fconf: necessary modifications to support fconf in BL31 & SP_MIN
Necessary infrastructure added to integrate fconf framework in BL31 & SP_MIN.
Created few populator() functions which parse HW_CONFIG device tree
and registered them with fconf framework. Many of the changes are
only applicable for fvp platform.
This patch:
1. Adds necessary symbols and sections in BL31, SP_MIN linker script
2. Adds necessary memory map entry for translation in BL31, SP_MIN
3. Creates an abstraction layer for hardware configuration based on
fconf framework
4. Adds necessary changes to build flow (makefiles)
5. Minimal callback to read hw_config dtb for capturing properties
related to GIC(interrupt-controller node)
6. updates the fconf documentation
Change-Id: Ib6292071f674ef093962b9e8ba0d322b7bf919af
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
diff --git a/plat/arm/board/fvp/include/fconf_hw_config_getter.h b/plat/arm/board/fvp/include/fconf_hw_config_getter.h
new file mode 100644
index 0000000..cc1576e
--- /dev/null
+++ b/plat/arm/board/fvp/include/fconf_hw_config_getter.h
@@ -0,0 +1,24 @@
+/*
+ * Copyright (c) 2020, Arm Limited. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef FCONF_HW_CONFIG_GETTER_H
+#define FCONF_HW_CONFIG_GETTER_H
+
+#include <lib/fconf/fconf.h>
+
+/* Hardware Config related getter */
+#define hw_config__gicv3_config_getter(prop) gicv3_config.prop
+
+struct gicv3_config_t {
+ void *gicd_base;
+ void *gicr_base;
+};
+
+int fconf_populate_gicv3_config(uintptr_t config);
+
+extern struct gicv3_config_t gicv3_config;
+
+#endif /* FCONF_HW_CONFIG_GETTER_H */