_resources[] = { | |
79 | { | |
80 | .name = "mcpdm_mem", | |
81 | .start = OMAP44XX_MCPDM_BASE, | |
82 | .end = OMAP44XX_MCPDM_BASE + SZ_4K, | |
83 | .flags = IORESOURCE_MEM, | |
84 | }, | |
85 | { | |
86 | .name = "mcpdm_irq", | |
5772ca7d SS |
87 | .start = OMAP44XX_IRQ_MCPDM, |
88 | .end = OMAP44XX_IRQ_MCPDM, | |
d6a2d9b8 JEC |
89 | .flags = IORESOURCE_IRQ, |
90 | }, | |
91 | }; | |
92 | ||
93 | static struct platform_device omap_mcpdm_device = { | |
94 | .name = "omap-mcpdm", | |
95 | .id = -1, | |
96 | .num_resources = ARRAY_SIZE(mcpdm_resources), | |
97 | .resource = mcpdm_resources, | |
98 | }; | |
99 | ||
100 | static void omap_init_mcpdm(void) | |
101 | { | |
102 | (void) platform_device_register(&omap_mcpdm_device); | |
103 | } | |
104 | #else | |
105 | static inline void omap_init_mcpdm(void) {} | |
106 | #endif | |
107 | ||
108 | /*-------------------------------------------------------------------------*/ | |
109 | ||
d8874665 | 110 | #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \ |
7736c09c | 111 | defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) |
1a8bfa1e | 112 | |
d8874665 | 113 | #define OMAP_MMC_NR_RES 2 |
7736c09c | 114 | |
d8874665 TL |
115 | /* |
116 | * Register MMC devices. Called from mach-omap1 and mach-omap2 device init. | |
117 | */ | |
0dffb5c5 TL |
118 | int __init omap_mmc_add(const char *name, int id, unsigned long base, |
119 | unsigned long size, unsigned int irq, | |
120 | struct omap_mmc_platform_data *data) | |
7736c09c | 121 | { |
d8874665 TL |
122 | struct platform_device *pdev; |
123 | struct resource res[OMAP_MMC_NR_RES]; | |
124 | int ret; | |
125 | ||
0dffb5c5 | 126 | pdev = platform_device_alloc(name, id); |
d8874665 TL |
127 | if (!pdev) |
128 | return -ENOMEM; | |
129 | ||
130 | memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource)); | |
131 | res[0].start = base; | |
132 | res[0].end = base + size - 1; | |
133 | res[0].flags = IORESOURCE_MEM; | |
134 | res[1].start = res[1].end = irq; | |
135 | res[1].flags = IORESOURCE_IRQ; | |
136 | ||
137 | ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res)); | |
138 | if (ret == 0) | |
139 | ret = platform_device_add_data(pdev, data, sizeof(*data)); | |
140 | if (ret) | |
141 | goto fail; | |
142 | ||
143 | ret = platform_device_add(pdev); | |
144 | if (ret) | |
145 | goto fail; | |
01971f65 DB |
146 | |
147 | /* return device handle to board setup code */ | |
148 | data->dev = &pdev->dev; | |
d8874665 | 149 | return 0; |
7736c09c | 150 | |
d8874665 TL |
151 | fail: |
152 | platform_device_put(pdev); | |
153 | return ret; | |
7736c09c RK |
154 | } |
155 | ||
1a8bfa1e TL |
156 | #endif |
157 | ||
9b6553cd TL |
158 | /*-------------------------------------------------------------------------*/ |
159 | ||
3bfe8971 LM |
160 | #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE) |
161 | ||
088ef950 | 162 | #ifdef CONFIG_ARCH_OMAP2 |
3bfe8971 LM |
163 | #define OMAP_RNG_BASE 0x480A0000 |
164 | #else | |
165 | #define OMAP_RNG_BASE 0xfffe5000 | |
166 | #endif | |
167 | ||
168 | static struct resource rng_resources[] = { | |
169 | { | |
170 | .start = OMAP_RNG_BASE, | |
171 | .end = OMAP_RNG_BASE + 0x4f, | |
172 | .flags = IORESOURCE_MEM, | |
173 | }, | |
174 | }; | |
175 | ||
176 | static struct platform_device omap_rng_device = { | |
177 | .name = "omap_rng", | |
178 | .id = -1, | |
179 | .num_resources = ARRAY_SIZE(rng_resources), | |
180 | .resource = rng_resources, | |
181 | }; | |
182 | ||
183 | static void omap_init_rng(void) | |
184 | { | |
185 | (void) platform_device_register(&omap_rng_device); | |
186 | } | |
187 | #else | |
188 | static inline void omap_init_rng(void) {} | |
189 | #endif | |
190 | ||
191 | /*-------------------------------------------------------------------------*/ | |
192 | ||
9b6553cd TL |
193 | /* Numbering for the SPI-capable controllers when used for SPI: |
194 | * spi = 1 | |
195 | * uwire = 2 | |
196 | * mmc1..2 = 3..4 | |
197 | * mcbsp1..3 = 5..7 | |
198 | */ | |
199 | ||
200 | #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE) | |
201 | ||
202 | #define OMAP_UWIRE_BASE 0xfffb3000 | |
203 | ||
204 | static struct resource uwire_resources[] = { | |
205 | { | |
206 | .start = OMAP_UWIRE_BASE, | |
207 | .end = OMAP_UWIRE_BASE + 0x20, | |
208 | .flags = IORESOURCE_MEM, | |
209 | }, | |
210 | }; | |
211 | ||
212 | static struct platform_device omap_uwire_device = { | |
213 | .name = "omap_uwire", | |
214 | .id = -1, | |
9b6553cd TL |
215 | .num_resources = ARRAY_SIZE(uwire_resources), |
216 | .resource = uwire_resources, | |
217 | }; | |
218 | ||
219 | static void omap_init_uwire(void) | |
220 | { | |
221 | /* FIXME define and use a boot tag; not all boards will be hooking | |
222 | * up devices to the microwire controller, and multi-board configs | |
223 | * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway... | |
224 | */ | |
225 | ||
226 | /* board-specific code must configure chipselects (only a few | |
227 | * are normally used) and SCLK/SDI/SDO (each has two choices). | |
228 | */ | |
229 | (void) platform_device_register(&omap_uwire_device); | |
230 | } | |
231 | #else | |
232 | static inline void omap_init_uwire(void) {} | |
233 | #endif | |
234 | ||
90173882 FC |
235 | #if defined(CONFIG_TIDSPBRIDGE) || defined(CONFIG_TIDSPBRIDGE_MODULE) |
236 | ||
237 | static phys_addr_t omap_dsp_phys_mempool_base; | |
238 | ||
239 | void __init omap_dsp_reserve_sdram_memblock(void) | |
240 | { | |
241 | phys_addr_t size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE; | |
242 | phys_addr_t paddr; | |
243 | ||
244 | if (!size) | |
245 | return; | |
246 | ||
89346f95 | 247 | paddr = memblock_alloc(size, SZ_1M); |
90173882 FC |
248 | if (!paddr) { |
249 | pr_err("%s: failed to reserve %x bytes\n", | |
250 | __func__, size); | |
251 | return; | |
252 | } | |
89346f95 FC |
253 | memblock_free(paddr, size); |
254 | memblock_remove(paddr, size); | |
90173882 FC |
255 | |
256 | omap_dsp_phys_mempool_base = paddr; | |
257 | } | |
258 | ||
259 | phys_addr_t omap_dsp_get_mempool_base(void) | |
260 | { | |
261 | return omap_dsp_phys_mempool_base; | |
262 | } | |
263 | EXPORT_SYMBOL(omap_dsp_get_mempool_base); | |
264 | #endif | |
265 | ||
1a8bfa1e TL |
266 | /* |
267 | * This gets called after board-specific INIT_MACHINE, and initializes most | |
268 | * on-chip peripherals accessible on this board (except for few like USB): | |
269 | * | |
270 | * (a) Does any "standard config" pin muxing needed. Board-specific | |
271 | * code will have muxed GPIO pins and done "nonstandard" setup; | |
272 | * that code could live in the boot loader. | |
273 | * (b) Populating board-specific platform_data with the data drivers | |
274 | * rely on to handle wiring variations. | |
275 | * (c) Creating platform devices as meaningful on this board and | |
276 | * with this kernel configuration. | |
277 | * | |
278 | * Claiming GPIOs, and setting their direction and initial values, is the | |
279 | * responsibility of the device drivers. So is responding to probe(). | |
280 | * | |
281 | * Board-specific knowlege like creating devices or pin setup is to be | |
282 | * kept out of drivers as much as possible. In particular, pin setup | |
283 | * may be handled by the boot loader, and drivers should expect it will | |
284 | * normally have been done by the time they're probed. | |
285 | */ | |
286 | static int __init omap_init_devices(void) | |
287 | { | |
288 | /* please keep these calls, and their implementations above, | |
289 | * in alphabetical order so they're easier to sort through. | |
290 | */ | |
3bfe8971 | 291 | omap_init_rng(); |
d6a2d9b8 | 292 | omap_init_mcpdm(); |
9b6553cd | 293 | omap_init_uwire(); |
1a8bfa1e TL |
294 | return 0; |
295 | } | |
296 | arch_initcall(omap_init_devices); |