Signed-off-by: Nipun Gupta <nipun.gu...@nxp.com> --- drivers/iommu/of_iommu.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/drivers/iommu/of_iommu.c b/drivers/iommu/of_iommu.c index ea9ecef..3687882 100644 --- a/drivers/iommu/of_iommu.c +++ b/drivers/iommu/of_iommu.c @@ -25,6 +25,7 @@ #include <linux/of_iommu.h> #include <linux/of_pci.h> #include <linux/slab.h> +#include <linux/fsl/mc.h> #define NO_IOMMU 1 @@ -160,6 +161,23 @@ static int of_pci_iommu_init(struct pci_dev *pdev, u16 alias, void *data) return err; } +static int of_fsl_mc_iommu_init(struct fsl_mc_device *mc_dev, + struct device_node *master_np) +{ + struct of_phandle_args iommu_spec = { .args_count = 1 }; + int err; + + err = of_map_rid(master_np, mc_dev->icid, "iommu-map", + "iommu-map-mask", &iommu_spec.np, + iommu_spec.args); + if (err) + return err == -ENODEV ? NO_IOMMU : err; + + err = of_iommu_xlate(&mc_dev->dev, &iommu_spec); + of_node_put(iommu_spec.np); + return err; +} + const struct iommu_ops *of_iommu_configure(struct device *dev, struct device_node *master_np) { @@ -191,6 +209,8 @@ const struct iommu_ops *of_iommu_configure(struct device *dev, err = pci_for_each_dma_alias(to_pci_dev(dev), of_pci_iommu_init, &info); + } else if (dev_is_fsl_mc(dev)) { + err = of_fsl_mc_iommu_init(to_fsl_mc_device(dev), master_np); } else { struct of_phandle_args iommu_spec; int idx = 0; -- 1.9.1 _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu