projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 066aa9c1 | 1 | /* |
| 44da397f | 2 | * omap iommu: omap device registration |
| 066aa9c1 HD |
3 | * |
| 4 | * Copyright (C) 2008-2009 Nokia Corporation | |
| 5 | * | |
| 6 | * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com> | |
| 7 | * | |
| 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. | |
| 11 | */ | |
| 12 | ||
| 3c92748d | 13 | #include <linux/of.h> |
| a1bcc1dc | 14 | #include <linux/module.h> |
| 066aa9c1 | 15 | #include <linux/platform_device.h> |
| 72b15b6a ORL |
16 | #include <linux/err.h> |
| 17 | #include <linux/slab.h> | |
| 066aa9c1 | 18 | |
| 2ab7c848 | 19 | #include <linux/platform_data/iommu-omap.h> |
| dad2d9e6 | 20 | #include "soc.h" |
| 6f8c9d21 TL |
21 | #include "omap_hwmod.h" |
| 22 | #include "omap_device.h" | |
| 7d7e1eba | 23 | |
| 72b15b6a | 24 | static int __init omap_iommu_dev_init(struct omap_hwmod *oh, void *unused) |
| 066aa9c1 | 25 | { |
| 72b15b6a ORL |
26 | struct platform_device *pdev; |
| 27 | struct iommu_platform_data *pdata; | |
| 28 | struct omap_mmu_dev_attr *a = (struct omap_mmu_dev_attr *)oh->dev_attr; | |
| 29 | static int i; | |
| 30 | ||
| 31 | pdata = kzalloc(sizeof(*pdata), GFP_KERNEL); | |
| 32 | if (!pdata) | |
| 33 | return -ENOMEM; | |
| 34 | ||
| 35 | pdata->name = oh->name; | |
| 72b15b6a | 36 | pdata->nr_tlb_entries = a->nr_tlb_entries; |
| 72b15b6a ORL |
37 | |
| 38 | if (oh->rst_lines_cnt == 1) { | |
| 39 | pdata->reset_name = oh->rst_lines->name; | |
| 40 | pdata->assert_reset = omap_device_assert_hardreset; | |
| 41 | pdata->deassert_reset = omap_device_deassert_hardreset; | |
| 42 | } | |
| 066aa9c1 | 43 | |
| c1d1cd59 | 44 | pdev = omap_device_build("omap-iommu", i, oh, pdata, sizeof(*pdata)); |
| f779f923 | 45 | |
| 72b15b6a | 46 | kfree(pdata); |
| 066aa9c1 | 47 | |
| 72b15b6a ORL |
48 | if (IS_ERR(pdev)) { |
| 49 | pr_err("%s: device build err: %ld\n", __func__, PTR_ERR(pdev)); | |
| 50 | return PTR_ERR(pdev); | |
| 51 | } | |
| 066aa9c1 | 52 | |
| 72b15b6a | 53 | i++; |
| 066aa9c1 | 54 | |
| 066aa9c1 | 55 | return 0; |
| 72b15b6a | 56 | } |
| 066aa9c1 | 57 | |
| 72b15b6a ORL |
58 | static int __init omap_iommu_init(void) |
| 59 | { | |
| 3c92748d FV |
60 | /* If dtb is there, the devices will be created dynamically */ |
| 61 | if (of_have_populated_dt()) | |
| 62 | return -ENODEV; | |
| 63 | ||
| 72b15b6a | 64 | return omap_hwmod_for_each_by_class("mmu", omap_iommu_dev_init, NULL); |
| 066aa9c1 | 65 | } |
| 134d12fa | 66 | /* must be ready before omap3isp is probed */ |
| b76c8b19 | 67 | omap_subsys_initcall(omap_iommu_init); |
| 066aa9c1 | 68 | |
| 44da397f | 69 | static void __exit omap_iommu_exit(void) |
| 066aa9c1 | 70 | { |
| 72b15b6a | 71 | /* Do nothing */ |
| 066aa9c1 | 72 | } |
| 44da397f | 73 | module_exit(omap_iommu_exit); |
| 066aa9c1 HD |
74 | |
| 75 | MODULE_AUTHOR("Hiroshi DOYU"); | |
| 44da397f | 76 | MODULE_DESCRIPTION("omap iommu: omap device registration"); |
| 066aa9c1 | 77 | MODULE_LICENSE("GPL v2"); |