3 files changed, 21 insertions, 0 deletions
diff --git a/src/southbridge/amd/pi/hudson/Kconfig b/src/southbridge/amd/pi/hudson/Kconfig
index c87d7a0904..6280f3acd0 100644
--- a/src/southbridge/amd/pi/hudson/Kconfig
+++ b/src/southbridge/amd/pi/hudson/Kconfig
@@ -19,6 +19,7 @@ config SOUTHBRIDGE_SPECIFIC_OPTIONS # dummy
 	select HAVE_CF9_RESET_PREPARE
 	select SOC_AMD_COMMON
 	select SOC_AMD_COMMON_BLOCK_ACPIMMIO
+	select SOC_AMD_COMMON_BLOCK_BANKED_GPIOS
 	select SOC_AMD_COMMON_BLOCK_PCI_MMCONF
 
 config EHCI_BAR
diff --git a/src/southbridge/amd/pi/hudson/soc/gpio.h b/src/southbridge/amd/pi/hudson/soc/gpio.h
new file mode 100644
index 0000000000..10a47cb101
--- /dev/null
+++ b/src/southbridge/amd/pi/hudson/soc/gpio.h
@@ -0,0 +1,9 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_GPIO_H
+#define SOC_GPIO_H
+
+/* <soc/gpio.h> must provide gpio_t. */
+#include <amdblocks/gpio_banks.h>
+
+#endif /* SOC_GPIO_H */
diff --git a/src/southbridge/amd/pi/hudson/soc/smi.h b/src/southbridge/amd/pi/hudson/soc/smi.h
new file mode 100644
index 0000000000..da5ddbc2f7
--- /dev/null
+++ b/src/southbridge/amd/pi/hudson/soc/smi.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_SMI_H
+#define SOC_SMI_H
+
+#define SMI_SCI_TRIG			0x08
+#define SMI_SCI_LEVEL			0x0c
+#define SMI_SCI_STATUS			0x10
+#define SMI_SCI_EN			0x14
+
+#endif /* SOC_SMI_H */