omap iommu: omap3 iommu device registration

Signed-off-by: Hiroshi DOYU <Hiroshi.DOYU@nokia.com>

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");