3 files changed, 40 insertions, 0 deletions
diff --git a/src/soc/mediatek/mt8192/Makefile.inc b/src/soc/mediatek/mt8192/Makefile.inc
index c7dbe51b22..533eae294d 100644
--- a/src/soc/mediatek/mt8192/Makefile.inc
+++ b/src/soc/mediatek/mt8192/Makefile.inc
@@ -32,6 +32,7 @@ ramstage-y += ../common/mtcmos.c mtcmos.c
 ramstage-y += soc.c
 ramstage-y += ../common/timer.c
 ramstage-y += ../common/uart.c
+ramstage-y += ../common/usb.c usb.c
 
 CPPFLAGS_common += -Isrc/soc/mediatek/mt8192/include
 CPPFLAGS_common += -Isrc/soc/mediatek/common/include
diff --git a/src/soc/mediatek/mt8192/include/soc/usb.h b/src/soc/mediatek/mt8192/include/soc/usb.h
new file mode 100644
index 0000000000..c988270e4b
--- /dev/null
+++ b/src/soc/mediatek/mt8192/include/soc/usb.h
@@ -0,0 +1,24 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#ifndef SOC_MEDIATEK_MT8192_USB_H
+#define SOC_MEDIATEK_MT8192_USB_H
+
+#include <soc/usb_common.h>
+
+struct ssusb_sif_port {
+	struct sif_u2_phy_com u2phy;
+	u32 reserved0[64*5];
+	struct sif_u3phyd u3phyd;
+	u32 reserved1[64];
+	struct sif_u3phya u3phya;
+	struct sif_u3phya_da u3phya_da;
+	u32 reserved2[64 * 3];
+};
+check_member(ssusb_sif_port, u3phyd, 0x600);
+check_member(ssusb_sif_port, u3phya, 0x800);
+check_member(ssusb_sif_port, u3phya_da, 0x900);
+check_member(ssusb_sif_port, reserved2, 0xa00);
+
+#define USB_PORT_NUMBER 2
+
+#endif
diff --git a/src/soc/mediatek/mt8192/usb.c b/src/soc/mediatek/mt8192/usb.c
new file mode 100644
index 0000000000..44f2f150ed
--- /dev/null
+++ b/src/soc/mediatek/mt8192/usb.c
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/addressmap.h>
+#include <device/mmio.h>
+#include <soc/usb.h>
+
+#define REG_SPM_POWERON_CONFIG_EN          (void *)(SPM_BASE + 0x000)
+#define REG_SPM_SSPM_PWR_CON               (void *)(SPM_BASE + 0x390)
+
+void mtk_usb_prepare(void)
+{
+	/* power on SSUSB SRAM FIFO */
+	setbits32(REG_SPM_POWERON_CONFIG_EN, 0xB160001);
+	clrbits32(REG_SPM_SSPM_PWR_CON, 0x000001FF);
+}