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Diffstat (limited to 'src/mainboard/amd/mandolin/bootblock.c')
-rw-r--r--src/mainboard/amd/mandolin/bootblock.c19
1 files changed, 19 insertions, 0 deletions
diff --git a/src/mainboard/amd/mandolin/bootblock.c b/src/mainboard/amd/mandolin/bootblock.c
new file mode 100644
index 0000000000..06da379d93
--- /dev/null
+++ b/src/mainboard/amd/mandolin/bootblock.c
@@ -0,0 +1,19 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootblock_common.h>
+#include <amdblocks/lpc.h>
+#include <superio/smsc/sio1036/sio1036.h>
+#include "gpio.h"
+
+#define SERIAL_DEV PNP_DEV(0x4e, SIO1036_SP1)
+
+void bootblock_mainboard_early_init(void)
+{
+ mainboard_program_early_gpios();
+
+ if (CONFIG(SUPERIO_SMSC_SIO1036)) {
+ lpc_enable_sio_decode(LPC_SELECT_SIO_4E4F);
+ lpc_enable_decode(DECODE_ENABLE_SERIAL_PORT0 << CONFIG_UART_FOR_CONSOLE);
+ sio1036_enable_serial(SERIAL_DEV, CONFIG_TTYS0_BASE);
+ }
+}