sb/amd/pi/hudson: fix gpio.h and smi.h include location

This fixes the following compile error when trying to build the APU2
board with HAVE_SMI_HANDLER selected and the NO_SMM select removed:

In file included from src/soc/amd/common/block/gpio/gpio.c:8:
src/include/gpio.h:6:10: fatal error: soc/gpio.h: No such file or directory
    6 | #include <soc/gpio.h> /* IWYU pragma: export */
      |          ^~~~~~~~~~~~

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Ie06044b12f5cbcc55a2706ec566afd2eb294c62b
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79846
Reviewed-by: Matt DeVillier <matt.devillier@amd.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

2 files changed, 22 insertions, 0 deletions

diff --git a/src/southbridge/amd/pi/hudson/include/soc/gpio.h b/src/southbridge/amd/pi/hudson/include/soc/gpio.h
new file mode 100644
index 0000000000..0850fe1764
--- /dev/null
+++ b/src/southbridge/amd/pi/hudson/include/soc/gpio.h
@@ -0,0 +1,11 @@
+/* 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.h>
+
+#define SOC_GPIO_TOTAL_PINS		133
+
+#endif /* SOC_GPIO_H */
diff --git a/src/southbridge/amd/pi/hudson/include/soc/smi.h b/src/southbridge/amd/pi/hudson/include/soc/smi.h
new file mode 100644
index 0000000000..da5ddbc2f7
--- /dev/null
+++ b/src/southbridge/amd/pi/hudson/include/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 */