[PATCH 05/10] xilinx: Add support for generic board detection

Michal Simek
2021-08-23T07:39:08Z

Add support for changing DT at run time. It is done via board_detection()
which returns platform_id and platform_version which can be used via
board_name_decode() to compose board_local_name string which corresponds
with DT which is should be used.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
---

Changes in v2: None

board/xilinx/common/board.c | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)

diff --git a/board/xilinx/common/board.c b/board/xilinx/common/board.c
index 2aecb14d8e27..92874272893a 100644
--- a/board/xilinx/common/board.c
+++ b/board/xilinx/common/board.c
@@ -463,3 +463,34 @@ int print_cpuinfo(void)
return 0;
}
#endif
+
+#if CONFIG_IS_ENABLED(DTB_RESELECT)
+char * __maybe_unused __weak board_name_decode(void)
+{
+ return NULL;
+}
+
+bool __maybe_unused __weak board_detection(void)
+{
+ return false;
+}
+
+int embedded_dtb_select(void)
+{
+ if (board_detection()) {
+ char *board_local_name;
+
+ board_local_name = board_name_decode();
+ if (board_local_name) {
+ board_name = board_local_name;
+ debug("Detected name: %s\n", board_name);
+
+ /* Time to change DTB on fly */
+ /* Both ways should work here */
+ /* fdtdec_resetup(&rescan); */
+ fdtdec_setup();
+ }
+ }
+ return 0;
+}
+#endif
--
2.33.0