AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-02 22:06:47 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

omap iommu: omap3 iommu device registration

Browse Source 
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
This commit is contained in:
Hiroshi DOYU 2009-01-28 21:32:04 +02:00
parent 2bcb573343
commit 066aa9c1e3
1 changed files with 103 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

103
arch/arm/mach-omap2/omap3-iommu.c Normal file
View File

@ -0,0 +1,103 @@
/*
* omap iommu: omap3 device registration
*
* Copyright (C) 2008-2009 Nokia Corporation
*
* Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/platform_device.h>
#include <mach/iommu.h>
#define OMAP3_MMU1_BASE 0x480bd400
#define OMAP3_MMU2_BASE 0x5d000000
#define OMAP3_MMU1_IRQ 24
#define OMAP3_MMU2_IRQ 28
static unsigned long iommu_base[] __initdata = {
OMAP3_MMU1_BASE,
OMAP3_MMU2_BASE,
};
static int iommu_irq[] __initdata = {
OMAP3_MMU1_IRQ,
OMAP3_MMU2_IRQ,
};
static const struct iommu_platform_data omap3_iommu_pdata[] __initconst = {
{
.name = "isp",
.nr_tlb_entries = 8,
.clk_name = "cam_ick",
},
{
.name = "iva2",
.nr_tlb_entries = 32,
.clk_name = "iva2_ck",
},
};
#define NR_IOMMU_DEVICES ARRAY_SIZE(omap3_iommu_pdata)
static struct platform_device *omap3_iommu_pdev[NR_IOMMU_DEVICES];
static int __init omap3_iommu_init(void)
{
int i, err;
for (i = 0; i < NR_IOMMU_DEVICES; i++) {
struct platform_device *pdev;
struct resource res[2];
pdev = platform_device_alloc("omap-iommu", i);
if (!pdev) {
err = -ENOMEM;
goto err_out;
}
memset(res, 0, sizeof(res));
res[0].start = iommu_base[i];
res[0].end = iommu_base[i] + MMU_REG_SIZE - 1;
res[0].flags = IORESOURCE_MEM;
res[1].start = res[1].end = iommu_irq[i];
res[1].flags = IORESOURCE_IRQ;
err = platform_device_add_resources(pdev, res,
ARRAY_SIZE(res));
if (err)
goto err_out;
err = platform_device_add_data(pdev, &omap3_iommu_pdata[i],
sizeof(omap3_iommu_pdata[0]));
if (err)
goto err_out;
err = platform_device_add(pdev);
if (err)
goto err_out;
omap3_iommu_pdev[i] = pdev;
}
return 0;
err_out:
while (i--)
platform_device_put(omap3_iommu_pdev[i]);
return err;
}
module_init(omap3_iommu_init);
static void __exit omap3_iommu_exit(void)
{
int i;
for (i = 0; i < NR_IOMMU_DEVICES; i++)
platform_device_unregister(omap3_iommu_pdev[i]);
}
module_exit(omap3_iommu_exit);
MODULE_AUTHOR("Hiroshi DOYU");
MODULE_DESCRIPTION("omap iommu: omap3 device registration");
MODULE_LICENSE("GPL v2");