1 files changed, 46 insertions, 0 deletions
diff --git a/zephyr/projects/skyrim/src/frostflow/ppc_config.c b/zephyr/projects/skyrim/src/frostflow/ppc_config.c
new file mode 100644
index 0000000000..6072a788eb
--- /dev/null
+++ b/zephyr/projects/skyrim/src/frostflow/ppc_config.c
@@ -0,0 +1,46 @@
+/* Copyright 2022 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* Frostflow board-specific PPC code */
+
+#include <zephyr/drivers/gpio.h>
+
+#include "driver/ppc/nx20p348x.h"
+#include "driver/ppc/aoz1380_public.h"
+#include "usbc_ppc.h"
+
+#define CPRINTSUSB(format, args...) cprints(CC_USBCHARGE, format, ##args)
+#define CPRINTFUSB(format, args...) cprintf(CC_USBCHARGE, format, ##args)
+
+/*
+ * In the AOZ1380 PPC, there are no programmable features.  We use
+ * the attached NCT3807 to control a GPIO to indicate 1A5 or 3A0
+ * current limits.
+ */
+int board_aoz1380_set_vbus_source_current_limit(int port, enum tcpc_rp_value rp)
+{
+	int rv = EC_SUCCESS;
+
+	rv = gpio_pin_set_dt(GPIO_DT_FROM_NODELABEL(ioex_usb_c0_ilim_3a_en),
+			     (rp == TYPEC_RP_3A0) ? 1 : 0);
+
+	return rv;
+}
+
+void ppc_interrupt(enum gpio_signal signal)
+{
+	switch (signal) {
+	case GPIO_USB_C0_PPC_INT_ODL:
+		aoz1380_interrupt(0);
+		break;
+
+	case GPIO_USB_C1_PPC_INT_ODL:
+		nx20p348x_interrupt(1);
+		break;
+
+	default:
+		break;
+	}
+}