2 * linux/arch/arm/plat-omap/devices.c
4 * Common platform device setup/initialization for OMAP1 and OMAP2
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.
12 #include <linux/module.h>
13 #include <linux/kernel.h>
14 #include <linux/init.h>
15 #include <linux/platform_device.h>
17 #include <linux/slab.h>
18 #include <linux/memblock.h>
20 #include <mach/hardware.h>
21 #include <asm/mach-types.h>
22 #include <asm/mach/map.h>
25 #include <plat/board.h>
27 #include <mach/gpio.h>
28 #include <plat/menelaus.h>
29 #include <plat/mcbsp.h>
30 #include <plat/omap44xx.h>
32 /*-------------------------------------------------------------------------*/
34 #if defined(CONFIG_OMAP_MCBSP) || defined(CONFIG_OMAP_MCBSP_MODULE)
36 static struct platform_device **omap_mcbsp_devices;
38 void omap_mcbsp_register_board_cfg(struct resource *res, int res_count,
39 struct omap_mcbsp_platform_data *config, int size)
43 omap_mcbsp_devices = kzalloc(size * sizeof(struct platform_device *),
45 if (!omap_mcbsp_devices) {
46 printk(KERN_ERR "Could not register McBSP devices\n");
50 for (i = 0; i < size; i++) {
51 struct platform_device *new_mcbsp;
54 new_mcbsp = platform_device_alloc("omap-mcbsp", i + 1);
57 platform_device_add_resources(new_mcbsp, &res[i * res_count],
59 new_mcbsp->dev.platform_data = &config[i];
60 ret = platform_device_add(new_mcbsp);
62 platform_device_put(new_mcbsp);
65 omap_mcbsp_devices[i] = new_mcbsp;
70 void omap_mcbsp_register_board_cfg(struct resource *res, int res_count,
71 struct omap_mcbsp_platform_data *config, int size)
75 /*-------------------------------------------------------------------------*/
77 #if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \
78 defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE)
80 #define OMAP_MMC_NR_RES 2
83 * Register MMC devices. Called from mach-omap1 and mach-omap2 device init.
85 int __init omap_mmc_add(const char *name, int id, unsigned long base,
86 unsigned long size, unsigned int irq,
87 struct omap_mmc_platform_data *data)
89 struct platform_device *pdev;
90 struct resource res[OMAP_MMC_NR_RES];
93 pdev = platform_device_alloc(name, id);
97 memset(res, 0, OMAP_MMC_NR_RES * sizeof(struct resource));
99 res[0].end = base + size - 1;
100 res[0].flags = IORESOURCE_MEM;
101 res[1].start = res[1].end = irq;
102 res[1].flags = IORESOURCE_IRQ;
104 ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
106 ret = platform_device_add_data(pdev, data, sizeof(*data));
110 ret = platform_device_add(pdev);
114 /* return device handle to board setup code */
115 data->dev = &pdev->dev;
119 platform_device_put(pdev);
125 /*-------------------------------------------------------------------------*/
127 #if defined(CONFIG_HW_RANDOM_OMAP) || defined(CONFIG_HW_RANDOM_OMAP_MODULE)
129 #ifdef CONFIG_ARCH_OMAP2
130 #define OMAP_RNG_BASE 0x480A0000
132 #define OMAP_RNG_BASE 0xfffe5000
135 static struct resource rng_resources[] = {
137 .start = OMAP_RNG_BASE,
138 .end = OMAP_RNG_BASE + 0x4f,
139 .flags = IORESOURCE_MEM,
143 static struct platform_device omap_rng_device = {
146 .num_resources = ARRAY_SIZE(rng_resources),
147 .resource = rng_resources,
150 static void omap_init_rng(void)
152 (void) platform_device_register(&omap_rng_device);
155 static inline void omap_init_rng(void) {}
158 /*-------------------------------------------------------------------------*/
160 /* Numbering for the SPI-capable controllers when used for SPI:
167 #if defined(CONFIG_SPI_OMAP_UWIRE) || defined(CONFIG_SPI_OMAP_UWIRE_MODULE)
169 #define OMAP_UWIRE_BASE 0xfffb3000
171 static struct resource uwire_resources[] = {
173 .start = OMAP_UWIRE_BASE,
174 .end = OMAP_UWIRE_BASE + 0x20,
175 .flags = IORESOURCE_MEM,
179 static struct platform_device omap_uwire_device = {
180 .name = "omap_uwire",
182 .num_resources = ARRAY_SIZE(uwire_resources),
183 .resource = uwire_resources,
186 static void omap_init_uwire(void)
188 /* FIXME define and use a boot tag; not all boards will be hooking
189 * up devices to the microwire controller, and multi-board configs
190 * mean that CONFIG_SPI_OMAP_UWIRE may be configured anyway...
193 /* board-specific code must configure chipselects (only a few
194 * are normally used) and SCLK/SDI/SDO (each has two choices).
196 (void) platform_device_register(&omap_uwire_device);
199 static inline void omap_init_uwire(void) {}
202 #if defined(CONFIG_TIDSPBRIDGE) || defined(CONFIG_TIDSPBRIDGE_MODULE)
204 static phys_addr_t omap_dsp_phys_mempool_base;
206 void __init omap_dsp_reserve_sdram_memblock(void)
208 phys_addr_t size = CONFIG_TIDSPBRIDGE_MEMPOOL_SIZE;
214 paddr = memblock_alloc(size, SZ_1M);
216 pr_err("%s: failed to reserve %x bytes\n",
220 memblock_free(paddr, size);
221 memblock_remove(paddr, size);
223 omap_dsp_phys_mempool_base = paddr;
226 phys_addr_t omap_dsp_get_mempool_base(void)
228 return omap_dsp_phys_mempool_base;
230 EXPORT_SYMBOL(omap_dsp_get_mempool_base);
234 * This gets called after board-specific INIT_MACHINE, and initializes most
235 * on-chip peripherals accessible on this board (except for few like USB):
237 * (a) Does any "standard config" pin muxing needed. Board-specific
238 * code will have muxed GPIO pins and done "nonstandard" setup;
239 * that code could live in the boot loader.
240 * (b) Populating board-specific platform_data with the data drivers
241 * rely on to handle wiring variations.
242 * (c) Creating platform devices as meaningful on this board and
243 * with this kernel configuration.
245 * Claiming GPIOs, and setting their direction and initial values, is the
246 * responsibility of the device drivers. So is responding to probe().
248 * Board-specific knowledge like creating devices or pin setup is to be
249 * kept out of drivers as much as possible. In particular, pin setup
250 * may be handled by the boot loader, and drivers should expect it will
251 * normally have been done by the time they're probed.
253 static int __init omap_init_devices(void)
255 /* please keep these calls, and their implementations above,
256 * in alphabetical order so they're easier to sort through.
262 arch_initcall(omap_init_devices);