From: "shun-yi.wang" <shun-yi.wang@xxxxxxxxxxxx>
SCP supports multiple reserved memory regions, intended for
specific hardwards.
Signed-off-by: shun-yi.wang <shun-yi.wang@xxxxxxxxxxxx>
---
drivers/remoteproc/mtk_scp.c | 27 ++++++++++++++++++---------
1 file changed, 18 insertions(+), 9 deletions(-)
diff --git a/drivers/remoteproc/mtk_scp.c b/drivers/remoteproc/mtk_scp.c
index 857a61760b27..0e799d0bf73d 100644
--- a/drivers/remoteproc/mtk_scp.c
+++ b/drivers/remoteproc/mtk_scp.c
@@ -1006,20 +1006,29 @@ EXPORT_SYMBOL_GPL(scp_mapping_dm_addr);
static int scp_map_memory_region(struct mtk_scp *scp)
{
- int ret;
const struct mtk_scp_sizes_data *scp_sizes;
+ struct device_node *node = scp->dev->of_node;
+ struct of_phandle_iterator it;
+ int ret, err;
+ int i = 0;
- ret = of_reserved_mem_device_init(scp->dev);
+ of_for_each_phandle(&it, err, node, "memory-region", NULL, 0) {
+ ret = of_reserved_mem_device_init_by_idx(scp->dev, node, i);
- /* reserved memory is optional. */
- if (ret == -ENODEV) {
- dev_info(scp->dev, "skipping reserved memory initialization.");
- return 0;
+ if (ret) {
+ dev_err(scp->dev, "failed to assign memory-region: %s\n",
+ it.node->name);
+ of_node_put(it.node);
+ return -ENOMEM;
+ }
+
+ i++;
}
- if (ret) {
- dev_err(scp->dev, "failed to assign memory-region: %d\n", ret);
- return -ENOMEM;
+ /* reserved memory is optional. */
+ if (i == 0) {
+ dev_dbg(scp->dev, "skipping reserved memory initialization.");
+ return 0;
}
/* Reserved SCP code size */
--
2.18.0
