feat(zynqmp): retrieval of console information from dtb
Introduces functionality to retrieve console information from the
device tree (DTB) and use it in TF-A code.
With fdt_get_stdout_node_offset() function, which reads the 'secure-chosen'
first,'chosen' and 'stdout-path' properties from the DTB, providing a
convenient and standardized way to access serial console information.
Implemented a comparison mechanism between early console information
and the data populated from the DTB. In case of a mismatch, the commit
takes care of unregistering the build-time console configuration and
registering the DTB-based console.
Reorganizes the console configuration setup in BL31 by moving it to a
dedicated function called setup_console() in the plat_console.c
file. This change improves code readability by isolating
console-related settings, making it easier to manage and extend the
console configuration in the future.
Signed-off-by: Prasad Kummari <prasad.kummari@amd.com>
Change-Id: I857042fc0fb8f070bbc11f6b47aa57a72fbe5392
diff --git a/plat/xilinx/common/include/plat_console.h b/plat/xilinx/common/include/plat_console.h
new file mode 100644
index 0000000..0f8320e
--- /dev/null
+++ b/plat/xilinx/common/include/plat_console.h
@@ -0,0 +1,27 @@
+/*
+ * Copyright (c) 2023, Advanced Micro Devices, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef PLAT_DT_UART_H
+#define PLAT_DT_UART_H
+
+#define DT_UART_DCC_COMPAT "arm,dcc"
+
+#if defined(PLAT_zynqmp)
+#define DT_UART_COMPAT "xlnx,zynqmp-uart"
+#else
+#define DT_UART_COMPAT "arm,pl011"
+#endif
+
+typedef struct dt_uart_info_s {
+ char compatible[30];
+ uintptr_t base;
+ uint32_t baud_rate;
+ int32_t status;
+} dt_uart_info_t;
+
+void setup_console(void);
+
+#endif /* PLAT_DT_UART_H */