dm: core: Use separate priv/plat data region
Make use of the new priv/plat data region if enabled. This is implemented
as a simple offset from the position set up by dtoc to the new position.
So long as all access goes through dm_priv_to_rw() this is safe.
Signed-off-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/core/root.c b/drivers/core/root.c
index 82b3c7d..d9a19c5 100644
--- a/drivers/core/root.c
+++ b/drivers/core/root.c
@@ -347,6 +347,15 @@
return 0;
}
+#if CONFIG_IS_ENABLED(OF_PLATDATA_INST) && CONFIG_IS_ENABLED(READ_ONLY)
+void *dm_priv_to_rw(void *priv)
+{
+ long offset = priv - (void *)__priv_data_start;
+
+ return gd_dm_priv_base() + offset;
+}
+#endif
+
/**
* dm_scan() - Scan tables to bind devices
*