diff options
| -rw-r--r-- | drivers/soc/qcom/rmtfs_mem.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/soc/qcom/rmtfs_mem.c b/drivers/soc/qcom/rmtfs_mem.c index f83811f51175..9c937d24ba42 100644 --- a/drivers/soc/qcom/rmtfs_mem.c +++ b/drivers/soc/qcom/rmtfs_mem.c @@ -200,6 +200,15 @@ static int qcom_rmtfs_mem_probe(struct platform_device *pdev) rmtfs_mem->client_id = client_id; rmtfs_mem->size = rmem->size; + /* + * If requested, discard the first and last 4k block in order to ensure + * that the rmtfs region isn't adjacent to other protected regions. + */ + if (of_property_read_bool(node, "qcom,use-guard-pages")) { + rmtfs_mem->addr += SZ_4K; + rmtfs_mem->size -= 2 * SZ_4K; + } + device_initialize(&rmtfs_mem->dev); rmtfs_mem->dev.parent = &pdev->dev; rmtfs_mem->dev.groups = qcom_rmtfs_mem_groups; |