168 lines
3.6 KiB
C
168 lines
3.6 KiB
C
/*
|
|
* omap iommu: omap 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/module.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include <plat/iommu.h>
|
|
|
|
#include "soc.h"
|
|
#include "common.h"
|
|
|
|
struct iommu_device {
|
|
resource_size_t base;
|
|
int irq;
|
|
struct iommu_platform_data pdata;
|
|
struct resource res[2];
|
|
};
|
|
static struct iommu_device *devices;
|
|
static int num_iommu_devices;
|
|
|
|
#ifdef CONFIG_ARCH_OMAP3
|
|
static struct iommu_device omap3_devices[] = {
|
|
{
|
|
.base = 0x480bd400,
|
|
.irq = 24 + OMAP_INTC_START,
|
|
.pdata = {
|
|
.name = "isp",
|
|
.nr_tlb_entries = 8,
|
|
.clk_name = "cam_ick",
|
|
.da_start = 0x0,
|
|
.da_end = 0xFFFFF000,
|
|
},
|
|
},
|
|
#if defined(CONFIG_OMAP_IOMMU_IVA2)
|
|
{
|
|
.base = 0x5d000000,
|
|
.irq = 28 + OMAP_INTC_START,
|
|
.pdata = {
|
|
.name = "iva2",
|
|
.nr_tlb_entries = 32,
|
|
.clk_name = "iva2_ck",
|
|
.da_start = 0x11000000,
|
|
.da_end = 0xFFFFF000,
|
|
},
|
|
},
|
|
#endif
|
|
};
|
|
#define NR_OMAP3_IOMMU_DEVICES ARRAY_SIZE(omap3_devices)
|
|
static struct platform_device *omap3_iommu_pdev[NR_OMAP3_IOMMU_DEVICES];
|
|
#else
|
|
#define omap3_devices NULL
|
|
#define NR_OMAP3_IOMMU_DEVICES 0
|
|
#define omap3_iommu_pdev NULL
|
|
#endif
|
|
|
|
#ifdef CONFIG_ARCH_OMAP4
|
|
static struct iommu_device omap4_devices[] = {
|
|
{
|
|
.base = OMAP4_MMU1_BASE,
|
|
.irq = 100 + OMAP44XX_IRQ_GIC_START,
|
|
.pdata = {
|
|
.name = "ducati",
|
|
.nr_tlb_entries = 32,
|
|
.clk_name = "ipu_fck",
|
|
.da_start = 0x0,
|
|
.da_end = 0xFFFFF000,
|
|
},
|
|
},
|
|
{
|
|
.base = OMAP4_MMU2_BASE,
|
|
.irq = 28 + OMAP44XX_IRQ_GIC_START,
|
|
.pdata = {
|
|
.name = "tesla",
|
|
.nr_tlb_entries = 32,
|
|
.clk_name = "dsp_fck",
|
|
.da_start = 0x0,
|
|
.da_end = 0xFFFFF000,
|
|
},
|
|
},
|
|
};
|
|
#define NR_OMAP4_IOMMU_DEVICES ARRAY_SIZE(omap4_devices)
|
|
static struct platform_device *omap4_iommu_pdev[NR_OMAP4_IOMMU_DEVICES];
|
|
#else
|
|
#define omap4_devices NULL
|
|
#define NR_OMAP4_IOMMU_DEVICES 0
|
|
#define omap4_iommu_pdev NULL
|
|
#endif
|
|
|
|
static struct platform_device **omap_iommu_pdev;
|
|
|
|
static int __init omap_iommu_init(void)
|
|
{
|
|
int i, err;
|
|
struct resource res[] = {
|
|
{ .flags = IORESOURCE_MEM },
|
|
{ .flags = IORESOURCE_IRQ },
|
|
};
|
|
|
|
if (cpu_is_omap34xx()) {
|
|
devices = omap3_devices;
|
|
omap_iommu_pdev = omap3_iommu_pdev;
|
|
num_iommu_devices = NR_OMAP3_IOMMU_DEVICES;
|
|
} else if (cpu_is_omap44xx()) {
|
|
devices = omap4_devices;
|
|
omap_iommu_pdev = omap4_iommu_pdev;
|
|
num_iommu_devices = NR_OMAP4_IOMMU_DEVICES;
|
|
} else
|
|
return -ENODEV;
|
|
|
|
for (i = 0; i < num_iommu_devices; i++) {
|
|
struct platform_device *pdev;
|
|
const struct iommu_device *d = &devices[i];
|
|
|
|
pdev = platform_device_alloc("omap-iommu", i);
|
|
if (!pdev) {
|
|
err = -ENOMEM;
|
|
goto err_out;
|
|
}
|
|
|
|
res[0].start = d->base;
|
|
res[0].end = d->base + MMU_REG_SIZE - 1;
|
|
res[1].start = res[1].end = d->irq;
|
|
|
|
err = platform_device_add_resources(pdev, res,
|
|
ARRAY_SIZE(res));
|
|
if (err)
|
|
goto err_out;
|
|
err = platform_device_add_data(pdev, &d->pdata,
|
|
sizeof(d->pdata));
|
|
if (err)
|
|
goto err_out;
|
|
err = platform_device_add(pdev);
|
|
if (err)
|
|
goto err_out;
|
|
omap_iommu_pdev[i] = pdev;
|
|
}
|
|
return 0;
|
|
|
|
err_out:
|
|
while (i--)
|
|
platform_device_put(omap_iommu_pdev[i]);
|
|
return err;
|
|
}
|
|
/* must be ready before omap3isp is probed */
|
|
subsys_initcall(omap_iommu_init);
|
|
|
|
static void __exit omap_iommu_exit(void)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < num_iommu_devices; i++)
|
|
platform_device_unregister(omap_iommu_pdev[i]);
|
|
}
|
|
module_exit(omap_iommu_exit);
|
|
|
|
MODULE_AUTHOR("Hiroshi DOYU");
|
|
MODULE_DESCRIPTION("omap iommu: omap device registration");
|
|
MODULE_LICENSE("GPL v2");
|