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author | Hiroshi DOYU <Hiroshi.DOYU@nokia.com> | 2009-01-28 20:32:04 +0100 |
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committer | Hiroshi DOYU <Hiroshi.DOYU@nokia.com> | 2009-05-19 07:23:37 +0200 |
commit | 066aa9c1e3d0af52619fe26f05810990ff381d8c (patch) | |
tree | 8379ecb12988e2dd9b9bf34205552225af2b4bb1 /arch/arm/mach-omap2/omap3-iommu.c | |
parent | omap iommu: omap2 architecture specific functions (diff) | |
download | linux-066aa9c1e3d0af52619fe26f05810990ff381d8c.tar.xz linux-066aa9c1e3d0af52619fe26f05810990ff381d8c.zip |
omap iommu: omap3 iommu device registration
Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
Diffstat (limited to 'arch/arm/mach-omap2/omap3-iommu.c')
-rw-r--r-- | arch/arm/mach-omap2/omap3-iommu.c | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap3-iommu.c b/arch/arm/mach-omap2/omap3-iommu.c new file mode 100644 index 000000000000..91ee38a485a4 --- /dev/null +++ b/arch/arm/mach-omap2/omap3-iommu.c @@ -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"); |