soc/amd/picasso/uart: factor out console-related functions

Move uart_platform_base and uart_platform_refclk to their own
compilation unit to avoid preprocessor usage. The newly created
compilation unit is only added to the build when PICASSO_CONSOLE_UART
is selected.

Change-Id: I56911addc8c000a0772156e5166720867cdd26fe
Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/42517
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 19 insertions, 0 deletions

diff --git a/src/soc/amd/picasso/uart_console.c b/src/soc/amd/picasso/uart_console.c
new file mode 100644
index 0000000000..3ab2a70920
--- /dev/null
+++ b/src/soc/amd/picasso/uart_console.c
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <console/uart.h>
+#include <soc/uart.h>
+
+/*
+ * uart_platform_base and uart_platform_refclk are used by the console UART driver and need to
+ * be provided exactly once and only by the UART that is used for console.
+ */
+
+uintptr_t uart_platform_base(int idx)
+{
+	return get_uart_base(idx);
+}
+
+unsigned int uart_platform_refclk(void)
+{
+	return CONFIG(PICASSO_UART_48MZ) ? 48000000 : 115200 * 16;
+}