iommu/of: support iommu configuration for fsl-mc devices
With of_pci_map_rid available for all the busses, use the function for configuration of devices on fsl-mc bus Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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2a6db719c9
Коммит
fa0656b40e
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@ -24,6 +24,7 @@
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#include <linux/of_iommu.h>
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#include <linux/of_pci.h>
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#include <linux/slab.h>
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#include <linux/fsl/mc.h>
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#define NO_IOMMU 1
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@ -142,6 +143,23 @@ static int of_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data)
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return err;
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}
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static int of_fsl_mc_iommu_init(struct fsl_mc_device *mc_dev,
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struct device_node *master_np)
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{
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struct of_phandle_args iommu_spec = { .args_count = 1 };
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int err;
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err = of_map_rid(master_np, mc_dev->icid, "iommu-map",
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"iommu-map-mask", &iommu_spec.np,
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iommu_spec.args);
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if (err)
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return err == -ENODEV ? NO_IOMMU : err;
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err = of_iommu_xlate(&mc_dev->dev, &iommu_spec);
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of_node_put(iommu_spec.np);
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return err;
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}
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const struct iommu_ops *of_iommu_configure(struct device *dev,
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struct device_node *master_np)
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{
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@ -173,6 +191,8 @@ const struct iommu_ops *of_iommu_configure(struct device *dev,
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err = pci_for_each_dma_alias(to_pci_dev(dev),
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of_pci_iommu_init, &info);
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} else if (dev_is_fsl_mc(dev)) {
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err = of_fsl_mc_iommu_init(to_fsl_mc_device(dev), master_np);
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} else {
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struct of_phandle_args iommu_spec;
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int idx = 0;
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