feat(plat/rcar3): emit RPC status to DT fragment if RPC unlocked
In case the RCAR_RPC_HYPERFLASH_LOCKED is 0, emit DT node /soc/rpc@ee200000
with property status = "okay" into the DT fragment passed to subsequent
software, to indicate the RPC is unlocked.
Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Change-Id: Id93c4573ab1c62cf13fa5a803dc5818584a2c13a
diff --git a/plat/renesas/rcar/bl2_plat_setup.c b/plat/renesas/rcar/bl2_plat_setup.c
index 1d2977a..41b2d11 100644
--- a/plat/renesas/rcar/bl2_plat_setup.c
+++ b/plat/renesas/rcar/bl2_plat_setup.c
@@ -565,6 +565,33 @@
}
}
+static void bl2_add_rpc_node(void)
+{
+#if (RCAR_RPC_HYPERFLASH_LOCKED == 0)
+ int ret, node;
+
+ node = ret = fdt_add_subnode(fdt, 0, "soc");
+ if (ret < 0) {
+ goto err;
+ }
+
+ node = ret = fdt_add_subnode(fdt, node, "rpc@ee200000");
+ if (ret < 0) {
+ goto err;
+ }
+
+ ret = fdt_setprop_string(fdt, node, "status", "okay");
+ if (ret < 0) {
+ goto err;
+ }
+
+ return;
+err:
+ NOTICE("BL2: Cannot add RPC node to FDT (ret=%i)\n", ret);
+ panic();
+#endif
+}
+
static void bl2_add_dram_entry(uint64_t start, uint64_t size)
{
char nodename[32] = { 0 };
@@ -1010,6 +1037,9 @@
/* Add platform compatible string */
bl2_populate_compatible_string(fdt);
+ /* Enable RPC if unlocked */
+ bl2_add_rpc_node();
+
/* Print DRAM layout */
bl2_advertise_dram_size(product);