plat/arm/fvp: populate runtime console parameters dynamically
We query the UART base address and clk frequency in runtime
using fconf getter APIs.
Change-Id: I5f4e84953be5f384472bf90720b706d45cb86260
Signed-off-by: Madhukar Pappireddy <madhukar.pappireddy@arm.com>
diff --git a/plat/arm/board/fvp/fvp_console.c b/plat/arm/board/fvp/fvp_console.c
new file mode 100644
index 0000000..928b47b
--- /dev/null
+++ b/plat/arm/board/fvp/fvp_console.c
@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2020, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <assert.h>
+
+#include <platform_def.h>
+
+#include <common/debug.h>
+#include <drivers/arm/pl011.h>
+#include <drivers/console.h>
+#include <fconf_hw_config_getter.h>
+#include <plat/arm/common/plat_arm.h>
+
+static console_t fvp_runtime_console;
+
+/* Initialize the runtime console */
+void arm_console_runtime_init(void)
+{
+ uintptr_t uart_base;
+ uint32_t uart_clk;
+
+ /*
+ * fconf APIs are not supported for RESET_TO_SP_MIN, RESET_TO_BL31 and
+ * BL2_AT_EL3 systems.
+ */
+#if RESET_TO_SP_MIN || RESET_TO_BL31 || BL2_AT_EL3
+ uart_base = PLAT_ARM_RUN_UART_BASE;
+ uart_clk = PLAT_ARM_RUN_UART_CLK_IN_HZ;
+#else
+ uart_base = FCONF_GET_PROPERTY(hw_config, uart_serial_config,
+ uart_base);
+ uart_clk = FCONF_GET_PROPERTY(hw_config, uart_serial_config,
+ uart_clk);
+#endif
+
+ int rc = console_pl011_register(uart_base, uart_clk,
+ ARM_CONSOLE_BAUDRATE,
+ &fvp_runtime_console);
+
+ if (rc == 0) {
+ panic();
+ }
+
+ console_set_scope(&fvp_runtime_console, CONSOLE_FLAG_RUNTIME);
+}
+
+void arm_console_runtime_end(void)
+{
+ (void)console_flush();
+ (void)console_unregister(&fvp_runtime_console);
+}