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