diff options
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc.c')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc.c b/drivers/hwtracing/coresight/coresight-tmc.c index d8517d2a968c..864488793f09 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.c +++ b/drivers/hwtracing/coresight/coresight-tmc.c @@ -362,6 +362,13 @@ static int tmc_probe(struct amba_device *adev, const struct amba_id *id) desc.type = CORESIGHT_DEV_TYPE_SINK; desc.subtype.sink_subtype = CORESIGHT_DEV_SUBTYPE_SINK_BUFFER; desc.ops = &tmc_etr_cs_ops; + /* + * ETR configuration uses a 40-bit AXI master in place of + * the embedded SRAM of ETB/ETF. + */ + ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(40)); + if (ret) + goto out; } else { desc.type = CORESIGHT_DEV_TYPE_LINKSINK; desc.subtype.link_subtype = CORESIGHT_DEV_SUBTYPE_LINK_FIFO; |