diff options
Diffstat (limited to 'drivers/remoteproc/omap_remoteproc.c')
| -rw-r--r-- | drivers/remoteproc/omap_remoteproc.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c index 9ae2e831456d..5f463937cbbf 100644 --- a/drivers/remoteproc/omap_remoteproc.c +++ b/drivers/remoteproc/omap_remoteproc.c @@ -37,6 +37,10 @@ #include <linux/platform_data/dmtimer-omap.h> +#ifdef CONFIG_ARM_DMA_USE_IOMMU +#include <asm/dma-iommu.h> +#endif + #include "omap_remoteproc.h" #include "remoteproc_internal.h" @@ -1133,7 +1137,6 @@ static int omap_rproc_get_boot_data(struct platform_device *pdev, struct device_node *np = pdev->dev.of_node; struct omap_rproc *oproc = rproc->priv; const struct omap_rproc_dev_data *data; - int ret; data = of_device_get_match_data(&pdev->dev); if (!data) @@ -1149,10 +1152,8 @@ static int omap_rproc_get_boot_data(struct platform_device *pdev, oproc->boot_data->syscon = syscon_regmap_lookup_by_phandle(np, "ti,bootreg"); - if (IS_ERR(oproc->boot_data->syscon)) { - ret = PTR_ERR(oproc->boot_data->syscon); - return ret; - } + if (IS_ERR(oproc->boot_data->syscon)) + return PTR_ERR(oproc->boot_data->syscon); if (of_property_read_u32_index(np, "ti,bootreg", 1, &oproc->boot_data->boot_reg)) { @@ -1323,6 +1324,19 @@ static int omap_rproc_probe(struct platform_device *pdev) /* All existing OMAP IPU and DSP processors have an MMU */ rproc->has_iommu = true; +#ifdef CONFIG_ARM_DMA_USE_IOMMU + /* + * Throw away the ARM DMA mapping that we'll never use, so it doesn't + * interfere with the core rproc->domain and we get the right DMA ops. + */ + if (pdev->dev.archdata.mapping) { + struct dma_iommu_mapping *mapping = to_dma_iommu_mapping(&pdev->dev); + + arm_iommu_detach_device(&pdev->dev); + arm_iommu_release_mapping(mapping); + } +#endif + ret = omap_rproc_of_get_internal_memories(pdev, rproc); if (ret) return ret; |