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>
24 struct iommu_platform_data pdata;
25 struct resource res[2];
27 static struct iommu_device *devices;
28 static int num_iommu_devices;
30 #ifdef CONFIG_ARCH_OMAP3
31 static struct iommu_device omap3_devices[] = {
34 .irq = 24 + OMAP_INTC_START,
38 .clk_name = "cam_ick",
43 #if defined(CONFIG_OMAP_IOMMU_IVA2)
46 .irq = 28 + OMAP_INTC_START,
50 .clk_name = "iva2_ck",
51 .da_start = 0x11000000,
57 #define NR_OMAP3_IOMMU_DEVICES ARRAY_SIZE(omap3_devices)
58 static struct platform_device *omap3_iommu_pdev[NR_OMAP3_IOMMU_DEVICES];
60 #define omap3_devices NULL
61 #define NR_OMAP3_IOMMU_DEVICES 0
62 #define omap3_iommu_pdev NULL
65 #ifdef CONFIG_ARCH_OMAP4
66 static struct iommu_device omap4_devices[] = {
68 .base = OMAP4_MMU1_BASE,
69 .irq = 100 + OMAP44XX_IRQ_GIC_START,
73 .clk_name = "ipu_fck",
79 .base = OMAP4_MMU2_BASE,
80 .irq = 28 + OMAP44XX_IRQ_GIC_START,
84 .clk_name = "dsp_fck",
90 #define NR_OMAP4_IOMMU_DEVICES ARRAY_SIZE(omap4_devices)
91 static struct platform_device *omap4_iommu_pdev[NR_OMAP4_IOMMU_DEVICES];
93 #define omap4_devices NULL
94 #define NR_OMAP4_IOMMU_DEVICES 0
95 #define omap4_iommu_pdev NULL
98 static struct platform_device **omap_iommu_pdev;
100 static int __init omap_iommu_init(void)
103 struct resource res[] = {
104 { .flags = IORESOURCE_MEM },
105 { .flags = IORESOURCE_IRQ },
108 if (cpu_is_omap34xx()) {
109 devices = omap3_devices;
110 omap_iommu_pdev = omap3_iommu_pdev;
111 num_iommu_devices = NR_OMAP3_IOMMU_DEVICES;
112 } else if (cpu_is_omap44xx()) {
113 devices = omap4_devices;
114 omap_iommu_pdev = omap4_iommu_pdev;
115 num_iommu_devices = NR_OMAP4_IOMMU_DEVICES;
119 for (i = 0; i < num_iommu_devices; i++) {
120 struct platform_device *pdev;
121 const struct iommu_device *d = &devices[i];
123 pdev = platform_device_alloc("omap-iommu", i);
129 res[0].start = d->base;
130 res[0].end = d->base + MMU_REG_SIZE - 1;
131 res[1].start = res[1].end = d->irq;
133 err = platform_device_add_resources(pdev, res,
137 err = platform_device_add_data(pdev, &d->pdata,
141 err = platform_device_add(pdev);
144 omap_iommu_pdev[i] = pdev;
150 platform_device_put(omap_iommu_pdev[i]);
153 /* must be ready before omap3isp is probed */
154 subsys_initcall(omap_iommu_init);
156 static void __exit omap_iommu_exit(void)
160 for (i = 0; i < num_iommu_devices; i++)
161 platform_device_unregister(omap_iommu_pdev[i]);
163 module_exit(omap_iommu_exit);
165 MODULE_AUTHOR("Hiroshi DOYU");
166 MODULE_DESCRIPTION("omap iommu: omap device registration");
167 MODULE_LICENSE("GPL v2");