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Hiroshi DOYU066aa9c2009-01-28 21:32:04 +02001/*
Kanigeri, Hari44da3972010-04-22 23:26:08 +00002 * omap iommu: omap device registration
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +02003 *
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
Tony Lindgrena1bcc1d2011-11-07 12:27:10 -080013#include <linux/module.h>
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020014#include <linux/platform_device.h>
Omar Ramirez Luna72b15b62012-11-19 19:05:50 -060015#include <linux/err.h>
16#include <linux/slab.h>
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020017
Tony Lindgren2ab7c842012-11-02 12:24:14 -070018#include <linux/platform_data/iommu-omap.h>
Tony Lindgren6f8c9d22012-12-20 11:50:34 -080019#include "omap_hwmod.h"
20#include "omap_device.h"
Tony Lindgren7d7e1eb2012-08-27 17:43:01 -070021
Omar Ramirez Luna72b15b62012-11-19 19:05:50 -060022static int __init omap_iommu_dev_init(struct omap_hwmod *oh, void *unused)
23{
24 struct platform_device *pdev;
25 struct iommu_platform_data *pdata;
26 struct omap_mmu_dev_attr *a = (struct omap_mmu_dev_attr *)oh->dev_attr;
27 static int i;
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020028
Omar Ramirez Luna72b15b62012-11-19 19:05:50 -060029 pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
30 if (!pdata)
31 return -ENOMEM;
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020032
Omar Ramirez Luna72b15b62012-11-19 19:05:50 -060033 pdata->name = oh->name;
Omar Ramirez Luna72b15b62012-11-19 19:05:50 -060034 pdata->nr_tlb_entries = a->nr_tlb_entries;
35 pdata->da_start = a->da_start;
36 pdata->da_end = a->da_end;
Kanigeri, Hari44da3972010-04-22 23:26:08 +000037
Omar Ramirez Luna72b15b62012-11-19 19:05:50 -060038 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 }
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020043
Omar Ramirez Luna72b15b62012-11-19 19:05:50 -060044 pdev = omap_device_build("omap-iommu", i, oh, pdata, sizeof(*pdata),
45 NULL, 0, 0);
46
47 kfree(pdata);
48
49 if (IS_ERR(pdev)) {
50 pr_err("%s: device build err: %ld\n", __func__, PTR_ERR(pdev));
51 return PTR_ERR(pdev);
52 }
53
54 i++;
55
56 return 0;
57}
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020058
Kanigeri, Hari44da3972010-04-22 23:26:08 +000059static int __init omap_iommu_init(void)
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020060{
Omar Ramirez Luna72b15b62012-11-19 19:05:50 -060061 return omap_hwmod_for_each_by_class("mmu", omap_iommu_dev_init, NULL);
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020062}
Ohad Ben-Cohen134d12f2012-03-04 12:01:11 +020063/* must be ready before omap3isp is probed */
Tony Lindgrenb76c8b12013-01-11 11:24:18 -080064omap_subsys_initcall(omap_iommu_init);
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020065
Kanigeri, Hari44da3972010-04-22 23:26:08 +000066static void __exit omap_iommu_exit(void)
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020067{
Omar Ramirez Luna72b15b62012-11-19 19:05:50 -060068 /* Do nothing */
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020069}
Kanigeri, Hari44da3972010-04-22 23:26:08 +000070module_exit(omap_iommu_exit);
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020071
72MODULE_AUTHOR("Hiroshi DOYU");
Kanigeri, Hari44da3972010-04-22 23:26:08 +000073MODULE_DESCRIPTION("omap iommu: omap device registration");
Hiroshi DOYU066aa9c2009-01-28 21:32:04 +020074MODULE_LICENSE("GPL v2");