mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-29 22:16:47 +07:00
5c651ffaee
Currently "tidspbridge" driver uses its own mmu implementation and will migrate to use this "omap iommu" eventually. This config is provided to make this migration happen smoothly. Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
106 lines
2.3 KiB
C
106 lines
2.3 KiB
C
/*
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* omap iommu: omap3 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/platform_device.h>
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#include <mach/iommu.h>
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#define OMAP3_MMU1_BASE 0x480bd400
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#define OMAP3_MMU2_BASE 0x5d000000
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#define OMAP3_MMU1_IRQ 24
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#define OMAP3_MMU2_IRQ 28
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static unsigned long iommu_base[] __initdata = {
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OMAP3_MMU1_BASE,
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OMAP3_MMU2_BASE,
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};
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static int iommu_irq[] __initdata = {
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OMAP3_MMU1_IRQ,
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OMAP3_MMU2_IRQ,
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};
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static const struct iommu_platform_data omap3_iommu_pdata[] __initconst = {
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{
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.name = "isp",
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.nr_tlb_entries = 8,
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.clk_name = "cam_ick",
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},
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#if defined(CONFIG_MPU_BRIDGE_IOMMU)
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{
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.name = "iva2",
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.nr_tlb_entries = 32,
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.clk_name = "iva2_ck",
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},
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#endif
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};
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#define NR_IOMMU_DEVICES ARRAY_SIZE(omap3_iommu_pdata)
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static struct platform_device *omap3_iommu_pdev[NR_IOMMU_DEVICES];
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static int __init omap3_iommu_init(void)
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{
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int i, err;
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for (i = 0; i < NR_IOMMU_DEVICES; i++) {
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struct platform_device *pdev;
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struct resource res[2];
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pdev = platform_device_alloc("omap-iommu", i);
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if (!pdev) {
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err = -ENOMEM;
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goto err_out;
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}
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memset(res, 0, sizeof(res));
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res[0].start = iommu_base[i];
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res[0].end = iommu_base[i] + MMU_REG_SIZE - 1;
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res[0].flags = IORESOURCE_MEM;
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res[1].start = res[1].end = iommu_irq[i];
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res[1].flags = IORESOURCE_IRQ;
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err = platform_device_add_resources(pdev, res,
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ARRAY_SIZE(res));
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if (err)
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goto err_out;
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err = platform_device_add_data(pdev, &omap3_iommu_pdata[i],
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sizeof(omap3_iommu_pdata[0]));
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if (err)
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goto err_out;
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err = platform_device_add(pdev);
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if (err)
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goto err_out;
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omap3_iommu_pdev[i] = pdev;
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}
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return 0;
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err_out:
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while (i--)
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platform_device_put(omap3_iommu_pdev[i]);
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return err;
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}
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module_init(omap3_iommu_init);
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static void __exit omap3_iommu_exit(void)
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{
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int i;
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for (i = 0; i < NR_IOMMU_DEVICES; i++)
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platform_device_unregister(omap3_iommu_pdev[i]);
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}
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module_exit(omap3_iommu_exit);
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MODULE_AUTHOR("Hiroshi DOYU");
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MODULE_DESCRIPTION("omap iommu: omap3 device registration");
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MODULE_LICENSE("GPL v2");
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