diff options
author | Grant Likely <grant.likely@secretlab.ca> | 2010-05-22 00:36:56 -0600 |
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committer | Grant Likely <grant.likely@secretlab.ca> | 2010-05-22 00:36:56 -0600 |
commit | cf9b59e9d3e008591d1f54830f570982bb307a0d (patch) | |
tree | 113478ce8fd8c832ba726ffdf59b82cb46356476 /arch/arm/mach-omap2/omap-iommu.c | |
parent | 44504b2bebf8b5823c59484e73096a7d6574471d (diff) | |
parent | f4b87dee923342505e1ddba8d34ce9de33e75050 (diff) |
Merge remote branch 'origin' into secretlab/next-devicetree
Merging in current state of Linus' tree to deal with merge conflicts and
build failures in vio.c after merge.
Conflicts:
drivers/i2c/busses/i2c-cpm.c
drivers/i2c/busses/i2c-mpc.c
drivers/net/gianfar.c
Also fixed up one line in arch/powerpc/kernel/vio.c to use the
correct node pointer.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Diffstat (limited to 'arch/arm/mach-omap2/omap-iommu.c')
-rw-r--r-- | arch/arm/mach-omap2/omap-iommu.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/omap-iommu.c b/arch/arm/mach-omap2/omap-iommu.c new file mode 100644 index 00000000000..eb9bee73e0c --- /dev/null +++ b/arch/arm/mach-omap2/omap-iommu.c @@ -0,0 +1,157 @@ +/* + * 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/platform_device.h> + +#include <plat/iommu.h> +#include <plat/irqs.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, + .pdata = { + .name = "isp", + .nr_tlb_entries = 8, + .clk_name = "cam_ick", + }, + }, +#if defined(CONFIG_MPU_BRIDGE_IOMMU) + { + .base = 0x5d000000, + .irq = 28, + .pdata = { + .name = "iva2", + .nr_tlb_entries = 32, + .clk_name = "iva2_ck", + }, + }, +#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 = INT_44XX_DUCATI_MMU_IRQ, + .pdata = { + .name = "ducati", + .nr_tlb_entries = 32, + .clk_name = "ducati_ick", + }, + }, +#if defined(CONFIG_MPU_TESLA_IOMMU) + { + .base = OMAP4_MMU2_BASE, + .irq = INT_44XX_DSP_MMU, + .pdata = { + .name = "tesla", + .nr_tlb_entries = 32, + .clk_name = "tesla_ick", + }, + }, +#endif +}; +#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; +} +module_init(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"); |