2 * omap iommu: omap device registration
4 * Copyright (C) 2008-2009 Nokia Corporation
6 * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/module.h>
14 #include <linux/platform_device.h>
16 #include <plat/iommu.h>
17 #include <plat/irqs.h>
22 struct iommu_platform_data pdata;
23 struct resource res[2];
25 static struct iommu_device *devices;
26 static int num_iommu_devices;
28 #ifdef CONFIG_ARCH_OMAP3
29 static struct iommu_device omap3_devices[] = {
36 .clk_name = "cam_ick",
41 #if defined(CONFIG_OMAP_IOMMU_IVA2)
48 .clk_name = "iva2_ck",
49 .da_start = 0x11000000,
55 #define NR_OMAP3_IOMMU_DEVICES ARRAY_SIZE(omap3_devices)
56 static struct platform_device *omap3_iommu_pdev[NR_OMAP3_IOMMU_DEVICES];
58 #define omap3_devices NULL
59 #define NR_OMAP3_IOMMU_DEVICES 0
60 #define omap3_iommu_pdev NULL
63 #ifdef CONFIG_ARCH_OMAP4
64 static struct iommu_device omap4_devices[] = {
66 .base = OMAP4_MMU1_BASE,
67 .irq = OMAP44XX_IRQ_DUCATI_MMU,
71 .clk_name = "ipu_fck",
77 .base = OMAP4_MMU2_BASE,
78 .irq = OMAP44XX_IRQ_TESLA_MMU,
82 .clk_name = "dsp_fck",
88 #define NR_OMAP4_IOMMU_DEVICES ARRAY_SIZE(omap4_devices)
89 static struct platform_device *omap4_iommu_pdev[NR_OMAP4_IOMMU_DEVICES];
91 #define omap4_devices NULL
92 #define NR_OMAP4_IOMMU_DEVICES 0
93 #define omap4_iommu_pdev NULL
96 static struct platform_device **omap_iommu_pdev;
98 static int __init omap_iommu_init(void)
101 struct resource res[] = {
102 { .flags = IORESOURCE_MEM },
103 { .flags = IORESOURCE_IRQ },
106 if (cpu_is_omap34xx()) {
107 devices = omap3_devices;
108 omap_iommu_pdev = omap3_iommu_pdev;
109 num_iommu_devices = NR_OMAP3_IOMMU_DEVICES;
110 } else if (cpu_is_omap44xx()) {
111 devices = omap4_devices;
112 omap_iommu_pdev = omap4_iommu_pdev;
113 num_iommu_devices = NR_OMAP4_IOMMU_DEVICES;
117 for (i = 0; i < num_iommu_devices; i++) {
118 struct platform_device *pdev;
119 const struct iommu_device *d = &devices[i];
121 pdev = platform_device_alloc("omap-iommu", i);
127 res[0].start = d->base;
128 res[0].end = d->base + MMU_REG_SIZE - 1;
129 res[1].start = res[1].end = d->irq;
131 err = platform_device_add_resources(pdev, res,
135 err = platform_device_add_data(pdev, &d->pdata,
139 err = platform_device_add(pdev);
142 omap_iommu_pdev[i] = pdev;
148 platform_device_put(omap_iommu_pdev[i]);
151 /* must be ready before omap3isp is probed */
152 subsys_initcall(omap_iommu_init);
154 static void __exit omap_iommu_exit(void)
158 for (i = 0; i < num_iommu_devices; i++)
159 platform_device_unregister(omap_iommu_pdev[i]);
161 module_exit(omap_iommu_exit);
163 MODULE_AUTHOR("Hiroshi DOYU");
164 MODULE_DESCRIPTION("omap iommu: omap device registration");
165 MODULE_LICENSE("GPL v2");