soc/mediatek/mt8188: add usb host support

Add usb host function support.

TEST=read usb data successfully.
BUG=b:236331724

Signed-off-by: Shaocheng Wang <shaocheng.wang@mediatek.corp-partner.google.com>
Change-Id: I3494b687b811466cb6b988164d3c5b6fecc3016a
Reviewed-on: https://review.coreboot.org/c/coreboot/+/65754
Reviewed-by: Yidi Lin <yidilin@chromium.org>
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/mediatek/mt8188/Makefile.inc

@@ -19,6 +19,7 @@ romstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c
 ramstage-y += emi.c
 ramstage-y += ../common/mmu_operations.c ../common/mmu_cmops.c
 ramstage-y += soc.c
+ramstage-y += ../common/usb.c usb.c
 
 CPPFLAGS_common += -Isrc/soc/mediatek/mt8188/include
 CPPFLAGS_common += -Isrc/soc/mediatek/common/include

src/soc/mediatek/mt8188/include/soc/addressmap.h

@@ -69,7 +69,7 @@ enum {
 	I2C4_BASE		= IO_PHYS + 0x01E01000,
 	IOCFG_LT_BASE		= IO_PHYS + 0x01E10000,
 	IOCFG_LM_BASE		= IO_PHYS + 0x01E20000,
-	SSUSB_SIF_BASE		= IO_PHYS + 0x01E40000,
+	SSUSB_SIF_BASE		= IO_PHYS + 0x01E40300,
 	IOCFG_RT_BASE		= IO_PHYS + 0x01EA0000,
 	MSDC1_TOP_BASE		= IO_PHYS + 0x01EB0000,
 	I2C5_BASE		= IO_PHYS + 0x01EC0000,

src/soc/mediatek/mt8188/include/soc/usb.h

@@ -0,0 +1,29 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/*
+ * This file is created based on MT8188 Functional Specification
+ * Chapter number: 5.5
+ */
+
+#ifndef SOC_MEDIATEK_MT8188_USB_H
+#define SOC_MEDIATEK_MT8188_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		1
+
+#endif

src/soc/mediatek/mt8188/usb.c

@@ -0,0 +1,21 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+/*
+ * This file is created based on MT8188 Functional Specification
+ * Chapter number: 5.5
+ */
+
+#include <device/mmio.h>
+#include <gpio.h>
+#include <soc/gpio.h>
+#include <soc/infracfg.h>
+#include <soc/pll_common.h>
+#include <soc/usb.h>
+
+void mtk_usb_prepare(void)
+{
+	mt_pll_set_usb_clock();
+
+	/* usb drvvbus for 5v power */
+	gpio_output(GPIO(USB1_DRV_VBUS), 1);
+}