soc/amd: Add framework for Glinda SoC

This adds the initial framework for the Glinda SoC, based on what's been
done for Morgana already.

I believe that there's more that can be made common, but that work will
continue as both platforms are developed.

Signed-off-by: Martin Roth <martin.roth@amd.corp-partner.google.com>
Change-Id: I43d0fdb711c441dc410a14f6bb04b808abefe920
Reviewed-on: https://review.coreboot.org/c/coreboot/+/68684
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/src/soc/amd/glinda/gpio.c b/src/soc/amd/glinda/gpio.c
new file mode 100644
index 0000000000..35d2bca47a
--- /dev/null
+++ b/src/soc/amd/glinda/gpio.c
@@ -0,0 +1,41 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/* TODO: Update for Glinda */
+
+#include <amdblocks/gpio.h>
+#include <soc/gpio.h>
+#include <types.h>
+
+/* see the IOMUX function table for the mapping from GPIO number to GEVENT number */
+static const struct soc_amd_event gpio_event_table[] = {
+	{ GPIO_0, GEVENT_21 }, /* GPIO0 may only be used as PWR_BTN_L in ACPI */
+	{ GPIO_1, GEVENT_19 },
+	{ GPIO_2, GEVENT_8 },
+	{ GPIO_3, GEVENT_2 },
+	{ GPIO_4, GEVENT_4 },
+	{ GPIO_5, GEVENT_7 },
+	{ GPIO_6, GEVENT_10 },
+	{ GPIO_7, GEVENT_11 },
+	{ GPIO_8, GEVENT_23 },
+	{ GPIO_9, GEVENT_22 },
+	{ GPIO_11, GEVENT_5 },
+	{ GPIO_16, GEVENT_12 },
+	{ GPIO_17, GEVENT_13 },
+	{ GPIO_18, GEVENT_14 },
+	{ GPIO_22, GEVENT_3 },
+	{ GPIO_23, GEVENT_16 },
+	{ GPIO_24, GEVENT_15 },
+	{ GPIO_29, GEVENT_9 },
+	{ GPIO_32, GEVENT_17 },
+	{ GPIO_40, GEVENT_20 },
+	{ GPIO_84, GEVENT_18 },
+	{ GPIO_89, GEVENT_0 },
+	{ GPIO_90, GEVENT_1 },
+	{ GPIO_91, GEVENT_6 },
+};
+
+void soc_get_gpio_event_table(const struct soc_amd_event **table, size_t *items)
+{
+	*table = gpio_event_table;
+	*items = ARRAY_SIZE(gpio_event_table);
+}