forked from Minki/linux
3c92748df9
As OMAP2+ is moving to a full DT boot for all SoC families, commit
7ce93f3 "ARM: OMAP2+: Fix more missing data for omap3.dtsi file"
adds basic DT bits for OMAP3. But the driver is not yet converted,
so this will not work and driver will not be probed. Convert it!
The legacy boot mode is still supported until OMAP3 is converted
to DT-boot only.
Signed-off-by: Florian Vaussard <florian.vaussard@epfl.ch>
[s-anna@ti.com: dev_name adaptation and improved error checking]
Signed-off-by: Suman Anna <s-anna@ti.com>
[tony@atomide.com: Ack for arch/arm/*omap* parts]
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
/*
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* omap iommu: omap device registration
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*
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* Copyright (C) 2008-2009 Nokia Corporation
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*
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* Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/of.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/err.h>
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#include <linux/slab.h>
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#include <linux/platform_data/iommu-omap.h>
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#include "soc.h"
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#include "omap_hwmod.h"
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#include "omap_device.h"
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static int __init omap_iommu_dev_init(struct omap_hwmod *oh, void *unused)
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{
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struct platform_device *pdev;
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struct iommu_platform_data *pdata;
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struct omap_mmu_dev_attr *a = (struct omap_mmu_dev_attr *)oh->dev_attr;
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static int i;
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pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
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if (!pdata)
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return -ENOMEM;
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pdata->name = oh->name;
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pdata->nr_tlb_entries = a->nr_tlb_entries;
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pdata->da_start = a->da_start;
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pdata->da_end = a->da_end;
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if (oh->rst_lines_cnt == 1) {
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pdata->reset_name = oh->rst_lines->name;
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pdata->assert_reset = omap_device_assert_hardreset;
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pdata->deassert_reset = omap_device_deassert_hardreset;
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}
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pdev = omap_device_build("omap-iommu", i, oh, pdata, sizeof(*pdata));
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kfree(pdata);
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if (IS_ERR(pdev)) {
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pr_err("%s: device build err: %ld\n", __func__, PTR_ERR(pdev));
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return PTR_ERR(pdev);
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}
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i++;
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return 0;
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}
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static int __init omap_iommu_init(void)
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{
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/* If dtb is there, the devices will be created dynamically */
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if (of_have_populated_dt())
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return -ENODEV;
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return omap_hwmod_for_each_by_class("mmu", omap_iommu_dev_init, NULL);
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}
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/* must be ready before omap3isp is probed */
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omap_subsys_initcall(omap_iommu_init);
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static void __exit omap_iommu_exit(void)
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{
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/* Do nothing */
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}
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module_exit(omap_iommu_exit);
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MODULE_AUTHOR("Hiroshi DOYU");
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MODULE_DESCRIPTION("omap iommu: omap device registration");
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MODULE_LICENSE("GPL v2");
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